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CN-122025404-A - Adjustable die structure and method for winding transformer coil

CN122025404ACN 122025404 ACN122025404 ACN 122025404ACN-122025404-A

Abstract

The invention relates to an adjustable die structure and method for winding a transformer coil, and belongs to the technical field of transformers. The technical scheme is that a groove (14) which is longitudinally arranged is formed in the top of a foundation stay (5) at the outermost side of a cylindrical structure, coil stays (12) are clamped in the groove, the diameter range of the foundation stay (5) of an adjustable die (11) meets the inner diameter requirement of a wound transformer coil, the number of supporting belts of the adjustable die (11) is equal to that of the coil stays of the transformer coil, and the foundation stay on each supporting belt clamps one coil stay to directly perform winding operation of the transformer coil. The adjustable die is convenient to operate, the coil can be directly wound after being adjusted to the diameter which meets the requirement of the inner diameter of the coil, the adjustable die has the structural advantage of an iron die, the adjustable die is optimized, links such as uniform division, scribing and fixing stay are saved, the coil manufacturing efficiency is effectively improved, the manpower is saved, and the popularization and the use of the adjustable die are facilitated.

Inventors

  • YUAN XUELIAN
  • MA YACHAO
  • WANG JINGTAO
  • TANG JINGLEI
  • LU HAO
  • HUANG SHAOLONG
  • KONG WEIDONG
  • WANG HAO

Assignees

  • 保定保菱变压器有限公司

Dates

Publication Date
20260512
Application Date
20241111

Claims (10)

  1. 1. An adjustable die structure for winding a transformer coil comprises a mandrel (1), a sliding sleeve mechanism (2), basic supporting strips (5), a driving mechanism (8) and supporting rods (9), wherein a plurality of sets of sliding sleeve mechanisms (2) are uniformly arranged on the mandrel (1) along the axial direction, the driving mechanism (8) is in driving connection with the plurality of sets of sliding sleeve mechanisms (2), each set of sliding sleeve mechanism (2) is connected with the same basic supporting strip (5) through the supporting rods (9), the sliding sleeve mechanisms (2), the supporting strips (9) and the basic supporting strips (5) form a supporting strip which is arranged along the radial direction of the mandrel (1), the supporting strips are uniformly distributed on the mandrel, the whole structure is a cylindrical structure, and is called an adjustable die (11), and is characterized in that grooves (14) which are longitudinally arranged are formed in the tops of the basic supporting strips (5) on the outermost side of the cylindrical structure, the grooves (14) clamp coil supporting strips (12), the diameter range of the basic supporting strips (5) of the adjustable die (11) meets the inner diameter requirement of the wound transformer coil, the number of the supporting strips is equal to the number of the coil supporting strips (12) of the transformer coil, each supporting strip is clamped on the supporting strip of the supporting strip, and the coil supporting strip is directly wound on the supporting strip (5), and the coil supporting strip is directly wound on the supporting strip.
  2. 2. An adjustable die structure for winding a transformer coil as set forth in claim 1 wherein said recess (14) has a width matching a width of a bottom of the coil stay (12).
  3. 3. An adjustable die structure for winding a transformer coil comprises a mandrel (1), a sliding sleeve mechanism (2), basic stays (5), a driving mechanism (8) and supporting rods (9), wherein a plurality of sets of sliding sleeve mechanisms (2) are uniformly arranged on the mandrel (1) along the axial direction, the driving mechanism (8) is in driving connection with the plurality of sets of sliding sleeve mechanisms (2), each set of sliding sleeve mechanism (2) is connected with the same basic stay (5) through the supporting rods (9), the sliding sleeve mechanism (2), the supporting rods (9) and the basic stays (5) together form a supporting band which is arranged along the radial direction of the mandrel (1), the plurality of supporting bands are uniformly distributed on the mandrel, the whole body of the supporting band forms a cylindrical structure, namely an adjustable die (11), and the adjustable die is characterized in that grooves (14) are formed in the top of the basic stay (5) which are longitudinally arranged on the outermost side of the cylindrical structure, the diameter range of the basic stay (5) meets the inner diameter requirement of the wound transformer coil, the number of the supporting bands is unequal to the number of the coil stays (12), the basic stay (5) on each supporting band cannot be in one-to-one correspondence with the coil stays (12), the supporting band is arranged on the basis stays (5), the supporting band is in one-to-one correspondence with the coil stays (12), the radial direction, the coil stays (13) are wound on the outer side of the coil (13) or a cardboard is wound, and the cardboard is wound on the coil (13), and the paper sheet is wound on the outer side, and the coil is fixed.
  4. 4. An adjustable die structure for winding a transformer coil comprises a mandrel (1), a sliding sleeve mechanism (2), basic stays (5), a driving mechanism (8) and supporting rods (9), wherein a plurality of sets of sliding sleeve mechanisms (2) are uniformly arranged on the mandrel (1) along the axial direction, the driving mechanism (8) is in driving connection with the plurality of sets of sliding sleeve mechanisms (2), each set of sliding sleeve mechanism (2) is connected with the same basic stay (5) through the supporting rods (9), the sliding sleeve mechanism (2), the supporting rods (9) and the basic stays (5) together form a supporting band which is arranged along the radial direction of the mandrel (1), the plurality of supporting bands are uniformly distributed on the mandrel, the whole structure is called an adjustable die (11), and the adjustable die structure is characterized in that grooves (14) which are longitudinally arranged are formed in the top of the basic stay (5) at the outermost side of the cylindrical structure, the diameter range of the basic stay (5) cannot meet the requirement of winding the transformer coil, the auxiliary stay (6) is clamped in the grooves (14), the diameter range of the basic stay (5) of the adjustable die after the auxiliary stay (6) meets the diameter range of the supporting band which is arranged along the radial direction of the mandrel (1), the supporting band is uniformly distributed on the mandrel, the supporting band is required to be wound on the outer side of the winding coil (13), and the hard paper board (13) is wound by the hard paper board, and the hard paper board (13) is wound on the winding the coil, and the hard paper board is fixed.
  5. 5. The adjustable die structure for winding the transformer coil according to claim 4, wherein the auxiliary stay (6) is composed of an auxiliary stay plane (19), an auxiliary stay slope (20) and an auxiliary stay limiting protrusion (21), the auxiliary stay limiting protrusion (21) is located at the bottom of the auxiliary stay (6), the width of the auxiliary stay limiting protrusion (21) is matched with the width of a groove (14) on the top of the basic stay (5), the auxiliary stay limiting protrusion (21) is embedded into the groove (14), the auxiliary stay plane (19) is located at the center of the top of the auxiliary stay (6), and the auxiliary stay slope (20) is arranged around the auxiliary stay plane (19).
  6. 6. The adjustable die structure for winding the transformer coil according to claim 5, wherein the auxiliary stay plane (19) is provided with an auxiliary stay binding groove (22) which is transversely arranged, the auxiliary stay limiting protrusion (21) is used for fixing and limiting the auxiliary stay to be clamped in the groove (14) of the basic stay (5), and the auxiliary stay binding band (23) is used for fixing the auxiliary stay (6) and the adjustable die firmly in the auxiliary stay binding groove (22).
  7. 7. The adjustable die structure for winding a transformer coil according to claim 6, wherein the number of the auxiliary stay binding grooves (22) is 2-3, and the auxiliary stay binding grooves are uniformly distributed along the length direction of the auxiliary stay (6).
  8. 8. An adjustable mould structure for winding a transformer coil according to claim 1 or 3, characterized in that the basic stay (5) is composed of a stay crown (17) and a stay sole (18), the stay sole (18) is fixedly connected with the stay bar (9), and a groove (14) is arranged at the top of the stay crown (17).
  9. 9. An adjustable die structure for winding a transformer coil according to claim 8, wherein the width of the groove (14) is a, the stay crown (17) outside the groove remains a flat surface (15) with a width b, and a slope (16) is arranged outside the flat surface (15).
  10. 10. A method for using an adjustable die structure for winding a transformer coil according to claims 1, 2 and 3 is characterized in that an adjustable die with the outer diameter matched with the inner diameter required by the transformer coil to be wound is selected according to the inner diameter requirement of a coil drawing, the adjustable die is mounted on a winding machine, if the diameter range of a basic stay (5) of an adjustable die (11) meets the inner diameter requirement of the transformer coil to be wound, the number of supporting strips of the adjustable die (11) is equal to the number of coil stays (12) of the transformer coil, the basic stay (5) on each supporting strip clamps one coil stay (12) to directly perform the transformer coil winding operation, if the diameter range of the basic stay (5) of the adjustable die (11) meets the inner diameter requirement of the transformer coil to be wound, the number of the supporting strips is unequal to the number of the coil stays (12), the basic stay (5) on each supporting strip cannot be in one-to-one correspondence with the coil stays (12), the outer side of the basic stay (5) is wrapped with a cardboard cylinder (13), the cardboard or the cardboard cylinder (13) is fixed with the outer side of the transformer coil (12), then the diameter of the coil (12) is clamped on the cardboard cylinder (13) is fixed, if the inner diameter range of the diameter of the basic stay (5) of the adjustable die (5) meets the inner diameter requirement of the coil (12) to be wound is not equal to the inner diameter requirement of the coil (12) to be wound, and the inner diameter requirement of the coil (6) is required to be wound, and the basic stay (6) can meet the inner diameter requirement of the auxiliary diameter requirement of the coil needs is wound is required by the adjustable stay (6 is required has auxiliary diameter stay (6) is required to be wound, the auxiliary stay (6) is wrapped with cardboard or penetrates into the cardboard barrel (13), the coil stay (12) of the transformer coil is fixed on the outer side of the cardboard or cardboard barrel (13), and then the transformer coil winding operation is carried out.

Description

Adjustable die structure and method for winding transformer coil Technical Field The invention relates to an adjustable die structure and method for winding a transformer coil, and belongs to the technical field of transformers. Background In the field of transformer manufacturing, along with the lifting of a manufacturing level and the continuous optimization of a coil structure, an adjustable die for winding a coil is used in multiple uses, for example, a Chinese patent CN 201410322532.7 is named as an adjustable die for winding a transformer coil, a plurality of sets of sliding sleeve mechanisms are uniformly arranged on a mandrel along the axial direction, a driving mechanism is in driving connection with the sets of sliding sleeve mechanisms, each set of sliding sleeve mechanism is connected with the same auxiliary stay through a stay rod, the sliding sleeve mechanism is driven to slide on the mandrel through the driving mechanism, the angle between the stay rod and the mandrel can be changed, so that a basic stay rod on the sliding sleeve mechanism is driven to open or shrink, the outer diameter is changed, the coil winding requirement is met, the size of the adjustable die is convenient to adjust, and the adjustable die is more suitable for being used by a vertical winding machine and is the popularization direction of the coil die. But traditional iron mould also has certain advantage, referring to fig. 1, 2, iron mould comprises mold core, channel-section steel stay and regulation cushion, and iron mould's mold core comprises backup pad, connecting pipe and axle sleeve, and the appearance is a cylinder, according to coil stay root equipartition screw hole in the backup pad, generally can arrange 3~4 kinds of stay root numbers in every backup pad. The iron mold is used by selecting a mold core with proper size according to a coil drawing, then installing a channel steel stay, and adding a cushion block with proper size under the channel steel stay so as to achieve the inner diameter size required by a coil. The iron mold meets the requirements of different diameters by adjusting the thickness of the adjusting cushion block, and the adjustment of small size and large diameter is to select mold cores with different diameters. The stays of the coil itself are placed in the slots of the channel stay. In general, the mould core is 100mm in size and one gear is used for adjusting the size of the cushion block to be 0.5mm in size so as to meet the requirements of different diameters. The shaft sleeve is used for being matched with a winding machine. For operators who use the operation habit of the iron mold, various inadaptation exists in using the adjustable mold, the production efficiency is seriously influenced, and the popularization and the use of the adjustable mold are influenced. Disclosure of Invention The invention aims to provide an adjustable die structure and a method for winding a transformer coil, which are convenient to operate due to the fact that the requirements of products are met, and particularly the number of adjustable die supporting belts is equal to the number of coil stays of the transformer coil, after the adjustable die is adjusted to a diameter which is suitable for the requirement of the inner diameter of the coil, the coil can be directly wound, the adjustable die simultaneously has the structural advantages of an iron die, the adjustable die is optimized, links such as uniform division, scribing and stay fixing are saved, in addition, the positions of the coil stays are avoided being adjusted in winding, the internal space of various binding in winding of the coil is large, the coil manufacturing efficiency is effectively improved, the labor is saved, the popularization and the use of the adjustable die are facilitated, and the technical problems existing in the prior art are solved. The technical scheme of the invention is as follows: based on the same conception, the invention comprises three technical schemes: The technical scheme is that the adjustable die structure for winding the transformer coil comprises a mandrel, a sliding sleeve mechanism, basic stays, a driving mechanism and supporting rods, wherein a plurality of sets of sliding sleeve mechanisms are uniformly arranged on the mandrel along the axial direction, the driving mechanism is in driving connection with the plurality of sets of sliding sleeve mechanisms, each set of sliding sleeve mechanism is connected with the same basic stay through the supporting rods, the sliding sleeve mechanism, the supporting rods and the basic stays form a supporting band which is arranged along the radial direction of the mandrel, the supporting bands are uniformly distributed on the mandrel and integrally form a cylindrical structure, the cylindrical structure is called an adjustable die, a groove which is arranged longitudinally is formed in the top of the basic stay on the outermost side of the cylindrical structure, coil s