CN211467844U

CN211467844U - Drying device between colours of satellite flexographic printing machine

Info

Publication number: CN211467844U
Application number: CN201922061166.5U
Authority: CN
Inventors: 梁锐艺; 陈静华
Original assignee: Foshan Xinsanhe Plastic Film Manufacturing Co ltd
Current assignee: Foshan Xinsanhe Plastic Film Manufacturing Co ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-09-11
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a color space drying device of a satellite flexographic printing machine, which comprises an oven, a heating device, an air inlet pipe and a drying box, the heat transfer case, the muffler, first trachea, air cleaner and second trachea, the oven is provided with heating device, oven and intake-tube connection, be equipped with first fan in the intake pipe, a plurality of drying cabinets and intake-tube connection, be equipped with the air outlet towards the impression cylinder on the drying cabinet, the heat transfer incasement is equipped with the snakelike baffle of splitting the heat transfer case into first cavity and second cavity, a plurality of drying cabinets pass through the muffler and are connected with first cavity one side, be connected with the second fan on the muffler, first cavity opposite side is connected with the oven through first trachea, second cavity one side is connected with air cleaner, the opposite side passes through the second trachea and is connected with the oven in addition, be equipped with the third fan on the second trachea, be equipped with baroceptor in the oven. Adopt the utility model discloses, realize that the waste heat of the steam of make full use of recovery preheats the gaseous function of room temperature, reduce the energy consumption.

Description

Drying device between colours of satellite flexographic printing machine

Technical Field

The utility model relates to a satellite flexographic printing machine equipment technical field especially relates to a drying device between look of satellite flexographic printing machine.

Background

The satellite type flexible plate printing machine has one shared impression cylinder with transfer units around it and installed between two side plates of the printing machine, and the printing material around the shared impression cylinder for color register printing with high register precision. Because the distance is too short between each printing unit, is smeared easily when the printing ink is dry badly, so need adopt hot-blast dry printing ink that comes between each printing unit, drying device includes hot-blast heating device and drying cabinet between current look, and hot-blast heating device produces steam and carries its drying cabinet, and the drying cabinet blows off steam toward the printing material, then direct drainage after the steam recovery is to the assigned position and discharges, can't utilize the waste heat of the steam of recovery like this, causes the heat energy loss.

Disclosure of Invention

The utility model aims to solve the technical problem that a drying device between look of satellite flexographic printing machine is provided, the gaseous function of room temperature is preheated to the waste heat of the steam that realizes the make full use of recovery, reduces the energy consumption.

In order to solve the technical problem, the utility model provides a color space drying device of a satellite flexographic printing machine, which comprises an oven, a heating device, an air inlet pipe, a drying box, a heat exchange box, an air return pipe, a first air pipe, an air filter and a second air pipe, wherein the oven is provided with the heating device, the oven is connected with the air inlet pipe, the air inlet pipe is provided with a first fan, a plurality of drying boxes are connected with the air inlet pipe, the drying box is provided with an air outlet facing to an impression cylinder, the heat exchange box is internally provided with a snakelike baffle plate which divides the heat exchange box into a first cavity and a second cavity, the drying boxes are connected with one side of the first cavity through the air return pipe, the air return pipe is connected with a second fan, the other side of the first cavity is connected with the oven through the first air pipe, one side of the second cavity is connected with the air filter, an air pressure sensor is arranged in the oven.

The heating device comprises an oil guide pipe and a heat conduction oil heater, the oil guide pipe is arranged in the inner container, and the oil guide pipe is communicated with the heat conduction oil heater outside the oven.

The oil guide pipe comprises oil guide pipe radiating pipes, a first connecting pipe and a second connecting pipe, wherein the radiating pipes are arranged in the inner container in a matrix arrangement mode and are communicated with each other sequentially from head to tail through the first connecting pipe, the first connecting pipe is located between the inner container and the inner wall of the oven, and the first and last radiating pipes are communicated with a heat conduction oil heater located outside the oven through the second connecting pipe respectively.

Wherein, the outer wall of the radiating pipe is connected with a plurality of radiating fins which are parallel to each other.

Wherein, be equipped with the separating block that is used for prolonging gas flow path in first cavity and the second cavity.

The drying box comprises an outer shell, an inner shell and an adjusting mechanism, wherein the outer shell is provided with an opening which is formed towards the impression cylinder and is enlarged in a conical shape, the inner shell is arranged in the outer shell, the adjusting mechanism is arranged on the outer shell, the inner shell is connected with the adjusting mechanism and can be close to or far away from the inner bottom of the outer shell under the driving of the adjusting mechanism, the air outlet is arranged on the inner shell, one end of the inner shell is communicated with the air inlet pipe, and one end of the outer shell is communicated with the air return pipe.

The adjusting mechanism comprises guide rods, adjusting screws, locking nuts and a first spring, the two guide rods and the two adjusting screws are fixedly connected with the inner shell, the two guide rods penetrate through the outer shell and are in sliding connection with the outer shell, the two adjusting screws penetrate through the outer shell and are in threaded connection with the locking nuts respectively, and the first spring is sleeved on the adjusting screws and located between the inner shell and the outer shell.

The hot air return device comprises an inner shell, and is characterized by further comprising an auxiliary support, wherein the auxiliary support comprises mounting strips, supporting blocks and second springs, the two mounting strips are respectively fixed on two sides of the inner shell, grooves are formed in the mounting strips, one end of each supporting block is located in each groove, the other end of each supporting block extends out of each groove, the second springs are arranged between the supporting blocks and the bottoms of the grooves, the tops of the supporting blocks abut against the inner wall of the outer shell under the action of the second springs, and the supporting blocks are provided with a plurality of ventilation openings for hot air return.

And the side surface of the mounting strip is flush with the surface, close to the air outlet, of the inner shell.

Implement the utility model has the advantages that: (1) the heating device heats the gas in the oven, the high-temperature gas flows into the drying oven through the gas inlet pipe, then the reflowed high-temperature gas reflows to the first cavity through the gas return pipe, and the high-temperature gas exchanges heat with the low-temperature gas in the second cavity to achieve the purpose of preheating the low-temperature gas and realize the function of fully utilizing the waste heat of the recycled high-temperature gas; (2) the inner shell can change the position of the inner shell in the shell through the adjusting mechanism, so that the position of the inner shell in the shell can be independently adjusted, and the phenomenon that when the distance between the air outlet and a printing material is adjusted, a gap between the outer shell and the impression cylinder is enlarged, and hot air is leaked is avoided; (3) be provided with auxiliary stay, can improve the inner shell and blow off the stability of hot-blast in-process inner shell, avoid the inner shell to rock.

Drawings

Fig. 1 is a schematic structural diagram of a color space drying device of a satellite flexographic printing machine according to the present invention;

fig. 2 is a top cross-sectional view of an oven in the inter-color drying device of the satellite flexographic printing machine according to the present invention;

3 FIG. 3 3 3 is 3 a 3 view 3 A 3- 3 A 3 of 3 FIG. 3 2 3; 3

Fig. 4 is a main sectional view of a heat exchange box in the inter-color drying device of the satellite flexographic printing machine according to the present invention;

FIG. 5 is the main sectional view of the drying box in the color space drying device of the satellite flexographic printing machine

Fig. 6 is a main sectional view of another state of the drying box in the inter-color drying device of the satellite flexographic printing machine according to the present invention;

fig. 7 is a view B-B of fig. 5.

In the figure: 1. an oven; 11. an inner container; 12. heat preservation cotton; 2. a heating device; 21. a radiating pipe; 211. a heat sink; 22. a first connecting pipe; 23. a second connecting pipe; 24. a heat conducting oil heater; 3. an air inlet pipe; 31. a first fan; 4. a drying oven; 41. an air outlet; 42. a housing; 43. an inner shell; 44. an adjustment mechanism; 441. a guide bar; 442. adjusting the screw rod; 443. locking the nut; 444. a first spring; 45. auxiliary supporting; 451. mounting a bar; 454. a groove; 452. a support block; 4521. a vent; 453. a second spring; 5. a heat exchange box; 51. a first cavity; 52. a second cavity; 53. a serpentine shaped baffle; 54. a blocking block; 6. an air return pipe; 61. a second fan; 7. a first air pipe; 8. an air filter; 9. a second air pipe; 91. a third fan; 10. an air pressure sensor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-7, the utility model relates to a color space drying device of a satellite flexographic printing machine, which comprises an oven 1, a heating device 2, an air inlet pipe 3, a drying box 4, a heat exchange box 5, an air return pipe 6, a first air pipe 7, an air filter 8 and a second air pipe 9, wherein the oven 1 is arranged outside the satellite flexographic printing machine, the oven 1 is provided with the heating device 2, the oven 1 is connected with the air inlet pipe 3, the air inlet pipe 3 is provided with a first fan 31, 3 drying boxes 4 are connected with the air inlet pipe 3, the drying box 4 is provided with an air outlet 41 facing an impression cylinder, the heating device 2 heats low-temperature gas in the oven 1, the high-temperature gas flows into the 3 drying boxes 4 through the air inlet pipe 3 under the suction of the first fan 31, then the high-temperature gas is sprayed onto a printing material from the air outlets 41 to dry the printing ink, a serpentine partition plate 53 which divides the heat exchange box 5 into a first cavity 51 and a second cavity 52 is, the first cavity 51 is positioned below the second cavity 52, a water outlet is arranged at the bottom of the first cavity 51, the 3 drying boxes 4 are connected with one side of the first cavity 51 through an air return pipe 6, the air return pipe 6 is connected with a second fan 61, the other side of the first cavity 51 is connected with the oven 1 through a first air pipe 7, concretely, a one-way valve is arranged on the first air pipe 7, when the air in the first cavity 51 reaches a certain air pressure value, the one-way valve is opened, the air in the first cavity 51 flows back to the oven 1, one side of the second cavity 52 is connected with an air filter 8, the other side is connected with the oven 1 through a second air pipe 9, a third fan 91 is arranged on the second air pipe 9, the high-temperature air in the 3 drying boxes 4 enters the air return pipe 6 under the suction of the second fan 61, then flows into the first cavity 51 through the air return pipe 6, the outside air enters the second cavity 52 after being filtered by the air filter 8 under the suction of the third fan 91, the high-temperature gas in the first cavity 51 exchanges heat with the low-temperature gas in the second cavity 52, the high-temperature gas can remove moisture in the heat exchange process and simultaneously preheats the low-temperature gas, so that the waste heat of the recovered high-temperature gas can be fully utilized, the moisture in the high-temperature gas is condensed into water and is condensed on the inner wall of the first cavity 51, the moisture flows to the bottom of the heat exchange box 5 along the inner wall and can be discharged from a water outlet, the high-temperature gas after heat exchange flows back to the oven 1 through the first air pipe 7 for recycling, the preheated low-temperature gas enters the oven 1 through the second air pipe 9, the air pressure sensor 10 is arranged in the oven 1, the controller of the satellite flexographic printing machine presets the detection range value of the air pressure sensor 10, part of the gas leaks from the gap between the drying box 4 and the impression cylinder in the ink drying process, when the air pressure sensor 10 detects that the air pressure value in the oven 1 is lower than, the third fan 91 is started to suck the preheated low-temperature gas into the oven 1, and when the air pressure sensor 10 detects that the air pressure value in the oven 1 is higher than a preset value, the third fan 91 is stopped.

Preferably, referring to fig. 2 and 3, an inner container 11 is arranged in the oven 1, heat insulation cotton 12 is filled between the inner container 11 and the inner wall of the oven 1, and the heat insulation cotton 12 is arranged to make heat in the inner container 11 difficult to transfer with the outside so as to achieve the heat insulation effect, the heating device 2 includes an oil guide pipe and a heat conduction oil heater 24, specifically, the oil guide pipe includes heat dissipation pipes 21, first connection pipes 22 and second connection pipes 23, 39 heat dissipation pipes 21, the first connection pipes 22 and the second connection pipes 23 are arranged in the inner container 11 in a matrix arrangement manner, and are sequentially communicated with each other end to end through the first connection pipes 22, the first connection pipes 22 are located between the inner container 11 and the inner wall of the oven 1, the first and last two heat dissipation pipes 21 are respectively communicated with the heat conduction oil heater 24 located outside the oven 1 through the second connection pipes 23, the heat conduction oil heater 24 provides high temperature liquid, the, be provided with many cooling tubes 21 to cooling tube 21 outer wall is connected with 9 ~ 10 mutually parallel fin 211, can increase the heat radiating area of high temperature liquid, improves the speed of heating low temperature gas.

Preferably, referring to fig. 4, a blocking block 54 for extending a gas flow path is provided in each of the first and

second chambers

51 and 52. The partition blocks 54 are disposed at the concave positions of the serpentine-shaped partition plates 53 and are connected at one side to the inner wall of the heat exchange box 5, so that the recovered high-temperature gas and the low-temperature gas sucked from the environment flow in an S-shaped path to extend the gas flow path and the gas residence time.

Preferably, referring to fig. 1, 5 and 6, the drying box 4 includes an outer shell 42, an inner shell 43 and an adjusting mechanism 44, the outer shell 42 is detachably connected to two sides of the satellite flexographic printing machine, the outer shell 42 has an opening opened toward the impression cylinder and conically expanded, the inner shell 43 is disposed in the outer shell 42, the adjusting mechanism 44 is disposed on the outer shell 42, the inner shell 43 is connected to the adjusting mechanism 44 and can be close to or far from the inner bottom of the outer shell 42 under the driving of the adjusting mechanism 44, the air outlet 41 is disposed on the inner shell 43, the width of the air outlet 31 is 2mm to 5mm, preferably 3mm, one end of the inner shell 43 is communicated with the air inlet pipe 3, and one end of the outer shell 42 is communicated with the air return pipe 6. The adjusting mechanism 44 is adjusted to adjust the distance between the air outlet end face of the air outlet 41 on the inner shell 43 and the printing material, so as to meet the drying technical requirement of the printing material, thereby ensuring the drying effect; in the drying process, high-temperature gas enters the inner shell 43 from the air inlet pipe 3 and then flows out from the air outlet 41, the high-temperature gas acts on the printing material to dry the ink of the printing material, and then the high-temperature gas collides with the impression cylinder and rebounds to a position between the inner shell 43 and the outer shell 42 and finally flows out from the air return pipe 6.

Preferably, referring to fig. 5 and 6, the adjusting mechanism 44 includes a guide rod 441, an adjusting screw 442, a locking nut 443, and a first spring 444, wherein the two guide rods 441 and the two adjusting screws 442 are both fixedly connected to the inner casing 43, the two guide rods 441 penetrate through the outer casing 42 and are slidably connected to the outer casing 42, the guide rod 411 performs a guiding function, a scale can be disposed on the guide rod 411, an adjusted distance value can be quickly seen through the scale to deduce a distance between the air outlet 41 on the inner casing 43 and the platen roller, the two adjusting screws 442 penetrate through the outer casing 42 and are threadedly connected to the locking nut 443, and the first spring 444 is sleeved on the adjusting screw 442 and is located between the inner casing 43 and the outer casing 42. When the position of the inner casing 43 is adjusted, the locking nut 443 is rotated, so that the locking nut 443 is screwed in or out of the adjusting screw 442, the installation position of the inner casing 43 is adjusted by changing the length of the adjusting screw 442 from the outside of the inner casing 43 to the bottom of the outer casing 42, that is, the distance between the air outlet end of the air outlet 41 and the printing material is adjusted, and the first spring 444 is always in a compressed state, so that the first spring 444 always abuts against the inner casing 43 and the outer casing 42 due to resilience force, thereby ensuring that the locking nut 443 and the adjusting screw 442 are not easy to be separated in the high-temperature gas drying process.

Preferably, referring to fig. 5, 6 and 7, the auxiliary support 45 further comprises an auxiliary support 45, the auxiliary support 45 comprises two mounting bars 451, a supporting block 452 and second springs 453, the two mounting bars 451 are respectively fixed on two sides of the inner shell 43, a groove 454 is formed in the mounting bar 451, one end of the supporting block 452 is located in the groove 454, the other end of the supporting block 452 extends out of the groove 454, 9 second springs 453 are arranged between the supporting block 452 and the bottom of the groove 454, the groove 454 has a guiding function, the supporting block 452 can slide up and down along the vertical direction of the bottom of the groove 454, the top of the supporting block 452 abuts against the inner wall of the outer shell 42 under the action of the

second springs

453, and 6 ventilation openings 4521 for backflow of hot air are formed in the supporting block 452. Referring to fig. 6, when the inner case 43 is moved away from the printing material, that is, the inner case 43 moves closer to the bottom of the outer case 42, the supporting block 452 moves closer to the inner case 43 by the inclined inner wall of the outer case 42, thereby compressing the second spring 453, and the second spring 453 always pushes the supporting block 452 against the inner wall of the outer case 42 by the resilient force; vice versa to when realizing that inner shell 43 is in the optional position of shell 42, two supporting shoes 452 all can support two inner walls of shell 42 respectively under the effect of second spring 453, in order to guarantee the stability of inner shell 43, avoid inner shell 43 to produce easily because of the holding power of shell 42 is not enough and rock at the in-process that blows off high-temperature gas, thereby lead to inner shell 43 fragile, life is short.

Preferably, referring to fig. 5, the side surface of the mounting strip 451 is flush with the surface of the inner shell 43 close to the air outlet 41, two platform areas are formed on two sides of the air outlet 41, the high-temperature gas is smoothly blown out from the air outlet 41, the high-temperature gas reaches the printing material, and the process of drying the printing material is realized.

The working principle is as follows: according to the drying technical requirements of the printing material, the position of the inner shell 43 in the outer shell 42 is adjusted, namely the distance between the air outlet 41 on the inner shell 43 and the printing material is optimally adjusted; when the satellite flexographic printing machine transfers printing materials, the controller controls the heating device 3 to heat the gas in the oven 1, the heated gas flows into the inner shells 43 of the 3 drying boxes 4 through the air inlet pipe 3 under the suction of the first fan 31, then the heated gas is sprayed onto the printing materials through the air outlet 41 to dry ink, the reflowed high-temperature gas flows into the air return pipe 6 from the space between the outer shell 42 and the inner shell 43 under the action of the second fan 61, then the reflowed high-temperature gas flows into the first cavity 51 through the air return pipe 6, when the air pressure sensor 10 detects that the air pressure in the oven 1 is lower than a preset value, the controller controls the third fan 91 to suck the gas, the gas in the external environment flows into the second cavity 52 after being filtered by the air filter 8, the low-temperature gas and the reflowed high-temperature gas are subjected to heat transfer, so as to preheat the low-temperature gas, and the preheated gas flows into the oven 1 through the second air, when the air pressure sensor 10 detects that the air pressure in the oven 1 is higher than the preset value, the third fan 91 is stopped, in the process of preheating the low-temperature gas, the water in the reflowed high-temperature gas is condensed into water and is condensed on the inner wall of the first cavity 51, so that the purpose of dewatering is achieved, when the gas in the first cavity 51 reaches a certain air pressure value, the one-way valve is opened, and the gas in the first cavity 51 reflows to the oven 1 for cyclic utilization. Adopt the utility model discloses, realize that the waste heat of the steam of make full use of recovery preheats the gaseous function of room temperature, reduce the energy consumption.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A color space drying device of a satellite flexographic printing machine is characterized by comprising an oven (1), a heating device (2), an air inlet pipe (3), drying boxes (4), a heat exchange box (5), an air return pipe (6), a first air pipe (7), an air filter (8) and a second air pipe (9), wherein the oven (1) is provided with the heating device (2), the oven (1) is connected with the air inlet pipe (3), the air inlet pipe (3) is provided with a first fan (31), a plurality of drying boxes (4) are connected with the air inlet pipe (3), the drying boxes (4) are provided with air outlets (41) facing an impression cylinder, the heat exchange box (5) is internally provided with a snakelike partition plate (53) which divides the heat exchange box (5) into a first cavity (51) and a second cavity (52), and the drying boxes (4) are connected with one side of the first cavity (51) through the air return pipe (6), be connected with second fan (61) on muffler (6), first cavity (51) opposite side is connected with oven (1) through first trachea (7), and second cavity (52) one side is connected with air cleaner (8), and the opposite side is connected with oven (1) through second trachea (9), is equipped with third fan (91) on second trachea (9), is equipped with baroceptor (10) in oven (1).

2. The drying device for the color space of the satellite flexographic printing machine according to claim 1, wherein an inner container (11) is arranged in the oven (1), heat insulation cotton (12) is filled between the inner container (11) and the inner wall of the oven (1), the heating device (2) comprises an oil guide pipe and a heat conduction oil heater (24), the oil guide pipe is arranged in the inner container (11), and the oil guide pipe is communicated with the heat conduction oil heater (24) positioned outside the oven (1).

3. The inter-color drying device of the satellite flexographic printing machine according to claim 2, wherein the oil guide pipe comprises a plurality of heat dissipation pipes (21), a first connection pipe (22) and a second connection pipe (23), the plurality of heat dissipation pipes (21) are arranged in the inner container (11) in a matrix arrangement mode and are sequentially communicated with one another end to end through the first connection pipe (22), the first connection pipe (22) is located between the inner container (11) and the inner wall of the oven (1), and the first and last two heat dissipation pipes (21) are respectively communicated with the heat conduction oil heater (24) located outside the oven (1) through the second connection pipe (23).

4. The inter-color drying device of a satellite flexographic printing machine according to claim 3, characterized in that a plurality of heat radiating fins (211) are connected to the outer wall of said heat radiating pipe (21) in parallel with each other.

5. The inter-color drying apparatus of a satellite flexographic printing machine according to claim 1, characterized in that the first chamber (51) and the second chamber (52) are each provided with a spacer (54) for extending the gas flow path.

6. The drying device for the color space of the satellite flexographic printing machine according to claim 1, characterized in that the drying box (4) comprises an outer shell (42), an inner shell (43) and an adjusting mechanism (44), the outer shell (42) is provided with an opening which is opened towards the impression cylinder and is enlarged in a conical shape, the inner shell (43) is arranged in the outer shell (42), the adjusting mechanism (44) is arranged on the outer shell (42), the inner shell (43) is connected with the adjusting mechanism (44) and can be close to or far away from the inner bottom of the outer shell (42) under the driving of the adjusting mechanism (44), the air outlet (41) is arranged on the inner shell (43), one end of the inner shell (43) is communicated with the air inlet pipe (3), and one end of the outer shell (42) is communicated with the air return pipe (6).

7. The device for drying the color space of the satellite flexographic printing press according to claim 6, characterized in that the adjusting mechanism (44) comprises a guide rod (441), an adjusting screw (442), a locking nut (443), and a first spring (444), wherein the two guide rods (441) and the two adjusting screws (442) are fixedly connected with the inner shell (43), the two guide rods (441) penetrate through the outer shell (42) and are slidably connected with the outer shell (42), the two adjusting screws (442) respectively penetrate through the outer shell (42) and are in threaded connection with the locking nut (443), and the first spring (444) is sleeved on the adjusting screw (442) and is located between the inner shell (43) and the outer shell (42).

8. The drying device between colors of a satellite flexographic printing machine according to claim 6, characterized in that, further comprises an auxiliary support (45), said auxiliary support (45) comprises a mounting strip (451), a supporting block (452) and a second spring (453), two mounting strips (451) are respectively fixed on two sides of said inner shell (43), a groove (454) is formed in the mounting strip (451), one end of said supporting block (452) is located in the groove (454), the other end extends out of the groove (454), a plurality of second springs (453) are arranged between the supporting block (452) and the bottom of the groove (454), the top of the supporting block (452) is abutted against the inner wall of said outer shell (42) under the action of the second spring (453), and a plurality of ventilation openings (4521) for hot air backflow are formed in said supporting block (452).

9. The drying device for satellite flexographic printing machines according to claim 8, characterized in that the side of said mounting strip (451) is flush with the surface of said inner shell (43) close to said air outlet (41).