Device for online detection of paint film thickness of enameled wire

Abstract

The utility model discloses a device for on-line detection of the thickness of a paint film of an enameled wire, which comprises a base, the top of the base is provided with a box body, and an inner cavity of the box body is rotatably provided with a first roller body; in the production process of the enameled wire body, the enameled wire body can be pulled by the winding mechanism or the conveying mechanism, different positions of the surface of the enameled wire body can be in continuous contact with the surface of the metal conductive ring in the moving process of the enameled wire body, and if the thickness of a paint film on the surface of the enameled wire body changes, the resistance of the enameled wire body also changes; the paint film can be detected by the precision resistance tester, and the thickness of the paint film can be effectively speculated through the changed resistance; according to the detection mode, the thickness of the paint film on the surface of the enameled wire body can be detected online in real time, normal production and processing of the enameled wire body cannot be affected, the detection effect is improved, and meanwhile the production efficiency of the enameled wire is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of enameled wires, in particular to a device for on-line detecting the film thickness of enameled wires. Background Art

[0002] Enameled wire is a main variety of winding wires, which consists of a conductor and an insulating layer. After the bare wire is annealed and softened, it is coated with paint and baked multiple times. The film thickness of the enameled wire is one of the detection standards for the qualification of enameled wires.

[0003] Chinese Patent No.: CN215003519U, proposes a film thickness detector, including a film thickness meter body. A detection contact block is installed at the lower end of the film thickness meter body. A U-shaped plate is installed at the lower right part of the film thickness meter body. A moving plate is arranged inside the U-shaped plate, and the moving plate is slidably connected to the inner wall of the U-shaped plate. A connecting rod is installed at the lower end of the U-shaped plate, and the connecting rod passes through the U-shaped plate and is fixedly connected to the bottom plate. A first spring is installed at the upper end of the moving plate, and the first spring is fixedly connected to the lower end of the film thickness meter body. A through hole is opened in the middle of the bottom plate corresponding to the position of the detection contact block. A hollow block is installed at the lower left part of the film thickness meter body. A groove is opened on the left inner wall of the hollow block. A limiting plate is arranged inside the hollow block, and the limiting plate is slidably connected to the inner wall of the hollow block. A fixing rod is installed at the lower end of the limiting plate, and the fixing rod passes through the lower end of the hollow block and is fixedly connected to the bottom plate. The utility model protects the detection contact block from being damaged by hitting the ground or hard objects.

[0004] There are still some defects in the above patent. For example, although the purpose of protecting the detection contact block is achieved, it is impossible to detect the film thickness of the enameled wire in real time and online. The enameled wire moves continuously during the production process, and it is impossible to detect the film thickness on its surface with high density, which reduces the detection effect. Therefore, we need to propose a device for on-line detecting the film thickness of enameled wires. Content of the Utility Model

[0005] The purpose of the utility model is to provide a device for on-line detecting the film thickness of enameled wires, which has the advantage of being able to detect the film thickness of enameled wires in real time and online, so as to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A device for on-line detecting the film thickness of enameled wires, including a base, a box body is installed on the top of the base, a first roller is rotatably installed in the inner cavity of the box body, and a second roller is installed above the first roller inside the box body;

[0007] An enameled wire body is slidably attached between the first roller and the second roller;

[0008] A first contact block is slidably attached to the bottom of the first roller, and a second contact block is slidably attached to the top of the second roller;

[0009] Support components are installed at both the upper and lower ends inside the box body, and one ends of the support components away from the inner wall of the box body are respectively connected to the surfaces of the first contact block and the second contact block;

[0010] A power supply component and a detection component are respectively installed on the top of the base. The power supply component is electrically connected to the second contact block, and the detection component is electrically connected to the first contact block.

[0011] Preferably, through holes are formed on both sides of the box body, insulating sleeves are embedded inside the through holes, and both ends of the enameled wire body respectively penetrate through the box body through the insulating sleeves and extend to the outside of the box body.

[0012] Preferably, insulating tubes are installed on both sides of the box body and outside the insulating sleeves, and the enameled wire body extends into the insulating tubes.

[0013] Preferably, a bracket is installed at the bottom of the insulating tube, and the bottom of the bracket is connected to the top of the base.

[0014] Preferably, the support component includes a sleeve. The sleeves are respectively installed at the upper and lower ends inside the box body. Springs are installed inside the sleeves. One ends of the springs close to the enameled wire body are provided with ejector rods. The ends of the ejector rods away from the springs respectively slide through the sleeves and extend to the outside of the sleeves and are respectively connected to the surfaces of the first contact block and the second contact block.

[0015] Preferably, the power supply component includes a power supply. The power supply is installed on the top of the base. The positive electrode of the power supply is electrically connected to a switch. One side of the switch is electrically connected to a first wire. One end of the first wire slides through the box body and extends to the inside of the box body and is electrically connected to one side of the first contact block.

[0016] Preferably, the detection component includes a precision resistance tester. The precision resistance tester is installed on the top of the base. One end of the second contact block is electrically connected to a second wire. One end of the second wire slides through the box body and extends to the outside of the box body. The negative electrode of the power supply is electrically connected to a third wire. One end of the third wire away from the power supply and one end of the second wire away from the second contact block are connected to the detection end of the precision resistance tester.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] 1. During the production process of the enameled wire body, the enameled wire body will be pulled by a winding mechanism or a conveying mechanism. During the movement of the enameled wire body, different positions on its surface will continuously contact the surface of the metal conductive ring. If the thickness of the paint film on the surface of the enameled wire body changes, its resistance will also change, which can be detected by a precision resistance tester. Through the changed resistance, the thickness of the paint film can be effectively inferred.

[0019] 2. The detection method in the present utility model can realize real-time on-line detection of the thickness of the paint film on the surface of the enameled wire body, without affecting the normal production and processing of the enameled wire body. While improving the detection effect, it also improves the production efficiency of the enameled wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the present utility model;

[0021] Figure 2 is the present utility model Figure 1 a partial enlarged schematic view of area A in;

[0022] Figure 3 is a sectional structural schematic diagram of the box body of the present utility model;

[0023] Figure 4 is a rear view structural schematic diagram of the first roller body of the present utility model;

[0024] Figure 5 is a sectional structural schematic diagram of the sleeve of the present utility model.

[0025] In the figure: 1. Base; 2. Box body; 3. First roller body; 4. Second roller body; 5. Enameled wire body; 6. First contact block; 7. Second contact block; 8. Insulating sleeve; 9. Insulating tube; 10. Bracket; 11. Sleeve; 12. Spring; 13. Thumb rod; 14. Power supply; 15. Switch; 16. First wire; 17. Precision resistance tester; 18. Third wire; 19. Metal conductive ring; 20. Second wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1 - 5, the utility model provides a technical solution: a device for on-line detecting the film thickness of enameled wire, including a base 1, on the top of the base 1, a box body 2 is installed, inside the box body 2, a first roller 3 is rotatably installed, and inside the box body 2 and above the first roller 3, a second roller 4 is installed; between the first roller 3 and the second roller 4, an enameled wire body 5 is slidably attached; on the surfaces of both the first roller 3 and the second roller 4, metal conductive rings 19 are sleeved, the surface of the enameled wire body 5 is in contact with the surface of the metal conductive ring 19, and both the first roller 3 and the second roller 4 are coated with insulating coatings.

[0028] Wherein, at the bottom of the first roller 3, a first contact block 6 is slidably attached, and at the top of the second roller 4, a second contact block 7 is slidably attached; on the surfaces of both the first contact block 6 and the second contact block 7, they are in contact with the surface of the metal conductive ring 19.

[0029] Furthermore, on both sides of the box body 2, through holes are provided, inside the through holes, insulating sleeves 8 are embedded, and both ends of the enameled wire body 5 respectively pass through the box body 2 through the insulating sleeves 8 and extend to the outside of the box body 2. By providing the insulating sleeves 8, when the enameled wire body 5 passes through the box body 2, it is used to guide and protect the enameled wire body 5 to prevent friction between the enameled wire body 5 and the box body 2.

[0030] On both sides of the box body 2 and outside the insulating sleeves 8, insulating tubes 9 are installed, and the enameled wire body 5 extends into the insulating tubes 9. At the bottom of the insulating tube 9, a bracket 10 is installed, and the bottom of the bracket 10 is connected to the top of the base 1. By providing the insulating tubes 9, it is used to protect the outside of the enameled wire body 5, and by providing the bracket 10, it is used to support the insulating tube 9.

[0031] Specifically, at the upper and lower ends inside the box body 2, support components are installed, and the ends of the support components away from the inner wall of the box body 2 are respectively connected to the surfaces of the first contact block 6 and the second contact block 7; the support components include sleeves 11, the sleeves 11 are respectively installed at the upper and lower ends inside the box body 2, inside the sleeves 11, springs 12 are installed, at the end of the spring 12 close to the enameled wire body 5, a push rod 13 is installed, and the ends of the push rod 13 away from the spring 12 respectively slide through the sleeves 11 and extend to the outside of the sleeves 11 and are respectively connected to the surfaces of the first contact block 6 and the second contact block 7.

[0032] Through the reaction force generated by the spring 12, the push rod 13 is continuously pushed, and the push rod 13 pushes the first contact block 6 and the second contact block 7 to be in precise contact with the metal conductive ring 19.

[0033] At the top of the base 1, a power supply component and a detection component are respectively installed. The power supply component is electrically connected to the second contact block 7. The power supply component includes a power supply 14, which is installed at the top of the base 1. The positive electrode of the power supply 14 is electrically connected to a switch 15. One side of the switch 15 is electrically connected to a first wire 16. One end of the first wire 16 slidably penetrates through the box body 2 and extends to the inside of the box body 2 and is electrically connected to one side of the first contact block 6. By providing the switch 15, it is used to control the power supply and power-off of the power supply 14.

[0034] Furthermore, the detection component is electrically connected to the first contact block 6. The detection component includes a precision resistance tester 17, which is installed at the top of the base 1. One end of the second contact block 7 is electrically connected to a second wire 20. One end of the second wire 20 slidably penetrates through the box body 2 and extends to the outside of the box body 2. The negative electrode of the power supply 14 is electrically connected to a third wire 18. The end of the third wire 18 far from the power supply 14 and the end of the second wire 20 far from the second contact block 7 are connected to the detection end of the precision resistance tester 17.

[0035] Among them, the precision resistance tester 17 is a precision resistance tester 17 with high precision and wide range, and is controlled by a high-performance microprocessor. It can measure resistances from 0.1 μΩ to 110 MΩ, with a maximum display of 200,000 digits, and can precisely measure the resistance of the circuit.

[0036] Specifically, when the switch 15 is turned on, the positive electrode of the power supply 14 discharges, and the current passes through the first wire 16, the first contact block 6, the metal conductive ring 19 on the first roller 3, the enameled wire body 5, the metal conductive ring 19 on the second roller 4, the second contact block 7, the second wire 20, the precision resistance tester 17, and the third wire 18, and finally connects to the negative electrode of the power supply 14 to form a complete circuit. In this circuit, the precision resistance tester 17 is connected in series with the circuit, and the precision resistance tester 17 can detect the resistance in the circuit.

[0037] Among them, during the production process of the enameled wire body 5, the enameled wire body 5 will be pulled by a winding mechanism or a conveying mechanism. During the movement of the enameled wire body 5, different positions on its surface will continuously contact the surface of the metal conductive ring 19. If the thickness of the paint film on the surface of the enameled wire body 5 changes, its resistance will also change, and it will be detected by the precision resistance tester 17. On the contrary, during the movement of the enameled wire body 5, its resistance is continuously detected, and the resistance data is edited into a peak-shaped graph by a computer, so as to intuitively measure and reflect the thickness of the paint film on the surface of the enameled wire body 5.

[0038] The above detection method can realize the real-time online detection of the paint film thickness on the surface of the enameled wire body 5, without affecting the normal production and processing of the enameled wire body 5. While improving the detection effect, it also improves the production efficiency of the enameled wire.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An apparatus for on-line detecting the film thickness of enameled wire, comprising a base (1), characterized in that: A box body (2) is installed on the top of the base (1). A first roller body (3) is rotatably installed in the inner cavity of the box body (2). A second roller body (4) is installed inside the box body (2) and above the first roller body (3). An enameled wire body (5) is slidably attached between the first roller body (3) and the second roller body (4). A first contact block (6) is slidably attached to the bottom of the first roller body (3), and a second contact block (7) is slidably attached to the top of the second roller body (4). Support components are installed at both the upper and lower ends inside the box body (2). The ends of the support components away from the inner wall of the box body (2) are respectively connected to the surfaces of the first contact block (6) and the second contact block (7). A power supply component and a detection component are respectively installed on the top of the base (1). The power supply component is electrically connected to the second contact block (7), and the detection component is electrically connected to the first contact block (6).

2. The device for on-line detecting the film thickness of the enameled wire according to claim 1, characterized in that: Through holes are formed on both sides of the box body (2). Insulating sleeves (8) are embedded inside the through holes. Both ends of the enameled wire body (5) respectively pass through the box body (2) through the insulating sleeves (8) and extend to the outside of the box body (2).

3. The device for on-line detecting the film thickness of the enameled wire according to claim 2, characterized in that: Insulating tubes (9) are installed on both sides of the box body (2) and outside the insulating sleeves (8). The enameled wire body (5) extends into the insulating tubes (9).

4. The device for on-line detecting the film thickness of the enameled wire according to claim 3, wherein: A bracket (10) is installed at the bottom of the insulating tube (9). The bottom of the bracket (10) is connected to the top of the base (1).

5. The device for on-line detecting the film thickness of the enameled wire according to claim 1, characterized in that: The support component includes sleeves (11). The sleeves (11) are respectively installed at the upper and lower ends inside the box body (2). Springs (12) are installed inside the sleeves (11). One ends of the springs (12) close to the enameled wire body (5) are installed with ejector rods (13). The ends of the ejector rods (13) away from the springs (12) respectively slide through the sleeves (11) and extend to the outside of the sleeves (11) and are respectively connected to the surfaces of the first contact block (6) and the second contact block (7).

6. The device for on-line detecting the film thickness of the enameled wire according to claim 1, wherein: The power supply component includes a power supply (14). The power supply (14) is installed on the top of the base (1). The positive pole of the power supply (14) is electrically connected to a switch (15). One side of the switch (15) is electrically connected to a first wire (16). One end of the first wire (16) slides through the box body (2) and extends into the box body (2) and is electrically connected to one side of the first contact block (6).

7. The device for on-line detecting the film thickness of the enameled wire according to claim 6, wherein: The detection component includes a precision resistance tester (17). The precision resistance tester (17) is installed on the top of the base (1). One end of the second contact block (7) is electrically connected to a second wire (20). One end of the second wire (20) slides through the box body (2) and extends to the outside of the box body (2). The negative pole of the power supply (14) is electrically connected to a third wire (18). The end of the third wire (18) away from the power supply (14) and the end of the second wire (20) away from the second contact block (7) are connected to the detection end of the precision resistance tester (17).

Images