Aluminum foil processing device
By designing multiple hot air knives to align with the surface and bottom of the aluminum foil in the aluminum foil processing device, the problem of high oil content on the aluminum foil surface was solved, achieving stability of the aluminum foil dyne value and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU FIVE STAR ALUMINUM
- Filing Date
- 2025-05-19
- Publication Date
- 2026-06-05
Smart Images
Figure CN224324841U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aluminum foil production technology, and in particular to an aluminum foil processing device. Background Technology
[0002] In the aluminum foil production process, the dyne value of the aluminum foil surface is an important indicator for measuring its surface performance and has a crucial impact on subsequent processing steps such as printing and coating. If the dyne value is not appropriate, it will lead to quality problems such as poor adhesion of inks and coatings on the aluminum foil surface, missed coating, and coating shrinkage.
[0003] During the rolling process of aluminum foil, a large amount of rolling oil is used to reduce the friction between the rolls and the aluminum foil. However, this rolling oil will remain on the surface of the aluminum foil, resulting in a high oil content on the surface of the aluminum foil, which will affect its dyne value.
[0004] If the aluminum foil surface has a high oil content, it will cause poor adhesion when the coating paste is laminated with the aluminum foil, which will seriously affect the difficulty and cost of subsequent processing of the aluminum foil. For example, if the aluminum foil is used in the battery field, a high oil content on the aluminum foil surface will cause poor adhesion when the paste is laminated with the aluminum foil, which will seriously affect the electric cycle and energy density of the battery product. In order to compensate for the problem of insufficient dyne value, the amount of leveling agent and adhesive in the paste will be increased, or more expensive raw materials will be used, which undoubtedly increases the production cost.
[0005] To reduce rolling oil on the surface of aluminum foil, existing technologies rely on subsequent processes such as slitting to treat it to a certain extent, but the degreasing effect is limited or the cost is high. On the other hand, in the slitting process, corona treatment is used to address the dyne value problem caused by rolling oil residue on the aluminum foil surface, but there is a phenomenon of dyne decay, which cannot fundamentally improve the dyne value of the aluminum foil surface. Utility Model Content
[0006] To address the shortcomings of the existing technology, this utility model proposes an aluminum foil processing device to solve the problem that the aluminum foil has a high oil content on its surface during the production process, resulting in poor dyne values on the aluminum foil surface.
[0007] This utility model provides an aluminum foil processing device, which includes a rolling mill for rolling aluminum foil, a winding machine for winding the aluminum foil rolled by the rolling mill, a slitting machine for slitting the aluminum foil on the sleeve taken off by the winding machine, a first hot air knife and a second hot air knife fixed to the rolling mill, and a third hot air knife and a fourth hot air knife fixed to the slitting machine; the outlet lengths of the first hot air knife, the second hot air knife, the third hot air knife, and the fourth hot air knife are all greater than the width of the aluminum foil. The outlet of the first hot air knife is positioned aligned with the upper surface of the aluminum foil rolled by the rolling mill, the outlet of the second hot air knife is positioned aligned with the lower surface of the aluminum foil rolled by the rolling mill, the outlet of the third hot air knife is positioned aligned with the upper surface of the aluminum foil before slitting by the slitting machine, and the outlet of the fourth hot air knife is positioned aligned with the lower surface of the aluminum foil before slitting by the slitting machine.
[0008] Preferably, the first hot air knife comprises a plurality of knives that are fixed to the rolling mill at intervals and arranged along the rolling direction of the rolling mill; the second hot air knife comprises a plurality of knives that are fixed to the rolling mill in sequence and arranged along the rolling direction of the rolling mill.
[0009] Preferably, the third hot air knife includes multiple knives that are fixed to the slitting machine at intervals and arranged along the direction of the slitting machine from feeding to discharging; the fourth hot air knife includes multiple knives that are fixed to the slitting machine in sequence and arranged along the direction of the slitting machine from feeding to discharging.
[0010] Preferably, the air outlets of the first hot air knife, the second hot air knife, the third hot air knife, and the fourth hot air knife are all spaced 5-10 cm apart from the aluminum foil.
[0011] Preferably, the outlet air temperature range of the first hot air knife, the second hot air knife, the third hot air knife, and the fourth hot air knife is 100-300℃.
[0012] Preferably, the outlet air velocity of the first hot air knife, the second hot air knife, the third hot air knife, and the fourth hot air knife is 5-15 m / s.
[0013] Preferably, the rolling mill is provided with an oil-blocking cloth corresponding to the positions of the first hot air knife and the second hot air knife, and the oil-blocking cloth is located directly below the first hot air knife and the second hot air knife.
[0014] Compared with the prior art, the aluminum foil processing device of this utility model designs a first hot air knife and a second hot air knife on the rolling mill, and a third hot air knife and a fourth hot air knife on the slitting machine. The outlet lengths of the first, second, third, and fourth hot air knives are all defined to be greater than the width of the aluminum foil. The outlet of the first hot air knife is aligned with the upper surface of the aluminum foil rolled by the rolling mill, the outlet of the second hot air knife is aligned with the lower surface of the aluminum foil rolled by the rolling mill, and the outlet of the third hot air knife is aligned with the upper surface of the aluminum foil before slitting by the slitting machine. The outlet of the fourth hot air knife... The air vent is positioned to target the lower surface of the aluminum foil before slitting by the slitting machine. This allows the high-temperature hot air generated by the hot air knife on the rolling mill to blow on the surface of the rolled aluminum foil, quickly evaporating the rolling oil on the surface of the aluminum foil and causing the rolling oil to evaporate in the form of steam, thereby reducing the amount of oil on the surface of the aluminum foil. The hot air knife is designed on the slitting machine because a small amount of rolling oil will adhere to the rolled aluminum foil during subsequent transportation or waiting for slitting, or the rolling oil on the surface of the rolled aluminum foil may not be completely removed. In this case, the rolling oil can be removed again by the hot air knife, which can further reduce the amount of oil on the surface of the aluminum foil and thus better stabilize the dyne value of the aluminum foil surface. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:
[0016] Figure 1 A partial structural diagram of the aluminum foil processing device provided in an embodiment of the present utility model includes a rolling mill, a winding machine, a first hot air knife, and a second hot air knife;
[0017] Figure 2 Another structural schematic diagram of the aluminum foil processing device provided in this embodiment of the present invention includes a sleeve, a slitting machine, a third hot air knife, and a fourth hot air knife.
[0018] Among them, 1. Rolling mill; 11. Support roll; 12. Work roll; 13. Plate roll; 14. Wrapping roll; 2. Winding machine; 21. First flattening roll; 3. Slitting machine; 31. Guide roll; 32. Groove roll; 33. Cutting knife; 34. Tube core; 35. Second flattening roll; 36. Welding roll; 37. Clamping roll; 4. First hot air knife; 5. Second hot air knife; 6. Third hot air knife; 7. Fourth hot air knife; 8. Aluminum foil. Detailed Implementation
[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application, are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.
[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0021] It should be noted that the terms "above," "below," "left," and "right" mentioned in the embodiments of this utility model are used to describe the placement state in the accompanying drawings and should not be interpreted as limiting embodiments of this utility model. Furthermore, it should be understood that, in the text, when referring to an element that constitutes "above" or "below" another element, it is possible that the element directly constitutes "above" or "below" the other element, or it is possible that the element constitutes "above" or "below" the other element through an intermediate element.
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] This utility model embodiment provides an aluminum foil processing device, combined with Figures 1 to 2As shown, it includes a rolling mill 1 for rolling aluminum foil 8, a winding machine 2 for winding the aluminum foil 8 after rolling by the rolling mill 1, a slitting machine 3 for slitting the aluminum foil 8 on the sleeve taken off by the winding machine 2, a first hot air knife 4 and a second hot air knife 5 fixed to the rolling mill 1, and a third hot air knife 6 and a fourth hot air knife 7 fixed to the slitting machine 3; the air outlet length of the first hot air knife 4, the air outlet length of the second hot air knife 5, the air outlet length of the third hot air knife 6, and... The length of the air outlet of the fourth hot air knife 7 is greater than the width of the aluminum foil 8. The air outlet of the first hot air knife 4 is set to the position of the upper surface of the aluminum foil 8 rolled by the rolling mill 1. The air outlet of the second hot air knife 5 is set to the position of the lower surface of the aluminum foil 8 rolled by the rolling mill 1. The air outlet of the third hot air knife 6 is set to the position of the upper surface of the aluminum foil 8 before slitting by the slitting machine 3. The air outlet of the fourth hot air knife 7 is set to the position of the lower surface of the aluminum foil 8 before slitting by the slitting machine 3.
[0024] Among them, such as Figure 1 As shown, the interior of the rolling mill 1 mainly includes two sets of oppositely arranged rolls, a plate roll 13, and a corner roll 14. Each set of rolls includes a support roll 11 and a work roll 12. The corner roll 14 is designed at the exit position of the rolling mill 1. The first hot air knife 4 and the second hot air knife 5 are arranged near the corner roll 14. The coiler 2 mainly includes a sleeve and a first flattening roll 21.
[0025] like Figure 2 As shown, the rolling mill 1 and the coiler 2 can be designed as an integrated unit or as two separate units. The slitting machine 3 mainly includes multiple guide rollers 31, groove rollers 32, cutters 33, two sets of pressing rollers, welding rollers 36, clamping rollers 37, etc. Each set of pressing rollers includes a core tube 34 and second clamping rollers 35 located on opposite sides of the core tube 34; the third hot air knife 6 and the fourth hot air knife 7 are located at the entrance of the slitting machine 3.
[0026] The lengths of the air outlets of the first hot air knife 4, the second hot air knife 5, the third hot air knife 6, and the fourth hot air knife 7 are the dimensions of the air outlets of each hot air knife along the width direction of the aluminum foil 8.
[0027] The upper and lower surfaces of aluminum foil 8 are the opposite sides of aluminum foil 8.
[0028] The first hot air knife 4 comprises multiple knives that are fixed to the rolling mill 1 at intervals and arranged along the rolling direction of the rolling mill 1; the second hot air knife 5 comprises multiple knives that are fixed to the rolling mill 1 at intervals and arranged along the rolling direction of the rolling mill 1; the third hot air knife 6 comprises multiple knives that are fixed to the slitting machine 3 at intervals and arranged along the direction from feeding to discharging of the slitting machine 3; the fourth hot air knife 7 comprises multiple knives that are fixed to the slitting machine 3 at intervals and arranged along the direction from feeding to discharging of the slitting machine 3. The number of the first hot air knife 4, the second hot air knife 5, the third hot air knife 6, and the fourth hot air knife 7 can be set according to the material, thickness, and rolling oil characteristics of the aluminum foil 8. In this embodiment, each of the first hot air knife 4, the second hot air knife 5, the third hot air knife 6, and the fourth hot air knife 7 comprises two knives.
[0029] The air outlets of the first hot air knife 4, the second hot air knife 5, the third hot air knife 6, and the fourth hot air knife 7 are all spaced 5-10cm apart from the aluminum foil 8. This distance ensures that the hot air can effectively blow on the surface of the aluminum foil 8 without damaging it due to being too close.
[0030] The outlet air temperature range of the first hot air knife 4, the second hot air knife 5, the third hot air knife 6, and the fourth hot air knife 7 is 100-300℃. That is, the hot air knife is made of high-temperature resistant metal material and is equipped with heating wires and airflow channels inside. The temperature of the heating wire can be precisely adjusted through the temperature control system. The temperature range is 100-300℃, which is adjusted according to the different aluminum foil 8 materials and rolling oil characteristics. For example, for ordinary packaging aluminum foil 8, when the boiling point of the rolling oil used is low, the temperature can be set at about 150-200℃. For thicker aluminum foil 8 used in industry, if the rolling oil has high viscosity and a high boiling point, the temperature can be increased to 250-300℃.
[0031] The outlet air velocity of the first hot air knife 4, the second hot air knife 5, the third hot air knife 6, and the fourth hot air knife 7 is 5-15 m / s; that is, the airflow channel is connected to an external high-pressure air source, and the air velocity of the hot air knife is controlled by adjusting the air source pressure.
[0032] Oil-blocking cloth (not shown in the figure) is laid on the rolling mill 1 at the positions corresponding to the first hot air knife 4 and the second hot air knife 5. The oil-blocking cloth is located directly below the first hot air knife 4 and the second hot air knife 5; that is, the oil-blocking cloth is set at the trench position at the exit of the rolling mill 1, and the oil-blocking cloth must cover the entire trench position at the exit of the rolling mill 1. At the same time, the oil-blocking cloth is connected to the material transport vehicle to ensure that this position is not exposed when the material transport vehicle loads and unloads materials. The oil-blocking cloth is made of special oil-loving fiber fabric, such as chemically treated polyester fiber cloth, which has an extremely high oil absorption rate. In addition, the replacement cycle of the oil-blocking cloth can be determined according to specific production needs.
[0033] Compared with the prior art, the aluminum foil processing device in this embodiment designs a first hot air knife 4 and a second hot air knife 5 on the rolling mill 1, and a third hot air knife 6 and a fourth hot air knife 7 on the slitting machine 3. The outlet lengths of the first hot air knife 4, the second hot air knife 5, the third hot air knife 6, and the fourth hot air knife 7 are all greater than the width of the aluminum foil 8. The outlet of the first hot air knife 4 is aligned with the upper surface of the aluminum foil 8 rolled by the rolling mill 1, the outlet of the second hot air knife 5 is aligned with the lower surface of the aluminum foil 8 rolled by the rolling mill 1, and the outlet of the third hot air knife 6 is aligned with the upper surface of the aluminum foil 8 before slitting by the slitting machine 3. The fourth hot air knife 7... The air outlet is positioned at the lower surface of the aluminum foil 8 before slitting by the slitting machine 3. This allows the high-temperature hot air generated by the hot air knife on the rolling mill 1 to blow on the surface of the rolled aluminum foil 8, quickly evaporating the rolling oil on the surface of the aluminum foil 8 and causing the rolling oil to evaporate in the form of steam, thereby reducing the amount of oil on the surface of the aluminum foil 8. The hot air knife is designed on the slitting machine 3 because a small amount of rolling oil will adhere to the rolled aluminum foil 8 during subsequent transportation or waiting for slitting, or the rolling oil on the surface of the rolled aluminum foil 8 will not be completely removed. At this time, the rolling oil can be removed again by the hot air knife, which can further reduce the amount of oil on the surface of the aluminum foil 8, thereby better stabilizing the dyne value of the surface of the aluminum foil 8.
[0034] It should be noted that the various embodiments described above with reference to the accompanying drawings are only illustrative of the present invention and not intended to limit its scope. Those skilled in the art should understand that any modifications or equivalent substitutions made to the present invention without departing from its spirit and scope should be covered within the scope of the present invention. Furthermore, unless the context otherwise requires, singular terms include plural forms, and vice versa. Additionally, unless specifically stated otherwise, all or part of any embodiment may be used in conjunction with all or part of any other embodiment.
Claims
1. An aluminum foil processing apparatus, characterized in that, The aluminum foil processing apparatus includes a rolling mill for rolling aluminum foil, a winding machine for winding the aluminum foil rolled by the rolling mill, a slitting machine for slitting the aluminum foil on the sleeve taken off by the winding machine, a first hot air knife and a second hot air knife fixed to the rolling mill, and a third hot air knife and a fourth hot air knife fixed to the slitting machine. The outlet lengths of the first hot air knife, the second hot air knife, the third hot air knife, and the fourth hot air knife are all greater than the width of the aluminum foil. The outlet of the first hot air knife is positioned aligned with the upper surface of the aluminum foil rolled by the rolling mill, the outlet of the second hot air knife is positioned aligned with the lower surface of the aluminum foil rolled by the rolling mill, the outlet of the third hot air knife is positioned aligned with the upper surface of the aluminum foil before slitting by the slitting machine, and the outlet of the fourth hot air knife is positioned aligned with the lower surface of the aluminum foil before slitting by the slitting machine.
2. The aluminum foil processing apparatus as described in claim 1, characterized in that, The first hot air knife includes multiple knives that are fixed to the rolling mill at intervals and arranged along the rolling direction of the rolling mill; the second hot air knife includes multiple knives that are fixed to the rolling mill and arranged along the rolling direction of the rolling mill.
3. The aluminum foil processing apparatus as described in claim 2, characterized in that, The third hot air knife includes multiple knives that are fixed to the slitting machine at intervals and arranged along the direction of the slitting machine from feeding to discharging; the fourth hot air knife includes multiple knives that are fixed to the slitting machine in sequence and arranged along the direction of the slitting machine from feeding to discharging.
4. The aluminum foil processing apparatus as described in claim 3, characterized in that, The air outlets of the first hot air knife, the second hot air knife, the third hot air knife, and the fourth hot air knife are all spaced 5-10 cm apart from the aluminum foil.
5. The aluminum foil processing apparatus as described in claim 4, characterized in that, The outlet air temperature range of the first hot air knife, the second hot air knife, the third hot air knife, and the fourth hot air knife is 100-300℃.
6. The aluminum foil processing apparatus as described in claim 5, characterized in that, The outlet air velocity of the first hot air knife, the second hot air knife, the third hot air knife, and the fourth hot air knife is 5-15 m / s.
7. The aluminum foil processing apparatus as described in claim 1, characterized in that, The rolling mill is equipped with oil-blocking cloths corresponding to the positions of the first hot air knife and the second hot air knife, and the oil-blocking cloths are located directly below the first hot air knife and the second hot air knife.