Drying device for printing machine

Abstract

The utility model provides a drying device for a printing machine, and particularly relates to the technical field of printing equipment, the drying device comprises two frame bodies, a track conveying assembly used for conveying dried objects is arranged between the two frame bodies, and a cover body is arranged at the tops of the two frame bodies. The bottoms of the two frame bodies are connected with a containing frame used for containing the gas heating assembly, one side of the gas heating assembly is connected with a gas extraction pipeline, a filter screen is arranged in the gas extraction pipeline, and a circulation input end is arranged at the front end of the gas heating assembly. By arranging a hot gas recovery cover, a first gas extraction piece and a circulation input end, used hot gas can be recovered, the recovered hot gas is injected into the gas heating assembly again, the gas heating assembly can conduct secondary heating on the gas, the gas is reused, waste of the hot gas can be effectively avoided, and the working efficiency is improved. And the heating time of the hot gas for secondary heating is relatively short, so that the energy consumption of the gas heating assembly for heating the gas is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of printing equipment, in particular to a drying device for a printing press. Background Art

[0002] A printing press refers to a machine used for printing words and images. Modern printing presses generally consist of mechanisms such as plate loading, ink coating, impression, and paper feeding (including folding). Its working principle is as follows: First, the words and images to be printed are made into printing plates and installed on the printing press. Then, ink is applied to the areas with words and images on the printing plate by manual or the printing press. Next, it is directly or indirectly transferred to paper or other printing substrates (such as textiles, metal plates, plastics, leather, wooden boards, glass, and ceramics), thereby replicating the same printed matter as the printing plate. After the printing press prints the product, there will be residual wet ink on the surface of the product. To facilitate the collection and sorting of the product, it is necessary to use a drying device to promptly dry the ink on the surface of the product;

[0003] For existing drying devices, for example, a drying device for a printing press disclosed in the patent with the patent publication number CN212472789U includes a device frame, a device table, a device outer frame, a first fan, and a diversion cover. A number of groups of device feet are provided at the bottom of the device frame. The device table is fixedly installed on the device frame. A conveyor belt is provided on the device table. The device outer frame is fixedly installed on the device table. Side baffles are provided at both ends of the device outer frame perpendicular to the moving direction of the conveyor belt. The first fan is fixedly installed on the top of the device outer frame. An air inlet pipe is connected to the air inlet of the first fan. The air outlet of the first fan is connected to the air inlet of the diversion cover. The diversion cover is fixedly installed inside the device outer frame. A number of groups of air outlets are evenly provided on the diversion cover. This patent uses a heating box, a first fan, and a second fan in cooperation to respectively heat and blow cold the drying items. However, in this patent, there is no heat recycling device. Therefore, the hot air blown by the second fan will be wasted directly, and the heating box will continuously extract and heat the gas in the environment, increasing the energy consumption to a certain extent and increasing the drying cost.

[0004] Therefore, it is necessary to design a drying device for a printing press with waste heat recycling and bottom processing of the dried object. Summary of the Utility Model

[0005] To solve the above problems, the utility model proposes a drying device for a printing press to more precisely solve the above problems.

[0006] The utility model is achieved through the following technical solutions:

[0007] The present utility model provides a drying device for a printing press, which includes two frames. A track conveying assembly for conveying drying articles is arranged between the two frames. A cover body is arranged on the tops of the two frames. A placing rack for placing a gas heating assembly is connected to the bottoms of the two frames. An air extraction pipe is connected to one side of the gas heating assembly. A filter screen is arranged in the air extraction pipe. A circulation input end is arranged at the front end of the gas heating assembly. The circulation input end is connected to one side of the top of the frame through a first air extraction member. The input end of the first air extraction member passes through the frame and is connected to a hot air recovery cover. The rear end of the gas heating assembly is connected to an output end. The output end is connected to the other side of the top of the frame through a second air extraction member. The output end of the second air extraction member passes through the other side of the top of the frame and is connected to a hot air output cover. Heat insulation doors are arranged on both sides of the frame in a liftable manner.

[0008] Further, the track conveying assembly includes two rotating rollers, a conveyor belt wound around the two rotating rollers, and a motor connected to one side of the frame. The output end of the motor passes through the frame and is connected to the rotating roller.

[0009] Further, a plurality of uniformly distributed through holes are formed in the conveyor belt. Among the plurality of through holes, multiple groups of support blocks for placing drying articles are arranged, and the multiple groups of support blocks are arranged at equal intervals.

[0010] Further, a flow guiding frame is arranged between the two frames. The flow guiding frame is located between the two conducting rollers and the conveyor belt. A flow guiding groove is formed in the flow guiding frame. One end of the flow guiding groove faces the hot air output cover, and the other end of the flow guiding groove faces the hot air recovery cover.

[0011] Further, the side of the flow guiding frame close to the hot air output cover is higher than the side of the flow guiding frame close to the hot air recovery cover.

[0012] Further, the conveyor belt is made of a metal material.

[0013] Further, fixing holes are arranged on both sides of the cover body. Fixing members are connected to the fixing holes in a threaded manner. Adjusting grooves are formed at the front ends of both sides of the heat insulation door. The fixing members pass through the adjusting grooves and are connected to the fixing holes.

[0014] Further, heat insulation plates are arranged on the sides of the two heat insulation doors close to the hot air recovery cover and the hot air output cover respectively.

[0015] The beneficial effects of the present utility model:

[0016] The settings of the hot air recovery cover, the first air extraction component, and the circulation input end can recover the used hot air and inject the recovered hot air into the gas heating component again. The gas heating component will reheat the gas and reuse it, which can effectively avoid the waste of hot air. Moreover, the heating time of the reheated hot air is relatively short. Further, it reduces the energy consumption of the gas heating component when heating the gas. At the same time, to a certain extent, it increases the drying speed of the items.

[0017] The setting of the through holes can facilitate the flow of hot air to the lower part of the conveyor belt. The setting of the diversion frame can limit the movement range of the hot air. The setting of the support blocks can support the items and leave a moving space between the bottom of the items and the top of the conveyor belt. The existence of this space can facilitate the hot air flowing to the diversion frame to heat and dry the bottom of the items when moving upward. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure in the present utility model;

[0019] Figure 2 It is a schematic diagram of the split structure of the frame body and the track conveying component in the present utility model;

[0020] Figure 3 It is a schematic diagram of the overall side view structure in the present utility model;

[0021] Figure 4 It is a schematic diagram of the position structure of the gas heating component in the present utility model;

[0022] Figure 5 It is a schematic diagram of the internal structure of the gas heating component in the present utility model;

[0023] Figure 6 It is a schematic diagram of the hot air barrier door structure in the present utility model;

[0024] Figure 7 It is a schematic diagram of the diversion frame structure in the present utility model.

[0025] In the figure, 1. Frame body; 11. Cover body; 12. Placing rack; 2. Track conveying component; 21. Rotating roller; 22. Conveyor belt; 221. Through hole; 222. Support block; 23. Motor; 3. Gas heating component; 31. Air extraction pipe; 32. Filter screen; 33. Circulation input end; 34. Output end; 35. Shell; 351. Third air extraction component; 352. Flow channel; 353. Electric heating element; 4. First air extraction component; 41. Hot air recovery cover; 5. Second air extraction component; 51. Hot air output cover; 6. Hot air barrier door; 61. Fixed hole; 62. Fixing part; 63. Adjusting groove; 64. Heat insulation board; 7. Diversion frame; 71. Diversion groove. Detailed implementation mode

[0026] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment

[0028] Reference Figures 1-7 , a drying device for a printing press, including two frame bodies 1, a track conveying assembly 2 for conveying the drying articles is arranged between the two frame bodies 1, a cover body 11 is arranged on the tops of the two frame bodies 1, and a placing frame 12 for placing a gas heating assembly 3 is connected to the bottoms of the two frame bodies 1. One side of the gas heating assembly 3 is connected with an air extraction pipe 31, a filter screen 32 is arranged in the air extraction pipe 31, a circulation input end 33 is arranged at the front end of the gas heating assembly 3, the circulation input end 33 is connected with one side of the top of the frame body 1 through a first air extraction member 4, the input end of the first air extraction member 4 passes through the frame body 1 and is connected with a hot air recovery cover 41, the rear end of the gas heating assembly 3 is connected with an output end 34, the output end 34 is connected with the other side of the top of the frame body 1 through a second air extraction member 5, the output end 34 of the second air extraction member 5 passes through the other side of the top of the frame body 1 and is connected with a hot air output cover 51, and hot air barrier doors 6 are arranged on both sides of the frame body 1 in a liftable manner;

[0029] The arrangement of the air extraction pipe 31 can extract the air in the external environment, and the extracted air will be heated to the temperature limit required by the articles in the gas heating assembly 3. The arrangement of the second air extraction member 5 can extract and convey the heated hot air and input the gas into the hot air output cover 51. The hot air output cover 51 will input the hot air into the cover body 11 and dry the articles conveyed through the track conveying assembly 2. The arrangement of the first air extraction member 4 and the circulation input end 33 can recover the used hot air and inject the recovered hot air into the gas heating assembly again. The gas heating assembly 3 will reheat the gas and reuse it, which can effectively avoid the waste of hot air. Moreover, the heating time of the reheated hot air is relatively short. Further, it reduces the energy consumption of the gas heating assembly 3 when heating the gas, and at the same time, to a certain extent, increases the drying speed of the articles;

[0030] In this embodiment, the heating element in the gas heating assembly 3 can adopt existing heating elements, such as an electric heating element 353, a heat pump, etc.;

[0031] Optionally, refer to Figure 5 , the gas heating assembly 3 includes a housing 35. Inside the housing 35, a third air extraction member 351 connected to the air extraction pipe 31 is provided. Inside the housing 35, a flow channel 352 for the gas to flow is provided. A plurality of electric heating elements 353 are provided inside the flow channel 352;

[0032] The setting of the filter screen 32 can filter the air injected into the housing 35. On the premise of ensuring the cleanliness of the air itself, it reduces the damage of dust in the air to the electric heating elements 353, and to a certain extent, increases the service life of the electric heating elements 353.

[0033] Preferably, refer to Figure 2 , the rail conveying assembly 2 includes two rotating rollers 21, a conveyor belt 22 wound around the two rotating rollers 21, and a motor 23 connected to one side of the frame 1. The output end 34 of the motor 23 passes through the frame 1 and is connected to the rotating roller 21. The setting of the motor 23 can drive the rotating roller 21 connected to it to rotate respectively, and the rotating roller 21 will drive the conveyor belt 22 to move, so as to realize the conveying work of the dried items;

[0034] In this embodiment, the rotating directions of the two rotating rollers 21 are the same;

[0035] It should be noted that for those skilled in the art, other structures of the conveying assembly can also be adopted, and the rail conveying is an existing technology, so the specific structure thereof will not be described in detail in this application document;

[0036] Preferably, refer to Figure 2 , a plurality of uniformly distributed through holes 221 are formed in the conveyor belt 22. Among the plurality of through holes 221, a plurality of support blocks 222 for placing the dried items are provided, and the plurality of support blocks 222 are arranged at equal distances; a diversion frame 7 is provided between the two frames 1. The diversion frame 7 is located between the two conduction rollers and the conveyor belt 22, and a diversion groove 71 is formed in the diversion frame 7;

[0037] The setting of the through holes 221 can facilitate the hot air to flow to the lower part of the conveyor belt 22, and the setting of the diversion frame 7 can limit the movement range of the hot air. The setting of the support blocks 222 can support the items and leave a moving space between the bottom of the items and the top of the conveyor belt 22. The existence of this space can facilitate the hot air flowing to the diversion frame 7 to heat and dry the bottom of the items when moving upward;

[0038] Specifically, first, the staff takes out the items to be dried and places them on the top of the support block 222. Then, the track conveying assembly 2 is started, and the track conveying assembly 2 conveys the items to the cover body 11. After the items move into the cover body 11, the hot air output cover 51 discharges heat above the items and dries the items. However, a certain amount of hot air will enter the through hole 221. When the hot air enters the through hole 221, it will flow in the diversion groove 71. At the same time, as the hot air in the diversion groove 71 increases and the heat gradually rises, the hot air will pass through the through hole 221 again to contact the bottom of the items and heat and dry the bottom of the items, thus ensuring the quality of the items after drying.

[0039] In this embodiment, one end of the diversion groove 71 is opposite to the hot air output cover 51, and the other end of the diversion groove 71 is opposite to the hot air recovery cover 41. The advantage of this setting of the diversion groove 71 is that when the hot air output cover 51 outputs hot air, it will input a part of the heat into the diversion groove 71, and the hot air recovery cover 41 will recycle the hot air flowing out of the diversion groove 71, thus avoiding waste of hot air.

[0040] In this embodiment, the cooperation of the diversion groove 71, the hot air output cover 51 and the through hole 221 can, to a certain extent, quickly increase the temperature in the cover body 11.

[0041] In this embodiment, refer to Figure 7 , one side of the diversion frame 7 close to the hot air output cover 51 is higher than the side of the diversion frame 7 close to the hot air recovery cover. The advantage of the inclined setting of both the diversion frame 7 and the diversion groove 71 is that as the hot air flows, the movement range of the hot air will gradually decrease, and as the space decreases, the flow rate of the hot air will increase, so as to quickly raise the temperature in the cover body 11 and contact the bottom of the items in multiple directions, thus ensuring the uniformity of drying the bottom of the items and the quality of the items after drying.

[0042] In this practical embodiment, the conveyor belt 22 is made of metal material. The advantage of using the metal material for the conveyor belt 22 is that it can increase the strength of the conveyor belt 22 itself, thus ensuring the progress of the work of opening the through hole 221 and the installation and replacement of the support block 222.

[0043] In this embodiment, a set of support blocks 222 is two, and the installation positions of the support blocks 222 can be installed in different through holes 221 according to different items. Among them, the installation method of the support block 222 and the through hole 221 is plug-in clamping; of course, threaded connection or other fixing methods can also be used, and they are not limited in this application document.

[0044] Preferably, refer to Figure 3, fixing holes 61 are provided on both sides of the cover body 11. A fixing member 62 is threadedly connected in the fixing hole 61. Adjusting grooves 63 are formed on both sides of the front end of the hot gas barrier door 6. The fixing member 62 passes through the adjusting groove 63 and is connected to the fixing hole 61. The cooperation of the fixing member 62, the adjusting groove 63 and the fixing hole 61 can achieve the fixing work of the hot gas barrier door at any position, so as to ensure the carrying work of the track conveying assembly 2 for articles;

[0045] Preferably, heat insulation plates 64 are provided on one side of each of the two hot gas barrier doors 6 close to the hot gas recovery cover 41 and the hot gas output cover respectively.

[0046] Certainly, the present invention may also have many other implementation manners. Based on this implementation manner, other implementation manners obtained by ordinary technicians in the art without any creative labor belong to the scope protected by the present invention.

Claims

1. A drying device for a printing press, characterized in that: The invention comprises two frames, wherein a track conveying assembly for conveying dried articles is arranged between the two frames, a cover is arranged on the top of the two frames, and a placement rack for placing a gas heating assembly is connected to the bottom of the two frames, one side of the gas heating assembly is connected to an exhaust pipe, a filter is arranged in the exhaust pipe, a circulation input end is arranged at the front end of the gas heating assembly, the circulation input end is connected to one side of the top of the frame through a first exhaust piece, the input end of the first exhaust piece passes through the frame and is connected to a hot air recovery hood, the rear end of the gas heating assembly is connected to an output end, the output end is connected to the other side of the top of the frame through a second exhaust piece, the output end of the second exhaust piece passes through the other side of the top of the frame and is connected to a hot air output hood, and hot air barrier doors are arranged on both sides of the frame which can be raised and lowered.

2. A drying device for a printing press according to claim 1, characterized in that: The track conveying assembly includes two rotating rollers, a conveying belt wound around the two rotating rollers, and a motor connected to one side of the frame, wherein the output end of the motor passes through the frame and is connected to the rotating rollers.

3. A drying device for a printing press according to claim 2, characterized in that: The conveyor belt is provided with a plurality of evenly distributed through holes, and a plurality of groups of support blocks for placing dried articles are arranged in the plurality of through holes, and the plurality of groups of support blocks are arranged in an equidistant manner.

4. A drying device for a printing press according to claim 1, characterized in that: A guide frame is arranged between the two frames, and the guide frame is located between the two rotating rollers and the conveyor belt. A guide groove is opened on the guide frame, one end of the guide groove is located opposite to the hot air output cover, and the other end of the guide groove is opposite to the hot air recovery cover.

5. A drying device for a printing press according to claim 4, characterized in that: The side of the guide frame close to the hot gas output cover is higher than the side of the guide frame close to the hot gas recovery cover.

6. A drying device for a printing press according to claim 2, characterized in that: The conveyor belt is made of metal material.

7. A drying device for a printing press according to claim 1, characterized in that: Both sides of the cover body are provided with fixing holes, and fixing pieces are connected with threads in the fixing holes. Adjustment grooves are provided on both sides of the front end of the heat barrier door, and the fixing pieces pass through the adjustment grooves and are connected with the fixing holes.

8. A drying device for a printing press according to claim 1, characterized in that: The two hot air blocking doors are respectively provided with heat insulation boards on one side close to the hot air recovery hood and the hot air output hood.

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