CN210535505U - Winding tool for rectangular spiral parallel copper flat wire winding - Google Patents
Winding tool for rectangular spiral parallel copper flat wire winding Download PDFInfo
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- CN210535505U CN210535505U CN201921383693.1U CN201921383693U CN210535505U CN 210535505 U CN210535505 U CN 210535505U CN 201921383693 U CN201921383693 U CN 201921383693U CN 210535505 U CN210535505 U CN 210535505U
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Abstract
The utility model discloses a coiling frock of the spiral parallelly connected copper flat wire winding of rectangular form has solved how the coiling makes two spiral windings parallelly connected can nestification be in order to satisfy the problem of the technological requirement of parallelly connected coil together. The rectangular winding mold block is not provided with a winding embedded groove, two ends of the rectangular winding mold block are respectively provided with a winding supporting fan-shaped block, the two winding supporting fan-shaped blocks are provided with arc-shaped lead winding embedded grooves, the winding mold is designed into three detachable structures, two groups of winding groups are convenient to demold, and two parallel windings are naturally nested together after being demolded. The utility model discloses a single wire supplies line two parallelly connected two wire winding groups of separation groove coiling on same wire winding mould in gradation, has overcome back coil winding and has climbed the defect to the turning over of preceding coil winding, has realized that the high quality of two parallelly connected windings is nested.
Description
Technical Field
The invention relates to a winding tool of a coil, in particular to a winding tool and a winding method of two spiral windings which need to be connected in parallel and are wound by a copper flat wire.
Background
The winding type permanent magnet coupling speed regulator is an upgrading and updating product of eddy current type permanent magnet coupling transmission and is widely applied to a power plant, an outer rotor winding of the winding type permanent magnet coupling speed regulator is composed of two parallel spiral windings, each spiral winding is formed by winding a copper flat wire, the two wound copper flat wires are required to be nested together to form a nested parallel spiral winding which is used as an outer rotor winding of the winding type permanent magnet coupling speed regulator; for two spiral windings which are nested together, if a method of winding twice is adopted, two coils which are wound twice cannot be nested together for parallel connection; if a method of simultaneously supplying and winding wires by two wire supply tensioning frames on one winding die is adopted, the problem of two wire supply climbing is solved, and the technical problem which needs to be solved on site is how to wind two parallel spiral windings which can be nested together so as to meet the process requirement of parallel coils.
Disclosure of Invention
The invention provides a winding tool and a winding method for a rectangular spiral parallel copper flat wire winding, and solves the technical problem of how to wind two parallel spiral windings which can be nested together to meet the process requirement of parallel coils.
The invention solves the technical problems by the following technical scheme:
the general concept of the invention is: a rectangular winding mold block is arranged, a winding embedding groove is not arranged on the rectangular winding mold block, the two ends of a cuboid winding mould block are respectively provided with a winding support fan-shaped block, the two winding support fan-shaped blocks are provided with arc-shaped wire winding embedded grooves, the arc-shaped wire winding embedded grooves on each winding support fan-shaped block are arranged at equal intervals along the direction from bottom to top, each arc-shaped wire winding embedded groove is arranged on the same horizontal plane, the arc-shaped wire winding embedded grooves arranged on the two winding support fan-shaped blocks are symmetrically arranged, the two corresponding wire winding embedded grooves are positioned on the same horizontal plane, namely, the wound wires are formed in the arc-shaped wire winding embedded grooves on the two winding support fan-shaped blocks and are transited on the front side surface and the rear side surface of the cuboid winding mold block; firstly, winding a lower parallel copper flat wire winding, starting to wind and embed a starting end of a copper flat wire of the lower parallel copper flat wire winding from a first bottommost copper flat wire on a coil short-edge right positioning winding support sector into a right side arc-shaped groove, winding and embedding a lead into a left side arc-shaped groove after winding and embedding a first bottommost copper flat wire on a coil short-edge left positioning winding support sector, enabling the lead to be in inclined upward transition on the front side surface of a rectangular winding mold block, and then enabling the lead to enter a third copper flat wire, counted from bottom to top, on the coil short-edge right positioning winding support sector to wind and embed the right side arc-shaped groove; after the parallel copper flat wire lower winding is finished, cutting off the copper flat wire, fixing a second starting head of the copper flat wire to a second copper flat wire, which is wound and embedded into the right-side arc-shaped groove from bottom to top, on the coil short-side right positioning winding support fan-shaped block, winding and embedding a lead into the left-side arc-shaped groove by winding the second copper flat wire, enabling the lead to be in upward inclined transition on the front side surface of the rectangular winding mold block, then enabling the lead to enter a fourth copper flat wire, which is wound and embedded into the right-side arc-shaped groove from bottom to top, on the coil short-side right positioning winding support fan-shaped block, and finishing the parallel copper flat wire; by the winding method, two groups of windings are sequentially wound on the same winding die without the problem that a back-wound wire needs to climb over a front-wound wire; in addition, the winding die is designed into three detachable structures, so that two groups of winding groups can be conveniently demoulded, because two groups of windings needing to be parallelly nested are wound on the same die in a simulated nesting structure mode, the two groups of windings in parallel are naturally nested together after being demoulded.
A winding tool for a rectangular spiral parallel copper flat wire winding comprises a winding machine driving device and a copper flat wire tensioning pay-off rack, wherein a copper flat wire is wound on the copper flat wire tensioning pay-off rack, a winding die mounting base plate is arranged on a rotating shaft extending upwards of the winding machine driving device, a long coil edge winding support long strip block is fixedly arranged on the winding die mounting base plate and is fixedly connected with the winding die mounting base plate through a long strip block connecting bolt, a short coil edge left positioning winding support fan-shaped block is arranged at the left end of the long coil edge winding support long strip block, copper flat wires are wound and embedded into a left arc-shaped groove at equal intervals on the arc-shaped side surface of the short coil edge left positioning winding support fan-shaped block, a short coil edge right positioning winding support fan-shaped block is arranged at the right end of the long coil edge support long strip block, the copper flat wire winding embedding right side arc-shaped groove is formed in the arc-shaped side face of the coil short side right positioning winding supporting fan-shaped block at equal intervals, the copper flat wire fed from the copper flat wire tensioning pay-off rack sequentially passes through the back side face of the coil long side winding supporting long strip block, the copper flat wire winding embedding left side arc-shaped groove in the coil short side left positioning winding supporting fan-shaped block, the front side face of the coil long side winding supporting long strip block and the copper flat wire winding embedding right side arc-shaped groove in the coil short side right positioning winding supporting fan-shaped block are wound and formed into a spiral coil.
A left top plate is arranged on the top end face of the coil short-edge left positioning winding support fan-shaped block, a left wedge-shaped block insertion U-shaped groove is arranged on the rear side end of the left top plate, a left wedge-shaped block is movably inserted into the left wedge-shaped groove, and the left wedge-shaped block is arranged on the rear side end face of a copper flat wire which is wound and embedded into the copper flat wire winding and embedded into the left arc-shaped groove; the right top plate is arranged on the top end face of the coil short edge right positioning winding support fan-shaped block, the front side end of the right top plate is provided with a right wedge-shaped block insertion U-shaped groove, the right wedge-shaped block is movably inserted into the U-shaped groove, and the right wedge-shaped block is arranged on the front side end face of a copper flat wire wound and embedded into the copper flat wire winding and embedding right side arc-shaped groove.
The structure of the coil short edge left positioning winding support sector is the same as that of the coil short edge right positioning winding support sector; the coil short edge left positioning winding support sector block is formed by alternately stacking lamination sheets and transition sheets and connecting the lamination sheets together in a penetrating manner through a compression bolt, the transition sheet is arranged between the upper lamination sheet and the lower lamination sheet, and a copper flat wire is arranged between the upper lamination sheet and the lower lamination sheet outside the arc-shaped edge of the transition sheet and is wound and embedded into the left arc-shaped groove.
A winding method of a rectangular spiral parallel copper flat wire winding comprises the following steps:
the method comprises the following steps that firstly, a long coil edge winding support strip block is fixedly arranged on a winding die mounting bottom plate, a short coil edge left positioning winding support fan-shaped block is arranged at the left end of the long coil edge winding support strip block, copper flat wires are arranged on the arc-shaped side face of the short coil edge left positioning winding support fan-shaped block at equal intervals and are wound and embedded into a left arc-shaped groove, a short coil edge right positioning winding support fan-shaped block is arranged at the right end of the long coil edge winding support strip block, and copper flat wires are arranged on the arc-shaped side face of the short coil edge right positioning winding support fan-shaped block at equal intervals and are wound and embedded into a right arc;
secondly, fixing the end of a copper flat wire sent from a copper flat wire tensioning pay-off rack on the bottom of the rear side of a coil short-side right positioning winding support sector, winding and embedding the copper flat wire into a right side arc groove, winding the copper flat wire along the long side of the coil to support the rear side of the long block, winding the copper flat wire from right to left along the horizontal direction, enabling the copper flat wire to enter the bottom first copper flat wire winding and embedding on the coil short-side left positioning winding support sector into a left side arc groove, winding the copper flat wire out of the first copper flat wire winding and embedding in the left side arc groove, winding the copper flat wire along the long side of the coil to support the front side of the long block, winding the copper flat wire from left to right along the upward inclined direction, enabling the copper flat wire to enter a third copper flat wire winding and embedding from bottom to top on the coil short-side right positioning winding support sector, winding the copper flat wire out of the third copper flat wire winding and embedding in the right side arc groove, the back side of the support long block is wound along the long edge of the coil and wound from right to left in the horizontal direction, a third copper flat wire which is from bottom to top and enters the left positioning winding support fan-shaped block of the short edge of the coil is wound and embedded into the arc-shaped groove at the left side, the copper flat wire is wound and embedded into the arc-shaped groove at the left side from the third copper flat wire, and then is wound from left to right in the inclined upward direction along the front side of the long edge winding support long block of the coil and enters the fifth copper flat wire which is from bottom to top and enters the right positioning winding support fan-shaped block of the short edge of the coil, and the copper flat wire is wound and embedded into the arc-shaped groove at the right side according to the method, so that;
thirdly, fixing the end of the cut copper flat wire on the rear side of the coil short side right positioning winding support sector from bottom to top to wind and embed the second copper flat wire into the right side arc groove, winding the copper flat wire along the long side of the coil to the rear side of the support long block, winding the copper flat wire from right to left along the horizontal direction, enabling the copper flat wire to enter the second copper flat wire from bottom to top on the coil short side left positioning winding support sector to wind and embed the second copper flat wire into the left side arc groove, winding the copper flat wire from the second copper flat wire to wind and embed the front side of the copper flat wire along the long side of the coil long side winding support long block from left to right along the upward inclined direction, enabling the copper flat wire to enter the fourth copper flat wire from bottom to top on the coil short side right positioning support sector to wind and embed the left side arc groove, and winding the copper flat wire from the fourth copper flat wire into the left side arc groove, the back side of the support long block is wound along the long edge of the coil and wound from right to left in the horizontal direction, a fourth copper flat wire which is counted from bottom to top and is wound and embedded into the left arc-shaped groove on the left positioning winding support fan-shaped block of the short edge of the coil enters the left positioning winding support fan-shaped block of the coil, the copper flat wire is wound and embedded into the left arc-shaped groove from the fourth copper flat wire, and then is wound from left to right in the inclined upward direction along the front side of the support long block of the long edge winding support of the coil and enters the sixth copper flat wire which is counted from bottom to top and is wound and embedded into the right arc-shaped groove on the right positioning winding support fan-shaped block of the short edge of the coil, and the winding;
and fourthly, firstly removing the long-edge winding support long block of the coil, moving the coil short-edge left positioning winding support sector to the right, moving the coil short-edge right positioning winding support sector to the left, separating the two sectors from the wound winding, taking out the finished upper winding and the finished lower winding of the parallel copper flat wire, and arranging the upper winding and the lower winding in parallel and wrapping insulating cloth.
The invention adopts a single lead to supply a wire to wind two parallel winding groups on the same winding die in a way of separating slots in turn, overcomes the defect of climbing of a rear winding coil to a front winding coil, realizes high-quality nesting of two parallel windings, and completes the winding of high-difficulty parallel windings by utilizing the traditional winding equipment.
Drawings
FIG. 1 is a schematic structural diagram of the parallel copper flat wire lower winding in the front view direction;
FIG. 2 is a schematic diagram of the structure of the invention in the rear view direction when winding the lower winding of the parallel copper flat wire;
fig. 3 is a schematic structural view of the winding die of the present invention in a top view.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
a winding tool for a rectangular spiral parallel copper flat wire winding comprises a winding machine driving device 1 and a copper flat wire tensioning pay-off rack 6, wherein a copper flat wire 7 is wound on the copper flat wire tensioning pay-off rack 6, a winding die mounting base plate 2 is arranged on a rotating shaft extending upwards of the winding machine driving device 1, a long-edge winding support long strip block 3 of a coil is fixedly arranged on the winding die mounting base plate 2, the long-edge winding support long strip block 3 of the coil is fixedly connected with the winding die mounting base plate 2 through a long strip block connecting bolt 8, after the long strip block connecting bolt 8 is removed, the long-edge winding support long strip block 3 of the coil can be removed from the winding die mounting base plate 2, a left short-edge left positioning winding support fan-shaped block 4 of the long-edge winding support long strip block 3 of the coil is arranged at the left end of the long-edge winding support long strip block 3 of the coil, and a left arc-side groove 9 for winding and embedding the copper flat wire is arranged on the arc-shaped, the copper flat wires are wound and embedded into the left arc-shaped grooves 9 and are arranged in parallel to form a group, the right end of the long-edge winding support long block 3 of the coil is provided with a right positioning winding support fan-shaped block 5 of the short edge of the coil, copper flat wire winding embedding right side arc-shaped grooves 10 are arranged on the arc-shaped side face of the coil short side right positioning winding supporting fan-shaped block 5 at equal intervals, the copper flat wire winding embedding right side arc-shaped grooves 10 are arranged in parallel to form a group, copper flat wires 7 sent from a copper flat wire tensioning pay-off rack 6 sequentially pass through the back side face of the coil long side winding supporting long strip block 3, the copper flat wire winding embedding left side arc-shaped grooves 9 on the coil short side left positioning winding supporting fan-shaped block 4, the front side face of the coil long side winding supporting long strip block 3 and the copper flat wire winding embedding right side arc-shaped grooves 10 on the coil short side right positioning winding supporting fan-shaped block 5, and the winding forming is a spiral coil.
A left top plate 11 is arranged on the top end face of the coil short-side left positioning winding support sector 4, a left wedge-shaped block insertion U-shaped groove 12 is arranged on the rear side end of the left top plate 11, a left wedge-shaped block 13 is movably inserted into the left wedge-shaped block insertion U-shaped groove 12, and the left wedge-shaped block 13 is arranged on the rear side end face of a copper flat wire 7 which is wound and embedded in the copper flat wire winding and embedding left side arc-shaped groove 9; a right top plate 14 is arranged on the top end face of the coil short-side right positioning winding support sector 5, a right wedge-shaped block insertion U-shaped groove 15 is arranged on the front side end of the right top plate 14, a right wedge-shaped block 16 is movably inserted into the right wedge-shaped block insertion U-shaped groove 15, and the right wedge-shaped block 16 is arranged on the front side end face of a copper flat wire 7 which is wound and embedded into the copper flat wire winding and embedding right arc-shaped groove 10; the two wedge-shaped blocks are mainly used for ensuring that each turn of coil is attached to the die at the arc-shaped turning position, and preventing the coil from rebounding.
The structure of the coil short side left positioning winding support sector 4 is the same as the structure of the coil short side right positioning winding support sector 5; the coil short-side left positioning winding support sector 4 is formed by alternately stacking lamination sheets and transition sheets and is formed by connecting crimping bolts 20 in a penetrating manner, a transition sheet 17 is arranged between an upper lamination sheet 19 and a lower lamination sheet 18, and a copper flat wire is arranged between the upper lamination sheet 19 and the lower lamination sheet 18 outside the arc-shaped edge of the transition sheet 17 and is wound and embedded into a left side arc-shaped groove 9; the two fan-shaped blocks are designed to be laminated by using the lamination sheets, so that the coil inserting groove is better realized and processed, the wire inserting groove can be formed by inwards retracting the transition sheet between two adjacent lamination sheets, and the laminated fan-shaped blocks are convenient to disassemble and demold the wound coil.
A winding method of a rectangular spiral parallel copper flat wire winding comprises the following steps:
the method comprises the following steps that firstly, a long coil edge winding support long strip block 3 is fixedly arranged on a winding die mounting bottom plate 2, a short coil edge left positioning winding support sector block 4 is arranged at the left end of the long coil edge winding support long strip block 3, copper flat wires are arranged on the arc-shaped side face of the short coil edge left positioning winding support sector block 4 at equal intervals and are wound and embedded into a left arc-shaped groove 9, a short coil edge right positioning winding support sector block 5 is arranged at the right end of the long coil edge winding support long strip block 3, and copper flat wires are arranged on the arc-shaped side face of the short coil edge right positioning winding support sector block 5 at equal intervals and are wound and embedded into a right arc-shaped groove 10;
secondly, fixing the end of a copper flat wire 7 sent from a copper flat wire tensioning pay-off rack 6 on the bottom of the rear side of a coil short-side right positioning winding support sector 5 to be wound and embedded into a right side arc-shaped groove 10, winding the copper flat wire 7 along the long side of the coil to support the rear side of the long strip 3, winding the copper flat wire 7 from right to left along the horizontal direction, enabling the copper flat wire 7 to enter the first copper flat wire at the bottom of the coil short-side left positioning winding support sector 4 to be wound and embedded into a left side arc-shaped groove 9, winding the copper flat wire 7 out of the first copper flat wire to be wound and embedded into the left side arc-shaped groove 9, winding the copper flat wire 7 along the long side of the coil to support the front side of the long strip 3, winding the copper flat wire from left to right along the upward inclined direction, enabling the copper flat wire 7 to enter a third copper flat wire from bottom to top on the coil short-side right positioning winding support sector 5 to be, after the copper flat wire 7 is wound and embedded into the right side arc-shaped groove 10 from the third copper flat wire, the back side surface of the support long strip 3 is wound and embedded into the left side arc-shaped groove 9 from bottom to top along the long edge of the coil, and is wound from right to left along the horizontal direction, and enters the third copper flat wire wound and embedded into the left side arc-shaped groove 9 from bottom to top on the left positioning winding support sector 4 of the short edge of the coil, an inclined lead-in surface can be arranged at the notch of the third copper flat wire wound and embedded into the left side arc-shaped groove 9 to protect the insulation of the copper flat wire from being damaged, after the copper flat wire 7 is wound and embedded into the left side arc-shaped groove 9 from the third copper flat wire, the front side surface of the long edge winding support long strip 3 along the coil is wound from left to right along the inclined upward direction, enters the fifth copper flat wire wound and embedded into the right side arc-shaped groove 10 from bottom, completing the winding of the lower winding of the parallel copper flat wire, and cutting off the copper flat wire 7;
thirdly, fixing the end of the cut copper flat wire 7 on the rear side of the coil short side right positioning winding support sector 5 from bottom to top to wind and embed the second copper flat wire into the right side arc-shaped groove 10, winding the copper flat wire 7 along the coil long side to support the rear side of the long strip block 3, winding the copper flat wire 7 along the horizontal direction from right to left, enabling the copper flat wire 7 to enter the second copper flat wire from bottom to top on the coil short side left positioning winding support sector 4 to wind and embed the second copper flat wire into the left side arc-shaped groove 9, winding the copper flat wire 7 out of the second copper flat wire to wind and embed the second copper flat wire into the left side arc-shaped groove 9, winding the front side of the copper flat wire 7 along the coil long side to wind and support the long strip block 3 along the coil short side from top to right in the upward inclined direction, enabling the copper flat wire 7 to enter the fourth copper flat wire from bottom to top on the coil short side right positioning winding, after the copper flat wire 7 is wound and embedded into the left arc-shaped groove 10 from the fourth copper flat wire, the back side surface of the support long bar 3 is wound and embedded into the left arc-shaped groove 9 from the bottom to the top along the long side of the coil, the copper flat wire 7 is wound and embedded into the left arc-shaped groove 9 from the fourth copper flat wire, the front side surface of the support long bar 3 is wound and embedded into the right arc-shaped groove 10 from the bottom to the top along the long side of the coil after the copper flat wire 7 is wound and embedded into the left arc-shaped groove 9 from the fourth copper flat wire, the front side surface of the support long bar 3 is wound and embedded into the right arc-shaped groove 10 from the top along the long side of the coil, the winding on the parallel copper flat wires is completed according to the winding method, and the copper flat wire 7 is cut off;
and fourthly, firstly removing the long-edge winding support long block 3 of the coil, moving the coil short-edge left positioning winding support sector 4 to the right, moving the coil short-edge right positioning winding support sector 5 to the left, separating the two sectors from the wound winding, taking out the finished upper winding and the finished lower winding of the parallel copper flat wire, and arranging the upper winding and the lower winding in parallel and wrapping insulating cloth.
Claims (3)
1. A winding tool for a rectangular spiral parallel copper flat wire winding comprises a winding machine driving device (1) and a copper flat wire tensioning pay-off rack (6), wherein a copper flat wire (7) is wound on the copper flat wire tensioning pay-off rack (6), a winding mold mounting bottom plate (2) is arranged on a rotating shaft extending upwards of the winding machine driving device (1), and the winding tool is characterized in that a coil long-edge winding support long strip block (3) is fixedly arranged on the winding mold mounting bottom plate (2), the coil long-edge winding support long strip block (3) is fixedly connected with the winding mold mounting bottom plate (2) through a strip block connecting bolt (8), a coil short-edge left positioning winding support fan-shaped block (4) is arranged at the left end of the coil long-edge winding support long strip block (3), copper flat wires are wound and embedded into a left side arc-shaped groove (9) at equal intervals on an arc-shaped side surface of the coil short-edge left positioning winding support fan-shaped block (4), the right end of the long-edge winding support long bar block (3) of the coil is provided with a short-edge right positioning winding support sector block (5), the arc-shaped side face of the short-edge right positioning winding support sector block (5) of the coil is provided with a copper flat wire winding embedding right side arc-shaped groove (10) at equal intervals, a copper flat wire (7) sent from a copper flat wire tensioning pay-off rack (6) sequentially passes through the rear side face of the long-edge winding support long bar block (3) of the coil, the copper flat wire winding embedding left side arc-shaped groove (9) on the short-edge left positioning winding support sector block (4) of the coil, the front side face of the long-edge winding support long bar block (3) of the coil and the copper flat wire winding embedding right side arc-shaped groove (10) on the short-edge right positioning winding support sector block (5).
2. The winding tool of the rectangular spiral parallel copper flat wire winding according to claim 1, characterized in that a left top plate (11) is arranged on the top end face of a coil short-side left positioning winding support sector (4), a left wedge-shaped block insertion U-shaped groove (12) is arranged on the rear side end of the left top plate (11), a left wedge-shaped block (13) is movably inserted into the left wedge-shaped groove (12), and the left wedge-shaped block (13) is arranged on the rear side end face of a copper flat wire (7) which is wound and embedded into a left arc-shaped groove (9); a right top plate (14) is arranged on the top end face of the coil short-side right positioning winding support fan-shaped block (5), a right wedge-shaped block insertion U-shaped groove (15) is arranged on the front side end of the right top plate (14), a right wedge-shaped block (16) is movably inserted into the right wedge-shaped block insertion U-shaped groove (15), and the right wedge-shaped block (16) is arranged on the front side end face of a copper flat wire (7) which is wound and embedded into the copper flat wire winding and embedding right side arc-shaped groove (10).
3. The winding tool of the rectangular spiral parallel copper flat wire winding according to claim 2, wherein the structure of the coil short side left positioning winding support segment (4) is the same as the structure of the coil short side right positioning winding support segment (5); the coil short-side left positioning winding support sector (4) is formed by alternately stacking lamination sheets and transition sheets and is formed by connecting crimping bolts (20) in a penetrating manner, the transition sheet (17) is arranged between an upper lamination sheet (19) and a lower lamination sheet (18), and a copper flat wire is arranged between the upper lamination sheet (19) outside an arc-shaped edge of the transition sheet (17) and the lower lamination sheet (18) and is wound and embedded into an arc-shaped groove (9) on the left side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921383693.1U CN210535505U (en) | 2019-08-24 | 2019-08-24 | Winding tool for rectangular spiral parallel copper flat wire winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921383693.1U CN210535505U (en) | 2019-08-24 | 2019-08-24 | Winding tool for rectangular spiral parallel copper flat wire winding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210535505U true CN210535505U (en) | 2020-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921383693.1U Active CN210535505U (en) | 2019-08-24 | 2019-08-24 | Winding tool for rectangular spiral parallel copper flat wire winding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210535505U (en) |
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2019
- 2019-08-24 CN CN201921383693.1U patent/CN210535505U/en active Active
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