CN111907209A

CN111907209A - Rotary type efficient printing drying system and drying method

Info

Publication number: CN111907209A
Application number: CN202010876828.9A
Authority: CN
Inventors: 王超锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2020-11-10

Abstract

The invention discloses a rotary type efficient printing and drying system which comprises an equipment base, wherein a vertical rotary motor is fixedly installed on the equipment base, and a rotary output shaft of the rotary motor is coaxially connected with a horizontal disc-shaped rotary drying platform; the rotary output shaft can drive the rotary drying platform to rotate along the axis; a plurality of circular grooves are distributed on the contour edge of the upper surface of the rotary drying platform in a circumferential array; the heat of the thin-wall metal barrel body can be transferred to the outer wall surface of the thin-wall metal barrel body under the action of metal heat conduction, so that the printing ink, paint or water-based paint adhered to the outer wall surface of the thin-wall metal barrel body and waiting for quick drying is heated, and the volatilization efficiency of the printing ink, paint or water-based paint adhered to the outer wall surface of the thin-wall metal barrel body and waiting for quick drying is promoted.

Description

Rotary type efficient printing drying system and drying method

Technical Field

The invention belongs to the field of printing and drying.

Background

In order to avoid the generation of static electricity, combustible liquid products such as paint, chemical solvents, gasoline and the like are often contained by adopting a thin-wall metal barrel as an outer package, and as one type of package, patterns which are reserved on the outer side surface of the barrel body of the thin-wall metal barrel body are required to be printed, sprayed or brushed, so that the outer wall of the thin-wall metal barrel body forms a preset pattern;

printing ink, paint or water-based paint on the outer surface of the metal barrel can be completely dried for a long time, and the serious influence is caused, so that special design of drying equipment for the thin-wall metal barrel body is needed.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides a rotary type high-efficiency printing and drying system and a drying method.

The technical scheme is as follows: in order to achieve the purpose, the rotary type efficient printing and drying system comprises an equipment base, wherein a vertical rotary motor is fixedly installed on the equipment base, and a rotary output shaft of the rotary motor is coaxially connected with a horizontal disc-shaped rotary drying platform; the rotary output shaft can drive the rotary drying platform to rotate along the axis; a plurality of circular grooves are distributed on the contour edge of the upper surface of the rotary drying platform in a circumferential array;

the drying device also comprises a thin-wall metal barrel body, wherein printing ink, paint or water-based paint to be dried is adhered to the outer side surface of the thin-wall metal barrel body, and the bottom parts of the thin-wall metal barrel bodies are respectively placed in the circular grooves in a limiting manner;

the drying device is characterized by further comprising a drying unit, wherein the rotary energy of the rotary output shaft drives any thin-wall metal barrel body placed on the rotary drying platform to correspond to the drying unit, and the drying unit can dry printing ink, paint or water-based paint adhered to the outer side surface of the corresponding thin-wall metal barrel body.

Furthermore, the clamp device is arranged at the execution tail end of the mechanical arm and provided with two clamping blocks extending downwards, and the two clamping blocks can move close to or away from each other; the mechanical arm can drive the clamping device to enable the two clamping devices to simultaneously extend downwards into the barrel of the thin-wall metal barrel body, and the two clamping devices can be far away from each other to clamp the inner wall of the thin-wall metal barrel body; and further realizes the clamping, transferring and releasing of the thin-wall metal barrel body.

Furthermore, the drying unit comprises a vertical lifter, a lifting platform is fixed at the upper end of a lifting rod of the lifter, a horizontal lifting ring is fixedly connected to one side of the lifting platform through a lifting wall, the inner ring of the lifting ring is integrally connected with a vertical drying outer barrel together with the axis, and the inner diameter of the drying outer barrel is larger than the outer diameter of the thin-wall metal barrel body; the top of the drying outer cylinder is integrally provided with a cylinder top; the rotary output shaft can drive any thin-wall metal barrel body placed on the rotary drying platform to correspond to the position right below the drying outer barrel body coaxially, and the downward displacement of the drying outer barrel body can be completely covered on the outer side of the corresponding thin-wall metal barrel body coaxially.

Furthermore, a guide post seat is fixed on one side of the upper end of the shell of the lifter, a guide post hole which is vertically communicated is formed in the lifting platform, a vertical guide post is fixed on the guide post seat, and the guide post coaxially slides through the guide post hole.

Further, a drying inner cylinder is coaxially arranged inside the drying outer cylinder; the upper end of the drying inner cylinder is integrally connected with the cylinder top coaxially, and the outer diameter of the drying inner cylinder is smaller than the inner diameter of the thin-wall metal cylinder body; a cylindrical metal barrel accommodating cavity is formed between the drying inner barrel and the drying outer barrel, and a thin-walled metal barrel body coaxially covered in the drying outer barrel is coaxially arranged in the cylindrical metal barrel accommodating cavity; a gas passing interval is formed between the top end of a thin-wall metal barrel body in a metal barrel body accommodating cavity and the barrel top, an inner ring cylindrical cavity is formed between the outer wall of the drying inner barrel body and the inner wall of the thin-wall metal barrel body, an outer ring cylindrical cavity is formed between the outer wall of the thin-wall metal barrel body and the drying outer barrel body, and the top of the inner ring cylindrical cavity is communicated with the top of the outer ring cylindrical cavity through the gas passing interval; the lower part in the drying inner cylinder is integrally and coaxially provided with a gas isolation disc, the upper side of the gas isolation disc is a columnar gas pressure storage cavity, the lower side of the gas isolation disc is a disc-shaped gas transition cavity, the lower end of the drying inner cylinder is provided with a plurality of first gas leakage windows in a circumferential array in a hollow manner, and the disc-shaped gas transition cavity is communicated with the lower end of the inner ring column cavity through the first gas leakage windows; the lower end of the drying outer cylinder is provided with a plurality of second air leakage windows in a circumferential array in a hollow manner, and the second air leakage windows communicate the lower end of the outer cylindrical cavity with the external environment atmospheric pressure;

a communicating pipe is arranged on the gas isolation disc, the communicating pipe communicates the columnar gas pressure accumulation cavity with the disc-shaped gas transition cavity, a pressure reducing valve is arranged in the communicating pipe, and gas in the columnar gas pressure accumulation cavity flows into the disc-shaped gas transition cavity after being reduced in pressure by the pressure reducing valve in the communicating pipe;

the lifting ring is fixedly provided with an air pump, and the air outlet end of an output pipe of the air pump is communicated with the top of the columnar air pressure storage cavity; the output pipe is also provided with an air heater;

a spiral hollow window is spirally hollowed along the axis on the drying inner cylinder, a spiral flexible heat-resistant film is hermetically arranged on the spiral hollow window along the spiral extending direction, and the spiral hollow window is hermetically sealed and blocked by the spiral flexible heat-resistant film; when the pressure in the cylindrical gas pressure accumulation cavity is normal pressure, the spiral flexible heat-resistant film is a film with loose folds, when gas pressure higher than the atmospheric pressure exists in the cylindrical gas pressure accumulation cavity, the spiral flexible heat-resistant film with loose folds bulges outwards from the spiral hollow window under the gas pressure in the gas pressure accumulation cavity, and the spiral flexible heat-resistant film bulging outwards in the spiral hollow window can contact the inner wall of the thin-wall metal barrel body, so that the inner ring column cavity is divided into spiral gas heating channels by the spiral flexible heat-resistant film bulging outwards.

Furthermore, a scroll is coaxially arranged in the cylindrical gas pressure accumulation cavity, and a bearing seat at the axle center of the gas isolation disc is in running fit with the lower end of the scroll through a first sealing bearing; a bearing hole at the axis of the cylinder top is in running fit with the scroll through a second sealing bearing; a reel motor is fixed above the barrel top through a bracket and is in driving connection with the reel;

the reel is also fixedly connected with a plurality of transversely loose heat-resistant nylon pulling wires, and the tail ends of the nylon pulling wires are uniformly connected to the inner side surface of the spiral flexible heat-resistant film along a spiral path; when the cylindrical gas pressure storage cavity is normal pressure, the rotation of the scroll can enable the plurality of nylon traction wires to be wound on the scroll, so that each loose nylon traction wire is tightened, the tightened plurality of nylon traction wires can pull the spiral flexible heat-resistant film with loose folds inwards, and the spiral flexible heat-resistant film is forcibly folded inwards.

Further, the spiral flexible heat-resistant film is a polyimide film.

Further, the drying method of the rotary type high-efficiency printing and drying system comprises the following steps:

the method comprises the following steps:

printing, spraying or brushing a preset pattern on the outer side surface of the thin-wall metal barrel by using ink printing equipment, paint spraying equipment or water-based paint brushing equipment to form the preset pattern on the outer wall of the thin-wall metal barrel, so that printing ink, paint or water-based paint waiting for quick drying is adhered to the outer side surface of the thin-wall metal barrel;

step two, the mechanical arm drives the clamping device to enable the two clamping devices to simultaneously extend downwards into the barrel of the thin-wall metal barrel body to be dried, and the two clamping devices are mutually far away from each other to clamp the inner wall of the thin-wall metal barrel body; then the mechanical arm drives the clamp to transfer and place the clamped thin-wall metal barrel on a circular groove on the rotary drying platform;

step three, controlling a lifter to enable the lifting platform and the drying outer cylinder to synchronously ascend until the drying outer cylinder is higher than a thin-wall metal barrel body waiting for drying on the rotary drying platform, meanwhile, controlling a scroll motor to enable a scroll to rotate clockwise for a certain angle, enabling a plurality of nylon traction lines to be slowly wound on the scroll, and then enabling the plurality of nylon traction lines to be slowly wound on the scroll to tighten each loose nylon traction line, wherein the plurality of tightened nylon traction lines pull the loosely folded spiral flexible heat-resistant film inwards, so that the spiral flexible heat-resistant film is forcibly folded inwards, the spiral flexible heat-resistant film is prevented from being folded outwards, and the problem that when the drying inner cylinder descends in the subsequent step, the outwardly folded spiral flexible heat-resistant film and the thin-wall metal barrel body are subjected to frictional wear is further solved;

fourthly, the rotary motor controls and controls the rotary drying platform to rotate, and further drives the thin-wall metal barrel body waiting for drying on the rotary drying platform to rotate along the axis of the rotary drying platform until the thin-wall metal barrel body waiting for drying on the rotary drying platform moves to be coaxial with the right lower part of the drying outer barrel;

controlling the lifter to enable the drying outer barrel and the drying inner barrel inside to descend synchronously, wherein the spiral flexible heat-resistant film is forcibly folded inwards at this time, so that the spiral flexible heat-resistant film does not contact the inner wall of the thin-wall metal barrel body in the descending process of the drying inner barrel, and the spiral flexible heat-resistant film is not abraded;

until the downward displacement of the drying outer cylinder is completely and coaxially arranged outside the thin-wall metal barrel body in a covering manner, the thin-wall metal barrel body to be dried and arranged in the drying outer cylinder in a covering manner is coaxially arranged in the annular cylindrical metal barrel body accommodating cavity, an air passing interval is formed between the top end of the thin-wall metal barrel body in the metal barrel body accommodating cavity and the barrel top, an inner annular column cavity is formed between the outer wall of the drying inner cylinder and the inner wall of the thin-wall metal barrel body, an outer annular column cavity is formed between the outer wall of the thin-wall metal barrel body and the drying outer cylinder, and the top of the inner annular column cavity is communicated with the top of the outer annular column;

step six, controlling a reel motor to enable a reel to rotate anticlockwise for a certain angle, and enabling a plurality of nylon pulling wires to be restored to the original loose state again, so that the constraint of the nylon pulling wires on the spiral flexible heat-resistant film is relieved;

step seven, starting the air pump and the air heater, continuously heating the air passing through the output pipe to 120-200 ℃ by the air heater, starting the air pump to continuously guide the ambient air into the top of the columnar gas pressure storage cavity through the output pipe in a positive pressure mode, so that the high-temperature hot air with the temperature of 120 ℃ to 200 ℃ is continuously introduced into the columnar gas pressure accumulation cavity, so that the air pressure in the gas pressure accumulation cavity is rapidly higher than the atmospheric pressure, meanwhile, the air pressure in the inner ring column cavity is always lower than that of the columnar gas pressure accumulation cavity due to the existence of the pressure reducing valve, under the action of pressure difference, the loosely folded spiral flexible heat-resistant film bulges outwards from the spiral hollow window under the gas pressure in the gas pressure accumulation cavity, the spiral flexible heat-resistant film bulging outwards in the spiral hollow window contacts the inner wall of the thin-wall metal barrel body, so that the spiral flexible heat-resistant film which bulges outwards divides the inner ring column cavity into spiral gas heating channels;

at this time, the flow path of the high-temperature hot air of 120 ℃ to 200 ℃ is → the columnar gas pressure accumulation cavity → the pressure reducing valve → the disk-shaped gas transition cavity → several first gas leakage windows → the spiral gas heating channel divided by the inner ring column cavity by the spiral flexible heat-resistant film → the gas passing space → the outer ring column cavity → the second gas leakage window → the external environment;

in the process, the inner wall of the thin-wall metal barrel body continuously absorbs the heat of the gas in the spiral gas heating channel, so that the inner wall of the thin-wall metal barrel body is gradually heated, the heat of the thin-wall metal barrel body is transferred to the outer wall surface of the thin-wall metal barrel body under the action of metal heat conduction, the temperature of the printing ink, paint or water-based paint adhered to the outer wall surface of the thin-wall metal barrel body and waiting for quick drying is increased, the volatilization efficiency of the printing ink, paint or water-based paint adhered to the outer wall surface of the thin-wall metal barrel body and waiting for quick drying is promoted, meanwhile, the volatile matters generated on the outer wall of the thin-wall metal barrel body are taken away in real time in the process that the hot air continuously flows through the outer ring column cavity downwards, and after the preset time is continuously carried out, the printing ink, paint or water-based on, The paint or aqueous paint has been substantially baked;

step eight, the air heater and the air pump are closed, then the columnar air pressure storage cavity is recovered to normal pressure, at the moment, the scroll motor is controlled to enable the scroll to rotate clockwise for a certain angle, the nylon traction wires are slowly wound on the scroll again, the nylon traction wires are slowly wound on the scroll and then enable the loose nylon traction wires to be tightened again, the tightened nylon traction wires pull the spiral flexible heat-resistant film inwards, and therefore the spiral flexible heat-resistant film is forcibly folded inwards, and the spiral flexible heat-resistant film is separated from the inner wall of the thin-wall metal barrel body;

step nine, controlling a lifter to enable the drying outer barrel and the drying inner barrel inside to ascend synchronously, and separating the thin-wall metal barrel body which is primarily dried from the drying outer barrel and the drying inner barrel inside; at the moment, the thin-wall metal barrel body has certain residual heat, and the residual heat is enough to thoroughly dry the printing ink, paint or water-based paint on the outer wall of the thin-wall metal barrel body;

and step ten, rotating the rotary drying platform for a certain angle, then controlling the mechanical arm, and taking the dried thin-wall metal barrel body on the rotary drying platform away by the clamping device according to the method in the step two.

Has the advantages that: in the process that the 120-200 ℃ high-temperature hot air is divided into the spiral gas heating channel by the spiral flexible heat-resistant film, the inner wall of the thin-wall metal barrel can continuously absorb the heat of gas in the spiral gas heating channel, so that the temperature of the inner wall of the thin-wall metal barrel is gradually increased, the heat of the thin-wall metal barrel can be transmitted to the outer wall surface of the thin-wall metal barrel under the action of metal heat conduction, and the temperature of printing ink, paint or water-based paint which is adhered to the outer wall surface of the thin-wall metal barrel and waits for quick drying is increased, so that the volatilization efficiency of the printing ink, paint or water-based paint which is adhered to the outer wall surface of the thin-wall metal.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a first perspective view of the apparatus (the drying outer drum is moved downward to a state completely coaxially covering the outer side of the corresponding thin-walled metal drum);

FIG. 3 is a second perspective view of the apparatus (a view showing the drying outer drum being located right above the corresponding thin-walled metal drum);

FIG. 4 is an enlarged schematic view of the robotic arm of FIG. 3;

FIG. 5 is a schematic structural view of a drying unit;

FIG. 6 is a sectional view of the drying outer cylinder and the drying inner cylinder in a state of being positioned right above the corresponding thin-wall metal barrel bodies;

FIG. 7 is a sectional view of the drying outer cylinder moving downward to completely cover the outer side of the corresponding thin-wall metal cylinder coaxially;

FIG. 8 is a schematic view of a loosely pleated spiral flexible heat resistant film bulging outward from a spiral hollow window under gas pressure in a gas accumulator chamber;

FIG. 9 is a second cross-sectional view of FIG. 7;

FIG. 10 is a schematic view of the drying outer drum and the thin-wall metal drum in FIG. 6;

fig. 11 is a cut-away schematic view of fig. 10.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The rotary efficient printing and drying system shown in the attached fig. 1 to 11 comprises an equipment base 13, wherein a vertical rotary motor 12 is fixedly installed on the equipment base 13, and a rotary output shaft 11 of the rotary motor 12 is coaxially connected with a horizontal disc-shaped rotary drying platform 10; the rotary output shaft 11 can drive the rotary drying platform 10 to rotate along the axis; a plurality of circular grooves 25 are distributed on the contour edge of the upper surface of the rotary drying platform 10 in a circumferential array;

the drying device also comprises a thin-wall metal barrel body 15 with printing ink, paint or water-based paint adhered to the outer side surface, wherein the barrel body bottoms 26 of the thin-wall metal barrel bodies 15 are respectively placed in the circular grooves 25 in a limiting manner;

the drying device further comprises a drying unit, wherein the rotation energy of the rotation output shaft 11 drives any one thin-wall metal barrel body 15 placed on the rotation drying platform 10 to correspond to the drying unit, and the drying unit can dry printing ink, paint or water-based paint adhered to the outer side surface of the corresponding thin-wall metal barrel body 15.

As shown in fig. 4, the execution end of the mechanical arm 3 is provided with a gripper 23, the gripper 23 is provided with two downwardly extending gripping blocks 24, and the two gripping blocks 24 can move towards or away from each other; the mechanical arm 3 can drive the clamping device 23 to enable the two clamping blocks 24 to simultaneously extend downwards into the barrel 22 of the thin-wall metal barrel body 15, and the two clamping blocks 24 can be far away from each other to clamp the inner wall of the thin-wall metal barrel body 15; thereby realizing the clamping, transferring and releasing of the thin-wall metal barrel body 15.

The drying unit comprises a vertical lifter 8, a lifting platform 4 is fixed at the upper end of a lifting rod 7 of the lifter 8, one side of the lifting platform 4 is fixedly connected with a horizontal lifting ring 14 through a lifting wall 5, the inner ring of the lifting ring 14 is integrally connected with a vertical drying outer barrel 30 with the same axle center, and the inner diameter of the drying outer barrel 30 is larger than the outer diameter of a thin-wall metal barrel body 15; the top of the drying outer cylinder 30 is integrally provided with a cylinder top 27; the rotary energy of the rotary output shaft 11 drives any one thin-wall metal barrel body 15 placed on the rotary drying platform 10 to coaxially correspond to the right lower part of the drying outer barrel 30, and the downward displacement of the drying outer barrel 30 can be completely coaxially covered on the outer side of the corresponding thin-wall metal barrel body 15.

A guide pillar seat 9 is fixed on one side of the upper end of a machine shell of the lifter 8, a vertical through guide pillar hole 1 is formed in the lifting platform 4, a vertical guide pillar 2 is fixed on the guide pillar seat 9, and the guide pillar 2 coaxially slides through the guide pillar hole 1.

A drying inner cylinder 29 is coaxially arranged inside the drying outer cylinder 30; the upper end of the drying inner cylinder 29 is integrally connected with the cylinder top 27 coaxially, and the outer diameter of the drying inner cylinder 29 is smaller than the inner diameter of the thin-wall metal cylinder body 15; an annular cylindrical metal barrel accommodating cavity 31 is formed between the drying inner barrel 29 and the drying outer barrel 30, and the thin-walled metal barrel body 15 coaxially covered in the drying outer barrel 30 is coaxially arranged in the annular cylindrical metal barrel accommodating cavity 31, as shown in FIG. 7; an air passing interval 45 is formed between the top end of the thin-wall metal barrel body 15 in the metal barrel body accommodating cavity 31 and the barrel top 27, an inner ring cylindrical cavity 47 is formed between the outer wall of the drying inner barrel 29 and the inner wall of the thin-wall metal barrel body 15, an outer ring cylindrical cavity 46 is formed between the outer wall of the thin-wall metal barrel body 15 and the drying outer barrel 30, and the top of the inner ring cylindrical cavity 47 is communicated with the top of the outer ring cylindrical cavity 46 through the air passing interval 45; the lower part in the drying inner cylinder 29 is integrally and coaxially provided with a gas isolation disc 39, the upper side of the gas isolation disc 39 is a columnar gas pressure storage cavity 35, the lower side of the gas isolation disc 39 is a disc-shaped gas transition cavity 48, the lower end of the drying inner cylinder 29 is provided with a plurality of first gas leakage windows 44 in a circumferential array in a hollow manner, and the disc-shaped gas transition cavity 48 is communicated with the lower end of an inner ring column cavity 47 through the first gas leakage windows 44; the lower end of the drying outer cylinder 30 is provided with a plurality of second air leakage windows 43 in a circumferential array in a hollow manner, and the lower end of the outer cylindrical cavity 46 is communicated with the external environment atmospheric pressure through the plurality of second air leakage windows 43;

the gas isolation disc 39 is provided with a communicating pipe 32, the communicating pipe 32 communicates the columnar gas pressure accumulation cavity 35 with the disc-shaped gas transition cavity 48, a pressure reducing valve 40 is arranged in the communicating pipe 32, and gas in the columnar gas pressure accumulation cavity 35 flows into the disc-shaped gas transition cavity 48 after being reduced in pressure through the pressure reducing valve 40 in the communicating pipe 32;

the lifting ring 14 is fixedly provided with an air pump 20, and the air outlet end of the output pipe 18 of the air pump 20 is communicated with the top of the columnar air pressure storage cavity 35; the output pipe 18 is also provided with an air heater 19;

a spiral hollow window 41 is spirally and hollowly arranged on the drying inner cylinder 29 along the axis, a spiral flexible heat-resistant film 36 is hermetically arranged on the spiral hollow window 41 along the spiral extending direction, and the spiral hollow window 41 is hermetically sealed and blocked by the spiral flexible heat-resistant film 36; when the pressure in the cylindrical gas pressure storage cavity 35 is normal pressure, the spiral flexible heat-resistant film 36 is a film with loose folds, and when gas pressure higher than atmospheric pressure exists in the cylindrical gas pressure storage cavity 35, the spiral flexible heat-resistant film 36 with loose folds bulges outwards from the spiral hollow window 41 under the gas pressure in the gas pressure storage cavity 35 (as shown in fig. 8), and the spiral flexible heat-resistant film 36 bulging outwards in the spiral hollow window 41 contacts with the inner wall of the thin-wall metal barrel body 15, so that the inner annular cylinder cavity 47 is divided into spiral gas heating channels 47.1 by the spiral flexible heat-resistant film 36 bulging outwards.

A scroll 21 is coaxially arranged in the columnar gas pressure storage cavity 35, and a bearing seat 33 at the axis of the gas isolation disc 39 is in running fit with the lower end of the scroll 21 through a first sealing bearing 34; a bearing hole at the axle center of the cylinder top 27 is in running fit with the scroll 21 through a second sealing bearing 28; a reel motor 17 is fixed above the cylinder top 27 through a bracket 16, and the reel motor 17 is in driving connection with the reel 21;

the scroll 21 is also fixedly connected with a plurality of transversely loose heat-resistant nylon pulling wires 37, and the tail ends of the nylon pulling wires 37 are uniformly connected to the inner side surface of the spiral flexible heat-resistant film 36 along a spiral path; when the cylindrical gas pressure accumulation chamber 35 is at normal pressure, the rotation of the reel 21 can wind the plurality of nylon pulling wires 37 around the reel 21, so that the plurality of loose nylon pulling wires 37 are tightened, and the plurality of tightened nylon pulling wires 37 can pull the loosely folded spiral flexible heat-resistant film 36 inward, so that the spiral flexible heat-resistant film 36 is forcibly folded inward, as shown in the state of fig. 6 and 7.

The spiral flexible heat-resistant film 36 of the present embodiment is a polyimide film.

The drying method of the rotary high-efficiency printing and drying system comprises the following steps:

printing, spraying or brushing a reserved pattern on the outer side surface of the thin-wall metal barrel body 15 by using ink printing equipment, paint spraying equipment or water-based paint brushing equipment to form the preset pattern on the outer wall of the thin-wall metal barrel body 15, so that printing ink, paint or water-based paint waiting for quick drying is adhered to the outer side surface of the thin-wall metal barrel body 15;

step two, the mechanical arm 3 drives the clamping device 23 to enable the two clamping blocks 24 to simultaneously extend downwards into the barrel 22 of the thin-wall metal barrel body 15 to be dried, and the two clamping blocks 24 are mutually far away from each other to clamp the inner wall of the thin-wall metal barrel body 15; further clamping the thin-wall metal barrel body 15 to be dried, and then driving the clamp 23 by the mechanical arm 3 to transfer and place the clamped thin-wall metal barrel body 15 on the circular groove 25 on the rotary drying platform 10;

step three, controlling the lifter 8 to enable the lifting platform 4 and the drying outer cylinder 30 to synchronously ascend until the drying outer cylinder 30 is higher than the thin-wall metal cylinder body 15 waiting for drying on the rotary drying platform 10, meanwhile, the reel motor 17 is controlled to rotate the reel 21 clockwise by a certain angle, so that the nylon pulling wires 37 are slowly wound on the reel 21, the nylon pulling wires 37 are slowly wound on the reel 21 to tighten the loose nylon pulling wires 37, the tightened nylon pulling wires 37 pull the loosely folded spiral flexible heat-resistant film 36 inwards, thereby forcing the helical flexible heat resistant film 36 to fold inwardly (see fig. 6), avoiding the helical flexible heat resistant film 36 from folding outwardly, further avoiding the problem that the outward-folded spiral flexible heat-resistant film 36 and the thin-wall metal barrel body 15 are abraded due to friction when the drying inner barrel 29 descends in the subsequent step;

fourthly, the rotary motor 12 controls the rotary drying platform 10 to rotate, and further drives the thin-wall metal barrel body 15 waiting for drying on the rotary drying platform 10 to rotate along the axis of the rotary drying platform 10 until the thin-wall metal barrel body 15 waiting for drying on the rotary drying platform 10 moves to be coaxial with the right lower part of the drying outer barrel 30; as shown in fig. 6

Step five, controlling the lifter 8 to synchronously lower the drying outer cylinder 30 and the drying inner cylinder 29 inside, wherein the spiral flexible heat-resistant film 36 is forcibly folded inwards at this time, so that the spiral flexible heat-resistant film 36 does not contact the inner wall of the thin-wall metal barrel body 15 in the lowering process of the drying inner cylinder 29, and the spiral flexible heat-resistant film 36 is not abraded;

until the drying outer cylinder 30 moves downwards to be completely coaxially covered on the outer side of the thin-wall metal cylinder body 15, the thin-wall metal cylinder body 15 to be dried which is coaxially covered inside the drying outer cylinder 30 is coaxially arranged in the annular cylindrical metal cylinder body accommodating cavity 31, at this time, an air passing interval 45 is formed between the top end of the thin-wall metal cylinder body 15 in the metal cylinder body accommodating cavity 31 and the cylinder top 27, an inner annular cylinder cavity 47 is formed between the outer wall of the drying inner cylinder 29 and the inner wall of the thin-wall metal cylinder body 15, an outer annular cylinder cavity 46 is formed between the outer wall of the thin-wall metal cylinder body 15 and the drying outer cylinder 30, and the top of the inner annular cylinder cavity 47 is communicated with the top of the outer annular cylinder cavity 46 through the air;

step six, controlling the reel motor 17 to enable the reel 21 to rotate anticlockwise for a certain angle, and enabling the nylon pulling wires 37 to be restored to the original loose state again, so that the constraint of the nylon pulling wires 37 on the spiral flexible heat-resistant film 36 is relieved;

step seven, starting the air pump 20 and the air heater 19, continuously heating the air passing through the output pipe 18 by the air heater 19 to 120 ℃ to 200 ℃, continuously introducing the ambient air into the top of the columnar air pressure storage chamber 35 through the output pipe 18 in a positive pressure manner by the air pump 20 so as to continuously introduce the high-temperature hot air of 120 ℃ to 200 ℃ into the columnar air pressure storage chamber 35, rapidly increasing the air pressure in the air pressure storage chamber 35 to atmospheric pressure, meanwhile, because of the existence of the pressure reducing valve 40, the air pressure in the inner columnar chamber 47 is always lower than that of the columnar air pressure storage chamber 35, under the action of pressure difference, the loosely folded spiral flexible heat-resistant film 36 bulges outwards from the spiral hollow window 41 under the air pressure in the air pressure storage chamber 35 (as shown in fig. 8), and the spiral flexible heat-resistant film 36 bulging outwards in the spiral hollow window 41 contacts the inner wall of the thin-wall metal barrel body 15, so that the outwardly bulging helical flexible heat resistant film 36 divides the inner annular cylinder chamber 47 into helical gas heating channels 47.1;

at this time, the flow path of the high-temperature hot air of 120 ℃ to 200 ℃ is → the columnar gas pressure accumulation chamber 35 → the pressure reducing valve 40 → the disk-shaped gas transition chamber 48 → the first gas leakage windows 44 → the spiral gas heating passage 47.1 into which the inner ring column chamber 47 is divided by the spiral flexible heat-resistant film 36 → the gas passing pitch 45 → the outer ring column chamber 46 → the second gas leakage window 43 → the external environment;

when the high-temperature hot air at 120 ℃ to 200 ℃ passes through the spiral gas heating channel 47.1 divided by the spiral flexible heat-resistant film 36, the inner wall of the thin-wall metal barrel body 15 continuously absorbs the heat of the gas in the spiral gas heating channel 47.1, so that the inner wall of the thin-wall metal barrel body 15 is gradually heated, the heat of the thin-wall metal barrel body 15 is transferred to the outer wall surface of the thin-wall metal barrel body 15 under the action of metal heat conduction, so that the temperature of the printing ink, paint or water-based paint adhered to the outer wall surface of the thin-wall metal barrel body 15 and waiting for quick drying is increased, the volatilization efficiency of the printing ink, paint or water-based paint adhered to the outer wall surface of the thin-wall metal barrel body 15 is promoted, meanwhile, the volatile matter generated by the outer wall of the thin-wall metal barrel body 15 is taken away in real time in the process that the hot air continuously flows downwards through the outer cylindrical cavity, The paint or aqueous paint has been substantially baked;

step eight, the air heater 19 and the air pump 20 are closed, then the columnar gas pressure storage cavity 35 is restored to normal pressure, at this time, the reel motor 17 is controlled to enable the reel 21 to rotate clockwise for a certain angle, the nylon traction wires 37 are slowly wound on the reel 21 again, the nylon traction wires 37 are slowly wound on the reel 21 and then enable the loose nylon traction wires 37 to be tightened again, the tightened nylon traction wires 37 pull the spiral flexible heat-resistant film 36 inwards, and therefore the spiral flexible heat-resistant film 36 is forcibly folded inwards, and the spiral flexible heat-resistant film 36 is separated from the inner wall of the thin-wall metal barrel body 15;

step nine, controlling the lifter 8 to enable the drying outer cylinder 30 and the internal drying inner cylinder 29 to ascend synchronously, and enabling the thin-wall metal barrel body 15 which is primarily dried to be separated from the drying outer cylinder 30 and the internal drying inner cylinder 29; at the moment, the thin-wall metal barrel body 15 has certain residual heat, and the residual heat is enough to thoroughly dry the printing ink, paint or water-based paint on the outer wall of the thin-wall metal barrel body;

step ten, the rotary drying platform 10 is rotated for a certain angle, then the mechanical arm 3 is controlled, and the gripper 23 takes away the thin-wall metal barrel body 15 which is dried on the rotary drying platform 10 according to the method in the step two.

The thin wall referred to in this embodiment refers to a wall with a thickness of less than 3mm, and the above is only a preferred embodiment of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.

Claims

1. High-efficient printing drying system of rotation, its characterized in that: the drying device comprises an equipment base (13), wherein a vertical rotary motor (12) is fixedly installed on the equipment base (13), and a rotary output shaft (11) of the rotary motor (12) is coaxially connected with a horizontal disc-shaped rotary drying platform (10); the rotary output shaft (11) can drive the rotary drying platform (10) to rotate along the axis; a plurality of circular grooves (25) are distributed on the contour edge of the upper surface of the rotary drying platform (10) in a circumferential array;

the drying device also comprises thin-wall metal barrel bodies (15) with printing ink, paint or water-based paint adhered to the outer side surfaces, wherein the printing ink, the paint or the water-based paint is to be dried, and the barrel body bottoms (26) of the thin-wall metal barrel bodies (15) are respectively placed in the circular grooves (25) in a limiting manner;

the drying device is characterized by further comprising a drying unit, wherein the rotary energy of the rotary output shaft (11) drives any thin-wall metal barrel body (15) placed on the rotary drying platform (10) to correspond to the drying unit, and the drying unit can dry printing ink, paint or water-based paint adhered to the outer side surface of the corresponding thin-wall metal barrel body (15).

2. The rotary high-efficiency printing and drying system as claimed in claim 1, wherein: the clamp device is characterized in that a clamp device (23) is arranged at the execution tail end of the mechanical arm (3), the clamp device (23) is provided with two clamping blocks (24) extending downwards, and the two clamping blocks (24) can move towards or away from each other; the mechanical arm (3) can drive the clamping device (23) to enable the two clamping blocks (24) to simultaneously extend downwards into the barrel (22) of the thin-wall metal barrel body (15), and the two clamping blocks (24) can be far away from each other to clamp the inner wall of the thin-wall metal barrel body (15); thereby realizing the clamping, transferring and releasing of the thin-wall metal barrel body (15).

3. The rotary high-efficiency printing and drying system as claimed in claim 1, wherein: the drying unit comprises a vertical lifter (8), a lifting platform (4) is fixed at the upper end of a lifting rod (7) of the lifter (8), a horizontal lifting ring (14) is fixedly connected to one side of the lifting platform (4) through a lifting wall (5), a vertical drying outer barrel (30) is integrally connected to the inner ring of the lifting ring (14) coaxially, and the inner diameter of the drying outer barrel (30) is larger than the outer diameter of the thin-wall metal barrel body (15); the top of the drying outer cylinder (30) is integrally provided with a cylinder top (27); the rotary energy of the rotary output shaft (11) drives any one thin-wall metal barrel body (15) placed on the rotary drying platform (10) to correspond to the right lower side of the drying outer barrel (30) with the same axis, and the downward displacement of the drying outer barrel (30) can be completely covered on the outer side of the corresponding thin-wall metal barrel body (15) with the same axis.

4. The rotary high-efficiency printing and drying system as claimed in claim 3, wherein: a guide post seat (9) is fixed on one side of the upper end of a machine shell of the lifter (8), a vertical through guide post hole (1) is formed in the lifting platform (4), a vertical guide post (2) is fixed on the guide post seat (9), and the guide post (2) penetrates through the guide post hole (1) in a coaxial sliding mode.

5. The rotary high-efficiency printing and drying system as claimed in claim 4, wherein: a drying inner cylinder (29) is coaxially arranged inside the drying outer cylinder (30); the upper end of the drying inner cylinder (29) is integrally connected with a cylinder top (27) coaxially, and the outer diameter of the drying inner cylinder (29) is smaller than the inner diameter of the thin-wall metal cylinder body (15); a cylindrical metal barrel accommodating cavity (31) is formed between the drying inner barrel (29) and the drying outer barrel (30), and a thin-wall metal barrel body (15) which is coaxially covered in the drying outer barrel (30) is coaxially arranged in the cylindrical metal barrel accommodating cavity (31); a gas passing interval (45) is formed between the top end of the thin-wall metal barrel body (15) in the metal barrel body accommodating cavity (31) and the barrel top (27), an inner ring cylindrical cavity (47) is formed between the outer wall of the drying inner barrel (29) and the inner wall of the thin-wall metal barrel body (15), an outer ring cylindrical cavity (46) is formed between the outer wall of the thin-wall metal barrel body (15) and the drying outer barrel (30), and the top of the inner ring cylindrical cavity (47) is communicated with the top of the outer ring cylindrical cavity (46) through the gas passing interval (45); a gas isolation disc (39) is integrally and coaxially arranged at the lower part in the drying inner cylinder (29), a columnar gas pressure storage cavity (35) is formed in the upper side of the gas isolation disc (39), a disc-shaped gas transition cavity (48) is formed in the lower side of the gas isolation disc (39), a plurality of first gas leakage windows (44) are arranged at the lower end of the drying inner cylinder (29) in a circumferential array in a hollowed mode, and the disc-shaped gas transition cavity (48) is communicated with the lower end of the inner ring column cavity (47) through the first gas leakage windows (44); the lower end of the drying outer cylinder (30) is provided with a plurality of second air leakage windows (43) in a circumferential array in a hollow manner, and the second air leakage windows (43) communicate the lower end of the outer cylindrical cavity (46) with the atmospheric pressure of the external environment;

a communicating pipe (32) is arranged on the gas isolation disc (39), the communicating pipe (32) communicates the columnar gas pressure accumulation cavity (35) with the disc-shaped gas transition cavity (48), a pressure reducing valve (40) is arranged in the communicating pipe (32), and gas in the columnar gas pressure accumulation cavity (35) flows into the disc-shaped gas transition cavity (48) after being reduced in pressure through the pressure reducing valve (40) in the communicating pipe (32);

an air pump (20) is fixedly arranged on the lifting ring (14), and the air outlet end of an output pipe (18) of the air pump (20) is communicated with the top of the columnar air pressure storage cavity (35); an air heater (19) is also arranged on the output pipe (18);

a spiral hollow window (41) is spirally and hollowly arranged on the drying inner barrel (29) along the axis, a spiral flexible heat-resistant film (36) is hermetically arranged on the spiral hollow window (41) along the spiral extending direction, and the spiral hollow window (41) is hermetically sealed and blocked by the spiral flexible heat-resistant film (36); when the pressure in the cylindrical gas pressure storage cavity (35) is normal pressure, the spiral flexible heat-resistant film (36) is a film with loose folds, when gas pressure higher than the atmospheric pressure exists in the cylindrical gas pressure storage cavity (35), the spiral flexible heat-resistant film (36) with loose folds bulges outwards from the spiral hollow window (41) under the gas pressure in the gas pressure storage cavity (35), and the spiral flexible heat-resistant film (36) bulging outwards in the spiral hollow window (41) can contact the inner wall of the thin-wall metal barrel body (15), so that the spiral flexible heat-resistant film (36) bulging outwards divides the inner annular cylindrical cavity (47) into spiral gas heating channels (47.1).

6. The rotary high-efficiency printing and drying system as claimed in claim 5, wherein: a scroll (21) is coaxially arranged in the columnar gas pressure accumulation cavity (35), and a bearing seat (33) at the axis of the gas isolation disc (39) is in running fit with the lower end of the scroll (21) through a first sealing bearing (34); a bearing hole at the axle center of the cylinder top (27) is in running fit with the scroll (21) through a second sealing bearing (28); a reel motor (17) is further fixed above the barrel top (27) through a support (16), and the reel motor (17) is in driving connection with the reel (21);

the reel (21) is also fixedly connected with a plurality of transversely loose heat-resistant nylon pulling wires (37), and the tail ends of the nylon pulling wires (37) are uniformly connected to the inner side surface of the spiral flexible heat-resistant film (36) along a spiral path; when the columnar gas pressure accumulation cavity (35) is at normal pressure, the rotation of the scroll (21) can enable the nylon pulling wires (37) to be wound on the scroll (21), so that each loose nylon pulling wire (37) is tightened, the tightened nylon pulling wires (37) can pull the loosely folded spiral flexible heat-resistant film (36) inwards, and the spiral flexible heat-resistant film (36) is forcibly folded inwards.

7. The rotary high-efficiency printing and drying system as claimed in claim 6, wherein: the spiral flexible heat-resistant film (36) is a polyimide film.

8. The drying method of the rotary high-efficiency printing and drying system of claim 7, wherein: the method comprises the following steps:

printing, spraying or painting a reserved pattern on the outer side surface of the thin-wall metal barrel body (15) by using ink printing equipment, paint spraying equipment or water-based paint painting equipment to enable the outer wall of the thin-wall metal barrel body (15) to form a preset pattern, so that printing ink, paint or water-based paint waiting for quick drying is adhered to the outer side surface of the thin-wall metal barrel body (15);

step two, the mechanical arm (3) drives the clamping device (23) to enable the two clamping blocks (24) to simultaneously extend downwards into the barrel (22) of the thin-wall metal barrel body (15) to be dried, and the two clamping blocks (24) are mutually far away from each other to clamp the inner wall of the thin-wall metal barrel body (15); further realizing the clamping of the thin-wall metal barrel body (15) to be dried, and then driving the clamp holder (23) by the mechanical arm (3) to transfer and place the clamped thin-wall metal barrel body (15) at the circular groove (25) on the rotary drying platform (10);

step three, controlling a lifter (8) to enable the lifting platform (4) and the drying outer cylinder (30) to synchronously ascend until the drying outer cylinder (30) is higher than a thin-wall metal barrel body (15) waiting for drying on the rotary drying platform (10), meanwhile, controlling a scroll motor (17) to enable a scroll (21) to clockwise rotate for a certain angle, enabling a plurality of nylon pulling wires (37) to be slowly wound on the scroll (21), slowly winding a plurality of nylon pulling wires (37) on the scroll (21) to tighten each loosened nylon pulling wire (37), pulling the loosened and wrinkled spiral flexible heat-resistant film (36) inwards by the tightened plurality of nylon pulling wires (37), forcibly enabling the spiral flexible heat-resistant film (36) to be wrinkled inwards, avoiding the spiral flexible heat-resistant film (36) from being wrinkled outwards, and further avoiding the situation that the drying inner cylinder (29) descends in the subsequent step, the problem of frictional wear between the spiral flexible heat-resistant film (36) which is folded outwards and the thin-wall metal barrel body (15) occurs;

fourthly, the rotary motor (12) controls the rotary drying platform (10) to rotate, and further drives the thin-wall metal barrel body (15) waiting for drying on the rotary drying platform (10) to rotate along the axis of the rotary drying platform (10) until the thin-wall metal barrel body (15) waiting for drying on the rotary drying platform (10) moves to the position which is coaxial with the right lower part of the drying outer barrel (30);

controlling the lifter (8) to synchronously lower the drying outer cylinder (30) and the drying inner cylinder (29) inside, wherein the spiral flexible heat-resistant film (36) is forcibly folded inwards at this time, so that the spiral flexible heat-resistant film (36) cannot contact the inner wall of the thin-wall metal barrel body (15) in the descending process of the drying inner cylinder (29), and the spiral flexible heat-resistant film (36) cannot be abraded;

until the drying outer cylinder (30) moves downwards to be completely coaxially covered on the outer side of the thin-wall metal cylinder body (15), the thin-wall metal cylinder body (15) to be dried which is coaxially covered inside the drying outer cylinder (30) is coaxially arranged in the annular cylindrical metal cylinder body accommodating cavity (31), at the moment, a gas passing interval (45) is formed between the top end of the thin-wall metal cylinder body (15) in the metal cylinder body accommodating cavity (31) and the cylinder top (27), an inner annular cylinder cavity (47) is formed between the outer wall of the drying inner cylinder (29) and the inner wall of the thin-wall metal cylinder body (15), an outer annular cylinder cavity (46) is formed between the outer wall of the thin-wall metal cylinder body (15) and the drying outer cylinder body (30), and the top of the inner annular cylinder cavity (47) is communicated with the top of the outer annular cylinder cavity (46) through the gas passing;

sixthly, controlling a reel motor (17) to enable a reel (21) to rotate anticlockwise for a certain angle, and enabling a plurality of nylon pulling wires (37) to be restored to the original loose state again, so that the constraint of the nylon pulling wires (37) on the spiral flexible heat-resistant film (36) is relieved;

step seven, starting the air pump (20) and the air heater (19), continuously heating the air passing through the output pipe (18) by the air heater (19) to 120-200 ℃, continuously introducing the ambient air into the top of the columnar air pressure storage cavity (35) through the output pipe (18) in a positive pressure mode by the air pump (20), continuously introducing the high-temperature hot air of 120-200 ℃ into the columnar air pressure storage cavity (35), rapidly increasing the air pressure in the air pressure storage cavity (35) to be higher than the atmospheric pressure, simultaneously because of the existence of the reducing valve (40), the air pressure in the inner annular column cavity (47) is always lower than that of the columnar air pressure storage cavity (35), and under the action of pressure difference, the loose spiral flexible heat-resistant film (36) expands outwards from the spiral hollow window (41) under the air pressure in the air pressure storage cavity (35), the spiral flexible heat-resistant film (36) which bulges outwards in the spiral hollow window (41) contacts the inner wall of the thin-wall metal barrel body (15), so that the inner ring cylinder cavity (47) is divided into spiral gas heating channels (47.1) by the spiral flexible heat-resistant film (36) which bulges outwards;

at this time, the flow path of the high-temperature hot air of 120 ℃ to 200 ℃ is → a columnar gas pressure accumulation cavity (35) → a pressure reducing valve (40) → a disk-shaped gas transition cavity (48) → a plurality of first gas leakage windows (44) → a spiral gas heating passage (47.1) → a gas passing interval (45) → an outer annular column cavity (46) → a second gas leakage window (43) → an external environment, into which the inner annular column cavity (47) is divided by the spiral flexible heat-resistant film (36);

when high-temperature hot air at 120-200 ℃ passes through the spiral gas heating channel (47.1) divided by the spiral flexible heat-resistant film (36), the inner wall of the thin-wall metal barrel body (15) can continuously absorb the heat of the gas in the spiral gas heating channel (47.1), so that the inner wall of the thin-wall metal barrel body (15) is gradually heated, the heat of the thin-wall metal barrel body (15) is transferred to the outer wall surface of the thin-wall metal barrel body (15) under the action of metal heat conduction, so that the printing ink, paint or water-based paint adhered to the outer wall surface of the thin-wall metal barrel body (15) and waiting for quick drying is heated, the volatilization efficiency of the printing ink, paint or water-based paint adhered to the outer wall surface of the thin-wall metal barrel body (15) and waiting for quick drying is promoted, and meanwhile, volatile matters generated by the outer wall of the thin-wall metal barrel body (15) are taken away in real time in the process that, after the preset time is continued, the printing ink, paint or water-based paint on the outer wall surface of the thin-wall metal barrel body (15) is basically dried;

step eight, the air heater (19) and the air pump (20) are closed, then the columnar air pressure storage cavity (35) is recovered to normal pressure, at the moment, the scroll motor (17) is controlled to enable the scroll (21) to rotate clockwise for a certain angle, the nylon traction wires (37) are slowly wound on the scroll (21) again, the nylon traction wires (37) are slowly wound on the scroll (21) and then enable the loose nylon traction wires (37) to be tightened again, the tightened nylon traction wires (37) pull the spiral flexible heat-resistant film (36) inwards, and therefore the spiral flexible heat-resistant film (36) is forcibly folded inwards, and the spiral flexible heat-resistant film (36) is separated from the inner wall of the thin-wall metal barrel body (15);

step nine, controlling the lifter (8) to enable the drying outer cylinder (30) and the drying inner cylinder (29) inside to ascend synchronously, and enabling the thin-wall metal barrel body (15) which is dried preliminarily to be separated from the drying outer cylinder (30) and the drying inner cylinder (29) inside; at the moment, the thin-wall metal barrel body (15) has certain residual heat, and the residual heat is enough to thoroughly dry the printing ink, paint or water-based paint on the outer wall of the barrel body;

step ten, the rotary drying platform (10) is rotated for a certain angle, then the mechanical arm (3) is controlled, and the gripper (23) takes away the dried thin-wall metal barrel body (15) on the rotary drying platform (10) according to the method in the step two.