Pneumatic drying and cleaning post-press energy-saving finishing device
Through the combination of vortex tube and negative pressure air pump, the drying and cleaning functions are integrated, which solves the problems of low cooling efficiency and incomplete cleaning during post-printing finishing of printing equipment, and realizes efficient and energy-saving printing finishing, adapting to the needs of multiple working conditions.
Patent Information
- Application Number
- CN202421738927.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-22
AI Technical Summary
During the post-printing and finishing process, existing printing equipment has problems such as low cooling efficiency, high energy consumption and incomplete cleaning. Commonly used devices require multiple single-function equipment, which is difficult to meet the needs of multiple working conditions.
The vortex tube technology is used to combine negative pressure air pumps to integrate drying and cleaning functions. Through airflow sorting at multiple temperatures and flow rates, the cooling, heating, drying, fixing and cleaning of printed materials is achieved. The hot and cold air flow generated by the vortex tube is used for non-contact operation, and the collection of impurities with negative pressure purge is combined.
It realizes efficient drying and cleaning of printed materials, reduces energy consumption, avoids manual intervention, has a compact structure, stable and reliable operation, meets environmental protection requirements, and reduces maintenance costs.
Smart Images
Figure CN223058587U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of printing machinery or auxiliary equipment attached to printing presses in IPC classification B41F, and particularly relates to an innovative improvement technology for the structure of an auxiliary device suitable for cleaning and tidying up local positions or surfaces of printed products or printing equipment after printing operations. Background Art
[0002] With the continuous development of the printing industry and the increasing environmental protection requirements, correspondingly, the tidying up of local positions or surfaces of printed products or printing equipment after printing operations has also become a standard requirement.
[0003] During the printing process, processes such as printing, sizing, heat treatment, and die-cutting still require after-treatment in subsequent processes. For example, the surface of printed products may be contaminated with pollutants such as dust and ink residues, and post-printing cleaning is required. Another example is that UV offset printing is a type of printing technology. Its main feature is to utilize the property of UV glue solidifying when heated, and heating needs to be carried out in a timely manner after printing. Therefore, the printing rollers near the heat source are also affected by high temperatures. If the printing rollers are not cooled, the UV glue will become viscous or even solidify prematurely on the printing rollers, causing printing machine failures. The mainstream current method for cooling printing rollers is water cooling, which has extremely high requirements for the structural tightness, and there has always been a relatively high risk of coolant leakage contaminating the equipment and products. Conventional air cooling not only has difficulty meeting the cooling requirements of printing rollers, but also consumes too much energy.
[0004] Heating and drying, ultraviolet curing, and annealing during printing are common processes. Heating and drying is the most common method to achieve drying of printed products in experiments and production. Using equipment such as heating tables and ovens, heat treatment of printed products is carried out at a specific temperature for an appropriate period of time. An increase in temperature accelerates the polymerization of oil molecules, thereby accelerating the drying speed of the ink. The ultraviolet curing method can quickly cure and form printed products without heating, which is widely used and has high production efficiency. However, it requires that the ink used must contain ultraviolet-sensitive crosslinking material components, which may affect the electrical properties of the ink and have certain requirements for the storage of the ink. Annealing treatment is mainly applied to organic and polymer materials, aiming to eliminate internal stress of the materials and improve the microstructure, etc. After drying, cleaning is equally important to ensure the cleanliness and residue-free surface of the printed matter. Dry cleaning refers to a cleaning method that does not involve water or organic solvents and mainly uses the principle of physical vibration to remove or reduce deposits on the paper surface. It includes operations such as picking, scraping, grinding, rubbing, dipping, sucking, blowing, and sweeping. Common tools include: Among them, the vacuum cleaner should have the functions of adjustable suction, with a HEPA filter and a dust suction head accessory to prevent the spread of mold and damage to documents. Soft brush: Such as a wool brush, with a soft texture and will not wear the fiber on the paper surface, suitable for cleaning most paper documents. The dust removal cloth is a cloth treated specially, such as an ultra-fine fiber dust-free wiping cloth, which has the characteristics of strong dirt absorption ability, wear resistance, softness, anti-static, and non-falling fibers, and is an efficient cleaning material. Before cleaning, the feasibility and safety of the cleaning method should be evaluated, and the cleaning scope and degree should be clarified. Conduct a local test at an inconspicuous location to verify the effectiveness and safety of the cleaning method. When cleaning, it should be carried out in a certain order, such as cleaning the outer cover first and then the inner pages; cleaning the head and foot of the book first and then the fore-edge, etc. Operators should wear protective equipment such as gloves and masks to prevent mold spores and fine particles in the dust from causing harm to the skin and respiratory tract. It should be noted that excessive cleaning should be avoided. One should not blindly pursue visual cleanliness and beauty and over-clean, so as not to damage the paper fibers. It is necessary to select a suitable cleaning method, and choose a suitable cleaning method according to different types of stains and paper conditions. It is necessary to regularly replace cleaning tools such as dust removal cloths and brushes to ensure the cleaning effect and prevent the spread of mold.
[0005] For the applicable technical devices under the above working conditions, according to the existing technology and common knowledge, a variety of single-function devices need to be set up one by one to solve the above problems respectively.
[0006] Drying and cleaning in post-press finishing is a crucial step, which directly affects the final quality and storage life of printed products. However, according to the current industrial situation and requirements, it is necessary to set up devices that are generally applicable to multiple functions and multiple working conditions as much as possible to solve the above problems, and the corresponding improved technologies have not been publicly reported. Utility Model Content
[0007] The technical problem to be solved by the present utility model is to address the above-mentioned existing problems and technical requirements. The present utility model provides a post-printing energy-saving finishing device for air-flow drying and cleaning. Through reasonable drying and cleaning methods, it integrates the two functions of drying and cleaning into one, can meet various requirements in the post-printing finishing process, and can ensure the quality and shelf life of printed products.
[0008] To this end, the present utility model includes: a first box body, a second box body, an air compressor, a vortex tube, and a negative pressure air pump; the first box body and the second box body are arranged opposite to each other in the upper and lower positions, and the gap between the first box body and the second box body forms a finishing chamber; the air compressor and the vortex tube are installed in the first box body, and the air compressor is connected to the vortex tube through a compressed air pipe; the negative pressure air pump is installed in the second box body. The vortex tube leads out a cold source air flow main pipe, and the vortex tube leads out a heat source air flow pipe; the cold source air flow main pipe further leads out a first cooling air branch pipe and a second cooling air branch pipe.
[0009] Among them, the compressed air pipe further leads out a normal temperature compressed air source branch pipe; the normal temperature compressed air source branch pipe is connected to the bottom of the second box body through a compressed air bottom blowing valve; at the same time, the normal temperature compressed air source branch pipe is connected to the first cooling air branch pipe and the heat source air flow pipe through a compressed air mixing valve and jointly accesses a mixing and pressure regulating box, and the mixing and pressure regulating box leads out a mixing and pressure regulating air flow nozzle.
[0010] A cold source air valve is installed on the cold source air flow main pipe, and a heat source air valve is installed on the heat source air flow pipe.
[0011] A first cooling air valve and a second cooling air valve are respectively installed on the first cooling air branch pipe and the second cooling air branch pipe.
[0012] The tail end of the second cooling air branch pipe is connected to a direct cooling air flow nozzle.
[0013] The negative pressure air pump is installed at the bottom of the second box body; the negative pressure air pump leads out a negative pressure suction cup.
[0014] Furthermore, to achieve the above object, the present utility model is configured as:
[0015] In particular, an air cooling exhaust pipe is installed on the cold source air flow main pipe, and a hot air exhaust pipe is installed on the heat source air flow pipe.
[0016] In particular, a temperature control device is installed in the mixing and pressure regulating box.
[0017] In particular, a control device is installed in the first box body or the second box body, and the control device is connected to the air compressor and the negative pressure air pump.
[0018] In particular, a bottom impurity discharge port is installed at the lowest position of the bottom of the second box body.
[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows: The device combines vortex tube technology and energy-saving concept, optimally configures the air flow sorting mode, completely avoids manual intervention in non-contact operation, and completely replaces the use of common tools. It has rich cleaning functions, is suitable for various working conditions and post-printing finishing requirements, has a compact and reasonable structural design, operates energy-efficiently and cleanly, has an economical and efficient maintenance cost, and the device runs stably and reliably. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The following drawings are schematic and should not be construed as imposing any limitation on the present utility model. By referring to the following drawings, it helps readers understand the embodiments of the present utility model and further understand the advantages and technical features of the present utility model.
[0021] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model.
[0022] The reference numerals include:
[0023] 1 - First box body, 2 - Second box body, 3 - Air compressor, 4 - Vortex tube, 5 - Negative pressure air pump, 6 - Control device, 7 - Mixing and pressure-regulating box, 8 - Negative pressure suction cup, 9 - Compressed air pipe, 10 - Cold source air flow main pipe, 11 - Heat source air flow pipe, 12 - Heat source air valve, 13 - Sorting cabin, 14 - Cold source air valve, 15 - First cooling air branch pipe, 16 - First cooling air valve, 17 - Second cooling air branch pipe, 18 - Second cooling air valve, 19 - Direct cooling air flow nozzle, 20 - Mixing and pressure-regulating air flow nozzle, 21 - Normal temperature compressed air source branch pipe, 22 - Compressed air source distribution pipe, 23 - Compressed air bottom blowing pipe, 24 - Compressed air mixing valve, 25 - Compressed air bottom blowing valve, 26 - Bottom impurity discharge port, 27 - Hot air exhaust pipe, 28 - Cold air exhaust pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0024] It should be noted that:
[0025] The terms "comprising", "having" and any variations thereof are intended to cover other possible alternatives not listed under the same logic. In the description of the present utility model, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present utility model is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance. In addition, terms such as "horizontal", "vertical", "hanging", etc. do not mean that the component is required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0026] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0027] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0028] Unless otherwise limited, all the technologies and scientific terms used herein have the same meanings as those commonly understood by those of ordinary skill in the art to which the present utility model belongs. When there is a contradiction, the definition in this specification shall prevail.
[0029] Drying and cleaning in post-print finishing is a complex and important process. In the prior art, it requires operators to have rich experience and professional knowledge. Even so, obviously, it meets the requirements of technological progress and industrial reality to greatly reduce personnel participation in an energy-saving and environmentally friendly manner and efficiently complete these tasks.
[0030] A vortex tube is a device that uses compressed air to generate two streams of cold and hot air. Its working principle is based on the law of conservation of energy and thermodynamics. Through the expansion and energy conversion of compressed air, cold and heat separation is achieved. Inside the vortex tube, the compressed air is rotated at high speed to form a vortex. The temperature at the center of the vortex decreases to form cold air, while the temperature at the periphery of the vortex increases due to the expansion of the compressed air to form hot air. This characteristic of cold and heat separation makes the vortex tube widely used in many fields. The present utility model finds that the application of the vortex tube in the drying and cleaning processes of post-press finishing of printing will have good expected technical innovation effects.
[0031] Post-press finishing of printing is an indispensable part of the printing process. It involves reprocessing printed products to obtain better visual effects and physical properties. Post-press finishing can be roughly divided into multiple aspects such as surface finishing, shaping, bookbinding, and other processes.
[0032] The principle of the present utility model is that through the setting of positive-pressure post-press blowing air flow finishing with multiple temperatures / flow rates based on an air compressor - vortex tube, combined with negative-pressure purging impurity collection and cleaning based on a negative-pressure air pump - compressed air bottom blowing tube, the local workstations of the printing equipment and the printed products placed in the finishing chamber 13 therein undergo a similar preset air flow bath to complete complex finishing such as cooling, heating, drying, fixing, cooling down, purging and cleaning. Among them, the hot air generated by the vortex tube has a controllable temperature and concentrated heat, which can dry the printed products more effectively while reducing energy consumption. The cold air purging function can remove the pollutants on the surface of the printed products and maintain the cleanliness of the printed product surface. At the same time, the vortex tube technology itself does not produce harmful substances and meets the environmental protection requirements. The cold air generated by the vortex tube can be used to purge the surface of the printed products to remove these pollutants, making the surface of the printed products cleaner and tidier. The cold air can also be used to cool the key components of the printing equipment and extend the service life of the equipment.
[0033] The present utility model includes: a first box body 1, a second box body 2, an air compressor 3, a vortex tube 4, and a negative-pressure air pump 5. The first box body 1 and the second box body 2 are arranged opposite to each other in the upper and lower positions. The gap between the first box body 1 and the second box body 2 forms the finishing chamber 13; an air compressor 3 and a vortex tube 4 are installed inside the first box body 1, and the air compressor 3 is connected to the vortex tube 4 through a compressed air pipe 9; a negative-pressure air pump 5 is installed inside the second box body 2.
[0034] The following further describes the present utility model in conjunction with the drawings and embodiments.
[0035] Although the embodiments of the present utility model are described in conjunction with the drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations all fall within the scope defined by the appended claims.
[0036] The content of the present utility model can be more easily understood by referring to the following preferred implementation methods and included embodiments of the present utility model. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present utility model belongs. In case of conflict, the definitions in this specification shall prevail.
[0037] Embodiment 1: As shown in the Figure 1 accompanying drawings, a cold source air flow main pipe 10 is led out from the vortex tube 4, and a cold air exhaust pipe 27 is installed on the cold source air flow main pipe 10; a heat source air flow pipe 11 is led out from the vortex tube 4, and a hot air exhaust pipe 28 is installed on the heat source air flow pipe 11.
[0038] In the above, a cold source air valve 14 is installed on the cold source air flow main pipe 10, and a heat source air valve 12 is installed on the heat source air flow pipe 11.
[0039] In the above, a first cooling air branch pipe 15 and a second cooling air branch pipe 17 are further led out from the cold source air flow main pipe 10, and a first cooling air valve 16 and a second cooling air valve 18 are respectively installed on the first cooling air branch pipe 15 and the second cooling air branch pipe 17.
[0040] In the above, the tail end of the second cooling air branch pipe 17 is connected to a direct cooling air flow nozzle 19.
[0041] In the above, a normal temperature compressed air source branch pipe 21 is further led out from the compressed air pipe 9; the normal temperature compressed air source branch pipe 21 is connected to the bottom of the second box body 2 through a compressed air bottom blowing valve 25; at the same time, the normal temperature compressed air source branch pipe 21 is connected to the first cooling air branch pipe 15 and the heat source air flow pipe 11 through a compressed air mixing valve 24 and jointly connected to a mixing and pressure regulating box 7, and the mixing and pressure regulating box 7 leads out a mixing and pressure regulating air flow nozzle 20.
[0042] In the above, a temperature control device is installed in the mixing and pressure regulating box 7.
[0043] In the above, a control device 6 is installed in the first box body 1 or the second box body 2, and the control device 6 is connected to an air compressor 3 and a negative pressure air pump 5.
[0044] In the above, the negative pressure air pump 5 is installed at the bottom of the second box body 2; the negative pressure air pump 5 leads out a negative pressure suction cup 8.
[0045] In the above, a bottom impurity discharge port 26 is installed at the lowest position of the bottom of the second box body 2.
[0046] The implementation principle of this embodiment is as follows: When post - finishing of local workstations of printing equipment and printed products is required, the local workstations of the printing equipment to be processed and the printed products are placed in the finishing chamber 13, and the air compressor 3 and the negative - pressure air pump 5 are started through the control device 6; the direct - cooling air nozzle 19 controls and blows the cold - source air flow output by the vortex tube 4 through the second cooling air valve 18; the mixed - pressure - regulating air nozzle 20 outputs the cold and hot air flow mixed by the heat - source air flow pipe 11 and the first cooling air branch pipe 15 by blowing out the distribution air flow introduced through the compressed - air supply pipe 22; these working air flows perform finishing on the local workstations of the printing equipment to be processed and the printed products in a manner similar to the preset air - flow bathing. Further, the impurities cleaned from the local workstations of the printing equipment to be processed and the printed products fall and gather at the bottom of the second box body 2 in combination with the negative - pressure suction cup 8, and are further regularly cleaned by the compressed - air bottom - blowing pipe 23 and discharged through the bottom impurity - discharge port 26.
[0047] Preferably, high - precision temperature - control valves are provided on the direct - cooling air nozzle 19, the mixed - pressure - regulating air nozzle 20, and the compressed - air mixing valve 24. Further, for convenient application, the direct - cooling air nozzle 19 and the mixed - pressure - regulating air nozzle 20 can determine the setting parameters, positions, and quantities according to needs. Moreover, heat - insulating, pressure - resistant pipes can be connected and extended according to needs, or a swing - blowing device can be additionally provided, as well as a support structure for fixing these components. These are all preset one by one to meet the specific requirements of the local workstations of the printing equipment to be processed and the printed products to be treated.
[0048] In the embodiment of the present utility model, the air compressor 3, abbreviated as the air compressor, is a machine device that compresses air into high - pressure gas. It increases the pressure and density of air by reducing its volume, so that air can be stored and used more effectively. The working principle of the air compressor usually involves an electric motor driving the compressor, causing the crankshaft to rotate, driving the connecting rod to cause the piston to reciprocate, thereby changing the cylinder volume to compress air. Modern air compressors, especially screw - type air compressors, may reduce the volume through rotating screws or other similar structures to compress gas.
[0049] In the embodiment of the present utility model, the vortex tube 4 is also known as a vortex pipe, a vortex refrigerator, etc. Compressed air at a certain pressure enters the vortex generator of the vortex tube and expands and accelerates before rotating. The air flow enters the interior of the heat pipe along the heat pipe wall at a rotational speed of 1,000,000 rpm. After energy conversion occurs through vortex exchange in the heat pipe, the air flow is divided into two cold and hot air flows. At the end of the heat pipe, a part of the compressed air is discharged in the form of hot air through a regulating valve, and the remaining compressed air returns at a lower speed through the center of the rotating air flow entering the heat pipe. This cold air flow forms ultra-low temperature cold air through the center of the generator and is collected and discharged at the cold air end. The cold air flow ejected from the cold air end can reach a minimum cold air temperature of -35°C and a maximum temperature drop of 40°C under the premise of 7Bar and 25°C dry air. The limit temperature of the hot air flow ejected from the other end can reach +180°C. During the operation of the vortex tube 4, only factory compressed air is required, which is inexpensive and does not require expensive equipment, resulting in low costs. The vortex tube 4 is convenient to operate, lightweight and portable, requires no maintenance, has good safety, and a long service life. It contains no chemical enzymes such as Freon, has no residual waste to be cleaned, does not use electricity, and has no sparks.
[0050] In the embodiment of the present utility model, the negative pressure air pump 5, also known as a vacuum pump, is a device that causes gas to flow from a high-pressure area to a low-pressure area through a mechanical or electric device, thereby generating a negative pressure or vacuum effect. The negative pressure air pump is a type of pump device that can generate a negative pressure or vacuum. It works through a specific mechanical or electric method to extract the gas in a closed space, making the air pressure in this space lower than the external atmospheric pressure. The working principle of the negative pressure air pump is based on the rotational motion generated by a fan or a similar mechanical device. Specifically, the motor drives the fan (impeller) to rotate at a high speed through a bearing, thereby generating a low-pressure area inside the air pump. When the pressure inside the pump is lower than the external environmental pressure, external gas or liquid is automatically sucked into the pump. As the gas is continuously sucked in and rotated and squeezed by the fan blades, the gas is discharged from the pump through the outlet, thereby forming a negative pressure or vacuum effect.
[0051] Preferably, the vortex tube 4 selects a WA0-020 model product, supplies compressed air at 70°F (21.1°C), the outer diameter of the vortex chamber body is 30 mm, the cold air flow output temperature is -40°C, and the hot air flow output is 230°F (110°C); the air intake volume is 20 cfm / 0.698 BAR, and the steam consumption is 0.85 m 3 / min, and the refrigeration capacity is 2100 BTU / Hr.
[0052] In addition, during the printing process of this embodiment, especially when it comes to the processing of plastic screen plates, the direct cold air nozzle 19 can be used to prevent the screen plate from softening due to high temperature. The cold air flow generated by the vortex tube 4 can effectively reduce the temperature of the processing area, protect the screen plate from deformation, and thus ensure the printing quality.
[0053] In addition, this embodiment can also be applied to printing technologies such as waterless offset printing for controlling the temperature of the ink. The cold air flow or hot air flow generated by the vortex tube 4 is blown by the direct cold air flow nozzle 19 and the mixing and pressure-regulating air flow nozzle 20. By adjusting the hot end servo valve, the ink temperature can be controlled to ensure the stability and consistency of the ink during the printing process, and the ink temperature can be precisely adjusted, thereby optimizing the printing effect.
[0054] In addition, in printing equipment, some key components such as motors and bearings generate a large amount of heat during operation. If the heat cannot be dissipated in time, it may cause the equipment to overheat, its performance to decline, or even be damaged. This embodiment can generate a cold air flow for cooling these key components to ensure the normal operation of the equipment and extend its service life.
[0055] In addition, the application of the vortex tube 4 in this embodiment in the printing industry also reflects its environmental protection and energy-saving characteristics. The vortex tube 4 does not require the use of chemical refrigerants such as Freon for refrigeration and does not produce harmful emissions, meeting the environmental protection requirements. At the same time, the vortex tube 4 refrigeration system has a simple structure, is easy to maintain, and has a low operating cost, which helps to reduce the operating costs of printing enterprises.
[0056] Based on the above embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model. This is to avoid exhausting all implementation manners that are unnecessary and impossible to comprehensively list.
Claims
1. Post-print energy-saving finishing device for air-flow drying and cleaning, comprising a first box body (1), a second box body (2), an air compressor (3), a vortex tube (4) and a negative pressure air pump (5); characterized in that, The first box body (1) and the second box body (2) are arranged relatively up and down, and the gap between the first box body (1) and the second box body (2) forms a sorting chamber (13); an air compressor (3) and a vortex tube (4) are installed in the first box body (1), and the air compressor (3) is connected to the vortex tube (4) through a compressed air pipe (9); a negative pressure air pump (5) is installed in the second box body (2); the vortex tube (4) leads out a cold source air flow main pipe (10), and the vortex tube (4) leads out a heat source air flow pipe (11); the cold source air flow main pipe (10) further leads out a first cooling air branch pipe (15) and a second cooling air branch pipe (17).
2. The post-printing energy-saving finishing device for air-flow drying and cleaning according to claim 1, wherein, The compressed air pipe (9) further leads out a normal temperature compressed air source branch pipe (21); the normal temperature compressed air source branch pipe (21) is connected to the bottom inside the second box body (2) through a compressed air bottom blowing valve (25); at the same time, the normal temperature compressed air source branch pipe (21) and the first cooling air branch pipe (15) and the heat source air flow pipe (11) are commonly connected to a mixing and pressure regulating box (7) through a compressed air mixing valve (24), and the mixing and pressure regulating box (7) leads out a mixing and pressure regulating air flow nozzle (20).
3. The post-printing energy-saving finishing device with air-flow drying and cleaning according to claim 1, characterized in that, A cold source air valve (14) is installed on the cold source air flow main pipe (10), and a heat source air valve (12) is installed on the heat source air flow pipe (11).
4. The post-printing energy-saving finishing device for air-flow drying and cleaning according to claim 1, wherein A first cooling air valve (16) and a second cooling air valve (18) are respectively installed on the first cooling air branch pipe (15) and the second cooling air branch pipe (17).
5. The post-printing energy-saving finishing device for air-flow drying and cleaning according to claim 1, characterized in that, The tail end of the second cooling air branch pipe (17) is connected to a direct cooling air flow nozzle (19).
6. The post-printing energy-saving finishing device with air-flow drying and cleaning according to claim 1, wherein, The negative pressure air pump (5) is installed at the bottom of the second box body (2); the negative pressure air pump (5) leads out a negative pressure suction cup (8).
7. The post-printing energy-saving finishing device with air-flow drying and cleaning according to claim 1, characterized in that, An air cooling exhaust pipe (27) is installed on the cold source air flow main pipe (10), and a hot air exhaust pipe (28) is installed on the heat source air flow pipe (11).
8. The post-printing energy-saving finishing device for air-flow drying and cleaning according to claim 1, characterized in that, A control device (6) is installed in the first box body (1) or the second box body (2), and the control device (6) is connected to the air compressor (3) and the negative pressure air pump (5).
9. The post-printing energy-saving finishing device for air-flow drying and cleaning according to claim 1, wherein, A bottom impurity discharge port (26) is installed at the lowest position of the bottom of the second box body (2).
10. The post-printing energy-saving finishing device for air-flow drying and cleaning according to claim 2, characterized in that, A temperature control device is installed in the mixing and pressure regulating box (7).