Dotter glue roller for making full-heat corrugated core body

Abstract

The utility model discloses a kind of dot matrix gluing roller for making full-heat corrugated core's single facer, including roller body, continuous gluing part and dot matrix gluing part are equipped on roller body, dot matrix gluing part includes the slotting part of several sections distributed along the circumference of roller body and the edge sealing part between each slotting part, continuous gluing part extends along the circumference of roller body.The utility model reduces the gluing area of full-heat corrugated core exchange material to improve effective exchange area, improve the enthalpy efficiency and sensible heat efficiency of full-heat corrugated core.

Description

Technical Field

[0001] This utility model relates to a corrugated core production equipment, and more specifically, it relates to a dot matrix gluing roller for a single-sided machine used to produce fully heated corrugated cores. Background Technology

[0002] Currently, commercially available total heat exchanger corrugated cores are typically manufactured using a single-sided machine by bonding corrugated material and total heat exchange material together with adhesive to create a double-layer corrugated configuration. This involves bonding one layer of corrugated material and one layer of planar heat exchange material together with adhesive, followed by roller coating of adhesive, lamination, cutting, and assembly of the outer frame to support the total heat exchanger corrugated core. During this double-layer corrugated process, adhesive is present at each contact point between the corrugated crest and the planar heat exchange material. The presence of adhesive on the total heat exchange material affects its heat transfer capacity. More importantly, the adhesive blocks the transport path of water molecules within the heat exchange material, thus reducing the enthalpy and sensible heat efficiency of the total heat exchanger corrugated core. Since the enthalpy and sensible heat efficiency of the total heat exchanger corrugated core are positively correlated with the effective exchange area of ​​the total heat exchange material, reducing the adhesive application area of ​​the heat exchange material to increase the effective exchange area becomes a viable option for improving the enthalpy and sensible heat efficiency of the total heat exchanger corrugated core. Patent CN117532962A discloses a single-facer, which uses an upper corrugated roller to fully heat the corrugated paper, accelerating the drying time of the adhesive and making the bond between the face paper and the core paper stronger. However, this invention cannot solve the problem of reducing the adhesive application area of ​​the heat exchange material in the fully heated corrugated core to ultimately improve the enthalpy efficiency and sensible heat efficiency of the fully heated corrugated core. Utility Model Content

[0003] In existing technologies for preparing double-layer corrugated cores, the excessively large adhesive application area reduces the enthalpy and sensible heat efficiency of the fully heated corrugated core. To overcome this defect, this invention provides a dot matrix adhesive roller for single-sided machines used in the production of fully heated corrugated cores. This roller can reduce the adhesive application area of ​​the exchange material in the fully heated corrugated core, increase the effective exchange area, and thus improve the enthalpy and sensible heat efficiency of the fully heated corrugated core.

[0004] The technical solution of this utility model is: a dot-matrix gluing roller for a single-sided machine used in manufacturing fully heat-exchange corrugated cores, comprising a roller body, a continuous gluing section and a dot-matrix gluing section on the roller body, the dot-matrix gluing section including several slotted sections distributed along the circumference of the roller body and edge sealing sections located between the slotted sections, the continuous gluing section extending along the circumference of the roller body. By simultaneously setting the continuous gluing section and the dot-matrix gluing section on the roller body, the gluing method of the adhesive can be precisely controlled for different positions of the corrugated material and the full heat exchange material. The continuous gluing section ensures a continuous supply of adhesive to areas requiring continuous and firm bonding, such as the edges of the corrugated material, ensuring stable edge bonding; the dot-matrix gluing section applies adhesive in a dot-matrix pattern at the contact points between the corrugated crests and the full heat exchange material, effectively reducing the gluing area of ​​the full heat exchange material, thereby increasing its effective exchange area, and ultimately improving the enthalpy efficiency and sensible heat efficiency of the fully heat-exchange corrugated core.

[0005] Preferably, the continuous adhesive application section is located on both sides of the dot matrix adhesive application section, and the dot matrix adhesive application section and the continuous adhesive application sections on both sides constitute a set of adhesive application sections. The continuous adhesive application section, located on both sides of the dot matrix adhesive application section, provides stable and continuous adhesive to the edges of the corrugated material and the total heat exchange material, ensuring strong adhesion at the edges and preventing edge delamination during subsequent processing or use. The dot matrix adhesive application section is responsible for applying adhesive to the critical contact area in the middle, reducing the adhesive area while ensuring adhesive strength. The combination of these two sections ensures that the adhesion of the entire corrugated structure is both stable and maximizes the preservation of the performance of the total heat exchange material, comprehensively improving product quality.

[0006] Preferably, the slotted sections are evenly distributed circumferentially around the roller. This uniform distribution ensures that the adhesive application points at the contact points between the corrugated crests and the heat exchange material are evenly distributed throughout the roller's rotation. This helps guarantee consistent bonding strength across all parts of the heat-exchange corrugated core, preventing uneven adhesive application that could lead to weak bonding in some areas or excessive adhesive that could negatively impact heat exchange performance, thereby improving product quality stability and consistency.

[0007] Preferably, the continuous adhesive application section is connected to the edge sealing section. This connection ensures a smoother transition from the continuous adhesive application area to the dot-matrix adhesive application area, resulting in a continuous and rational adhesive distribution. This helps enhance the overall structural stability at the junction of the corrugated material and the total heat exchange material, avoiding stress concentration or adhesive buildup / deficiency at the connection point, further improving the product's durability and reliability.

[0008] Preferably, each slotted section includes multiple grooves arranged circumferentially along the roller body, with the grooves in each section evenly spaced. The multiple grooves in each slotted section, with their even spacing, allow for precise control of the position and amount of adhesive applied to each gluing point. By adjusting parameters such as the number, spacing, and depth of the grooves, the amount and density of adhesive application can be flexibly controlled to adapt to the gluing requirements of different types of corrugated materials, total heat exchange materials, and products with varying performance requirements, thus improving the equipment's versatility and adaptability.

[0009] Preferably, the plane containing the groove is perpendicular to the axis of the roller. This perpendicularity ensures that the adhesive dots have a regular and consistent shape and position when the corrugated material comes into contact with the total heat exchange material. This helps improve the accuracy and stability of the adhesive application, ensuring that each adhesive dot accurately acts at the contact point between the corrugated crest and the total heat exchange material, and preventing the adhesive dot from shifting or becoming irregular in shape, thus affecting the bonding effect and the performance of the total heat exchange material.

[0010] Preferably, roller shafts are provided at both ends of the roller body. The roller shafts are rotatably engaged with the support components of the roller body to ensure the rotation of the roller body.

[0011] Preferably, the roller body is made of rust-resistant alloy. Using a rust-resistant alloy to manufacture the roller body effectively resists the erosion of moisture and corrosive substances that may be present in the production environment, extending the service life of the equipment. During long-term production, the roller body is less prone to rust and damage, reducing production downtime and maintenance costs caused by equipment failure, and ensuring the continuity and stability of production.

[0012] The beneficial effects of this utility model are: This invention optimizes the performance of a fully heated corrugated core. Breaking away from traditional full-area adhesive application, it avoids the negative impact of applying adhesive over a large area of ​​the heat exchange material on its heat transfer capacity and water molecule transport path. This fundamentally optimizes the performance of the fully heated corrugated core, meeting the high requirements for product heat exchange performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of one structure of the present utility model.

[0014] Figure 2 This is the front view of the present invention.

[0015] Figure 3 This is a cross-sectional view of the present invention.

[0016] Figure 4 This is a cross-sectional view of the present invention.

[0017] In the diagram, 1-roller shaft, 2-continuous gluing section, 3-dot matrix gluing section, 4-sealing section, 5-grooving section, 6-roller body, 7-groove, 8-core boundary area, 9-sub-area, 10-core main area. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] Example 1: like Figures 1 to 4 As shown, a dot-matrix gluing roller for a single-sided machine used to produce fully heated corrugated cores includes a roller body 6, which is made of rust-resistant alloy; in this embodiment, it is stainless steel. Roller shafts 1 are provided at both ends of the roller body 6, and the roller shafts 1 are coaxial with and integrally formed with the roller body 6. The roller body 6 has a continuous gluing section 2 and a dot-matrix gluing section 3. The dot-matrix gluing section 3 includes three slotted sections 5 distributed circumferentially along the roller body 6 and sealing sections 4 located between each slotted section 5. The slotted sections 5 and the sealing sections 4 are in a one-to-one correspondence. The three slotted sections 5 are evenly distributed circumferentially around the roller body 6, meaning that the central angles of adjacent slotted sections 5 relative to the axis of the roller body 6 are equal. The continuous gluing section 2 extends circumferentially along the roller body 6, forming a closed circumference. Along the axial direction of the roller body 6, the continuous adhesive application section 2 is located on both sides of the dot matrix adhesive application section 3. The roller surfaces of the roller body 6 on both sides of the dot matrix adhesive application section 3 constitute the continuous adhesive application section 2. The dot matrix adhesive application section 3 and the continuous adhesive application sections 2 on both sides constitute a set of adhesive application sections. In this embodiment, there are two sets of adhesive application sections on the roller body 6, so that the axial structural arrangement of the roller body 6 is as follows: continuous adhesive application section 2, dot matrix adhesive application section 3, continuous adhesive application section 2, continuous adhesive application section 2, dot matrix adhesive application section 3, continuous adhesive application section 2. Similar to the continuous adhesive application section 2, the sealing section 4 is directly formed by the roller surface between the grooved sections 5 on the circumference of the roller body 6. The continuous adhesive application section 2 and the sealing section 4 are connected to form a single piece, and the sealing section 4 extends along the axial direction of the roller body 6. Each slotted section 5 includes eighteen grooves 7 excavated along the circumference of the roller body 6. The grooves 7 in each slotted section 5 are evenly distributed along the axial direction of the roller body 6. The grooves 7 are recessed below the roller surface of the roller body 6, and the plane containing the grooves 7 is perpendicular to the axis of the roller body 6. In other words, the grooves 7 are located in a plane perpendicular to the axis of the roller body 6. The grooves 7 are fan-shaped, and the three slotted sections 5 and the three sealing sections 4 are connected at intervals along the circumference of the roller body 6 to form a complete circumference.

[0020] The structure and dimensions of the roller body 6 are designed according to the following method: If the required dimensions of the corrugated fully heated core are a*b, to ensure the airtightness of the corrugated core, all corrugations in the core boundary region 8 need to have adhesive present. The width of the secondary region 9, i.e., the transition region between the core boundary region 8 and the main core region 10, is set as the sealing width c. According to process requirements, the core boundary region 8 needs to be treated as a rough edge with a width of d. The corrugations in the secondary region 9 also need adhesive. m is the number of slotted sections 5 or sealing sections 4, and n is the number of adhesive application sections on the roller 6. Therefore, the dimensions of the continuous adhesive application section 2 and the dot matrix adhesive application section 3 of this invention are: The circumference of the continuous adhesive application part 2 and the dot matrix adhesive application part 3 is m(b+2d); The continuous gluing section 2 and the dot matrix gluing section 3 have the same diameter, and the diameter of the roller body 6 is m(b+2d) / π; The width of the continuously applied adhesive section 2 is d+c; The width of the adhesive part 3 in the dot matrix is ​​a-2c; The central angle of sector 7 of groove 5 is (b-2c) / (b+2d)*360° / m; The central angle of the edge banding 4 is (2c+2d) / (b+2d)*360° / m; The width of the glue roller is n*(a+2d).

[0021] The single-facer has a maximum production width M; therefore, the width of the gluing roller n*(a+2d) should be less than M. The single-facer also has a maximum gluing roller diameter φmax and a minimum diameter φmin, where φmin ≤ φ = m(b+2d) / 2π ≤ φmax. The groove width and rib dimensions are designed according to the core strength requirements; the preferred rib width is between 2-5mm, and the rib spacing is between 5-20mm. a, b, and c are the core dimensions, determined by the product; d is a burr size, an inevitable loss during processing. n and m are determined by the maximum gluing roller size that can be installed on the single-facer. For example, if the maximum width of the single-facer is 800mm, then the gluing roller width n*(a+2d) should be less than 800mm, but should be as large as possible to fully utilize production capacity. When the core dimensions a and b are small, multiple sets can be set; when the core dimensions a and b are large, fewer sets are needed. Similarly, the gluing roller of a single-facer also has a suitable diameter range, for example, the suitable diameter range is 150 to 280 mm. When producing cores of smaller or larger sizes, it is necessary to set an appropriate m value so that the diameter of the gluing roller is within the range that the single-facer can adapt to.

[0022] In this embodiment, the single-sided machine width is 500mm, and the diameter range of the suitable gluing roller is 150-250mm. The required dimensions of the corrugated fully heated core are a=200mm and b=200mm. To ensure the airtightness of the fully heated corrugated core, the corrugations in the boundary area of ​​the core need to be glued. The width of this area is set as the sealing width c=10mm. According to process requirements, a rough edge d=15mm needs to be added. The corrugations in this area also need to be glued. n is 2, m is 3, where n is the number of groups of continuous gluing section-dot matrix gluing section-continuous gluing section in the direction of the gluing roller axis, and m is the number of groups of sealing section-grooving section-sealing section on the circumference of the gluing roller. Therefore, the dimensions of the continuous gluing section and the dot matrix gluing section of the gluing roller described in Embodiment 1 are: The circumference of the continuous gluing section and the dot matrix gluing section of the gluing roller is 3*(15*2+200)=690mm; The continuous gluing section and the intermittent gluing section have the same diameter, which is 3(15*2+200) / π=219.634mm; The width of the continuously applied adhesive section is 15 + 10 = 25 mm; The width of the adhesive layer on the dot matrix is ​​200 - 2 * 10 = 180 mm; The included angle of the slotted sector on the dot matrix adhesive part is (200-2*10) / (200+2*15)*360° / 3=93.91°; The included angle of the sector area of ​​the upper sealing part of the dot matrix adhesive part is (2*15+2*10) / (200+2*15)*360° / 3=26.09°; The width of the glue roller is 2*(200+2*15)=460mm; The groove width is 8mm and the rib width is 2mm.

[0023] During production, corrugated material and total heat exchange material are fed into the dot matrix gluing roller via a single-facer. When fed in, the direction of the corrugated material's ribs is perpendicular to the groove opening of the groove 7, meaning the ribs are perpendicular to the ribs or parallel to the axis of the roller body 6. The continuous gluing section 2 provides a continuous supply of glue to the edges of the corrugated material, ensuring a strong bond between the edges of the corrugated material and the total heat exchange material. The dot matrix gluing section 3 only contacts the corrugated crests of the ribs in the grooved section 5, leaving only dot matrix glue dots on the corrugated material. The corrugated material and the total heat exchange material are bonded through these dot matrix bonding points, rather than through traditional continuous gluing, ultimately forming a corrugated total heat exchange core. This dot matrix gluing method effectively reduces the glue coverage area on the total heat exchange material.

[0024] Example 2: A dot-matrix gluing roller for producing fully heated corrugated cores on a single-sided machine includes a roller body 6 made of a rust-resistant alloy, specifically aluminum alloy in this embodiment. Roller shafts 1 are located at both ends of the roller body 6, coaxial and integrally formed with the roller body 6. The roller body 6 has a continuous gluing section 2 and a dot-matrix gluing section 3. The dot-matrix gluing section 3 includes three slotted sections 5 distributed circumferentially along the roller body 6 and sealing sections 4 located between each slotted section 5, with a one-to-one correspondence between the slotted sections 5 and the sealing sections 4. The three slotted sections 5 are evenly distributed circumferentially around the roller body 6, meaning that the central angles of adjacent slotted sections 5 relative to the axis of the roller body 6 are equal. The continuous gluing section 2 extends circumferentially along the roller body 6, forming a closed circumference. Along the axial direction of the roller body 6, the continuous adhesive application section 2 is located on both sides of the dot matrix adhesive application section 3. The roller surfaces of the roller body 6 on both sides of the dot matrix adhesive application section 3 constitute the continuous adhesive application section 2. The dot matrix adhesive application section 3 and the continuous adhesive application sections 2 on both sides constitute a set of adhesive application sections. In this embodiment, there are three sets of adhesive application sections on the roller body 6, so that the axial structural arrangement of the roller body 6 presents the following sequence: continuous adhesive application section 2, dot matrix adhesive application section 3, continuous adhesive application section 2, continuous adhesive application section 2, dot matrix adhesive application section 3, continuous adhesive application section 2, continuous adhesive application section 2, dot matrix adhesive application section 3, continuous adhesive application section 2, continuous adhesive application section 2, dot matrix adhesive application section 3, continuous adhesive application section 2. Similar to the continuous adhesive application section 2, the sealing section 4 is directly formed by the roller surface between the circumferentially grooved sections 5 of the roller body 6. The continuous adhesive application section 2 and the sealing section 4 are connected to form a single piece, and the sealing section 4 extends along the axial direction of the roller body 6. Each slotted section 5 includes seventeen grooves 7 excavated along the circumference of the roller body 6. The grooves 7 in each slotted section 5 are evenly spaced along the axial direction of the roller body 6. The grooves 7 are recessed below the roller surface of the roller body 6, and the plane containing the grooves 7 is perpendicular to the axis of the roller body 6. In other words, the grooves 7 are located in a plane perpendicular to the axis of the roller body 6. The grooves 7 are fan-shaped, and the three slotted sections 5 and the three sealing sections 4 are interlocked at intervals along the circumference of the roller body 6 to form a complete circumference. The rest is the same as in Embodiment 1.

[0025] The structure and dimensions of the roller body 6 are designed according to the following method: If the required dimensions of the corrugated fully heated core are a*b, to ensure the airtightness of the corrugated core, all corrugations in the core boundary region 8 need to have adhesive present. The width of the secondary region 9, i.e., the transition region between the core boundary region 8 and the main core region 10, is set as the sealing width c. According to process requirements, the core boundary region 8 needs to be treated as a rough edge with a width of d. The corrugations in the secondary region 9 also need adhesive. m is the number of slotted sections 5 or sealing sections 4, and n is the number of adhesive application sections on the roller 6. Therefore, the dimensions of the continuous adhesive application section 2 and the dot matrix adhesive application section 3 of this invention are: The circumference of the continuous adhesive application part 2 and the dot matrix adhesive application part 3 is m(b+2d); The continuous gluing section 2 and the dot matrix gluing section 3 have the same diameter, and the diameter of the roller body 6 is m(b+2d) / π; The width of the continuously applied adhesive section 2 is d+c; The width of the adhesive part 3 in the dot matrix is ​​a-2c; The central angle of sector 7 of groove 5 is (b-2c) / (b+2d)*360° / m; The central angle of the edge banding 4 is (2c+2d) / (b+2d)*360° / m; The width of the glue roller is n*(a+2d).

[0026] In this embodiment, the width of the single-sided machine is 300mm, and the diameter of the suitable gluing roller is in the range of 100-200mm.

[0027] The required dimensions of the corrugated fully heated core are a=200mm and b=200mm. To ensure the airtightness of the corrugated core, adhesive is required in the corrugations at the core boundary. The width of this area is set to the sealing width c=10mm. According to process requirements, a rough edge d=15mm needs to be added. Adhesive is also required in this area. n is set to 1, m is set to 2, where n is the number of sets of continuous adhesive application section - dot matrix adhesive application section - continuous adhesive application section along the roller axis, and m is the number of sets of sealing edge section - slotted section - sealing edge section on the circumference of the adhesive roller. Therefore, the dimensions of the continuous adhesive application section and the dot matrix adhesive application section of the adhesive roller described in Example 2 are: The circumference of the continuous gluing section and the dot matrix gluing section of the gluing roller is m(b+2d)=2(200+2*15)=460mm; The diameter of the continuous gluing section and the intermittent gluing section is the same, which is m(b+2d) / π=2(200+2*15) / π=146.42mm; The width of the continuously applied adhesive section is d+c=15+10=25mm; The width of the adhesive portion of the dot matrix is ​​a-2c=200-2*10=180mm; The included angle of the slotted sector on the dot matrix adhesive part is (b-2c) / (b+2d)*360° / m=(200-2*10) / (200+2*15)*360° / 2=140.87°; The included angle of the sector of the upper sealing part of the dot matrix adhesive part is (2c+2d) / (b+2d)*360° / m=(2*10+2*15) / (200+2*15) *360° / 2=39.13°; The width of the glue roller is n*(a+2d)=1*(200+2*15)=230mm; The groove width is 8mm and the rib width is 2mm.

[0028] During production, corrugated material and total heat exchange material are fed into the dot matrix gluing roller via a single-facer. When fed in, the direction of the corrugated material's ribs is perpendicular to the groove opening of the groove 7, meaning the ribs are perpendicular to the ribs or parallel to the axis of the roller body 6. The continuous gluing section 2 provides a continuous supply of glue to the edges of the corrugated material, ensuring a strong bond between the edges of the corrugated material and the total heat exchange material. The dot matrix gluing section 3 only contacts the corrugated crests of the ribs in the grooved section 5, leaving only dot matrix glue dots on the corrugated material. The corrugated material and the total heat exchange material are bonded through these dot matrix bonding points, rather than through traditional continuous gluing, ultimately forming a corrugated total heat exchange core. This dot matrix gluing method effectively reduces the glue coverage area on the total heat exchange material.

[0029] Example 3: A dot-matrix gluing roller for a single-sided machine used to produce fully heated corrugated cores includes a roller body 6, which is made of a rust-resistant alloy, specifically stainless steel in this embodiment. Roller shafts 1 are located at both ends of the roller body 6, and the roller shafts 1 are coaxial with and integrally formed with the roller body 6. The roller body 6 has a continuous gluing section 2 and a dot-matrix gluing section 3. The dot-matrix gluing section 3 includes three slotted sections 5 distributed circumferentially along the roller body 6 and sealing sections 4 located between each slotted section 5, with a one-to-one correspondence between the slotted sections 5 and the sealing sections 4. The three slotted sections 5 are evenly distributed circumferentially around the roller body 6, meaning that the central angles of adjacent slotted sections 5 relative to the axis of the roller body 6 are equal. The continuous gluing section 2 extends circumferentially along the roller body 6, forming a closed circumference. Along the axial direction of the roller body 6, the continuous adhesive application section 2 is located on both sides of the dot matrix adhesive application section 3. The roller surfaces of the roller body 6 on both sides of the dot matrix adhesive application section 3 constitute the continuous adhesive application section 2. The dot matrix adhesive application section 3 and the continuous adhesive application sections 2 on both sides constitute a set of adhesive application sections. In this embodiment, there are two sets of adhesive application sections on the roller body 6, so that the axial structural arrangement of the roller body 6 is as follows: continuous adhesive application section 2, dot matrix adhesive application section 3, continuous adhesive application section 2, continuous adhesive application section 2, dot matrix adhesive application section 3, continuous adhesive application section 2. Similar to the continuous adhesive application section 2, the sealing section 4 is directly formed by the roller surface between the grooved sections 5 on the circumference of the roller body 6. The continuous adhesive application section 2 and the sealing section 4 are connected to form a single piece, and the sealing section 4 extends along the axial direction of the roller body 6. Each slotted section 5 includes eighteen grooves 7 excavated along the circumference of the roller body 6. The grooves 7 in each slotted section 5 are evenly spaced along the axial direction of the roller body 6. The grooves 7 are recessed below the roller surface of the roller body 6, and the plane containing the grooves 7 is perpendicular to the axis of the roller body 6. In other words, the grooves 7 are located in a plane perpendicular to the axis of the roller body 6. The grooves 7 are fan-shaped, and the three slotted sections 5 and the three sealing sections 4 are interlocked at intervals along the circumference of the roller body 6 to form a complete circumference. The rest is the same as in Embodiment 1.

[0030] The structure and dimensions of the roller body 6 are designed according to the following method: If the required dimensions of the corrugated fully heated core are a*b, to ensure the airtightness of the corrugated core, all corrugations in the core boundary region 8 need to have adhesive present. The width of the secondary region 9, i.e., the transition region between the core boundary region 8 and the main core region 10, is set as the sealing width c. According to process requirements, the core boundary region 8 needs to be treated as a rough edge with a width of d. The corrugations in the secondary region 9 also need adhesive. m is the number of slotted sections 5 or sealing sections 4, and n is the number of adhesive application sections on the roller 6. Therefore, the dimensions of the continuous adhesive application section 2 and the dot matrix adhesive application section 3 of this invention are: The circumference of the continuous adhesive application part 2 and the dot matrix adhesive application part 3 is m(b+2d); The continuous gluing section 2 and the dot matrix gluing section 3 have the same diameter, and the diameter of the roller body 6 is m(b+2d) / π; The width of the continuously applied adhesive section 2 is d+c; The width of the adhesive part 3 in the dot matrix is ​​a-2c; The central angle of sector 7 of groove 5 is (b-2c) / (b+2d)*360° / m; The central angle of the edge banding 4 is (2c+2d) / (b+2d)*360° / m; The width of the glue roller is n*(a+2d).

[0031] In this embodiment, the width of the single-sided machine is 800mm, and the diameter of the suitable gluing roller is in the range of 150-300mm.

[0032] The required dimensions of the corrugated fully heated core are a=500mm and b=500mm. To ensure the airtightness of the corrugated core, adhesive is required in the corrugations at the core boundary. The width of this area is set to the sealing width c=15mm. According to process requirements, a rough edge d=20mm needs to be added. Adhesive is also required in this area. n and m are both set to 1. n represents the number of sets of continuous adhesive application section - dot matrix adhesive application section - continuous adhesive application section along the roller axis, and m represents the number of sets of sealing edge section - slotted section - sealing edge section on the circumference of the adhesive roller. Therefore, the dimensions of the continuous adhesive application section and the dot matrix adhesive application section of the adhesive roller described in Example 3 are: The circumference of the continuous gluing section and the dot matrix gluing section of the gluing roller is m(b+2d)=500+2*20=540mm; The diameter of the continuous gluing section and the intermittent gluing section is the same, which is m(b+2d) / π=(500+2*20) / π=171.89mm; The width of the continuously applied adhesive section is d+c=20+15=35mm; The width of the adhesive portion of the dot matrix is ​​a-2c=500-2*15=470mm; The included angle of the slotted sector on the dot matrix adhesive part is (b-2c) / (b+2d)*360° / m=(500-2*15) / (500+2*20)*360° / 1=313.33°; The included angle of the sector of the upper sealing part of the dot matrix adhesive part is (2c+2d) / (b+2d)*360° / m=(2*15+2*20) / (500+2*20) *360° / 1=46.67°; The width of the glue roller is n*(a+2d)=1*(500+2*20)=540mm; The groove width is 12mm and the rib width is 3mm.

[0033] During production, corrugated material and total heat exchange material are fed into the dot matrix gluing roller via a single-facer. When fed in, the direction of the corrugated material's ribs is perpendicular to the groove opening of the groove 7, meaning the ribs are perpendicular to the ribs or parallel to the axis of the roller body 6. The continuous gluing section 2 provides a continuous supply of glue to the edges of the corrugated material, ensuring a strong bond between the edges of the corrugated material and the total heat exchange material. The dot matrix gluing section 3 only contacts the corrugated crests of the ribs in the grooved section 5, leaving only dot matrix glue dots on the corrugated material. The corrugated material and the total heat exchange material are bonded through these dot matrix bonding points, rather than through traditional continuous gluing, ultimately forming a corrugated total heat exchange core. This dot matrix gluing method effectively reduces the glue coverage area on the total heat exchange material.

Claims

1. A dot-matrix gluing roller for a single-sided machine used in manufacturing fully heated corrugated cores, characterized in that, The roller body (6) is provided with a continuous gluing part (2) and a dot matrix gluing part (3). The dot matrix gluing part (3) includes a number of slotted parts (5) distributed along the circumference of the roller body (6) and a sealing part (4) located between each slotted part (5). The continuous gluing part (2) extends along the circumference of the roller body (6).

2. The dot matrix gluing roller for a single-sided machine used in manufacturing fully heated corrugated cores according to claim 1, characterized in that, The continuous adhesive application part (2) is located on both sides of the dot matrix adhesive application part (3), and the dot matrix adhesive application part (3) and the continuous adhesive application parts (2) on both sides constitute a set of adhesive application parts.

3. The dot matrix gluing roller for a single-sided machine used in manufacturing fully heated corrugated cores according to claim 1, characterized in that, The slotted sections (5) are evenly distributed around the roller body (6).

4. The dot matrix gluing roller for a single-sided machine used in manufacturing fully heated corrugated cores according to claim 1, characterized in that, The continuous adhesive part (2) is connected to the edge sealing part (4).

5. The dotter roller for single facer to make full-thermal corrugated core according to claim 1, characterized in that, Each slotted section (5) includes multiple grooves (7) arranged circumferentially along the roller body (6), and the grooves (7) in each slotted section (5) are evenly distributed.

6. The dot matrix gluing roller for a single-sided machine used in manufacturing fully heated corrugated cores according to claim 5, characterized in that, The plane containing the groove (7) is perpendicular to the axis of the roller (6).

7. The dot matrix gluing roller for a single-sided machine used in manufacturing fully heated corrugated cores according to claim 5, characterized in that, Roller shafts (1) are provided at both ends of the roller body (6).

8. The dot matrix gluing roller for a single-sided machine used for producing fully heated corrugated cores according to any one of claims 1 to 7, characterized in that, The roller body (6) is a rust-proof alloy part.

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