Steam gluing machine for paper tape

Abstract

The invention provides a steam gluing machine for a paper tape, which belongs to the technical field of paper tape manufacture and comprises a rack, a heating unit, a guide unit and a pressing unit. The heating unit comprises a heating cylinder arranged up and down, a driving structure in transmission connection with the heating cylinder and a steam structure connected with the heating cylinder, the heating cylinder is rotationally connected to the rack, a heating cavity is formed in the heating cylinder, the driving structure is used for driving the heating cylinder to rotate with the horizontal direction as a rotating shaft, and the steam structure is used for injecting steam into the heating cavity; the guide unit comprises a guide roller, a guide wheel and a deviation roller, the guide roller and the guide wheel are arranged up and down, the deviation roller is arranged between the guide roller and the guide wheel, the guide roller and the guide wheel are fixedly connected to the rack, and a gap for the paper tape to pass through is reserved between the deviation roller and one heating cylinder; the pressing unit is arranged on the side, away from the heating cylinder, of the guide unit and used for pressing and compounding the paper tape. The bonding firmness of the paper tape is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of paper tape manufacturing, and particularly relates to a steam bonding machine for paper tape. BACKGROUND

[0002] In the packaging field of box-type food, beverage and other commodities, the independent plastic handle commonly used for the convenience of carrying is gradually being eliminated by the market and regulations due to its non-degradable raw materials and easy white pollution. The handle belt made of paper material with the same properties as the packaging box has become an ideal alternative solution that meets the needs of the new era due to its significant environmental advantages such as recyclability, easy degradation and sustainable raw material sources.

[0003] Such paper handle belt usually needs to be firmly bonded through hot melt adhesive or self-fiber melting and recombination. However, in the actual bonding process, there are temperature differences in different parts of the paper tape after heating structure treatment, because in the continuous production line, the paper tape exchanges heat with the environment during operation, so that the paper tape cannot be stably in the best temperature range required for bonding, resulting in unfirm bonding of the paper tape. SUMMARY

[0004] The paper tape steam bonding machine provided by the embodiment of the application aims to solve the technical problem of unfirm bonding caused by the fact that the paper tape is not in the best temperature range required for bonding.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the application is to provide a paper tape steam bonding machine, which comprises:

[0006] a rack;

[0007] a heating unit comprising an upper and lower heating cylinder, a driving structure connected to the heating cylinder, and a steam structure connected to the heating cylinder, the heating cylinder being rotatably connected to the rack, the heating cylinder having a heating cavity formed therein, the driving structure being configured to drive the heating cylinder to rotate about a horizontal axis, and the steam structure being configured to inject steam into the heating cavity;

[0008] a guide unit comprising an upper and lower guide roller and a guide wheel, and a biasing roller arranged between the guide roller and the guide wheel, the guide roller and the guide wheel being fixed to the rack, and the biasing roller and one of the heating cylinders having a gap for the paper tape to pass through; and

[0009] a pressing unit arranged on the side of the guide unit away from the heating cylinder, the pressing unit being configured to press and composite the paper tape.

[0010] In a possible implementation, a partition cylinder is fixedly connected in the heating cylinder, a plurality of partition plates are fixedly connected between the partition cylinder and the heating cylinder, and a heating area is formed between two adjacent partition plates.

[0011] The heating unit further comprises:

[0012] A temperature measuring member is arranged on the guide roller and is used for monitoring the surface temperature of the paper tape.

[0013] A plurality of exchange members correspond to the heating areas one by one, and the exchange members are used for transferring steam between the heating areas and the temperature rising cavity.

[0014] In a possible implementation, an electric heating plate is arranged in the partition cylinder.

[0015] In a possible implementation, a rapid dispersion unit is arranged in the heating area, the rapid dispersion unit comprises a rapid dispersion roller rotatably connected to the inner wall of the heating area, a rapid dispersion blade fixedly connected to the outer periphery of the rapid dispersion roller, and a first driving member drivingly connected to the rapid dispersion roller, the rapid dispersion blade is in a spiral shape, and the first driving member is used for driving the rapid dispersion roller to rotate around the axial direction of the heating cylinder.

[0016] In a possible implementation, a layer breaking unit is arranged in the temperature rising cavity, the layer breaking unit comprises a layer breaking cylinder rotatably connected to the partition cylinder, a plurality of layer breaking rods fixedly connected to the layer breaking cylinder, and a second driving member drivingly connected to the layer breaking cylinder, and the second driving member is used for driving the layer breaking cylinder to rotate around the axial direction of the heating cylinder.

[0017] In a possible implementation, two flexible layer breaking pieces are fixedly connected to the outer periphery of the layer breaking rod, and the two layer breaking pieces are oppositely arranged along the axial direction of the heating cylinder.

[0018] In a possible implementation, the pressing unit comprises:

[0019] A pressing wheel is rotatably connected to the rack;

[0020] A pressure receiving wheel is rotatably connected to the rack, and a pressure receiving protrusion is arranged on the outer periphery of the pressure receiving wheel.

[0021] A power structure is drivingly connected to the pressing wheel and the pressure receiving wheel, and the power structure is used for driving the pressing wheel and the pressure receiving wheel to rotate around the axial direction of the heating cylinder.

[0022] In a possible implementation, a coating cavity is arranged in the pressing wheel, an injection port is arranged on the outer wall of the pressing wheel and communicates with the coating cavity, a glue guide column is slidably arranged in the injection port, and a glue guide channel is arranged in the glue guide column.

[0023] The sealing plate is rotationally connected with the inner wall of the coating cavity, and a deformation member is arranged on the sealing plate.

[0024] The structure inside the pressure bearing protrusion is the same as the structure inside the pressure applying wheel.

[0025] In a possible implementation, the guide unit further includes:

[0026] The position adjusting seat is fixedly connected with the rack, and a position adjusting groove is arranged on the position adjusting seat.

[0027] The position adjusting frame is slidably arranged in the position adjusting groove, and the position adjusting frame moves in the horizontal direction. The deflection roller is rotationally connected with the position adjusting frame, and the deflection roller rotates around the axial direction of the heating cylinder.

[0028] The third driving member is transmissionally connected with the deflection roller, and the third driving member is configured to drive the deflection roller to rotate.

[0029] The telescopic member is fixedly connected between the position adjusting frame and the position adjusting seat, and the telescopic member is telescopic along the moving direction of the position adjusting frame.

[0030] In a possible implementation, the heating cylinder has an A end and a B end.

[0031] The steam structure includes:

[0032] The steam generator is configured to generate steam.

[0033] The steam inlet pipe is connected with the steam generator and the heating cylinder, and the steam inlet pipe extends from the A end to the B end of the heating cylinder.

[0034] The steam return pipe is connected with the steam generator and the heating cylinder, and the steam return pipe is connected with the A end of the heating cylinder. The steam return pipe does not extend into the heating cylinder.

[0035] Compared with the prior art, the paper tape steam bonding machine provided by the application creatively realizes double-stage heating of the paper tape by designing a specific paper tape passing path that sequentially passes through the heating cylinder, the guide roller, the deflection roller, the guide wheel, and finally reaches the pressing unit. This unique path and layout enable the temperature of the paper tape to be effectively maintained and actively offset the heat loss caused by environmental heat dissipation in the key stage after the paper tape leaves the main heating area and before the paper tape enters the pressing unit, dynamically ensuring that the temperature of the paper tape bonding surface continuously and stably stays within the optimal process window, and fundamentally solving the core problem of paper handle tape bonding instability caused by uneven or decaying temperature. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 Partial view of steam adhesive machine for paper tape of the embodiment of the present application;

[0037] Figure 2 Partial view of the structure inside heating cylinder of the embodiment of the present application;

[0038] Figure 3 Partial enlarged view of A part in the figure; Figure 2

[0039] Figure 4 Partial view of the position adjustment mode of the deflection roller of the embodiment of the present application;

[0040] Figure 5 Partial view of the internal structure of the pressing wheel of the embodiment of the present application;

[0041] Figure 6 Partial enlarged view of B part in the figure; Figure 5

[0042] Explanation of reference signs:

[0043] 10, frame;

[0044] 20, heating unit; 201, heating cylinder; 2011, temperature rising cavity; 2012, partition cylinder; 2013, partition plate; 2014, heat supply area; 2015, electric heating plate; 2016, A end; 2017, B end; 202, steam inlet pipe; 203, steam outlet pipe; 204, exchange piece;

[0045] 30, guiding unit; 301, guiding roller; 302, guiding wheel; 303, deflection roller; 304, position adjustment seat; 305, position adjustment frame; 306, telescopic piece;

[0046] 40, pressing unit; 401, pressing wheel; 4011, paint cavity; 4012, glue injection port; 4013, sealing plate; 40131, glue injection port; 402, pressure bearing wheel; 4021, pressure bearing protrusion;

[0047] 50, speed dispersion unit; 501, speed dispersion roller; 502, speed dispersion blade; 503, first driving piece;

[0048] 60, layer breaking unit; 601, layer breaking cylinder; 602, layer breaking rod; 6021, layer breaking piece;

[0049] 70, glue guiding column; 701, glue guiding channel. DETAILED DESCRIPTION

[0050] ​​In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application 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 intended to explain the present application and not to limit the present application.

[0051] Please refer to Figures 1 to 6 The paper tape steam adhesive machine is described. The paper tape steam adhesive machine comprises a rack 10, a heating unit 20, a guide unit 30 and a pressing unit 40. The heating unit 20 comprises upper and lower heating cylinders 201, a driving structure connected to the heating cylinders 201 and a steam structure connected to the heating cylinders 201. The heating cylinders 201 are rotationally connected to the rack 10. The heating cylinders 201 are provided with heating cavities 2011. The driving structure is used to drive the heating cylinders 201 to rotate horizontally as the rotation axis. The steam structure is used to inject steam into the heating cavities 2011. The steam structure is an existing steam generating device. The driving structure and the steam structure are both prior art, and will not be described herein. The guide unit 30 comprises upper and lower guide rollers 301 and guide wheels 302 and a deviation roller 303 arranged between the guide rollers 301 and the guide wheels 302. The guide rollers 301 and the guide wheels 302 are fixed to the rack 10. A gap is left between the deviation roller 303 and one of the heating cylinders 201 for the paper tape to pass through. The pressing unit 40 is arranged on the side of the guide unit 30 away from the heating cylinders 201. The pressing unit 40 is used to press and combine the paper tape.

[0052] It should be noted that the parts of the outer periphery of the heating cylinders not in contact with the paper tape are provided with heat preservation materials.

[0053] The paper tape steam adhesive machine provided by the embodiment compared with the prior art, through the design of a specific paper tape passing path sequentially passing through the heating cylinders 201, the guide rollers 301, the deviation roller 303, the guide wheels 302 and finally reaching the pressing unit 40, the double-stage heating of the paper tape is creatively realized. The paper tape first receives the first main heating on the surface of the heating cylinders 201, so that the whole paper tape is heated to the required interval for adhesion. Then, when the paper tape is guided by the guide rollers 301 and passes around the deviation roller 303, its position is designed to be close to the heating cylinders 201 again, so as to receive the second compensatory heating close to the heat source. This unique path and layout make the temperature of the paper tape in the key stage after leaving the main heating area and before entering the pressing unit 40 not only effectively maintained, but also actively offset the heat loss caused by environmental heat dissipation, dynamically ensuring that the temperature of the adhesion surface of the paper tape continuously and stably within the optimal process window, fundamentally solving the core problem of paper handle tape adhesion not firm caused by uneven or decayed temperature, and providing key process guarantee for reliable replacement of plastic handle by environmentally friendly paper material.

[0054] In some embodiments, referring to Figure 2 andFigure 4 The heating cylinder 201 is fixedly connected with a partition cylinder 2012, and a plurality of partition plates 2013 are fixedly connected between the partition cylinder 2012 and the heating cylinder 201, and a heating area 2014 is formed between two adjacent partition plates 2013.

[0055] The heating unit 20 further comprises a temperature measuring member and a plurality of exchange members 204; the temperature measuring member is arranged on the guide roller 301 and is used for monitoring the surface temperature of the paper strip; and the plurality of exchange members 204 correspond to the heating areas 2014 one by one, and the exchange members 204 are used for transferring steam between the heating areas 2014 and the temperature rising cavities 2011.

[0056] In structure, the partition cylinder 2012 fixedly connected to the inside of the heating cylinder 201 cooperates with the plurality of partition plates 2013 to divide the annular cavity between the heating cylinder 201 and the partition cylinder 2012 into a plurality of independent heating areas 2014, and the content of steam in the heating area 2014 is controlled by the exchange member 204, so as to control the temperature of each heating area 2014.

[0057] When the paper strip passes through the temperature measuring member arranged at the guide roller 301, the surface temperature of the paper strip is collected in real time and continuously and is transmitted to the control system. The control system compares and calculates the measured temperature data with the preset optimal process temperature range.

[0058] If the temperature of the heating area 2014 corresponding to a certain section of the paper strip is too low, the control system will instruct the exchange member 204 (for example, a proportional valve or an electromagnetic valve adjusting the steam flow to the area) corresponding to the area to act, so as to increase the steam flow to the specific heating area 2014 or enhance the heat exchange efficiency, so as to accurately increase the temperature of the outer wall of the local heating cylinder 201; on the contrary, if the temperature of a certain area is too high, the heat input can be reduced through the exchange member 204.

[0059] After the paper strip is heated for the first time, the temperature of the paper strip is measured by the temperature measuring member, and then when the paper strip passes through the offset roller 303, the temperature of the corresponding heating area 2014 is adjusted based on the difference between the temperature of the paper strip and the optimal temperature, so as to heat the paper strip to the optimal temperature range. Through this dynamic partition adjustment based on real-time temperature feedback, the thermal environment experienced by the paper strip during the whole process of contacting the heating cylinder 201 twice can be actively and adaptively optimized, and the heating process is changed from “extensive uniformity” to “precise uniformity”.

[0060] In some embodiments, referring to Figure 2 The partition cylinder 2012 is provided with an electric heating plate 2015.

[0061] When the system is initially started or restarted after a long shutdown, the steam structure has not yet injected steam into the warming cavity 2011. At this time, the electric heating plate 2015 is first powered on, and the heat generated by the electric heating plate 2015 rapidly raises the overall temperature of the metal separation cylinder 2012 in which the electric heating plate 2015 is embedded through direct heat conduction. After the wall temperature of the separation cylinder 2012 is preheated to a set value (which is usually higher than the saturation temperature of the subsequent injected steam, or at least ensures that condensation does not occur when in contact), the steam generator starts to inject high-temperature steam into the warming cavity 2011. Since the outer wall of the separation cylinder 2012, which is the main heat exchange surface at this time, has been preheated, the temperature difference between the steam and the metal wall is controlled within a reasonable range, and the process of releasing latent heat of the steam becomes smooth and uniform, avoiding the generation of condensed water due to the large temperature difference and the instantaneous condensation and heat release of the steam, thereby ensuring the uniform flow and heat transfer of the steam in the heating area 2014 in a dry or slightly superheated state.

[0062] In some embodiments, referring to Figure 2 , the heating area 2014 is provided with a rapid dispersion unit 50, which includes a rapid dispersion roller 501 rotatably connected to the inner wall of the heating area 2014, rapid dispersion blades 502 fixedly connected to the outer periphery of the rapid dispersion roller 501, and a first driving member 503 drivingly connected to the rapid dispersion roller 501. The rapid dispersion blades 502 are helical, and the first driving member 503 is used to drive the rapid dispersion roller 501 to rotate around the axis of the heating cylinder 201. The first driving member 503 is a servo motor.

[0063] In each independent heating area 2014 separated by the separation plate 2013, the first driving member 503 drives the rapid dispersion roller 501 to rotate, and the helical rapid dispersion blades 502 fixedly connected to the outer periphery of the rapid dispersion roller 501 rotate with it. When the rapid dispersion blades 502 rotate, their unique helical structure generates a continuous axial thrust on the steam in the heating area 2014, driving the steam to flow in a forced circulation along the axis of the heating cylinder 201.

[0064] This forcedly organized steam flow strongly disturbs the original possible stationary or laminar state of the steam, generating sufficient turbulent mixing, and the heat transfer is thus changed from mainly relying on conduction and limited natural convection to efficient forced convection heat transfer. Heat can be quickly brought from the heat source to all locations in the heating area 2014, including the corners far from the heat source, and uniformly transferred to the inner wall of the heating cylinder 201, thereby achieving temperature balance in the three-dimensional space inside the heating area 2014 and providing a stable and uniform heat flux density for the outer surface of the heating cylinder 201.

[0065] In some embodiments, referring to Figure 2 and Figure 3The heating chamber 2011 is provided with a layer-breaking unit 60. The layer-breaking unit 60 includes a layer-breaking cylinder 601 rotatably connected to the partition cylinder 2012, a plurality of layer-breaking rods 602 fixed to the layer-breaking cylinder 601, and a second driving member pulsatingly connected to the layer-breaking cylinder 601. The second driving member is used to drive the layer-breaking cylinder 601 to rotate about the axis of the heating cylinder 201 as the rotation axis. The second driving member is a servo motor.

[0066] The second driving component drives the layer-breaking cylinder 601 to rotate in the steam-filled heating chamber 2011, and multiple layer-breaking rods 602 fixed on it move in a circular motion accordingly. These layer-breaking rods 602 act like efficient mechanical stirrers, and their rotational motion directly generates strong shearing and disturbance effects on the overall steam fluid in the heating chamber 2011.

[0067] This mechanical stirring forcefully breaks the natural stratification of steam based on density and temperature differences, forcibly mixing the high-temperature steam that may accumulate at the top of the cavity with the low-temperature steam (or a small amount of condensed air) that may settle at the bottom or stagnate in dead corners, so that the entire heating cavity 2011 quickly forms a turbulent field with almost uniform temperature and density.

[0068] In some embodiments, see Figure 3 Two flexible delaminar plates 6021 are fixed to the outer periphery of the delaminar rod 602, and the two delaminar plates 6021 are arranged opposite each other along the axial direction of the heating cylinder 201.

[0069] When the second driving component drives the fragmentation cylinder 601 to rotate, the two flexible fragmentation plates 6021 fixed to the fragmentation rod 602 move in the steam. Due to their flexibility, under the combined action of rotational centrifugal force and steam fluid resistance, these fragmentation plates 6021 do not always maintain a rigid posture, but will bend and oscillate in accordance with the direction of the fluid.

[0070] This dynamic deformation causes the breaker plate 6021 to continuously change its frontal area and angle of action during movement, thus acting on the steam in a way that is closer to "stirring" than "cutting". This mode of action can form a gentle vortex zone with a larger range and less turbulence loss around the entire breaker bar 602, and as it rotates, the oscillation of the flexible plate tip can reach and stir the boundary layer steam near the cavity wall.

[0071] In some embodiments, see Figure 1The pressing unit 40 includes a pressure roller 401, a pressure bearing roller 402, and a power structure. The pressure roller 401 is rotatably connected to the frame 10. The pressure bearing roller 402 is rotatably connected to the frame 10, and the outer periphery of the pressure bearing roller 402 is provided with a pressure bearing protrusion 4021. The power structure is driven to the pressure roller 401 and the pressure bearing roller 402. The power structure is used to drive the pressure roller 401 and the pressure bearing roller 402 to rotate about the axis of the heating cylinder 201. The power structure is prior art and will not be described in detail in this application.

[0072] A power structure (such as a synchronous motor and gear set) simultaneously drives the pressure roller 401 and the bearing roller 402 to rotate at the same linear speed but in opposite directions. The double-heated paper tape is guided into the meshing area between the two rollers. As the paper tape passes through, the pressure-bearing protrusion 4021 on the bearing roller 402 and the corresponding area on the pressure roller 401 form a pair of high-pressure zones. At this instant, the enormous pressure concentrated at the protrusions acts on the adhesive interface of the paper tape, forcing the materials to adhere tightly and promoting the spread of the adhesive or the entanglement of the fibers.

[0073] The continuous synchronous rotation of the two wheels ensures that this high-pressure pressing process proceeds continuously and stably along the length of the paper strip, forming a neat and strong adhesive line, completing the final key step from heating to molding.

[0074] In some embodiments, see Figure 1 , Figure 5 as well as Figure 6 The pressure roller 401 has a coating cavity 4011 inside, and the outer wall of the pressure roller 401 has an injection port 4012 that communicates with the coating cavity 4011. The injection port 4012 has a guide column 70 that slides inside, and the guide column 70 has a through guide channel 701.

[0075] A sealing plate 4013 is rotatably connected to the inner wall of the coating cavity 4011. The sealing plate 4013 is rotatably connected to the inner wall of the coating cavity 4011 by a deformation member. The deformation member has a pre-tightening force that causes the sealing plate 4013 to rotate in the direction of the guide glue column 70. The sealing plate 4013 has a through glue outlet 40131.

[0076] It should be noted that the structure inside the pressure-bearing protrusion 4021 is the same as the structure inside the pressure-applying wheel 401.

[0077] The protective agent is pre-filled into the annular coating cavity 4011 of the pressure roller 401. In the initial state, the glue passage 40131 on the sealing plate 4013 is misaligned with the glue guiding channel 701 on the glue guiding post 70, thereby closing the glue path and preventing leakage. When the paper tape enters the pressure roller 401 and the bearing roller 402, the end of the glue guiding post 70 is first resisted by the paper tape and pushed inward into the coating cavity 4011.

[0078] This sliding makes the glue guide column 70 drive the sealing plate 4013 to rotate until the glue outlet 40131 on the sealing plate 4013 is aligned with the glue guide channel 701, forming a temporary glue flow channel from the coating cavity 4011 to the surface of the paper tape. The protective agent is immediately extruded through the channel under the action of cavity pressure or centrifugal force and is applied to the surface of the paper tape to be pressed.

[0079] Once the pressing point is passed, the glue guide column 70 loses external pressure, resets under the action of the deformation member, the channel is misaligned again, and the glue flow is instantaneously cut off. The same structure is provided in the pressure-bearing protrusion 4021, so that the protective agent can be applied to both surfaces,

[0080] In some embodiments, referring to Figure 4 , the guide unit 30 further comprises a position adjusting seat 304, a position adjusting frame 305, a third driving member, and a telescopic member 306; the position adjusting seat 304 is fixedly connected to the rack 10 and is provided with a position adjusting groove; the position adjusting frame 305 is slidably arranged in the position adjusting groove and moves in the horizontal direction; the biasing roller 303 is rotatably connected to the position adjusting frame 305 and has an axis of rotation in the axial direction of the heating cylinder 201; the third driving member is drivingly connected to the biasing roller 303 and is used to drive the biasing roller 303 to rotate; and the telescopic member 306 is fixedly connected between the position adjusting frame 305 and the position adjusting seat 304 and is telescopic in the moving direction of the position adjusting frame 305.

[0081] The position adjusting frame 305 is slidably arranged in the position adjusting groove of the position adjusting seat 304 fixedly connected to the rack 10, and the biasing roller 303 is rotatably connected to the position adjusting frame 305. When it is necessary to adjust the heating effect of the paper tape, the control system instructs the telescopic member 306 (such as a servo electric cylinder or a pneumatic cylinder) to act, pushes or pulls the position adjusting frame 305 to move, and the movement of the position adjusting frame 305 directly changes the spatial position of the biasing roller 303 relative to the heating cylinder 201. Moreover, during the process of the paper tape passing through the heating cylinder 201 and the biasing roller 303, the force of the biasing roller 303 pressing on the surface of the paper tape serves as a pre-pressing force, and the adjustment of the position of the biasing roller 303 can also adjust the size of the pre-pressing force on the paper tape.

[0082] When the position adjusting frame 305 drives the biasing roller 303 to move away from the heating cylinder 201, the wrap angle of the paper tape on the heating cylinder 201 decreases, and the contact arc length and the heating time of the second heating are correspondingly shortened; on the contrary, when the biasing roller 303 is pushed to be close to the heating cylinder 201, the wrap angle increases, and the intensity and duration of the second heating received by the paper tape are enhanced.

[0083] At the same time, the third driving member (such as a motor) can independently control the rotating speed of the biasing roller 303, so that it matches or forms a small speed difference with the main production line speed, thereby accurately managing the paper tape tension passing through this key turning point, ensuring that it is flatly attached and passes through the heating area at a constant speed.

[0084] In some embodiments, referring to Figure 1 and Figure 2 The heating cylinder 201 has an A end 2016 and a B end 2017.

[0085] The steam structure includes a steam generator, a steam inlet pipe 202, and a steam return pipe. The steam generator is used to generate steam, which is a prior art and will not be described here. The steam inlet pipe 202 is connected to the steam generator and the heating cylinder 201, and extends from the A end 2016 to the B end 2017 of the heating cylinder 201. The steam return pipe is connected to the steam generator and the heating cylinder 201, and is connected to the A end 2016 of the heating cylinder 201, and does not extend into the heating cylinder 201.

[0086] The high-temperature steam generated by the steam generator is injected from the A end 2016 of the heating cylinder 201 through the steam inlet pipe 202, and is transported to the farthest B end 2017 along the inlet pipe through the inside of the heating chamber 2011, and then enters the heating chamber 2011. This ensures active and forced longitudinal transportation of heat from one end to the other, effectively offsetting the temperature gradient that may be generated in the axial direction due to insufficient natural diffusion of steam.

[0087] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A steam bonding machine for paper tape, characterized in that, include: frame; The heating unit includes a heating cylinder arranged vertically, a drive structure connected to the heating cylinder, and a steam structure connected to the heating cylinder. The heating cylinder is rotatably connected to the frame. A heating chamber is provided inside the heating cylinder. The drive structure is used to drive the heating cylinder to rotate about a horizontal axis. The steam structure is used to inject steam into the heating chamber. The guiding unit includes guide rollers and guide wheels arranged vertically and vertically, and an offset roller disposed between the guide rollers and guide wheels. Both the guide rollers and guide wheels are fixed to the frame. A gap is provided between the offset roller and one of the heating cylinders for the paper feed belt to pass through. A pressing unit is located on the side of the guide unit away from the heating cylinder, and the pressing unit is used to press and laminate the paper tape.

2. The steam bonding machine for paper tape as described in claim 1, characterized in that, A partition cylinder is fixedly connected inside the heating cylinder, and multiple partition plates are fixedly connected between the partition cylinder and the heating cylinder, forming a heating zone between two adjacent partition plates; The heating unit also includes: A temperature measuring element, disposed on the guide roller, is used to monitor the surface temperature of the paper tape passing through it; and Multiple exchange components, each corresponding to a heating zone, are used to transfer steam between the heating zone and the heating chamber.

3. The steam bonding machine for paper tape as described in claim 2, characterized in that, An electric heating plate is installed inside the separator cylinder.

4. The steam bonding machine for paper tape as described in claim 2, characterized in that, The heating zone is equipped with a quick-dispersing unit, which includes a quick-dispersing roller rotatably connected to the inner wall of the heating zone, quick-dispersing blades fixed to the outer periphery of the quick-dispersing roller, and a first driving member connected to the quick-dispersing roller. The quick-dispersing blades are spiral-shaped, and the first driving member is used to drive the quick-dispersing roller to rotate about the axial direction of the heating cylinder.

5. The steam bonding machine for paper tape as described in claim 2, characterized in that, The heating chamber is equipped with a layer-breaking unit, which includes a layer-breaking cylinder rotatably connected to the partition cylinder, a plurality of layer-breaking rods fixed to the layer-breaking cylinder, and a second driving member pulsator connected to the layer-breaking cylinder. The second driving member is used to drive the layer-breaking cylinder to rotate about the axis of the heating cylinder.

6. The steam bonding machine for paper tape as described in claim 5, characterized in that, Two flexible delaminar plates are fixed to the outer periphery of the delaminar rod, and the two delaminar plates are arranged opposite each other along the axial direction of the heating cylinder.

7. The steam bonding machine for paper tape as described in claim 1, characterized in that, The pressing unit includes: The pressure wheel is rotatably connected to the frame. A pressure-bearing roller is rotatably connected to the frame, and the outer periphery of the pressure-bearing roller is provided with pressure-bearing protrusions; and The power structure is connected to the pressure roller and the pressure bearing roller, and the power structure is used to drive the pressure roller and the pressure bearing roller to rotate about the axis of the heating cylinder.

8. The steam bonding machine for paper tape as described in claim 7, characterized in that, The pressure roller has a coating cavity inside, and the outer wall of the pressure roller has an injection port that communicates with the coating cavity. A guide column is slidably arranged inside the injection port, and the guide column has a through-flow guide channel. A sealing plate is rotatably connected to the inner wall of the coating cavity. A deformation member is provided to rotatably connect the sealing plate to the inner wall of the coating cavity. The deformation member has a pre-tightening force that causes the sealing plate to rotate in the direction of the adhesive guide post. The sealing plate has a through adhesive passage. The structure inside the pressure-bearing protrusion is the same as the structure inside the pressure-applying wheel.

9. The steam bonding machine for paper tape as described in claim 1, characterized in that, The guiding unit further includes: An adjustment seat is fixedly connected to the frame, and the adjustment seat is provided with an adjustment groove; The adjusting frame is slidably disposed in the adjusting groove. The adjusting frame moves in the horizontal direction. The offset roller is rotatably connected to the adjusting frame. The offset roller rotates about the axial direction of the heating cylinder. A third driving member is connected to the offset roller, and the third driving member is used to drive the offset roller to rotate; and The telescopic component is fixed between the adjusting frame and the adjusting seat, and extends and retracts along the moving direction of the adjusting frame.

10. The steam bonding machine for paper tape as described in claim 1, characterized in that, The heating cylinder has end A and end B; The steam structure includes: A steam generator is used to produce steam. A steam inlet pipe, connecting the steam generator and the heating cylinder, extends from end A to end B of the heating cylinder; and A steam return pipe connects the steam generator and the heating cylinder. The steam return pipe is connected to end A of the heating cylinder and does not extend into the heating cylinder.

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