CN113410047A - Self-adhesive coil baking device and baking method thereof - Google Patents
Self-adhesive coil baking device and baking method thereof Download PDFInfo
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- CN113410047A CN113410047A CN202110593063.2A CN202110593063A CN113410047A CN 113410047 A CN113410047 A CN 113410047A CN 202110593063 A CN202110593063 A CN 202110593063A CN 113410047 A CN113410047 A CN 113410047A
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- 238000004804 winding Methods 0.000 claims abstract description 78
- 239000000463 material Substances 0.000 claims abstract description 62
- 239000011230 binding agent Substances 0.000 claims abstract description 57
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/12—Insulating of windings
- H01F41/122—Insulating between turns or between winding layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
- H01F41/06—Coil winding
- H01F41/098—Mandrels; Formers
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention relates to a self-adhesive coil baking device and a baking method thereof, the self-adhesive coil baking device is used for baking and curing a metal base line, the metal base line is coated with at least one layer of self-adhesive binder material, the self-adhesive coil baking device comprises a machine table, a winding mechanism and a baking mechanism, wherein: the winding mechanism comprises at least one winding shaft, and the winding shaft is rotatably fixed on the machine table and used for winding and forming the metal base line; the baking mechanism comprises a laser capable of emitting laser beams, and the emitted laser beams are arranged opposite to the metal base line at intervals; the self-adhesive coil baking device enables the self-adhesive binder material to be solidified on the surface of the metal base line by utilizing the high-power-density energy of the laser beam focused on the coil, and an insulating coating layer is formed on the surface of the metal base line; and the heat focused on the coil is concentrated, the heat utilization rate is high, the controllability is strong, and the bonding property of the metal base line and the self-adhesive binder material can be obviously improved.
Description
Technical Field
The invention relates to the technical field of coil winding equipment, in particular to a self-adhesive coil baking device and a baking method thereof.
Background
With the increasing rapid growth of the power industry, household appliances and the like, the self-adhesive enameled coil is used as a main raw material of products such as motors, electric appliances, household appliances and the like, and the manufacture of the coil is simple and easy due to the special processing performance of the self-adhesive enameled coil, so that the self-adhesive enameled coil is widely applied to the manufacture of various electromagnetic coils with complicated shapes or without frameworks. The self-adhesive enameled coil almost adopts a composite layer structure, namely, the surface of the metal base wire is uniformly coated with the self-adhesive binder material, and the metal base wire coated with the self-adhesive binder material is baked and cured to form a smooth insulating layer, so that the enameled coil has good insulating property, and the requirement that the coil is required to be ensured to have insulativity after being wound and formed is met.
In the prior art, the baking and curing of the metal base wire and the self-adhesive binder material are usually realized by adopting the following two modes, the first mode is to separately carry out the winding and the baking of the self-adhesive coil, but the production process of the baking and curing mode is complex, the requirement on equipment is higher, in the process of transferring the wound metal base wire to a baking box, the wound metal base wire is easy to rebound, the yield and the production efficiency of the self-adhesive coil are seriously influenced, and the bonding between the metal base wire and the self-adhesive binder material is poorer. The second is to set up the hot-blast gun in the coil winding equipment, the coil that is being wound is directly toasted to the steam that blows off through the hot-blast gun, makes the coiling and the toasting of self-adhesive coil go on simultaneously, but the toast heat of hot-blast gun is comparatively dispersed, leads to energy loss too big, and the heat size of hot-blast gun is difficult to control, and the associativity of metal base line and autohension lacquer base material is poor, easily produces the layering after long-time the use, seriously influences the performance and the life-span of coil.
Disclosure of Invention
In view of the above, it is necessary to provide a baking apparatus for self-adhesive coil and a baking method thereof, which can solve the problem of poor adhesion between the metal base wire and the self-adhesive binder material during the coil winding process.
A self-adhesive coil baking apparatus for bake curing of a metallic basestring coated with at least one layer of a self-adhesive binder material, comprising:
a machine platform;
the winding mechanism comprises at least one winding shaft, and the winding shaft is rotatably fixed on the machine table and used for winding and forming the metal base line;
and the baking mechanism comprises a laser capable of emitting laser beams, and the emitted laser beams are arranged opposite to the metal base line at intervals.
The self-adhesive coil baking device is used for baking and curing the metal base wire and the self-adhesive binder material in the winding and forming process of the coil; the metal base line is driven to rotate along with the winding shaft by rotation of the winding shaft so as to be used for winding and forming the metal base line; in the process of winding and forming the coil, the laser can emit laser and act on the surface of the coil, the self-adhesive binder material can be solidified on the surface of the metal base line by utilizing the high-power-density energy of the laser beam focused on the coil, and an insulating coating layer is formed on the surface of the metal base line. The self-adhesive coil baking device has the advantages that the energy of the laser beam focused on the metal base line is concentrated, the energy utilization rate of the laser beam is high, the controllability of the heat quantity is strong, and the bonding property of the metal base line and the self-adhesive binder material can be obviously improved.
In one embodiment, the laser comprises a laser generator capable of generating a laser beam and at least one light-emitting lens for receiving the laser beam emitted by the laser generator, and the light-emitting lens is arranged opposite to the metal base line at an interval.
In one embodiment, the winding mechanism has a plurality of winding shafts, the metal base line is fixed to one end of each winding shaft away from the machine, and the laser has a plurality of light-emitting lenses corresponding to the metal base lines.
In one embodiment, the laser further comprises a vibrating mirror connected with the laser generator, and the light-emitting lens is arranged on one side of the light-emitting side of the vibrating mirror.
In one embodiment, the laser generator and the light-emitting lens are detachably connected into a whole through an optical fiber.
In one embodiment, the focal point of the laser beam focused by the laser is positioned in the plane of the axis of the winding shaft.
In one embodiment, the device further comprises a driving mechanism, wherein the driving mechanism comprises a motor with a transmission wheel and a plurality of synchronous wheel sets, a synchronous belt is wound between the transmission wheel and the synchronous wheel set adjacent to the transmission wheel, and a synchronous belt is wound between two adjacent synchronous wheel sets.
In one embodiment, the motor has a first output shaft, the transmission wheel is sleeved on the first output shaft, the synchronous wheel set has a second output shaft, and the winding shaft is sleeved on the second output shaft.
The baking method of the self-adhesive coil baking device in any technical scheme comprises the following steps:
providing a metallic basestring coated with a self-adhesive binder material;
fixing the metal base line on the winding shaft;
starting a laser, and adjusting the position of the laser until the focus of a laser beam emitted by the laser is positioned on the plane where the axis of the winding shaft is positioned;
the winding shaft is driven to rotate, and meanwhile, the laser beam emitted by the laser irradiates the surface of the metal base line.
The baking method is used for baking and curing the metal base wire and the self-adhesive binder material in the winding and forming process of the coil, and firstly, the metal base wire coated with the self-adhesive binder material is provided; fixing the metal base line on a winding shaft, and driving the metal base line to rotate along with the winding shaft through rotation of the winding shaft so as to be used for winding and forming a coil; then starting the laser, and adjusting the position of the laser until the focus of a laser beam emitted by the laser is positioned on the plane of the axis of the winding shaft so as to realize that the laser is gathered on the plane of the axis of the winding shaft, so that the laser beam can be received at each position when the metal base wire rotates around the winding shaft; and finally, driving the winding shaft to rotate, and simultaneously enabling the high-power-density energy of the laser beam to act on the surface of the metal base line to bake and cure the metal base line and the self-adhesive binder material. The baking method has simple process, can obviously improve the bonding property of the metal base line and the self-adhesive binder material, and prolongs the service performance and the service life of the coil.
In one embodiment, after the coil is wound and formed, cooling crystallization treatment is carried out at normal temperature.
Drawings
FIG. 1 is a schematic view of the overall structure of a self-adhesive coil baking apparatus according to the present invention;
FIG. 2 is a schematic structural diagram of a winding mechanism and a driving mechanism of the baking apparatus for self-adhesive coils according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at position A;
FIG. 4 is a process flow diagram of a baking method according to the present invention.
Reference numerals
100. A self-adhesive coil baking device;
110. a machine platform;
120. a winding mechanism; 121. a spool; 122. a metallic baseline;
130. a baking mechanism; 131. a laser; 132. a laser generator; 133. a light emitting lens; 134. an optical fiber;
140. a drive mechanism; 141. a motor; 142. a transmission wheel; 143. a synchronous wheel set; 144. a synchronous belt; 145. a first output shaft; 146. a second output shaft.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
The technical scheme provided by the embodiment of the invention is described below by combining the accompanying drawings.
As shown in fig. 1, fig. 2 and fig. 3, the present invention provides a baking apparatus 100 for a self-adhesive coil, which is used for baking and curing a metal base wire 122 and a self-adhesive binder material during a coil winding process, wherein the metal base wire 122 is coated with at least one layer of the self-adhesive binder material, the baking apparatus 100 for a self-adhesive coil includes a machine table 110, a winding mechanism 120 and a baking mechanism 130, wherein:
the winding mechanism 120 includes at least one winding shaft 121, the winding shaft 121 is rotatably fixed on the machine base 110, the winding shaft 121 has two opposite ends, the metal base wire 122 is fixed on one of the ends of the winding shaft 121, and the winding of the coil is realized through the rotation of the winding shaft 121. When a plurality of bobbins 121 are provided, the plurality of bobbins 121 are rotatably fixed to the machine base 110 in parallel.
The baking mechanism 130 includes a laser 131 capable of emitting a laser beam, and the emitted laser beam is disposed opposite to the metal base wire 122 at a distance, and is used for focusing the laser beam emitted by the laser 131 on the surface of the metal base wire 122 to bake and cure the metal base wire 122 and the self-adhesive binder material.
The self-adhesive coil baking device 100 is used for baking and curing the metal base wire 122 and the self-adhesive binder material in the coil winding and forming process; the bobbin 121 is rotatably fixed on the machine 110, and the metal base wire 122 is driven to rotate along with the bobbin 121 for winding and forming the metal base wire 122; in the process of winding and forming the coil, the laser 131 can emit laser and act on the surface of the coil, and the self-adhesive binder material can be solidified on the surface of the metal base wire 122 by using the high-power-density energy of the laser beam focused on the coil, so as to form an insulating coating layer on the surface of the metal base wire 122. The self-adhesive coil baking device 100 has the advantages that the energy of the laser beam focused on the metal base wire 122 is concentrated, the utilization rate of the energy of the laser beam is high, the controllability of the heat quantity is strong, the bonding property of the metal base wire 122 and the self-adhesive binder material can be obviously improved, and the service performance and the service life of the coil are prolonged.
For different self-adhesive binder materials, the energy required for baking and curing the metal base wire 122 and the self-adhesive binder material is different, and in order to enhance the energy controllability of the laser beam focused on the surface of the metal base wire 122, in a preferred embodiment, as shown in fig. 1, the laser 131 includes a laser generator 132 capable of generating a laser beam and at least one light-emitting lens 133, the light-emitting lens 133 can receive the laser beam emitted by the laser generator 132, and the light-emitting lens 133 and the metal base wire 122 are disposed at an interval and opposite to each other. By adjusting the position of the light-emitting lens 133, the laser emitted by the laser generator 132 can be focused on different planes, thereby facilitating control of the heat transferred to the surface of the metal base line 122 and avoiding movement of the whole laser 131; on one hand, the laser 131 is large in size and not easy to move, and on the other hand, the laser 131 is frequently moved, so that the laser 131 is damaged to a certain extent, and great economic loss is brought to enterprises.
To improve the baking and curing efficiency of the metal base wire 122 and the self-adhesive binder material, as shown in fig. 1 and fig. 2, the winding mechanism 120 has a plurality of winding shafts 121, a coil is fixed on the winding shaft 121, the coil is located at one end of the winding shaft 121 far away from the machine 110, and the baking mechanism 130 has a plurality of light-emitting lenses 133 corresponding to the coil. The light-emitting lenses 133 and the winding shafts 121 are arranged in one-to-one correspondence, laser beams emitted by the laser generator 132 can be projected onto the surface of the metal base line 122 after being focused by the light-emitting lenses 133, and the metal base line 122 and the self-adhesive binder material are baked and cured in the winding and forming process of the coil, so that the baking and curing efficiency of the metal base line 122 and the self-adhesive binder material is effectively improved. It should be noted that, when the curing temperature of the self-adhesive binder material is not high, the plurality of bobbins 121 of the winding mechanism 120 may also correspond to only one light-emitting lens 133, and the laser beam emitted by the laser generator 132 is focused by the light-emitting lens 133 and then projected onto the surfaces of the plurality of metal baselines 122 to provide the heat required for curing the metal baselines 122 and the self-adhesive binder material.
In the winding process of the coil, the heat of baking and curing the metal base wire 122 and the self-adhesive binder material needs to be controlled, specifically, the laser 131 further includes a vibrating mirror (not shown), the vibrating mirror is connected with the laser generator 132, and the light-emitting lens 133 is fixed on the light-emitting side of the vibrating mirror in the form of clamping, embedding, screwing and the like. The laser beam emitted from the laser generator 132 can be deflected while passing through the galvanometer, so that the focal point of the laser beam with high power density energy can move along a specific path in the coil winding space, thereby changing the heat transferred to the coil surface to provide the heat required for baking and curing the metal base wire 122 and the self-adhesive paint base material. It should be noted that the control of the heat quantity of the baking and curing of the metal base line 122 and the self-adhesive binder material is not limited to the use of a vibrating mirror to change the focal position of the laser beam, and in the case of low heat quantity control accuracy requirement, the moving mechanism may be arranged to change the position of the light-emitting lens 133 by controlling the moving mechanism, so as to change the focal position of the laser beam emitted by the laser generator 132 after being focused by the light-emitting lens 133, and further change the heat quantity transferred to the surface of the metal base line 122.
In order to make the laser beam energy emitted from the laser generator 132 fully utilized, in a preferred embodiment, as shown in fig. 1, the laser generator 132 and the light emitting lens 133 are detachably connected into a whole through the optical fiber 134, the laser beam emitted from the laser generator 132 is transmitted inside the optical fiber 134, the energy loss is low, the laser beam is transmitted through the optical fiber 134 without refocusing, the controllability of the heat transferred to the surface of the metal base wire 122 is high, the bonding strength between the metal base wire 122 and the self-adhesive binder material can be significantly improved, and the service performance and the service life of the coil can be prolonged. Of course, in other embodiments, the laser beam emitted by the laser generator 132 may be transmitted through an external optical path formed by combining the reflecting mirror and the focusing mirror, and the specific transmission manner of the laser beam is not limited in the present invention, and it only needs to satisfy that the high power density energy emitted by the laser generator 132 can be transmitted to the surface of the metal base wire 122, so as to provide the heat required for baking and curing the metal base wire 122 and the self-adhesive paint base material.
In order to further improve the baking and curing quality of the metal base wire 122 and the self-adhesive binder material, in a preferred embodiment, as shown in fig. 1, a focal point of a laser beam focused by the light-emitting lens 133 is located on a plane where an axis of the bobbin 121 is located, heat transferred to the surface of the coil during the winding process of the coil is uniform, the quality of a coating layer formed by curing the self-adhesive binder material on the surface of the metal base wire 122 is good, and when the heat transferred to the surface of the metal base wire 122 is not uniform, internal stress of the coating layer is concentrated, and in the long-term use process of the coil, the insulating coating layer on the surface of the metal base wire 122 is prone to delamination, cracking and the like, which seriously affects the service performance and the service life of the coil. Certainly, for the situation that the quality requirement of the coating layer formed by baking and curing the metal base wire 122 and the self-adhesive binder material is not high, the focal point of the laser beam focused by the light-emitting lens 133 may be located on the outer surface or the inner surface of the metal base wire 122, or may be actually set according to the specific requirement.
The bobbin 121 is rotatably fixed on the machine 110 to achieve winding and forming of a coil, as shown in fig. 2 and 3, in a preferred embodiment, the self-adhesive coil baking apparatus 100 further includes a driving mechanism 140, the driving mechanism 140 includes a motor 141 and a plurality of synchronous wheel sets 143, the motor 141 has a transmission wheel 142, a synchronous belt 144 is wound between the transmission wheel 142 and the adjacent synchronous wheel set 143, the synchronous belt 144 is wound between the two adjacent synchronous wheel sets 143, the motor 141 has a first output shaft 145, the transmission wheel 142 is sleeved on the first output shaft 145, the plurality of synchronous wheel sets 143 each have a second output shaft 146, and the bobbin 121 is sleeved on the second output shaft 146.
The self-adhesive coil baking device 100 outputs power to the first output shaft 145 through the motor 141, the transmission wheel 142 sleeved on the first output shaft 145 is driven to rotate, the synchronous belt 144 is arranged between the transmission wheel 142 and the adjacent synchronous wheel set 143 in a winding mode, the synchronous belt 144 is arranged, the transmission wheel 142 transmits the power to the adjacent synchronous wheel set 143, the adjacent synchronous wheel set 143 is driven to rotate, the synchronous wheel set 144 drives the synchronous wheel sets 143 to rotate simultaneously, the synchronous wheel set 143 outputs power to the second output shaft 146, the rotary rotation of the winding shaft 121 is driven, and therefore the winding forming of the coil is achieved. The driving mechanism 140 is not limited to the power output method of the timing pulley set 143 and the timing belt 144, and may transmit the output power of the motor 141 to the bobbin 121 through a form of a gear, a rack and pinion, a sprocket, or the like, which are engaged with each other, to thereby wind the coil.
The self-adhesive binder material forms a coating layer after the surface of the metal base wire 122 is cured, so that the coils are insulated from each other, in a preferred embodiment, the multi-layer self-adhesive binder material is one or more of phenolic resin, epoxy resin, silicone resin and polyurethane, and the coating layer can be formed after the self-adhesive binder material is cured on the surface of the metal base wire 122, so that the coils have good insulation. The self-adhesive binder material is not limited to the phenolic resin, the epoxy resin, the silicone resin, and the polyurethane provided above, but may be other materials that have viscosity, can flow on the surface of the metal element wire 122 before curing, can form a coating layer on the surface of the metal element wire 122 after curing, and have insulating properties. The invention is not limited with respect to the specific material of the self-adhesive binder material.
In addition, the present invention also provides a baking method of the above self-adhesive coil baking apparatus 100, as shown in fig. 4, the baking method includes the following steps:
step S401: a metallic base string 122 coated with a self-adhering binder material is provided.
Before the surface of the metal base wire 122 is coated with the self-adhesive binder material, the surface of the metal base wire 122 needs to be cleaned with fine sandpaper or cleaning cloth to remove impurities such as rust, dust and the like on the surface of the metal base wire 122, so that the surface of the metal base wire 122 is smooth, the thickness of the self-adhesive binder material coated on the surface of the metal base wire 122 tends to be consistent, and the quality of an insulating coating formed on the surface of the metal base wire 122 by the self-adhesive binder material is ensured to be good.
Step S402: the metallic element wire 122 is fixed to the bobbin 121.
Step S403: and starting the laser 131, and adjusting the position of the laser 131 until the focus of the laser beam emitted by the laser 131 is located on the plane where the axis of the bobbin 121 is located.
The light emitting signal is controlled by the PLC, so that the laser 131 can emit a laser beam with specific power density energy, and the laser beam is focused on the plane of the axis of the winding shaft 121. In this embodiment, the focal point of the laser beam emitted by the laser generator 132 focused by the optical lens 133 is located on the plane where the axis of the bobbin 121 is located. In other embodiments, the focal point of the laser beam emitted by the laser generator 132 focused by the light-emitting lens 133 may be directly located on the surface of the metal base line 122, and the heat is transferred on the surface of the metal base line 122 to bake and cure the metal base line 122 and the self-adhesive binder material.
In addition, in this embodiment, the power of the laser 131 is 300W, in other embodiments, the laser 131 with other power may be selected, and the power of the laser 131 may be selected according to actual requirements, such as: the type of the self-adhesive binder material, the number of layers of the self-adhesive binder material, and the like. The control method of the laser 131 is not limited to PLC control, and may be an integrated control board or other control methods.
Step S404: the bobbin 121 is driven to rotate, and the laser beam emitted from the laser 131 is irradiated on the surface of the metal base wire 122.
After the focal position of the laser beam is adjusted, the bobbin 121 is driven to rotate, and the winding and forming of the coil and the baking and curing of the metal base wire 122 and the self-adhesive binder material are started. It should be noted that, during the rotation of the bobbin 121, the rotation speed of the bobbin 121 needs to be kept low, so as to ensure that the surface of the metal element wire 122 can be fully exposed to the heat environment, and also to improve the bonding strength between the metal element wire 122 and the self-adhesive binder material.
The baking method is used for baking and curing the metal base wire 122 and the self-adhesive binder material in the winding and forming process of the coil, and firstly, the step S401 is carried out to provide the metal base wire 122 coated with the self-adhesive binder material; then, through step S402, the metal base wire 122 is fixed on the bobbin 121, and the metal base wire 122 is driven to rotate along with the bobbin 121 by the rotation of the bobbin 121, so as to be used for winding and forming a coil; then, through step S403, the laser 131 is started, and the position of the laser 131 is adjusted until the focal point of the laser beam emitted by the laser 131 is located on the plane where the axis of the bobbin 121 is located, so that the laser 131 is focused on the plane where the axis of the bobbin 121 is located, and each position can receive the laser beam when the metal base wire 122 rotates around the axis of the bobbin 121; finally, in step S404, the bobbin 121 is driven to rotate, and the high power density energy of the laser beam can act on the surface of the metal base wire 122, so as to bake and cure the metal base wire 122 and the self-adhesive binder material. The baking method has simple process, can obviously improve the bonding property of the metal base wire 122 and the self-adhesive binder material, and prolongs the service performance and the service life of the coil.
In order to speed up the forming of the coil, in a preferred embodiment, the baking method further comprises the steps of:
after the coil is wound and formed, cooling and crystallizing treatment are carried out at normal temperature.
After the coil is wound and formed, the laser generator 132 is controlled by the PLC to close the light emitting action, and a blower or other blowing devices are used for blowing cold air to the surface of the coil, so that the cooling crystallization of the coating layer formed on the surface of the metal base wire 122 by the self-adhesive binder material is accelerated. After the coil is molded, the coil may be placed in a normal temperature environment and then subjected to cooling crystallization. According to the baking method, cold air is blown to the surface of the wound coil, so that the forming of the coil is accelerated, the deformation of the coil in the forming process due to the large thermal stress on the surface of the wound coil is avoided, and the quality of the coil is obviously improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A self-adhesive coil baking apparatus for baking and curing a metallic base wire coated with at least one layer of a self-adhesive binder material, comprising:
a machine platform;
the winding mechanism comprises at least one winding shaft, and the winding shaft is rotatably fixed on the machine table and used for winding and forming the metal base line;
and the baking mechanism comprises a laser capable of emitting laser beams, and the emitted laser beams are arranged opposite to the metal base line at intervals.
2. The baking apparatus of claim 1, wherein the laser device includes a laser generator capable of generating a laser beam and at least one light-emitting lens for receiving the laser beam emitted from the laser generator, and the light-emitting lens is disposed opposite to the metal base line at a distance.
3. The baking apparatus of claim 2, wherein the winding mechanism has a plurality of winding shafts, the metal base line is fixed to one end of each winding shaft away from the machine, and the laser has a plurality of light-emitting lenses corresponding to the metal base lines.
4. The baking device for the self-adhesive coil according to claim 2, wherein the laser further comprises a vibrating mirror connected with the laser generator, and the light-emitting lens is disposed on a side of the vibrating mirror where light is emitted.
5. The baking apparatus of claim 2, wherein the laser generator and the light emitting lens are detachably connected to each other through an optical fiber.
6. The baking apparatus for self-adhesive coils of claim 1 wherein the focal point of the laser beam focused by the laser is located in the plane of the axis of the bobbin.
7. The baking device for self-adhesive coils of claim 1, further comprising a driving mechanism, wherein the driving mechanism comprises a motor with a transmission wheel, a plurality of synchronous wheel sets, a synchronous belt is wound between the transmission wheel and the synchronous wheel set adjacent to the transmission wheel, and a synchronous belt is wound between two adjacent synchronous wheel sets.
8. The baking apparatus of claim 7, wherein the motor has a first output shaft, the transmission wheel is sleeved on the first output shaft, the synchronous wheel set has a second output shaft, and the winding shaft is sleeved on the second output shaft.
9. A baking method of the self-adhesive coil baking apparatus as claimed in any one of claims 1 to 8, comprising:
providing a metallic basestring coated with a self-adhesive binder material;
fixing the metal base line on the winding shaft;
starting a laser, and adjusting the position of the laser until the focus of a laser beam emitted by the laser is positioned on the plane where the axis of the winding shaft is positioned;
the winding shaft is driven to rotate, and meanwhile, the laser beam emitted by the laser irradiates the surface of the metal base line.
10. The baking method as claimed in claim 9, wherein the coil is further subjected to cooling crystallization at room temperature after being wound.
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| CN202110593063.2A CN113410047A (en) | 2021-05-28 | 2021-05-28 | Self-adhesive coil baking device and baking method thereof |
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