Multi-layer composite enameled wire and painting device thereof

Abstract

The utility model discloses a multilayer composite enameled wire and a painting device thereof, the multilayer composite enameled wire comprises a copper wire core (1), the surface of the copper wire core (1) is provided with a primer layer (2), a middle layer (3) and a finishing coat layer (4) from inside to outside in sequence, the primer layer (2) is formed by compounding 12-14 high-toughness polyurethane layers with the same thickness, the thickness of the primer layer (2) is 12-28 microns, and the thickness of the finishing coat layer (4) is 12-28 microns. The middle layer (3) is formed by compounding 8-10 thermosetting resin layers with the same thickness, the thickness of the middle layer (3) is 8-20 microns, the finish paint layer (4) is formed by compounding 4-6 epoxy resin layers with the same thickness, and the thickness of the finish paint layer (4) is 4-12 microns; and the high-toughness polyurethane layer, the thermosetting resin layer and the epoxy resin layer are formed by independently baking. According to the utility model, the insulating property of the enameled wire can be improved, and the painting effect of the enameled wire is improved while the painting cost of the enameled wire is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of multilayer composite enameled wire, in particular to a kind of multilayer composite enameled wire and its lacquering device. BACKGROUND

[0002] Traditional enameled wire is limited by the lacquering process of enameled machine, so it needs to be coated with paint film on the surface of enameled wire by multiple enameled machines in turn, thereby greatly increasing the processing cost of enameled wire. In view of this defect, some manufacturers have improved the structure of enameled machine, that is, by installing multiple coating mechanisms at the front end of the enameled machine, each coating mechanism can be used for coating an insulating paint layer independently, and the coating mechanisms are staggered left and right to prevent mutual obstruction. Although this coating mechanism can realize sequential coating of different insulating paint layers by a single enameled machine, the length of each coating roller and the number of paint slots are fixed, so manufacturers cannot arbitrarily adjust the number of coating passes and the thickness of different paint layers, thereby reducing the lacquering effect on enameled wire.

[0003] On the other hand, since the conventional installation method of coating roller is to directly fix the coating roller on the enameled frame through a bearing and connect a driving motor through a coupling, under the limitation of this structure, it is also difficult for manufacturers to replace the coating roller based on the paint film structure on the surface of enameled wire, that is, it increases the difficulty of controlling the thickness of the paint film on the surface of enameled wire. Under the above limitation, it is difficult for manufacturers to select the best paint film thickness through experiments, and it is also difficult to adjust the thickness of the paint film on the surface of enameled wire based on the physical and chemical properties of enameled wire.

[0004] Therefore, the existing enameled wire cannot simultaneously have good insulation performance and low processing cost. SUMMARY

[0005] The purpose of the utility model is to provide a kind of multilayer composite enameled wire. It can improve the insulation performance of enameled wire. At the same time, a lacquering device is provided, which can reduce the lacquering cost of enameled wire and improve its lacquering effect.

[0006] The technical scheme of the utility model: a kind of multilayer composite enameled wire, including copper wire core, copper wire core surface is sequentially provided with primer layer, intermediate layer and finish layer from inside to outside, the primer layer is composed of 12-14 layers of high-toughness polyurethane layer with the same thickness, the thickness of primer layer is 12-28 μm, the intermediate layer is composed of 8-10 layers of thermosetting resin layer with the same thickness, the thickness of intermediate layer is 8-20 μm, the finish layer is composed of 4-6 layers of epoxy resin layer with the same thickness, the thickness of finish layer is 4-12 μm;The high-toughness polyurethane layer, thermosetting resin layer and epoxy resin layer are all separately baked.

[0007] The paint coating device is used for coating the surface paint film of the multilayer composite enameled wire, and comprises a paint coating frame, three groups of paint coating roller groups arranged side by side on the paint coating frame and used for coating the primer layer, the intermediate layer and the topcoat layer respectively, and a plurality of paint coating rollers arranged coaxially and connected end to end.

[0008] In the paint coating device, the mounting assembly comprises a split upper mounting block and a lower mounting block, the middle portions of the upper mounting block and the lower mounting block are formed with rotating openings for connecting the paint coating rollers, one end of the upper mounting block and the lower mounting block is hingedly connected, and the other end of the upper mounting block and the lower mounting block is detachably connected, and the two ends of the paint coating roller are connected to the rotating openings through copper sleeves.

[0009] In the paint coating device, one end of the lower mounting block is rotatably connected with a threaded rod, the upper mounting block and the lower mounting block are each provided with a U-shaped groove matched with the threaded rod, the end portion of the threaded rod passes through the U-shaped groove and is connected with a screw cap, and the screw cap is used for pressing and limiting the lower mounting block and the upper mounting block after being screwed.

[0010] In the paint coating device, the paint coating sleeve is slidably connected to the paint coating roller, and the two ends of the paint coating sleeve are fixedly connected to the paint coating roller through set screws.

[0011] In the paint coating device, the outer portion of each paint coating roller is provided with a paint groove, the paint grooves in the same paint coating roller group are communicated with each other, one side of the paint groove is provided with a felt frame, and the felt frame is placed with felt.

[0012] In the paint coating device, the felt frame is formed with a mounting strip on the side close to the paint coating roller, the mounting strip is detachably connected with a stop block, the paint coating sleeve is slidably connected to the paint coating roller, and the stop block is located on the two sides of the paint coating sleeve and is used for transversely limiting the paint coating sleeve.

[0013] In the paint coating device, the mounting strip is intermittently provided with a plurality of clamping grooves, one end of the stop block is connected with a C-shaped mounting foot, the mounting foot is buckled and connected in the clamping groove and is screwed to the mounting strip.

[0014] In the paint coating device, the driving mechanism comprises a driving motor fixed to the paint coating frame, and the outer portion of the driving motor is connected to the paint coating roller through a gear transmission mechanism.

[0015] Compared with the prior art, the paint coating device has the following characteristics:

[0016] (1) The structure of the multilayer composite enameled wire is limited, so that the insulation performance of the enameled wire can be effectively improved, and the adhesion stability of the primer layer, the intermediate layer and the topcoat layer after being coated in sequence can be ensured.

[0017] (2) On the basis of the multi-layer composite enameled wire, through the structure limitation of the painting device, the manufacturer can control the painting path number of the enameled wire on each painting roller group by replacing the painting sleeve of different painting roller groups, thereby realizing the thickness adjustment of the primer layer, the intermediate layer and the topcoat layer, improving the painting effect and effectively reducing the painting cost;

[0018] (3) Through the structure limitation of the painting roller and the mounting assembly, on the one hand, the length and weight of each painting roller can be shortened, thereby facilitating the mounting and taking of the operating personnel, and on the other hand, the operating personnel can directly unlock and open the upper mounting block to mount and take the painting roller during operation, thereby effectively reducing the mounting and taking difficulty of the painting roller; through the structure cooperation of the upper mounting block, the lower mounting block and the copper sleeve, the rotation fluency of the painting roller after mounting can be improved, thereby ensuring the painting effect;

[0019] (4) Through the structure cooperation of the mounting strip and the stopper, the painting sleeve can be transversely limited after positioning, thereby on the one hand, preventing the painting sleeve from moving transversely with the painting roller during use, i.e. ensuring the positioning accuracy of the painting sleeve; on the other hand, the mounting accuracy of the painting roller is also reduced after the positioning of the painting sleeve, so that the manufacturer does not need to adjust the transverse position of the painting roller during each mounting, and a gap is left for the smooth mounting and taking of the painting roller, i.e. further facilitating the mounting and taking operation of the operating personnel;

[0020] Therefore, the enameled wire with the structure can improve the insulation performance of the enameled wire, and improve the painting effect while reducing the painting cost of the enameled wire. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the multi-layer composite enameled wire;

[0022] Figure 2 is a top view of the painting device in embodiment 2;

[0023] Figure 3 is a connection schematic view of the painting roller and the mounting assembly;

[0024] Figure 4 is a top view of the painting device in embodiment 3;

[0025] Figure 5 is Figure 4 is an enlarged view of A of

[0026] The marks in the drawings are: 1-copper core, 2-primer layer, 3-intermediate layer, 4-topcoat layer, 5-painting frame, 6-painting roller, 7-painting sleeve, 8-upper mounting block, 9-lower mounting block, 10-copper sleeve, 11-threaded rod, 12-U-shaped groove, 13-rotary cover, 14-painting groove, 15-felt frame, 16-mounting strip, 17-stop block, 18-clamping groove, 19-mounting foot. DETAILED DESCRIPTION

[0027] The utility model will be further explained in connection with the drawings and examples, but it is not as the basis for limiting the utility model.

[0028] Example 1. A multi-layer composite enameled wire, which is composed as shown in Figure 1 The copper core 1 is provided with a primer layer 2, an intermediate layer 3 and a topcoat layer 4 from inside to outside on the surface, the primer layer 2 is composed of 12-14 layers of high-toughness polyurethane layers with the same thickness, the thickness of the primer layer 2 is 12-28 μm, the intermediate layer 3 is composed of 8-10 layers of thermosetting resin layers with the same thickness, the thickness of the intermediate layer 3 is 8-20 μm, the topcoat layer 4 is composed of 4-6 layers of epoxy resin layers with the same thickness, the thickness of the topcoat layer 4 is 4-12 μm; the high-toughness polyurethane layer, the thermosetting resin layer and the epoxy resin layer are all formed by separately baking the enameled wire after coating with insulating paint.

[0029] The utility model can improve the linking effect of each paint layer and the insulation performance of the whole paint film by limiting the paint material and thickness of the primer layer 2, the intermediate layer 3 and the topcoat layer 4. The paint film can also improve the adhesive strength by separately baking each insulating single layer, thereby preventing the stability problem caused by the excessive thickness of the paint film.

[0030] Example 2. A painting device, which is composed as shown in Figures 2-3 The painting device is used for coating the surface paint film of the multi-layer composite enameled wire in example 1; the painting device comprises a painting frame 5, three groups of painting roller groups are arranged side by side on the painting frame 5, and the three groups of painting roller groups are respectively used for coating the primer layer 2, the intermediate layer 3 and the topcoat layer 4; the painting roller group comprises a plurality of split painting rollers 6, the painting rollers 6 are coaxially arranged and connected end to end, the painting rollers 6 are all provided with painting sleeves 7, the painting sleeves 7 are provided with a plurality of paint immersion grooves for coating paint on the surface of the enameled wire, the two ends of each painting roller 6 are rotatably connected to the painting frame 5 through a mounting assembly, and the painting roller 6 of one of the two ends is externally connected with a driving mechanism.

[0031] The mounting assembly comprises a split upper mounting block 8 and a lower mounting block 9, the middle part of the upper mounting block 8 and the lower mounting block 9 is formed with a rotating port for connecting the paint roller 6, one end of the upper mounting block 8 and the lower mounting block 9 is hinged to each other, and the other end of the upper mounting block 8 and the lower mounting block 9 is detachably connected, and the two ends of the paint roller 6 are connected to the rotating port through the copper sleeve 10.

[0032] One end of the lower mounting block 9 is rotatably connected with a threaded rod 11, and the upper mounting block 8 and the lower mounting block 9 are each provided with a U-shaped groove 12 matched with the threaded rod 11, the end of the threaded rod 11 passes through the U-shaped groove 12 and is connected with a screw cap 13, and the screw cap 13 is used for extruding and limiting the lower mounting block 9 and the upper mounting block 8 after being screwed.

[0033] The upper paint sleeve 7 is slidably connected to the paint roller 6, and the two ends of the upper paint sleeve 7 are fixedly connected to the paint roller 6 through the set screws.

[0034] Each paint roller 6 is provided with a paint groove 14 on the outside, and the paint grooves 14 in the same paint roller group are connected to each other through connecting pipes, and ball valves or plugs can be arranged on the connecting pipes according to needs, so as to block the connecting pipes, and the paint groove 14 is provided with a felt holder 15 on one side, and the felt holder 15 is placed with felt.

[0035] The driving mechanism comprises a driving motor fixed on the paint stand 5, and the driving motor is connected to the paint roller 6 through a gear transmission mechanism.

[0036] The paint device of the embodiment is further limited in structure based on the structure of the enameled wire of the embodiment 1, so that the surface of the copper wire core 1 can be coated with multiple layers of high-toughness polyurethane layer, heat-set resin layer and epoxy resin layer in sequence when in use, and the paint layer is baked separately after each coating, so as to realize the paint film coating on the surface of the enameled wire. On this basis, the operating personnel can also adjust the paint coating number and the overall thickness of each paint layer by replacing the upper paint sleeve 7 on each paint roller 6, so as to improve the forming effect of the paint film.

[0037] When the operating personnel needs to replace the upper paint sleeve 7, the operating personnel only needs to loosen the screw cap 13 at both ends of the corresponding paint roller 6 and rotate the threaded rod 11, so as to release the extrusion limiting of the upper mounting block 8. Then, the upper mounting block 8 is opened by rotating, and the paint roller 6 is taken out together with the copper sleeve 10 at both ends, so that the paint roller 6 can be quickly disassembled and replaced, and the upper paint sleeve 7 can be replaced. After replacing the upper paint sleeve 7, the operating personnel inserts the paint roller 6 back to the original position in the same way, and clamps the upper mounting block 8 by using the threaded rod 11 and the screw cap 13, so that the upper mounting block 8 can extrude and limit the copper sleeve 10 after clamping, so as to ensure the stable rotation of the paint roller 6 relative to the copper sleeve 10 and improve the rotation fluency.

[0038] Embodiment 3. A paint device, the structure is as follows Figures 4-5As shown, the painting device is used for coating the surface paint film of the multi-layer composite enameled wire in Example 1; the painting device comprises a painting frame 5, three groups of painting roller groups are arranged side by side on the painting frame 5, and the three groups of painting roller groups are respectively used for coating the primer layer 2, the intermediate layer 3 and the topcoat layer 4; the painting roller group comprises a plurality of split painting rollers 6, the painting rollers 6 are coaxially arranged and connected end to end, the painting roller 6 is provided with a painting sleeve 7, the painting sleeve 7 and the painting roller 6 are key connected, a plurality of paint dipping grooves are arranged on the painting sleeve 7 and used for coating paint on the surface of the enameled wire, and the two ends of each painting roller 6 are rotatably connected to the painting frame 5 through a mounting assembly, and the painting roller 6 of one of the two ends is externally connected with a driving mechanism.

[0039] The mounting assembly comprises a split upper mounting block 8 and a lower mounting block 9, the middle parts of the upper mounting block 8 and the lower mounting block 9 form rotating openings for connecting the painting roller 6, one end of the upper mounting block 8 and the lower mounting block 9 are hingedly connected, and the other end of the upper mounting block 8 and the lower mounting block 9 are detachably connected, and the two ends of the painting roller 6 are connected to the rotating opening through a copper sleeve 10.

[0040] One end of the lower mounting block 9 is rotatably connected with a threaded rod 11, the upper mounting block 8 and the lower mounting block 9 are both provided with a U-shaped groove 12 matched with the threaded rod 11, the end of the threaded rod 11 passes through the U-shaped groove 12 and is connected with a screw cap 13, and the screw cap 13 is used for extruding and limiting the lower mounting block 9 and the upper mounting block 8 after being screwed.

[0041] The outer part of each painting roller 6 is provided with a paint groove 14, the paint grooves 14 in the same painting roller group are communicated with each other through a connecting pipe, a ball valve or a plug can be arranged on the connecting pipe according to the need, so as to block the connecting pipe, and a felt frame 15 is arranged on one side of the paint groove 14, and the felt frame 15 is placed with felt.

[0042] The felt frame 15 forms a mounting strip 16 on the side close to the painting roller 6, a nylon material stopper 17 is detachably connected to the mounting strip 16, and the shape of the stopper 17 is adjusted on site according to the position of the painting sleeve 7; the painting sleeve 7 is slidably connected to the painting roller 6, and the stopper 17 is located on both sides of the painting sleeve 7 and used for limiting the painting sleeve 7 in the transverse direction.

[0043] A plurality of clamping grooves 18 are distributed on the mounting strip 16 at intervals, one end of the stopper 17 is connected with a C-shaped mounting foot 19, the mounting foot 19 is made of metal material, the mounting foot 19 is buckled and connected in the clamping groove 18 and is screw-connected and fixed on the mounting strip 16 together with the stopper 17.

[0044] The driving mechanism comprises a driving motor fixed on the painting frame 5, and the driving motor is connected with the painting roller 6 through a gear transmission mechanism.

[0045] Compared with the embodiment 2, the embodiment can ensure the positioning accuracy of the painting sleeve 7, so that the painting sleeve 7 cannot move axially with the painting roller 6, on the one hand, and on the other hand, when the operating personnel installs or removes the painting roller 6, the operating personnel does not need to adjust the transverse position of the painting roller 6 based on the painting sleeve 7, that is, the operating personnel is facilitated to install or remove the painting roller 6, and sufficient installation clearance is left for the installation or removal operation of the painting roller 6.

Claims

1. A multi-layer composite enameled wire, characterized in that: The invention comprises a copper wire core (1), wherein a primer layer (2), an intermediate layer (3) and a topcoat layer (4) are sequentially provided on the surface of the copper wire core (1) from the inside to the outside, wherein the primer layer (2) is composited by 12 to 14 layers of high-toughness polyurethane layers of the same thickness, and the thickness of the primer layer (2) is 12 to 28 μm, the intermediate layer (3) is composited by 8 to 10 layers of thermosetting resin layers of the same thickness, and the thickness of the intermediate layer (3) is 8 to 20 μm, the topcoat layer (4) is composited by 4 to 6 layers of epoxy resin layers of the same thickness, and the thickness of the topcoat layer (4) is 4 to 12 μm; and the high-toughness polyurethane layer, the thermosetting resin layer and the epoxy resin layer are all baked separately.

2. Painting device, characterized in that: The painting device is used to apply a surface paint film to the multi-layer composite enameled wire according to claim 1; the painting device includes a painting rack (5), and three groups of paint rollers are arranged side by side on the painting rack (5), and the three groups of paint rollers are used to apply the primer layer (2), the intermediate layer (3) and the topcoat layer (4) respectively; the paint roller group includes a plurality of split paint rollers (6), and each paint roller (6) is coaxially arranged and connected end to end, and each paint roller (6) is provided with a paint sleeve (7), and both ends of each paint roller (6) are rotatably connected to the painting rack (5) through an installation component, and one of the paint rollers (6) is externally connected to a driving mechanism.

3. The painting device according to claim 2, characterized in that: The mounting assembly comprises a split upper mounting block (8) and a lower mounting block (9), wherein a rotation port for connecting a paint roller (6) is formed in the middle of the upper mounting block (8) and the lower mounting block (9), one end of the upper mounting block (8) and the lower mounting block (9) are hinged to each other, and the other end of the upper mounting block (8) and the lower mounting block (9) are detachably connected, and both ends of the paint roller (6) are connected to the rotation port via a copper sleeve (10).

4. The painting device according to claim 3, characterized in that: One end of the lower mounting block (9) is rotatably connected to a threaded rod (11); the upper mounting block (8) and the lower mounting block (9) are both provided with a U-shaped groove (12) that matches the threaded rod (11); the end of the threaded rod (11) passes through the U-shaped groove (12) and is connected to a rotary cover (13); the rotary cover (13) is used to squeeze and limit the lower mounting block (9) and the upper mounting block (8) after being tightened.

5. The painting device according to claim 2, characterized in that: The paint sleeve (7) is slidably connected to the paint roller (6), and both ends of the paint sleeve (7) are fixedly connected to the paint roller (6) via set screws.

6. The painting device according to claim 2, characterized in that: Each paint roller (6) is provided with a paint groove (14) on the outside. The paint grooves (14) in the same paint roller group are interconnected. A felt rack (15) is provided on one side of the paint groove (14). Felt is placed on the felt rack (15).

7. The painting device according to claim 6, characterized in that: The felt frame (15) forms a mounting strip (16) on one side close to the paint roller (6), and a stopper (17) is detachably connected to the mounting strip (16); the paint sleeve (7) is slidably connected to the paint roller (6), and the stoppers (17) are located on both sides of the paint sleeve (7) and are used to laterally limit the paint sleeve (7).

8. The painting device according to claim 7, characterized in that: A plurality of slots (18) are spaced apart on the mounting bar (16); one end of the stopper (17) is connected to a C-shaped mounting foot (19); the mounting foot (19) is buckled and connected in the slot (18) and screwed to the mounting bar (16).

9. The painting device according to claim 2, characterized in that: The driving mechanism comprises a driving motor fixed on the paint rack (5), and the outside of the driving motor is connected to the paint roller (6) via a gear transmission mechanism.

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