Steam permeable guide roller

Abstract

The utility model discloses a kind of steam guide roller, comprising: guide roller main body, first connecting piece and second connecting piece are connected to the both ends of guide roller main body, guide roller inner cavity is formed in the inside of guide roller main body, steam hole, which is communicated with guide roller inner cavity, is equipped on the guide roller main body, steam passage, which is communicated with the guide roller inner cavity, is equipped in the inside of first connecting piece and / or second connecting piece;Steam pipe is sleeved on the outer surface of the guide roller main body, the steam pipe has uniformly distributed micropore structure;Two groups of bearing groups, two groups of bearing group are respectively connected with first connecting piece and second connecting piece;Steam rotary joint, the steam rotary joint is connected with first connecting piece and / or second connecting piece provided with steam passage, for continuously supplying high-temperature steam to steam passage.The utility model makes raw paper moisture even not to bend and warp not to deform, greatly improve the quality and speed of paperboard, improve the profit value of enterprise.

Description

Technical Field

[0001] This utility model relates to the technical field of corrugated paper production equipment, and in particular to a steam-permeable guide roller. Background Technology

[0002] In recent years, with the rapid development of e-commerce, logistics, and packaging industries, corrugated cardboard, as a core category of packaging materials, has seen a continuous increase in market demand. Corrugated cardboard production line companies typically need to purchase raw paper. However, due to variations in the quality of raw paper produced by different manufacturers, differences in storage time and environmental conditions (heat and humidity), and seasonal changes, the moisture content of the raw paper is uneven. This uneven moisture content leads to uneven tension, warping, and deformation in the produced cardboard, resulting in a large amount of waste paper. This waste of raw paper and glue per day of production hinders quality and speed, significantly increasing labor and time costs. This cost loss is a significant concern in corrugated cardboard production lines, greatly increasing the difficulty of producing high-quality cardboard. Utility Model Content

[0003] The purpose of this invention is to overcome the above-mentioned defects in the prior art and provide a permeable guide roller. This invention makes the moisture content of the base paper uniform, preventing warping and deformation, which greatly improves the quality and speed of the paperboard and increases the profit of enterprises.

[0004] To achieve the above objectives, this utility model provides a steam-permeable guide roller, comprising:

[0005] The guide roller body has a first connector and a second connector at both ends. An inner cavity is formed inside the guide roller body. The guide roller body is provided with a steam vent that communicates with the inner cavity. A steam delivery channel that communicates with the inner cavity is provided inside the first connector and / or the second connector.

[0006] A permeable pipe is sleeved on the outer surface of the guide roller body, and the permeable pipe has a uniformly distributed microporous structure;

[0007] Two sets of bearing assemblies, each set of bearing assemblies being connected to the first connecting member and the second connecting member respectively;

[0008] A steam rotary joint, which is connected to a first connector and / or a second connector that is provided with a steam transmission channel, is used to continuously supply high-temperature steam to the steam transmission channel.

[0009] Furthermore, the steam permeation pipe is a tubular component made of bubble stone. The micropores of the bubble stone steam permeation pipe can evenly disperse steam, avoiding local overheating or uneven steam injection, and effectively regulating the moisture content of the base paper.

[0010] Furthermore, each bearing assembly includes a bearing housing and a bearing. A support frame is provided in the middle of the bearing housing, and the bearing is disposed within the support frame. Fixed portions extend outward from both sides of the bearing housing to form fixed joints, and mounting holes are provided on the fixed joints. The bearing housing is fixed to the frame of the corrugated paper production equipment through the mounting holes on the fixed joints, ensuring the stable operation of the guide roller body.

[0011] Furthermore, the support frame is positioned higher than the fixed connection, allowing it to be suspended in mid-air. This design raises the center of gravity of the bearing assembly, reducing vibration amplitude, improving operational stability, and effectively minimizing tension fluctuations in the raw paper during transport.

[0012] Furthermore, the air permeation pipe is fixed to the outer surface of the guide roller body by an interference fit. The interference fit ensures that the air permeation pipe is tightly connected to the guide roller body, avoiding eccentricity or shaking caused by loosening during operation, and ensuring that the raw paper runs smoothly on the surface of the guide roller.

[0013] Furthermore, both the first and second connecting members are provided with a first stepped portion and a second stepped portion. The first stepped portion is connected to the bearing, and the second stepped portion of the first and / or second connecting members is connected to the steam rotary joint. The two stepped portions enable a tighter installation and more even force distribution, effectively preventing axial displacement or loosening during operation, ensuring stable and reliable steam transmission, and extending the service life of the equipment.

[0014] Furthermore, the steam perforations are evenly spaced on the guide roller body. This even spacing ensures that steam is released uniformly from the inner cavity of the guide roller through the microporous steam perforation tube, effectively avoiding warping or strength reduction caused by uneven heating of the base paper. At the same time, the evenly distributed steam perforations work synergistically with the air bubble steam perforation tube to improve steam diffusion efficiency, making the moisture control of the base paper more precise and significantly improving the corrugated board forming quality.

[0015] Furthermore, the steam perforation hole can be circular or conical. Circular holes are easier to process and have less stress concentration, making them suitable for medium and low pressure steam conditions; conical holes, due to their gradually expanding inner cavity structure, enhance the steam injection guidance, which helps to improve the uniformity of steam distribution and penetration efficiency, making them particularly suitable for high humidity control scenarios. The two hole types can be flexibly selected according to actual production needs, taking into account both energy efficiency and molding quality.

[0016] Furthermore, the inner cavity of the guide roller and the axis of the steam delivery channel are on the same horizontal line. This coaxial design ensures that steam is uniformly delivered along the axial direction of the guide roller, avoiding uneven steam distribution caused by eccentric flow, further improving heat transfer efficiency and consistency of paper drying. At the same time, combined with the optimized sealing of the steam rotary joint, it effectively reduces the risk of steam leakage during operation and ensures the stability of continuous production.

[0017] Furthermore, it also includes a locking component. After the vent pipe is sleeved on the outer surface of the guide roller body, the vent pipe is flush with both sides of the guide roller body. The locking component is sleeved on the first stepped portion and fixed to the guide roller body. The locking component wraps around both sides of the vent pipe and the guide roller body, so that the vent pipe remains stable and does not shift during high-speed operation, effectively preventing loosening of the connection or failure of the seal due to vibration.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention introduces high-temperature steam through a steam rotary joint, which enters the inner cavity of the guide roller via a steam conveying channel. The steam is then evenly released onto the surface of the steam permeation pipe through the steam permeation holes. The steam is then continuously released to the base paper through the microporous structure, effectively regulating the moisture distribution of the base paper. This ensures that the paper is heated evenly and maintains consistent tension during operation, preventing the base paper from warping or deforming. This significantly improves the quality and speed of the paperboard, thereby increasing the company's profit margin. Attached Figure Description

[0020] To more clearly illustrate the technology in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a steam-permeable guide roller according to Embodiment 1 of this utility model;

[0022] Figure 2 This is a schematic diagram of the guide roller body and the steam pipe of Embodiment 1 of this utility model;

[0023] Figure 3 This is a cross-sectional schematic diagram of the guide roller body and the steam pipe after assembly in Embodiment 1 of this utility model;

[0024] Figure 4 This is a cross-sectional schematic diagram of the guide roller body and the steam pipe after assembly in Embodiment 2 of this utility model;

[0025] Figure 5 This is a schematic diagram of the present invention installed on a corrugated paper production equipment.

[0026] The diagram includes:

[0027] 1. Guide roller body; 11. First connecting piece; 12. Second connecting piece; 13. Guide roller inner cavity; 14. Steam vent; 15. First step; 16. Second step; 17. Steam delivery channel; 18. Locking piece; 2. Steam vent pipe; 3. Bearing assembly; 31. Bearing seat; 311. Support frame; 312. Fixed connection; 313. Mounting hole; 32. Bearing; 4. Steam rotary joint; 5. Preheating cylinder; 6. Support; 7. Base paper. Detailed Implementation

[0028] The technology of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiment is one embodiment of this utility model, and not all embodiments. Based on this embodiment of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second", such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0031] Example 1

[0032] Please see Figures 1 to 3 An embodiment of this utility model provides a steam permeation guide roller, including a guide roller body 1, a steam permeation pipe 2, two sets of bearing assemblies 3, and a steam rotary joint 4;

[0033] like Figure 1 and Figure 2 As shown, the guide roller body 1 of this embodiment is connected to the two ends of a first connector 11 and a second connector 12. Preferably, the air-permeable guide roller is made of stainless steel, which has good high temperature resistance and corrosion resistance, ensuring structural stability and resistance to deformation during long-term operation. At the same time, the surface is precision polished, which effectively reduces the coefficient of friction and reduces the wear of the paper during the transmission process.

[0034] A guide roller cavity 13 is formed inside the guide roller body 1. A steam vent 14 communicating with the guide roller cavity 13 is provided on the guide roller body 1. The steam vent 14 is evenly and equidistantly arranged on the guide roller body 1. The equidistant arrangement ensures that steam is evenly released from the guide roller cavity 13 through the microporous steam vent 2, effectively avoiding warping or strength reduction caused by uneven local heating of the base paper.

[0035] like Figure 2 and Figure 3 As shown, in this embodiment, the air permeation hole 14 is a circular hole with a diameter ranging from 0.8 mm to 1.2 mm and a distribution spacing of 5 mm to 8 mm. This design of hole diameter and spacing ensures uniform air permeation while effectively preventing the paper fibers from clogging the holes and improving the stability of the guide roller operation. Of course, the hole diameter and distribution spacing can also be adjusted according to the actual working conditions, as long as the basic principle of uniform air permeation and no clogging is met. The edges of the circular holes are rounded to further reduce the risk of scratching the surface of the paper.

[0036] In other embodiments, the steam perforation hole 14 can be configured as a conical hole, with its large end facing the outer surface of the guide roller and its small end entering the inner cavity 13 of the guide roller. This structure is conducive to guiding the directional diffusion of steam and enhancing the steam perforation efficiency. At the same time, it reduces the possibility of fibers embedding deep into the pores. The inclined inner wall of the conical hole can also promote the return of condensate and avoid accumulation that affects the heat transfer effect. In practical applications, different hole type combinations can be selected according to the basis weight of the base paper and the running speed to achieve the optimal process adaptation.

[0037] To ensure the rotation of the guide roller body 1, two sets of bearing assemblies 3 are provided in this embodiment. The two sets of bearing assemblies 3 are respectively connected to the first connecting member 11 and the second connecting member 12. Specifically, each bearing assembly 3 includes a bearing seat 31 and a bearing 32. A support frame 311 is provided in the middle of the bearing seat 31, and the bearing 32 is fixedly disposed within the support frame 311. Fixed connection portions 312 extend outward from both sides of the bearing seat 31, and mounting holes 313 are provided on the fixed connection portions 312. Figure 1 As shown, the support frame 311 is positioned higher than the fixed part 312, allowing the support frame 311 to be suspended. This structure ensures that after the fixed part 312 is fixed to the frame, there is a certain height difference between the lowest point of the guide roller body 1 and the installation position of the fixed part 312, facilitating the passage of the raw paper. At the same time, the suspended design of the support frame 311 reduces heat conduction between the bearing seat 31 and the frame, preventing the bearing 32 from overheating due to the high temperature operation of the guide roller and extending the service life of the bearing 32. Furthermore, the two sets of bearing groups 3 are symmetrically arranged at both ends of the guide roller body 1, ensuring the balance and coaxiality of the rotating support and effectively reducing the vibration amplitude under high-speed operation.

[0038] In this embodiment, both the first connecting member 11 and the second connecting member 12 are provided with a first stepped portion 15 and a second stepped portion 16. The outer diameter of the first stepped portion 15 is larger than the outer diameter of the second stepped portion 16. The first stepped portion 15 can be directly connected to the bearing 32 during assembly to enable the guide roller body 1 to rotate. The second stepped portion 16 is connected to the steam rotary joint 4 to continuously supply high-temperature steam to the steam transmission channel 17. The steam rotary joint 4 can be a commercially available steam rotary joint 4. The setting of the two stepped portions can make the installation tighter and the force more balanced, effectively preventing axial displacement or loosening of the connection during operation, ensuring stable and reliable steam transmission, and extending the service life of the equipment.

[0039] A steam delivery channel 17 communicating with the inner cavity 13 of the guide roller is provided inside the first connector 11 and / or the second connector 12. The axis of the inner cavity 13 of the guide roller and the axis of the steam delivery channel 17 are on the same horizontal line. The coaxial design of the steam delivery channel 17 and the inner cavity 13 of the guide roller ensures that the steam is uniformly delivered along the axial direction of the guide roller, avoiding the problem of uneven steam distribution caused by eccentric flow, further improving the heat transfer efficiency and the consistency of paper drying. At the same time, combined with the sealing optimization of the steam rotary joint 4, the risk of steam leakage during operation is effectively reduced, ensuring the stability of continuous production.

[0040] Furthermore, it should be noted that the connection between the second step 16 and the steam rotary joint 4 specifically refers to the fact that the steam rotary joint 4 is only needed when steam passages 17 are provided on the first connecting member 11 and the second connecting member 12; otherwise, the steam rotary joint 4 is not required. Figure 2 As shown, in this embodiment, only the second connector 12 is provided with a steam transmission channel 17, while the first connector 11 is a closed structure. The first connector 11 does not need to be provided with an additional steam transmission channel 17. During operation, the second connector 12 is connected to the steam rotary joint 4, which is connected to an external steam supply system, so that steam can enter the inner cavity 13 of the guide roller from the right side.

[0041] In other embodiments, where steam needs to be input from the left side, a steam delivery channel 17 can be provided on the first connector 11, and a steam rotary joint 4 can be connected to the first connector 11. In this case, the second connector 12 is a closed structure and does not require an additional steam delivery channel 17. Of course, in another embodiment, both the first connector 11 and the second connector 12 are provided with steam delivery channels 17, and both the first connector 11 and the second connector 12 can be connected to the steam rotary joint 4 to achieve dual-sided steam supply. This is suitable for long-width, high-speed operation, further improving the uniformity and response speed of steam supply, ensuring consistent temperature distribution along the entire length of the guide roller, and meeting the requirements of high-end paper drying processes.

[0042] The steam permeable pipe 2 is sleeved on the outer surface of the guide roller body 1. The steam permeable pipe 2 has a uniformly distributed microporous structure. Specifically, in this embodiment, the steam permeable pipe 2 is a tubular component made of bubble stone material. The micropores of the bubble stone steam permeable pipe 2 can evenly disperse steam, avoid local overheating or uneven steam injection, and effectively regulate the moisture content of the base paper.

[0043] In this embodiment, the inner diameter of the steam permeable tube 2 matches the outer diameter of the guide roller body 1, so that the steam permeable tube 2 is fixed to the outer surface of the guide roller body 1 by interference fit. The interference fit ensures that the steam permeable tube 2 and the guide roller body 1 are tightly connected, avoiding eccentricity or shaking caused by loosening during operation, and ensuring that the raw paper runs smoothly on the surface of the guide roller.

[0044] like Figure 5 As shown, this utility model is used in corrugated paper production equipment, such as automatic gluing machines. Its principle is to first use this utility model to evenly expel steam and moisture from the roller surface of the steam permeation pipe 2, thereby heating the base paper 7 and allowing it to absorb the steam and moisture. Then, the paper is preheated by the preheating cylinder 5 on the automatic gluing machine before bonding. During installation, this utility model is directly mounted on the support 6 of the production equipment via the fixing part 312, placing it in front of the preheating cylinder 5. During operation, the base paper 7 is in close contact with the outer surface of the steam permeation pipe 2, and the guide roller body 1 rotates along with the base paper 7. Steam and moisture can be injected into the inner cavity 13 of the guide roller through the external steam system connected to the steam rotary joint 4. The steam and moisture enter the steam permeation pipe 2 through the steam permeation hole 14 inside the inner cavity 13 of the guide roller. In this embodiment, the steam permeation pipe 2 is an air bubble stone component. The air bubble stone can be permeable to air and water, so that the steam and moisture can flow out evenly from the roller surface, thereby allowing the base paper 7 to absorb the steam and moisture when heated. This effectively regulates the moisture distribution of the base paper 7, so that it is heated evenly and has consistent tension during operation, preventing the base paper 7 from bending or deforming. Finally, after preheating by the preheating cylinder 5, it enters the subsequent production process.

[0045] Example 2

[0046] The difference between this embodiment and Embodiment 1 is that, as Figure 4 As shown, the steam permeation pipe 2 can be fixed to the guide roller body 1 by the locking member 18 to adapt to the disassembly and assembly requirements under different working conditions, as shown in the figure. Figure 4 As shown, after the steam permeation pipe 2 is sleeved on the outer surface of the guide roller body 1, the steam permeation pipe 2 is flush with both sides of the guide roller body 1. The locking member 18 is sleeved on the first step portion 15 and fixed to the guide roller body 1. The locking member 18 wraps around both sides of the steam permeation pipe 2 and the guide roller body 1, so that the steam permeation pipe 2 remains stable and does not shift during high-speed operation, effectively preventing loosening of the connection or failure of the seal due to vibration. The locking member 18 can be a ring-shaped clamp, or a detachable structure such as screw locking, installed on both sides of the guide roller body 1. Alternatively, an elastic clamp or a quick-release locking ring can be selected according to actual assembly requirements to achieve quick installation and positioning of the steam permeation pipe 2. Everything else is the same as in Embodiment 1, and the technical effect of Embodiment 1 is also achieved.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A steam-permeable guide roller, characterized in that, include: The guide roller body (1) has a first connector (11) and a second connector (12) connected to both ends. A guide roller cavity (13) is formed inside the guide roller body (1). A steam permeable hole (14) communicating with the guide roller cavity (13) is provided on the guide roller body (1). A steam conveying channel (17) communicating with the guide roller cavity (13) is provided inside the first connector (11) and / or the second connector (12). A permeable pipe (2) is sleeved on the outer surface of the guide roller body (1), and the permeable pipe (2) has a uniformly distributed microporous structure; Two sets of bearing assemblies (3) are respectively connected to the first connecting member (11) and the second connecting member (12); A steam rotary joint (4) is connected to a first connector (11) and / or a second connector (12) provided with a steam transmission channel (17) for continuously supplying high-temperature steam to the steam transmission channel (17).

2. The steam-permeable guide roller according to claim 1, characterized in that, The steam permeation pipe (2) is a tubular component made of bubble stone.

3. The steam-permeable guide roller according to claim 1, characterized in that, Each bearing assembly (3) includes a bearing housing (31) and a bearing (32). A support frame (311) is provided in the middle of the bearing housing (31), and the bearing (32) is located in the support frame (311). Fixed parts (312) are formed by extending outward from both sides of the bearing housing (31), and mounting holes (313) are provided on the fixed parts (312).

4. A steam-permeable guide roller according to claim 3, characterized in that, The support frame (311) is positioned higher than the fixed part (312), so that the support frame (311) is suspended in the air.

5. A steam-permeable guide roller according to claim 1, characterized in that, The steam pipe (2) is fixed to the outer surface of the guide roller body (1) by interference fit.

6. A steam-permeable guide roller according to claim 3, characterized in that, The first connector (11) and the second connector (12) are each provided with a first step (15) and a second step (16). The first step (15) is connected to the bearing (32), and the second step (16) of the first connector (11) and / or the second connector (12) is connected to the steam rotary joint (4).

7. A steam-permeable guide roller according to claim 1, characterized in that, The ventilation holes (14) are evenly spaced on the guide roller body (1).

8. A steam-permeable guide roller according to claim 7, characterized in that, The vent (14) is a circular or conical hole.

9. A steam-permeable guide roller according to claim 1, characterized in that, The inner cavity (13) of the guide roller and the axis of the steam transmission channel (17) are on the same horizontal line.

10. A steam-permeable guide roller according to claim 6, characterized in that, It also includes a locking member (18). After the steam pipe (2) is sleeved on the outer surface of the guide roller body (1), the steam pipe (2) is flush with both sides of the guide roller body (1). The locking member (18) is sleeved on the first step portion (15) and fixed to the guide roller body (1). The locking member (18) wraps around the steam pipe (2) and both sides of the guide roller body (1).

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