A linear heating and drying device and method for tipping paper printing

Abstract

The present invention discloses a linear heating and drying device and method for tipping paper printing, which relates to the technical field of tipping paper processing. In the present invention: a circle of heat-absorbing alloy plates is arranged at the bottom of the square air cylinder. A hot air outflow component is installed between the two square air cylinders in a guiding manner, and the output ends of the two square air cylinders are jointly connected to the end plastic box. The output end of the lifting mechanism faces downward and a magnet is installed at the output end. A magnetic attraction plate is embedded in the top side of the end plastic box at a position corresponding to the magnet, and a distance sensing module is installed at the output end of the lifting mechanism and is positioned opposite to the top side of the end plastic box. A plurality of sponge strips staggered with the diversion protrusions are arranged on the vertical baffle. Each air supply insertion tube is independently connected to an external hot air supply device. The present invention improves the heat utilization rate of tipping paper printing and drying, enables the tipping paper to be subjected to a more comprehensive and gentle heating and drying treatment, and reduces the negative impacts of factors such as hot air flow impact and excessive heat concentration during the drying process on the tipping paper.

Description

Technical Field

[0001] The present invention relates to the technical field of tipping paper processing, and particularly relates to a linear heating and drying device and method for tipping paper printing. Background Art

[0002] When printing tipping paper, the original paper reel is first delivered to the printing roller through a guiding roller. The printing plate rotates in the coating color paste tray, and the excess coating on the printing plate is scraped off by a doctor blade. After the coating on the printing plate is printed and transferred to the paper surface, the tipping paper then enters the drying section, and the first printing is completed. After the paper surface is dried, the second printing and drying are carried out.

[0003] When drying the tipping paper after printing, the tipping paper advances circuitously through the guiding rollers in the drying equipment. If a heating mechanism is directly installed in the drying equipment to dry the entire interior of the drying equipment, a large amount of heat will be wasted, resulting in low heat utilization rate. And when hot air flow is directly blown onto the surface of the tipping paper, it may cause "impact" on the surface printing raw materials that are not completely dry, and there may also be regionalization of the heating heat, resulting in excessive heat and temperature in some areas, which has an adverse effect on the printing surface of the tipping paper. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a linear heating and drying device and method for tipping paper printing, which improves the heat utilization rate of tipping paper printing and drying, enables the tipping paper to be heated and dried in a more comprehensive and gentle manner, and reduces the negative impacts of factors such as hot air flow impact and excessive heat concentration during the drying process on the tipping paper.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0006] The present invention provides a linear heating and drying device for tipping paper printing. A drying chamber is arranged inside the drying device. A number of guide rollers are arranged in the drying chamber. The tipping paper winds through a number of guide rollers. A number of groups of square air cylinders are fixedly installed between the two side walls of the drying chamber. A circle of heat-absorbing alloy plates is arranged at the bottom of the square air cylinders. The number of each group of square air cylinders is two. A hot air outflow component is installed between the two square air cylinders in a guiding manner. The output ends of the two square air cylinders are jointly connected to an end plastic box. A connecting air pipe is installed between the end plastic box and the installed hot air outflow component. A number of lifting mechanisms are installed inside the inner side of the top plate of the drying chamber. The output end of the lifting mechanism faces downward and a magnet is installed at the output end. A magnetic suction plate is embedded and installed on the top side of the end plastic box at a position corresponding to the magnet. A distance sensing module is installed at the output end of the lifting mechanism and faces the top side of the end plastic box. The hot air outflow component includes an air outlet box. The air outlet box is provided with a longitudinal ventilation groove communicated with the connecting air pipe. A number of strip-shaped air outlets communicated with the longitudinal ventilation groove are arranged on both sides of the air outlet box. Vertical baffles are fixedly connected to the outer peripheries of both sides of the air outlet box. The vertical baffles are provided with a number of flow dividing protrusions aligned with the positions of the strip-shaped air outlets. A number of sponge strips are arranged on the vertical baffles and are distributed in a staggered manner with the flow dividing protrusions. A number of air supply insertion pipes are installed inside the inner side of the top plate of the drying chamber. An air flow soft duct is arranged between the air supply insertion pipe and the end plastic box. Each air supply insertion pipe is independently connected to an external hot air supply device. The hot air supply device is provided with an electronically controlled linear valve for adjusting the air flow rate.

[0007] As a preferred technical solution of the drying device in the present invention: The square air cylinder includes a piston shaft rod. The upper end of the piston shaft rod is connected with a first mounting bracket. The end plastic box is fixedly installed at the position of the first mounting bracket.

[0008] As a preferred technical solution of the drying device in the present invention: The air outlet box is provided with a guiding notch. A number of groups of roller structures are arranged inside the guiding notch. The square air cylinder is slidably installed at the position of the guiding notch.

[0009] As a preferred technical solution of the drying device in the present invention: The vertical baffle is provided with a number of strip-shaped grooves distributed in a staggered manner with the distribution positions of the strip-shaped air outlets. The sponge strips are installed at the positions of the strip-shaped grooves. The cross section of the flow dividing protrusion is a triangular structure.

[0010] As a preferred technical solution of the drying device in the present invention: The lifting mechanism is provided with a downward lifting shaft rod. The magnet is installed at the lower end of the lifting shaft rod. The lifting shaft rod is fixedly connected with a connecting bracket. The distance sensing module is installed at the bottom end position of the connecting bracket. A plastic elastic sheet is installed on the upper side of the end plastic box and is located between the magnetic suction plate and the magnet.

[0011] As a preferred technical solution of the drying device in the present invention: The end plastic box is provided with an air pipe interface communicated with the connecting air pipe. The lower end of the air flow soft duct is connected to the position of the air pipe interface.

[0012] The present invention provides a linear heating and drying method for tipping paper, including the following:

[0013] ㈠ Self-weight offset regulation: When the square air cylinder is in a normal state, the lifting mechanism drives the magnet to approach the magnetic attraction plate of the end plastic box in a unit-distance moving manner, and the distance sensing module continuously detects the change of the distance parameter.

[0014] Every time the magnet moves a unit distance, the lifting mechanism pauses for a certain period of time, and the distance sensing module senses and detects the distance of the end plastic box during this period. ① If the distance sensing module senses that the distance remains unchanged, the lifting mechanism drives the magnet to move another unit distance. ② If the distance sensing module senses that the distance decreases, let the distance sensed by the distance sensing module before the distance decrease be H, let the unit distance that the lifting mechanism drives the magnet to move be Y, and the control system presets the grammage distance parameter D, D = H + 2Y.

[0015] ㈡ Position regulation of the hot air outlet gas component: When the drying device dries the tipping paper, the heat absorption alloy plate at the bottom of the square air cylinder absorbs the air heat in the lower area of the detour path of the tipping paper. The square air cylinder is heated to drive the piston rod to move, and the end plastic box and the hot air outlet gas component move up and down. During the up and down movement of the end plastic box, the distance sensing module continuously senses and detects the distance parameter from the end plastic box, denoted as Dx. ① When the distance parameter Dx > D, the lifting mechanism drives the magnet to approach the end plastic box until the distance parameter Dx = the grammage distance parameter D. ② When D - 2Y < the distance parameter Dx < D, the lifting mechanism drives the magnet away from the end plastic box until the distance parameter Dx = the grammage distance parameter D.

[0016] ㈢ Hot air flow regulation: The control system obtains the distance information of the lifting and moving of the magnet driven by the lifting mechanism. According to the distance of the magnet moving up and down, the control system linearly controls the air flow supplied by the hot air flow supply device to the air supply insertion tube through the electric control linear valve. Let the distance that the lifting mechanism drives the magnet to move downward be L, and the air flow supplied by the hot air flow supply device to the air supply insertion tube be Q, then there is an air flow Q ∝ distance L.

[0017] Compared with the existing technology, the beneficial effects of the present invention are:

[0018] 1. In the drying process of the tipping paper, the present invention fixedly installs multiple groups of square air cylinders. The movement of the piston rod of the square air cylinder reflects the heat change in the bottom area of the drying path, and at the same time drives the hot air outlet gas component to move up and down. When the heat in the bottom area of the drying path is less, the hot air outlet gas component "sinks" to pre-dry the "low position". When the heat in the bottom area of the drying path is more, the hot air outlet gas component rises to dry and heat the "high position". This not only avoids the heat of the hot air flow being overly concentrated in a certain area and causing certain damage to the tipping paper, but also realizes a relatively comprehensive hot air flow drying of the tipping paper in the detour path.

[0019] 2. The present invention provides a shunt projection facing the strip-shaped air outlet on the vertical baffle and a sponge strip, so that the blown hot air flow can be dispersed more evenly, and the direct impact of the air flow on the incompletely dried raw materials on the surface of the tipping paper is reduced under the action of the sponge strip, so that the tipping paper is subjected to a more comprehensive and gentle heating and drying treatment.

[0020] 3. The present invention drives the magnet to move up and down through the lifting mechanism, applies a magnetic attraction force to the magnetic attraction plate, and detects the distance between the magnet and the magnetic attraction plate through the distance sensing module, so as to adjust the weight (partial) offset operation of the magnet on components such as the hot air outlet assembly and the end plastic box during the movement, ensuring the driving effect of the outward output of the thermal change of the air pressure in the square air cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the drying device of the present invention.

[0022] Figure 2 is Figure 1 a partially enlarged schematic diagram of part A in

[0023] Figure 3 is Figure 1 a partially enlarged schematic diagram of part B in

[0024] Figure 4 is a side view schematic diagram of the square air cylinder, the hot air outlet assembly, the end plastic box, the lifting mechanism and the magnet in the present invention.

[0025] Figure 5 is a top view schematic diagram of the square air cylinder and the hot air outlet assembly in the present invention.

[0026] Figure 6 is Figure 4 a partially enlarged schematic diagram of part C in

[0027] Figure 7 is a schematic diagram of the hot air supply logic of the hot air supply device in the present invention.

[0028] DESCRIPTION OF THE REFERENCE NUMERALS:

[0029] 1 - Drying device, 101 - Drying chamber, 102 - Guide roller; 2 - tipping paper; 3 - Square air cylinder, 301 - Heat-absorbing alloy plate, 302 - Piston shaft rod, 303 - First mounting bracket, 304 - Plastic shrapnel; 4 - Hot gas outflow component, 401 - Air outlet box, 402 - Longitudinal ventilation groove, 403 - Strip-shaped air outlet, 404 - Guide notch, 405 - Roller structure, 406 - Cross frame, 407 - Vertical baffle, 408 - Diverging protrusion, 409 - Sponge strip; 5 - End plastic box, 501 - Magnetic attraction plate, 502 - Air pipe interface, 503 - Connecting air pipe; 6 - Lifting mechanism, 601 - Lifting shaft rod, 602 - Connecting bracket; 7 - Magnet; 8 - Distance sensing module; 9 - Air supply insertion tube, 10 - Air flow flexible conduit. Detailed implementation mode

[0030] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] Embodiment 1

[0032] Please refer to Figure 1 , a plurality of staggeredly distributed guide rollers 102 are arranged in the drying chamber 101 inside the drying device 1, and the tipping paper 2 winds through the guide rollers 102 at different positions. A plurality of groups of square air cylinders 3 are fixedly installed between the two side walls of the drying chamber 101 (the square air cylinders 3 are located in the area of the gap of the winding tipping paper 2), and the number of each group of square air cylinders 3 is two (in combination with Figure 4 ), the hot gas outflow component 4 is slidably installed in a fixed direction between the two square air cylinders 3. In addition, a circle of heat-absorbing alloy plates 301 is arranged at the bottom of the square air cylinder 3 (transferring the heat and temperature in the "bottom area" to the inside of the square air cylinder 3).

[0033] A plurality of lifting mechanisms 6 are distributed at the inner side of the top plate of the drying chamber 101, the output end of the lifting mechanism 6 faces downward, and a magnet 7 is installed at the output end of the lifting mechanism 6.

[0034] Please refer to Figure 1 , Figure 2, the hot air outlet assembly 4 includes an air outlet box 401. A plurality of strip-shaped air outlet openings 403 are formed on both side surfaces of the air outlet box 401, and the strip-shaped air outlet openings 403 communicate with the longitudinal ventilation grooves 402. The vertical baffles 407 are fixedly installed at the outer peripheral positions on both sides of the air outlet box 401 (wherein, cross frames 406 are provided at the four corner positions of the vertical baffles 407, and the vertical baffles 407 are fixed to the outer side of the air outlet box 401 through the cross frames 406). The vertical baffles 407 are provided with a plurality of flow dividing protrusions 408 and sponge strips 409. The flow dividing protrusions 408 are aligned with the positions of the strip-shaped air outlet openings 403 (wherein, the cross section of the flow dividing protrusions 408 is a triangular structure), and the sponge strips 409 are distributed alternately with the flow dividing protrusions 408 (a plurality of strip-shaped grooves staggered with the distribution positions of the strip-shaped air outlet openings 403 are formed on the vertical baffles 407, and the sponge strips 409 are installed at the positions of the strip-shaped grooves. The sponge strips 409 can adopt sponges with relatively thin thickness, which is convenient for the hot air flow to pass through the sponge strips 409, and the hot air flow can be evenly diffused).

[0035] Please refer to Figure 1 , Figure 3 , a plurality of air supply insertion tubes 9 are installed at the inner side position of the top plate of the drying chamber 101. The air supply insertion tubes 9 are connected to the air flow flexible ducts 10, and the air flow flexible ducts 10 are connected to the end plastic box 5 (the end plastic box 5 is provided with a tracheal interface 502 communicating with the connecting trachea 503 (in combination with Figure 4 ), and the lower side end of the air flow flexible duct 10 is connected to the tracheal interface 502). In combination with Figure 7 , each air supply insertion tube 9 is independently connected to an external hot air flow supply device, and the hot air flow supply device is provided with an electronically controlled linear valve, and the electronically controlled linear valve is used to adjust the magnitude of the air flow transmitted to the air supply insertion tube 9.

[0036] Please refer to Figure 4 , the square air cylinder 3 includes a piston shaft rod 302. A moving piston is arranged inside the square air cylinder 3, and the piston shaft rod 302 extends into the square air cylinder 3 and is fixedly connected to the moving piston. The upper side ends of the piston shaft rods 302 of two square air cylinders 3 in the same group are jointly connected to the end plastic box 5. The upper end of the connecting trachea 503 is connected to the end plastic box 5, and the lower end of the connecting trachea 503 is connected to the installed hot air outlet assembly 4. (The end plastic box 5 is made of a high molecular plastic material, which not only reduces the weight but also reduces the influence on the acting force between the magnet 7 and the magnetic attraction plate 501).

[0037] Please refer to Figure 4 , Figure 5, the hot air outlet component 4 includes an outlet box 401. The outlet box 401 is provided with a longitudinal ventilation groove 402. The lower end of the connecting air pipe 503 communicates with the longitudinal ventilation groove 402. A plurality of strip-shaped air outlets 403 on both sides of the outlet box 401 are all communicated with the longitudinal ventilation groove 402. The outlet box 401 is provided with a guiding notch 404. A plurality of sets of roller structures 405 are arranged inside the guiding notch 404. The square air cylinder 3 is slidably installed at the position of the guiding notch 404.

[0038] Please refer to Figure 4 , Figure 6 , the first mounting bracket 303 is fixedly installed on the upper side end of the piston rod 302. The end plastic box 5 is fixedly installed at the position of the first mounting bracket 303. A magnetic attraction plate 501 is embedded in the top side surface of the end plastic box 5. The magnetic attraction plate 501 faces the magnet 7. A plastic elastic sheet 304 is installed on the upper side of the end plastic box 5. The plastic elastic sheet 304 is located between the magnetic attraction plate 501 and the magnet 7 (the plastic elastic sheet 304 prevents the magnet 7 from being too close to the magnetic attraction plate 501). The lifting mechanism 6 is provided with a lifting shaft rod 601. The lifting shaft rod 601 is vertically downward. The magnet 7 is installed at the lower side end of the lifting shaft rod 601. The connecting bracket 602 is fixedly connected with the lifting shaft rod 601. The distance sensing module 8 is installed at the bottom side end position of the connecting bracket 602. The sensing direction of the distance sensing module 8 faces the top side surface of the end plastic box 5.

[0039] Embodiment 2

[0040] The present invention relates to a method for linear heating and drying of tipping paper printing, including self-weight offset regulation, hot air outlet component position regulation, hot air flow regulation, and other contents.

[0041] 1. Self-weight cancellation control: When the square air cylinder 3 is in its normal state, the lifting mechanism 6 drives the magnet 7 to move in a unit distance mode (in this application, the unit distance mode means that the lifting mechanism 6 drives the magnet 7 to move according to a certain constant distance each time, for example, the constant distance moved each time is 0.5 mm, 1 mm, or 2 mm, or the distance moved each time is set according to the movement accuracy that the lifting mechanism 6 can control) close to the magnetic attraction plate 501 of the end plastic box 5, and the distance sensing module 8 detects the change of the distance parameter in real time. Every time the magnet 7 moves a unit distance, the lifting mechanism 6 pauses for a certain period of time (such as 1 s or 2 s), and the distance sensing module 8 senses and detects the distance of the end plastic box 5 during this period. ① If the distance sensing module 8 senses and detects that the distance remains unchanged, the lifting mechanism 6 drives the magnet 7 to move another unit distance. ② If the distance sensing module 8 senses and detects that the distance decreases, let the distance sensed and detected by the distance sensing module 8 before the distance decrease be H, let the unit distance that the lifting mechanism 6 drives the magnet 7 to move be Y, and the control system presets the gram weight distance parameter D (the gram weight distance parameter does not completely overcome the weight of the end plastic box 5 and its connected component structure, but within a controllable range, it tries to reduce the weight load generated by the end plastic box 5 and its connected component structure on the square air cylinder 3 as much as possible, so that the driving effect of the internal air pressure heat change of the square air cylinder 3 output outward is better. The driving effect output outward here refers to the effect of the piston shaft 302 driving the end plastic box 5 and the hot air outlet component 4 to move up and down), D = H + 2Y (setting two unit distances Y here is to prevent the square air cylinder 3 from driving the end plastic box 5 to move too fast. Before the lifting mechanism 6 has time to adjust the magnet 7, the magnetic attraction plate 501 is already very close to the magnet, resulting in the end plastic box 5, the piston shaft 302, and the hot air outlet component 4 not rising rapidly due to the "thermal drive" of the square air cylinder 3. Reserving two unit distances Y is just a reference, and it can also be other distance parameters, but the remaining distance should not be too large because the magnet 7 needs to magnetically attract the magnetic attraction plate 501).

[0042] II. Regulation of the position of the hot air outlet component: When the drying device 1 dries the tipping paper 2, the heat absorption alloy plate 301 at the bottom of the square air cylinder 3 absorbs the heat of the air in the lower area of the winding path of the tipping paper 2. The square air cylinder 3 is heated to drive the piston rod 302 to move, and the end plastic box 5 and the hot air outlet component 4 move up and down. During the up and down movement of the end plastic box 5, the distance sensing module 8 senses and detects the distance parameter from the end plastic box 5 in real time, denoted as Dx. ① When the distance parameter Dx > D, the lifting mechanism 6 drives the magnet 7 closer to the end plastic box 5 until the distance parameter Dx = the grammage distance parameter D. ② When the distance parameter Dx < D, the lifting mechanism 6 drives the magnet 7 away from the end plastic box 5 until the distance parameter Dx = the grammage distance parameter D (when the distance parameter Dx <= D - 2Y, the lifting mechanism 6 accelerates to drive the magnet 7 away from the end plastic box 5. Here, "acceleration" is relative to the normal state where the lifting mechanism 6 drives the end plastic box 5 smoothly. Through a certain acceleration, the magnet 7 can get rid of the greater attraction generated by being closer to the magnetic attraction plate 501, so that the magnetic attraction is slightly less than the weights of the end plastic box 5, the piston rod 302, the hot air outlet component 4 and other components. After the magnet 7 gets rid of the close proximity to the magnetic attraction plate 501, it still regulates the distance between the magnet 7 and the magnetic attraction plate 501 normally according to the above regulation method).

[0043] III. Regulation of the hot air flow rate: The control system obtains the distance information of the lifting movement of the magnet 7 driven by the lifting mechanism 6, and linearly controls the air flow rate supplied by the hot air supply device to the air supply insertion tube 9 according to the distance of the magnet 7 moving up and down. Let the distance that the lifting mechanism 6 drives the magnet 7 to move downward be L, and the air flow rate supplied by the hot air supply device to the air supply insertion tube 9 be Q. Then there is an air flow rate Q ∝ distance L (because the smaller L is, it means that the position of the hot air outlet component 4 is higher, and the heat and temperature in the bottom area of the winding path of the tipping paper 2 are greater. At this time, the heat in this area is already "sufficiently much". Appropriately reducing the hot air supply will neither significantly reduce the drying effect on the tipping paper 2 nor waste a lot of heat).

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A linear heating and drying device for tipping paper printing. The drying device (1) is internally provided with a drying chamber (101). A number of guide rollers (102) are arranged in the drying chamber (101). The tipping paper (2) winds through a number of guide rollers (102). Characterized in that: A number of groups of square air cylinders (3) are fixedly installed between the two side walls of the drying chamber (101). A circle of heat-absorbing alloy plates (301) is arranged at the bottom of the square air cylinder (3). The number of each group of square air cylinders (3) is two. A hot air outflow component (4) is installed between the two square air cylinders (3) in a guiding manner. The output ends of the two square air cylinders (3) are jointly connected to an end plastic box (5). The square air cylinder (3) includes a piston shaft rod (302). The upper end of the piston shaft rod (302) is connected with a first mounting bracket (303). The end plastic box (5) is fixedly installed at the position of the first mounting bracket (303). A connecting air pipe (503) is installed between the end plastic box (5) and the installed hot air outflow component (4). A number of lifting mechanisms (6) are installed inside the top plate of the drying chamber (101). The output end of the lifting mechanism (6) faces downward and a magnet (7) is installed at the output end. A magnetic suction plate (501) corresponding to the position of the magnet (7) is embedded and installed on the top side of the end plastic box (5). A distance sensing module (8) corresponding to the top side of the end plastic box (5) is installed at the output end of the lifting mechanism (6). The lifting mechanism (6) is provided with a downward lifting shaft rod (601). The magnet (7) is installed at the lower side end of the lifting shaft rod (601). The lifting shaft rod (601) is fixedly connected with a connecting bracket (602). The distance sensing module (8) is installed at the bottom end position of the connecting bracket (602). A plastic elastic sheet (304) located between the magnetic suction plate (501) and the magnet (7) is installed on the upper side of the end plastic box (5). The hot air outflow component (4) includes an air outlet box (401). The air outlet box (401) is provided with a longitudinal ventilation groove (402) communicated with the connecting air pipe (503). A number of strip-shaped air outlet openings (403) communicated with the longitudinal ventilation groove (402) are arranged on both sides of the air outlet box (401). Vertical baffles (407) are fixedly connected to the outer periphery of both sides of the air outlet box (401). The vertical baffles (407) are provided with a number of flow splitting protrusions (408) aligned with the positions of the strip-shaped air outlet openings (403). The vertical baffles (407) are provided with a number of sponge strips (409) staggered with the flow splitting protrusions (408). The vertical baffles (407) are provided with a number of strip-shaped grooves staggered with the distribution positions of the strip-shaped air outlet openings (403). The sponge strips (409) are installed at the positions of the strip-shaped grooves. The cross section of the flow splitting protrusion (408) is a triangular structure. A plurality of air supply tubes (9) are installed on the inner side of the top plate of the drying chamber (101), and an air flow soft conduit (10) is provided between the air supply tubes (9) and the end plastic box (5), and each air supply tube (9) is independently connected to an external hot air flow supply device, and the hot air flow supply device is provided with an electrically controlled linear valve for adjusting the air flow rate.

2. A linear heating and drying device for tipping paper printing according to claim 1, Features: The air outlet box (401) is provided with a guide notch (404), and a plurality of roller structures (405) are provided inside the guide notch (404). The square air cylinder (3) is slidably mounted at the position of the guide notch (404).

3. A linear heating and drying device for tipping paper printing according to claim 1, Features: The end plastic box (5) is provided with an air pipe interface (502) connected to the connecting air pipe (503), and the lower end of the air flow soft conduit (10) is connected to the position of the air pipe interface (502).

4. A linear heating drying method for printing tipping paper, It is characterized in that A linear heating and drying device for tipping paper printing according to any one of claims 1 to 3, comprising the following contents: ㈠Self-weight offset control When the square air cylinder (3) is in a normal state, the lifting mechanism (6) drives the magnet (7) to move close to the magnetic attraction plate (501) of the end plastic box (5) in a unit distance movement manner, and the distance sensor module (8) detects the change of the distance parameter in real time; Every time the magnet (7) moves a unit distance, the lifting mechanism (6) stops moving for a certain period of time, and the distance sensor module (8) performs sensor detection on the distance of the end plastic box (5) during this period of time; ① If the distance sensor module (8) detects that the distance remains unchanged, the lifting mechanism (6) drives the magnet (7) to move another unit distance; ② If the distance sensor module (8) senses that the distance is reduced, the distance sensed by the distance sensor module (8) before the distance is reduced is set as H, and the unit distance driven by the lifting mechanism (6) to move the magnet (7) is set as Y, and the control system presets a gram weight distance parameter D, D=H+2Y; ㈡ Position control of hot air outlet components When the drying device (1) dries the tipping paper (2), the heat-absorbing alloy plate (301) at the bottom of the square air cylinder (3) absorbs the heat of the air in the lower area of ​​the circuitous path of the tipping paper (2). The square air cylinder (3) is heated to drive the piston shaft (302) to move, the end plastic box (5), and the hot air flow outlet assembly (4) to move up and down. During the process of the end plastic box (5) moving up and down, the distance sensor module (8) senses and detects the distance parameter between the end plastic box (5) and the end plastic box (5) in real time, which is recorded as Dx. ① When the distance parameter Dx>D, the lifting mechanism (6) drives the magnet (7) to approach the end plastic box (5) until the distance parameter Dx=the gram weight distance parameter D; ②D-2Y<When the distance parameter Dx <D,升降机构(6)带动磁铁(7)远离端部塑盒(5),直至距离参数Dx=克重距离参数D; ㈢Hot gas flow control The control system obtains the distance information of the lifting movement of the lifting mechanism (6) driving the magnet (7), and linearly controls the gas flow rate supplied by the hot air flow supply device to the gas supply insertion tube (9) according to the distance of the magnet (7) moving up and down; Let the distance that the lifting mechanism (6) drives the magnet (7) to move downward be L, and the gas flow rate supplied by the hot air flow supply device to the gas supply insertion tube (9) be Q. Then there is a relationship that the gas flow rate Q is proportional to the distance L.

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