CN218753859U - Energy-saving drying device of printing machine - Google Patents

Abstract

The application relates to an energy-saving drying device of a printing machine, which relates to the technical field of printing equipment and comprises a box body and a tensioning device; the box body is provided with a paper inlet and a paper outlet, and the tensioning device is positioned in the inner cavity of the box body; the tensioning device comprises an adjusting assembly, a tensioning assembly and a limiting assembly, wherein the adjusting assembly comprises a first screw and a mounting plate; the tensioning assembly comprises an installation frame, a hand wheel and a polished rod; the limiting assembly comprises a connecting rod, a second screw, a fixing frame and a second roller; the mounting panel is installed in first screw rod, and can follow the screw rod and slide, installing frame and mounting panel fixed connection, and the hand wheel is used for driving the polished rod and rotates along the installing frame, and the second screw rod is with the coaxial and threaded connection of polished rod, and the second screw rod is equipped with the spacing groove, and the spacing inslot is equipped with the stopper, connecting rod one end and stopper fixed connection, the other end and installing frame fixed connection, mount and second screw rod fixed connection, the second running roller rotates with the mount to be connected. This application has the paper appropriate tensioning, improves drying efficiency's effect.

Description

Energy-saving drying device of printing machine

Technical Field

The application relates to the technical field of printing equipment, in particular to an energy-saving drying device of a printing machine.

Background

In the process of printing materials such as paper, ink is usually transferred to the surfaces of the paper and the like through a printing roller, so that the surfaces of the paper are provided with patterns, after printing operation is carried out, the next operation can be carried out usually after the ink on the surface of the device is completely dried, otherwise, the materials of the paper and the like are adhered, so that the printing effect is reduced, even printed products are scrapped, and a large amount of resources are wasted.

In the correlation technique, the drying cabinet includes paper feed mouth and exit slot, and paper etc. can enter into the drying cabinet through the paper feed mouth after accomplishing the printing, is equipped with the drying-machine in the drying cabinet, and the drying-machine provides dry high temperature air supply for the drying cabinet, makes and keeps high temperature dry in the work effect to carry out the drying to the paper, the drying of printing ink with higher speed accomplishes dry paper and leaves the drying cabinet from the exit slot, and carry out subsequent relevant operation.

In view of the above-mentioned related art, the inventor believes that there is a defect that after the paper finishes the printing operation, the paper carries a large amount of moisture, and if the paper cannot be completely unfolded when entering the drying oven, incomplete drying may be caused, so that the ink is insufficiently dried, and thus incomplete drying may be caused, which may cause adhesion of the paper in the subsequent related operation.

SUMMERY OF THE UTILITY MODEL

In order to improve the drying effect of paper with paper suitable tensioning, this application provides energy-conserving drying device of printing machine.

The application provides energy-conserving drying device of printing machine adopts following technical scheme:

the energy-saving drying device of the printing machine comprises a drying box and a tensioning device;

the drying box comprises a box body, the box body is provided with a paper inlet and a paper outlet, and the tensioning device is positioned in an inner cavity of the box body;

the tensioning device comprises an adjusting assembly, a tensioning assembly and a limiting assembly, wherein the adjusting assembly comprises a first screw and a mounting plate; the tensioning assembly comprises an installation frame, a hand wheel and a polished rod; the limiting assembly comprises a connecting rod, a second screw, a fixing frame and a second roller;

the mounting panel is installed in first screw rod, and can slide along the screw rod, mounting frame and mounting panel fixed connection, and the hand wheel is used for driving the polished rod and rotates along the mounting frame, and the second screw rod is coaxial and threaded connection with the polished rod, and the second screw rod is equipped with the spacing groove, and the spacing inslot is equipped with the stopper, connecting rod one end and stopper fixed connection, the other end and mounting frame fixed connection, mount and second screw rod fixed connection, the second running roller rotates with the mount to be connected.

Through adopting above-mentioned technical scheme, the paper gets into the box by the paper feed mouth and leaves the box by the exit slot, operating personnel can drive the polished rod through rotating the hand wheel and rotate along the installing frame, first screw rod and polished rod threaded connection, and the lateral wall of first screw rod is equipped with the spacing groove, the stopper of spacing inslot passes through connecting rod fixed connection with the installing frame, make the polished rod when rotatory, first screw rod slides along the length direction of polished rod under the combined action of stopper and spacing groove, make the mount slide along the length direction of polished rod, drive the second running roller and slide along the length direction of polished rod, second running roller butt in paper, and carry out the tensioning to the paper, through setting up overspeed device tensioner, can provide and make the paper be in the state of tensioning, and make the device be in the state of extension, thereby the effect that the liter paper was dried.

Optionally, the drying device is further included, the drying box includes a box cover, the box cover is fixedly connected with the box body, and an air inlet hole is formed in the top wall of the box cover; drying device includes the stoving subassembly, the stoving subassembly includes drying-machine, intake pipe and breather pipe, the drying-machine with box fixed connection, the intake pipe is worn to locate the intake port and with drying-machine fixed connection, the breather pipe can be followed the box slides, the welding has a plurality of shower nozzles on the breather pipe, just the drying-machine the intake pipe the breather pipe with the shower nozzle intercommunication.

By adopting the technical scheme, the drying box is in a relatively closed state through the arrangement of the box cover, so that the temperature of the box body is kept stable; the drying-machine will be hot-blast through wearing to locate the intake pipe of inlet port and carry to the breather pipe, is equipped with the shower nozzle on the breather pipe and can follows the box and slide for the breather pipe can deliver to a plurality of positions of stoving incasement with the hot-blast that the drying-machine provided, thereby dries the paper of stoving incasement.

Optionally, the paper outlet opening flattening device comprises two flattening components, wherein the flattening components are located in the inner cavity of the box body, the two flattening components are located below the paper inlet opening and above the paper outlet opening respectively, each flattening component comprises a first roller wheel, a support frame and a flattening device, the support frame is fixedly connected with the box body, the first roller wheels are rotatably connected with the support frame and close to the top wall of the support frame, the flattening devices of the paper inlet opening are fixed on the top wall of the support frame and close to the flattening devices of the paper outlet opening, and the bottom wall of the support frame is fixed with the flattening devices of the paper outlet opening.

Through adopting above-mentioned technical scheme, the flat ware of exhibition can be opened up the paper and flat, and the paper is gone into the inner chamber of stoving case from the paper feed port after, through the flat ware exhibition of exhibition, then around connecing in first running roller, first running roller carries out steady transition to turning to of paper, and the paper is through tensioning and stoving back, around connecing in the first running roller of exit slot department, through the direction back of first running roller, by the flat back of exhibition of flat ware, leaves the stoving case through the exit slot.

Optionally, the tensioning device further comprises an adjusting assembly, the adjusting assembly comprises a first motor, a first screw rod, a screw nut and a guide rod, the first motor is used for driving the first screw rod to rotate along the box body, the screw nut is in threaded connection with the first screw rod and is fixedly connected with the installation frame, the installation frame is in sliding connection with the guide rod, and the guide rod is fixedly connected with the box body.

By adopting the technical scheme, the first motor drives the first screw to rotate, the screw nut is in threaded connection with the first screw and is fixed on the mounting frame, so that the first motor drives the mounting frame to move along the length direction of the first screw, the mounting frame is in sliding connection with the guide rod, and the mounting frame can slide along the first screw through the limit of the guide rod; the guide rod is fixed in the box, can provide stable support for the spacing of installing frame.

Optionally, the number of the vent pipes is two, and the air injection direction of the nozzles of the two vent pipes is a direction toward the two vent pipes.

Through adopting above-mentioned technical scheme, the breather pipe is equipped with two, and the jet-propelled direction orientation of the shower nozzle on two breather pipes is close to one side each other, and the paper passes through between two breather pipes, can dry the two sides of paper simultaneously, prevents that the paper from because the degree of being heated on two sides is uneven, and leads to the drying effect difference to appear, finally influences the effect of product.

Optionally, the tensioning assembly further comprises a first bevel gear, a connecting pipe and a second bevel gear, the connecting pipe is arranged in the box body in a penetrating mode, the connecting pipe is connected with the mounting frame in a rotating mode, the hand wheel is located outside the box body and is fixedly connected with the connecting pipe in a coaxial mode, the first bevel gear is located in an inner cavity of the mounting frame and is fixedly connected with the connecting pipe in a coaxial mode, the first bevel gear is meshed with the second bevel gear, and the second bevel gear is fixedly connected with the polished rod in a coaxial mode.

Through adopting above-mentioned technical scheme, operating personnel can be through rotating the hand wheel, and the hand wheel is located the outside of stoving case and drives first bevel gear rotatory through the connecting pipe, first bevel gear and second bevel gear meshing, second bevel gear and polished rod fixed connection, can realize that operating personnel controls the distance at second screw rod and polished rod both ends through rotating the hand wheel to control the distance of second roller to stoving case lateral wall, can control the tensioning degree to the paper.

Optionally, the drying device further comprises a movable assembly, the movable assembly comprises a second motor, a gear and a rack, the box body is provided with a sliding groove, a sliding block is arranged in the sliding groove, the sliding block is fixedly connected with the ventilating pipe, the second motor is fixedly connected with the sliding block and used for driving the gear to rotate, and the gear is meshed with the rack.

Through adopting above-mentioned technical scheme, the spout has been seted up to the lateral wall of box, is equipped with the slider in the spout, second motor and slider fixed connection, and drive gear is rotatory, and gear and rack toothing can realize the cooperation relation through second motor, gear, rack, make the slider slide along the spout, and then drive the breather pipe and slide along the spout to make the breather pipe dry to the paper of different positions.

Optionally, the drying device further comprises a condensing box, a gas outlet is formed in the box body, the condensing box is communicated with the gas outlet, a condensing pipe is arranged in the condensing box, and the condensing pipe is fixedly connected with the condensing box.

Through adopting above-mentioned technical scheme, the condensing box can cool off exhaust high-temperature gas in the stoving case, makes the gas temperature through the condensing box descend to reduce ambient temperature, through setting up the condenser pipe, can increase high-temperature gas and condensing box cooling part's area of contact, improve the cooling efficiency to high-temperature gas.

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

1. by arranging the tensioning device, the paper can be tensioned, the tensioning degree can be adjusted, and the paper with different drying degrees can be tensioned, so that the paper is in a fully unfolded state, and the paper drying effect is improved;

2. by providing a flattening assembly. When the paper leaves the drying box after drying is started and finished, the paper is always kept in the state of the exhibit, so that the paper is convenient to dry and perform subsequent operation;

3. through setting up the condensing box, can cool off stoving incasement exhaust hot-air, avoid making the temperature around the device rise, reduce operating personnel's environmental comfort.

Drawings

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

FIG. 2 is a cross-sectional view of a first perspective of an embodiment of the present application;

FIG. 3 is a cross-sectional view of a second perspective of the present application;

FIG. 4 is an enlarged schematic view of portion A of FIG. 3;

FIG. 5 is a sectional view of the condenser case.

Reference numerals are as follows: 1. drying box; 11. a box body; 111. connecting grooves; 112. a chute; 113. mounting grooves; 114. a slider; 12. a box cover; 121. an air inlet; 122. an air outlet; 123. a fan; 124. an air duct; 13. a paper inlet; 14. a paper outlet; 15. a flattening assembly; 151. a first roller; 152. a support frame; 153. a spreader; 2. a tensioning device; 21. an adjustment assembly; 211. a first motor; 212. a first screw; 213. a guide bar; 214. a lead screw nut; 215. mounting a plate; 216. positioning holes; 217. a through hole; 22. a tension assembly; 221. installing a frame; 222. a hand wheel; 223. a connecting pipe; 224. a first bevel gear; 225. a second bevel gear; 226. a polish rod; 226. a thread groove; 23. a limiting component; 231. a connecting rod; 232. a second screw; 233. a fixed mount; 234. a second roller; 235. a limiting groove; 236. a limiting block; 3. a drying device; 31. a movable component; 311. a second motor; 312. a gear; 313. a rack; 314. mounting blocks; 32. a drying assembly; 321. a dryer; 322. an air inlet pipe; 323. a flow divider; 324. a breather pipe; 325. a spray head; 33. a condenser tank; 331. a condenser tube; 332. a water outlet; 333. a valve; 334. and (7) an exhaust port.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses energy-conserving drying device of printing machine.

Referring to fig. 1, 2 and 3, the energy-saving drying device of the printing machine comprises a drying box 1, a tensioning device 2 and a drying device 3.

Referring to fig. 1, 2 and 3, the drying box 1 includes a box body 11 and a box cover 12, in this embodiment, the box body 11 is preferably a hollow rectangular box body 11, and the top of the box body 11 is open, in this embodiment, the box cover 12 is preferably a rectangular box cover 12, and the box cover 12 is fixed on the top wall of the box body 11 through screws; the end face of the box body 11 close to the printer is provided with a paper inlet 13 and a paper outlet 14 in a penetrating manner along the height direction perpendicular to the box body 11, and the paper inlet 13 is positioned below the paper outlet 14.

Referring to fig. 1, fig. 2 and fig. 3, two flattening assemblies 15 are arranged in drying box 1, two flattening assemblies 15 are respectively located above paper inlet 13 and below paper outlet 14, flattening assembly 15 includes a first roller 151, a support frame 152 and a flattening device 153, support frame 152 is horizontally disposed, the end surface of support frame 152 close to the side wall of drying box 1 is fixed to the side wall of drying box 1 through screws, flattening device 153 close to paper inlet 13 is fixed to the bottom wall of support frame 152 through screws, flattening device 153 close to paper outlet 14 is fixed to the top wall of support frame 152 through screws, the length direction of first roller 151 is parallel to the length direction of paper inlet 13, first roller 151 is located at the end surface of support frame 152 far away from the side wall of drying box 1, and is rotatably connected with support frame 152 through a bearing.

Referring to fig. 1, 2 and 3, the tensioning device 2 includes an adjusting assembly 21, the adjusting assembly 21 includes a first motor 211, a first screw 212, a guide rod 213, a lead screw nut 214 and a mounting plate 215, the adjusting assembly 21 is located in an inner cavity of the box body 11, in this embodiment, the first motor 211 is preferably a servo motor, a housing of the first motor 211 is fixed to a bottom wall of the box cover 12 through screws, the first screw 212 and the guide rod 213 are both vertically placed, one end of the first screw 212 is coaxially fixed to an output shaft of the first motor 211 through a coupler, the other end of the first screw is rotatably connected to the box body 11 through a bearing connection mode, the lead screw nut 214 is in threaded connection with the first screw 212, a positioning hole 216 and a through hole 217 are formed through a top wall of the mounting plate 215 in a vertical direction, the lead screw nut 214 is located in the positioning hole 216 and is fixedly connected to the mounting plate 215 through screws; the guide rod 213 is inserted into the through hole 217, the length direction of the guide rod 213 is parallel to the length direction of the first screw 212, and the bottom wall of the guide rod 213 is fixed to the bottom wall of the box 11 by welding.

Referring to fig. 1, 3 and 4, the tensioning device 2 further includes a tensioning assembly 22, the tensioning assembly 22 includes a mounting frame 221, a hand wheel 222, a connecting pipe 223, a first bevel gear 224, a second bevel gear 225 and a polish rod 226, the mounting frame 221 is horizontally disposed and fixed to the top wall of the mounting plate 215 through screws, a connecting groove 111 penetrates through a side wall of the box 11 perpendicular to a side wall where the paper feeding port 13 is located along a height direction of the box 11, a length direction of the connecting pipe 223 is parallel to a length direction of the paper feeding port 13 and sequentially penetrates through the connecting groove 111 and the mounting frame 221, the connecting pipe 223 is rotatably connected with the mounting frame 221 through a bearing, the hand wheel 222 is located outside the drying box 1 and coaxially and fixedly connected with the connecting pipe 223 through screws, the first bevel gear 224 is located inside the mounting frame 221 and coaxially and fixedly connected with the connecting pipe 223 through screws, the first bevel gear 225 is engaged with the second bevel gear 224, the polish rod 226 is horizontally disposed and longitudinally perpendicular to the length direction of the connecting pipe 223, the polish rod 226 penetrates through a side wall of the mounting frame 221 and rotatably connected with the second bevel gear 225.

Referring to fig. 1, fig. 3 and fig. 4, the tensioning device 2 further includes a limiting assembly 23, the limiting assembly 23 includes a connecting rod 231, a second screw rod 232, a fixing frame 233 and a second roller 234, a threaded groove 226 is formed in an end surface of the polish rod 226 away from the second bevel gear 225, the second screw rod 232 is inserted into the threaded groove 226 and is in threaded connection with the polish rod 226, a limiting groove 235 is formed in a side wall of the second screw rod 232 along a length direction of the second screw rod 232, a limiting block 236 is arranged in the limiting groove 235, the length direction of the connecting rod 231 is parallel to the length direction of the polish rod 226 and is fixed on a top wall of the mounting frame 221 in a welding manner, the limiting block 236 is welded on a bottom wall of the connecting rod 231 away from one end of the second bevel gear 225, the fixing frame 233 is horizontally disposed, the fixing frame 233 is fixed on one end of the second screw rod 232 away from the second bevel gear 225 through a screw, the length direction of the second roller 234 is parallel to the length direction of the first roller 151, and the second roller 234 is rotatably connected with the fixing frame 233 through a bearing.

Referring to fig. 1, 2 and 3, the drying apparatus 3 includes a movable assembly 31, and the movable assembly 31 includes a second motor 311, a gear 312, a rack 313 and a mounting block 314. The box 11 is parallel to the side wall of the connecting groove 111 and is provided with a sliding groove 112 and a mounting groove 113 along the light direction of the box 11, a sliding block 114 is arranged in the sliding groove 112, the sliding block 114 is fixedly connected with the mounting block 314 through a screw, in the embodiment, the second motor 311 is preferably a servo motor, the housing of the second motor 311 is fixed on the side wall of the mounting block 314 through a screw, the gear 312 is coaxially fixed on the output shaft of the second motor 311 in a key connection mode, the rack 313 is located in the mounting groove 113 and is fixedly connected with the box 11 through a screw, and the gear 312 is meshed with the rack 313.

Referring to fig. 2, 3 and 4, the drying device 3 further includes a drying assembly 32, the drying assembly 32 includes a dryer 321, an air inlet pipe 322, a diverter 323 and two air pipes 324, the top wall of the box cover 12 is penetrated and provided with the air inlet hole 121 along the vertical direction, the air inlet pipe 322 is penetrated through the air inlet hole 121, the housing of the dryer 321 is fixed on the top wall of the box cover 12 through screws, the two air pipes 324 are placed in parallel, the length direction of the air pipes 324 is parallel to the length direction of the paper inlet 13, the air pipes 324 are all fixedly connected with the diverter 323 through screws, the diverter 323 is fixedly connected with the dryer 321 through screws, the spray heads 325 are welded on the two air pipes 324 along the length direction, the air spraying direction of the spray heads 325 is the direction in which the two air pipes 324 approach each other, and the air inlet pipe 322, the dryer 321, the diverter 323, the air pipes 324 and the spray heads 325 are communicated.

Referring to fig. 2, 3 and 5, an air outlet 122 is formed in the top wall of the case cover 12 in a penetrating manner, a fan 123 is arranged at the air outlet 122, and the fan 123 is fixedly connected with the case cover 12 through screws; the air outlet 122 is fixedly provided with an air duct 124 through screws, the air duct 124 is communicated with the air outlet 122, the drying device 3 further comprises a condensing box 33, the condensing box 33 is communicated with the air duct 124, a condensing pipe 331 is arranged in the condensing box 33, the condensing pipe 331 is fixedly connected with the condensing box 33 through screws, the bottom of the condensing box 33 is in a necking shape, a water outlet 332 is formed in the necking position, a valve 333 is arranged at the water outlet 332, the valve 333 is fixedly connected with the condensing box 33 through screws, and a plurality of air outlets 334 are arranged on the top wall of the condensing box 33 in a penetrating mode.

The implementation principle of the energy-saving drying device of the printing machine in the embodiment of the application is as follows: the paper to be dried enters the drying box 1 through the paper inlet 13, is flattened by the flattening device 143, is wound around the first roller 141 after being flattened, is wound around the second roller 234 of the tensioning device 2, is finally wound around the first roller 141 at the paper outlet 14, and leaves the paper outlet 14 through the flattening of the flattening device 143.

An operator can rotate the hand wheel 222 to drive the first bevel gear 224 to rotate and to be meshed with the second bevel gear 225, the second bevel gear 225 drives the polished rod 226 to rotate, and the second screw 232 slides along the polished rod 226 under the action of the connecting rod 231 and the limiting block 236, so that the distance from the second roller wheel 234 to the side wall of the box body 11 is changed, and the tensioning degree is changed; the first motor 211 drives the first screw 212 to rotate, and the mounting plate 215 slides along the first screw 212 under the combined action of the lead screw nut 214 and the guide rod 213, so as to change the position of the second roller 234, and further change the position of the tension of the paper.

The second motor 311 drives the mounting block 314 to slide along the sliding slot 315 by engaging the gear 312 with the rack 313, so as to change the drying position of the two air pipes 324 on the paper, thereby improving the drying effect of the paper.

The hot air in the drying box 1 enters the condensing box 33 under the action of the fan 18 and contacts the condensing pipe 331 to cool the hot air, and the water vapor in the hot air is liquefied and then can leave the condensing box 33 through the valve 333.

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: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. Energy-conserving drying device of printing machine, its characterized in that: comprises a drying box (1) and a tension device (2);

the drying box (1) comprises a box body (11), the box body (11) is provided with a paper inlet (13) and a paper outlet (14), and the tensioning device (2) is positioned in an inner cavity of the box body (11);

the tensioning device (2) comprises an adjusting component (21), a tensioning component (22) and a limiting component (23), wherein the adjusting component (21) comprises a first screw rod (212) and a mounting plate (215); the tensioning assembly (22) comprises a mounting frame (221), a hand wheel (222) and a polish rod (226); the limiting assembly (23) comprises a connecting rod (231), a second screw (232), a fixing frame (233) and a second roller (234);

mounting panel (215) are installed in first screw rod (212), and can slide along the screw rod, installing frame (221) and mounting panel (215) fixed connection, hand wheel (222) are used for driving polished rod (226) to rotate along installing frame (221), second screw rod (232) and polished rod (226) are coaxial and threaded connection, second screw rod (232) are equipped with spacing groove (235), be equipped with stopper (236) in spacing groove (235), connecting rod (231) one end and stopper (236) fixed connection, the other end and installing frame (221) fixed connection, mount (233) and second screw rod (232) fixed connection, second running roller (234) rotate with mount (233) and are connected.

2. The energy-saving drying device of the printing machine as claimed in claim 1, wherein: the drying box comprises a box body (11) and is characterized by further comprising a drying device (3), wherein the drying box (1) comprises a box cover (12), the box cover (12) is fixedly connected with the box body (11), and an air inlet hole (16) is formed in the top wall of the box cover (12); drying device (3) are including drying assembly (32), drying assembly (32) include drying-machine (321), intake pipe (322) and breather pipe (324), drying-machine (321) with box (11) fixed connection, intake pipe (322) wear to locate intake port (16) and with drying-machine (321) fixed connection, breather pipe (324) can be followed box (11) slide, the welding has a plurality of shower nozzles (325) on breather pipe (324), just drying-machine (321) intake pipe (322), breather pipe (324) with shower nozzle (325) intercommunication.

3. The energy-saving drying device of the printing machine as claimed in claim 1, wherein: still include two flat subassemblies of exhibition (15), flat subassembly (15) of exhibition is located box (11) inner chamber, two flat subassembly (15) of exhibition is located respectively the below of paper feed mouth (13) with the top of exit slot (14), it includes first running roller (151), support frame (152) and exhibition flat ware (153) to flatten subassembly (15), support frame (152) with box (11) fixed connection, first running roller (151) with support frame (152) rotate to be connected, are close to flat ware (153) of paper feed mouth (13) are fixed in the roof of support frame (152), are close to flat ware (153) of exit slot (14) are fixed in the diapire of support frame (152).

4. The energy-saving drying device of the printing machine as claimed in claim 1, wherein: overspeed device tensioner (2) still includes adjusting part (21), adjusting part (21) includes first motor (211), first screw rod (212), screw nut (214) and guide bar (213), first motor (211) are used for the drive first screw rod (212) are followed box (11) are rotatory, screw nut (214) with first screw rod (212) threaded connection, and with installing frame (221) fixed connection, installing frame (221) with guide bar (213) sliding connection, guide bar (213) with box (11) fixed connection.

5. The energy-saving drying device of the printing machine as claimed in claim 2, wherein: the number of the vent pipes (324) is two, and the air injection direction of the spray heads (325) of the two vent pipes (324) is towards the direction that the two vent pipes (324) approach each other.

6. The energy-saving drying device of the printing machine as claimed in claim 1, wherein: the tensioning assembly (22) further comprises a first bevel gear (224), a connecting pipe (223) and a second bevel gear (225), the connecting groove (111) is formed in the box body (11), the connecting pipe (223) penetrates through the connecting groove (111), the connecting pipe (223) is rotatably connected with the mounting frame (221), the hand wheel (222) is located outside the box body (11) and coaxially and fixedly connected with the connecting pipe (223), the first bevel gear (224) is located in an inner cavity of the mounting frame (221) and coaxially and fixedly connected with the connecting pipe (223), the first bevel gear (224) is meshed with the second bevel gear (225), and the second bevel gear (225) is coaxially and fixedly connected with the polish rod (226).

7. The energy-saving drying device of the printing machine as claimed in claim 2, wherein: drying device (3) still include movable assembly (31), movable assembly (31) include second motor (311), gear (312) and rack (313), box (11) are equipped with spout (112), be equipped with slider (114) in spout (112), slider (114) with breather pipe (324) fixed connection, second motor (311) with slider (114) fixed connection, and be used for the drive gear (312) are rotatory, gear (312) and rack (313) meshing.

8. The energy-saving drying device of the printing machine as claimed in claim 2, wherein: drying device (3) still include condensing box (33), gas outlet (122) have been seted up on box (11), condensing box (33) with gas outlet (122) intercommunication, be equipped with condenser pipe (331) in condensing box (33), condenser pipe (331) with condensing box (33) fixed connection.

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