阅读说明：本技术 光固化涂布机生产线 (Photocuring coating machine production line ) 是由 刘少飞 周艺飞 于 2020-12-31 设计创作，主要内容包括：本发明公开一种光固化涂布机生产线,依制程顺序依次包括有材料放卷机组、涂布机构、UV固化烘箱、成品收卷机组；该涂布机构包括机台及设置于机台上的输送装置、压合装置、上胶装置、烘干装置；该压合装置包括主动轮、从动轮、压带、第二驱动单元及升降压合机构,该UV固化烘箱包括支撑架、安装于支撑架上的第一箱体及设置于第一箱体内的UV灯管；该UV灯管朝向第二输送带设置；该UV灯管连接有用于驱动UV灯管沿第二输送带延伸方向移动的移动机构,该移动机构连接于第一箱体；借此,其能根据不同厚度的薄膜进行不同程度的压紧,能适用于不同厚度薄膜的加工,实现了UV灯管的可移动式设计,从而能使UV灯管可往复运动,使烘烤的温度更加均匀。(The invention discloses a production line of a photocuring coating machine, which sequentially comprises a material unreeling unit, a coating mechanism, a UV curing oven and a finished product reeling unit according to the processing sequence; the coating mechanism comprises a machine table, and a conveying device, a pressing device, a gluing device and a drying device which are arranged on the machine table; the pressing device comprises a driving wheel, a driven wheel, a pressing belt, a second driving unit and a lifting pressing mechanism, wherein the UV curing oven comprises a support frame, a first box body arranged on the support frame and a UV lamp tube arranged in the first box body; the UV lamp tube is arranged towards the second conveying belt; the UV lamp tube is connected with a moving mechanism for driving the UV lamp tube to move along the extending direction of the second conveying belt, and the moving mechanism is connected with the first box body; borrow this, it can carry out the not compressing tightly of equidimension according to the film of different thickness, can be applicable to the processing of different thickness films, has realized the movable design of UV fluorescent tube to enable the reciprocating motion of UV fluorescent tube, make the temperature of toasting more even.)

1. The utility model provides a photocuring coating machine production line which characterized in that: the device sequentially comprises a material unreeling unit, a coating mechanism, a UV curing oven and a finished product reeling unit according to the processing sequence;

the coating mechanism comprises a machine table, and a conveying device, a pressing device, a gluing device and a drying device which are arranged on the machine table;

the conveying device comprises a first conveying belt and a first driving unit for driving the first conveying belt to horizontally move; the pressing device comprises a driving wheel, a driven wheel, a pressing belt, a second driving unit and a lifting pressing mechanism, wherein the driving wheel and the driven wheel extend along the conveying direction perpendicular to the first conveying belt, the driving wheel is connected with the second driving unit, the driving wheel is positioned below the driven wheel, the pressing belt winds the driving wheel and the driven wheel, a pressing area for a workpiece to pass through is formed between the outer side of the bottom surface of the pressing belt and the upper surface of the first conveying belt, the lifting pressing mechanism is positioned between the driving wheel and the driven wheel, and the lifting pressing mechanism comprises a pressing block and a third driving unit for driving the pressing block; the third driving unit drives the pressing block to move up and down to form pressing or releasing of the pressing belt, so that the pressing belt moves towards or away from the first conveying belt;

the UV curing oven comprises a support frame, a first box body arranged on the support frame and a UV lamp tube arranged in the first box body; the front side and the rear side of the first box body are respectively provided with an input port and an output port, the support frame is provided with a conveying mechanism for conveying workpieces, the conveying mechanism comprises a second conveying belt, a conveying wheel and a conveying driving unit, the second conveying belt penetrates through the input port to extend into the first box body and extend out of the output port, the second conveying belt is connected to the conveying wheel, the conveying driving unit drives the conveying wheel to rotate, the conveying driving unit is installed on the support frame, and the conveying wheel can be rotatably installed on the support frame; the UV lamp tube is arranged towards the second conveying belt; the UV lamp tube is connected with a moving mechanism for driving the UV lamp tube to move along the extending direction of the second conveying belt, and the moving mechanism is connected with the first box body;

two inboards all are provided with spacing sensor around this first box, and this spacing sensor is installed on the inside wall of first box, and this spacing sensor is located the top of second conveyer belt.

2. The production line of a photocuring coater according to claim 1, characterized in that: the gluing device is positioned on the output side of the pressing device; drying device includes the second box and sets up in fan, the air-supply line of connecting in the fan of second box upper surface, the one end of air-supply line stretches into in the second box.

3. The production line of a photocuring coater according to claim 2, characterized in that: the second box body is arranged on the machine table, two symmetrical openings are formed in the side face of the second box body, one opening of the second box body is connected to the output side of the first conveying belt in an engaging mode, a guide pipe is fixedly arranged at one end, located inside the second box body, of the air inlet pipe, branch pipes which are arranged at equal intervals are fixedly arranged on the outer surface of the guide pipe, and an air collecting cover is fixedly arranged at the bottom of each branch pipe.

4. The production line of a photo-curing coater according to claim 3, wherein: the machine table is internally provided with a collecting box, the collecting box is positioned under the second box body, the inner bottom of the second box body is provided with a circulation port, and the circulation port is communicated with the collecting box.

5. The production line of a photocuring coater according to claim 1, characterized in that: the lifting pressing mechanism further comprises a mounting frame, the front side and the rear side of the mounting frame extend out of the pressing belt and are connected to the machine table through a connecting frame, the third driving unit is mounted on the mounting frame, and the pressing block is connected with the third driving unit through a telescopic rod.

6. The production line of a photocuring coater according to claim 1, characterized in that: the bearing table is arranged in the first conveying belt, the upper end of the bearing table abuts against the inner upper side of the first conveying belt, and the bearing table is arranged right opposite to the pressing device.

7. The production line of a photocuring coater according to claim 1, characterized in that: the moving mechanism comprises a guide rail, a sliding block and a moving driving unit, the guide rail is installed on the inner side of the first box body and located on one side above the second conveying belt, the guide rail extends along the extending direction of the second conveying belt, the sliding block is adaptive to the guide rail, the sliding block is connected to the moving driving unit, the moving driving unit is installed outside the first box body, and the UV lamp tube is connected to the sliding block.

8. The production line of a photocuring coater according to claim 1, characterized in that: the input port and the output port are both provided with a protective door, the protective door is connected with a lifting mechanism, and the lifting mechanism drives the protective door to move up and down.

9. The production line of a photocuring coater according to claim 8, characterized in that: the lifting mechanism comprises a lifting seat, a lifting rod, a lifting driving unit and a connecting block, the lifting seat is arranged on the supporting frame, and the lifting driving unit is arranged on the lifting seat; one end of the lifting rod is connected to the lifting driving unit, and the other end of the lifting rod is connected to the connecting block; the protection door is connected to the connecting block.

10. The production line of a photocuring coater according to claim 1, characterized in that: the material unreeling machine set comprises a double-station unreeling machine and a storage mechanism, wherein the double-station unreeling machine and the storage mechanism are sequentially arranged at one side of the coating mechanism from front to back.

Technical Field

The invention relates to the technical field of coating machines, in particular to a production line of a photocuring coating machine.

Background

The coating machine is mainly used for the surface coating process production of films, paper and the like, and the coating machine is used for coating a layer of glue, paint or ink with a specific function on a coiled substrate, drying and then rolling. The coating machine adopts a special multifunctional coating head, can realize the generation of surface coating in various forms, is provided with a full-speed automatic film receiving mechanism for winding and unwinding, and is automatically controlled by a PLC program tension closed loop. In the coating machine production process, because the thickness of different films is different, need carry out the adaptability adjustment to the film of different thickness, but the adjustment of the coating mechanism among the prior art is comparatively loaded down with trivial details, the mode that adopts artifical manual regulation usually adjusts, such mode work efficiency is low, and can't guarantee the precision, also can realize automatically regulated's coating mechanism a bit, but its mode that adopts the gyro wheel usually compresses tightly the regulation, and the area of contact that the gyro wheel compressed tightly is little, can't guarantee to compress tightly quality and effect. And, in the prior art, in the production process of the coating machine, the workpiece needs to be put into the oven for baking so as to achieve the purpose of drying, however, the lamp tube of the oven in the prior art is usually fixed on the inner top wall of the oven and cannot be adjusted according to the size and the position of the workpiece, so that the temperature close to the lamp tube is high, the temperature far away from the lamp tube is low, the baking temperature is not uniform, the baking of the oven is not facilitated, and the product yield is influenced.

Therefore, a new technology needs to be developed to solve the above problems.

Disclosure of Invention

In view of the above, the present invention is directed to the defects in the prior art, and a main object of the present invention is to provide a production line of a photocuring coater, which solves the problems that the existing coater cannot perform adaptive adjustment on films with different thicknesses, has a small contact area for pressing, and cannot ensure pressing quality and effect, a lamp tube of an oven is usually fixed on an inner top wall of the oven, cannot be adjusted according to the size and position of a workpiece, and thus the temperature near the lamp tube is high, the temperature far away from the lamp tube is low, the baking temperature is uneven, the baking in the oven is not favorable, the product yield is influenced, and the like.

In order to achieve the purpose, the invention adopts the following technical scheme:

a production line of a photocuring coating machine sequentially comprises a material unreeling unit, a coating mechanism, a UV curing oven and a finished product reeling unit according to the processing sequence;

the coating mechanism comprises a machine table, and a conveying device, a pressing device, a gluing device and a drying device which are arranged on the machine table;

the conveying device comprises a first conveying belt and a first driving unit for driving the first conveying belt to horizontally move; the pressing device comprises a driving wheel, a driven wheel, a pressing belt, a second driving unit and a lifting pressing mechanism, wherein the driving wheel and the driven wheel extend along the conveying direction perpendicular to the first conveying belt, the driving wheel is connected with the second driving unit, the driving wheel is positioned below the driven wheel, the pressing belt winds the driving wheel and the driven wheel, a pressing area for a workpiece to pass through is formed between the outer side of the bottom surface of the pressing belt and the upper surface of the first conveying belt, the lifting pressing mechanism is positioned between the driving wheel and the driven wheel, and the lifting pressing mechanism comprises a pressing block and a third driving unit for driving the pressing block; the third driving unit drives the pressing block to move up and down to form pressing or releasing of the pressing belt, so that the pressing belt moves towards or away from the first conveying belt;

the UV curing oven comprises a support frame, a first box body arranged on the support frame and a UV lamp tube arranged in the first box body; the front side and the rear side of the first box body are respectively provided with an input port and an output port, the support frame is provided with a conveying mechanism for conveying workpieces, the conveying mechanism comprises a second conveying belt, a conveying wheel and a conveying driving unit, the second conveying belt penetrates through the input port to extend into the first box body and extend out of the output port, the second conveying belt is connected to the conveying wheel, the conveying driving unit drives the conveying wheel to rotate, the conveying driving unit is installed on the support frame, and the conveying wheel can be rotatably installed on the support frame; the UV lamp tube is arranged towards the second conveying belt; the UV lamp tube is connected with a moving mechanism for driving the UV lamp tube to move along the extending direction of the second conveying belt, and the moving mechanism is connected with the first box body;

two inboards all are provided with spacing sensor around this first box, and this spacing sensor is installed on the inside wall of first box, and this spacing sensor is located the top of second conveyer belt.

As a preferred scheme, the gluing device is positioned at the output side of the pressing device; drying device includes the second box and sets up in fan, the air-supply line of connecting in the fan of second box upper surface, the one end of air-supply line stretches into in the second box.

As a preferable scheme, the second box body is installed on the machine table, two symmetrical openings are formed in the side face of the second box body, one opening is connected to the output side of the first conveying belt, a guide pipe is fixedly installed at one end, located inside the second box body, of the air inlet pipe, branch pipes which are arranged equidistantly are fixedly installed on the outer surface of the guide pipe, and a wind collecting cover is fixedly installed at the bottom of each branch pipe.

As a preferred scheme, a collecting box is arranged in the machine table and located under the second box body, and a circulation port is arranged at the inner bottom of the second box body and communicated with the collecting box.

As a preferred scheme, the lifting press-fit mechanism further comprises a mounting frame, the front side and the rear side of the mounting frame extend out of the press belt and are connected to the machine table through a connecting frame, the third driving unit is mounted on the mounting frame, and the press-fit block is connected with the third driving unit through a telescopic rod.

As a preferred scheme, a bearing table is arranged in the first conveying belt, the upper end of the bearing table abuts against the inner upper side of the first conveying belt, and the bearing table is arranged opposite to the pressing device.

As a preferred scheme, the moving mechanism includes a guide rail, a slider and a moving driving unit, the guide rail is installed on the inner side of the first box and located on one side above the second conveyor belt, the guide rail extends along the extending direction of the second conveyor belt, the slider is adapted to the guide rail, the slider is connected to the moving driving unit, the moving driving unit is installed outside the first box, and the UV lamp tube is connected to the slider.

As a preferred scheme, the input port and the output port are both provided with a protective door, the protective door is connected with a lifting mechanism, and the lifting mechanism drives the protective door to move up and down.

As a preferred scheme, the lifting mechanism comprises a lifting seat, a lifting rod, a lifting driving unit and a connecting block, the lifting seat is mounted on the supporting frame, and the lifting driving unit is mounted on the lifting seat; one end of the lifting rod is connected to the lifting driving unit, and the other end of the lifting rod is connected to the connecting block; the protection door is connected to the connecting block.

As a preferred scheme, the material unreeling machine set comprises a double-station unreeling machine and a storage mechanism, wherein the double-station unreeling machine and the storage mechanism are sequentially arranged at one side of the coating mechanism from front to back.

Compared with the prior art, the invention has obvious advantages and beneficial effects, and concretely, the technical scheme shows that the pressing device is mainly combined with the pressing device through the first conveying belt, the pressing device comprises a driving wheel, a driven wheel, a pressing belt, a second driving unit and a lifting pressing mechanism, and a pressing block of the lifting pressing mechanism is enabled to move up and down to form a pressing or releasing pressing belt for the pressing belt, so that the pressing belt moves towards or away from the first conveying belt, and can be pressed to different degrees according to films with different thicknesses, thereby being applicable to processing of films with different thicknesses, avoiding the phenomenon of wrinkles in coating and dyeing, ensuring the coating and dyeing effect, and pressing the films through the pressing belt and the first conveying belt, increasing the pressing contact area, and ensuring the pressing quality and effect; secondly, the drying device is arranged, so that the coated and dyed film can be dried in time, the condition that the film is not dry and adhered after coating and dyeing is avoided, preliminary baking is realized, and the quality of the product is ensured;

the UV lamp tube is connected with a moving mechanism for driving the UV lamp tube to move along the extending direction of the second conveying belt, so that the UV lamp tube can be movably designed, the UV lamp tube can reciprocate, the baking temperature is more uniform, baking of an oven is facilitated, secondary baking is realized, the product quality and the yield are further ensured, and the position of the UV lamp tube can be adjusted according to the size and the position of a workpiece; still, through the setting of spacing sensor, can make it realize the spacing response that the UV fluorescent tube removed to guarantee that the UV fluorescent tube can not take place direct contact and cause the phenomenon of damage to the inside wall of box.

To more clearly illustrate the structural features and technical means of the present invention and the specific objects and functions achieved thereby, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a general flow diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a coating mechanism according to an embodiment of the present invention;

FIG. 3 is a front elevational view of the general construction of a UV curing oven in accordance with an embodiment of the present invention;

FIG. 4 is a side view of a portion of the structure of a UV curing oven according to an embodiment of the present invention.

The attached drawings indicate the following:

10. machine table 20 and conveying device

201. First conveyer belt 30, compression fittings

301. Driving wheel 302 and driven wheel

303. Press belt 304, pressing block

305. Third drive unit 306, mounting bracket

307. Telescopic rod 308 and auxiliary roller

40. Gluing device 50 and drying device

501. Second box 502, fan

503. Air inlet pipe 504, opening

505. Conduit 506 and branch pipe

507. Air collecting cover 508 and flow opening

60. Collecting box 70 and material unwinding unit

80. Finished product winding unit 90 and coating mechanism

100. UV curing oven

1. Support frame 2, first box

3. UV lamp tube 4 and conveying mechanism

41. Second conveyor belt 42, conveying wheel

43. Transport drive unit 5 and moving mechanism

51. Guide rail 52, slider

53. Moving drive unit 54 and conveyor belt

55. Transmission wheel 6 and limit sensor

7. Protective door 8 and lifting mechanism

81. Lifting seat 82 and lifting rod

83. Lifting drive unit 84 and connecting block

9. An alarm.

Detailed Description

Referring to fig. 1 to 4, specific structures of the embodiments of the present invention are shown.

A production line of a photocuring coating machine comprises a material unreeling unit 70, a coating mechanism 90, a UV curing oven 100 and a finished product reeling unit 80 in sequence according to a processing sequence; the material unreeling unit 70 comprises a double-station unreeling machine and a storage mechanism, wherein the double-station unreeling machine and the storage mechanism are sequentially arranged at one side of the coating mechanism 90 from front to back.

The coating mechanism 90 includes a machine table 10, and a conveying device 20, a pressing device 30, a gluing device 40, and a drying device 50 disposed on the machine table 10; the conveying device 20 includes a first conveyor belt 201 and a first driving unit for driving the first conveyor belt 201 to move horizontally; the pressing device 30 includes a driving wheel 301, a driven wheel 302, a pressing belt 303, a second driving unit and a lifting pressing mechanism, the driving wheel 301 and the driven wheel 302 are both arranged along a direction perpendicular to the conveying direction of the first conveying belt 201, the driving wheel 301 is connected to the second driving unit, the driving wheel 301 is located below the driven wheel 302, the pressing belt 303 is wound on the driving wheel 301 and the driven wheel 302, a pressing area for a workpiece to pass through is formed between the outer side of the bottom surface of the pressing belt 303 and the upper surface of the first conveying belt 201, the lifting pressing mechanism is located between the driving wheel 301 and the driven wheel 302, and the lifting pressing mechanism includes a pressing block 304 and a third driving unit 305 for driving the pressing block 304; the third driving unit 305 drives the pressing block 304 to displace up and down to form a pressing or releasing press belt 303 for the press belt 303, so that the press belt 303 displaces towards or away from the first conveying belt 201; the gluing device 40 is positioned at the output side of the pressing device 30; the drying device 50 includes a second box 501, a fan 502 disposed on the upper surface of the second box 501, and an air inlet pipe 503 connected to the fan 502, wherein one end of the air inlet pipe 503 extends into the second box 501.

Specifically, in this embodiment, the second box 501 is installed on the machine station 10, two symmetrical openings 504 are opened on a side surface of the second box 501, one opening 504 is connected to the output side of the first conveyor belt 201, a duct 505 is fixedly installed at one end of the air inlet pipe 503 located inside the second box 501, branch pipes 506 arranged at equal intervals are fixedly installed on the outer surface of the duct 505, and an air collecting hood 507 is fixedly installed at the bottom of each branch pipe 506; the machine station 10 is provided with a collection box 60 inside, the collection box 60 is located under the second box 501, the inner bottom of the second box 501 is provided with a circulation port 508, and the circulation port 508 is communicated with the collection box 60. So, can effectually introduce collecting box 60 with the coating that does not dry the drippage on the film in, guarantee second box 501's cleanness, make things convenient for staff's recovery.

The lifting pressing mechanism further comprises a mounting frame 306, the front side and the rear side of the mounting frame 306 extend out of the pressing belt 303 and are connected to the machine station 10 through a connecting frame, the third driving unit 305 is mounted on the mounting frame 306, and the pressing block 304 is connected to the third driving unit 305 through an expansion rod 307.

In this embodiment, the left and right sides of the driving wheel 301 are provided with auxiliary rollers 308 above the first conveyor belt 201; to better facilitate the film passing through the laminating device 30.

A bearing table is arranged in the first conveying belt 201, the upper end of the bearing table abuts against the inner upper side of the first conveying belt 201, and the bearing table is arranged right opposite to the pressing device 30. So, through the setting of plummer, can make it can play certain bearing effect, avoid appearing first conveyer belt 201 and lower the couch and make the sunken phenomenon that the fold appears of film.

The UV curing oven 100 comprises a support frame 1, a first box body 2 arranged on the support frame 1 and a UV lamp tube 3 arranged in the first box body 2; an input port and an output port are respectively arranged at the front side and the rear side of the first box body 2, a conveying mechanism 4 for conveying workpieces is arranged on the support frame 1, the conveying mechanism 4 comprises a second conveying belt 41, a conveying wheel 42 and a conveying driving unit 43, the second conveying belt 41 penetrates through the input port to extend into the first box body 2 and extend out of the output port, the second conveying belt 41 is connected to the conveying wheel 42, the conveying driving unit 43 drives the conveying wheel 42 to rotate, the conveying driving unit 43 is arranged on the support frame 1, and the conveying wheel 42 is rotatably arranged on the support frame 1; the UV lamp tubes 3 are arranged towards the second conveying belt 41, are positioned above the second conveying belt 41, and extend transversely left and right; the UV lamp tube 3 is connected with a moving mechanism 5 for driving the UV lamp tube 3 to move along the extending direction of the second conveyer belt 41, and the moving mechanism 5 is connected with the first box body 2; two inboards all are provided with spacing sensor 6 around this first box 2, and this spacing sensor 6 is installed on the inside wall of first box 2, and this spacing sensor 6 is located the top of second conveyer belt 41.

The moving mechanism 5 comprises a guide rail 51, a slide block 52 and a moving driving unit 53, the guide rail 51 is installed on the inner side of the first box body 2 and is positioned on one side above the second conveying belt 41, the guide rail 51 extends along the extending direction of the second conveying belt 41, the slide block 52 is adapted to the guide rail 51, the slide block 52 is connected to the moving driving unit 53, the moving driving unit 53 is installed outside the first box body 2, and the UV lamp tube 3 is connected to the slide block 52; the moving driving unit 53 is installed above the first casing 2 through a mounting bracket. And, the slider 52 is connected to the movement driving unit 53 through the conveyor belt 54 and the transmission wheel 55 in this order.

The protective door 7 is arranged on each of the input port and the output port, the protective door 7 is connected with a lifting mechanism 8, and the lifting mechanism 8 drives the protective door 7 to move up and down; the lifting mechanism 8 comprises a lifting seat 81, a lifting rod 82, a lifting driving unit 83 and a connecting block 84, the lifting seat 81 is installed on the support frame 1, and the lifting driving unit 83 is installed on the lifting seat 81; one end of the lifting rod 82 is connected to the lifting driving unit 83, and the other end is connected to the connecting block 84; the guard door 7 is connected to a connecting block 84. Thus, through the arrangement that the lifting mechanism 8 acts on the protective door 7, when a workpiece needs to be baked, the lifting mechanism 8 drives the protective door 7 of the input port to move upwards to be opened, so that the workpiece smoothly enters the first box body 2 from the input port through the second conveying belt 41, the protective door 7 of the output port is closed at the moment, when the workpiece completely enters the first box body 2, the lifting mechanism 8 drives the protective door 7 of the input port to move downwards to be closed, then baking is carried out, after baking is finished, the lifting mechanism 8 drives the protective door 7 of the output port to move upwards to be opened, and the workpiece is smoothly output from the output port through the second conveying belt 41; therefore, the phenomenon that the input port and the output port emit baking heat in the first box body 2 can be avoided, and meanwhile, the workpieces can be ensured to automatically and smoothly enter or be sent out.

Spacing sensor 6 is fixed in on the inside wall of first box 2 through spacing seat, spacing sensor 6 is just to UV fluorescent tube 3 setting to realize the spacing response of UV fluorescent tube 3 removal, thereby guarantee that UV fluorescent tube 3 can not take place direct contact to the inside wall of first box 2 and cause the phenomenon of damage. In the embodiment, an alarm 9 for alarming is arranged on the upper surface of the first box body 2; when the UV lamp tube 3 is about to approach the limit sensor 6, the alarm 9 sounds to prompt the staff.

In summary, the design of the present invention is characterized in that the first conveying belt is combined with the pressing device, the pressing device includes a driving wheel, a driven wheel, a pressing belt, a second driving unit and a lifting pressing mechanism, and the pressing block of the lifting pressing mechanism is moved up and down to form a pressing or releasing pressing belt for the pressing belt, so that the pressing belt is moved toward or away from the first conveying belt, and thus the pressing belt can be pressed to different degrees according to films with different thicknesses, and is suitable for processing films with different thicknesses, thereby avoiding the occurrence of wrinkles during coating and dyeing, ensuring the coating and dyeing effect, and pressing the films with the first conveying belt through the pressing belt, increasing the pressing contact area, and ensuring the pressing quality and effect; secondly, the drying device is arranged, so that the coated and dyed film can be dried in time, the condition that the film is not dry and adhered after coating and dyeing is avoided, preliminary baking is realized, and the quality of the product is ensured; the UV lamp tube is connected with a moving mechanism for driving the UV lamp tube to move along the extending direction of the second conveying belt, so that the UV lamp tube can be movably designed, the UV lamp tube can reciprocate, the baking temperature is more uniform, baking of an oven is facilitated, secondary baking is realized, the product quality and the yield are further ensured, and the position of the UV lamp tube can be adjusted according to the size and the position of a workpiece; still, through the setting of spacing sensor, can make it realize the spacing response that the UV fluorescent tube removed to guarantee that the UV fluorescent tube can not take place direct contact and cause the phenomenon of damage to the inside wall of box.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.