CN216902536U

CN216902536U - Coil winding jig

Info

Publication number: CN216902536U
Application number: CN202220040912.1U
Authority: CN
Inventors: 孟德鹏; 张越盛; 李洋; 范宇航
Original assignee: Sunway Communication Jiangsu Co Ltd
Current assignee: Sunway Communication Jiangsu Co Ltd
Priority date: 2022-01-07
Filing date: 2022-01-07
Publication date: 2022-07-05
Anticipated expiration: 2032-01-07

Abstract

The utility model discloses a coil winding jig which comprises an upper die and a lower die which are matched with each other, wherein the lower die comprises a first movable die core, a fixed die core sleeved on the peripheral wall of the first movable die core and a second movable die core sleeved on the peripheral wall of the fixed die core, the upper die, the first movable die core and the second movable die core can respectively move relative to the fixed die core along the axial direction of the fixed die core, one surface, close to the upper die, of the second movable die core is provided with a forming part, one surface, close to the upper die, of the first movable die core is provided with a first wire groove, one surface, close to the upper die, of the forming part is provided with a second wire groove matched with the first wire groove, one surface, close to the upper die, of the first movable die core is also provided with a third wire groove, and the third wire groove and the first wire groove are arranged at intervals. The coil winding tool can satisfy the user demand of production NFC coil and production charging coil, and the commonality is good, and required coiling machine quantity and required manual work of purchasing when having reduced products such as cell-phones production do benefit to reduction in production cost to the production process flow of NFC coil and charging coil has been simplified.

Description

Coil winding jig

Technical Field

The utility model relates to the technical field of coil preparation, in particular to a coil winding jig.

Background

With the development of communication technology, the functions of mobile terminals such as mobile phones are diversified, the existing mobile phones generally have an NFC function and a wireless charging function, and an NFC module and a wireless charging module in the mobile phone have coils of different types, so that the coils of corresponding types need to be wound and assembled into the mobile phone in the production process of the mobile phone.

As shown in fig. 1, at present, generally adopt coiling machine coiling NFC coil 1 and charging coil 2 to the coiling machine needs install corresponding kind of wire winding tool on the coiling machine when coiling NFC coil 1 or charging coil 2, so installation NFC coil 1 and charging coil 2 are by many coiling machines coiling respectively in the same money cell-phone product, and then need purchase many coiling machines and prepare corresponding wire winding tool, also need arrange corresponding manual operation coiling machine simultaneously, the process flow is longer and with high costs.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the winding jig can reduce the production cost of the coil.

In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a coil winding tool, includes matched with and goes up mould and lower mould, the lower mould includes first movable mould benevolence, overlaps establishes the cover and establishes in the cover mould benevolence and the cover on the first movable mould benevolence periphery wall second movable mould benevolence on the cover mould benevolence periphery wall, go up the mould first movable mould benevolence reaches second movable mould benevolence can for the cover mould benevolence is followed the axial displacement of cover mould benevolence, second movable mould benevolence is close to the one side of going up the mould is equipped with shaping portion, first movable mould benevolence is close to the one side of going up the mould is equipped with first wire casing, shaping portion is close to the one side of going up the mould be equipped with first wire casing complex second wire casing, first movable mould benevolence is close to the one side of going up the mould still is equipped with third wire casing, the third wire casing with first wire casing interval sets up.

Furthermore, the depth of the first wire groove is consistent with that of the second wire groove.

Furthermore, the shaping portion is the annular just the shaping portion with the periphery wall laminating of decide mould benevolence, the degree of depth of second wire casing is less than or equal to the height of shaping portion.

Furthermore, the depth of the third wire groove is larger than that of the first wire groove.

Further, one end of the third wire groove is provided with a round angle.

Further, go up the mould with still be equipped with the carrier film between the lower mould, the carrier film is close to the one side of lower mould has the stickness just the carrier film is in the driving down of last mould compresses tightly on the lower mould.

Furthermore, the die further comprises a first driving piece, and the output end of the first driving piece is matched with the first movable die core.

Furthermore, the die further comprises a second driving piece, a connecting block is arranged on the peripheral wall of the second movable die core, and the output end of the second driving piece is matched with the connecting block.

Furthermore, the device also comprises a third driving piece, and the output end of the third driving piece is matched with the upper die.

The utility model has the beneficial effects that: the coil winding jig comprises an upper die and a lower die which are matched, wherein the lower die comprises a first movable die core, a fixed die core and a second movable die core, the first movable die core and the second movable die core are respectively movable relative to the fixed die core along the axial direction of the fixed die core, a first wire groove and a third wire groove are arranged on one side of the first movable die core close to the upper die at intervals, a forming part is arranged on one side of the second movable die core close to the upper die and is provided with a second wire groove aligned with the first wire groove, the shape of the coil winding jig can be adjusted through the action of the first movable die core and the second movable die core relative to the fixed die core, so that an NFC coil and a charging coil can be respectively wound on the coil winding jig, when one side of the first movable die core close to the upper die is flush with one side of the second movable die core close to the upper die, the wire material for winding the coil can sequentially pass through the second wire groove and is wound on the forming part, and the NFC coil can be formed on the coil winding jig at the moment, when the one side that first movable mould benevolence is close to the mould staggers with the one side that second movable mould benevolence is close to the mould, the wire rod of coiling coil can pass the third wire casing and twine on first movable mould benevolence, can go up shaping charging coil at coil winding tool this moment, need not to change after coil winding tool installs to the coiling machine and can satisfy the user demand of producing the NFC coil and producing the charging coil, the commonality is good, required coiling machine quantity and the required manual work of purchasing when having reduced product production such as cell-phone, do benefit to reduction in production cost, and the production process flow of NFC coil and charging coil has been simplified.

Drawings

Fig. 1 is a schematic structural diagram of an NFC coil and a charging coil in the prior art;

fig. 2 is a schematic structural diagram of a coil winding jig according to a first embodiment of the utility model;

fig. 3 is an exploded view of a coil winding jig according to a first embodiment of the present invention;

fig. 4 is a schematic structural diagram of a first core in a coil winding jig according to a first embodiment of the utility model;

fig. 5 is a schematic structural diagram of a second movable mold core in the coil winding jig according to the first embodiment of the utility model;

fig. 6 is a side view of a coil winding jig according to a first embodiment of the present invention when winding an NFC coil;

fig. 7 is a schematic partial structural diagram of a coil winding jig according to a first embodiment of the present invention when an NFC coil is wound;

fig. 8 is a cross-sectional view of a part of a structure of a coil winding jig according to a first embodiment of the present invention when NFC is wound;

fig. 9 is a side view of a charging coil wound by the coil winding jig according to the first embodiment of the utility model;

fig. 10 is a schematic partial structural view illustrating a charging coil wound by the coil winding jig according to the first embodiment of the present invention;

fig. 11 is a cross-sectional view of a part of a charging coil wound by the coil winding jig according to the first embodiment of the utility model.

Description of reference numerals:

1. an NFC coil; 2. a charging coil; 3. an upper die; 4. a lower die; 41. a first movable mold core; 42. fixing a mold core; 43. a second movable mould core; 44. a molding section; 45. a first wire slot; 46. a second wire slot; 47. a third wire slot; 48. round corners; 49. connecting blocks; 5. a carrier film; 6. a first driving member; 7. a second driving member.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 11, a coil winding jig includes an upper mold 3 and a lower mold 4 which are matched with each other, the lower mold 4 comprises a first movable mold core 41, a fixed mold core 42 sleeved on the peripheral wall of the first movable mold core 41, and a second movable mold core 43 sleeved on the peripheral wall of the fixed mold core 42, the upper die 3, the first movable die core 41 and the second movable die core 43 can respectively move along the axial direction of the fixed die core 42 relative to the fixed die core 42, a molding part 44 is arranged on one surface of the second movable mold core 43 close to the upper mold 3, a first linear groove 45 is arranged on one surface of the first movable mold core 41 close to the upper mold 3, one surface of the forming part 44 close to the upper die 3 is provided with a second wire groove 46 matched with the first wire groove 45, a third wire groove 47 is further formed in one surface, close to the upper die 3, of the first movable die core 41, and the third wire groove 47 and the first wire groove 45 are arranged at intervals.

From the above description, the beneficial effects of the present invention are: the coil winding jig provided by the utility model can meet the use requirements of producing the NFC coil 1 and the charging coil 2 without replacement after being installed on a winding machine, has good universality, reduces the number of winding machines and labor required when products such as mobile phones and the like are produced, is beneficial to reducing the production cost, and simplifies the production process flows of the NFC coil 1 and the charging coil 2.

Further, the first wire groove 45 and the second wire groove 46 have the same depth.

As can be seen from the above description, the depths of the first wire groove 45 and the second wire groove 46 are set to be the same, so that when the surface of the first movable mold core 41 close to the upper mold 3 is flush with the surface of the second movable mold core 43 close to the upper mold 3, the first wire groove 45 is aligned with the second wire groove 46, and the unevenness of the wound NFC coil 1 is prevented.

Further, the forming portion 44 is annular, the forming portion 44 is attached to the outer peripheral wall of the core insert 42, and the depth of the second line groove 46 is smaller than or equal to the height of the forming portion 44.

As can be seen from the above description, the forming portion 44 is in a ring shape attached to the outer peripheral wall of the core 42 to ensure that the obtained NFC coil 1 is in a complete ring shape, and the depth of the first slot 45 is set to be less than or equal to the height of the forming portion 44 to avoid the deviation in the winding process.

Further, the depth of the third wire groove 47 is greater than the depth of the first wire groove 45.

As can be seen from the above description, the depth of the third wire groove 47 is set to be greater than the depth of the first wire groove 45, so as to prevent the winding from deforming due to the winding wire abutting against the edge of the first wire groove 45 when the charging coil 2 is wound on the first moving mold core 41.

Further, one end of the third wire groove 47 has a rounded corner 48.

As can be seen from the above description, the rounded corner 48 is disposed at one end of the third wire slot 47 to guide the winding to be wound on the first movable mold core 41, so as to avoid the poor quality of the obtained charging coil 2 caused by damage in the winding process.

Further, go up mould 3 with still be equipped with carrier film 5 between the lower mould 4, carrier film 5 is close to the one side of lower mould 4 has the stickness just carrier film 5 is in go up mould 3 drive down compress tightly on lower mould 4.

As can be seen from the above description, the coil finished by winding can be adhered to the carrier film 5 by pressing the carrier film 5 onto the lower die 4 through the upper die 3, and the coil finished by winding can be conveniently taken out from the lower die 4.

Further, the die further comprises a first driving piece 6, and an output end of the first driving piece 6 is matched with the first movable die core 41.

As can be seen from the above description, the configuration of the coil winding jig can be adjusted by arranging the first driving member 6 to drive the first moving die core 41 to move relative to the core block 42, so as to automatically adjust the configuration of the coil winding jig.

Further, still include second driving piece 7, be equipped with connecting block 49 on the periphery wall of second movable mould benevolence 43, the output of second driving piece 7 with connecting block 49 cooperation.

As can be seen from the above description, the second driving member 7 and the second movable mold core 43 are matched through the connecting block 49 disposed on the outer peripheral wall of the second movable mold core 43, so that the second movable mold core 43 can move smoothly under the driving of the second driving member 7.

Further, the device also comprises a third driving piece, and the output end of the third driving piece is matched with the upper die 3.

As can be seen from the above description, the third driving element is arranged to drive the upper die 3 to move so that the upper die 3 is close to or away from the lower die 4, so as to achieve the automatic closing and opening of the coil winding jig.

Example one

Referring to fig. 1 to 11, a first embodiment of the present invention is: a coil winding jig is installed on a winding machine and used for winding an NFC coil 1 and a charging coil 2.

As shown in fig. 1 to 3, the coil winding jig includes an upper die 3 and a lower die 4 which are matched with each other, the lower die 4 includes a first movable die core 41, a fixed die core 42 which is arranged on the peripheral wall of the first movable die core 41 and a second movable die core 43 which is arranged on the peripheral wall of the fixed die core 42, wherein the fixed die core 42 is fixed on the winding machine, the first movable die core 41 and the second movable die core 43 are respectively capable of moving along the axial direction of the fixed die core 42 relative to the fixed die core 42, a forming portion 44 is arranged on the side of the second movable die core 43 close to the upper die 3, a first wire slot 45 for forming the NFC coil 1 is arranged on the side of the first movable die core 41 close to the upper die 3, a second wire slot 46 for forming the NFC coil 1 is arranged on the side of the forming portion 44, the second wire slot 46 is matched with the first wire slot 45, and a third wire slot for forming the charging coil 2 is arranged on the side of the first movable die core 41 close to the upper die 3 A wire groove 47, and the third wire groove 47 and the first wire groove 45 are arranged at an interval on the first movable mold core 41.

Referring to fig. 4 and 5, the shape of the coil winding jig can be changed by the movement of the first movable mold core 41 and the second movable mold core 43 relative to the cavity 42, so that the coil winding jig can meet the production requirements of the NFC coil 1 and the charging coil 2, respectively. When one surface of the first movable die core 41 close to the upper die 3 is flush with one surface of the second movable die core 43 close to the upper die 3, a winding for winding the NFC coil 1 can sequentially pass through the second wire groove 46 and the first wire groove 45 and be wound on the outer peripheral wall of the forming part 44, and the winding is wound on the forming part 44 for a plurality of turns to obtain the NFC coil 1; when first movable mould benevolence 41 is close to go up the one side of mould 3 with second movable mould benevolence 43 is close to when going up the one side stagger of mould 3, the wire winding that is used for coiling charging coil 2 can pass third thread groove 47 and winding is in on the periphery wall of first movable mould benevolence 41, be in the wire winding a plurality of circles can obtain charging coil 2 on first movable mould benevolence 41. And then will only need to adjust after coil wire winding tool installs on the coiling machine first movable mould benevolence 41 and the position of second stationary mould benevolence 42 can satisfy the production demand of NFC coil 1 and charging coil 2, need not to change different types of wire winding tool, has reduced the quantity and the required manual work of the coiling machine that need purchase, does benefit to reduction in production cost to the production process flow of NFC coil 1 and charging coil 2 has been simplified.

In detail, go up mould 3 with still be equipped with carrier film 5 between the lower mould 4, carrier film 5 is close to the one side of lower mould 4 has the stickness just go up mould 3 to being close to can during the direction of lower mould 4 removes carrier film 5 compresses tightly on the lower mould 4, and then make carrier film 5 bonds together with NFC coil 1 or the charging coil 2 that the coiling was accomplished, then will carrier film 5 with the separation of lower mould 4 can be convenient with NFC coil 1 or the charging coil 2 that the coiling was accomplished on the lower mould 4 takes off.

Referring to fig. 6 and 8, when the coil winding jig is used to wind an NFC coil 1, the first movable mold core 41 and the second movable mold core 43 are respectively moved relative to the fixed mold core 42 to a position where the first movable mold core 41 is close to the upper mold 3 and a position where the second movable mold core 43 is close to the upper mold 3 are flush, at this time, the first wire slot 45 is aligned with the second wire slot 46, a winding for winding the NFC coil 1 sequentially passes through the second wire slot 46 and the first wire slot 45 to extend one end of the winding into the coil winding jig, then the upper mold 3 is moved to close the upper mold 3 and the lower mold 4 to fix one end of the winding in the winding, the coil winding jig or the winding is rotated to wind the winding on the outer peripheral wall of the forming portion 44 for a plurality of turns to form the NFC coil 1, and after the NFC coil 1 is formed, the upper mold 3 is moved away from the lower mold 4 and the carrier film 5 is moved to the upper mold 3 and the lower mold 4 And then the upper die 3 presses the carrier film 5 on the lower die 4 to bond the carrier film 5 with the NFC coil 1, and then the upper die 3 is controlled to be away from the lower die 4 and the carrier film 5 together with the NFC coil 1 is taken down.

In this embodiment, the forming portion 44 is annular and the forming portion 44 is attached to the outer peripheral wall of the core insert 42, so that the winding on the forming portion 44 is annular and concentric with the forming portion 44, the first line groove 45 is identical to the second line groove 46 in depth, and the second line groove 46 is smaller than or equal to the height of the forming portion 44, so that the first movable mold insert 41 is close to one side of the upper mold 3 and the second movable mold insert 43 is close to the same side of the upper mold 3, the first line groove 45 is aligned with the second line groove 46, and it is ensured that one end of the winding smoothly extends into the coil winding jig and prevents the unevenness of the NFC coil 1 to be wound.

As shown in fig. 9 to 11, when the coil winding jig is used to wind a charging coil 2, the first movable mold core 41 and the second movable mold core 43 respectively move relative to the fixed mold core 42 to a position where the first movable mold core 41 is close to the upper mold 3 and a position where the second movable mold core 43 is close to the upper mold 3 are staggered, at this time, the bottom surface of the third wire groove 47 is flush with a position where the fixed mold core 42 is close to the upper mold 3, one end of the charging coil 2 to be wound extends into the third wire groove 47, then the upper mold 3 is moved to close the upper mold 3 and the lower mold 4 to fix one end of the winding, then the coil winding jig or the winding is rotated to wind a plurality of turns around the peripheral wall of the first movable mold core 41 to form the charging coil 2, after the charging coil 2 is formed, the upper mold 3 moves in a direction away from the lower mold 4 and moves the bearing film 5 to a position between the upper mold 3 and the lower mold 4, and then the upper die 3 compresses the bearing film 5 on the lower die 4 to bond the bearing film 5 with the charging coil 2, and then the upper die 3 is controlled to be away from the lower die 4 and the bearing film 5 and the charging coil 2 are taken down.

Specifically, the degree of depth of third wire casing 47 is greater than the degree of depth of first wire casing 45 to avoid winding when coiling charging coil 2 on the periphery wall of first movable mould benevolence 41 with the edge of first wire casing 45 supports holds and leads to the wire winding to warp, just third wire casing 47 supplies the one end that the wire winding stretched into to have fillet 48, through setting up fillet 48 guide wire winding is in on the periphery wall of first movable mould benevolence 41 to the impaired charging coil 2 quality that leads to producing when preventing the wire winding to buckle is not good.

As shown in fig. 2, the coil winding jig further includes a first driving member 6, a second driving member 7 and a third driving member, wherein an output end of the first driving member 6 is matched with the first movable mold core 41 to drive the first movable mold core 41 to move relative to the fixed mold core 42, a connecting block 49 is disposed on an outer peripheral wall of the second movable mold core 43, an output end of the second driving member 7 is matched with the connecting block 49, the second movable mold core 43 can move relative to the fixed mold core 42 under the driving of the second driving member 7, and the first driving member 6 and the second driving member 7 respectively move to automatically adjust the shape of the coil winding jig. The output of third driving piece with go up mould 3 cooperation, make it can be in to go up mould 3 be close to or keep away from under the driving about of third driving piece lower mould 4 to realize coil wire winding tool's automatic closure and opening, the manual operation of being convenient for coil wire winding tool accomplishes the production of NFC coil 1 or charging coil 2.

In summary, the lower die of the coil winding jig provided by the utility model adopts the fixed die core and the first movable die core and the second movable die core which are movable relative to the die core, the shape of the coil winding jig can be changed through the actions of the first movable die core and the second movable die core, so that the coil winding jig can be used for respectively winding the NFC coil and the charging coil, the universality is good, the production of the NFC coil and the charging coil can be respectively carried out without replacing the coil winding jig after the coil winding jig is installed on the winding machine, the equipment cost for purchasing the winding machine and the labor cost for operating the corresponding number of the winding machine are effectively saved, the step of replacing the coil winding jig on the winding machine is omitted, the production process flow of the coil is shortened, and the production efficiency is favorably improved.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a coil winding tool which characterized in that: including matched with last mould and lower mould, the lower mould includes first movable mould benevolence, overlaps establishes the cover and establishes in the cover mould benevolence and the cover on the first movable mould benevolence periphery wall second movable mould benevolence on the cover mould benevolence periphery wall, go up the mould first movable mould benevolence reaches second movable mould benevolence can be for the cover mould benevolence is followed the axial displacement of cover mould benevolence, second movable mould benevolence is close to the one side of going up the mould is equipped with shaping portion, first movable mould benevolence is close to the one side of going up the mould is equipped with first wire casing, shaping portion is close to the one side of going up the mould be equipped with first wire casing complex second wire casing, first movable mould benevolence is close to the one side of going up the mould still is equipped with the third wire casing, the third wire casing with first wire casing interval sets up.

2. The coil winding jig of claim 1, characterized in that: the first wire groove and the second wire groove are consistent in depth.

3. The coil winding jig of claim 1, characterized in that: the shaping portion is the annular just shaping portion with the periphery wall laminating of decide mould benevolence, the degree of depth of second wire casing is less than or equal to the height of shaping portion.

4. The coil winding jig of claim 1, characterized in that: the depth of the third wire groove is larger than that of the first wire groove.

5. The coil winding jig of claim 1, characterized in that: one end of the third wire groove is provided with a round angle.

6. The coil winding jig of claim 1, characterized in that: the mould goes up with still be equipped with the carrier film between the lower mould, the carrier film is close to the one side of lower mould has the stickness just the carrier film is in the driving of last mould is compressed tightly down on the lower mould.

7. The coil winding jig of claim 1, characterized in that: the output end of the first driving piece is matched with the first movable die core.

8. The coil winding jig of claim 1, characterized in that: the die further comprises a second driving piece, a connecting block is arranged on the peripheral wall of the second movable die core, and the output end of the second driving piece is matched with the connecting block.

9. The coil winding jig of claim 1, characterized in that: the die further comprises a third driving piece, and the output end of the third driving piece is matched with the upper die.