阅读说明：本技术 一种可快速烘干的电机线圈加工装置 (Motor coil processingequipment that can fast drying ) 是由 季燕琴 于 2018-10-16 设计创作，主要内容包括：本发明公开了一种可快速烘干的电机线圈加工装置,包括箱体,所述箱体的两侧分别设有输送机构,所述箱体的侧壁上分别设有进料口和向下倾斜的出料口,所述进料口和出料口的上方分别设有活动门,所述箱体侧边设有烘干机构,所述烘干机构设于输送机构的上方；通过上述机构的设置,可以有效的将浸漆完毕后的电机线圈进行烘干,直至完全烘干,以便于对电机线圈进行外输,提高电机线圈的成品效率。(The invention discloses a motor coil processing device capable of being dried quickly, which comprises a box body, wherein conveying mechanisms are respectively arranged on two sides of the box body, a feeding hole and a downward-inclined discharging hole are respectively formed in the side wall of the box body, movable doors are respectively arranged above the feeding hole and the discharging hole, a drying mechanism is arranged on the side edge of the box body, and the drying mechanism is arranged above the conveying mechanisms; through the setting of above-mentioned mechanism, can effectually dry the motor coil after finishing dipping paint, dry until completely to carry out outer defeated to motor coil, improve motor coil's finished product efficiency.)

1. A motor coil processing device capable of being dried quickly comprises a box body (1), wherein conveying mechanisms are arranged on two sides of the box body (1) respectively, a feeding hole (12) and a discharging hole (13) which is inclined downwards are arranged on the side wall of the box body (1) respectively, and a movable door (14) is arranged above the feeding hole (12) and the discharging hole (13) respectively; the method is characterized in that: a drying mechanism is arranged on the side edge of the box body (1), and the drying mechanism is arranged above the conveying mechanism; the drying mechanism comprises a heating chamber (6), a heating chamber (61) arranged at the top of the heating chamber (6), a plurality of heating plates (65) arranged in the heating chamber (61) at equal intervals and an air injection pipe (63) arranged at the top of the heating chamber (6); one end of the heating plate (65) is arranged in a suspended mode, the other end of the heating plate (65) is fixedly arranged at the top of the heating cavity (61), the air injection pipe (63) is connected with the heating cavity (61), and a plurality of air injection heads (64) are arranged at the bottom of the air injection pipe (63) at equal intervals; the conveying structure comprises an X-shaped support frame (21) arranged on the side edge of the box body (1), a fixed seat (22) fixedly arranged above the X-shaped support frame (21), a plurality of rollers (23) arranged above the fixed seat (22) at equal intervals and a clamping device arranged above the rollers (23); the clamping device comprises a supporting base (5), a first sliding groove (51) arranged at the bottom of the supporting base (5), a second sliding groove (52) arranged above the first sliding groove (51) and a third sliding groove (53) arranged above the second sliding groove (52), wherein a plurality of arc-shaped grooves (511) are formed in the bottom of the first sliding groove (51) at equal intervals, and two movable clamping components are symmetrically arranged on the supporting base (5); a lifting mechanism, a material placing mechanism and a heating cover (11) are arranged in the box body (1); the lifting mechanism comprises a first driving motor (31) arranged on the inner top wall of the box body (1), a first threaded rod (32) arranged on the output end of the first driving motor (31), and a second threaded rod (33) movably connected with the first threaded rod (32), wherein a first transmission gear (321) and a second transmission gear (331) which are meshed with each other are respectively arranged on the first threaded rod (32) and the second threaded rod (33); the material placing mechanism comprises a material placing box (41) movably connected with the first threaded rod (32) and the second threaded rod (33), a filter screen (42) arranged on the inner bottom surface of the material placing box (41) and a first air cylinder (43) arranged at the bottom of the material placing box (41), and the material placing box (41) is arranged below the heating cover (11); a second driving motor (221) is arranged at the bottom of the fixed seat (22), a third transmission gear (231) is arranged on the side edge of the roller (23), the roller (23) is movably connected with the fixed seat (22), a fourth transmission gear (222) is arranged at the output end of the second driving motor (221), and each third transmission gear (231) is connected with each fourth transmission gear (222) through a transmission belt (223); the side wall of the material placing box (41) is fixedly provided with a movable block (411) matched with the first threaded rod (32) and the second threaded rod (33), the bottom of the filter screen (42) is movably connected with a cylinder rod of the first cylinder (43), the filter screen (42) is movably connected with the bottom of the material placing box (41), and the movable block (411) is used for driving the material placing box (41) to move up and down.

2. The fast drying motor coil processing device according to claim 1, characterized in that: the movable door (14) is fixedly connected with a cylinder rod of a second cylinder (15) arranged on the side wall of the box body (1), and clamping grooves (16) are respectively arranged at the bottoms of the feeding hole (12) and the discharging hole (13).

3. The fast drying motor coil processing device according to claim 2, characterized in that: the bottom of the movable door (14) is provided with a protruding part matched with the clamping groove (16), the clamping groove (16) is provided with a sealing gasket (161), and the movable door (14) is larger than the feeding hole (12) and the discharging hole (13).

Technical Field

The invention belongs to the field of motor production equipment, and particularly relates to a motor coil processing device capable of quickly drying.

Background

The motor coil is the weakest part in the motor structure, and in order to improve the moisture resistance, corrosion resistance and insulation strength of the motor coil, improve the mechanical strength, thermal conductivity and heat dissipation effect, delay aging and the like, the rewound motor coil needs to be subjected to dip coating treatment; and the paint dipping and drying are required to be carried out strictly according to the insulation treatment process so as to ensure that the insulating paint has good permeability, smooth paint film surface and high mechanical strength, so that the motor coil is bonded into a solid whole.

The device can effectively and automatically dip and dry the motor coil, effectively improves the conveying efficiency of the motor coil, improves the dip coating efficiency of the motor coil and the external conveying efficiency of the motor coil, can adapt to various motor coils with different specifications, greatly enhances the application range of the device and increases the practicability of the device; however, the device utilizes the natural penetration of the insulating varnish into the motor coil during the dipping process, and the penetration method has slow penetration and low penetration efficiency.

The existing device can effectively realize the sealing of the box body and the reduction of the air pressure in the box body, so that the formation of a vacuum environment in the box body can be realized, the paint dipping effect of the motor coil can be effectively enhanced, and the paint dipping efficiency of the motor coil is improved; the device still needs to carry out effectual complete drying after the dip coating finishes for motor coil's sealed complete molding, so that better carrying out the outer defeated.

Disclosure of Invention

The invention provides a motor coil processing device capable of quickly drying in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a motor coil processing device capable of being dried quickly comprises a box body, wherein conveying mechanisms are arranged on two sides of the box body respectively, a feeding hole and a discharging hole which is inclined downwards are arranged on the side wall of the box body respectively, a movable door is arranged above the feeding hole and the discharging hole respectively, a drying mechanism is arranged on the side edge of the box body, and the drying mechanism is arranged above the conveying mechanisms; through the setting of above-mentioned mechanism, can effectually dry the motor coil after finishing dipping paint, dry until completely to carry out outer defeated to motor coil, improve motor coil's finished product efficiency.

Furthermore, the drying mechanism comprises a heating chamber, a heating chamber arranged at the top of the heating chamber, a plurality of heating plates arranged in the heating chamber at equal intervals and an air injection pipe arranged at the top of the heating chamber; through the setting of above-mentioned structure for motor coil can be through the drying of steam acceleration insulated paint, dries motor coil on can effectually the cylinder, improves motor coil's drying efficiency.

Furthermore, one end of the heating plate is arranged in a hanging manner, the other end of the heating plate is fixedly arranged at the top of the heating cavity, the gas injection pipe is connected with the heating cavity, and a plurality of gas injection heads are arranged at the bottom of the gas injection pipe at equal intervals; through the setting of above-mentioned hot plate, can increase the distance that hot gas flows to in more effectual heating the air, improve the efficiency to the air heating, improve the drying efficiency to the insulating paint on the motor coil simultaneously.

Further, the conveying structure comprises an X-shaped support frame arranged on the side edge of the box body, a fixed seat fixedly arranged above the X-shaped support frame, a plurality of rollers arranged above the fixed seat at equal intervals and a clamping device arranged above the rollers; through the setting to above-mentioned conveying mechanism, can effectual realization to the fixed and effect of carrying of motor coil for motor coil can be stable fix on clamping device, and carry through the cylinder, effectual improvement to motor coil's transport efficiency, strengthened the stationary force to motor coil, make motor coil can be firm reliable dip coating, avoid motor coil to take place to break away from, influence the process of dip coating.

Furthermore, the clamping device comprises a supporting base, a first sliding chute arranged at the bottom of the supporting base, a second sliding chute arranged above the first sliding chute and a third sliding chute arranged above the second sliding chute, wherein a plurality of arc-shaped grooves are arranged at the bottom of the first sliding chute at equal intervals, and two movable clamping assemblies are symmetrically arranged on the supporting base; through the arrangement of the first sliding groove, the second sliding groove and the third sliding groove, the clamping assembly can be fixed in the first sliding groove, the second sliding groove and the third sliding groove, the clamping assembly is effectively prevented from being deviated in the moving process, and the structural stability of the clamping assembly is enhanced.

Furthermore, the movable door is fixedly connected with a cylinder rod of a second cylinder arranged on the side wall of the box body, and the bottoms of the feed inlet and the discharge outlet are respectively provided with a clamping groove; through the setting of above-mentioned structure, can effectual realization dodge gate open and close, the automation of ten minutes, and can strengthen the leakproofness between dodge gate and feed inlet and the discharge gate, improve sealed effect.

Furthermore, the bottom of the movable door is provided with a protruding part matched with a clamping groove, a sealing gasket is arranged on the clamping groove, and the movable door is larger than the feeding hole and the discharging hole; through the arrangement of the structure, the protruding part can be effectively inserted into the clamping groove, so that the sealing property between the movable door and the feed inlet and the discharge outlet can be enhanced, and the air exhaust vacuum effect is improved.

The invention has the following advantages: this motor coil processingequipment convenient to dip coating through the setting of above-mentioned stoving mechanism, can effectually dry the insulating varnish on the motor coil after the dip coating finishes to can be thorough seal motor coil, so that improve motor coil's insulating effect.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the movable block in fig. 1.

Fig. 3 is a schematic structural view of the fixing base and the roller in fig. 1.

Fig. 4 is a schematic structural view of the clamping device in fig. 1.

Fig. 5 is a schematic structural view of the moving rod of fig. 1.

Fig. 6 is an enlarged view of a structure at a in fig. 1.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-6, a fast drying motor coil processing device includes a box 1, two sides of the box 1 are respectively provided with a conveying mechanism, the box 1 is internally provided with a lifting mechanism, a material placing mechanism and a heating cover 11, the conveying mechanism is used for fixedly conveying a motor coil so as to convey the motor coil into the box 1 and dip the motor coil, thereby improving the conveying efficiency of the motor coil, the lifting mechanism is used for moving the motor coil conveyed into the box 1 from a feed port 12 into an insulating paint at the bottom of the box 1 so as to dip the motor coil and improve the dipping efficiency of the motor coil, the material placing mechanism and the heating cover 11 are used for placing the motor coil so as to drive the motor coil and fast dry the motor coil so as to output the motor coil, the dripping of the dipping paint is avoided; above-mentioned heating mantle 11 is connected with external circuit, adopts metal material to make, carries out the heat production through resistance heating's mode, and heating mantle 11 only the bottom is equipped with the opening for release heat, reducible thermal giving off, above-mentioned heating mantle 11 temperature only can play the effect of carrying out half stoving to motor coil, stops the drippage of the insulating varnish on the motor coil promptly, and the effect that needs outside drying equipment is still dried completely, and this embodiment is not repeated in detail.

The conveying structure comprises an X-shaped supporting frame 21 arranged on the side edge of the box body 1, a fixed seat 22 fixedly arranged above the X-shaped supporting frame 21, a plurality of rollers 23 arranged above the fixed seat 22 at equal intervals and a clamping device arranged above the rollers 23, and through the arrangement of the conveying mechanism, the fixing and conveying effects of the motor coil can be effectively realized, so that the motor coil can be stably fixed on the clamping device and conveyed by the rollers 23, the conveying efficiency of the motor coil is effectively improved, the fixing force of the motor coil is enhanced, the motor coil can be firmly and reliably subjected to paint dipping, and the motor coil is prevented from being separated from the clamping device to influence the paint dipping process; the two rods of the X-shaped support frame 21 can rotate around the rotating shaft, and the clamping device is directly placed above the roller 23 and is in contact with the roller 23.

The lifting mechanism comprises a first driving motor 31 arranged on the inner top wall of the box body 1, a first threaded rod 32 arranged on the output end of the first driving motor 31 and a second threaded rod 33 movably connected with the first threaded rod 32, the first threaded rod 32 and the second threaded rod 33 are respectively provided with a first transmission gear 321 and a second transmission gear 331 which are meshed with each other, through the arrangement of the lifting mechanism, the material placing mechanism can realize the effect of moving up and down, so that the motor coil can move downwards into insulating paint to be dipped in the insulating paint, and can also move upwards into the heating cover 11 to be quickly dried, the paint dipping efficiency of the motor coil can be effectively improved, and the time required by drying the motor coil is effectively reduced; the first driving motor 31 drives the first threaded rod 32 to rotate through the output shaft, the first threaded rod 32 drives the first transmission gear 321 to rotate, the first transmission gear 321 drives the second transmission gear 331 to rotate, and the second transmission gear 331 drives the second threaded rod 33 to rotate.

Put the material mechanism include with first threaded rod 32 and second threaded rod 33 swing joint put workbin 41, locate the filter screen 42 of putting on the workbin 41 bottom and locate the first cylinder 43 of putting workbin 41 bottom, it locates the below of heating mantle 11 to put workbin 41, above-mentioned workbin 41 of putting is used for placing clamping device, make the motor coil on the clamping device can receive the drive of putting workbin 41 and reciprocate, the automation that motor coil soaked the lacquer has been increased, above-mentioned filter screen 42 is used for supporting clamping device, and can avoid insulating lacquer to accumulate on filter screen 42, in case dry, insulating lacquer on the filter screen 42 dries the sclerosis, and aggravate the loss of insulating lacquer, the consumption of cost is reduced, above-mentioned first cylinder 43 is used for driving filter screen 42 and inclines, so that clear away remaining insulating lacquer on the filter screen 42 and make clamping device can directly slide to discharge gate 13 department and export, the efficiency of conveying the motor coil is improved; the filter screen is a common filter screen in the current market, and is not described herein for the prior art.

The bottom of the fixed seat 22 is provided with a second driving motor 221, the side edge of the roller 23 is provided with a third transmission gear 231, the roller 23 is movably connected with the fixed seat 22, the output end of the second driving motor 221 is provided with a fourth transmission gear 222, and each third transmission gear 231 is connected with the fourth transmission gear 222 through a transmission belt 223; the second driving motor 221 drives the fourth transmission gear 222 to rotate through the output shaft, the fourth transmission gear 222 drives the third transmission gear 231 to rotate through the transmission belt 223, the third transmission gear 231 drives the drum 23 to rotate, the outer circumferential surface of the drum 23 is a friction surface, so as to drive the clamping device to move, and the surface of the transmission belt 223 is provided with a groove engaged with the tooth on the gear, so as to enhance the transmission effect of the transmission gear.

The clamping device comprises a supporting base 5, a first sliding groove 51 arranged at the bottom of the supporting base 5, a second sliding groove 52 arranged above the first sliding groove 51 and a third sliding groove 53 arranged above the second sliding groove 52, wherein a plurality of arc-shaped grooves 511 are arranged at the bottom of the first sliding groove 51 at equal intervals, two movable clamping components are symmetrically arranged on the supporting base 5, and through the arrangement of the first sliding groove 51, the second sliding groove 52 and the third sliding groove 53, the clamping components can be fixed in the first sliding groove 51, the second sliding groove 52 and the third sliding groove 53, so that the clamping components are effectively prevented from being deviated in the moving process, and the structural stability of the clamping components is enhanced; the distance between the second sliding grooves 52 is greater than the distance between the first sliding grooves 51 and the third sliding grooves 53, and the arc-shaped grooves 511 can just block the moving rod 512, so that the moving rod 512 can only move by external force.

The side wall of the material placing box 41 is fixedly provided with a movable block 411 matched with the first threaded rod 32 and the second threaded rod 33, the bottom of the filter screen 42 is movably connected with a cylinder rod of a first cylinder 43, the filter screen 42 is movably connected with the bottom of the material placing box 41, the movable block 411 is used for driving the material placing box 41 to move up and down, and the filter screen 42 is arranged so that the filter screen 42 can be obliquely deflected by the driving of the first cylinder 43, so that a clamping device above the filter screen 42 can be driven to slide down to a conveying mechanism at the discharge port 13, and the motor coils are output; the movable block 411 penetrates through the first threaded rod 32 and the second threaded rod 33 and is meshed with the first threaded rod 32 and the second threaded rod 33, when the first driving motor 31 starts to rotate, the movable block 411 is matched with the first threaded rod 32 and the second threaded rod 33 to convert rotary motion into linear motion, so that the movable block 411 can be lifted, and then the material placing box 41 is lifted; the cylinder rod of the first cylinder 43 is lifted upwards, so that one end of the filter screen 42 is driven to lift upwards, the other end of the filter screen 42 is placed at the top of the material placing box 41, the filter screen 42 is inclined downwards, slides into the material outlet 13 from the material placing box 41, slides onto the roller 23 from the material outlet 13, and the conveying of the clamping device is realized.

The clamping assembly comprises a moving rod 512 arranged in the first sliding groove 51, a moving block 521 arranged in the second sliding groove 52, a fixed rod 531 arranged in the third sliding groove 53 and a clamping block 54 arranged above the fixed rod 531, a supporting column 541 is arranged on the side wall of the clamping block 54, the moving rod 512 is fixedly connected with the moving block 521, the moving block 521 is fixedly connected with the fixed rod 531, a spiral spring 513 fixedly connected with the moving block 521 is arranged in the moving rod 512, the spiral spring 513 is connected with a moving rod head 5121 arranged at the bottom of the moving rod 512, the moving rod 512 can be clamped in an arc-shaped groove 511 at the bottom of the third sliding groove 53 to fix the motor coil, the moving block 521 can freely move in the second sliding groove 52 to play a role in guiding and limiting, so that the clamping assembly is prevented from shifting to influence the movement of the clamping assembly, the fixed rod 531 is used for connecting the clamping blocks 54 and the moving block 521, so that the moving block 521 can drive the clamping blocks 54 to move, the clamping blocks 54 can drive the supporting columns 541 to clamp the motor coil, powerful clamping of the motor coil can be effectively realized through the arrangement of the structure, the stability of the motor coil during paint dipping is improved, the arc-shaped groove 511 can limit the position of the moving rod 512, the moving rod 512 can be clamped at any position, the distance between the two clamping blocks 54 can be adjusted conveniently, the motor coils of different specifications can be clamped, the application range of the clamping device is enlarged, and the practicability of the clamping device is improved; when the motor coil is clamped, the clamping block 54 is pushed to drive the supporting column 541 to be inserted into the motor coil, the clamping block 54 drives the fixing rod 531 to move, the fixing rod 531 drives the moving block 521 to move, the cross sectional area of the moving block 521 is larger than that of the fixing rod 531 and the moving rod 512, the moving block 521 drives the moving rod 512 to move, the moving rod 512 can perform slight deflection motion through the spiral spring 513, the moving rod head 5121 of the moving rod 512 can slightly extend and retract on the moving rod 512 through the limiting block 5122, so that the moving rod 512 slides into the other arc-shaped groove 511 from one arc-shaped groove 511, and the change of the gap between the clamping blocks 54 is realized.

The middle part of the X-shaped support frame 21 is provided with a rotating shaft, the top part of the X-shaped support frame 21 is movably connected with the fixed seat 22, the bottom part of the X-shaped support frame 21 is movably connected with a connecting seat 24 through a rotatable slide block 211, the slide block 211 is movably connected with a second air cylinder 212 arranged on the side wall of the connecting seat 24, and through the arrangement of the structure, the up-and-down stretching effect of the X-shaped support frame 21 can be realized, so that the X-shaped support frame 21 can drive the clamping device above the fixed seat 22 and the fixed seat 22 to move up and down, a motor coil can be more conveniently and effectively fixed on the clamping device, the clamping efficiency of the motor coil is improved, meanwhile, the position of the clamping device at the feed inlet 12 can be freely adjusted, the clamping device can be more effectively conveyed into the box body 1 for dip coating; the top of above-mentioned X type support frame 21 is through a rotatable slider 211 free movement in the first spout 224 of fixing base 22 bottom, the bottom of X type support frame 21 is through the free removal in the second spout 241 of slider 211 bottom connecting seat 24, realize the concertina movement of X type support frame 21, thereby can adjust the height of X type support frame 21, the slider 211 of second cylinder 212 drive X type support frame 21 bottom carries out reciprocating motion, thereby change the angle change of X type support frame 21 bottom, then play the effect that changes the height of X type support frame 21.

The side wall of the box body 1 is respectively provided with a feeding hole 12 and a downward-inclined discharging hole 13, a movable door 14 is respectively arranged above the feeding hole 12 and the discharging hole 13, the movable door 14 can block the feeding hole 12 and the discharging hole 13, the top of the box body 1 is provided with an air extractor, and the box body 1 can be sealed through the arrangement of the structure, so that the air pressure in the box body 1 can be effectively reduced, the vacuum paint dipping of the motor coil in the box body 1 is realized, the paint dipping effect of the motor coil is greatly enhanced, and the motor coil is very practical; the air extracting device comprises an air pump 17, an air extracting cavity 18 arranged in the top wall of the box body 1 and a plurality of air extracting holes 181 arranged at the bottom of the air supply pipeline at equal intervals, the air extracting cavity 18 is connected with an air inlet of the air pump 17, and through the arrangement of the structure, the air pressure in the box body 1 can be effectively reduced, so that the interior of the box body 1 is in a vacuum state, the paint dipping effect of the motor coil can be enhanced, and the paint dipping efficiency is improved; the air pump 17 pumps air, and pumps the air into the pumping cavity 18 through the pumping holes 181, and then pumps the air out of the pumping cavity 18, so as to realize the vacuum effect in the box body 1.

The movable door 14 is fixedly connected with a cylinder rod of a second cylinder 15 arranged on the side wall of the box body 1, the bottoms of the feeding hole 12 and the discharging hole 13 are respectively provided with a clamping groove 16, through the arrangement of the structure, the automatic opening and closing of the movable door 14 can be effectively realized, the automation is very high, the sealing performance between the movable door 14 and the feeding hole 12 and the discharging hole 13 can be enhanced, and the sealing effect is improved; the bottom of the movable door 14 is provided with a protruding part matched with the clamping groove 16, the clamping groove 16 is provided with a sealing gasket 161, the movable door 14 is larger than the feed inlet 12 and the discharge outlet 13, and through the arrangement of the structure, the protruding part can be effectively inserted into the clamping groove 16, so that the sealing performance between the movable door 14 and the feed inlet 12 and the discharge outlet 13 can be enhanced, and the air extraction vacuum effect is improved; the horizontal position of the feeding hole 12 is higher than that of the discharging hole 13, the discharging hole 13 is arranged obliquely downwards, and the clamping device can be better conveyed through the arrangement of the structure, so that the stability and the reliability of the structure can be improved; the second cylinder 15 drives the movable door 14 to ascend to open the feed port 12, the second cylinder 15 drives the movable door 14 to descend to block the feed port 13, the protruding part can be embedded into the clamping groove 16 to form sealing, and the sealing gasket 161 is made of rubber materials.

The side edge of the box body 1 is provided with a drying mechanism, the drying mechanism is arranged above the conveying mechanism, and through the arrangement of the drying mechanism, the motor coil after paint dipping can be effectively dried until the motor coil is completely dried, so that the motor coil can be output conveniently, and the finished product efficiency of the motor coil is improved; the drying mechanism comprises a heating chamber 6, a heating chamber 61 arranged at the top of the heating chamber 6, a plurality of heating plates 65 arranged in the heating chamber 61 at equal intervals and an air injection pipe 63 arranged at the top of the heating chamber 6, wherein the heating plates 65 are made of metal materials and are connected with an external circuit; one end of the heating plate 65 is arranged in a suspended mode, the other end of the heating plate 65 is fixedly arranged at the top of the heating cavity 61, the air injection pipe 63 is connected with the heating cavity 61, a plurality of air injection heads 64 are arranged at the bottom of the air injection pipe 63 at equal intervals, and the arrangement of the heating plate 65 can increase the flowing distance of hot air, so that air can be heated more effectively, the air heating efficiency is improved, and meanwhile, the drying efficiency of insulating paint on a motor coil is improved; after the motor coil finishes dipping paint, only half the effect of drying comes out from discharge gate 13, stops on cylinder 23, and dodge gate 14 closes, and heating chamber 6 releases the hot-air of following the interior production of heating chamber 61, sprays out from jet head 64 through jet-propelled pipe 63, heats the stoving to the insulating paint on the motor coil.