Enameled wire uniform varnishing device

Abstract

The utility model relates to the technical field of varnished wire processing, in particular to a varnished wire uniform varnishing device which comprises a varnishing box which is divided into a varnishing cavity and a drying cavity. Four rotating shafts are arranged in the varnishing cavity, the two rotating shafts on the lower side are driven by a lifting device to vertically move in the varnishing cavity, guide wheels corresponding to the wire feeding holes in a one-to-one mode are rotationally installed on the four rotating shafts, and a varnishing repairing assembly is arranged on the side, facing the drying cavity, in the varnishing cavity and used for varnishing repairing of varnished wires. During threading guiding, the guide wheel is lifted through the lifting device to be located at the opening of the painting cavity, and therefore bare wires can be arranged more conveniently and rapidly; and then the guide wheel descends through the lifting device to press the bare wire downwards, so that the bare wire is immersed in the coating paint for paint dipping, and after paint dipping, the bare wire further penetrates through the paint make-up assembly for paint make-up, so that painting is more balanced.

Description

Technical Field

[0001] The utility model relates to the technical field of enameled wire processing, in particular to a device for uniformly painting enameled wires. Background Art

[0002] Enameled wire is a main type of winding wire, consisting of a conductor and an insulating layer. The conductor is the spiral wire, and the insulating layer is the enameled wire. That is, the bare wire is annealed and softened, then painted multiple times and baked.

[0003] Wire enamel is an extremely important insulating material in electrical engineering. It is directly used for the insulation of live conductors. Therefore, its performance plays a decisive role in the entire coil insulation system. Its coating integrity also determines the excellent insulation effect.

[0004] Enameled wire painting methods are generally categorized into three types: dipping, spraying, and rolling. Spraying involves applying the coating to the bare wire surface using an atomizing nozzle; rolling involves applying the coating by rolling two sets of rollers against each other. Both methods suffer from uneven painting, resulting in dead corners and incomplete painting of certain parts of the bare wire, thus affecting its insulation performance. Dipping, on the other hand, completely immerses the bare wire in the coating, providing the best coating integrity. For example, patent document CN212209047U discloses a uniform and stable enameled wire painting device. Multiple sets of redirecting rollers are arranged within a housing, resulting in a zigzag distribution of the enameled wire within the housing. Dipping the lower side of the wire and drying the upper side interact to ensure uniform painting. However, this patent presents a problem: the layout of the enameled wire. That is, in the initial state, manpower is required to guide the enameled wire through the redirecting roller. The equipment is set up vertically. In order to prevent the lower layer of enameled wire from leaking, the side wall of the lower side of the shell must be sealed and cannot be disassembled. In this way, there is no way to easily allow the enameled wire to pass through the lower side of the redirecting roller.

[0005] To this end, the utility model provides a device for uniformly painting enameled wires, which ensures balanced and stable painting while also making the initial guidance and redirection of the bare wires more convenient. Utility Model Content

[0006] The purpose of the utility model is to solve the problems existing in the prior art and to propose a device for uniformly painting enameled wires.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A device for uniformly painting enameled wires, comprising a painting box, wherein the painting box is divided into a painting chamber and a drying chamber, and a row of wire feeding holes and a row of wire outlet holes are respectively provided on opposite sides of the painting chamber and the drying chamber;

[0009] The painting chamber is provided with four rotating shafts, which are distributed in an inverted trapezoidal shape. The two lower rotating shafts are driven by a lifting device to move vertically in the painting chamber. Guide wheels corresponding to the upper wire holes are rotatably mounted on the four rotating shafts. A paint touch-up component is provided on the side of the rotating shaft facing the drying chamber in the painting chamber for touch-up of the enameled wire.

[0010] A plurality of electric heating plates are evenly distributed in the drying chamber.

[0011] Preferably, the lifting device includes a bracket installed in a vertical sliding manner in the painting chamber, two rotating shafts on the lower side are installed on the bracket, and the bracket is driven to rise and fall by a hydraulic device.

[0012] Preferably, the paint touch-up assembly includes a paint touch-up pump suspended on the side wall of the paint box, the inlet end of the paint touch-up pump is connected to the bottom wall of the paint chamber, and the outlet end is connected to a paint touch-up tube, and the paint touch-up tube is connected to a hollow ring corresponding one-to-one to the upper line hole, and the inner wall of the ring is provided with an atomizing nozzle.

[0013] Preferably, the axis of the collar is flush with the upper wall of the adjacent guide wheel.

[0014] Preferably, the upper wire hole is of open design.

[0015] Preferably, the top wall of the drying chamber is detachable.

[0016] Preferably, a pull-out drawer is provided on the bottom wall of the drying chamber.

[0017] Preferably, an air pump is suspended on the side wall of the drying chamber, and the inlet and outlet of the air pump are both connected to air pipes, and the ends of the two air pipes are respectively inserted into the drying chamber from both sides of the drying chamber.

[0018] Preferably, the communicating portion between the air pipe and the drying chamber is located below the electric heating plate.

[0019] Compared with the prior art, the present invention provides a device for uniformly painting enameled wire, which has the following beneficial effects:

[0020] The specific usage process of this embodiment is as follows:

[0021] 1. When threading and guiding, the guide wheel is raised by the lifting device and positioned at the opening of the painting chamber, making the arrangement of the bare wire more convenient and quick; then the guide wheel is lowered by the lifting device to press the bare wire down, so that the bare wire is immersed in the varnish for painting. After varnishing, the bare wire also passes through the touch-up component for touch-up, making the painting more balanced; after painting, it is baked in the drying chamber to ensure that the varnish covering the surface of the bare wire does not fall off.

[0022] 2. The paint liquid sprayed out during the touch-up process drips back into the paint bag below and is recycled to avoid waste.

[0023] 3. There are multiple electric heating plates in the drying chamber, which are staggered and evenly interspersed between the bare wires. An air pump is suspended on the side wall of the drying chamber. The inlet and outlet of the air pump are connected to air pipes. The ends of the two air pipes are inserted into the drying chamber from both sides of the drying chamber. The hot air in the drying chamber circulates through the air pump, so that the bare wire coating is heated more evenly and the baking effect is better.

[0024] It will be obvious to those skilled in the art; or, it can be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a side axial view of the upper thread hole of the present utility model.

[0026] Figure 2 This is an axial view of the wire outlet side of the present invention after removing the top wall of the drying chamber.

[0027] Figure 3 For the utility model Figure 2 Schematic top view of .

[0028] Figure 4 It is a cross-sectional schematic diagram of the present utility model.

[0029] Figure 5 It is a three-dimensional schematic diagram of the lifting device of the present utility model.

[0030] Figure 6 This is a schematic diagram of a bare wire arrangement frame of the present utility model.

[0031] In the figure: 1. Painting box; 2. Painting chamber; 3. Drying chamber; 4. Guide wheel; 5. Bracket; 6. Paint touch-up pump; 7. Ring; 8. Air pump; 9. Air pipe; 10. Hot plate; 11. Drawer; 12. Bare wire; 13. Gantry; 14. Chuck; 15. Clamping shaft. DETAILED DESCRIPTION

[0032] The following is a combination of the appended examples of the present invention Figure 1-6 , the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] Example 1: To solve the problems existing in the prior art, this embodiment provides a device for uniformly painting enameled wires, including a painting box 1, which is divided into a painting chamber 2 and a drying chamber 3. The painting chamber 2 and the drying chamber 3 are respectively provided with a row of wire feeding holes and wire outlet holes on the opposite sides thereof. The drying chamber 3 is provided with through holes corresponding to the wire outlet holes on the side facing the painting chamber 2, and the diameter of the through holes is larger than the diameter of the bare wire 12.

[0034] The painting chamber 2 is provided with four rotating shafts, which are arranged in an inverted trapezoidal shape. The two lower rotating shafts are driven by a lifting device to move vertically within the painting chamber 2. The lifting device includes a bracket 5 that is vertically slidably mounted within the painting chamber 2. The two lower rotating shafts are mounted on the bracket 5, and the bracket 5 is driven to rise and fall by a hydraulic device. Guide wheels 4 corresponding to the thread holes are rotatably mounted on each of the four rotating shafts.

[0035] A paint touch-up assembly is provided in the painting chamber 2 on the side of the rotating shaft facing the drying chamber 3 for touch-up of the enameled wire; the paint touch-up assembly includes a paint touch-up pump 6 suspended on the side wall of the painting box 1, the inlet end of the paint touch-up pump 6 is connected to the bottom wall of the painting chamber 2, and the outlet end is connected to a paint touch-up pipe, and the paint touch-up pipe is connected to a hollow collar 7 corresponding to the upper wire holes one by one, and the inner wall of the collar 7 is provided with an atomizing nozzle;

[0036] Several electric heating plates 10 are evenly distributed in the drying chamber 3, and the electric heating plates 10 are staggered between the bare wires 12. The top wall of the drying chamber 3 is detachable and is also controlled by a lifting device such as an electric telescopic rod. The top wall of the drying chamber 3 and the bracket 5 rise and fall synchronously.

[0037] The specific usage process of this embodiment is as follows:

[0038] Wire threading guide: The top wall of the drying chamber 3 and the bracket 5 rise, the upper end of the drying chamber 3 opens, and the two rotating shafts on the bottom side rise to above the coating liquid level. The bare wire 12 passes through the upper wire hole and then passes around the corresponding guide wheels 4 in sequence. Then, it passes through the ring 7 and enters the drying chamber 3 through the through hole. It is then passed through the wire outlet hole and wound around the take-up wheel. Then, the top wall of the drying chamber 3 and the bracket 5 descend synchronously. The bare wire 12 is pressed down into the coating by the guide wheels 4 on the two lower rotating shafts for coating.

[0039] Dipping and repainting: The bare wire 12 is continuously pulled out of the paint box 1 by the continuous rotation of the reel, and the bare wire 12 is continuously immersed in the varnish, thereby completing the dipping process; at the same time, the repainting pump 6 is started to draw the varnish into the repainting tube, and then sprayed out from the atomizing nozzle on the inner wall of the ring 7 to perform repainting, thereby ensuring the integrity of the paint and ensuring that the insulation performance of the enameled wire is not affected. In addition, the paint liquid sprayed during the repainting process drips back into the varnish below and is recycled to avoid waste;

[0040] Drying: After the paint dipping and repainting, the bare wire 12 enters the drying chamber 3 and is baked by the electric heating plate 10. The electric heating plate 10 is staggered and evenly interspersed between the bare wires 12, so that the bare wire 12 is evenly heated in the drying chamber 3, so that the paint coating is balanced.

[0041] In this embodiment, a pull-out drawer 11 is provided on the bottom wall of the drying chamber 3. After the bare wire 12 enters the drying chamber 3, the paint-coated wire drips into the drawer 11, which is very convenient for recycling and reuse or cleaning.

[0042] In this embodiment, the axis of the collar 7 is flush with the upper wall of the adjacent guide wheel 4 to avoid scratching the paint coating on the bare wire 12 and causing uneven paint coating.

[0043] In this embodiment, the upper wiring hole is designed to be open, which is convenient for wiring.

[0044] In Example 2, an air pump 8 is suspended on the side wall of the drying chamber 3, and the inlet and outlet of the air pump 8 are both connected to an air pipe 9. The ends of the two air pipes 9 are respectively inserted into the drying chamber 3 from both sides of the drying chamber 3, and the connecting part between the air pipe 9 and the drying chamber 3 is located below the electric heating plate 10; the air pump 8 allows the hot air in the drying chamber 3 to circulate, so that the paint coating of the bare wire 12 is heated more evenly and the baking effect is better.

[0045] Embodiment 3. In this embodiment, a clamping assembly for 12 turns of bare wire of enameled wire is provided, which is used for laying out the wire at the upper wire hole. Most of the traditional bare wire 12 of enameled wire is wound on the wire roller, and the clamping assembly includes a gantry 13. The two columns of the gantry 13 are provided with support rods on the opposite sides. The two support rods are spaced apart. A chuck 14 is sleeved on the two support rods. A spring is provided between the clamping plate and the corresponding column. A clamping shaft 15 is provided on the opposite side of the two chucks 14. When in use, the two chucks 14 are moved to both sides to leak out the gap, and then the static wire roller is placed between the two chucks 14, and then the chuck 14 is released. The clamping shaft 15 is inserted into the hollow of the wire roller, thereby limiting the wire roller, preventing the wire roller from falling off, and maintaining the stability of wire feeding.

[0046] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0048] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A device for uniformly painting enameled wire, characterized in that: The paint box (1) comprises a paint applying box (1), wherein the paint applying box (1) is divided into a paint applying chamber (2) and a drying chamber (3), and a row of threading holes and threading holes are respectively provided on the opposite sides of the paint applying chamber (2) and the drying chamber (3); The painting chamber (2) is provided with four rotating shafts, which are arranged in an inverted trapezoidal shape, wherein the two rotating shafts at the lower side are driven by a lifting device to move vertically in the painting chamber (2), and guide wheels (4) corresponding to the upper wire holes are rotatably mounted on the four rotating shafts. A paint touch-up component is provided on the side of the rotating shaft facing the drying chamber (3) in the painting chamber (2) for touch-up of the enameled wire; A plurality of electric heating plates (10) are evenly distributed in the drying chamber (3).

2. The device for uniformly painting enameled wire according to claim 1, characterized in that: The lifting device comprises a bracket (5) which is vertically slidably mounted in the painting chamber (2), two rotating shafts on the lower side are mounted on the bracket (5), and the bracket (5) is driven by a hydraulic device to be lifted and lowered.

3. The device for uniformly painting enameled wire according to claim 1, characterized in that: The paint touch-up assembly comprises a paint touch-up pump (6) suspended on the side wall of the paint box (1); the inlet end of the paint touch-up pump (6) is connected to the bottom wall of the paint chamber (2); the outlet end is connected to a paint touch-up tube; the paint touch-up tube is connected to a hollow collar (7) corresponding to the upper line holes one by one; and the inner wall of the collar (7) is provided with an atomizing nozzle.

4. The device for uniformly painting enameled wire according to claim 3, characterized in that: The axis of the collar (7) is flush with the upper wall of the adjacent guide wheel (4).

5. The device for uniformly painting enameled wire according to claim 1, characterized in that: The upper wire hole is of open design.

6. The device for uniformly painting enameled wire according to claim 1, characterized in that: The top wall of the drying chamber (3) is detachable.

7. The device for uniformly painting enameled wire according to claim 1, characterized in that: The bottom wall of the drying chamber (3) is provided with a pull-out drawer (11).

8. The device for uniformly painting enameled wire according to claim 1, characterized in that: An air pump (8) is suspended on the side wall of the drying chamber (3); the inlet and outlet of the air pump (8) are both connected to air pipes (9); and the ends of the two air pipes (9) are respectively inserted into the drying chamber (3) from both sides of the drying chamber (3).

9. The device for uniformly painting enameled wire according to claim 8, characterized in that: The communicating portion between the air pipe (9) and the drying chamber (3) is located below the electric heating plate (10).

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