CN214419580U

CN214419580U - Sheet corona processor with adjustable

Info

Publication number: CN214419580U
Application number: CN202120352607.1U
Authority: CN
Inventors: 张艳
Original assignee: Changzhou Aofu Electronic Equipment Co ltd
Current assignee: Changzhou Aofu Electronic Equipment Co ltd
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-10-19
Anticipated expiration: 2031-02-07

Abstract

The utility model relates to a sheet corona processor with adjustable, including the treater body, be provided with the carriage on the treater body, rotate on the carriage and be connected with a plurality of conveying rollers, be provided with the corona roller directly over the carriage, the carriage sets up on the treater body along treater body high slip, is provided with the adjustment mechanism who is used for driving the carriage to slide on the treater body. The application has the effect that effective corona treatment can be carried out on sheets with different thicknesses.

Description

Sheet corona processor with adjustable

Technical Field

The application relates to the field of sheet processing equipment, in particular to an adjustable sheet corona treatment machine.

Background

Corona treatment is an electric shock treatment which gives higher adhesion to the surface of the substrate. Most plastic sheets have low surface tension and the inks and adhesives do not adhere strongly to the sheet, thus corona treatment is performed to increase surface roughness and surface area. During discharging, a large amount of ozone can be generated, molecules can be oxidized, groups with strong polarity such as carbonyl and peroxide are generated, ink is more easily attached to the surface of the sheet, and the corona treatment machine is equipment for performing corona treatment on the sheet.

The utility model with the publication number of CN211138194U discloses a corona machine with a tensioning mechanism, which comprises a frame, wherein a conveyor belt and a corona mechanism are arranged on the frame, and the conveyor belt comprises a transmission belt, and a driving roller and a driven roller which are positioned in the transmission belt; waist-shaped holes are respectively formed in two ends of the rack in the length direction of the fixed roller, tensioning mechanisms are arranged in the waist-shaped holes and comprise extension springs, and the extension springs are in a stretching state. Make corona machine's conveyer belt automatic tensioning to keep corona machine stable feeding's effect, reduced the inhomogeneous problem of corona that the material leads to because the material loading is unstable.

In view of the above-mentioned related art, the inventors considered that when the sheet is subjected to the corona treatment, the sheet is subjected to the corona treatment only at the same height, and there is a drawback that the effect of the corona treatment is not good.

SUMMERY OF THE UTILITY MODEL

In order to improve the defect that corona treatment machine is not good to sheet corona treatment effect, this application provides a sheet corona treatment machine with adjustable.

The application provides a sheet corona processor with adjustable adopts following technical scheme:

the utility model provides a sheet corona processor with adjustable, includes the processor body, be provided with the carriage on the processor body, it is connected with a plurality of conveying rollers to rotate on the carriage, be provided with the corona roller directly over the carriage, the carriage sets up on the processor body along processor body high slip, be provided with the adjustment mechanism who is used for driving the carriage to slide on the processor body.

Through adopting above-mentioned technical scheme, the user can be different according to sheet thickness, and the carriage slides, adjusts the distance between conveying roller and the corona roller, and then can be so that the distance between sheet upper surface and the corona roller keeps fixed, and then makes the effect of carrying out corona treatment to the sheet through the processor excellent, and through adjustment mechanism's setting, convenient to use person adjusts the distance between sheet and the corona roller.

Optionally, the adjusting mechanism includes cams rotatably arranged on the processor body, the number of the cams is two, the cams are symmetrically arranged on the processor body, sliding rods are arranged on the conveying frame corresponding to the cams, elastic pieces used for driving the sliding rods to slide to the positions corresponding to the cams are arranged on the processor body, the cams are coaxially connected with hand wheels, and driving parts used for driving the two sliding rods to slide simultaneously are arranged on the processor body.

Through adopting above-mentioned technical scheme, the user can be different according to the thickness of sheet, the manual carousel that rotates, and then overcome the elasticity of elastic component, make the pole that slides shift to keeping away from the cam center from being close to the cam center, and then adjust the distance between conveying roller and the corona roller, setting through driver part, make the cam that is located the carriage both ends rotate simultaneously, make the carriage steadily slide towards the corona roller, and then will make the distance between each part of sheet and the corona roller fixed, corona processor is stable to the treatment effect of sheet.

Optionally, the driving part comprises a worm wheel and a worm which are meshed with each other, a turntable is sleeved on the worm wheel, a support frame is arranged on the processor body along the height direction of the processor body, the worm is connected to the support frame in a rotating mode and connected with the support frame in a transmission mode through a transmission belt, and a power source used for driving one of the worms to rotate is arranged on the processor body.

Through adopting above-mentioned technical scheme, when sheet thickness is different, rotate through the drive power supply, drive the drive belt motion, drive two worms and rotate simultaneously, through worm wheel and worm intermeshing to drive two worm wheels and rotate in step, make the carousel that is located the carriage both ends rotate simultaneously, make the carriage be on a parallel with processor body top surface all the time, and then make corona treatment machine excellent to the corona treatment on sheet surface.

It is optional, it is provided with two locating pieces that are used for fixing a position the sheet to slide on the carriage both ends, the locating piece has been seted up the constant head tank on being close to the terminal surface at carriage center, the constant head tank is used for supplying the sheet to wear to shift, the locating piece slides along processor body width direction, it is connected with the screw rod to rotate on the locating piece, it establishes the backup pad on the screw rod to be provided with the cover on the processor body, be provided with the spacing ring in the backup pad, the one end that the locating piece was kept away from to the screw rod is provided with the annular, the annular is used for supplying the spacing ring gomphosis, be provided with on the processor body and be used for driving two screw rod synchronous pivoted drive disk assembly.

Through adopting above-mentioned technical scheme, before the sheet got into corona roller and conveying roller, at first according to the distance between two locating pieces of width adjustment of sheet, and then wear the constant head tank with the sheet, make the sheet of carrying between entering corona roller and the conveying roller, be difficult for taking place the skew in width direction, and then the corona machine is stable to the processing on sheet surface, through wearing the setting in hole that moves, make the locating piece slide along with the sliding of carriage, and then have the positioning action to the sheet all the time, through the setting of spacing ring and annular, make the screw rod can't take place to slide in treater body width direction, make the locating piece pass through the effect that the screw rod slided along the screw rod of screw thread stable. Through the setting of transmission part for the screw rod rotates in step, and the user need not to drive both sides screw rod respectively, and the user is easy and simple to handle.

Optionally, the drive disk assembly includes the carousel that links to each other with the screw rod, it is used for driving carousel pivoted actuating lever to slide to be provided with on the carousel, the spout has been seted up on the carousel, the spout is used for supplying the tip gomphosis of actuating lever, be provided with the protection casing that is used for protecting corona roller and corona roller below conveying roller on the treater body, one the one end that treater body top surface was kept away from to spout on the carousel is close to the protection casing setting, another the protection casing setting is kept away from to the one end that treater body top surface was kept away from to spout on the carousel.

Through adopting above-mentioned technical scheme, according to the width of sheet, the actuating lever slides along the spout on the carousel, and then drive the carousel and rotate, thereby drive the screw rod and rotate, because it is equipped with reverse spout to open relatively on the carousel that links to each other with two screw rods, drive the carousel and rotate in opposite direction, and then drive screw rod counter-rotation, thereby make two locating pieces simultaneously towards or keep away from the carriage center and slide, and then fix a position the sheet, make the sheet difficult skew in the width direction, the corona machine is excellent to sheet surface corona treatment effect.

Optionally, be provided with the guide post that is used for the direction actuating lever to slide on the processor body, the cover is equipped with the slider on the guide post, the actuating lever wears to locate on the slider, the guide post sets up along processor body direction of height.

Through adopting above-mentioned technical scheme, through the setting of guide post for the actuating lever slide more stable, and then drive the locating piece more stably and slide along processor body width direction.

Optionally, detachable fixedly connected with snap ring on the guide post, the snap ring is located the slider along the ascending both sides of processor body direction of height.

Through adopting above-mentioned technical scheme, the snap ring is located the both sides of actuating lever on the guide post under the normality for the actuating lever is difficult for sliding, and the distance between two locating pieces keeps fixed, and is stable to the ascending location of sheet width direction, when needing to adjust the distance between the locating piece, takes off the snap ring, and the actuating lever slides, after the distance between the adjustment locating piece, is fixed in the guide post with the snap ring again on, user easy and simple to handle.

Optionally, an infrared sensor is arranged in the protective cover and located below the corona roller, and an alarm is arranged on the processor body.

Through adopting above-mentioned technical scheme, after infrared sensor detected the sheet upper surface, to the alarm control power consumption signal of sending, remind the user to need not to continue to adjust the distance between carriage and the corona roller to effectively fix a position the distance between sheet and the corona roller, make the corona roller excellent to sheet surface treatment effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the conveying frame is arranged on the processor body in a sliding mode, so that the distance between the conveying frame and the corona roller can be manually adjusted according to different thicknesses of the sheets, the distance between the surface of the sheet and the corona roller is kept fixed, the processing effect of the corona roller on the surface of the sheet is excellent, a user can conveniently adjust the distance between the conveying frame and the corona roller through the arrangement of the adjusting mechanism, and the operation of the user is simple and convenient;

2. through locating piece, drive disk assembly and drive disk assembly's setting for when the sheet gets into the protection casing, make the sheet remain stable in the width direction, the sheet is difficult for taking place the skew in the width direction, and then when getting into between corona roller and the conveying roller, corona roller all carries out stable corona treatment to each part of sheet, makes the roughness on sheet surface even, makes the sheet surface change and adheres to coating etc..

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

FIG. 2 is a schematic cross-sectional view of an embodiment of the present application taken along the height of the processor body.

Fig. 3 is a schematic cross-sectional view of a positioning block in an embodiment of the present application.

Fig. 4 is an enlarged view of a portion D in fig. 3.

Fig. 5 is an enlarged view of a portion a in fig. 1.

Fig. 6 is a schematic structural view of the transmission member.

FIG. 7 is a schematic cross-sectional view of an adjustment mechanism according to an embodiment of the present application.

Fig. 8 is an enlarged view of a portion C in fig. 3.

Fig. 9 is an enlarged view of a portion E in fig. 6.

Fig. 10 is an enlarged view of a portion B in fig. 2.

Description of reference numerals: 1. a processor body; 11. a carriage; 111. a conveying roller; 12. a slide bar; 14. a corona roller; 15. a protective cover; 16. a support plate; 163. penetrating and moving the hole; 164. a limiting ring; 17. a support frame; 2. an adjustment mechanism; 21. a cam; 22. an elastic member; 23. a rotating wheel; 24. a hand wheel; 3. positioning blocks; 31. positioning a groove; 32. a screw; 321. a ring groove; 322. a knob; 33. a cavity; 4. a transmission member; 41. a turntable; 411. a chute; 42. a drive rod; 43. a guide post; 44. a snap ring; 46. a slider; 5. a drive member; 51. a worm gear; 52. a worm; 53. a transmission belt; 54. a power source; 55. a circular ring; 6. an alarm; 7. an infrared sensor.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The embodiment of the application discloses sheet corona processor with adjustable. Referring to fig. 1 and 2, the adjustable sheet corona processor comprises a processor body 1, wherein a conveying frame 11 is arranged on the processor body 1 in a sliding mode, and a supporting plate 16 is connected to the processor body 1 in a welding mode. A plurality of conveying rollers 111 are rotatably connected in the conveying frame 11, a corona roller 14 is arranged above the conveying rollers 111 in the middle of the conveying frame 11, and a protective cover 15 used for protecting the corona roller 14 and the conveying rollers 111 below the corona roller 14 is arranged on the upper cover of the processor body 1. The processor body 1 is provided with an adjusting mechanism 2 for driving the conveying frame 11 to slide.

Discharge through corona roller 14 and carry out the ionization to the air that is located between corona roller 14 and conveying roller 111, and then generate high active oxygen molecule, oxidize the sheet surface, make the sheet surface coarse, it attaches to material such as coating more easily, slide the setting on processor body 1 along processor body 1 direction of height through carriage 11, thereby can be different according to the thickness of sheet, adjust the distance between carriage 11 and corona roller 14, make the distance between sheet and the corona roller 14 keep fixed, make the processor to the corona treatment on sheet surface comparatively even.

Referring to fig. 3 and 4, two positioning blocks 3 are slidably disposed on the disposer body 1 along the width direction of the disposer body 1, and the two positioning blocks 3 are disposed symmetrically with respect to the center of the conveyor 11. One end of the positioning block 3 close to the center of the conveying frame 11 is provided with a positioning groove 31, the positioning groove 31 is used for the sheet to pass through, and the distance between the two positioning grooves 31 is equal to the width of the sheet. A screw 32 is connected to one end of the positioning block 3 far away from the center of the conveying frame 11 through a thread, and a cavity 33 for the screw 32 to horizontally penetrate through and be connected with the thread is formed in the positioning block 3.

Referring to fig. 5 and 6, a penetrating hole 163 is formed in the support plate 16, an axial direction of the penetrating hole 163 is arranged along a height direction of the processor body 1, the penetrating hole 163 is used for allowing the screw rod 32 to slide, the support plate 16 is welded and connected with a limit ring 164, the limit ring 164 is located outside the penetrating hole 163, a ring groove 321 is formed in one end of the screw rod 32, which is far away from the positioning block 3, the sliding groove 411 is used for allowing the limit ring 164 to be embedded, and a knob 322 is integrally formed at one end of the screw rod 32, which is located outside the processor body 1. And then make when adjusting carriage 11 height, locating piece 3 and screw rod 32 etc. all follow carriage 11 and displace together, and then can fix a position the sheet all the time, through the gomphosis of spacing ring 164 with annular 321 for screw rod 32 is difficult for taking place to slide in the 1 width direction of processor body, makes the effect that locating piece 3 slided along screw rod 32 stable. The processor body 1 is provided with a transmission member 4 for driving the screw 32 to rotate synchronously.

Wear to locate on locating piece 3 through screw rod 32, when carrying out corona treatment to the sheet of different width, adjust the distance between the locating piece 3 through rotating screw rod 32, break through constant head tank 31 with the sheet and carry towards corona roller 14, make the sheet difficult emergence skew in the width direction, make the sheet evenly accept the electricity fish to handle, setting through drive disk assembly 4, but synchronous drive screw rod 32, make the sheet be located the part at the comparatively center of conveying roller 111 all the time, make the processing of corona machine to the sheet more even, and user easy and simple to handle.

Referring to fig. 7 and 8, the transmission part 4 includes a rotary plate 41, the rotary plate 41 is welded to the screw 32, and a driving rod 42 is slidably disposed on the processor body 1. The driving rod 42 slides along the height direction of the processor body 1, the processor body 1 is welded and connected with a guide post 43, a sliding block 46 is sleeved on the guide post 43, the driving rod 42 penetrates through the sliding block 46, and the sliding block 46 slides along the guide post 43. The guide post 43 is connected with a snap ring 44 in an interference manner, the snap ring 44 is provided with an opening at one end, the snap ring 44 is made of elastic materials, and the snap ring 44 is positioned at two ends of the sliding block 46. The turntables 41 are provided with sliding grooves 411, one end of the sliding groove 411 on one turntable 41, which is far away from the top surface of the processor body 1, is close to the protective cover 15, one end of the sliding groove 411 on the other turntable 41, which is far away from the top surface of the processor body 1, is far away from the protective cover 15, and one end of the driving rod 42, which is far away from the guide column 43, is embedded with the sliding groove 411.

When handling different sheets, the manual actuating lever 42 that slides of user, make actuating lever 42 slide along guide post 43, through actuating lever 42 and spout 411 gomphosis, drive carousel 41 antiport, thereby drive two screw rods 32 antiport with carousel 41 threaded connection, make locating piece 3 simultaneously towards or keep away from carriage 11 center and slide, adjust to the back the same with the sheet width, make the sheet pass constant head tank 31 and carry towards protection casing 15, make the sheet can stably accept corona treatment, the corona machine is excellent to corona sheet effect. Through the setting of snap ring 44 for under the normality, the distance between two locating pieces 3 is fixed, and the width effect of location sheet is stable. When the driving rod 42 needs to be slid, the driving rod 42 can be slid only by taking down the snap ring 44, after the adjustment is finished, the snap ring 44 can be fixed on the guide post 43 again, the operation of a user is simple and convenient, and the effect of positioning the width of the sheet material through the positioning block 3 is stable.

Referring to fig. 9 and 10, the adjusting mechanism 2 includes two cams 21 rotatably connected to both ends of the width direction of the processor body 1, two sliding rods 12 are slidably arranged on the conveying frame 11 corresponding to the cams 21, the sliding rods 12 slide along the height direction of the processor, a rotating wheel 23 is rotatably connected to the lower side of the supporting frame 17, the cams 21 are always abutted against the rotating wheel 23, and the rotating wheel 23 is abutted against the cams 21, so that in the process of driving the conveying frame 11 to slide, the abrasion caused by the direct contact between the cams 21 and the conveying frame 11 is reduced, and the service life of the cams 21 is prolonged.

Referring to fig. 10, the rotational center line of the cam 21 is parallel to the central axis of the conveying roller 111. An elastic member 22 for driving the sliding rod 12 to slide and contact with the cam 21 is welded and connected to the support plate 16, and the elastic member 22 may be a spring or an elastic sheet, but any elastic member capable of driving the sliding rod 12 to contact with the cam 21 is sufficient, and a spring is used in this embodiment. One end of the spring is connected with the support plate 16 in a welding way, and the other end of the spring is connected with the sliding rod 12 in a gluing way. The cam 21 is coaxially welded and connected with a hand wheel 24, and the processor body 1 is connected with a driving part 5 for simultaneously driving the two sliding rods 12 to slide.

When the thickness of the sheet is different, a user manually rotates the hand wheel 24 to drive the conveying frame 11 to slide along the height direction of the processor body 1, so that the distance between the sheet and the corona roller 14 is kept fixed, and the corona roller 14 can perform uniform corona treatment on the sheet. Through the setting of drive part 5 for two carousel 41 rotations of drive simultaneously, thereby realize carriage 11 and keep the horizontality throughout the process of sliding, make then each part of sheet all be located same height and carry out corona treatment, make sheet surface corona treatment's effect excellent.

Referring to fig. 2 and 9, the driving part 5 includes a worm wheel 51 and a worm 52 which are engaged with each other, the worm wheel 51 is sleeved outside the turntable 41, the support frame 17 is welded and connected to the processor body 1, the worm 52 is rotatably connected to the support frame 17, the worm 52 is arranged in a direction perpendicular to the axial direction of the conveying roller 111, one end of each of the two worms 52 away from the worm wheel 51 is sleeved with a driving belt 53, the worm 52 is sleeved with a circular ring 55 for fixing the driving belt 53, the driving belt 53 is connected with a power source 54, in this embodiment, the power source 54 is a motor, which is not shown in the drawings. Welding is linked to each other on the processor body 1 and is linked to each other with alarm 6, and welding is linked to each other has infrared sensor 7 on the protection casing 15 inner wall, and the distance between infrared sensor 7 and corona roller 14 is 1.5mm-2.5mm, and in this embodiment, 2.0mm is selected for use to the distance between infrared sensor 7 and corona roller 14, and after infrared sensor 7 detected the sheet, to alarm 6 transmission control power consumption signal, alarm 6 sent the police dispatch newspaper and reminded the user and has adjusted suitable position.

Rotate through motor drive belt 53, and then drive two worm 52 synchronous rotations to drive worm wheel 51 synchronous rotation, drive carriage 11 and steadily slide along processor body 1 direction of height, make the distance between each part of sheet and corona roller 14 fixed, it is stable and excellent to the corona treatment effect of sheet.

Referring to fig. 2, the distance between the corona roller 14 and the infrared sensor 7 is the distance between the surface of the sheet and the corona roller 14, and if the distance between the corona roller 14 and the surface of the sheet is too large, the corona effect on the surface of the sheet is not good; the distance between the corona roller 14 and the surface of the sheet is too small, so that excessive ionization is easy to occur on the surface of the sheet or electric spark breakdown is directly generated on the surface of the sheet, the roughness of the surface of the sheet is uneven, and the appearance of a product obtained after subsequent coating is poor. When the distance between the corona roller 14 and the surface of the sheet is 1.5mm-2.5mm, on one hand, corona can be uniformly carried out on the surface of the sheet, and on the other hand, ionization is not easy to directly occur on the surface of the sheet, so that the good appearance of a subsequent product is ensured.

The implementation principle of the adjustable sheet corona treatment machine in the embodiment of the application is as follows: by the arrangement of the adjusting mechanism 2, when sheets with different thicknesses are processed, the distance between the conveying frame 11 and the corona roller 14 can be adjusted, so that the surface of the sheet is always kept horizontal and keeps a fixed distance from the corona roller 14; through the setting of locating piece 3 for the sheet is before inputing into between corona roller 14 and the conveyer pipe, at first fixes a position on the sheet width through constant head tank 31, makes the sheet difficult emergence skew in the 1 width direction of processor body, makes the corona processor comparatively excellent to the treatment effect of each part of sheet.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a sheet corona processor with adjustable, includes treater body (1), be provided with carriage (11) on treater body (1), it is connected with a plurality of conveying rollers (111) to rotate on carriage (11), be provided with corona roller (14), its characterized in that directly over carriage (11): the conveying frame (11) is arranged on the processor body (1) in a highly sliding mode along the processor body (1), and the processor body (1) is provided with an adjusting mechanism (2) used for driving the conveying frame (11) to slide.

2. An adjustable sheet corona processor according to claim 1, wherein: adjustment mechanism (2) are including rotating cam (21) that sets up on processor body (1), the quantity of cam (21) is two and the symmetry sets up on processor body (1), it is provided with slide bar (12) to correspond cam (21) on carriage (11), be provided with on processor body (1) and be used for driving slide bar (12) cunning to elastic component (22) with cam (21) looks butt, cam (21) coaxial linking mutually has hand wheel (24), be provided with on processor body (1) and be used for driving drive unit (5) that two slide bar (12) slided simultaneously.

3. An adjustable sheet corona processor according to claim 2, wherein: drive unit (5) are including intermeshing's worm wheel (51) and worm (52), the cover is equipped with carousel (41) on worm wheel (51), be equipped with support frame (17) along processor body (1) direction of height on processor body (1), worm (52) rotate to be connected on support frame (17), two worm (52) link to each other through drive belt (53) transmission, be provided with on processor body (1) and be used for driving power supply (54) that one of them worm (52) are rotatory.

4. An adjustable sheet corona processor according to claim 1, wherein: two positioning blocks (3) for positioning the sheet are arranged on the two ends of the conveying frame (11) in a sliding way, a positioning groove (31) is arranged on the end surface of the positioning block (3) close to the center of the conveying frame (11), the positioning groove (31) is used for the sheet to pass through, the positioning block (3) slides along the width direction of the processor body (1), the positioning block (3) is rotatably connected with a screw rod (32), the processor body (1) is provided with a supporting plate (16) sleeved on the screw rod (32), a limit ring (164) is arranged on the support plate (16), a ring groove (321) is arranged at one end of the screw rod (32) far away from the positioning block (3), the ring groove (321) is used for embedding the limiting ring (164), and the processor body (1) is provided with a transmission component (4) for driving the two screws (32) to synchronously rotate.

5. An adjustable sheet corona processor according to claim 4, wherein: drive disk (4) include carousel (41) that link to each other with screw rod (32), it is provided with on carousel (41) and is used for driving carousel (41) pivoted actuating lever (42), spout (411) have been seted up on carousel (41), spout (411) are used for supplying the tip gomphosis of actuating lever (42), be provided with on treater body (1) and be used for protecting protection casing (15), one of corona roller (14) below conveying roller (111) spout (411) on carousel (41) keep away from the one end of treater body (1) top surface and be close to protection casing (15) setting, another the one end that treater body (1) top surface was kept away from in spout (411) on carousel (41) keeps away from protection casing (15) setting.

6. An adjustable sheet corona processor according to claim 5, wherein: be provided with guide post (43) that are used for direction actuating lever (42) to slide on processor body (1), the cover is equipped with slider (46) on guide post (43), on slider (46) was worn to locate in actuating lever (42), guide post (43) set up along processor body (1) direction of height.

7. An adjustable sheet corona processor according to claim 6, wherein: detachable fixedly connected with snap ring (44) on guide post (43), snap ring (44) are located slider (46) along the ascending both sides of processor body (1) direction of height.

8. An adjustable sheet corona processor according to claim 5, wherein: be provided with infrared sensor (7) in protection casing (15), infrared sensor (7) are located corona roller (14) below, be provided with alarm (6) on processor body (1).