Automatically controlled enameling machine for enameled wire film

Abstract

The invention discloses an automatic control type enameling machine for enameled wire, comprising a drying furnace, a first rotary roller and a painting roller are sequentially arranged at the front end of the drying furnace, a fixed speed wheel and a second rotary roller are sequentially arranged at the rear end of the drying furnace, the first rotary roller and the second rotary roller have the same height, and the fixed speed wheel and the second rotary roller are staggered up and down; the fixed speed wheel is cylindrical in shape, the outer surface of the fixed speed wheel forms a conical surface, and the outer diameter of the fixed speed wheel gradually increases along the direction of the outlet end; the first rotary roller is provided with a first guide shaft on the side away from the painting roller, and the second rotary roller is provided with a second guide shaft on the side away from the fixed speed wheel, the first guide shaft and the second guide shaft have the same height and are both lower than the first rotary roller, and a plurality of guide wheel groups are detachably connected to the first guide shaft and the second guide shaft. The invention can realize multiple painting of the enameled wire and improve the painting stability of the enameled wire.

Description

Technical Field

[0001] The invention relates to an enameled wire processing device, in particular to an enameled wire paint film automatic control type enameling machine. Background Art

[0002] At present, the enameling machine used for the surface painting process of enameled wire is mainly composed of a conveying mechanism, a painting mechanism and a drying furnace. Before the copper wire enters the drying furnace, a layer of enameled wire paint is first coated on its surface by the painting mechanism, and then the conveying mechanism sends the enameled wire into the drying furnace for baking, so that the paint layer solidifies into a film after baking; after the paint film is formed, the conveying mechanism sends the enameled wire out of the drying furnace and enters the next process, completing the painting process of the surface of the enameled wire. The defect of the enameling machine is that the enameling machine can only apply a layer of paint to the surface of the enameled wire each time the process is completed. As a result, for enameled wires that need to be coated with multiple layers of paint, multiple enameling machines need to be set up, or a conveying mechanism is used to transport the enameled wire to the front end of the enameling machine after the painting is completed and paint it again, thereby increasing the difficulty and cost of multiple painting of the enameled wire.

[0003] On the other hand, since the paint film on the surface of the enameled wire will be in a high temperature state after being cured by baking, when the paint film contacts the conveyor roller at the rear end of the oven, the high temperature of the conveyor roller at the contact part will turn blue, and the paint film will easily adhere to the conveyor roller after contact, affecting the paint film quality of the enameled wire. To address this problem, the current solution of manufacturers is to cool the conveyor roller with water so that the temperature of the conveyor roller surface can be controlled close to the normal temperature range. However, the defect of this cooling method is that due to the large difference between the surface temperature of the conveyor roller after cooling and the temperature of the enameled wire itself, when the enameled wire contacts the conveyor roller, the surface paint film will shrink and crack due to thermal expansion and contraction, which will also reduce the painting effect of the enameled wire.

[0004] Therefore, the existing enameling machine cannot realize multiple painting processes for the enameled wire, and there is a problem of poor painting stability. Summary of the invention

[0005] The object of the present invention is to provide an enameled wire paint film automatic control type enameling machine, which can realize multiple painting of the enameled wire and improve the painting stability of the enameled wire.

[0006] The technical solution of the present invention is as follows: an automatic control type enameling machine for enameled wire film, comprising a drying furnace, a first rotating roller and a painting roller are sequentially arranged at the front end of the drying furnace, a fixed speed wheel and a second rotating roller are sequentially arranged at the rear end of the drying furnace, the first rotating roller and the second rotating roller are of the same height, and the fixed speed wheel and the second rotating roller are staggered up and down; the fixed speed wheel is cylindrical in shape, the outer surface of the fixed speed wheel forms a conical surface, and the outer diameter of the fixed speed wheel gradually increases along the direction of the outlet end; the first rotating roller is provided with a first guide shaft on the side away from the painting roller, and the second rotating roller is provided with a second guide shaft on the side away from the fixed speed wheel, the first guide shaft and the second guide shaft are of the same height and are both lower than the first rotating roller, and a plurality of guide wheel groups are detachably connected to the first guide shaft and the second guide shaft; a spiral wiring channel is formed between the first rotating roller, the painting roller, the fixed speed wheel and the second rotating roller, the second guide shaft and the first guide shaft, and the two ends of the wiring channel form an inlet end and an outlet end respectively.

[0007] In the aforementioned automatic control enameling machine for enameled wire film, the wire travel distance from the first painting to the second painting is 15 to 20 m, the outer diameter of the constant speed wheel increases by 0.05 to 0.15 mm every 5 mm along the axial direction, and the spacing between the two enameled wires on the painting roller is 3 to 6 mm.

[0008] In the aforementioned automatic control type enameling machine for enameled wire, the first rotary roller has a plurality of first wire routing grooves arranged side by side along the axial direction, and the second rotary roller has a plurality of second wire routing grooves arranged side by side along the axial direction.

[0009] In the aforementioned automatic control type enameling machine for enameled wire film, a first limiting roller is provided between the drying furnace and the constant speed wheel, a second limiting roller is provided between the painting roller and the first rotating roller, and a plurality of third wire routing grooves are distributed side by side on the first limiting roller and the second limiting roller, and the first wire routing groove, the second wire routing groove and the third wire routing groove are aligned with each other.

[0010] In the aforementioned automatic control enameling machine for enameled wire film, the guide wheel group includes a detachably connected guide frame, the middle part of the guide frame is sleeved on the outside of the first guide shaft or the second guide shaft through a circular hole and is slidably connected to the first guide shaft or the second guide shaft, an inclined guide rod is rotatably connected to the guide frame, the upper end of the guide rod is rotatably connected to the guide wheel, and the guide rod and the guide frame are fixed to each other by fixing bolts; after the enameled wire comes out of the second rotating roller, it vertically enters the guide wheel on the second guide shaft, and extends from the guide wheel on the second guide shaft at an inclined angle, then passes through the guide wheel on the first guide shaft in a straight line, and then vertically enters the first rotating roller.

[0011] In the aforementioned automatic control type enameling machine for enameled wire, a heat dissipation channel is provided through the middle of the fixed speed wheel, and a plurality of heat dissipation blades are provided in the heat dissipation channel.

[0012] In the aforementioned automatic control type enameling machine for enameled wire, the heat dissipation blades and the constant speed wheel are fixedly connected.

[0013] Compared with the prior art, the present invention has the following characteristics:

[0014] (1) The present invention uses a spirally arranged wire routing channel to enable the copper wire to pass through the paint roller and the drying oven multiple times in a spiral conveying manner after entering the enameling machine, thereby achieving multiple coatings of the enameled wire in one routing process, and reducing the difficulty and cost of multiple coatings of the enameled wire compared to the existing enameling machine;

[0015] (2) The enameled wire will continue to stretch due to the tension during the routing process; by gradually increasing the outer diameter of the constant speed wheel along the direction of the wire outlet, the routing distance of the enameled wire after each painting can be successively extended. As a result, when the enameled wire continues to stretch as the wire is pulled during the routing process, the constant speed wheel can be used to keep the enameled wire tensioned throughout the entire process, avoiding the up and down shaking of the enameled wire caused by the elongation, thereby improving the painting quality of the enameled wire;

[0016] (3) By setting the first guide shaft and the second guide shaft and optimizing the structure of the guide wheel group, the guide wheel can adjust its lateral position and tilt direction respectively during installation, so that the enameled wire can enter the guide wheel vertically after exiting from the second rotating roller during routing, and then pass through the guide wheels on both sides in a straight line at an inclined angle and enter the first rotating roller vertically; and under the above cooperation, the present invention can effectively avoid the contact between the enameled wire and the side walls of each conveying part during the inclined routing while realizing the spiral conveying of the enameled wire, thereby avoiding the wear of the paint layer on the surface of the enameled wire, and further improving the painting stability of the enameled wire;

[0017] (4) By forming a heat dissipation channel through the middle of the constant speed wheel and arranging a number of heat dissipation blades in the heat dissipation channel, the heat dissipation blades can play a role in supplying air during the rotation of the constant speed wheel, thereby accelerating the air flow rate in the heat dissipation channel and achieving an air cooling effect, thereby reducing the surface temperature of the constant speed wheel to avoid adhesion of the paint film after contacting the constant speed wheel; at the same time, the cooling effect is relatively weaker than conventional water cooling, thereby avoiding shrinkage and cracking of the paint film after contacting the constant speed wheel, and further improving the coating stability of the enameled wire;

[0018] Therefore, the present invention can realize multiple painting of the enameled wire and improve the painting stability of the enameled wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the guide wheel group;

[0021] Figure 3 This is a schematic diagram of the routing of the guide wheel groups on both sides;

[0022] Figure 4 1 is a schematic diagram of the structure of the first limiting roller and the second limiting roller;

[0023] Figure 5 It is a schematic diagram of the structure of the fixed speed wheel at the end.

[0024] The markings in the accompanying drawings are: 1-drying furnace, 2-first rotating roller, 3-painting roller, 4-constant speed wheel, 5-second rotating roller, 6-first guide shaft, 7-second guide shaft, 8-first limiting roller, 9-second limiting roller, 10-guide frame, 11-guide rod, 12-guide wheel, 13-fastening bolt, 14-heat dissipation channel, 15-heat dissipation blade. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0026] Embodiment. An automatic control type enameling machine for enameled wire film is constructed as follows Figure 1 As shown, it comprises a drying oven 1, wherein a first rotating roller 2 and a painting roller 3 are sequentially arranged at the front end of the drying oven 1, and a fixed-speed wheel 4 and a second rotating roller 5 are sequentially arranged at the rear end of the drying oven 1. The first rotating roller 2 and the second rotating roller 5 have the same height, and the fixed-speed wheel 4 and the second rotating roller 5 are staggered up and down; the fixed-speed wheel 4 is cylindrical in shape, and the outer surface of the fixed-speed wheel 4 forms a conical surface, and the outer diameter of the fixed-speed wheel 4 gradually increases along the outlet end direction; the first rotating roller 2 is provided with a first guide shaft 6 on the side away from the painting roller 3, and the first guide shaft 6 is provided on the side away from the painting roller 3. The second rotating roller 5 is provided with a second guide shaft 7 on the side away from the constant speed wheel 4. The first guide shaft 6 and the second guide shaft 7 have the same height and are both lower than the first rotating roller 2. A plurality of guide wheel groups are detachably connected to the first guide shaft 6 and the second guide shaft 7. A spiral wiring channel is formed between the first rotating roller 2, the painting roller 3, the constant speed wheel 4 and the second rotating roller 5, the second guide shaft 7 and the first guide shaft 6. The two ends of the wiring channel form an input end and an output end respectively. A return channel for the enameled wire to return is reserved at the bottom of the drying furnace 1.

[0027] The two ends of the fixed speed wheel 4 are rotatably connected to the enameling machine frame via bearings, and the external transmission of the fixed speed wheel 4 is connected to a driving motor.

[0028] The enameled wire has a travel distance of 15 to 20 m from the first painting to the second painting, the outer diameter of the constant speed wheel 4 increases by 0.05 to 0.15 mm for every 5 mm in the axial direction, and the spacing between the two enameled wires on the painting roller 3 is 5 mm.

[0029] The first rotating roller 2 has a plurality of first wiring grooves arranged side by side along the axial direction, and the second rotating roller 5 has a plurality of second wiring grooves arranged side by side along the axial direction.

[0030] A first limiting roller 8 is provided between the drying oven 1 and the constant speed wheel 4, a second limiting roller 9 is provided between the painting roller 3 and the first rotating roller 2, a plurality of third wiring grooves are distributed side by side on the first limiting roller 8 and the second limiting roller 9, and the positions of the wiring grooves on the first wiring groove, the second wiring groove and the third wiring groove are aligned with each other; the first rotating roller 2, the second rotating roller 5, the first limiting roller 8 and the second limiting roller 9 have the same appearance.

[0031] The guide wheel assembly includes a guide frame 10, which is a split structure and connected to each other by bolts. The middle part of the guide frame 10 is sleeved on the outside of the first guide shaft 6 or the second guide shaft 7 through a round hole and is slidably connected to the first guide shaft 6 or the second guide shaft 7. An inclined guide rod 11 is rotatably connected to the guide frame 10, and a guide wheel 12 is rotatably connected to the upper end of the guide rod 11. The guide rod 11 and the guide frame 10 are fixed to each other by a fixing bolt 13. The fixing bolt 13 is threadedly connected to the guide frame 10 and one end of the fixing bolt 13 is attached to the guide rod 11.

[0032] After exiting from the second rotating roller 5 , the enameled wire vertically enters the guide wheel 12 on the second guide shaft 7 , extends from the guide wheel 12 on the second guide shaft 7 at an inclined angle, passes through the guide wheel 12 on the first guide shaft 6 in a straight line, and then vertically enters the first rotating roller 2 .

[0033] A heat dissipation channel 14 is provided in the middle of the fixed speed wheel 4, and a plurality of heat dissipation blades 15 are provided in the heat dissipation channel 14; the temperature of the fixed speed wheel 4 after air cooling is controlled at about 80-100°C.

[0034] The heat dissipation blades 15 are fixedly connected to the fixed speed wheel 4 .

[0035] Working principle of the present invention: When the present invention is used, the copper wire enters from the wire inlet and passes through the second limiting roller 9 and the paint roller 3 in sequence. The paint roller 3 rotates to coat the enameled wire paint on the surface of the copper wire to form a paint layer, and then the enameled wire is sent into the oven 1 to bake the paint layer. After baking, the enameled wire is discharged from the rear end of the oven 1 and passes through the first limiting roller 8, the constant speed wheel 4 and the second rotating roller 5 in sequence, and then extends vertically downward into the guide wheel 12 of the second guide shaft 7 (the vertical downward direction means that the enameled wire will not be offset along the axial direction of the second guide shaft 7 during the routing process, and thus will not form an extrusion on the side wall of the second routing groove and the guide wheel 12). After passing through the guide wheel 12, the enameled wire extends out at an inclined angle and extends into the guide wheel 12 of the first guide shaft 6 in a straight state, so that the lateral position of the enameled wire is controlled by the guide wheels 12 inclined on both sides, so as to realize the spiral conveying of the enameled wire. After the enameled wire extends from the guide wheel 12 of the first guide shaft 6, it runs vertically upward and passes through the first rotating roller 2, the second limiting roller 9 and another wire groove of the painting roller 3 in sequence; thus, multiple painting processes of the enameled wire are realized in this way, and the enameled wire is discharged from the outlet end after the painting is completed. During the running process of the enameled wire, the outer diameter of the constant speed wheel 4 is successively increased along the running direction, so that the running distance of the enameled wire can be extended in each painting process, thereby matching the elongation length of the enameled wire during the running process, that is, the enameled wire can still maintain a tensioned state after elongation, thereby improving its painting effect.

[0036] The speed-fixing wheel 4 keeps rotating during the conveying process and drives the enameled wire. The heat dissipation blades 15 can rotate together with the paint roller 3 to achieve the air supply effect, so that the external air can quickly pass through the heat dissipation channel 14 driven by the heat dissipation blades 15, thereby achieving air cooling in the heat dissipation channel 14. Under the above cooperation, the speed-fixing wheel 4 can avoid the adhesion of the paint film caused by overheating on the one hand, and can also alleviate the cracking phenomenon of the paint film caused by the cold when contacting the speed-fixing wheel 4 on the other hand, thereby improving the stability of the paint film.

Claims

1. Automatically controlled enameling machine for enameled wire film, characterized by: The invention comprises a drying furnace, wherein a first rotating roller and a painting roller are sequentially arranged at the front end of the drying furnace, and a fixed-speed wheel and a second rotating roller are sequentially arranged at the rear end of the drying furnace, the first rotating roller and the second rotating roller are of the same height, and the fixed-speed wheel and the second rotating roller are staggered up and down; the fixed-speed wheel is cylindrical in shape, and the outer surface of the fixed-speed wheel forms a conical surface, and the outer diameter of the fixed-speed wheel gradually increases along the direction of the outlet end; the first rotating roller is provided with a first guide shaft on the side away from the painting roller, and the second rotating roller is provided with a second guide shaft on the side away from the fixed-speed wheel, the first guide shaft and the second guide shaft are of the same height and are both lower than the first rotating roller, and a plurality of guide wheel groups are detachably connected to the first guide shaft and the second guide shaft; a spiral wiring channel is formed between the first rotating roller, the painting roller, the fixed-speed wheel and the second rotating roller, the second guide shaft and the first guide shaft, and the two ends of the wiring channel respectively form an inlet end and an outlet end; The guide wheel group includes a detachably connected guide frame, the middle part of the guide frame is sleeved on the outside of the first guide shaft or the second guide shaft through a circular hole and is slidably connected to the first guide shaft or the second guide shaft, an inclined guide rod is rotatably connected to the guide frame, the upper end of the guide rod is rotatably connected to the guide wheel, and the guide rod and the guide frame are fixed to each other by fixing bolts; after the enameled wire comes out of the second rotating roller, it vertically enters the guide wheel on the second guide shaft, and extends out from the guide wheel on the second guide shaft at an inclined angle, then straightly passes through the guide wheel on the first guide shaft, and then vertically enters the first rotating roller.

2. The automatic control type enameling machine for enameled wire film according to claim 1, characterized in that: The enameled wire has a travel distance of 15 to 20 m from the first painting to the second painting, the outer diameter of the constant speed wheel increases by 0.05 to 0.15 mm for every 5 mm along the axial direction, and the spacing between two enameled wires on the painting roller is 3 to 6 mm.

3. The automatic control type enameling machine for enameled wire film according to claim 1, characterized in that: The first rotating roller has a plurality of first wiring grooves arranged side by side along the axial direction, and the second rotating roller has a plurality of second wiring grooves arranged side by side along the axial direction.

4. The automatic control type enameling machine for enameled wire film according to claim 3, characterized in that: A first limiting roller is provided between the drying oven and the fixed speed wheel, a second limiting roller is provided between the painting roller and the first rotating roller, a plurality of third wiring grooves are arranged side by side on the first limiting roller and the second limiting roller, and the first wiring groove, the second wiring groove and the third wiring groove are aligned with each other.

5. The automatic control type enameling machine for enameled wire film according to claim 1, characterized in that: A penetrating heat dissipation channel is provided in the middle of the fixed speed wheel, and a plurality of heat dissipation blades are provided in the heat dissipation channel.

6. The automatic control type enameling machine for enameled wire film according to claim 5, characterized in that: The heat dissipation blades and the fixed speed wheel are fixedly connected.

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