Slitting method for double-zero aluminum foil with single width of 1.9 m or above

Abstract

The invention discloses a slitting method for double-zero aluminum foil with the single width larger than 1.9 m. The slitting method comprises the steps of charging, splitting machine parameter setting, bottoming, slitting, packaging and the like, and a separating roller of a splitting machine is formed by hanging glue on a separating roller with the length of 1900 mm in an extending mode. According to the method, existing equipment is modified, a separating roller is lengthened, and parameters of a splitting machine and parameters of a welding machine are adjusted at the same time, so that the splitting requirement of the double-zero aluminum foil with the single width larger than 1.9 m is met, the technical barrier of cutting of the double-zero aluminum foil with the single width larger than 1.9 m is overcome, the equipment purchase cost is saved, and the obtained double-zero aluminum foil is uniform in width and high in yield. The problems of uneven end faces, layer stringing, edge warping and tower-shaped unrolling are solved, the percent of pass is high, and the use requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of aluminum foil production, and in particular to a slitting method for double-zero aluminum foil with a single width of more than 1.9 m. Background Art

[0002] Aluminum foil is a hot stamping material that is directly rolled into thin sheets of metal aluminum. It is soft and ductile. It is not only moisture-proof, airtight, light-shielding, abrasion-resistant, non-toxic and tasteless, but also has an elegant silver-white luster and is easy to process into beautiful patterns and patterns of various colors, so it is more popular with people. Double-zero aluminum foil is usually aluminum foil with a thickness of less than 0.0075mm. Due to its excellent isolation, preservation and processing properties, it is widely used in food, medicine, electronic product packaging and other fields.

[0003] With the improvement of people's living standards and the development of economy and technology, various industries have increasingly higher requirements for the quality of aluminum foil. They hope that the thickness of aluminum foil will be thinner, with fewer pinholes, and higher mechanical properties and surface quality. Therefore, in order to improve the rolling efficiency and the quality of aluminum foil products, aluminum foil production equipment has gradually developed in the direction of large rolls, wide widths, high speeds, and automation. The ACHENBCHSH slitting machine designed and manufactured in Germany is a mechanical equipment specially used to cut aluminum foil coils into the required width and length. It has the advantages of high efficiency, precision, and high degree of automation. However, due to its short separation roller, problems such as warping, powder loss, stringing, and tower-shaped loose rolls often occur when slitting double-zero aluminum foil. Moreover, under the premise that the demand for double-zero aluminum foil with a single width of more than 1.9m is gradually increasing, the original ACHENBCHSH slitting machine cannot cut double-zero aluminum foil with a single width of more than 1.9m due to the limited length of the equipment separation roller. Therefore, it is urgent to improve the existing equipment and slitting methods to meet the slitting needs of double-zero aluminum foil with a single width of more than 1.9m. Summary of the invention

[0004] The invention provides a slitting method for double-zero aluminum foil with a single width of more than 1.9m, aiming to improve the existing double-zero aluminum foil slitting machine and adjust the slitting method to meet the slitting demand for double-zero aluminum foil with a single width of more than 1.9m.

[0005] To achieve its purpose, the present invention adopts the following technical solution: A method for slitting double-zero aluminum foil with a single width of more than 1.9 m, comprising the following steps: Step 1: Loading; Place the aluminum foil roll on the slitting machine with a separation roller length of 1.9m<L≤1.93m, and adjust the aluminum foil roll to make it flat and wrinkle-free; Step 2: Set parameters; set the slitting machine parameters and adjust the welding length of the welder to be equal to the length of the separation roller in step 1; wherein the slitting machine parameters include a flattening roller pressure of 0.2-0.4N, a support roller pressure of 1.2-2.4N, a tension of 33-38N, and a cutting speed of 400-580m / min; Step 3: Base coating of the tube core; Wrap aluminum foil around the tube core for base coating. When base coating, adjust the pressure of the flattening roller and the support roller of the slitting machine set in step 2 to the set lower limit value, and the base coating speed is ≤200m / min; when the base coating length of the tube core is ≥1000m, adjust the cutting speed of the slitting machine to the set value in step 2, and adjust the pressure of the flattening roller and the support roller to the set upper limit value; Step 4: Start slitting; start the slitting machine and cut the aluminum foil roll in step 1 according to the parameters set in step 2; Step 5: Complete slitting; turn off the slitting machine, clean the residue on the slitting machine, and take out the cut double zero aluminum foil; Step 6: Packaging: Pack the double zero aluminum foil cut in step 5. Furthermore, in step one, the slitting machine is an ACHENBCHSH type slitting machine, and the separation roller is formed by extending a separation roller with a length of 1900 mm by coating with glue.

[0006] Furthermore, in step 1, the length of the separation roller is L=1.93 m.

[0007] Furthermore, the separation roller is set to 20mm / m according to the roller body length, the convexities of the flattening roller and the supporting roller are 8mm / m, 12mm / m, 8mm / m, and 12mm / m respectively, and the separation roller pressure is 20-22N.

[0008] Furthermore, in step one, the slitting machine uses a LUTZ three-hole blade for cutting operation.

[0009] Furthermore, in step three, the length of the tube core is 24-25 mm.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The double-zero aluminum foil slitting method provided by the present invention performs modification on the existing equipment, extends the original separation roller by coating glue to obtain a separation roller with a length of 1930 mm, and adjusts the parameters of the slitting machine and the welding machine to meet the slitting requirements of double-zero aluminum foil with a single width of more than 1.9 m, overcomes the technical barriers of cutting double-zero aluminum foil with a width of more than 1.9 m, saves equipment procurement costs, and obtains double-zero aluminum foil with uniform width, without problems such as uneven end faces, stringing layers, warping edges, and tower-shaped loose coils, with a high pass rate, meeting the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1This is a picture of a double-zero aluminum foil product having a single width of 1.91 m obtained by slitting in Example 1 of the present invention; Figure 2 This is a picture of a double-zero aluminum foil product having a single width of 1.92 m obtained by slitting in Example 2 of the present invention. DETAILED DESCRIPTION

[0012] The present invention will be further described below in conjunction with embodiments: In the following embodiments of the present invention, the slitting machine used is modified from the ACHENBCHSH slitting machine, and the slitting machine uses a LUTZ three-hole blade for cutting operation. The separation roller of the slitting machine is formed by extending the original separation roller with a length of 1900mm by coating with glue, so as to obtain a separation roller with a length of 1930mm, which is used to slit a single double-zero aluminum foil with a width of more than 1.9m. Due to the uneven temperature distribution in the middle and edge of the separation roller during slitting, the large temperature difference will affect the flatness of the double-zero aluminum foil product, and in order to facilitate the subsequent efficient production of multiple products or multiple slit aluminum foil rolls, the separation roller does not need to be replaced at any time according to the material roll. The separation roller is set to 20mm / m according to the roller body length, and the convexity of the flattening roller and the support roller are 8mm / m, 12mm / m, 8mm / m, and 12mm / m respectively. The pressure of the separation roller is 20N, so that it is suitable for slitting different types of material rolls.

[0013] Example 1 A method for slitting a single-width 1.91m double-zero aluminum foil comprises the following steps: Step 1: Loading; Place the aluminum foil roll with no obvious defects on the slitting machine, and adjust the aluminum foil roll to make it flat and wrinkle-free; Step 2: Set parameters; set the parameters of the slitting machine, where the pressure of the flattening roller is 0.3N, the pressure of the supporting roller is 1.5N, the tension is 35N, and the cutting speed is 500m / min; and adjust the welding length of the welding machine to 1930mm; Step 3: Prime the tube core; Wrap the aluminum foil around a tube core with a length of 24 mm and chamfered without burrs for primer, and the tube core plays a supporting and fixing role; When primer is applied, adjust the pressure of the flattening roller of the slitting machine to 0.2N, the pressure of the support roller to 1.2N, and the primer speed to 200m / min; when the tube core primer length is 1000m, start to accelerate to 500m / min, and adjust the pressure of the flattening roller to 0.4N, and the pressure of the support roller to 2.4N; Step 4: Start slitting; start the slitting machine and cut the aluminum foil roll in step 1 according to the parameters set in step 2; Step 5: Complete slitting; turn off the slitting machine, clean the residue on the slitting machine, and take out the cut double zero aluminum foil with a width of 1.91m. Figure 1 As shown in the figure, the width of the double-zero aluminum foil is uniform, and there is no problem of uneven end surface, which meets the product use requirements; Step 6: Packaging: Pack the single width 1.91m double zero aluminum foil cut in step 5. Example 2 A method for slitting a single-width 1.92m double-zero aluminum foil comprises the following steps: Step 1: Loading; Place the aluminum foil roll with no obvious defects on the slitting machine, and adjust the aluminum foil roll to make it flat and wrinkle-free; Step 2: Set parameters; Set the parameters of the slitting machine, where the pressure of the flattening roller is 0.25N, the pressure of the supporting roller is 1.8N, the tension is 36N, and the cutting speed is 520m / min; and adjust the welding length of the welding machine to 1930mm; Step 3: Prime the tube core; Wrap the aluminum foil around a tube core with a length of 25 mm and chamfered without burrs for primer, and the tube core plays a supporting and fixing role; When primer is applied, adjust the pressure of the flattening roller of the slitting machine to 0.2N, the pressure of the support roller to 1.2N, and the primer speed to 180m / min; when the tube core primer length is 1500m, start to accelerate to 520m / min, and adjust the pressure of the flattening roller to 0.4N, and the pressure of the support roller to 2.4N; Step 4: Start slitting; start the slitting machine and cut the aluminum foil roll in step 1 according to the parameters set in step 2; Step 5: Complete slitting; turn off the slitting machine, clean up the residue on the slitting machine, and take out the cut double zero aluminum foil with a width of 1.92m. Figure 2 As shown in the figure, the width of the double zero aluminum foil is uniform, without uneven end faces, layer stringing and edge warping problems, which meets the product use requirements; Step 6: Packaging: Pack the single width 1.92m double zero aluminum foil cut in step 5. Example 3 A method for slitting a single-width 1.92m double-zero aluminum foil comprises the following steps: Step 1: Loading; Place the aluminum foil roll with no obvious defects on the slitting machine, and adjust the aluminum foil roll to make it flat and wrinkle-free; Step 2: Set parameters; Set the parameters of the slitting machine, where the flattening roller pressure is 0.35N, the support roller pressure is 1.7N, the tension is 34N, and the cutting speed is 480m / min; and adjust the welding length of the welding machine to 1930mm; Step 3: Prime the tube core; Wrap the aluminum foil around a tube core with a length of 25 mm and chamfered without burrs for primer, and the tube core plays a supporting and fixing role; When primer is applied, adjust the pressure of the flattening roller of the slitting machine to 0.2N, the pressure of the support roller to 1.2N, and the primer speed to 200m / min; when the tube core primer length is 2000m, start to accelerate to 480m / min, and adjust the pressure of the flattening roller to 0.4N, and the pressure of the support roller to 2.4N; Step 4: Start slitting; start the slitting machine and cut the aluminum foil roll in step 1 according to the parameters set in step 2; Step 5: Complete slitting; turn off the slitting machine, clean the residue on the slitting machine, and take out the cut double zero aluminum foil with a width of 1.92m. Check whether the width of the double zero aluminum foil is uniform, without uneven end faces, layer stringing, warping edges and tower-shaped loose rolls, and meet the product use requirements; Step 6: Packaging: Pack the single-piece 1.92m wide double-zero aluminum foil cut in step 5.

Claims

1. A method for slitting double zero aluminum foil with a single width of more than 1.9 m, characterized in that: The following steps are involved: Step 1: Loading; Place the aluminum foil roll on the slitting machine with a separation roller length of 1.9m<L≤1.93m, and adjust the aluminum foil roll to make it flat and wrinkle-free; Step 2: Setting parameters; setting the parameters of the slitting machine and adjusting the welding length of the welding machine to be equal to the length of the separation roller in step 1; wherein the parameters of the slitting machine include a flattening roller pressure of 0.2-0.4N, a support roller pressure of 1.2-2.4N, a tension of 33-38N, and a cutting speed of 400-580m / min; Step 3: Base coating of the tube core; Wrap aluminum foil around the tube core for base coating. When base coating, adjust the pressure of the flattening roller and the support roller of the slitting machine set in step 2 to the set lower limit value, and the base coating speed is ≤200m / min; when the base coating length of the tube core is ≥1000m, adjust the cutting speed of the slitting machine to the set value in step 2, and adjust the pressure of the flattening roller and the support roller to the set upper limit value; Step 4: Start slitting; start the slitting machine and cut the aluminum foil roll in step 1 according to the parameters set in step 2; Step 5: Complete slitting; turn off the slitting machine, clean the residue on the slitting machine, and take out the cut double zero aluminum foil; Step six: Packaging: Pack the double zero aluminum foil cut in step five.

2. A method for slitting double zero aluminum foil with a single width of more than 1.9 m as claimed in claim 1, characterized in that: In step 1, the slitting machine is an ACHENBCHSH type slitting machine, and the separation roller is formed by extending a separation roller with a length of 1900 mm by coating with glue.

3. A method for slitting double zero aluminum foil with a single width of more than 1.9 m as claimed in claim 2, characterized in that: In step 1, the length of the separation roller is L=1.93m.

4. A method for slitting double zero aluminum foil with a single width of more than 1.9 m as claimed in claim 3, characterized in that: The separation roller is set to 20mm / m according to the roller body length, the convexity of the flattening roller and the supporting roller are 8mm / m, 12mm / m, 8mm / m, and 12mm / m respectively, and the pressure of the separation roller is 20-22N.

5. A method for slitting double zero aluminum foil with a single width of more than 1.9 m as claimed in any one of claims 1 to 4, characterized in that: In step 1, the slitting machine uses a LUTZ three-hole blade for cutting.

6. A method for slitting double zero aluminum foil with a single width of more than 1.9 m as claimed in any one of claims 1 to 4, characterized in that: In step three, the length of the tube core is 24-25 mm.

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