CN220306034U

CN220306034U - Insulated wire's apparatus for producing

Info

Publication number: CN220306034U
Application number: CN202321801790.4U
Authority: CN
Inventors: 刘惠萍; 朱悦嘉; 朱祚茂; 苏星
Original assignee: Jiateng Electric Industry Ganzhou Co ltd
Current assignee: Jiateng Electric Industry Ganzhou Co ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2024-01-05
Anticipated expiration: 2033-07-10

Abstract

The embodiment of the application provides a production device of an insulated wire. The forming device is arranged at the downstream of the paying-off device and comprises a wire drawing device, a first annealing device, a first coating device and a first calendaring device which are sequentially arranged at the downstream of the paying-off device, wherein the wire drawing device is used for drawing wires to be processed; the shaping device is arranged at the downstream of the shaping device and comprises a preheating device, a lubricating oil coating device, a shaping die and a second annealing device, wherein the preheating device is used for preheating a wire to be processed; the wire winding device is used for winding the processed wire.

Description

Insulated wire's apparatus for producing

Technical Field

The application relates to the field of enameled wire manufacturing, in particular to a production device of an insulated wire.

Background

The medium and small flat wire is a medium and small sized enameled wire, and generally refers to an enameled wire with a thickness of about 0.1-0.3 mm and a width of 1.0-3.0 mm. The middle and small flat wire is generally wound in a multilayer flat winding mode, and when the middle and small flat wire is wound, the number of layers of flat winding is large, the wire is thinner and wider, the contact area is larger, and when the number of layers of the multilayer flat winding reaches 50-100, the problems of left and right deflection, convex hull and the like of the coil can occur. That is, when the flatness of the middle and small flat wires in the thickness direction is poor and the upper and lower surface parallelism is greater than 2 to 3 μm, the continuous accumulation of errors causes that the overall external dimensions of the coils wound by the middle and small flat wires deviate greatly and cannot meet the standard requirements of the flatness of products, and particularly, a large gap is formed when a plurality of coils are stacked. How to improve the precision of the medium and small flat wire is a problem to be considered at present.

Disclosure of Invention

The application provides a production device of insulated wire to improve the machining precision of medium and small flat wire.

In order to solve the technical problems, the application adopts the following technical scheme:

the embodiment of the application provides a production device of insulated wire, including pay-off, forming device, shaping device and take-up. The paying-off device is used for paying off the wire to be processed; the forming device is arranged at the downstream of the paying-off device and comprises a wire drawing device, a first annealing device, a first coating device and a first calendaring device which are sequentially arranged at the downstream of the paying-off device, wherein the wire drawing device is used for drawing wires to be processed; the shaping device is arranged at the downstream of the shaping device and comprises a preheating device, a lubricating oil coating device, a shaping die and a second annealing device, wherein the preheating device is used for preheating a wire to be processed; the wire winding device is used for winding the processed wire.

In this embodiment, the paying-off device may be a paying-off device such as a paying-off machine for paying off a wire to be processed, and the winding device may be a winding device such as a winding machine for winding a wire, which is used for winding a wire after processing. The wire drawing device is arranged at the downstream of the paying-off device and is used for drawing the bare conductor wire to be processed to obtain a round bare conductor wire. The first annealing device is arranged downstream of the wire drawing device and is used for annealing the round wire bare wire. The first coating device is disposed downstream of the first annealing device for coating and baking the bare round wire to obtain a first core wire. The first rolling device is disposed downstream of the first coating device for rolling the first core wire to obtain a flat core wire. The preheating device is arranged at the downstream of the first calendaring device and is used for preheating the flat core wire, so that the flexibility of the wire to be processed can be improved. And the lubricating oil coating device is arranged at the downstream of the preheating device and is used for coating mineral oil on the flat core wire, and the mineral oil is beneficial to the speed of rear end shaping and reduces the damage of a paint film. The shaping die is arranged at the downstream of the lubricating oil coating device, and the wire to be processed after preheating and lubricating oil coating is shaped through the shaping die, so that a preset target core wire is obtained. The second annealing device is arranged at the downstream of the shaping die, so that the problem of local hardening of the lead caused by the previous shaping process can be solved. And finally, the processed medium and small flat wire is wound by a winding device, so that the medium and small flat wire is stored.

The production device of the insulated wire in the embodiment firstly processes and shapes the wire to be processed through the forming device, then shapes the wire to be processed through the shaping device, so that the precision reduction caused by the earlier process can be avoided through a post-processing shaping mode, the problems of uneven conductor and the head angle of a paint film bone after the over-molding in the related technology are improved, the parallelism and the flatness of the medium and small flat wire are controlled within 1 mu m, and the precision of the medium and small flat wire can be improved. In a specific application scenario, the parallelism and flatness of the medium and small flat wire can be controlled within 0.5 μm, so that many special application requirements can be met.

In addition, the production apparatus of an insulated wire according to the embodiment of the present application may further have the following technical features:

in some embodiments of the present application, the forming apparatus further comprises a second coating apparatus, a second calendaring apparatus, and a third coating apparatus, the second calendaring apparatus, and the third coating apparatus being disposed in sequence downstream of the first calendaring apparatus.

In some embodiments of the present application, the preheating temperature of the preheating device is greater than or equal to 80 ℃ and less than or equal to 100 ℃.

In some embodiments of the present application, the annealing temperature of the second annealing device is greater than or equal to 120 ℃ and less than or equal to 150 ℃.

In some embodiments of the present application, the die hole has a size slightly smaller than the size of the wire to be processed passing through the molding device, the die hole has a broadside size that is 4 μm to 5 μm smaller than the broadside size of the wire to be processed, and the die hole has a narrow side size that is 1 μm to 2 μm smaller than the narrow side size of the wire to be processed.

In some embodiments of the present application, the first calendaring apparatus includes at least a first calendaring die for defining the dimensions of the wire to be processed after calendaring.

In some embodiments of the present application, the second calendaring apparatus includes at least a second calendaring die for defining the dimensions of the wire to be processed after calendaring.

In some embodiments of the present application, the first coating device is applied in a felt coating manner.

In some embodiments of the present application, the baking temperature of the first coating device is greater than or equal to 380 ℃ and less than or equal to 450 ℃.

In some embodiments of the present application, the baking temperature of the second coating device is greater than or equal to 380 ℃ and less than or equal to 450 ℃, and the baking temperature of the third coating device is greater than or equal to 380 ℃ and less than or equal to 450 ℃.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following description will briefly introduce the drawings that are required to be used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other embodiments may also be obtained according to these drawings to those skilled in the art.

Fig. 1 is a structural view of a production apparatus of an insulated wire in an embodiment of the present application;

fig. 2 is a cross-sectional view of one of the medium and small flat wires in the related art;

fig. 3 is a cross-sectional view of another medium and small flat wire according to the related art;

fig. 4 is a cross-sectional view of a medium and small flat wire in one of the cases after multilayer flat winding in the related art;

fig. 5 is a cross-sectional view of a medium and small flat wire in another case after multilayer flat winding in the related art.

The reference numerals are as follows:

10 medium-small flat wire; 20, a wire to be processed;

100 paying-off devices; 200 forming devices; 210 a wire drawing device; 220 a first annealing device; 231 a first coating device; a second coating device 232; 233 a third coating device; 241 a first calendaring apparatus; 242 second calendaring means; 300 shaping device; 310 a preheating device; 320 lubricating oil coating device; 330 shaping the mould; 340 a second annealing device; 400 wire winding devices; 500 guide wheels.

Detailed Description

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other embodiments may be obtained according to these drawings to those of ordinary skill in the art.

As shown in fig. 2 and 3, a cross-sectional view of the medium and small flat wire 10 is shown. As shown in fig. 4 and 5, when the number of layers of the multi-layer flat wound medium and small flat wire 10 reaches 50 to 100, problems such as left and right skew of the wire package, convex hull, and the like occur.

In order to improve the precision of the medium and small flat wire 10, the current manufacturing process mainly adopts a conductor flattening over-mold to control the conductor size, and a felt method or a mold method is used for multiple painting to control the thickness and uniformity of a paint film after the conductor prefabrication is finished. The size fluctuation of the conductor after the over-molding can be controlled within 1 mu m, but the size fluctuation of the conductor is improved to 1-2 mu m due to the tension and the line distortion loss in the painting process of the later working procedure, the fluctuation of paint films of the existing painting adopts a plurality of few-coating processes, the fluctuation of paint films is difficult to control within 1 mu m, the problems of extremely poor paint films and bone angles of felt painting and dies are easily caused due to the problems of different postures of the paint films of the conductor, the flatness and the parallelism of the paint films of the felt painting and the dies are easily caused, the extremely poor paint films of the enameled wires are caused to be between 1-2 mu m, and the integral flatness and the parallelism fluctuation of the enameled wires are caused by the accumulated error of the conductor and the paint films to be between 2-3 mu m. That is, referring to fig. 2 and 3, the parallelism of the micro flat wires 10 between the P1P2 in the prior art can be controlled to be between 2um and 3um at the minimum, and the parallelism of the micro flat wires 10 between the P1P3 is between 2um and 3 um. How to improve the accuracy of the medium and small flat wire 10 is a problem that needs to be considered at present.

As shown in fig. 1, an embodiment of the present application proposes a production apparatus for insulated wires, including a pay-off apparatus 100, a forming apparatus 200, a shaping apparatus 300, and a take-up apparatus 400. The paying-off device 100 is used for paying off the wire 20 to be processed; the forming device 200 is arranged at the downstream of the paying-off device 100, and comprises a wire drawing device 210, a first annealing device 220, a first coating device 231 and a first calendaring device 241 which are sequentially arranged at the downstream of the paying-off device 100, wherein the wire drawing device 210 is used for drawing a wire 20 to be processed, the first annealing device 220 is used for annealing the wire 20 to be processed, the first coating device 231 is used for coating and baking the wire 20 to be processed, and the first calendaring device 241 is used for calendaring the wire 20 to be processed; the shaping device 300 is arranged at the downstream of the shaping device 200 and comprises a preheating device 310, a lubricating oil coating device 320, a shaping die 330 and a second annealing device 340, wherein the preheating device 310 is used for preheating the wire 20 to be processed, the lubricating oil coating device 320 is used for coating lubricating oil on the wire 20 to be processed, the shaping die 330 is used for shaping the wire 20 to be processed, the shaping die 330 comprises a die hole, the wire to be processed is penetrated through the die hole, and the second annealing device 340 is used for annealing the wire 20 to be processed; the wire winding device 400 is used for winding the processed wire.

In this embodiment, the paying-off device 100 may be a paying-off device such as a paying-off machine for paying out the wire 20 to be processed, and the winding device 400 may be a winding device such as a winding machine for winding up the wire after processing. A wire drawing device 210 for drawing a bare conductor wire to be processed to obtain a round bare conductor wire is provided downstream of the wire releasing device 100. A first annealing device 220 for annealing the bare round wire is provided downstream of the wire drawing device 210. The first coating device 231 is disposed downstream of the first annealing device 220, and is used to coat and bake the bare round wire to obtain a first core wire. A first calendaring device 241 is provided downstream of the first coating device 231 for calendaring the first core wire to obtain a flat core wire. The preheating device 310 is further included in the present embodiment, which is disposed downstream of the first calendaring device 241 for preheating the flat core wire, so that the flexibility of the wire 20 to be processed can be improved. A lubricating oil coating device 320 is provided downstream of the preheating device 310 for coating mineral oil on the flat core wire, the mineral oil contributing to the speed of the rear end shaping, reducing damage to the paint film. The molding die 330 is disposed downstream of the lubricant applying device 320, and the molding die 330 further includes a die hole, and the wire 20 to be processed after being preheated and coated with lubricant is then molded through the die hole of the molding die 330, thereby obtaining a predetermined target core wire. The second annealing device 340 is disposed downstream of the shaping die 330, which can improve the problem of partial hardening of the wire due to the previous shaping process. Finally, the processed medium and small flat wire 10 is wound up by the winding up device 400.

In the apparatus for producing insulated wires in this embodiment, the wire 20 to be processed is processed and molded by the molding device 200, and then the wire 20 to be processed is molded by the molding device 300, so that the precision reduction caused by painting can be avoided, the problems of uneven conductor and the angle of the bone of the paint film after the film is coated in the related art can be improved, and the parallelism between the P1P3 and the flatness between the P1P2 of the medium and small flat wire 10 can be controlled within 1 μm, so that the precision of the medium and small flat wire 10 can be improved. In a specific application scenario, the parallelism between P1P3 and the flatness between P1P2 of the medium and small flat wire 10 can be controlled within 0.5 μm, which can meet many special application requirements.

In a specific embodiment of the present application, the forming apparatus 200 further includes a second coating apparatus 232, a second calendaring apparatus 242, and a third coating apparatus 233, and the second coating apparatus 232, the second calendaring apparatus 242, and the third coating apparatus 233 are disposed downstream of the first calendaring apparatus 241 in this order.

In this embodiment, after the wire 20 to be processed passes through the first rolling device 241, a flat core wire can be obtained. The second coating device 232 is disposed downstream of the first calendaring device 241 for coating and baking the flat core wire to obtain a second core wire. A second calendaring device 242 is disposed downstream of the second coating device 232 for calendaring the second core wire to obtain a target core wire. A third coating device 233 is provided downstream of the second calendaring device 242 for coating and baking the target core wire to obtain an ultra-fine flat insulated wire. Finally, the ultra fine flat insulated wire is shaped by the shaping device 300 to obtain the medium and small flat wire 10 with high precision.

In some embodiments of the present application, the preheating temperature of the preheating device 310 is greater than or equal to 80 ℃ and less than or equal to 100 ℃. In this embodiment, the flexibility of the wire 20 to be processed cannot be improved when the preheating temperature is too low, and the physical properties of the wire 20 to be processed are easily changed when the preheating temperature is too high. The preheating temperature of the preheating device 310 in this embodiment is greater than or equal to 80 ℃ and less than or equal to 100 ℃ to improve the flexibility of the wire 20 to be processed within a suitable temperature range.

In some embodiments of the present application, the annealing temperature of the second annealing device 340 is greater than or equal to 120 ℃ and less than or equal to 150 ℃. In this embodiment, the annealing temperature of the second annealing device 340 is required to be greater than or equal to 120 ℃ and less than or equal to 150 ℃ to avoid that the annealing is not achieved when the temperature is too high or too low.

In some embodiments of the present application, the size of the die holes is slightly smaller than the size of the wire 20 to be processed passing through the molding apparatus 200, the broadside size of the die holes is 4 μm to 5 μm smaller than the broadside size of the wire to be processed, and the narrow side size of the die holes is 1 μm to 2 μm smaller than the narrow side size of the wire to be processed. In the present embodiment, assuming that the thickness of the wire 20 to be processed after passing through the molding apparatus 200 is T, the tolerance thereof is ±0.002mm, the width thereof is W, and the tolerance thereof is ±0.005mm, the sizes of the die holes may be respectively designed to be T-0.001mm to T-0.002mm, and W-0.004mm to W-0.005mm. For example, the thickness of the wire 20 to be processed after passing through the molding apparatus 200 is 0.2.+ -. 0.002mm and the width is 2.0.+ -. 0.005mm, and then the sizes of the die holes may be designed to be 0.2-0.001mm to 0.2-0.002mm and 2.0-0.004mm to 2.0-0.005mm, respectively.

In some embodiments of the present application, the first calendaring apparatus 241 includes at least a first calendaring die for defining the dimensions of the wire 20 to be processed after calendaring.

In some embodiments of the present application, the second calendaring apparatus 242 includes at least a second calendaring die for defining the dimensions of the wire 20 to be processed after calendaring.

In some embodiments of the present application, the first coating device 231 is coated in a felt coating manner. For example, during painting, the wire 20 to be processed may be disposed between two coating felts, where the two coating felts coat the wire 20 to be processed by continuously adsorbing the lubricant brought by the roller, and the felts are soft, so that even if the two felts are pressed together, the wire 20 to be processed is still not easy to wear when passing between the two felts.

In a specific embodiment of the present application, the first coating device 231, the second coating device 232, and the third coating device 233 may each include a drying mechanism to bake the painted wire 20 to be processed.

In some embodiments of the present application, the baking temperature of the first coating device 231 is greater than or equal to 380 ℃ and less than or equal to 450 ℃. In this way, it is possible to avoid influencing the physical properties of the wire 20 to be processed when the baking temperature of the first coating device 231 is too high, and also to avoid lower processing efficiency when the baking temperature of the first coating device 231 is too low.

In some embodiments of the present application, the baking temperature of the second coating device 232 is greater than or equal to 380 ℃ and less than or equal to 450 ℃, and the baking temperature of the third coating device 233 is greater than or equal to 380 ℃ and less than or equal to 450 ℃. In this way, it is possible to avoid influencing the physical properties of the wire 20 to be processed when the baking temperatures of the second coating device 232 and the third coating device 233 are too high, and it is also possible to avoid lower processing efficiency when the baking temperatures of the second coating device 232 and the third coating device 233 are too low.

In some embodiments of the present application, the apparatus for producing insulated wires may further include a plurality of guide wheels 500, as shown in fig. 1, the guide wheels 500 are used to guide the wire 20 to be processed to a preset apparatus or device, and the number of the guide wheels 500 may be set according to the actual requirements.

While the application has been described with reference to a few specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the application not be limited to the particular embodiments disclosed, but that the application will include all embodiments falling within the scope of the appended claims.

Claims

1. An insulated wire production apparatus, characterized by comprising:

the paying-off device is used for paying off the wire to be processed;

the forming device is arranged at the downstream of the paying-off device and comprises a wire drawing device, a first annealing device, a first coating device and a first calendaring device which are sequentially arranged at the downstream of the paying-off device, wherein the wire drawing device is used for drawing a wire to be processed, the first annealing device is used for annealing the wire to be processed, the first coating device is used for coating and baking the wire to be processed, and the first calendaring device is used for calendaring the wire to be processed;

the shaping device is arranged at the downstream of the shaping device and comprises a preheating device, a lubricating oil coating device, a shaping die and a second annealing device, wherein the preheating device is used for preheating a wire to be processed, the lubricating oil coating device is used for coating lubricating oil on the wire to be processed, the shaping die is used for shaping the wire to be processed, the shaping die comprises a die hole, the wire to be processed is penetrated through the die hole, and the second annealing device is used for annealing the wire to be processed;

and the wire winding device is used for winding the processed wire.

2. The apparatus for producing an insulated wire according to claim 1, wherein the molding apparatus further comprises a second coating apparatus, a second rolling apparatus, and a third coating apparatus, which are disposed downstream of the first rolling apparatus in this order.

3. The apparatus for producing an insulated wire according to claim 1, wherein a preheating temperature of the preheating device is 80 ℃ or more and 100 ℃ or less.

4. The apparatus for producing an insulated wire according to claim 1, wherein an annealing temperature of the second annealing device is 120 ℃ or higher and 150 ℃ or lower.

5. The apparatus for producing an insulated wire according to claim 1, wherein the size of the die hole is slightly smaller than the size of the wire to be processed passing through the molding apparatus, the width dimension of the die hole is smaller than the width dimension of the wire to be processed by 4 μm to 5 μm, and the width dimension of the die hole is smaller than the width dimension of the wire to be processed by 1 μm to 2 μm.

6. The apparatus for producing an insulated wire according to claim 1, wherein the first rolling means includes at least a first rolling die for defining a size of a wire to be processed after rolling.

7. The apparatus for producing an insulated wire according to claim 2, wherein the second rolling means includes at least a second rolling die for defining a size of the wire to be processed after rolling.

8. The apparatus for producing an insulated wire according to claim 1, wherein the first coating means is a felt coating.

9. The apparatus for producing an insulated wire according to claim 1, wherein a baking temperature of the first coating device is 380 ℃ or higher and 450 ℃ or lower.

10. The apparatus for producing an insulated wire according to claim 2, wherein the baking temperature of the second coating device is 380 ℃ or higher and 450 ℃ or lower, and the baking temperature of the third coating device is 380 ℃ or higher and 450 ℃ or lower.