Printing system and production method for realizing green and environmentally friendly printing of books and periodicals

Abstract

The present invention discloses a printing system for achieving green and environmentally friendly printing of books and periodicals. The system comprises a paper feeder, a printing press, a dryer, a paper folding machine, a binder, and a die-cutting machine connected in sequence. The system also comprises an environmental conditioning device and a waste paper collection device. The environmental conditioning device is installed in conjunction with the printing press, the dryer, and the binder. The waste paper collection device is used to collect waste paper leftovers after being cut by the die-cutting machine, and the waste paper collection device is linked to the environmental conditioning device. The present invention also discloses a production method for achieving green and environmentally friendly printing of books and periodicals. The printing paper is loaded into the paper feeder and sequentially processed through the printing press, the dryer, the paper folding machine, the binder, and the die-cutting machine to produce a book or periodical. The environmental conditioning device is capable of dissipating heat from the printing roller and transferring waste paper leftovers to the waste paper collection device for output. The environmental conditioning device is also capable of processing and discharging generated toxic gases to meet the heating needs of related equipment, thereby achieving the purpose of green and environmentally friendly printing of books and periodicals.

Description

Technical Field

[0001] The present invention relates to the technical field related to book and periodical printing, and in particular to a printing system and a production method for realizing green and environmentally friendly printing of books and periodicals. Background Art

[0002] In the process of producing and printing books and periodicals, a special printing system for book and periodical production is required, which involves a paper feeder for transmitting printing paper, a printing press for printing the printing content, a dryer for drying ink, a laminating machine for laminating the printing paper to improve the gloss, a paper folding machine for folding the printing paper for easy binding into books, a binding machine for binding the folded printing paper, and a die-cutting machine for cutting edges and corners.

[0003] Each of the above equipment has a corresponding application environment during operation. During the operation of the printing press, it is necessary to ensure that its printing roller operates within a specific temperature range. When the temperature threshold is exceeded, it will make it difficult for the ink to adhere to the printing paper, affecting the printing effect; when the dryer, laminating machine, and binding machine are working, they all involve heating components and will also produce organic poisons. When the production workshop is running at full capacity, the toxic substances produced will affect the health of the staff. At the same time, the toxic substances also carry a lot of heat, making it difficult to directly purify them; due to the large batch size of books and periodicals, a large amount of waste paper will be generated during the cutting process of the die-cutting machine, which often accounts for 10-30% of the total paper consumption.

[0004] Due to the above-mentioned problems, there are serious environmental problems when books and periodicals are produced and printed in large quantities, making it difficult to ensure the green production of books and periodicals. Summary of the Invention

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a printing system and production method for achieving green and environmentally friendly printing of books and periodicals, which can reuse the waste paper generated, make full use of the waste heat generated to heat related equipment, and effectively treat toxic gases, so as to achieve the purpose of green and environmentally friendly printing of books and periodicals.

[0006] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a printing system for realizing green and environmentally friendly printing of books and periodicals, including a paper feeder, a printing press, a dryer, a paper folding machine, a binder, and a die-cutting machine connected in sequence, and also including an environmental conditioning device and a waste paper collection device. The environmental conditioning device is installed in conjunction with the printing press, the dryer, and the binder. The waste paper collection device is used to collect waste paper left over from the die-cutting machine, and the waste paper collection device is linked to the environmental conditioning device.

[0007] The environmental conditioning device includes an exhaust hood, a heat exchange channel, an air purifier, an air supply device, a heat dissipation mechanism, a mixing device, and a heating device. The exhaust hood is arranged above the dryer and the binder and is connected to the upstream end of the heat exchange channel. The downstream end of the heat exchange channel is connected to the air purifier. The air supply device is used to blow air into the die-cutting machine, and the air blown in by the air supply device is input into the mixing device through the heat exchange channel for heat exchange. The heat dissipation mechanism is installed on the printing roller of the printing machine, and the heat dissipation mechanism, the heating device and the mixing device are connected. The heating device provides heat to the dryer and the binder.

[0008] The waste paper collection device includes a transmission channel and a transmission mechanism. The transmission channel is arranged between the air supply device and the heat exchange channel and is connected to the die-cutting machine. The transmission mechanism is installed in the transmission channel and is used to output and collect the leftover waste paper along the transmission channel.

[0009] In some of these implementations, in order to ensure that the paper feeder, printing machine, dryer, paper folding machine, binding machine, and die-cutting machine can be stably installed, while avoiding the leakage of toxic gases generated during the production process, and ensuring that the environmental conditioning device can effectively dissipate heat from the printing machine while collecting heat, the following technical solutions are provided.

[0010] A protective outer cover is also provided, in which a first mounting frame, a second mounting frame, a third mounting frame, and a fourth mounting frame are fixedly connected in sequence. The paper feeder is mounted on the first mounting frame, the printing machine is mounted on the second mounting frame, the dryer, paper folding machine, and binding machine are mounted on the third mounting frame, the die-cutting machine is mounted on the fourth mounting frame, and the environmental conditioning device and waste paper collection device are mounted on the protective outer cover.

[0011] On the basis of the above technical solutions, in order to ensure that the air supply device and the heat exchange channel in the environmental conditioning device are stably installed in the protective outer cover, the following technical solutions regarding the air supply device and the heat exchange channel are provided.

[0012] The air supply device includes a first air pump and an air supply pipe. The first air pump is fixedly installed on the outside of the protective cover. The two ends of the air supply pipe are respectively connected to the first air pump and the protective cover; and the air supply pipe is arranged at the position of the fourth mounting bracket.

[0013] The heat exchange channel is fixedly installed at the bottom of the protective cover. A heat exchange space is provided between the heat exchange channel and the bottom wall of the protective cover. The heat exchange space is connected to the mixing device. The transmission channel is arranged between the heat exchange space and the air supply channel.

[0014] On the basis of the above technical solutions regarding the heat exchange channel, in order to further improve the heat exchange effect between the toxic gas and natural air in the heat exchange channel, the toxic gas extracted by the exhaust hood can be input into the upstream end of the heat exchange channel, and the toxic gas output from the downstream end of the upstream channel can enter the air purifier for purification treatment. The following technical solutions regarding the heat exchange channel are further provided.

[0015] The heat exchange channel is configured to be wavy, and a heat insulation layer is bonded to the upper surface of the heat exchange channel. Heat exchange fins are evenly fixed to the lower surface of the heat exchange channel, and the heat exchange fins are arranged in the heat exchange space.

[0016] The exhaust hoods include multiple groups, each of which is fixedly installed on the inner side of the top of the protective outer cover and arranged above the third mounting bracket. Each group of exhaust hoods is connected to the upstream end of the heat exchange channel through a first connecting pipe. The air purifier is fixedly installed on the outer side of the top of the protective outer cover, and the downstream end of the heat exchange channel is connected to the air purifier through a second connecting pipe, and a second exhaust pump is installed on the second connecting pipe.

[0017] In some implementations, in order to ensure that the mixing device can fully mix the hot air flowing out of the heat dissipation mechanism with the hot air heated in the heat exchange space for further heating and application by the heating device, the following technical solution for the mixing device is provided.

[0018] The mixing device includes a mixing box, an impeller, and stirring blades. The mixing box is fixedly installed at the bottom of the protective outer cover and is connected to the heat exchange space. The mixing box is connected to the heat dissipation mechanism through a third connecting pipe. The impeller is rotatably installed in the mixing box and arranged opposite to the third connecting pipe. The stirring blades include multiple groups, each of which is rotatably installed in the mixing box and linked to the impeller.

[0019] On the basis of the above technical solutions for the mixing device, in order to ensure that the impeller can drive the stirring blade to operate stably, the following technical solutions are also provided.

[0020] A first bevel gear is fixedly connected to the impeller axis, a second bevel gear is rotatably installed in the mixing box and is meshed with the first bevel gear, a transmission sprocket is fixedly connected to the axle center of the stirring blade and the axle center of the second bevel gear, and each set of transmission sprockets realizes chain transmission through a chain.

[0021] In some implementations, in order to ensure that the heat dissipation mechanism can effectively dissipate heat from the printing roller in the printing press, so as to ensure that the printing roller continues to operate efficiently within a specific temperature range, the following technical solutions regarding the printing roller and the heat dissipation mechanism are provided.

[0022] The printing roller is rotatably mounted on the side wall of the protective outer cover, and both ends of the printing roller extend to the outside of the protective outer cover. A first annular groove is provided on the end walls at both ends of the printing roller, and the two groups of annular grooves are kept in communication through heat dissipation passages evenly arranged on the inner side of the printing roller.

[0023] The heat dissipation mechanism includes a sealing sleeve, an annular through-pipe, and a third air pump. The sealing sleeve includes two groups. The two groups of sealing sleeves are fixedly installed on the side wall of the protective outer cover and arranged on the periphery of the end of the printing roller. A second annular through-groove arranged opposite to the first annular through-groove is opened inside the sealing sleeve. The first annular through-groove and the second annular through-groove are combined to form an annular passage. The annular through-pipe is arranged on the outside of the sealing sleeve and is connected to the second annular through-groove. The third air pump is connected to the annular through-pipe on the outside of one group of the sealing sleeves through a fourth connecting pipe, and the annular passage on the outside of the other group of the sealing sleeves is connected to the mixing box through the third connecting pipe.

[0024] In some implementations, in order to ensure that the hot air mixed evenly in the mixing box can be effectively heated and applied by the heating device to heat the dryer, laminating machine, and binding machine, the following technical solutions for the heating device are provided.

[0025] The heating device includes a heating box, an electric heating wire, a fourth vacuum pump, and a heating plate circuit. The heating box is fixedly installed at the bottom of the protective outer cover, and the heating box is connected to the mixing box through a fifth connecting pipe. The electric heating wire is evenly arranged in the heating box. The heating plate circuit includes multiple groups, each group of heating plate circuits is fixedly installed in the protective outer cover and arranged above the third mounting frame. An air nozzle is provided on the lower surface of each group of heating plate circuits. The heating box is connected to each group of heating plate circuits through a sixth connecting pipe, and the fourth vacuum pump is installed on the sixth connecting pipe.

[0026] In some implementations, in order to ensure that the waste paper collecting device can output and collect the waste paper cut by the die-cutting machine, the following technical solution regarding the transmission mechanism is provided.

[0027] The transmission mechanism includes an active roller, a driven roller, a cleaning roller, a transmission belt, and a driving motor. The active roller, the driven roller, and the cleaning roller are all rotatably installed in the transmission channel, and the active roller and the cleaning roller are arranged at the downstream end of the transmission channel. The transmission belt is wound around the active roller and the driven roller and is in a taut state, and the outer side of the transmission belt is evenly fixed with material blocking strips, and the cleaning roller is evenly fixed with a cleaning brush in contact with the transmission belt. The rotating shaft of the driving motor is fixed to the axis of the active roller, and the same end of the active roller and the cleaning roller are fixed with transmission gears that mesh with each other.

[0028] The production method for realizing green and environmentally friendly printing of books and periodicals, based on the above-mentioned printing system for realizing green and environmentally friendly printing of books and periodicals, comprises the following steps:

[0029] S1: Load the paper to be printed into the paper feeder and start the printing system. The paper passes through the printing press, dryer, folding machine, binding machine, and die-cutting machine in sequence. After the processing is completed, the book is produced.

[0030] S2, after the heat dissipation mechanism uses natural air to dissipate heat from the printing roller of the printing press, the natural air with increased temperature enters the mixing device;

[0031] S3, the air supply device draws natural air to blow the scrap paper produced by the die-cutting machine into the conveying channel, and the scrap paper is discharged and collected by the conveying mechanism for secondary use;

[0032] S4, the natural air in step S3 further circulates outside the heat exchange channel, the exhaust hood extracts the high-temperature toxic gas and inputs it into the heat exchange channel. After sufficient heat exchange with the natural air outside, the toxic gas with lowered temperature is purified by the air purifier and discharged outside, and the natural air with increased temperature is input into the mixing device

[0033] S5, after the natural air input into the mixing device in steps S2 and S4 is fully mixed, it is input into the heating device, and the heating device further heats the mixed gas to provide heat to the dryer and the binding machine.

[0034] The beneficial effects of the present invention are as follows: the scrap paper generated during the cutting process of the die-cutting machine can be transported to the transmission channel through the high-speed air delivered by the air supply device, and collected by the transmission mechanism for secondary utilization, and the air further flows into the heat exchange space; the exhaust hood draws the toxic high-temperature gas generated by the dryer, laminating machine, and binding machine into the heat exchange channel, and the hood fully exchanges heat with the air in the heat exchange space and cools it down before being purified and discharged by the air purifier. The heated air enters the mixing device, and the heated air is fully mixed in the mixing device after the heat dissipation of the printing roller by the heat dissipation mechanism. The mixed air is further heated by the heat supply device and then heats the dryer, laminating machine, and binding machine. In the above production process, the generated waste paper can be secondary utilized, the generated waste heat can be fully utilized to heat related equipment, and the toxic gas can be effectively treated, so as to achieve the purpose of green and environmentally friendly printing of books and periodicals. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is the operation sequence diagram of each device involved in this application;

[0036] Figure 2 This is a schematic diagram of the appearance and structure of the components involved in this application;

[0037] Figure 3 This is a schematic diagram of the appearance structure of the components involved in this application from another perspective;

[0038] Figure 4 It is a schematic diagram of the structure of the protective cover after cutting;

[0039] Figure 5 For the Figure 4 Front view of

[0040] Figure 6 It is a schematic diagram of the structure of the internal components of the protective cover;

[0041] Figure 7 It is a schematic diagram of the structure of the waste paper collection device after cutting;

[0042] Figure 8 For the Figure 7 Structural diagram from another perspective;

[0043] Figure 9 Schematic diagram of the structure inside the mixing box;

[0044] Figure 10 It is a structural schematic diagram of the printing roller (after cutting) and the heat dissipation structure.

[0045] In the figure: 11 paper feeder, 12 printing machine, 121 printing roller, 122 first annular groove, 123 heat dissipation path, 13 drying machine, 14 laminating machine, 15 paper folding machine, 16 binding machine, 17 die cutting machine, 21 exhaust hood, 22 heat exchange channel, 221 heat exchange space, 222 heat exchange fins, 223 first connecting pipe, 224 second connecting pipe, 225 second air pump, 23 air purifier, 241 first air pump, 242 air supply duct, 251 sealing jacket, 252 annular groove, 253 third air pump, 254 second annular groove, 255 fourth connecting pipe, 261 mixing box, 262 impeller, 263 stirring blade, 264 third connecting pipe, 265 first bevel gear, 266 second bevel gear, 267 transmission sprocket, 268 mounting seat, 269 mounting shaft, 271 heating box, 272 electric heating wire, 273 fourth vacuum pump, 274 heating plate circuit, 275 fifth connecting pipe, 276 air nozzle, 277 sixth connecting pipe, 278 first flow valve, 281 seventh connecting pipe, 282 second flow valve, 31 transmission channel, 32 transmission mechanism, 321 active roller, 322 driven roller, 323 cleaning roller, 324 transmission belt, 325 driving motor, 326 material blocking bar, 327 cleaning brush, 328 transmission gear, 329 material blocking plate, 41 protective cover, 42 first mounting frame, 43 second mounting frame, 44 third mounting frame, 45 fourth mounting frame, 46 mounting bracket, 47 operation port, 48 sealing door. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0047] See also Figure 1-10, and combined with the following embodiments, the technical solution and operating principle of this application are explained.

[0048] Example 1

[0049] A printing system for achieving green and environmentally friendly printing of books and periodicals includes a paper feeder 11, a printing press 12, a dryer 13, a paper folding machine 15, a binder 16, and a die-cutting machine 17 connected in sequence, as well as an environmental adjustment device and a waste paper collection device. The environmental adjustment device is installed in conjunction with the printing press 12, the dryer 13, and the binder 16. The waste paper collection device is used to collect waste paper left over from cutting by the die-cutting machine 17, and the waste paper collection device is linked to the environmental adjustment device.

[0050] The environmental conditioning device includes an exhaust hood 21, a heat exchange channel 22, an air purifier 23, an air supply device, a heat dissipation mechanism, a mixing device, and a heating device. The exhaust hood 21 is arranged above the dryer 13 and the binder 16 and is connected to the upstream end of the heat exchange channel 22. The downstream end of the heat exchange channel 22 is connected to the air purifier 23. The air supply device is used to blow air into the die-cutting machine 17, and the air blown in by the air supply device passes through the heat exchange channel 22 for heat exchange and is input into the mixing device. The heat dissipation mechanism is installed on the printing roller 121 of the printing machine 12, and the heat dissipation mechanism, the heating device and the mixing device are connected. The heating device provides heat to the dryer 13 and the binder 16.

[0051] The waste paper collection device includes a transmission channel 31 and a transmission mechanism 32. The transmission channel 31 is arranged between the air supply device and the heat exchange channel 22 and is connected to the die-cutting machine 17. The transmission mechanism 32 is installed in the transmission channel 31. The transmission mechanism 32 is used to output and collect the waste paper corners along the transmission channel 31.

[0052] Among the components mentioned above, the paper feeder 11 is used to feed the printing paper into the printing press 12, and the printing content is printed on the printing paper by the printing press 12. The printing content is then fed into the dryer 13 to dry the ink, folded in sequence by the paper folding machine 15, bound into books by the binding machine 16, and finally cut by the die-cutting machine 17 according to the set size on all sides except the binding side to produce qualified book and periodical products.

[0053] According to the production requirements of books and periodicals, a laminating machine 14 can be installed between the dryer 13 and the paper folding machine 15. When the laminating machine 14 is installed, a heating device and an exhaust hood 21 are also installed on the laminating machine 14. Since the dryer 13, the binding machine 16, and the laminating machine 14 all need to heat the paper or required materials printed with the printing content, the corresponding materials are heated by the heating device to ensure the stable operation of each process.

[0054] Since the drying machine 13, the laminating machine 14, and the binding machine 16 may generate toxic gases during operation, an exhaust hood 21 is installed above the drying machine 13 to remove the toxic gases.

[0055] On the basis of the above operation process, the air supply device is used to extract natural air and blow it to the die-cutting machine 17. The scrap paper generated during the cutting process of the die-cutting machine 17 can enter the transmission channel 31 under the action of high-speed natural air, and be transmitted outward and collected through the transmission mechanism 32. The scrap paper output by the transmission mechanism 32 can be processed into printing paper for secondary use. The natural air input by the air supply device contacts the heat exchange channel 22 for heat exchange, reducing the temperature of the toxic gas in the heat exchange channel 22 while increasing the temperature of the natural air and inputting it into the mixing device. When the heat dissipation mechanism dissipates heat from the printing roller 121 in the printing machine 12, the increased air is also input into the mixing device. The mixing device mixes the hot air input therein and inputs it into the heating device. The heating device further heats the mixed gas and supplies heated air to the dryer 13, binder 16, and laminator 14 involved.

[0056] The toxic hot air enters the heat exchange channel 22 through the exhaust hood 21. During the flow in the heat exchange channel 22, it fully exchanges heat with the natural air input by the air supply device. The temperature of the toxic gas at the downstream end of the heat exchange channel 22 is reduced and it is input into the air purifier 23 for purification. After the purification is completed by the air purifier 23, it meets the emission standards and is discharged from the exhaust end of the air purifier 23.

[0057] Example 2

[0058] In order to ensure that the paper feeder 11, printing machine 12, dryer 13, paper folding machine 15, binding machine 16, and die-cutting machine 17 can be stably installed, while preventing the leakage of toxic gases generated during the production process, and ensuring that the environmental conditioning device can effectively dissipate heat from the printing machine 12 while collecting heat, the following technical solution is provided.

[0059] A protective outer cover 41 is also provided, in which a first mounting frame 42, a second mounting frame 43, a third mounting frame 44, and a fourth mounting frame 45 are fixedly connected in sequence. The paper feeder 11 is mounted on the first mounting frame 42, the printing machine 12 is mounted on the second mounting frame 43, the dryer 13, the paper folding machine 15, and the binding machine 16 are mounted on the third mounting frame 44, the die-cutting machine 17 is mounted on the fourth mounting frame 45, and the environmental adjustment device and the waste paper collection device are mounted on the protective outer cover 41.

[0060] In order to ensure the stable installation of the protective cover 41 in the production workshop and the stable installation of the supporting components of the equipment, a mounting bracket 46 installed on the horizontal ground is also provided. The protective cover 41 is fixedly mounted on the mounting bracket 46 and is effectively supported by the mounting bracket 46. At the same time, the mounting bracket 46 also supports the transmission channel 31.

[0061] The laminating machine 14 installed according to the book and periodical production requirements is also mounted on the third mounting frame 44 to achieve the corresponding production function.

[0062] The protective cover 41 maintains a sealing effect as a whole, which can effectively prevent the leakage of toxic gases during the printing and production process of books and periodicals, and at the same time prevent the leakage of hot air output by the heating device, thereby ensuring the heat demand of the dryer 13, the binding machine 16, and the laminating machine 14 during operation.

[0063] To facilitate maintenance, operation, and assembly of the equipment within the protective housing 41, multiple operating ports 47 are provided on the protective housing 41. Each operating port 47 is equipped with a sealed door 48. Opening the sealed door 48 facilitates operation, while closing the sealed door 48 ensures the overall sealing performance of the protective housing 41. To facilitate observation of the operating status of the equipment within the protective housing 41 and the status of book production, transparent glass windows can be installed on the protective housing 41 or the sealed doors 48.

[0064] Example 3

[0065] In order to ensure that the air supply device and the heat exchange channel 22 in the environmental conditioning device are stably installed in the protective outer cover 41, the following technical solutions for the air supply device and the heat exchange channel 22 are provided.

[0066] The air supply device includes a first air pump 241 and an air supply pipe 242. The first air pump 241 is fixedly installed on the outside of the protective outer cover 41. The two ends of the air supply pipe 242 are respectively connected to the first air pump 241 and the protective outer cover 41; and the air supply pipe 242 is arranged at the position of the fourth mounting bracket 45.

[0067] The first vacuum pump 241 is fixed to the mounting bracket 46 by bolts. When the first vacuum pump 241 is working, the natural air on the outside of the protective outer cover 41 is pressurized and input into the inside of the protective outer cover 41 along the air supply duct 242. During the high-speed air flow, the waste paper scraps cut by the die-cutting machine 17 can be blown into the transmission pipe. After interacting with the waste paper scraps, the flow rate is reduced, and the waste paper scraps pass through the outside of the heat exchange channel 22 at a lower flow rate, indirectly exchanging heat with the toxic hot air in the heat exchange channel 22.

[0068] The heat exchange channel 22 is fixedly installed at the bottom of the protective outer cover 41. A heat exchange space 221 is provided between the heat exchange channel 22 and the bottom wall of the protective outer cover 41, and the heat exchange space 221 is connected to the mixing device. The transmission channel 31 is arranged between the heat exchange space 221 and the air supply channel.

[0069] Natural air entering protective housing 41 blows the scraps of waste paper into transfer channel 31 and into heat exchange space 221. As shown in the accompanying drawings, the natural air flowing in heat exchange space 221 flows in the opposite direction of the toxic gases flowing in heat exchange channel 22, effectively improving heat exchange efficiency. The natural air in heat exchange space 221 fully exchanges heat with the toxic gases in heat exchange channel 22, increasing the temperature of the natural air while simultaneously decreasing the temperature of the toxic gases.

[0070] In order to further improve the heat exchange effect between the toxic gas and natural air in the heat exchange channel 22, the toxic gas extracted by the exhaust hood 21 can be input into the upstream end of the heat exchange channel 22, and the toxic gas output from the downstream end of the upstream channel can enter the air purifier 23 for purification. The following technical solution for the heat exchange channel 22 is further provided.

[0071] The heat exchange channel 22 is configured to be wavy, and a heat insulation layer is bonded to the upper surface of the heat exchange channel 22 . Heat exchange fins are evenly fixed to the lower surface of the heat exchange channel 22 , and the heat exchange fins are arranged in the heat exchange space 221 .

[0072] Setting the heat exchange channel 22 to a wave shape can extend the time that the toxic gas flows therein, and the heat exchange fins can effectively increase the contact area with the natural air in the heat exchange space 221, thereby effectively improving the heat exchange effect between the natural air and the toxic gas, and raising the temperature of the natural air as much as possible to reuse the heat.

[0073] The thermal insulation layer is bonded to the upper surface of the heat exchange channel 22, which can effectively prevent the heat in the toxic gas from dissipating along the upper surface, thereby affecting the heat exchange effect with natural air.

[0074] In order to prevent the installation of the heat exchange channel 22 from causing spatial interference to the devices on the third mounting rack 44 , the heat exchange channel 22 is installed at the bottom of the third mounting rack 44 .

[0075] The exhaust hood 21 includes multiple groups, each exhaust hood 21 is fixedly installed on the inner side of the top of the protective outer cover 41 and arranged above the third mounting bracket 44. Each group of exhaust hoods 21 is connected to the upstream end of the heat exchange channel 22 through the first connecting pipe 223. The air purifier 23 is fixedly installed on the outer side of the top of the protective outer cover 41, and the downstream end of the heat exchange channel 22 is connected to the air purifier 23 through the second connecting pipe 224, and the second exhaust pump 225 is installed on the second connecting pipe 224.

[0076] The second vacuum pump 225 is fixedly installed on the top of the protective outer cover 41. Under the action of the second vacuum pump 225, the toxic gas generated in the protective outer cover 41 (mainly generated by the operation of the dryer 13, the laminating machine 14, and the binding machine 16) is extracted by the vacuum hood 21 and input into the heat exchange channel 22 along the first connecting pipe 223. After heat exchange in the heat exchange channel 22, it is input into the air purifier 23 through the second connecting pipe 224 for purification and then discharged.

[0077] Example 4

[0078] In order to ensure that the mixing device can fully mix the hot air flowing out of the heat dissipation mechanism with the hot air heated in the heat exchange space 221 for further heating and application by the heating device, the following technical solution for the mixing device is provided.

[0079] The mixing device includes a mixing box 261, an impeller 262, and a stirring blade 263. The mixing box 261 is fixedly installed at the bottom of the protective outer cover 41 and is connected to the heat exchange space 221. The mixing box 261 is connected to the heat dissipation mechanism through a third connecting pipe 264. The impeller 262 is rotatably installed in the mixing box 261 and arranged opposite to the third connecting pipe. The stirring blade 263 includes multiple groups, and each stirring blade 263 is rotatably installed in the mixing box 261 and is linked to the impeller 262.

[0080] The hot air after heat exchange in the heat exchange space 221 is input into the heat exchange box. The heat collected by the heat dissipation mechanism after the heat dissipation treatment of the printing roller 121 is input into the mixing box 261 along the third connecting pipe 264 and acts on the impeller 262 to drive the impeller 262 to rotate stably. When the impeller 262 rotates, it drives the stirring blades 263 to rotate. The rotating impeller 262 and stirring blades 263 can fully mix the two gases input into the mixing box 261 to make the gas temperature at each location in the mixing box 261 the same, so that the heating device can heat and apply it uniformly.

[0081] In order to ensure that the impeller 262 can drive the stirring blade 263 to operate stably, the following technical solution is also provided.

[0082] A first bevel gear 265 is fixedly connected to the axis of the impeller 262, and a second bevel gear 266 is rotatably installed in the mixing box 261 to maintain meshing with the first bevel gear 265. A transmission sprocket 267 is fixedly connected to the axis of the stirring blade 263 and the axis of the second bevel gear 266. Each group of transmission sprockets 267 realizes chain transmission through a chain.

[0083] When the impeller 262 is acted upon by the hot gas blown in by the three-way connecting pipe and rotates, it drives the first bevel gear 265 to rotate, and then drives the second bevel gear 266 and the transmission sprocket 267 fixed to the second bevel gear 266 to rotate, and then drives the remaining transmission sprockets 267 and the fixed stirring blades 263 to rotate through the combination of the transmission sprocket 267 and the chain, thereby achieving the effect of the impeller 262 driving the stirring blades 263 to rotate, thereby ensuring that the gas in the mixing box 261 is evenly mixed.

[0084] In order to ensure that the above-mentioned components are stably installed in the mixing box 261, a mounting seat 268 and a mounting shaft 269 are provided in the mixing box 261. The mounting seat 268 is fixedly connected to the mixing box 261, and the mounting shaft 269 is rotatably installed in the mixing box 261. The impeller 262 and the first bevel gear 265 fixed thereto are rotatably installed on the mounting seat 268, and the second bevel gear 266, the stirring blade 263 and each transmission sprocket 267 are fixedly connected to the mounting shaft 269 at the corresponding position.

[0085] Example 5

[0086] In order to ensure that the heat dissipation mechanism can effectively dissipate heat from the printing roller 121 in the printing machine 12, so as to ensure that the printing roller 121 continues to operate efficiently within a specific temperature range, the following technical solutions regarding the printing roller 121 and the heat dissipation mechanism are provided.

[0087] The printing roller 121 is rotatably mounted on the side wall of the protective outer cover 41, and both ends of the printing roller 121 extend to the outside of the protective outer cover 41. A first annular groove 122 is opened on the end wall of both ends of the printing roller 121, and the two groups of annular grooves are kept in communication through a heat dissipation passage 123 evenly arranged on the inner side of the printing roller 121.

[0088] The heat dissipation mechanism includes a sealing sleeve 251, an annular through-pipe 252, and a third air pump 253. The sealing sleeve 251 includes two groups. The two groups of sealing sleeves 251 are fixedly installed on the side wall of the protective outer cover 41 and arranged on the periphery of the end of the printing roller 121. A second annular through-groove 254 arranged opposite to the first annular through-groove 122 is opened inside the sealing sleeve 251. The first annular through-groove 122 and the second annular through-groove 254 are combined to form an annular passage. The annular through-pipe 252 is arranged on the outside of the sealing sleeve 251 and is connected to the second annular through-groove 254. The third air pump 253 is connected to the annular through-pipe 252 on the outside of one group of the sealing sleeves 251 through the fourth connecting pipe 255, and the annular passage on the outside of the other group of the sealing sleeves 251 is connected to the mixing box 261 through the third connecting pipe 264.

[0089] When the printing roller 121 prints on the substrate paper continuously and at high speed, the temperature of the printing roller 121 and the substrate paper continuously interacts with each other, causing the temperature of the printing roller 121 to rise above a set threshold, thereby affecting the adhesion of the ink to the substrate paper.

[0090] The third air pump 253 is fixedly mounted on the mounting bracket 46. When the third air pump 253 is working, the natural air in the external environment is input into the corresponding annular pipe 252 along the fourth connecting pipe 255, and then input into the annular passage on the corresponding side, and flows through the entire section of the printing roller 121 along the heat dissipation passage 123 to take away the heat on the printing roller 121, thereby achieving the purpose of effectively dissipating heat from the printing roller 121. The temperature of the natural air after the heat dissipation treatment of the printing roller 121 is increased and flows into the annular passage of another section, and is input into the mixing box 261 along the third connecting pipe 264. In the process of driving the impeller 262 and the stirring blade 263 to rotate, the natural air is fully mixed with the other natural air input into the mixing box 261 after heat exchange with the toxic gas.

[0091] In the protective outer cover 41, since the dryer 13, the laminator 14, and the binder 16 need to be supplied with heat when they are working, and the temperature of the printing machine 12 needs to be limited during operation, in order to avoid the interference of the dryer 13, the laminator 14, and the binder 16 on the printing machine 12, an insulation board can be installed between the second mounting bracket 43 and the third mounting bracket 44. At the same time, the normal transportation of paper can be ensured to reduce the interference of the dryer 13, the laminator 14, and the binder 16 on the printing machine 12.

[0092] Example 6

[0093] In order to ensure that the hot air mixed evenly in the mixing box 261 can be effectively heated and used by the heating device to heat the dryer 13, the laminating machine 14, and the binding machine 16, the following technical solution for the heating device is provided.

[0094] The heating device includes a heating box 271, an electric heating wire 272, a fourth air pump 273, and a heating plate path 274. The heating box 271 is fixedly installed at the bottom of the protective outer cover 41, and the heating box 271 is connected to the mixing box 261 through a fifth connecting pipe 275. The electric heating wire 272 is evenly arranged in the heating box 271. The heating plate path 274 includes multiple groups. Each group of heating plate paths 274 is fixedly installed in the protective outer cover 41 and arranged above the third mounting frame 44. An air nozzle 276 is provided on the lower surface of each group of heating plate paths 274. The heating box 271 is connected to each group of heating plate paths 274 through a sixth connecting pipe 277. The fourth air pump 273 is installed on the sixth connecting pipe 277.

[0095] The fourth vacuum pump 273 is fixedly mounted on the mounting bracket 46. The mixed air in the mixing box 261 is fed into the heating box 271 through the fifth connecting pipe 275. When the electric heating wire 272 is energized, the air therein is further heated. The hot air is then fed into the air supply plate along the sixth connecting pipe 277 by the fourth vacuum pump 273. The hot air is then ejected from the nozzles to provide heat to the dryer 13, laminator 14, and binder 16. When providing heat to the dryer 13, the hot air is directly sprayed onto the printing paper to dry the ink thereon. When providing heat to the laminator 14, the laminating liquid is heated and sprayed onto the printing paper. The residual heat on the printing paper is used to quickly evaporate the water in the laminating liquid, thus laminating the printing paper. When providing heat to the binder 16, the heat is provided to melt the required latex, and the molten latex is used to bind the printing paper into books.

[0096] Since the sixth connecting pipe 277 needs to supply hot air to multiple groups of heating plate circuits 274, the sixth connecting pipe 277 includes a main pipe and branch pipes. The fourth vacuum pump 273 is installed on the main pipe. One end of each branch pipe is connected to the branch pipe, and the other end is connected to the corresponding heating plate circuit 274.

[0097] It should be further explained that the temperature of the hot air after being heated by the heating box 271 and the electric heating wire 272 is relatively high, and the hot air temperature required by the dryer 13, the laminating machine 14, and the binding machine 16 is not uniform, so a temperature control device is also provided, and the temperature control device includes a seventh connecting pipe 281, and the seventh connecting pipe 281 also includes a main pipe and multiple branches. The main pipe is connected to the air supply pipe 242 on the first exhaust pump 241, and one end of each branch pipe is connected to the main pipe, and the other end is connected to the corresponding sixth connecting pipe 2 The first and second flow valves 278 and 282 are fixedly connected to the branches of the sixth and seventh connecting pipes 277 and 281, respectively. When the first air pump 241 is in operation, it can draw cold air from the outside into the seventh connecting pipe 281. At the branch of the sixth connecting pipe 277, hot air is mixed. By adjusting the first and second flow valves 278 and 282 at the corresponding positions, the temperature of the hot air input to the air supply plate circuit can be adjusted, and the flow rate of the input hot air can also be adjusted. The first and second flow valves 278 and 282 can be electromagnetic flow valves to facilitate control of their input flow rates.

[0098] It should also be noted that temperature sensors are installed in the mixing box 261 and the heating box 271 to monitor the air temperature in the mixing box 261 and the heating box 271 in real time, so as to facilitate the precise temperature adjustment by the temperature control device.

[0099] To ensure that each heating plate circuit 274 can output clean high-temperature air, air filters are installed at the air inlet ends of the first air pump 241 and the third air pump 253 to filter impurities carried in the air, thereby ensuring the cleanliness of the high-temperature hot air input into the protective outer cover 41.

[0100] Example 7

[0101] In order to ensure that the waste paper collecting device can output and collect the waste paper cut by the die-cutting machine 17, the following technical solution regarding the transmission mechanism 32 is provided.

[0102] The transmission mechanism 32 includes an active roller 321, a driven roller 322, a cleaning roller 323, a transmission belt 324, and a drive motor 325. The active roller 321, the driven roller 322, and the cleaning roller 323 are all rotatably installed in the transmission channel 31, and the active roller 321 and the cleaning roller 323 are arranged at the downstream end of the transmission channel 31. The transmission belt 324 is wound around the active roller 321 and the driven roller 322 and is in a taut state. The outer side surface of the transmission belt 324 is evenly fixed with a material blocking strip 326, and the cleaning roller 323 is evenly fixed with a cleaning brush 327 that contacts the transmission belt 324. The rotating shaft of the drive motor 325 is fixedly connected to the axis of the active roller 321, and the same end of the active roller 321 and the cleaning roller 323 is fixedly connected with a transmission gear 328 that meshes with each other.

[0103] The driving motor 325 is fixedly mounted on the mounting bracket 46. When the driving motor 325 drives the active roller 321 to rotate, it cooperates with the driven roller 322 to drive the conveyor belt 324 to operate stably. The waste paper scraps that fall into the conveying channel 31 eventually fall on the conveyor belt 324. When the conveyor belt 324 operates, it can convey the waste paper scraps to the downstream side. When the active roller 321 rotates, it drives the cleaning roller 323 and the cleaning brush 327 thereon to rotate in the opposite direction, thereby cleaning the waste paper scraps on the cleaning roller 323 and outputting and collecting them from the downstream end of the conveying channel 31.

[0104] After subsequent processing, the collected scraps of waste paper are separated from the ink and film attached to them, and the waste paper can be reused as raw material for paper production.

[0105] In order to prevent scrap paper from entering the heat exchange space 221 and affecting the normal operation of the mixing device and the heating device, a baffle plate 329 is fixed to the outside of the downstream end of the heat exchange channel 22 and the upstream end of the heat exchange space 221. A retention hole is opened at the relative position of the baffle plate 329 and the heat exchange space 221. The retention hole can ensure the normal passage of air and block the scrap paper, so that all the scrap paper falls into the transmission channel 31.

[0106] Example 8

[0107] The production method for realizing green and environmentally friendly printing of books and periodicals, based on the above-mentioned printing system for realizing green and environmentally friendly printing of books and periodicals, comprises the following steps:

[0108] S1, the printing paper to be printed is loaded into the paper feeder 11, and the printing system is started. The printing paper passes through the printing machine 12, the drying machine 13, the paper folding machine 15, the binding machine 16, and the die-cutting machine 17 in sequence. After the processing is completed, the book is produced;

[0109] S2, after the heat dissipation mechanism uses natural air to dissipate heat from the printing roller 121 of the printing press 12, the natural air with increased temperature enters the mixing device;

[0110] S3, the air supply device draws natural air to blow the scrap paper produced by the die-cutting machine 17 into the conveying channel 31, and the scrap paper is output and collected by the conveying mechanism 32 for secondary use;

[0111] S4, the natural air in step S3 further circulates outside the heat exchange channel 22, the exhaust hood 21 extracts the high-temperature toxic gas and inputs it into the heat exchange channel 22, and after sufficient heat exchange with the natural air outside, the toxic gas with lowered temperature is purified by the air purifier 23 and discharged, and the natural air with increased temperature is input into the mixing device

[0112] S5 , after the natural air input into the mixing device in steps S2 and S4 is fully mixed, it is input into the heating device, and the heating device further heats the mixed gas to provide heat to the drying machine 13 and the binding machine 16 .

[0113] In the process of producing books and periodicals, they pass through the paper feeder 11, printing machine 12, drying machine 13, (laminating machine 14,) paper folding machine 15, binding machine 16, and die-cutting machine 17 in sequence, and finally generate qualified books and periodicals.

[0114] The scrap paper generated during the cutting process of the die-cutting machine 17 can be transported to the transmission channel 31 through the high-speed air transported by the air supply device, and output and collected by the transmission mechanism 32 for secondary utilization, and the air further flows into the heat exchange space 221; the exhaust hood 21 draws the toxic high-temperature gas generated by the dryer 13, the laminating machine 14, and the binding machine 16 into the heat exchange channel 22, and after sufficient heat exchange and cooling with the air in the heat exchange space 221, it is purified and discharged by the air purifier 23, and the heated air enters the mixing device, and is fully mixed with the air heated by the heat dissipation mechanism on the printing roller 121 in the mixing device, and the mixed air is further heated by the heating device to provide heat to the dryer 13, the laminating machine 14, and the binding machine 16.

[0115] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0116] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A printing system for realizing green and environmentally friendly printing of books and periodicals, comprising a paper feeder (11), a printing press (12), a drying machine (13), a paper folding machine (15), a binding machine (16), and a die-cutting machine (17) connected in sequence, characterized in that: It also includes an environmental adjustment device and a waste paper collection device, wherein the environmental adjustment device is installed in conjunction with the printing machine (12), the drying machine (13), and the binding machine (16); the waste paper collection device is used to collect waste paper left by the die-cutting machine (17), and the waste paper collection device is linked to the environmental adjustment device; The environmental conditioning device comprises an exhaust hood (21), a heat exchange channel (22), an air purifier (23), an air supply device, a heat dissipation mechanism, a mixing device, and a heating device. The exhaust hood (21) is arranged above the dryer (13) and the binding machine (16) and is connected to the upstream end of the heat exchange channel (22). The downstream end of the heat exchange channel (22) is connected to the air purifier (23). The air supply device is used to blow air into the die-cutting machine (17), and the air blown in by the air supply device is input into the mixing device through the heat exchange channel (22) for heat exchange. The heat dissipation mechanism is mounted on the printing roller (121) of the printing machine (12), and the heat dissipation mechanism, the heating device and the mixing device are connected. The heating device provides heat to the dryer (13) and the binding machine (16). The waste paper collecting device comprises a transmission channel (31) and a transmission mechanism (32). The transmission channel (31) is arranged between the air supply device and the heat exchange channel (22) and is connected to the die-cutting machine (17). The transmission mechanism (32) is installed in the transmission channel (31). The transmission mechanism (32) is used to output and collect the waste paper along the transmission channel (31). A protective outer cover (41) is also provided, and the environment regulating device and the waste paper collecting device are matched and installed on the protective outer cover (41); The heat exchange channel (22) is fixedly mounted on the bottom of the protective cover (41), a heat exchange space (221) is provided between the heat exchange channel (22) and the bottom wall of the protective cover (41), and the heat exchange space (221) is communicated with the mixing device, and the transmission channel (31) is arranged between the heat exchange space (221) and the air supply channel; The mixing device includes a mixing box (261), an impeller (262), and stirring blades (263). The mixing box (261) is fixedly mounted on the bottom of the protective cover (41) and is connected to the heat exchange space (221). The mixing box (261) is connected to the heat dissipation mechanism via a third connecting pipe (264). The impeller (262) is rotatably mounted in the mixing box (261) and is arranged opposite to the third connecting pipe (264). The stirring blades (263) include multiple groups. Each stirring blade (263) is rotatably mounted in the mixing box (261) and is linked to the impeller (262). A first bevel gear (265) is fixedly connected to the axis of the impeller (262); a second bevel gear (266) is rotatably mounted in the mixing box (261) and is in meshing engagement with the first bevel gear (265); a transmission sprocket (267) is fixedly connected to the axis of the stirring blade (263) and the axis of the second bevel gear (266); and each set of transmission sprockets (267) is chain-driven by a chain.

2. The printing system for realizing green and environmentally friendly printing of books and periodicals according to claim 1, characterized in that: A first mounting frame (42), a second mounting frame (43), a third mounting frame (44), and a fourth mounting frame (45) are fixedly connected to the protective outer cover (41) in sequence. The paper feeder (11) is mounted on the first mounting frame (42), the printing machine (12) is mounted on the second mounting frame (43), the drying machine (13), the paper folding machine (15), and the binding machine (16) are mounted on the third mounting frame (44), and the die-cutting machine (17) is mounted on the fourth mounting frame (45).

3. The printing system for realizing green and environmentally friendly printing of books and periodicals according to claim 2, characterized in that: The air supply device comprises a first air pump (241) and an air supply duct (242); the first air pump (241) is fixedly mounted on the outside of the protective outer cover (41); two ends of the air supply duct (242) are respectively connected to the first air pump (241) and the protective outer cover (41); and the air supply duct (242) is arranged at the position of the fourth mounting frame (45).

4. The printing system for realizing green and environmentally friendly printing of books and periodicals according to claim 3, characterized in that: The heat exchange channel (22) is configured to be wavy, and a heat-insulating layer is bonded to the upper surface of the heat exchange channel (22), and heat exchange fins are evenly fixed to the lower surface of the heat exchange channel (22), and the heat exchange fins are arranged in the heat exchange space (221); the exhaust hood (21) includes multiple groups, each exhaust hood (21) is fixedly mounted on the inner side of the top of the protective outer cover (41) and arranged above the third mounting frame (44), each group of exhaust hoods (21) is connected to the upstream end of the heat exchange channel (22) through a first connecting pipe (223), the air purifier (23) is fixedly mounted on the outer side of the top of the protective outer cover (41), and the downstream end of the heat exchange channel (22) is connected to the air purifier (23) through a second connecting pipe (224), and a second exhaust pump (225) is matched with the second connecting pipe (224).

5. The printing system for realizing green and environmentally friendly printing of books and periodicals according to claim 4, characterized in that: The printing roller (121) is rotatably mounted on the side wall of the protective outer cover (41), and both ends of the printing roller (121) extend outward from the protective outer cover (41). A first annular through groove (122) is provided on both end walls of the printing roller (121), and the two groups of annular through grooves are kept in communication through a heat dissipation passage (123) uniformly arranged on the inner side of the printing roller (121); the heat dissipation mechanism includes a sealing jacket (251), an annular through pipe (252), and a third air pump (253). The sealing jacket (251) includes two groups, and the two groups of sealing jackets (251) are fixedly mounted on the side wall of the protective outer cover (41) and arranged on the outer periphery of the end of the printing roller (121). A second annular groove (254) is provided inside the sealing sleeve (251) and is arranged opposite to the first annular groove (122). The first annular groove (122) and the second annular groove (254) are combined to form an annular passage. The annular tube (252) is arranged on the outside of the sealing sleeve (251) and is connected to the second annular groove (254). The third air pump (253) is connected to the annular tube (252) on the outside of one group of the sealing sleeves (251) through the fourth connecting tube (255). The annular passage on the outside of the other group of the sealing sleeves (251) is connected to the mixing box (261) through the third connecting tube (264).

6. The printing system for realizing green and environmentally friendly printing of books and periodicals according to claim 4, characterized in that: The heating device includes a heating box (271), an electric heating wire (272), a fourth air pump (273), and a heating plate circuit (274). The heating box (271) is fixedly installed at the bottom of the protective outer cover (41), and the heating box (271) is connected to the mixing box (261) through a fifth connecting pipe (275). The electric heating wire (272) is evenly arranged in the heating box (271). The heating plate circuit (274) includes multiple groups. Each group of heating plate circuits (274) is fixedly installed in the protective outer cover (41) and arranged above the third mounting frame (44). An air nozzle (276) is provided on the lower surface of each group of heating plate circuits (274). The heating box (271) is connected to each group of heating plate circuits (274) through a sixth connecting pipe (277). The fourth air pump (273) is matched with the sixth connecting pipe (277).

7. The printing system for realizing green and environmentally friendly printing of books and periodicals according to claim 2, characterized in that: The transmission mechanism (32) includes an active roller (321), a driven roller (322), a cleaning roller (323), a transmission belt (324), and a driving motor (325). The active roller (321), the driven roller (322), and the cleaning roller (323) are all rotatably installed in the transmission channel (31), and the active roller (321) and the cleaning roller (323) are arranged at the downstream end of the transmission channel (31). The transmission belt (324) is wound around the active roller (321) and the driven roller (322) and is in a taut state. The outer side surface of the transmission belt (324) is evenly fixed with a material blocking strip (326). The cleaning roller (323) is evenly fixed with a cleaning brush (327) in contact with the transmission belt (324). The rotating shaft of the driving motor (325) is fixed with the axis of the active roller (321). The active roller (321) and the cleaning roller (323) are fixed with a transmission gear (328) that meshes with each other at the same end.

8. A production method for realizing green and environmentally friendly printing of books and periodicals, characterized in that: The printing system for realizing green and environmentally friendly printing of books and periodicals according to any one of claims 1 to 7 comprises the following steps: S1, the printing paper to be printed is loaded into the paper feeder (11), the printing system is started, and the printing paper passes through the printing machine (12), the drying machine (13), the paper folding machine (15), the binding machine (16), and the die-cutting machine (17) in sequence, and after the processing is completed, a book is produced; S2, after the heat dissipation mechanism uses natural air to dissipate heat from the printing roller (121) of the printing machine (12), the natural air with increased temperature enters the mixing device; S3, the air supply device draws natural air to blow the scrap paper produced by the die-cutting machine (17) into the transmission channel (31), and the scrap paper is output and collected by the transmission mechanism (32) for secondary use; S4, the natural air in step S3 further circulates outside the heat exchange channel (22), the exhaust hood (21) extracts the high-temperature toxic gas and inputs it into the heat exchange channel (22), and after sufficient heat exchange with the natural air outside, the toxic gas with a lowered temperature is purified by the air purifier (23) and discharged, and the natural air with a higher temperature is input into the mixing device; S5, after the natural air input into the mixing device in steps S2 and S4 is fully mixed, it is input into the heating device, and the heating device further heats the mixed gas to provide heat to the drying machine (13) and the binding machine (16).

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