CN211467838U

CN211467838U - Humidity adjusting device for offset press

Info

Publication number: CN211467838U
Application number: CN201922082481.6U
Authority: CN
Inventors: 章圣放
Original assignee: Wenzhou Jinjia Color Printing Co ltd
Current assignee: Wenzhou Jinjia Color Printing Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-09-11
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a humidity adjusting device for offset press, which comprises a conveying device and a humidity adjuster, wherein the conveying device is arranged in a ladder-shaped structure, the conveying device comprises a humidifying inclined plane, a dehumidifying plane and a humidity controlling inclined plane in sequence along the conveying direction, the humidity adjuster comprises a humidity controlling shell and a sensing device, a humidifier, a dehumidifier and a humidity controller are arranged in the humidity controlling shell, the humidifier is arranged above the relative position of the humidifying inclined plane, the dehumidifier is arranged at the relative position of the dehumidifying plane, the humidity controller is arranged below the relative position of the humidity controlling inclined plane, a centralized processor is coupled between the sensing device and the humidity controller as well as between the dehumidifier and the humidifier, and the humidity controlling shell and a conveying frame form a conveying channel for conveying paper, the humidity adjusting device has the function of automatically detecting the relative humidity of the environment temperature, and can automatically humidify or dehumidify paper.

Description

Humidity adjusting device for offset press

Technical Field

The utility model relates to a humidity control device, more specifically say, it relates to a humidity control device for offset press.

Background

An offset printing press is a kind of offset printing press, in which printing images are first printed on a blanket cylinder from a printing plate and then transferred to paper by the blanket cylinder. Offset presses can be divided into sheet-fed offset presses and web-fed offset presses according to different paper feeding modes; the printing color number completed by one-time paper feeding can be divided into single-color, double-color, four-color and multi-color printing machines; the printing method can be divided into a small offset press, a six-opening, four-opening, two-opening and full-sheet printing press according to the maximum paper breadth to be printed, and a double-sided offset press which can simultaneously complete two-side printing by one-time paper feeding is also arranged.

In the printing production process, the temperature, humidity and ink property of a workshop all cause certain influence on the printing quality of paper, if the temperature is too high and the relative humidity is too low, the paper is easy to become brittle, static electricity is easy to generate in printing, the static electricity can cause overprint inaccuracy, on the other hand, the static electricity can also cause printing equipment failure, and even a circuit fire disaster can be caused by discharging; if the temperature is too low and the relative humidity is too high, the ink is not easy to dry when printed on paper, the plate pasting phenomenon is easy to generate, the paper can change along with the change of moisture, the quantification, the tensile strength, the flexibility, the folding resistance and the like of the paper can be changed, the size of the paper can also stretch, and even the paper can curl, stick up edges, wrinkle, lotus leaf edges and the like, the phenomenon that the paper wrinkles is generated not only easily enables the printer not to normally operate, but also delays the construction period, and simultaneously, the printing quality is easy to influence, and even waste products are caused.

SUMMERY OF THE UTILITY MODEL

An it is not enough to prior art existence, the utility model aims to provide a humidity control device for offset press, this humidity control device have the function of automated inspection ambient temperature's relative humidity to can carry out humidification or dehumidification to the paper automatically.

In order to achieve the above purpose, the utility model provides a following technical scheme: a humidity control device for an offset press comprises a conveying device for conveying paper and a humidity controller capable of dehumidifying or humidifying the paper in the conveying device, wherein the conveying device is arranged in a trapezoidal structure, and the conveying device sequentially comprises a humidifying inclined plane in an inclined edge structure, a dehumidifying plane in a plane structure and a humidity control inclined plane in an inclined edge structure along the conveying direction;

humidity controller including around the accuse wet shell in the conveyor outside and be used for detecting the induction system of relative humidity in the workshop, be provided with in the accuse wet shell and be used for carrying out the humidifier of fountain solution humidification operation to a side of paper on the humidification inclined plane, and be used for going up the dehumidifier that the paper dehumidified the operation on the dehumidification plane and be used for carrying out humidification or the accuse wet ware of dehumidification operation to another side of paper on the accuse wet inclined plane, the humidifier sets up in the top of humidification inclined plane relative position, the dehumidifier sets up in dehumidification plane relative position department, the accuse wet ware sets up in the below of accuse wet inclined plane relative position, the central processing unit is coupled between induction system and accuse wet ware and dehumidifier and humidifier, the accuse wet shell surrounds with the carriage and forms the transfer passage who supplies the paper to carry, conveyor sends the paper into again from the entrance point of humidification inclined plane transfer passage's exit end behind the dehumidification plane again from the humidification plane from the humidification inclined plane transfer passage's entrance point And (7) sending out.

The utility model discloses further set up to: the conveying device comprises a conveying frame which is arranged on the frame and is in a trapezoidal structure and a conveying belt used for conveying paper along the conveying frame, the three surfaces of the conveying frame arranged on the frame are respectively a humidifying inclined surface, a dehumidifying plane and a humidity control inclined surface, the conveying device comprises a conveying belt, a conveying channel, a humidifying plane, a dehumidifying plane, a first conveying belt, a second conveying belt, a third conveying belt, a rotating roller and a rotating motor, wherein the conveying belt is closely provided with air holes, the conveying belt comprises the first conveying belt located on the humidifying plane, the second conveying belt located on the dehumidifying plane, the third conveying belt located on the humidity control plane, the rotating roller and the rotating motor are used for driving the first conveying belt, the second conveying belt and the third conveying belt to rotate, and the conveying device conveys paper to the first conveying belt firstly, then conveys the paper to the second conveying belt through the first conveying belt, then conveys the paper to the third conveying belt through the second conveying belt, and finally conveys.

The utility model discloses further set up to: the dehumidifier comprises a heat drier arranged on the upper side and the lower side of the dehumidification plane and used for carrying out heat drying on the two sides of the paper and/or an air drier arranged on the upper side of the dehumidification plane and used for carrying out air drying on the front side of the paper.

The utility model discloses further set up to: the wet control device comprises a wet control shell, a control induction switch and a dehumidification plane, wherein the wet control shell is arranged on the wet control shell, the control induction switch is arranged between the alcohol sprayer and the dehumidification plane, and the control induction switch is used for controlling the on-off of the control induction switch.

The utility model discloses further set up to: the wet ware of accuse is including setting up the first air intake in humidification inclined plane below, and set up the second air intake in dehumidification plane below, and set up first air outlet and the second air outlet in the wet inclined plane of accuse below, be provided with in the first air outlet and be used for carrying out the heating air-blast device of dehumidification operation to the last paper of the wet inclined plane of accuse, be provided with in the second air outlet and be used for carrying out the air-blast device that sprays of humidification operation to the last paper of the wet inclined plane of accuse, heating air-blast device or spray air-blast device operation in-process can form the adsorption to the paper on humidification inclined plane and the dehumidification plane.

The utility model discloses further set up to: the humidifying shell is internally provided with a humidifying inductive switch for controlling the opening and closing of the humidifier, a dehumidifying inductive switch for controlling the opening and closing of the dehumidifier and a humidity controlling inductive switch for controlling the opening and closing of the humidity controller, the humidifying inductive switch is arranged between the humidifier and the inlet end of the conveying passage, the dehumidifying inductive switch is arranged between the dehumidifier and the humidifying inclined plane, the humidity controlling inductive switch is arranged between the humidity controller and the dehumidifying plane, the spraying and blowing device and the humidifier are started together when the humidifying inductive switch triggers the humidity controlling inductive switch firstly and then the heating and blowing device and the dehumidifier are started together when the humidity controlling inductive switch triggers firstly and then the humidity controlling inductive switch.

The utility model discloses further set up to: the sensing device comprises a hygrometer and a thermometer which are arranged on the outer side wall of the humidity control shell and used for displaying the temperature and the humidity detected by the sensing device.

To sum up, the utility model discloses following beneficial effect has: the humidity regulator is matched with the conveying device for use, can humidify and dehumidify paper positioned in the conveying device, aims at the paper to be printed, and does not perform humidity regulation operation on the paper which is not printed or does not need to be printed, so that endless waste is reduced, energy is saved, the expenditure of a company is saved, and the humidity regulation and control in a small range is more accurate compared with the humidity regulation and control in a large range; compared with plane humidification, the inclined plane humidification has more advantages, not only is the coverage area wide, but also the space is saved, and the paper can be completely covered under one-time spraying only by selecting a proper angle; the plane dehumidification can avoid the accident situation and has stable dehumidification effect; this design benefit on wet inclined plane of accuse need not pass through paper reversal device, exchanges the positive and negative, just can carry out the humidification or dehumidify to the another side, and this design reduces work flow, practices thrift the work ageing to play the effect of accelerating the printing.

Drawings

FIG. 1 is a sectional view of a humidity conditioner in a plan view;

fig. 2 is a schematic plan view of the conveying device.

Reference numerals: 1. a conveying device; 11. a carriage; 12. humidifying the inclined plane; 13. removing moisture from the plane; 14. a moisture control inclined plane; 2. a conveyor belt; 21. a first conveyor belt; 22. a second conveyor belt; 23. a third conveyor belt; 24. a rotating roller; 3. a humidity regulator; 31. a humidity control shell; 311. an alcohol sprayer; 312. controlling the inductive switch; 32. an induction device; 33. a humidifier; 331. a humidifying induction switch; 34. a dehumidifier; 341. a dehumidification induction switch; 35. a humidity controller; 351. a first air inlet; 352. a second air inlet; 353. a first air outlet; 3531. a heating blower device; 354. a second air outlet; 3541. a spray blower device; 355. a humidity control inductive switch; 36. a delivery channel.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 2, in order to achieve the above object, the present invention provides the following technical solutions: a humidity control device for offset press, including the conveyer 1 that the paper is conveyed and passed and can dehumidify or the humidity controller 3 that humidifies the paper in the conveyer 1, the humidity controller 3 cooperates with conveyer 1 to use, can moisten or dehumidify the paper located in conveyer 1 area, for controlling the relative humidity of a whole workshop, the area to change humidity is smaller, and the target to be printed is the paper to be printed, do not carry on the humidity control operation to the paper not printed and not used to print, thus reduce the endless waste, save the energy, save the company's expenses, and regulate and control humidity in the small scale more accurately for regulating and controlling humidity in the large scale, will not appear the situation that the edge area and central area appear the humidity difference;

the conveying device 1 is arranged in a trapezoidal structure, and the conveying device 1 sequentially comprises a humidifying inclined plane 12 in an inclined-edge structure, a dehumidifying plane 13 in a plane structure and a humidity control inclined plane 14 in an inclined-edge structure along the conveying direction; the humidity regulator 3 comprises a humidity control shell 31 surrounding the outer side of the conveying device 1 and a sensing device 32 for detecting the relative humidity in the workshop, a humidifier 33 for humidifying the dampening solution on one side surface of the paper on the humidifying inclined plane 12, a dehumidifier 34 for dehumidifying the paper on the dehumidifying plane 13 and a humidity controller 35 for humidifying or dehumidifying the other side surface of the paper on the humidity control inclined plane 14 are arranged in the humidity control shell 31, the humidifier 33 is arranged above the relative position of the humidifying inclined plane 12, the dehumidifier 34 is arranged at the relative position of the dehumidifying plane 13, the humidity controller 35 is arranged below the relative position of the humidity control inclined plane 14, the conveying device 1 is divided into three different humidifying or dehumidifying areas so as to achieve better humidifying effect or dehumidifying effect, the design of the humidifying inclined plane 12 is that when the paper on the humidifying inclined plane 12 is humidified, the method is characterized in that the humidifier 33 sprays foggy fountain solution, the fountain solution can be sprayed downwards and forwards under the action of gravity and assistance force during spraying, so that paper on the humidifying inclined plane 12 is humidified, compared with plane humidification, the inclined plane humidification has a wide coverage range during one-time spraying, the spraying space required by the inclined plane humidification is smaller than that of the plane humidification during the humidification of the surface of the paper with the same area, when the surface of the paper with a larger area is humidified, the plane humidification requires a high enough height to cover the sprayed fountain solution on the whole paper, the equipment height is easy to increase endlessly, the inconvenience of installation and maintenance is caused during the early installation and later maintenance, and besides, the foggy fountain solution cannot directly pass through a far distance of the assistance spraying of the sprayer like liquid spraying in the spraying process (only the sprayer can play an assisting role and cannot play a decisive role), therefore, the paper is difficult to completely cover at one time in the plane spraying process, so that a plurality of spraying openings can be arranged only along the length direction of the paper, but spraying overlapping areas are easy to occur in the spraying process of the plurality of spraying openings, so that the humidity value in the overlapping areas is larger than that in the non-overlapping areas, the humidity on the paper is uneven, the humidity of the overlapping areas is too high in the later printing process, the ink cannot be quickly dried, and the regional plate pasting occurs; the design of the dehumidification plane 13 is mainly drying, and the dehumidification effect is fastest and most effective by blowing hot air, however, if the front surface of the paper is dried in the inclined plane, a downward acting force is easily applied to the paper, and in the inclined plane for upward transportation, the situations of increasing the conveying pressure, slowing down the conveying speed and the like are caused, which results in unnecessary resource waste, seriously causes the deviation of the paper, and even causes the situation of blowing off the paper, and hinders the printing process; in the inclined plane of downward transportation, can lead to the paper to remove too fast, lead to and the front and back paper distance change, can lead to the printing error at intermittent type printing process, the condition such as printing is omitted, so the plane is dehumidified and can be avoided these circumstances, stable dehumidification effect has, the design of accuse wet inclined plane 14 can carry out the back treatment through accuse wet ware 35 to the paper that will follow accuse wet inclined plane 14 and carry out downwards, this design benefit of accuse wet inclined plane 14 need not pass through paper reversing device, exchange the positive and negative, just can carry out humidification or dehumidification to the another side, this design reduces workflow, practice thrift the working age, thereby play the effect of accelerating the printing.

A centralized processor is coupled between the sensing device 32 and the humidity controller 35 and between the dehumidifier 34 and the humidifier 33, and the centralized processor is arranged to set a humidity value most suitable for the current paper in the centralized processor, and compare the humidity value with a relative humidity value sensed by the sensing device 32, so as to control the on and off of the dehumidifier 34 or the humidifier 33 or the humidity controller 35, thereby being more automatic, saving labor cost and reducing product cost, the humidity control shell 31 and the conveying frame 11 are surrounded to form a conveying channel 36 for paper conveying, and the conveying device 1 conveys the paper from the inlet end of the conveying channel 36 at the humidifying inclined plane 12 and then passes through the dehumidifying plane 13 and then sends the paper out from the outlet end of the conveying channel 36.

The conveying device 1 comprises a conveying frame 11 which is arranged on a rack and is in a trapezoidal structure and a conveying belt 2 which is used for conveying paper along the conveying frame 11, three surfaces of the conveying frame 11 which is arranged on the rack are a humidifying inclined surface 12, a dehumidifying plane 13 and a humidity control inclined surface 14 respectively, and air holes are densely formed in the conveying belt 2 and can facilitate the subsequent humidity controller 35 to carry out dehumidifying or humidifying operation on the back surface of the paper; the conveying belt 2 comprises a first conveying belt 21 positioned on the humidifying inclined plane 12, a second conveying belt 22 positioned on the dehumidifying plane 13, a third conveying belt 23 positioned on the humidity control inclined plane 14, a rotating roller 24 for driving the first conveying belt 21, the second conveying belt 22 and the third conveying belt 23 to rotate and a rotating motor for driving the rotating roller 24 to rotate, the conveying device 1 is firstly conveyed onto the first conveying belt 21, then conveyed onto the second conveying belt 22 through the first conveying belt 21, then conveyed onto the third conveying belt 23 through the second conveying belt 22 and then conveyed out from the outlet end of the conveying channel 36 through the third conveying belt in the paper conveying process, the conveying belt 2 is designed to facilitate the paper conveying device 1 to convey paper onto the conveying frame 11, and the sectional design can be used for carrying out independent maintenance on each area in later maintenance, compared with the integrally designed conveying belt 2, more flexibility.

Dehumidifier 34 is including setting up the heat-drying ware that carries out the heat stoving in the upper and lower both sides of dehumidification plane 13 and/or setting up the air dryer that openly carries out the wind stoving to the paper in the upside of dehumidification plane 13, dehumidifier 34 dehumidification operating method roughly divide into two kinds of operating method of heat stoving and wind stoving, the advantage of heat stoving for the wind stoving, it is stable to dehumidify, the noise is lower, can dehumidify the operation simultaneously to the both sides of paper, can play comparatively stable dehumidification effect through the control temperature, the wind stoving is for the advantage of heat stoving, the dehumidification effect is fast, can direct action reduce unnecessary energy consumption on the paper surface, comparatively energy saving, reduce product cost.

An alcohol sprayer 311 capable of spraying alcohol on two sides of paper is arranged at the outlet end of the conveying channel 36, which is positioned at the moisture control inclined plane 14, of the moisture control shell 31, a control induction switch 312 for controlling the alcohol sprayer 311 to be automatically opened and closed is arranged in the moisture control shell 31, the control induction switch 312 is arranged between the alcohol sprayer 311 and the moisture removing plane 13, an opening and closing switch for controlling the opening and closing of the control induction switch 312 is arranged on the moisture control shell 31, when the control induction switch 312 senses the paper, the alcohol sprayer 311 is driven to be started, so that the alcohol sprayer 311 sprays on the front side and the back side of the paper, when the control induction switch 312 senses the paper, the alcohol sprayer 311 is closed, in addition, the opening and closing switch can control whether the induction switch 312 is opened or not, therefore, the opening and closing are not needed, no-end waste is avoided, and the surface tension of a fountain, thereby let the water film expand at the paper more easily, alcohol can also be through the circulation of fountain solution, takes away the heat on the paper, in addition can be in printing process with alcohol conduction on the paper to between rubber roll and the rubber roll, take away the heat that the friction produced between roller and the roller, reduce as far as there is the deformation that the heat arouses in the machine operation process, guarantee the printing precision.

The humidity controller 35 includes a first air inlet 351 disposed below the humidifying slope 12, a second air inlet 352 disposed below the dehumidifying plane 13, and a first air outlet 353 and a second air outlet 354 disposed below the humidity controlling slope 14, wherein a heating blower 3531 for dehumidifying the paper on the humidity controlling slope 14 is disposed in the first air outlet 353, a spraying blower 3541 for humidifying the paper on the humidity controlling slope 14 is disposed in the second air outlet 354, and the heating blower 3531 or the spraying blower 3541 can form an adsorption effect on the paper on the humidifying slope 12 and the dehumidifying plane 13 during operation. This design of wet ware 35 of accuse, can dehumidify or the humidification operation the paper back, can play effectual adsorption to the paper on humidification inclined plane 12 and the dehumidification plane 13 when this wet ware 35 starts, prevent that the paper on the humidification inclined plane 12 from gliding, the skew phenomenon from appearing, prevent that the paper on the dehumidification plane 13 from appearing the skew phenomenon in the wind stoving operation in-process, the paper interval differs around avoiding causing, influence subsequent printing operation, in addition can carry out the blast air operation to the paper on the wet inclined plane 14 of accuse: 1. the drying operation on the back of the paper can be accelerated in the hot air drying process, and even if the paper is blown away from the conveyor belt by the heating and blowing device 3531 arranged on the downward inclined surface, the paper can also move obliquely downward under the action of the gravity of the paper, so that the situation that the paper is not standing is avoided; 2. in the humidification process, the humidity of the back of the paper and the humidity of the conveying belt are increased, so that the paper is attached to the conveying belt, and is difficult to collect in the subsequent paper collection process, the air blowing device is attached to the humidification process, the phenomenon that the paper is attached to the conveying belt is effectively weakened, and the printing process and the paper collection process are guaranteed to be carried out smoothly.

A humidification induction switch 331 for controlling the on-off of the humidifier 33, a dehumidification induction switch 341 for controlling the on-off of the dehumidifier 34 and a humidity control induction switch 355 for controlling the on-off of the humidity controller 35 are arranged in the humidity control shell 31, the humidification induction switch 331 is arranged between the humidifier 33 and the inlet end of the conveying channel 36, the dehumidification induction switch 341 is arranged between the dehumidifier 34 and the humidifying inclined plane 12, the humidity control induction switch 355 is arranged between the humidity controller 35 and the dehumidification plane 13, when the humidification induction switch 331 triggers the humidity control induction switch 355 first, the spray blower 3541 and the humidifier 33 are started together, when the dehumidification induction switch 341 triggers the humidity control induction switch 355 first, the heating blower 3531 and the dehumidifier 34 are started together, the humidifier 33 and the dehumidifier 34 are connected in parallel, the humidifier 33 and the spray blower 3541 are connected in series, the dehumidifier 34 and the blowing heating blower 3531 are connected in series, it is possible to form a structure in which the spray blower 3541 is activated upon activation of the humidifier 33 or the heat blower 3531 is activated upon activation of the dehumidifier 34, thereby ensuring that the double-sided humidification and the double-sided dehumidification of the humidity control apparatus are integrated and the dehumidification-humidification mixing operation does not occur.

Sensing device 32 is including setting up hygrometer and the thermometer that is used for showing the temperature and the humidity that sensing device 32 detected on the wet shell 31 lateral wall of accuse, the design of this hygrometer and thermometer can the audio-visual condition of seeing out temperature and humidity in the workshop of person of facilitating the use, and because sensing device 32 exposes externally (sensing device 32 exposes the humidity that sets up in the seizure workshop that can be more accurate, thereby ensure the accuracy of humidity), probably under long-time use, there is the inaccurate phenomenon of response, the user can be through with the hygrometer and the thermometer contrast in the wet shell 31 of accuse with the hygrometer and the thermometer in area certainly, not only detect conveniently and can be used for detecting whether sensitive sensing device 32, thereby guarantee that this offset press can normally continue the function.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a humidity control device for offset press which characterized by: the paper sheet conveying device comprises a conveying device (1) for conveying paper sheets and a humidity regulator (3) capable of dehumidifying or humidifying the paper sheets in the conveying device (1), wherein the conveying device (1) is arranged in a trapezoidal structure, and the conveying device (1) sequentially comprises a humidifying inclined plane (12) in an inclined edge structure, a dehumidifying plane (13) in a plane structure and a humidity control inclined plane (14) in an inclined edge structure along the conveying direction;

the humidity regulator (3) comprises a humidity control shell (31) surrounding the outer side of the conveying device (1) and a sensing device (32) used for detecting the relative humidity in a workshop, wherein a humidifier (33) used for carrying out dampening solution humidifying operation on one side surface of paper on a humidifying inclined plane (12), a dehumidifier (34) used for carrying out dehumidifying operation on the paper on a dehumidifying plane (13) and a humidity control device (35) used for humidifying or dehumidifying operation on the other side surface of the paper on a humidity control inclined plane (14) are arranged in the humidity control shell (31), the humidifier (33) is arranged above the relative position of the humidifying inclined plane (12), the dehumidifier (34) is arranged at the relative position of the dehumidifying plane (13), the humidity control device (35) is arranged below the relative position of the humidity control inclined plane (14), and a centralized processor is coupled between the sensing device (32) and the humidity control device (35) and the dehumidifier (34) and the humidifier (33), the humidity control shell (31) and the conveying frame (11) are encircled to form a conveying channel (36) for conveying paper, and the conveying device (1) conveys the paper from the inlet end of the conveying channel (36) at the humidifying inclined plane (12) and then passes through the dehumidifying plane (13) and then conveys the paper out from the outlet end of the conveying channel (36).

2. The humidity adjusting apparatus for an offset printing press according to claim 1, wherein: conveyor (1) is including installing in the frame and be conveyer frame (11) that the trapezium structure set up and being used for carrying the paper along conveyer belt (2) of conveyer frame (11), three faces that conveyer frame (11) was installed in the frame are humidification inclined plane (12), dehumidification plane (13), accuse wet inclined plane (14) respectively, the last bleeder vent that is equipped with of conveyer belt (2), conveyer belt (2) are including being located first conveyer belt (21) on humidification inclined plane (12), and be located second conveyer belt (22) on dehumidification plane (13), and be located third conveyer belt (23) on accuse wet inclined plane (14), and be used for driving first conveyer belt (21), second conveyer belt (22), third conveyer belt (23) pivoted live-rollers (24) and drive live-rollers (24) pivoted rotation motor, conveyor (1) carry first conveyer belt (21) earlier in the paper conveying process and carry through first conveyer belt (21) again Onto the second conveyor belt (22) and is transported by the second conveyor belt (22) onto the third conveyor belt (23) and is discharged by the third conveyor from the outlet end of the transport path (36).

3. The humidity adjusting apparatus for an offset printing press according to claim 1, wherein: the dehumidifier (34) comprises a heat drier arranged on the upper side and the lower side of the dehumidification plane (13) and used for carrying out heat drying on the two sides of the paper and/or an air drier arranged on the upper side of the dehumidification plane (13) and used for carrying out air drying on the front side of the paper.

4. The humidity adjusting apparatus for an offset printing press according to claim 1, wherein: the wet outer shell (31) of accuse is located wet inclined plane (14) of accuse department transfer passage (36) exit end and is provided with alcohol atomizer (311) that can carry out alcohol spraying to paper both sides, be provided with control inductive switch (312) that control alcohol atomizer (311) automatic opening and closing in wet outer shell (31) of accuse, control inductive switch (312) set up between alcohol atomizer (311) and dehumidification plane (13), be provided with the on-off switch that is used for controlling control inductive switch (312) to open and close on wet outer shell (31) of accuse.

5. The humidity adjusting apparatus for an offset printing press according to claim 1, wherein: the wet control device (35) comprises a first air inlet (351) arranged below the humidifying inclined plane (12), a second air inlet (352) arranged below the dehumidifying plane (13), and a first air outlet (353) and a second air outlet (354) arranged below the wet control inclined plane (14), wherein a heating air blowing device (3531) used for dehumidifying paper on the wet control inclined plane (14) is arranged in the first air outlet (353), a spraying air blowing device (3541) used for humidifying paper on the wet control inclined plane (14) is arranged in the second air outlet (354), and the heating air blowing device (3531) or the spraying air blowing device (3541) can absorb the paper on the humidifying inclined plane (12) and the dehumidifying plane (13) in the operation process.

6. The humidity adjusting apparatus for an offset printing press according to claim 5, wherein: a humidification induction switch (331) for controlling the on-off of the humidifier (33), a dehumidification induction switch (341) for controlling the on-off of the dehumidifier (34) and a humidity control induction switch (355) for controlling the on-off of the humidity controller (35) are arranged in the humidity control shell (31), the humidifying induction switch (331) is arranged between the humidifier (33) and the inlet end of the conveying channel (36), the dehumidification inductive switch (341) is arranged between the dehumidifier (34) and the humidification inclined plane (12), the humidity control inductive switch (355) is arranged between the humidity controller (35) and the dehumidification plane (13), when the humidification induction switch (331) triggers the humidity control induction switch (355) first and then triggers the spraying and blowing device (3541) and the humidifier (33) are started together, when the dehumidification induction switch (341) triggers the humidity control induction switch (355) first and then triggers the heating blower device (3531) and the dehumidifier (34) are started together.

7. The humidity adjusting apparatus for an offset printing press according to claim 1, wherein: the sensing device (32) comprises a hygrometer and a thermometer which are arranged on the outer side wall of the humidity control shell (31) and used for displaying the temperature and the humidity detected by the sensing device (32).