Continuously running unattended small and medium-sized multi-head enameling machines

Abstract

The present invention relates to a small and medium-sized multi-head enameling machine that runs continuously and unattended, which includes a wire-releasing system, a wire drawing system, a cleaning system, an annealing system, a painting system, a baking system, a cooling and traction system, and a wire-receiving system that are connected in sequence. The present invention effectively solves the problems of wire breakage, cooling failure, and wire-receiving and reel-changing in the production of enameled wires, ensures that the enameling machine can achieve long-term continuous and stable operation under unattended conditions, greatly reduces the labor intensity of workers, reduces costs, and improves production efficiency.

Description

Technical Field

[0001] The invention belongs to the field of enameling machines, and in particular relates to a small and medium-sized multi-head enameling machine which operates continuously and unattended. Background Art

[0002] As we all know, enameled wire is the main and key raw material for electromagnetic windings of motors, electrical appliances and other products. In recent years, the electric power and electrical appliance industry has achieved sustained and rapid growth, bringing a relatively broad application field and market for enameled wire. However, due to the low production capacity of traditional enameling equipment and the low quality of the products produced, it cannot bring competitiveness to the enterprise, so a new enameling production process of multi-head continuous pulling and continuous packaging came into being.

[0003] At present, the production process of continuous drawing and continuous packaging enameling mainly includes: wire laying → wire drawing → cleaning → annealing → painting → baking → cooling → wire taking up. However, in the actual production process, the existing enameling machines have the following problems: 1. When the wire breaks during the wire drawing process, all bare wires need to be stopped and manually reconnected, which greatly limits the production efficiency; 2. Water cooling is commonly used in the cooling process. The existing water cooling device consumes a lot of water resources and is prone to water shortage, water leakage and other faults. If not handled in time, it is easy to affect the cooling effect of the enameled wire; 3. In the wire taking-up process, the automatic replacement of the take-up reel is prone to wire breakage, resulting in a low success rate of automatic reel replacement and frequent manual wiring.

[0004] In summary, the existing enameling machines need to be staffed with personnel on duty to maintain continuous and normal operation, and the production labor intensity is high. In addition, it is difficult for companies to recruit workers nowadays and the labor supply is insufficient. Therefore, the market urgently needs an enameling machine that can significantly reduce labor to replace the labor-intensive enameling machine. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an improved continuously operating unattended small and medium-sized multi-head enamelling machine.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0007] A medium-sized multi-head enameling machine which is continuously operated and unattended, comprising a wire-paying system, a wire-drawing system, a cleaning system, an annealing system, a painting system, a baking system, a cooling and pulling system, and a wire-taking system which are connected in sequence, wherein the wire-paying system has a plurality of wire-paying stations, and the wire-drawing system has a plurality of wire-drawing stations which are connected one-to-one with the plurality of wire-paying stations, wherein the plurality of wire-drawing stations are arranged spaced apart from each other, and the wire-drawing system comprises a wire-drawing unit which is arranged correspondingly on each wire-drawing station, and a tension control unit which corresponds one-to-one with each group of wire-drawing units and is used to control the tensile tension of the bare wire; the cooling and pulling system comprises a pulling roller which is hollow inside and forms a ventilation cavity, and an air supply component, wherein the pulling roller is further provided with an air inlet and an air outlet which are respectively connected with the ventilation cavity; the air supply component is connected with the air inlet, and when air is supplied, the cooling airflow flows from the air inlet along the ventilation cavity and is discharged from the air outlet, A plurality of bare wires are arranged side by side on a traction roller along the flow direction of the airflow in the ventilation cavity; the wire taking-up system comprises a chassis, a plurality of wire taking-up units spaced apart on the chassis, a wire taking-up auxiliary unit arranged between each two adjacent wire taking-up units, and a wire arranging unit for arranging wires, wherein each wire taking-up unit comprises a turntable and a wire catching component arranged on the turntable, the wire taking-up disk is positioned on the turntable, each wire taking-up auxiliary unit comprises a first wire blocking component, a second wire blocking component, and a wire pressing component arranged in a staggered manner, wherein the chassis is used to drive the plurality of turntables to connect with the wire arranging unit in sequence, and when changing the turntables, the first wire blocking component is arranged close to one of the two adjacent turntables and forms a limiting area for the enameled wire between the first wire blocking component and the wire pressing component, the second wire blocking component is arranged close to the other of the two adjacent turntables and is used to separate the enameled wire from the wire catching component on the corresponding turntable, and the wire pressing component is used to press the enameled wire toward the chassis.

[0008] Preferably, the wire pay-off system, wire drawing system, painting system, baking system, cooling and traction system, and wire take-up system are arranged in sequence in the horizontal direction, and the annealing system is arranged above the wire pay-off system; or, the wire pay-off system, wire drawing system, baking system, cooling and traction system, and wire take-up system are arranged in sequence in the horizontal direction, the wire drawing system is arranged above the wire pay-off system, and the annealing system is arranged below the baking system.

[0009] Preferably, each wire drawing station has a wire inlet and a wire outlet; each group of wire drawing units includes a wire wheel, a wire drawing die connected to the wire wheel, and a lubricating component for spraying wire drawing oil onto the wire wheel and the wire drawing die respectively; each group of tension control units is arranged at the wire outlet of the corresponding wire drawing station, and includes a traction wheel and a tension wheel movably arranged up and down, wherein each bare wire passes through the corresponding traction wheel and tension wheel in sequence after passing through the wire outlet.

[0010] Specifically, in each group of wire drawing units, there are two wire wheels and they are arranged side by side in the horizontal direction, and the wire drawing die is arranged between the two wire wheels; and / or, the wire wheel adopts a tower wheel; and / or, the wire drawing die has multiple channels, and the multiple channels are distributed at intervals along the center line direction of the wire wheel; and / or, the lubrication component is arranged above the wire wheel and the wire drawing die, and the wire drawing oil is sprayed from top to bottom; and / or, each group of tension control units also includes a rocker arm that can be flipped up and down, and a counterweight block detachably connected to the rocker arm, wherein the tension wheel is connected to the rocker arm.

[0011] Preferably, the ventilation cavity passes through the traction roller in a horizontal direction, and the air inlet and the air outlet are respectively formed at opposite ends of the traction roller.

[0012] Specifically, a first connecting plate and a second connecting plate are respectively provided at both ends of the ventilation cavity; the traction roller includes a roller formed with a ventilation cavity, a first rotating shaft, and a second rotating shaft, wherein an air inlet is formed on one of the first connecting plate and the second connecting plate, and an air outlet is formed on the other of the first connecting plate and the second rotating shaft, and the first rotating shaft and the second rotating shaft are respectively fixedly connected to the first connecting plate and the second connecting plate.

[0013] Preferably, the wire pressing component is arranged on the outside of the first wire blocking component, and when changing the disc, the enameled wire is limited between the corresponding first wire blocking component and the wire pressing component; and / or, the first wire blocking component includes a first wire blocking rod perpendicular to the chassis, wherein the first wire blocking rod is fixedly connected or rotatably connected to the chassis from one end.

[0014] Preferably, the second wire blocking component includes a second wire blocking rod formed with a hook portion, wherein the hook portion protrudes from the corresponding wire catching component on the turntable, and when the wire pressing component presses the enameled wire, the enameled wire is hung on the corresponding hook portion; and / or, the wire pressing component includes a fixed seat fixedly connected to the chassis, and a pressure rod movably connected to the fixed seat, wherein the pressure rod has a first state and a second state, when changing the disk, the pressure rod is in the first state and presses the enameled wire; when winding the wire normally, the pressure rod is in the second state and avoids the enameled wire.

[0015] Preferably, the wire traversing unit further includes a wire traversing arm disposed above or on one side of the chassis, and a driving component for driving the wire traversing arm, wherein a wire traversing wheel is disposed on the wire traversing arm and moves synchronously with the wire traversing arm; and / or the length of the enameled wire between the wire traversing wheel and the corresponding wire take-up reel remains constant.

[0016] Specifically, the cable arrangement arm is in a C-shape with its opening facing the chassis, wherein infrared ray emitters are respectively provided at both ends of the C-shape.

[0017] Due to the implementation of the above technical solution, the present invention has the following advantages compared with the prior art:

[0018] The present invention effectively solves the problems of wire breakage, cooling failure, and wire reel replacement in the production of enameled wires, ensures that the enameling machine can achieve long-term continuous and stable operation under unattended conditions, greatly reduces the labor intensity of workers, reduces costs, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main view of the medium and small-sized multi-head enameling machine which operates continuously and unattended according to the present invention;

[0020] Figure 2 It is a structural schematic diagram of the wire drawing system (partial cross-section);

[0021] Figure 3 for Figure 2 Schematic diagram of the left side (partial section view);

[0022] Figure 4 for Figure 2 A top view of the middle wire drawing frame, wire drawing unit, and traction wheel (partial cross-section);

[0023] Figure 5 for Figure 2 A schematic top view of the lubricating parts;

[0024] Figure 6 It is a structural schematic diagram of the baking system;

[0025] Figure 7 It is a schematic diagram of the structure of the cooling traction system;

[0026] Figure 8 for Figure 7 Schematic diagram of the left side;

[0027] Fig. 9 It is an enlarged schematic diagram of the structure of the retaining ring;

[0028] Fig.10 It is an enlarged schematic diagram of the structure of the traction roller;

[0029] Fig.11 for Fig.10 AA section view;

[0030] Fig.12 is an enlarged schematic diagram of the structure of the first connecting plate;

[0031] Fig.13 is an enlarged schematic diagram of the structure of the second connecting plate;

[0032] Fig.14 It is a structural diagram of the wire collection system;

[0033] Fig.15 for Fig.14A left side view of the mid-chassis and the take-up unit (partial section view);

[0034] Fig.16 It is a structural schematic diagram of the wire catching component (partial cross-section);

[0035] Fig.17 It is a structural schematic diagram of the wire pressing component;

[0036] Fig.18 It is a structural schematic diagram of a wiring unit;

[0037] Fig.19 It is a structural schematic diagram of the tension wheel, the second swing rod, the second counterweight block, and the limit rod;

[0038] Among them: ①, wire-paying system; ②, wire drawing system; 1, wire drawing rack; 11, first frame; w1, wire drawing station; k1, wire inlet; k2, wire outlet; k3, oil supply port; 12, second frame; 2, wire drawing unit; 20, wire wheel; 21, wire drawing die; 22, lubrication parts; 220, oil supply main pipe; 221, spray branch pipe; k4, spray hole; 3, tension control unit; 30, traction wheel; 31, first swing rod; 32, first counterweight; 33, tension wheel; G, control cabinet; ③, cleaning system; ④, annealing system; A1, annealing furnace; A2, cooling parts; A3, drying parts; ⑤, painting system; ⑥, baking system; B1, furnace; 1a, feed inlet; 1b, discharge port; B2, hot air circulation unit element; B20, hot air circulation duct; 200, lower air duct; t1, air flow channel; 201, upper air duct; d1, left air duct; k5, exhaust gas outlet; d2, right air duct; q1, mixing chamber; q11, spherical cavity; q12, exhaust channel; B21, hot air circulation fan; B3, catalytic combustion unit; B30, auxiliary heater; B31, primary catalytic combustion component; c1, pre-catalytic temperature sensor; c2, post-catalytic temperature sensor; B4, temperature control unit; 40, heating component; 41, cold air supply component; 42, control component; B5, exhaust gas treatment unit; 50, exhaust channel; 501, first channel; 502, second channel; q2, heat exchange area; g, heat exchange tube; 51, secondary catalytic combustion Burning component; 52, heat exchange component; 53, air delivery component; 531, first transmission pipeline; 532, second transmission pipeline; 54, secondary heat exchange component; ⑦, cooling traction system; C1, traction frame; C10, base; C11, intermediate bracket; 111, first layer; 112, second layer; t2, air guide channel; k7, connection port; C12, side bracket; C2, traction roller; C20, roller; C200, roller body; q3, ventilation cavity; k6, air inlet; k7, air outlet; h, guard ring; h0, through hole; b1, first connecting plate; b2, second connecting plate; b20, fan blade; C21, first rotating shaft; C22, second rotating shaft; C3, driving component; C4, air supply component; r, soft Tube;⑧, take-up system;x, enameled wire;P, take-up reel;D1, chassis;D10, housing;f, top block;D11, reel body;s1, spindle;e1, micro reduction motor;D2, take-up unit;D20, turntable;s2, positioning shaft;e2, take-up motor;D21, line catching component;211, first body;212, second body;t3, spring;D3, take-up auxiliary unit;D31, first line blocking component;q4, limit area;D32, second line blocking component;321, first rod body;322, second rod body;D33, line pressing component;330, fixed seat;331, first connecting rod;332, second connecting rod;333, pressing rod;D4, line arrangement unit;D40, line arrangement arm;a, infrared ray transmitter;e3, servo motor; e4, stepper motor; D41, cable wheel; D42, tension wheel; 43, second swing rod; 44, second counterweight; 45, limit rod. ; DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0040] like Figures 1 to 19 As shown, the present embodiment is a continuously operating unattended small and medium-sized multi-head enameling machine, which includes a wire-releasing system ①, a wire drawing system ②, a cleaning system ③, an annealing system ④, a painting system ⑤, a baking system ⑥, a cooling and traction system ⑦, and a wire-receiving system ⑧ which are connected in sequence.

[0041] Specifically, the pay-off system ① is provided with a plurality of pay-off stations distributed at intervals. The pay-off system ① in this embodiment can be any common pay-off equipment. By providing a plurality of pay-off stations, the supply of a large-capacity bare copper wire busbar can be supported, so that the bare wire supply time is long, the wire is not broken, and the number of joints is small.

[0042] Combination Figures 2 to 5 As shown, the wire drawing system ② is arranged on one side of the wire paying-off system ①, and includes a wire drawing frame 1, a wire drawing unit 2, and a tension control unit 3.

[0043] Specifically, the wire drawing frame 1 includes a first frame 11 and a second frame 12 arranged side by side, wherein the first frame 11 is formed with two cavities separated from each other, and each of the two cavities is provided with a wire drawing station w1, and each wire drawing station w1 has an inlet k1 and an outlet k2 located on the left and right sides of the first frame 11, and the bare wire passes through the inlet k1, the wire drawing station w1, and the outlet k2 from left to right. There are two groups of wire drawing units 2 and they are arranged in two wire drawing stations w1 in a one-to-one correspondence; there are two groups of tension control units 3 and they are connected to the second frame 12 respectively, wherein the two groups of tension control units 3 are connected to the two wire drawing stations w1 in a one-to-one correspondence. In some specific embodiments, the two groups of wire drawing units 2 are each controlled by an independent control module, and the operation is independent and does not interfere with each other. In some specific embodiments, the two groups of control modules are integrated in a control cabinet G, and the control cabinet G is arranged on the top of the wire drawing frame 1.

[0044] In order to facilitate operation and implementation, the same side of the two cavities is provided with a door body that can be opened or closed (not shown in the figure, but it is not difficult to imagine), and each door body is made of transparent material. This arrangement makes it convenient for workers to observe the operating status of the equipment in the wire drawing machine.

[0045] In this example, each group of wire drawing units 2 includes a wire wheel 20, a wire drawing die 21 connected to the wire wheel 20, and a lubricating component 22 for spraying wire drawing oil to the wire wheel 20 and the wire drawing die 21 respectively.

[0046] Specifically, the wire wheel 20 adopts a tower wheel and is rotatably connected to the first frame 11 through a rotating shaft, and there are two wire wheels 20 in each wire drawing unit 2 and they are arranged side by side in a spaced manner along the left and right direction, wherein the two wire wheels 20 in each wire drawing unit 2 are synchronously driven by a driving member. In some specific embodiments, the driving method can adopt various common driving methods, such as gear drive or belt drive.

[0047] At the same time, in the two sets of wire drawing units 2, the projection of the wire wheel 20 located at the bottom in the vertical direction emerges from the wire wheel 20 located at the top, and the length of the projection is 100-150 mm. This arrangement is more convenient for employees to operate and perform daily maintenance. In some specific embodiments, in the two sets of wire drawing units 2, the projection of the wire wheel 20 located at the bottom in the vertical direction emerges from the wire wheel 20 located at the top by 120 mm.

[0048] Specifically, in each wire drawing unit 2, the wire drawing die 21 is disposed between two wire wheels 20 and fixedly connected to the first frame 11, wherein the wire drawing die 21 adopts a conventional die base having multiple channels, and the multiple channels are spaced apart along the center line direction of the wire wheel 20. This arrangement facilitates the production of bare wires of different specifications.

[0049] Specifically, in each group of wire drawing units 2, the lubricating component 22 is arranged above the wire drawing wheel 20 and the wire drawing die 21, and includes an oil supply main pipe 220 extending horizontally in the left-right direction, and three spray branches 221 connected to the oil supply branch pipe 220, wherein the left side of the first frame 11 is also provided with two oil supply ports k3 connected to the upper and lower oil supply main pipes 220, so that the external oil supply mechanism can supply wire drawing oil to the oil supply main pipe 220; the three spray branches 221 are correspondingly arranged above the two wire drawing wheels 20 and the wire drawing die 21, and each spray branch 221 extends along the center line direction of the wire drawing wheel 20 and forms a plurality of spray holes k4 distributed at intervals, and when spraying, the wire drawing oil is sprayed from top to bottom on the two wire drawing wheels 20, the wire drawing die 21, and the surface of the bare wire. With this arrangement, the wire drawing oil can evenly lubricate the surface of the wire drawing wheel and the wire drawing die, thereby improving the lubrication effect.

[0050] Furthermore, the lubricating component 22 also includes a drawing oil pool (not shown in the figure, but it is not difficult to imagine) connected to the corresponding drawing station w1, and the drawing oil flows from top to bottom and returns to the drawing oil pool for recycling. In this way, the drawing oil is recycled to reduce costs.

[0051] In this example, two groups of tension control units 3 are connected one by one with the wire outlets k2 of the two wire drawing stations w1, and are used to control the tension of the bare wire respectively, wherein each group of tension control units 3 includes a traction wheel 30, a first rocker arm 31, a first counterweight block 32, and a tension wheel 33, wherein each bare wire passes through the corresponding traction wheel 30 and tension wheel 33 in sequence after passing through the wire outlet k2.

[0052] Specifically, the traction speed of the traction wheel 30 is consistent with the traction speed of the enameling machine for the enameled wire. This arrangement ensures that the wire drawing speed matches the traction speed of the entire enameling machine and avoids the problem of wire breakage.

[0053] Specifically, in each group of tension control units 3, the first swing arm 31 is located above the traction wheel 30 and is rotatably connected to the second frame 12 from one end and can flip up and down from the other end. The first counterweight 32 is detachably connected to the non-end of the first swing arm 31, and the tension wheel 33 is connected to the other end of the first swing arm 31 and can flip up and down synchronously therewith. In some specific embodiments, a potentiometer or a proximity switch is used to control the position of the first swing arm 31. This arrangement can realize automatic adjustment of the wire drawing outlet tension; at the same time, it is convenient to replace the counterweight according to the tension requirements.

[0054] In this example, the cleaning system ③ is arranged above the pay-off system ①, and the bare wire after being stretched by the wire drawing system ② enters the cleaning system ③. The cleaning system ③ can be any common cleaning equipment, which is used to clean all oil stains such as wire drawing oil attached to the surface of the bare wire to ensure the production of high-quality enameled wire.

[0055] In this example, the annealing system ④ is arranged above the wire-paying system ① and the wire-drawing system ② and connected to the cleaning system ③, and the annealing system ④ includes an annealing furnace A1 inclined in the left-right direction, a cooling component A2 arranged at the outlet of the annealing furnace A1, and a drying component A3 connected to the cooling component A2. During the bare wire annealing process, inert gas or steam is added to the annealing furnace A1 for oxidation protection to ensure the continuous and uninterrupted normal operation of the bare wire.

[0056] In this example, the painting system ⑤ is connected with the baking system ⑥, and the bare wire after annealing, cooling and drying in the annealing system ④ enters the painting system ⑤ for painting. The painting system ⑤ can be various common painting equipment.

[0057] Combination Figure 6As shown, the baking system ⑥ is arranged on one side of the painting system ⑤, and includes a paint baking furnace chamber B1, a hot air circulation unit B2, a catalytic combustion unit B3, a temperature control unit B4, and an exhaust gas treatment unit B5.

[0058] Specifically, the furnace B1 is horizontal, and has a feed port 1a and a discharge port 1b formed at the left and right ends in its length direction, respectively.

[0059] In this example, the hot air circulation unit B2 includes a hot air circulation duct B20 and a hot air circulation fan B21 arranged in the furnace B1.

[0060] Specifically, the hot air circulation duct B20 includes a lower duct 200 connected between the feed port 1a and the discharge port 1b, and an upper duct 201 connected to the lower duct 200 to form a ring. The enameled wire passes through the feed port 1a and the lower duct 200 and the discharge port 1b in turn. The hot air flow direction in the lower duct 200 is opposite to the transmission direction of the enameled wire, and the hot air flow direction in the upper duct 201 is the same as the transmission direction of the enameled wire. The hot air circulation fan B21 is arranged in the upper duct 201.

[0061] Specifically, the length of the lower air duct 200 is greater than 6 meters, and the width of the lower air duct 200 is 1 meter. Compared with the lower air duct length of 4-5 meters in the existing paint baking furnace, the paint baking furnace of this embodiment can increase the production line speed of the enameled wire and improve the production efficiency; the width of the lower air duct of this embodiment is narrowed from the existing 2 meters to 1 meter, so that the circulating hot air temperature on both sides of the same cross section in the lower air duct can be balanced to ensure that the enameled wire is heated evenly.

[0062] Specifically, the upper air duct 201 includes a left air duct d1 and a right air duct d2 respectively connected to the lower air duct 200, wherein the hot air circulation fan B21 is arranged at the left end of the right air duct d2, and the right end of the left air duct d1 is connected to the left end of the right air duct d2. This arrangement facilitates the production and assembly of the corresponding lengthened upper air duct.

[0063] At the same time, the inner diameter of the right air duct d2 is gradually narrowed from left to right. In this way, the hot air pressure is increased by narrowing the inner diameter of the air duct, ensuring the stable circulation of hot air.

[0064] In this example, the catalytic combustion unit B3 includes an auxiliary heater B30 arranged in the left air duct d1, and a primary catalytic combustion component B31 arranged between the auxiliary heater B30 and the hot air circulation fan B21, wherein an exhaust gas outlet k5 is formed at the bottom of the left air duct d1, and the exhaust gas outlet k5 is located on the right side of the primary catalytic combustion component B31.

[0065] Furthermore, a pre-catalytic temperature sensor c1 and a post-catalytic temperature sensor c2 are respectively provided on the left and right sides of the primary catalytic combustion component B31.

[0066] In this example, a mixing chamber q1 is also formed in the hot air circulation duct B20, and the temperature control unit B4 includes a heating component 40, a cold air supply component 41 connected to the mixing chamber q1, and a control component 42 for automatically controlling the start and stop of the heating component 40 and the cold air supply component 41. When the furnace temperature is low, the heating component 40 heats the hot air; when the furnace temperature is high, the cold air supply component 41 drives the cold air and hot air to mix in the mixing chamber q1.

[0067] Specifically, the mixing chamber q1 includes a spherical cavity q11 connected to the right end of the right air duct d2, and an exhaust channel q12 connecting the spherical cavity q11 and the lower air duct 200, wherein the exhaust channel q12 extends obliquely toward the lower left from the spherical cavity q11 and extends into the lower air duct 200, the heating component 40 is arranged in the right air duct d2, the cold air supply component 41 is a cold air blower connected to the right air duct d2, and the connection point is located between the heating component 40 and the spherical cavity q11.

[0068] That is to say, when circulating, the hot air in the upper air duct 201 passes through the mixing chamber q1 and enters the lower air duct 200, and when the cold air supply component 41 is working, the cold air and the hot air enter the spherical cavity q11 from left to right along the upper air duct 201 synchronously and enter the lower air duct 200 after being mixed in rotation. In this way, the cold air and the hot air can form a rotating airflow when entering the mixing chamber, so as to be fully mixed, effectively ensuring that the high-temperature hot air is quickly cooled to the set temperature.

[0069] Specifically, the control component 42 is a temperature sensor extending into the spherical cavity q11. This arrangement can obtain the temperature of the hot air before entering the lower air duct, thereby controlling the heating component and the cold air supply component to work alternately, implement precise regulation, and ensure that the furnace temperature reaches the set value.

[0070] In this example, the exhaust gas treatment unit B5 includes an exhaust passage 50 , an exhaust fan, a secondary catalytic combustion component 51 , a heat exchange component 52 , and an air conveying component 53 .

[0071] Specifically, the exhaust channel 50 includes a first channel 501 and a second channel 502 that are connected to each other, wherein the first channel 501 is located between the upper air duct 201 and the lower air duct 200 and is connected to the exhaust gas outlet k5 from one end, and the exhaust fan draws the exhaust gas downward from the exhaust gas outlet k5 into the first channel 501, and the flow direction of the exhaust gas in the first channel 501 is opposite to the flow direction of the circulating hot air in the upper air duct 201.

[0072] At the same time, the second channel 502 extends in the vertical direction and intersects with the upper air duct 201, and the intersection is located on the left side of the auxiliary heater B30 and forms a heat exchange area q2, and the exhaust gas and hot air simultaneously pass through the heat exchange area q2 for heat exchange. In this way, the exhaust gas exchanges heat with the circulating hot air before catalysis, and the temperature of the circulating hot air before catalysis is auxiliary heated to achieve energy saving effect.

[0073] For the convenience of implementation, a plurality of heat exchange tubes g are provided in the heat exchange area q2 to connect the first channel 501 and the second channel 502. When the exhaust gas is discharged, the exhaust gas passes through the plurality of heat exchange tubes g upward, and in the heat exchange area q2, the exhaust gas and the flow direction of the hot air are arranged perpendicularly. This arrangement effectively improves the heat exchange effect and ensures that the circulating hot air before catalysis can be quickly heated up.

[0074] In this example, the secondary catalytic combustion component 51 and the heat exchange component 52 are arranged in the second channel 502 and above the heat exchange area q2, and the secondary catalytic combustion component 51 and the heat exchange component 52 are sequentially distributed from bottom to top. When the exhaust gas is discharged, the exhaust gas is drawn out from the exhaust gas outlet k5 and flows along the exhaust channel 50 and sequentially passes through the heat exchange area q2, the secondary catalytic combustion component 51, and the heat exchange component 52. In this way, the exhaust gas after the primary catalytic combustion undergoes secondary catalytic combustion to generate heat, so as to realize the utilization of waste heat, reduce energy consumption, and save costs.

[0075] In this example, the air conveying component 53 is connected to the outside of the paint oven, the heat exchange component 52, and the lower air duct 200 in sequence, and the air conveying component 53 is used to drive the external air to pass through the heat exchange component 52 to exchange heat with the exhaust gas and heat it up, and flow to the lower air duct 200.

[0076] Specifically, the air delivery component 53 includes an external blower (not shown in the figure, but it is not difficult to imagine), a first transmission pipeline 531 connecting the heat exchange component 52 and the blower, and a second transmission pipeline 532 connecting the heat exchange component 52 and the lower air duct 200, wherein the first transmission pipeline 531 and the second transmission pipeline 532 are staggered at the connection point on the heat exchange component 52. The heat exchange component adopts a conventional heat exchanger, and in this arrangement, fresh cold air and high-temperature exhaust gas after secondary catalytic combustion form convection in the heat exchanger, effectively ensuring the heating effect of cold air.

[0077] In addition, for the convenience of implementation, an air flow channel t1 is formed on the lower air duct 200, and the second transmission pipeline 532 is connected to the air flow channel t1. In this way, the fresh cold air from the outside can be directly discharged into the lower air duct to participate in baking the enameled wire after heat exchange with the exhaust gas and temperature rise, and assist in circulating the hot air to ensure that the enameled wire is heated evenly and stably.

[0078] Specifically, the airflow channel t1 is arranged near the feed port 1a. When the enameled wire passes through the feed port and enters the lower air duct, it will inevitably cause the temperature near the feed port to change. The advantage of this arrangement is that the temperature near the feed port can be compensated to ensure that the temperature near the feed port is consistent with the entire furnace.

[0079] Specifically, the airflow channel t1 extends downward from the top of the lower air duct 200 and obliquely toward the feed port 1a, and the inner diameter of the airflow channel t1 gradually narrows downward. This arrangement increases the input pressure and can drive the air that has been heated up by heat exchange to quickly enter the lower air duct.

[0080] It should be noted that in the waste gas treatment unit of this embodiment, a secondary heat exchange component 54 located above the heat exchange component 52 can also be arranged in the second channel 502, and the cooperation between the secondary heat exchange component 54 and the air conveying component 53 is the same as that of the heat exchange component 52, except that the waste gas passes upward through the secondary heat exchange component 54, and the external fresh cold air passes through the secondary heat exchange component 54 synchronously for heat exchange and temperature rise before flowing into the external drying furnace. This arrangement is used for heating the external drying furnace, realizing multiple utilization of waste heat of the waste gas, and further saving energy.

[0081] Combination Figures 7 to 13 As shown, the cooling and traction system ⑦ is arranged at the wire outlet of the furnace B1 of the paint baking furnace and is used to pull and cool the enameled wire, and the cooling and traction system ⑦ includes a traction frame C1, a traction roller C2, a driving component C3, and an air supply component C4.

[0082] Combination Figures 14 to 19 The traction frame C1 includes a base C10, an intermediate bracket C11 and a side bracket C12 respectively fixedly arranged on the base C10; the traction roller C2 includes a roller C20, a first rotating shaft C21 and a second rotating shaft C22 respectively fixedly connected to both ends of the roller C20, wherein the center lines of the roller C20, the first rotating shaft C21 and the second rotating shaft C22 coincide; the driving component C3 adopts a motor and is used to drive the roller C20 to rotate around its own center line; the air supply component C4 adopts a blower.

[0083] Specifically, the interior of the traction roller C2 is hollow and forms a ventilation cavity q3, and an air inlet k6 and an air outlet k7 respectively connected to the ventilation cavity q3 are formed on the traction roller C2; the air supply component C4 is connected to the air inlet k6, and when air is supplied, the cooling airflow flows from the air inlet k6 along the ventilation cavity q3 and is discharged from the air outlet k7, and a plurality of enameled wires are distributed side by side on the traction roller C2 along the flow direction of the airflow in the ventilation cavity q3.

[0084] Specifically, the middle bracket C11 includes a first layer plate 111 and a second layer plate 112 arranged side by side and spaced apart, and an edge sealing plate sealed between the peripheries of the first layer plate 111 and the second layer plate 112, wherein an air guide channel t2 extending up and down is formed between the first layer plate 111, the second layer plate 112 and the edge sealing plate, and a connecting port k7 connected to the air guide channel t2 is formed at the lower part of the edge sealing plate; there are two side brackets C12 and they are respectively arranged on both sides of the middle bracket C11, wherein a traction station cooperating with the traction roller C2 is formed between each side bracket C12 and the middle bracket C11, and there are two traction rollers C2 and they are correspondingly installed in the two traction stations.

[0085] Specifically, the roller C20 includes a plurality of roller bodies C200 corresponding to a plurality of enameled wires, wherein each roller body C200 has a tapered portion that gradually narrows along the horizontal direction, and the angle between the generatrix of the tapered portion and its own centerline is 0.5°~2°, and the joint between two adjacent roller bodies C200 is stepped. In some specific embodiments, the tapered portion is gradually widened along the airflow direction, and the angle between the generatrix of the tapered portion and its own centerline is 1°; the surface of each roller body C200 is hardened, such as spraying ceramics, spraying zirconium oxide, spraying tungsten carbide, electroplating hard chrome, etc. With this arrangement, the traction roller can ensure the surface tension of the enameled wire and effectively improve the transmission stability of the enameled wire.

[0086] Specifically, the ventilation cavity q3 passes through the roller C20 in the horizontal direction, and the air inlet k6 and the air outlet k7 are formed at the opposite ends of the roller C20, respectively. The outer periphery of the end of the roller C20 near the air outlet k7 is provided with a protective ring h, wherein the protective ring h is provided with a plurality of through holes h0 at intervals in the circumferential direction. When exhausting, the airflow passes through the exhaust port k2 and is discharged from the through hole h0. This arrangement ensures uniform cooling of the traction roller and effectively improves the quality of the enameled wire; at the same time, by providing the protective ring, the air outlet is effectively prevented from being blocked, and the cleaning is simple and convenient.

[0087] At the same time, for the convenience of installation, the two ends of the ventilation cavity q3 are respectively provided with a first connecting plate b1 and a second connecting plate b2 fixedly connected to the inner wall of the roller C20, wherein the first rotating shaft C21 and the second rotating shaft C22 are respectively fixedly connected to the first connecting plate b1 and the second connecting plate b2, and are rotatably connected to the corresponding side bracket C12 and the middle bracket C11 through bearings; an air inlet k6 is formed on one of the first connecting plate b1 and the second connecting plate b2, and an air outlet k7 is formed on the other of the two. In some specific embodiments, the air inlet k6 is formed on the first connecting plate b1, and the air outlet k7 is formed on the second connecting plate b2, and the air inlet k6 and the air outlet k7 are respectively multiple and distributed in a circular array around the center line of the roller C20; the second connecting plate b2 is also welded with a fan blade b20, and when air is supplied, the air flow passes through the fan blade b20 and forms a spiral air flow to be discharged from the air outlet k7. This arrangement facilitates the discharge of air flow in the ventilation cavity, avoids backflow, and ensures the cooling effect.

[0088] In addition, the connection port k7 on the air guide channel t2 is located below the air inlet k6, and the air supply component C4 is connected to the connection port k7 through the soft connector r and communicates with the air guide channel t2. When air is supplied, the air flows from bottom to top along the air guide channel t2 and passes through the air inlet k6 to enter the ventilation cavity q3. In some specific embodiments, the soft connector r is a hose. This arrangement prevents the vibration generated by the operation of the air supply component from being brought to the traction roller.

[0089] In this example, the wire taking-up system ⑧ is arranged on one side of the cooling and traction system ⑦ and has multiple wire taking-up stations corresponding to the multiple wire releasing stations, wherein each wire taking-up station is provided with a chassis D1, a wire taking-up unit D2, a wire taking-up auxiliary unit D3, and a wire arrangement unit D4.

[0090] Combination Fig.15 As shown, the chassis D1 includes a shell D10 and a disk body D11 that is rotatable around its own center line, wherein a space is formed between the shell D10 and the disk body D11, and the shell D10 and the disk body D11 are made of iron or aluminum. In some specific embodiments, the disk body D11 is connected to the shell D10 via a spindle s1, wherein the spindle s1 is driven to rotate by a micro-reduction motor e1 with a brake, thereby driving the disk body D11 to rotate clockwise to implement disk replacement, wherein each time the disk is replaced, the rotation angle of the disk body D11 is 90°.

[0091] In this example, there are four groups of wire-taking units D2, and the four groups of wire-taking units D2 are evenly spaced and distributed on the disk body D11 around the center line of the disk body D11, wherein each group of wire-taking units D2 includes a turntable D20 parallel to the disk body D11 and a wire-catching component D21, and the center of the turntable D20 is provided with a positioning axis s2 perpendicular to the disk body D11, and the wire-taking disk P is sleeved on the positioning axis s2 and moves synchronously with the turntable D20. In some specific embodiments, four wire-taking motors e2 are arranged in the space between the housing D10 and the disk body D11, and the four wire-taking motors e2 are connected to the four turntables D20 in a one-to-one correspondence, wherein each wire-taking motor e2 adopts a long-axis variable frequency motor, and when winding the wire, the wire-taking motor e2 drives the corresponding turntable D20 to rotate clockwise, and the wire-taking disk P rotates clockwise synchronously therewith and winds the wire.

[0092] Specifically, the turntable D20 is made of aluminum or hard plastic. The wire catching component D21 is disposed on the turntable D20 and close to the edge of the turntable D20. The wire catching component D21 can adopt various common wire catching structures. In some specific embodiments, the wire catching component D21 includes a first body 211 fixed on the turntable D20, and a second body 212 elastically connected to the first body 211 through a spring t3. When catching the wire, the enameled wire is clamped between the first body 211 and the second body 212 (see Fig.16 ).

[0093] The above-mentioned reel changing action of the chassis D1 and the wire taking-up action of the wire taking-up unit D2 are both controlled by PLC programming.

[0094] In this example, there are four groups of wire-taking auxiliary units D3, and one group of wire-taking auxiliary units D3 is arranged between each two adjacent groups of wire-taking auxiliary units D2. Each group of wire-taking auxiliary units D3 includes a first wire-blocking component D31, a second wire-blocking component D32, and a wire-pressing component D33 that are arranged in a staggered manner, wherein the first wire-blocking component D31 is arranged close to one of the two corresponding adjacent turntables D20 and forms a limiting area q4 of the enameled wire x with the wire-pressing component D33, the second wire-blocking component D32 is arranged close to the other of the two corresponding adjacent turntables D20 and is used to separate the enameled wire x from the wire-catching component D21 on the corresponding turntable D20, and the wire-pressing component D33 is used to press the enameled wire x toward the disk body D11. When taking up the wire, the wire-taking disk P to be switched is placed on one of the two corresponding adjacent turntables D20 close to the first wire-blocking component D31, and the wire-taking disk P connected to the wire-arranging unit D4 is placed on one of the two corresponding adjacent turntables D20 close to the second wire-blocking component D32.

[0095] Specifically, the first wire blocking component D31 includes a first wire blocking rod perpendicular to the disk body D11, wherein the first wire blocking rod is rotatably connected to the disk body D11 from one end. In some other specific embodiments, the first wire blocking rod can also be a wear-resistant rod fixedly connected to the disk body D11 from one end, wherein the surface of the wear-resistant rod is sprayed or electroplated with a wear-resistant material, such as hard chrome, ceramic, tungsten carbide, zirconium oxide, etc.

[0096] Specifically, the second wire blocking component D32 includes a second wire blocking rod fixedly connected to the surface of the disk body D11, wherein the second wire blocking rod includes a first rod body 321 vertically connected to the disk body D11, and a second rod body 322 connected to the non-end of the first rod body 321, a hook portion is formed between the first rod body 321 and the second rod body 322, and the hook portion emerges from the corresponding wire catching component D21 on the rotating disk D20, and when the wire pressing component D33 presses the enameled wire x, the enameled wire x hangs on the corresponding hook portion. This arrangement effectively prevents the enameled wire from falling off and improves reliability.

[0097] Combination Fig.17 As shown, the wire pressing component D33 is arranged on the outer side of the first wire blocking component D31, and includes a fixed seat 330, a first connecting rod 331, a second connecting rod 332, an elastic member, and a pressure rod 333, wherein the fixed seat 330 is fixedly connected to the disk body D11, the first connecting rod 331 is rotatably connected to one side of the fixed seat 330, the pressure rod 333 is rotatably connected to the other side of the fixed seat 330, the second connecting rod 332 is connected between the first connecting rod 331 and the pressure rod 333, and the elastic member is connected between the first connecting rod 331 and the fixed seat 330. The pressure rod 333 has a first state and a second state. When changing the disk, the pressure rod 333 is in the first state and presses the enameled wire x; when the wire is normally collected, the pressure rod 333 is in the second state and avoids the enameled wire x, wherein the rotation of the first connecting rod 331 can drive the second connecting rod 332 to drive the pressure rod 333 to switch between the first state and the second state. In some specific embodiments, the change angle of the pressure rod 333 between the first state and the second state is 90°.

[0098] Furthermore, a top block f located on one side of the disk body D11 is fixedly provided on the housing D10. When changing the disk, the first connecting rod 331 in the corresponding wire pressing component D33 contacts the top block f from one end and rotates relatively with the clockwise rotation, and the second connecting rod 332 drives the pressing rod 333 to move to the first state; when winding the wire normally, the first connecting rod 331 in the corresponding wire pressing component D33 is separated from the top block f, and the elastic member drives the first connecting rod 331 to reset, and the pressing rod 333 is in the second state. With this arrangement, when changing the disk, the pressing rod can be automatically pressed down only by rotating the disk body to the corresponding position, which has a simple and reliable structure and low installation and implementation costs.

[0099] In this example, the wire arrangement unit D4 can be arranged above the disk body D11 or on one side of the disk body D11. Here, the wire arrangement unit D4 is arranged above the disk body D11 as an example. The wire arrangement unit D4 includes a wire arrangement arm D40 movably arranged above the disk body D11, a wire arrangement wheel D41 arranged on the wire arrangement arm D40 and moving synchronously with the wire arrangement arm D40, and a tension wheel D42 for controlling the tension of the enameled wire x. The disk body D11 rotates and drives the wire take-up reels P in the four wire take-up units D2 to move in a clockwise direction to the top and connect with the wire arrangement wheel D41 in sequence, and the length of the enameled wire between the wire arrangement wheel D41 and the corresponding wire take-up reel P remains constant. In some other specific embodiments, the wire arrangement arm D40 can also be arranged on one side of the disk body D11.

[0100] Specifically, the wire arranging arm D40 is driven by a servo motor e3 and a stepper motor e4 and reciprocates along the up and down directions and the centerline direction of the corresponding wire take-up reel P. In some specific embodiments, the driving mode may be various common driving modes, for example, guide rails are respectively provided in the up and down directions and the centerline direction of the corresponding wire take-up reel P, and the wire arranging arm D40 is slidably connected to the corresponding guide rails.

[0101] At the same time, the cable arrangement arm D40 is in a C shape with its opening facing the plate body, wherein infrared ray emitters a are respectively arranged at both ends of the C shape. This arrangement realizes automatic distance measurement with high distance measurement accuracy, effectively ensuring accurate cable arrangement.

[0102] Combination Fig.19 As shown, the cable arrangement unit D4 also includes a second swing arm 43, a second counterweight block 44 arranged on the second swing arm 43, and two limit rods 45 spaced apart from each other, wherein the tension wheel D42 is connected to one end of the second swing arm 43, and the other end of the second swing arm 43 is limited between the two limit rods 45.

[0103] The working principle of the above-mentioned take-up system⑧ is as follows:

[0104] During normal wire winding, the wire winding reel P in the wire winding state is located at the highest position and connected to the wire arranging wheel D41, and the wire winding reel P to be switched is located on the left side. At this time, the wire arranging arm D40 drives the wire arranging wheel D41 to move along the up and down directions and the direction of the center line of the corresponding wire winding reel P to implement wire winding; when changing the reel, the wire arranging arm D40 is reset, and the reel body D11 rotates 90° clockwise, the wire winding reel P in the wire winding state moves to the lower right, and the wire winding reel P to be switched moves to the upper right, and the wire winding reel P in the wire winding state and the wire winding reel P to be switched move to the upper right. The first wire blocking component D31 limits the enameled wire x between the first wire blocking component D31 and the wire pressing component D33, the wire pressing component D33 presses the enameled wire x toward the disk body D11, and the second wire blocking component D32 blocks the enameled wire x to prevent the enameled wire x from being caught by the wire catching component D21 on the turntable D20 where the take-up disk P in the take-up state is located, until the enameled wire x is caught by the wire catching component D21 on the turntable D20 where the take-up disk P to be switched is located, and the wire arranging and taking-up process of the next roll of enameled wire is automatically started.

[0105] In addition, in some other specific embodiments, the pay-off system ①, the painting system ⑤, the baking system ⑥, the cooling and traction system ⑦, and the take-up system ⑧ are arranged in sequence in the horizontal direction, the wire drawing system ② is arranged above the pay-off system ①, and the annealing system ④ is arranged below the baking system ⑥.

[0106] Therefore, this embodiment has the following advantages:

[0107] 1. Effectively solve the problems of wire breakage, cooling failure, and wire reel replacement in enameled wire production, ensuring that the enameling machine can achieve long-term continuous and stable operation under unattended conditions, and the workers' workload is only to replace the wire drawing masterbatch and unload the finished products, which greatly reduces the labor intensity of workers, reduces costs, and improves production efficiency;

[0108] 2. Support the supply of large-capacity bare copper wire busbars, so that the bare wire supply time is long, without wire breakage and less joints;

[0109] 3. The wire drawing stations are distributed and separated from each other, which effectively reduces the floor space of the wire drawing machine and meets the placement requirements of workshops of manufacturers of different sizes. The upper and lower wire drawing stations do not affect each other. When one of the wire drawing stations is disconnected, the other wire drawing stations can continue to work.

[0110] 4. Ensure that the wire tension of each process of the enameling machine remains stable and matched to avoid wire breakage;

[0111] 5. By alternately starting and stopping the heating components and the cold air supply components, the temperature of the circulating hot air in the furnace of the paint baking furnace is effectively guaranteed to remain stable, so as to ensure the quality of the paint baking and improve the yield rate;

[0112] 6. By forming a cooling airflow in the ventilation cavity inside the traction roller to replace water cooling, the temperature of the traction roller surface and the enameled wire can be taken away and discharged through the cooling airflow, effectively improving the heat dissipation efficiency. In this way, the cooling effect of the traction roller and the enameled wire is guaranteed, and water resources can be saved at the same time;

[0113] 7. By setting the first wire blocking component and the wire pressing component on the wire taking-up system, the position of the enameled wire can be controlled to ensure that the wire taking-up reel to be switched can capture the enameled wire, effectively improving the success rate of reel change; at the same time, by setting the second wire blocking component, the problem of enameled wire breakage during reel change can be effectively avoided, ensuring continuous wire arrangement and taking-up, reducing the labor intensity of workers and improving production efficiency;

[0114] 8. By adopting the wire take-up system of the present application, the enameling machine can run continuously for more than 8 hours without unloading the reel;

[0115] 9. Simple and reliable structure, low installation and implementation cost.

[0116] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A medium-sized multi-head enameling machine that runs continuously and unattended, comprising a pay-off system, a wire drawing system, a cleaning system, an annealing system, a painting system, a baking system, a cooling and pulling system, and a take-up system that are connected in sequence, wherein the pay-off system has a plurality of pay-off stations, characterized in that: The wire drawing system has a plurality of wire drawing stations corresponding to the plurality of wire unwinding stations, wherein the plurality of wire drawing stations are spaced apart from each other, and the wire drawing system includes a wire drawing unit corresponding to each wire drawing station, and a tension control unit corresponding to each group of wire drawing units and used to control the tension of the bare wire; The cooling traction system includes a traction roller with a hollow interior and a ventilation cavity, and an air supply component, wherein the traction roller is also formed with an air inlet and an air outlet respectively connected to the ventilation cavity; the air supply component is connected to the air inlet, and when air is supplied, the cooling air flows from the air inlet along the ventilation cavity and is discharged from the air outlet, and a plurality of bare wires are distributed side by side on the traction roller along the flow direction of the air flow in the ventilation cavity; The wire-taking system includes a chassis, a plurality of wire-taking units spaced apart on the chassis, a wire-taking auxiliary unit disposed between each two adjacent wire-taking units, and a wire-arranging unit for arranging wires, wherein each wire-taking unit includes a turntable and a wire-catching component disposed on the turntable, the wire-taking turntable is positioned on the turntable, and each wire-taking auxiliary unit includes a first wire-blocking component, a second wire-blocking component, and a wire-pressing component disposed in a staggered manner, wherein the chassis is used to drive the plurality of turntables to be connected with the wire-arranging unit in sequence, and when changing the turntables, the first wire-blocking component is disposed close to one of the two adjacent turntables and forms a limiting area for the enameled wire with the wire-pressing component, the second wire-blocking component is disposed close to the other of the two adjacent turntables and is used to separate the enameled wire from the wire-catching component on the corresponding turntable, and the wire-pressing component is used to press the enameled wire toward the chassis.

2. The continuously running unattended small and medium-sized multi-head enameling machine according to claim 1 is characterized in that: The wire-paying system, wire-drawing system, painting system, baking system, cooling and traction system, and wire-taking system are arranged in sequence in the horizontal direction, and the annealing system is arranged above the wire-paying system; or, the wire-paying system, the painting system, baking system, cooling and traction system, and wire-taking system are arranged in sequence in the horizontal direction, the wire-drawing system is arranged above the wire-paying system, and the annealing system is arranged below the baking system.

3. The continuously running unattended small and medium-sized multi-head enameling machine according to claim 1 is characterized in that: Each of the wire drawing stations has a wire inlet and a wire outlet; each group of the wire drawing units includes a wire wheel, a wire drawing die connected to the wire wheel, and a lubricating component for spraying wire drawing oil onto the wire wheel and the wire drawing die respectively; each group of the tension control unit is arranged at the wire outlet of the corresponding wire drawing station, and includes a traction wheel and a tension wheel movably arranged up and down, wherein each of the bare wires passes through the corresponding traction wheel and the tension wheel in sequence after passing through the wire outlet.

4. The continuously running unattended small and medium-sized multi-head enameling machine according to claim 3 is characterized in that: In each group of the wire drawing units, there are two wire wheels and they are arranged side by side and spaced apart in the horizontal direction, and the wire drawing die is arranged between the two wire wheels; and / or, the wire wheel adopts a tower wheel; and / or, the wire drawing die has a plurality of channels, and the plurality of channels are spaced apart along the center line direction of the wire wheel; and / or, the lubrication component is arranged above the wire wheel and the wire drawing die, and the wire drawing oil is sprayed from top to bottom; and / or, each group of the tension control unit also includes a rocker arm that can be flipped up and down, and a counterweight block detachably connected to the rocker arm, wherein the tension wheel is connected to the rocker arm.

5. The continuously running unattended small and medium-sized multi-head enameling machine according to claim 1 is characterized in that: The ventilation cavity passes through the traction roller in a horizontal direction, and the air inlet and the air outlet are respectively formed at opposite ends of the traction roller.

6. The continuously running unattended small and medium-sized multi-head enameling machine according to claim 5 is characterized in that: A first connecting plate and a second connecting plate are respectively provided at the two ends of the ventilation cavity; the traction roller includes a roller forming the ventilation cavity, a first rotating shaft, and a second rotating shaft, wherein the air inlet is formed on one of the first connecting plate and the second connecting plate, and the air outlet is formed on the other of the two, and the first rotating shaft and the second rotating shaft are respectively fixedly connected to the first connecting plate and the second connecting plate.

7. The continuously running unattended small and medium-sized multi-head enameling machine according to claim 1 is characterized in that: The wire pressing component is arranged on the outer side of the first wire blocking component, and when changing the disc, the enameled wire is limited between the corresponding first wire blocking component and the wire pressing component; and / or, the first wire blocking component includes a first wire blocking rod perpendicular to the chassis, wherein the first wire blocking rod is fixedly connected or rotatably connected to the chassis from one end.

8. The continuously running unattended small and medium-sized multi-head enameling machine according to claim 1 is characterized in that: The second wire blocking component comprises a second wire blocking rod formed with a hook, wherein the hook emerges from the corresponding wire catching component on the rotating disk, and when the wire pressing component presses the enameled wire, the enameled wire hangs on the corresponding hook; And / or, the wire pressing component includes a fixing seat fixedly connected to the chassis, and a pressing rod movably connected to the fixing seat, wherein the pressing rod has a first state and a second state, when changing the disc, the pressing rod is in the first state and presses the enameled wire; when winding the wire normally, the pressing rod is in the second state and avoids the enameled wire.

9. The continuously running unattended small and medium-sized multi-head enameling machine according to claim 1 is characterized in that: The wire arranging unit further includes a wire arranging arm disposed above or on one side of the chassis, and a driving component for driving the wire arranging arm, wherein a wire arranging wheel is disposed on the wire arranging arm and moves synchronously with the wire arranging arm; and / or the length of the enameled wire between the wire arranging wheel and the corresponding wire take-up reel remains constant.

10. The continuously running unattended small and medium-sized multi-head enameling machine according to claim 9 is characterized in that: The cable arrangement arm is in a C-shape with its opening facing the chassis, wherein two ends of the C-shape are respectively provided with infrared ray emitters.

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