Vapor spraying device of tile mounting machine for preparing corrugated boards

Abstract

The utility model relates to a steam spraying device of a tile mounting machine for preparing a corrugated board, and belongs to the technical field of corrugated board production, the steam spraying device comprises heating assemblies mounted between an upper preheating roller and an upper press roller system and between a lower preheating roller and a lower press roller system, and each heating assembly comprises an arc-shaped heating plate or a steam spraying part. The steam spraying component comprises a heating box and a steam inlet pipe used for supplying low-pressure steam to the interior of the heating box, one end of the steam inlet pipe communicates with the interior of the heating box, the communicating position is located on the lower plane of the heating box, and a plurality of steam spraying holes are formed in the upper plane of the heating box and distributed in the upper plane of the heating box. The upper plane of the heating box abuts against corrugated base paper in a sliding mode. The corrugated paper gluing device has the effects that sufficient temperature is provided for gelatinization of a glue solution needed by corrugated paper bonding, the paperboard bonding firmness is improved, and the corrugated paper board production speed is increased.

Description

Technical Field

[0001] This application relates to the technical field of corrugated paper production, and in particular to a steam injection device for a corrugated board laminating machine. Background Technology

[0002] Currently, corrugated paper laminating machines, also known as single-sided laminating machines or flute-forming machines, are essential equipment for producing corrugated paper. They mainly consist of pressure rollers, upper and lower corrugated pressure roller systems, glue rollers, glue tanks, doctor blades, guide rollers, and other components. Widely used in industries such as carton packaging, they can effectively improve production efficiency and product quality.

[0003] When a corrugated board machine produces double-walled two-layer cardboard and single-walled single-walled two-layer cardboard, the two sheets of paper are heated by the linerboard and corrugated paper preheating rollers respectively before being fed into the pressure roller system and the corrugated roller for pressing.

[0004] However, there is still some gap between the preheating roll and the corrugated roll and pressure roll system. This gap is due to the mechanical structure and the need for paper feeding. Often, the temperature of the preheated base paper drops in this gap, and some heat is lost, which in turn affects the bonding speed and bonding effect. Utility Model Content

[0005] In order to provide sufficient temperature for the gelatinization of the adhesive, improve the bonding strength of the paperboard, and increase the production speed of corrugated paperboard, this application provides a steam injection device for preparing a corrugated paperboard laminating machine.

[0006] The steam injection device for preparing corrugated cardboard laminating machine provided in this application adopts the following technical solution:

[0007] A steam injection device for a corrugated cardboard laminating machine includes heating components installed between the upper preheating roller and the upper pressure roller system, and between the lower preheating roller and the lower pressure roller system. The heating components include an arc-shaped heating plate or a steam injection component. The steam injection component includes a heating chamber and a steam inlet pipe for supplying low-pressure steam into the heating chamber. One end of the steam inlet pipe is connected to the interior of the heating chamber, and the connection point is located on the lower surface of the heating chamber. A condensate drain pipe is connected to the lower surface of the heating chamber. The condensate drain pipe and the steam inlet pipe are spaced apart along the diagonal direction of the heating chamber. Steam injection holes are opened on the upper surface of the heating chamber. Multiple steam injection holes are opened and distributed on the upper surface of the heating chamber. The upper surface of the heating chamber slides against the corrugated base paper. The arc-shaped heating plate is used to heat the corrugated base paper.

[0008] By adopting the above technical solution, the structural design of this heating component can effectively increase the temperature of the corrugated base paper, ensuring the bonding quality and production efficiency of the cardboard. Specifically, the installation of an arc-shaped heating plate or steam injection component between the upper preheating roller and the upper pressure roller system, and a heating component between the lower preheating roller and the lower pressure roller system, allows for targeted heating of the corrugated base paper during the paper feeding process, compensating for heat loss during transport. The design of the steam injection component, with its heating box having a steam inlet pipe connected to the lower surface and multiple steam injection holes on the upper surface that slide against the corrugated base paper, ensures that low-pressure steam is evenly injected onto the corrugated paper, guaranteeing uniform heating. This design maintains a suitable temperature for the corrugated paper, promotes adhesive gelatinization, improves the bonding speed and effect of the cardboard, thereby enhancing the production quality and efficiency of corrugated cardboard.

[0009] Optionally, the heating box is rectangular, with square steel bars on its left and right outer sides. Adjustment components, including a motor, gear, rack, and piston, are installed on the left and right sides of the heating box and are inserted into and slidably engaged with it. The output end of the motor is fixedly connected to the center of the gear, which meshes with the rack. The rack is positioned along the length and width of the heating box, with one end extending into the interior of the heating box. The middle part of the rack is fixedly connected to the square steel bars, which are perpendicular to the rack and positioned horizontally. Multiple pistons are provided, spaced apart along the length of the square steel bars and fixedly connected to them. The rack and pistons are slidably positioned relative to the heating box, sliding back and forth along the width of the heating box. The circumferential sidewalls of the pistons slide against the inner wall of the heating box. All steam injection holes are arranged in multiple rows on the top of the heating box corresponding to the number of pistons, with adjacent steam injection holes in a single row spaced apart along the sliding direction of their respective pistons.

[0010] By employing the above technical solution, the motor drives the gear to rotate, which in turn drives the meshing rack to slide along the left and right width direction of the heating chamber. Since one end of the rack is fixedly connected to the piston, the piston slides back and forth within the heating chamber along with the rack. By controlling the forward and reverse rotation and the number of rotations of the motor, the position of the piston within the heating chamber can be precisely adjusted. When producing corrugated cardboard of different widths, the piston can be moved to a suitable position so that steam is only injected from the steam jet holes corresponding to the width of the corrugated cardboard, avoiding steam injection outside the corrugated cardboard, reducing steam waste, and improving energy efficiency. At the same time, precise control of the steam injection range ensures that all parts of the corrugated cardboard receive uniform and appropriate heating, effectively promoting glue gelation and improving the bonding quality and production stability of the corrugated cardboard.

[0011] Optionally, the adjustment components are provided in two sets, and the two sets of adjustment components are symmetrically distributed at both ends of the heating box along the length and width of the heating box; the steam inlet pipe and the condensate drain pipe are respectively connected to the heating box and are both located between the two sets of adjustment components.

[0012] By adopting the above technical solution and setting up the two sets of adjustment components, the steam injection device can more flexibly adjust the steam injection range according to the actual width of the corrugated cardboard, effectively improving energy utilization efficiency and the production quality of corrugated cardboard.

[0013] Optionally, the piston is a graphite piston.

[0014] By adopting the above technical solution, graphite possesses excellent self-lubricating properties, resulting in a low coefficient of friction between the graphite piston and the inner wall of the heating chamber as the piston slides back and forth along the width direction within the chamber. This smoother movement effectively reduces mechanical wear. This not only reduces energy loss due to friction but also prevents excessive wear from increasing the gap between the piston and the inner wall of the heating chamber, thus preventing steam leakage and ensuring the stability and uniformity of steam injection, which helps improve the bonding quality of corrugated cardboard. Furthermore, graphite's chemical stability means it will not chemically react with steam or heating chamber materials in the low-pressure steam environment of the heating chamber, exhibiting good corrosion resistance. This allows the graphite piston to maintain good performance over a long period, reducing damage and replacement frequency caused by corrosion, lowering equipment maintenance costs, and improving the overall operating efficiency and reliability of the corrugated board laminating machine.

[0015] Optionally, the arc-shaped heating plate is hollow inside and filled with high-pressure saturated steam. The arc-shaped heating plate is arranged with its arc-shaped convex surface facing upwards and is used to press against and slide against the corrugated base paper.

[0016] By adopting the above technical solution, the curved heating plate is hollow inside and filled with high-pressure saturated steam. This high-pressure saturated steam contains a large amount of heat energy, providing a continuous and powerful heat source for the heating plate. When the corrugated base paper slides and contacts the curved convex surface of the heating plate, the heating plate can quickly and evenly transfer the heat of the steam to the corrugated base paper, rapidly raising its temperature to meet the heat requirements for glue gelation and effectively improving the bonding strength of the cardboard. The upward-facing curved convex surface conforms to the transport path of the corrugated base paper, allowing it to slide taut on the heating plate, ensuring proper paper tension and preventing wrinkles, delamination, and bubbles when the corrugated base paper is pressed into corrugated cardboard.

[0017] Optionally, the arc-shaped heating plate is a chrome-plated arc-shaped heating plate.

[0018] By adopting the above technical solution, the chrome plating layer has high hardness, effectively resisting the friction generated when the corrugated base paper slides on the surface of the curved heating plate. This prevents scratches and wear on the heating plate surface, extends the service life of the heating plate, and reduces equipment replacement and maintenance costs. The chrome plating layer also possesses excellent corrosion resistance, preventing rust and corrosion in the humid, high-temperature working environment where high-pressure saturated steam flows inside the heating plate, ensuring stable performance. Furthermore, chromium has good thermal conductivity, and the chrome plating layer optimizes the heat transfer process from the heating plate to the corrugated base paper, resulting in more uniform and efficient heat conduction. This helps improve the heating effect and adhesive bonding quality of the corrugated base paper, thereby enhancing the bonding quality and production efficiency of the corrugated board.

[0019] Optionally, the arc-shaped heating plate is an arc-shaped heating plate with a finely ground upper arc surface.

[0020] By adopting the above technical solution, the friction between the corrugated base paper and the heating plate is reduced after fine grinding, making the paper transfer smoother, reducing the risk of paper damage, and ensuring the continuity and stability of the production process.

[0021] Optionally, the steam injection components are also located in the middle of the corrugated board machine to heat up the double-walled cardboard produced by the upper and lower pressure roller systems and increase its bonding strength.

[0022] By adopting the above technical solution, a double-walled cardboard with convex-to-convex bonding is rolled out from the middle of the corrugated board machine by two sets of pressure rollers. The steam injection component can promptly replenish the heat of the double-walled cardboard, compensate for the temperature loss during rolling and transportation, and allow the adhesive to fully gelatinize and quickly set, effectively improving the bonding strength between the layers of the double-walled cardboard and enhancing the overall strength and stability of the cardboard.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The gap between the upper preheating roller and the upper pressure roller system is relatively large. To address this, an arc-shaped heating plate with a finely ground and chrome-plated upper arc surface is added to provide continuous heating to the upper corrugated base paper without gaps, thus providing sufficient temperature for the paste to gelatinize and bond.

[0025] 2. A steam injection component is added to the gap between the lower preheating roller and the lower pressure roller system at the bottom of the corrugated board machine for preheating the lower corrugated base paper. The steam injection component is equipped with multiple sets of adjustment components, which are embedded inside the rectangular heating box. When producing corrugated board of different widths, the piston can be moved to the appropriate position so that only the steam injection holes corresponding to the width of the corrugated board inject steam, avoiding steam injection into areas outside the corrugated board and reducing steam waste. Not only can the steam injection holes on the heating box transfer heat, but the rest of the upper surface of the heating box also transfer heat.

[0026] 3. The steam injection components are also distributed in the middle of the corrugated board machine. In the middle of the corrugated board machine, after a double-walled cardboard with convex-convex bonding is rolled out by two sets of pressure rollers, the steam injection components can compensate for the double-walled cardboard by adding some glue gelling and bonding temperature, thereby improving the bonding strength. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the location distribution of the steam injection device and the corrugated paper processing flow line in an embodiment of this application;

[0028] Figure 2 This is a top view of the heating chamber;

[0029] Figure 3 yes Figure 2 Structural cross-sectional view at point AA;

[0030] Figure 4 This is a schematic diagram of a partial structure to illustrate the distribution of multiple pistons.

[0031] In the diagram, 1. Steam injection component; 11. Heating box; 111. Steam injection hole; 12. Steam inlet pipe; 13. Condensate drain pipe; 2. Arc-shaped heating plate; 3. Upper preheating roller; 4. Upper pressure roller system; 5. Lower pressure roller system; 6. Lower preheating roller; 7. Adjustment assembly; 71. Motor; 72. Gear; 73. Rack; 74. Piston; 75. Square steel bar. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0033] This application discloses a steam injection device for a corrugated cardboard laminating machine.

[0034] refer to Figure 1 A steam injection device for a corrugated cardboard laminating machine includes a heating assembly, which is distributed at the upper and lower parts of the laminating machine, specifically between the upper preheating roller 3 and the upper pressure roller system 4, and between the lower preheating roller 6 and the lower pressure roller system 5. The heating assembly includes a steam injection component 1 and an arc-shaped heating plate 2. In this embodiment, the arc-shaped heating plate 2 is disposed between the upper preheating roller 3 and the upper pressure roller system 4, and the steam injection component 1 is disposed between the lower preheating roller 6 and the lower pressure roller system 5.

[0035] refer to Figure 1 The arc-shaped heating plate 2, with its convex arc facing upwards, slides in contact with the corrugated base paper. The arc-shaped heating plate 2 is hollow and filled with high-pressure saturated steam. It is chrome-plated with a finely ground upper arc surface. Due to the large gap between the upper preheating roller 3 and the upper pressure roller system 4, an additional chrome-plated, finely ground upper arc surface is added to provide continuous, uninterrupted heating to the upper corrugated base paper, ensuring sufficient temperature for the paste-forming and bonding of the adhesive.

[0036] refer to Figure 1 , Figure 2 and Figure 3 The steam injection component 1 includes a heating box 11 and a steam inlet pipe 12. The heating box 11 is rectangular, and multiple steam injection holes 111 are evenly distributed on the upper surface of the heating box 11. One end of the steam inlet pipe 12 is connected to the interior of the heating box 11, and the connection point is located on the lower surface of the heating box 11. A condensate drain pipe 13 is connected to the lower plane of the heating box 11, and the condensate drain pipe 13 and the steam inlet pipe 12 are spaced apart along the diagonal direction of the heating box 11. The heating box 11 is arranged horizontally, and its width direction is perpendicular to the direction of corrugated paper transport.

[0037] refer to Figure 2 , Figure 3 and Figure 4 The heating chamber 11 is equipped with two sets of adjustment components 7. Square steel bars 75 are arranged on the left and right outer sides of the heating chamber 11, and the number of square steel bars 75 corresponds to the number of adjustment components 7. The adjustment components 7 include a motor 71, a gear 72, a rack 73, and a piston 74. The output end of the motor 71 is fixedly connected to the center of the gear 72. The gear 72 meshes with the rack 73. The rack 73 is arranged along the left and right width direction of the heating chamber 11 and one end extends into the interior of the heating chamber 11. The middle part of the rack is fixedly connected to the square steel bars 75. The square steel bars 75 are perpendicular to the rack 73 and arranged in the horizontal direction. Multiple pistons 74 are arranged at intervals along the length direction of the square steel bars 75 and are fixedly connected to the square steel bars 75. The rack 73 and the pistons 74 are slidably arranged relative to the heating chamber 11, and the sliding direction is reciprocating along the left and right width direction of the heating chamber 11. The circumferential sidewall of the piston 74 slides against the inner wall of the heating chamber 11. Two sets of adjustment components 7 are symmetrically distributed at both ends of the heating chamber 11 along its width. The pistons 74 on the two sets of adjustment components 7 slide within the heating chamber 11 in directions that move closer or further apart. Correspondingly, multiple rows of steam injection holes 111 are opened on the top of the heating chamber 11, with adjacent steam injection holes 111 in a single row spaced apart along the sliding direction of the corresponding piston 74. Not only can the steam injection holes 111 on the heating chamber 11 transfer heat, but the rest of the upper surface of the heating chamber 11 also transfers heat.

[0038] refer to Figure 3 and Figure 4The motor 71 is a servo geared motor 71. The steam inlet pipe 12 connects to the heating box 11, and the condensate drain pipe 13 connects to the heating box 11, both located between the two sets of adjustment components 7. Low-pressure steam is introduced into the heating box 11 through the steam inlet pipe 12, and the low-pressure steam is ejected through the steam injection hole 111. The condensate drain pipe 13 discharges the condensate, thus achieving heat circulation. The piston 74 is a graphite piston 74. The heating box 11 is made of stainless steel. The motor 71 can be directly fixed to the frame of the tile mounting machine; its position can be adjusted adaptively and is not limited here.

[0039] refer to Figure 1 The corrugated board machine is also equipped with a steam injection component 1 in the middle. The steam injection component 1 is arranged at the paper output of the upper pressure roller system 4 and the lower pressure roller system 5. After a double-walled two-layer cardboard with convex-convex bonding is rolled out from the two sets of pressure roller systems in the middle of the corrugated board machine, the steam injection component 1 can compensate for the double-walled cardboard by adding some glue gelling and bonding temperature, thereby improving the bonding strength.

[0040] The implementation principle of the steam injection device for a corrugated cardboard laminating machine according to an embodiment of this application is as follows: An arc-shaped heating plate 2 or steam injection component 1 is installed between the upper preheating roller 3 and the upper pressure roller system 4, and a steam injection component 1 is installed between the lower preheating roller 6 and the lower pressure roller system 5. This allows for targeted heating of the corrugated base paper during the paper feeding process, compensating for heat loss during transmission. A motor 71 drives a gear 72 to rotate, which in turn drives a meshing rack 73 to slide along the left and right width direction of the heating chamber 11. Since one end of the rack 73 is fixedly connected to a piston 74, the piston 74 slides back and forth within the heating chamber 11 along with the rack 73. By controlling the forward and reverse rotation and the number of rotations of the motor 71, the position of the piston 74 within the heating chamber 11 can be precisely adjusted. When producing corrugated cardboard of different widths, the piston 74 can be moved to a suitable position so that only the steam injection holes 111 corresponding to the width area of ​​the corrugated cardboard inject steam, preventing steam from being injected outside the corrugated cardboard, reducing steam waste, and improving energy efficiency.

[0041] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steam jet device for a corrugator of corrugated board, characterized in that: The heating assembly is arranged between the upper preheating roller (3) and the upper compression roller system (4) and between the lower preheating roller (6) and the lower compression roller system (5), and the heating assembly comprises an arc-shaped heating plate (2) or a steam spraying component (1), the steam spraying component (1) comprises a heating box (11) and a steam inlet pipe (12) for supplying low-pressure steam to the inside of the heating box (11), one end of the steam inlet pipe (12) is in communication with the inside of the heating box (11) and the communication position is located at the lower plane of the heating box (11), the lower plane of the heating box (11) is communicated with a condensate water drainage pipe (13), the condensate water drainage pipe (13) and the steam inlet pipe (12) are arranged along the diagonal direction of the heating box (11) and are spaced apart, the upper plane of the heating box (11) is provided with steam spraying holes (111), the steam spraying holes (111) are arranged in multiple and are distributed on the upper plane of the heating box (11), and the upper plane of the heating box (11) is in sliding abutment with the corrugated base paper.

2. A steam jet device for a corrugator as claimed in claim 1, characterized in that: The heating box (11) is rectangular, and square steel bars (75) are arranged on the left and right outer sides of the heating box (11); adjustment assemblies (7) are arranged on the left and right sides of the heating box (11) and are inserted into and slidably connected with the heating box (11), the adjustment assembly (7) comprises a motor (71), a gear (72), a rack (73) and a piston (74), the output end of the motor (71) is fixedly connected with the center of the gear (72), the gear (72) is engaged with the rack (73), the rack (73) is arranged along the width direction of the heating box (11) and penetrates into the inside of the heating box (11) at one end, the middle part of the rack (73) is fixedly connected with the square steel bar (75), the square steel bar (75) is perpendicular to the rack (73) and is arranged along the horizontal direction, the piston (74) is arranged in multiple, the pistons (74) are arranged along the length direction of the square steel bar (75) and are fixedly connected with the square steel bar (75), the rack (73) and the piston (74) are both slidably arranged relative to the heating box (11) and reciprocally slide along the width direction of the heating box (11), and the circumferential side wall of the piston (74) is in sliding abutment with the inner wall of the heating box (11); all the steam spraying holes (111) are arranged in multiple rows on the top of the heating box (11) and correspond to the number of pistons (74), and adjacent steam spraying holes (111) in a single row are spaced apart along the sliding direction of the corresponding piston (74).

3. A steam jet device for a corrugator as defined in claim 2, characterized in that: The adjustment assembly (7) is arranged in two groups, the two groups of adjustment assemblies (7) are symmetrically distributed on both ends of the heating box (11) along the width direction of the heating box (11); the steam inlet pipe (12) and the condensate water drainage pipe (13) are respectively communicated with the heating box (11) and are located between the two groups of adjustment assemblies (7).

4. A steam jet device for a corrugator as defined in claim 2, characterized in that: The piston (74) is a graphite piston (74).

5. A steam jet device for a corrugator as defined in claim 1, wherein: The arc-shaped heating plate (2) is hollow and filled with high-pressure saturated steam, the arc-shaped convex surface of the arc-shaped heating plate (2) faces upward and is used for tensioning the corrugated base paper and being in sliding abutment with the corrugated base paper.

6. A steam jet device for a corrugator as defined in claim 5, characterized in that: The arc-shaped heating plate (2) is a chrome-plated arc-shaped heating plate (2).

7. A steam jet device for a corrugator according to claim 6, characterized in that: The arc-shaped heating plate (2) is an arc-shaped heating plate (2) with an upper arc surface that is finely ground.

8. A steam jet device for a corrugator as defined in claim 3, characterized in that: The steam spraying parts (1) are also distributed in the middle of the machine for heating the double corrugated paper board rolled by the upper and lower roller systems (4, 5) and increasing the adhesion strength.

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