Large charging tray for winding and unwinding metal thin strip

Abstract

The utility model provides a big charging tray for collecting and releasing a metal thin strip, which comprises a first substrate, a second substrate and a lining ring positioned between the first substrate and the second substrate, the first substrate, the second substrate and the lining ring are physically connected through at least two fixing pieces to form an accommodating groove, and the metal thin strip is wound on the lining ring and limited in the accommodating groove by the first substrate and the second substrate. Light-weight paper substrates are adopted for assembly, the packaging weight is reduced, the transportation cost can be reduced, and the risk that in the material receiving and discharging process, the reel rotates, and consequently the strip is pulled apart due to the weight is reduced.

Description

Technical Field

[0001] This utility model relates to the field of metal strip processing and manufacturing, specifically a large tray for storing and holding thin metal strips. Background Technology

[0002] In electromagnetically heated non-combustible tobacco cartridges, a thin sheet-like sensor is typically pre-inserted into the cartridge. This thin sheet-like sensor is generally derived from strips of metal cut to the desired dimensions (referred to as "slitting"). There are generally two methods for the continuous winding of the metal strip during the slitting process: one is to use metal or tempered glass clips for assisted clamping, removing the clips after winding and fixing it with metal wire or tape, known as the trayless mode; the other is to use a tray for direct winding, where the metal strip is fixed between two circular plates on the tray after winding, known as the tray mode.

[0003] Typically, unwinding without a spool is only suitable for single-reel unwinding, with the material being unwound horizontally. This method is unsuitable for simultaneous unwinding of multiple reels and vertical unwinding, especially for thinner and narrower metal strips, as the strips are prone to crumbling during unwinding. Spool unwinding offers advantages such as protecting the internal material, uniform winding, and simultaneous vertical unwinding of multiple reels, and is commonly used for winding metal strips. These spools are typically made of acrylic, resin, or metal. However, the spools often have high density and weight, requiring significant tension to rotate them during unwinding, which can easily cause thinner and narrower strips to break.

[0004] Therefore, considering the broad prospects and ease of application of tray-type unwinding, and based on the shortcomings of existing technologies, this application proposes a large tray for unwinding and winding thin metal strips, achieving better manufacturing results. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this utility model provides a large tray for receiving and storing thin metal strips, comprising a first substrate, a second substrate, and a bushing located between the two. The first substrate, the second substrate, and the bushing are physically connected by at least two fasteners to form a receiving groove. The thin metal strip is wound around the bushing and confined within the receiving groove by the first substrate and the second substrate. The first substrate, the second substrate, and the bushing have through roller holes near their centers. The first substrate and / or the second substrate have observation holes extending in the radial direction. The first substrate and the second substrate are paper substrates.

[0006] Furthermore, the thickness of each of the first and second substrates is not less than 2 mm, and the weight is not less than 0.5 kg.

[0007] Furthermore, the outer diameter of the first substrate and the second substrate is not less than 400 mm.

[0008] Furthermore, the observation hole extends to cover the bushing, and a slit is set around the periphery of the overlapping bushing to insert the thin metal strip.

[0009] Furthermore, there are at least two observation holes, and their width gradually increases as they extend outward in the radial direction.

[0010] Furthermore, roller positioning grooves are provided at the roller holes of the first substrate and the second substrate.

[0011] Furthermore, fasteners include screws, pins, or metal clips.

[0012] Furthermore, the number of fasteners is two or more, and they are evenly distributed within the range of the bushing.

[0013] Furthermore, the depth of the receiving groove is not less than 250mm.

[0014] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0015] 1. The use of lightweight paper substrates for assembly reduces packaging weight, thereby lowering transportation costs and reducing the risk of the tape breaking due to weight during reel rotation during receiving and unloading.

[0016] 2. The assembly method using physical connections with fasteners allows the stress elasticity of the substrate itself to function, reducing deformation after the strip is wound. Additionally, the relatively soft paper material can absorb some external mechanical stress, protecting the thinner, narrower metal strip inside and preventing deformation.

[0017] 3. During the feeding and unloading process, collisions and scratches between the metal strip and the substrate are inevitable. However, the use of paper substrate reduces the damage caused by scratches to the metal strip and overcomes the risks of edge curling and curling.

[0018] 4. It can absorb residual grease and moisture on metal strips. During the slitting process, lubricating oil is often sprayed onto the slitting tools, inevitably leaving some grease or moisture residue on the metal strip. This residue can leach out of the metal coil during storage, leading to corrosion if not removed promptly. Paper trays, with their absorbent properties, can mitigate this problem.

[0019] 5. Paper substrates have excellent biodegradability, thus possessing good environmental characteristics. Trays that are difficult to recycle and reuse can be discarded.

[0020] 6. Low cost: Compared with traditional tray manufacturing processes and materials, the cost is reduced by more than 50%. Attached Figure Description

[0021] Figure 1A schematic diagram illustrating the application of inserting a thin sheet-like metal sensor into a cigarette cartridge.

[0022] Figure 2 This is a schematic diagram of the large material tray.

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the large material tray.

[0024] Figure 4 This diagram shows the stacking and handling status of various material trays. Detailed Implementation

[0025] 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.

[0026] In this application, the metal strip is a magnetic material, possessing the properties of a sensor material, allowing ready-to-use smoking products made from it to be heated by an induction heater after the metal strip portion is introduced into the tobacco sheet. The metal strip is cut into segments of finite length. The cutting unit is a suction roller that is driven or can be driven to rotate about a rotation axis, and has a cutting roller that cooperates with the suction roller and is driven or can be driven to rotate about the rotation axis, wherein at least one metal strip is guided between the cutting roller and the suction roller to complete the cutting step.

[0027] like Figure 1 As shown, a thin metal sheet-like sensor is inserted obliquely along the P direction from the end face of the formed rod-shaped aerosol generating substrate. The square sensor is cut from the thin metal strip to a predetermined length. According to the insertion process, the aerosol generating matrix (tobacco sheets, granules, etc.) must not produce curling or rolling edges. However, the metal strip is heavy and lacks flexibility, making deformation difficult to avoid during the transportation, winding, and cutting of various existing trays. Therefore, the solution proposed in this application can better solve these problems.

[0028] Reference Figure 2 The large tray includes a first substrate 1, a second substrate 2, and a bushing 3 located between them. All three are arranged concentrically in a near-circular pattern and are physically connected by a fastener 4. The first substrate 1 and second substrate 2 are relatively large, while the bushing 3 is relatively small. Therefore, when stacked, they form a receiving groove 5 for winding and accommodating the thin metal strip, which is wound around the bushing. The first substrate 1, second substrate 2, and bushing 3 have through-holes 102 near their centers.

[0029] In some feasible embodiments, the first substrate 1 and the second substrate 2 are paper-based, and the main constituent materials are wood fiber, resin, and adhesive. The thickness of a single substrate is not less than 2 mm, preferably 2-10 mm; the weight of a single substrate is in the range of 0.5-2.5 kg, preferably 0.7-1.5 kg. The outer diameter of the first substrate 1 and the second substrate 2 is in the range of 400-850 mm, preferably 500 mm. The width of the receiving groove 5 is in the range of 2-6 mm, that is, the thickness of the bushing 3 is in the range of 2-6 mm.

[0030] In some feasible implementations, the outer diameter of the bushing 3 is 140 mm, and the inner diameter of its hole (roller hole 102) is 76 mm, which is suitable for the roller size of automated equipment.

[0031] In some feasible embodiments, the depth of the receiving groove 5 is not less than 250 mm, preferably 500 mm, and the thickness is 4 mm. This results in a total tray weight of 2.1 kg, capable of receiving relatively heavy thin and narrow metal strips, such as those 0.08 mm thick, 4 mm wide, and with a density of 8.3 g / cm³. 3 When loading metal strip, the gross weight after filling the entire tray is 10.3KG, and the net weight of the metal strip is approximately 8.2KG. It is understood that the depth of the receiving groove 5 is the outer diameter of the substrate minus the outer diameter of the bushing 3, thus allowing for the adaptation of different sized trays to accommodate different strip length requirements.

[0032] The fastener 4 uses physical fixing methods such as screws, pins, or metal clips. For ease of fixing, at least two fasteners are used, preferably three. Using one or more combinations of these methods can achieve a similar purpose, preventing relative sliding movement. In a less effective solution, fastener 4 uses a single screw, allowing the first substrate 1, second substrate 2, and bushing 3 to form a stacked structure. However, due to insufficient limiting strength, the substrates will rotate around this single screw, creating an unstable structure; therefore, this method is rarely used. In a preferred solution, considering the potential for unnecessary deformation of the paper-based material, gaskets can be placed at the contact points to reduce wear. (Refer to...) Figure 2 Three fasteners 4 are selected and evenly distributed within the range of the bushing 3 to balance the force and achieve stability.

[0033] Furthermore, the preferred paper base material has a density of 0.7 g / cm³. 3 83 wt% wood fiber (lignin CAS#8068-03-9, cellulose CAS#11132-73-3, hemicellulose CAS#9014-63-5), 12 wt% urea-formaldehyde resin (formaldehyde CAS#50-00-0, urea CAS#57-13-6, melamine CAS#108-80-5), 5 wt% paraffin and others (paraffin CAS#8002-74-2).

[0034] Furthermore, the main materials used in preferred paper-based materials include waste paper pulp, wood pulp, and adhesives. These materials are mixed and pressed through a special process. Waste paper pulp and wood pulp serve as the fiber source, providing the basic structure; the adhesives bind the fibers tightly, enhancing the strength and stability of the board. In addition, to further enhance its mechanical properties, mechanical reinforcing materials can be added. For example, chemical additives such as corn starch, tapioca starch, and heavy metals can be added during the papermaking process. These additives improve fiber bonding, thereby increasing the tensile strength of the paperboard. Another method is to use high-pressure forming, which increases density and strength by compressing the paper fibers. In certain specific applications, other fiber materials, such as coconut fiber pulp, can also be used. This material can be mixed with wood pulp to produce stiffer cardboard, characterized by high water absorption but low swelling, making it suitable for the production of medium-density cardboard.

[0035] Since a starting segment is required during the winding process, refer to... Figure 2 and Figure 3 Observation holes 101 extending radially are provided on the first and second substrates, overlapping the bushing 3. A material slot 301 is provided around the overlapping bushing 3 to insert a thin metal strip to form the initial end. It is understood that, for this purpose, the observation holes 101 can be located on either or both of the first and second substrates, with at least two holes. This allows for observation of the internally wound metal strip's allowance and shape quality at different rotational positions. Furthermore, this symmetrical observation window design significantly reduces the substrate's weight without significantly affecting its overall mechanical properties. In this embodiment, three observation holes 101 are evenly distributed on one side of the substrate.

[0036] Furthermore, the width of the observation hole 101 gradually increases as it extends outward in the radial direction, meaning that the length of the hole increases as it extends outward.

[0037] In the preferred scheme, such as Figure 2 As shown, the three observation holes 101 and the three fixing parts 4 are evenly arranged in their respective positions and are distributed in a cross pattern, so that the substrate is subjected to more uniform force and is less prone to damage.

[0038] As mentioned above, the roller hole 102 needs to be inserted into the roller shaft during the processing. Therefore, in order to prevent slippage or rotation, roller shaft positioning grooves 103 are provided at the roller holes 102 of the first substrate and the second substrate, which are engaged with the positioning position of the roller shaft.

[0039] Reference Figure 4 The winding process of multiple stacked metal strips mainly includes the following steps:

[0040] S1: Selection and setup of the coiler. Select a suitable coiler, place one or more reels on the rollers, and adjust them according to the thickness and width of the strip to ensure that the coiler's mandrel diameter and winding speed match the winding requirements of the strip.

[0041] S2: Control during the winding process. During winding, it is necessary to control the torque and tension of the winding machine. Typically, after winding the strip for approximately 0.5-1 turns, the winding machine switches to torque control mode and sets different constant torque plateaus and slopes within different ranges to reduce the impact on the strip during tension increases.

[0042] S3: Prevent edge curling and rolling defects. During the winding process, every 10-60 meters of strip wound along its length, displacement is required in the width direction to overcome edge curling and rolling defects at the winding end. This can be achieved by installing an instrument in the winding device that can measure the winding length of the strip and provide a signal according to a set value, as well as a misalignment pushing component for correction.

[0043] S4: Roll Diameter Calculation and Control. Throughout the winding process, roll diameter calculation is required. The calculation period T is the time it takes for the drum to complete one revolution at the minimum diameter and maximum linear speed, and the roll diameter change rate is the change in roll diameter per unit time. These calculations allow for precise control of the winding process, ensuring the flatness of the strip.

[0044] S5: Material Quality Control and Inspection. After winding, the roll material needs to be inspected to ensure its flatness and tension fluctuations are within acceptable limits. Unqualified roll material needs to be reprocessed or have its parameters adjusted.

[0045] Therefore, based on this solution and after experimental verification, compared with the use of acrylic / metal composite materials and glass fiber reinforced resin trays, the storage capacity per unit weight is increased by 81%, the surface damage rate of the strip is reduced by 94%, and the thermal deformation (Δ20℃) is reduced by 72%, which can better achieve the effect of this application.

[0046] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A large tray for receiving and storing thin metal strips, characterized in that, include: A first substrate, a second substrate, and a bushing located between them are physically connected by at least two fasteners to form a receiving groove. A thin metal strip is wound on the bushing and is defined by the first substrate and the second substrate within the receiving groove. The first substrate, the second substrate, and the bushing are provided with through roller holes near the center position, and the first substrate and / or the second substrate are provided with observation holes extending in the radial direction. The first and second substrates are paper-based materials.

2. The large tray for receiving and storing thin metal strips according to claim 1, characterized in that, The thickness of each substrate (first and second) shall not be less than 2 mm and the weight shall not be less than 0.5 kg.

3. The large tray for receiving and storing thin metal strips according to claim 1, characterized in that, The outer diameter of the first and second substrates is not less than 400 mm.

4. The large tray for receiving and storing thin metal strips according to claim 1, characterized in that, The observation hole extends to cover the bushing, and a slit is set around the perimeter of the overlapping bushing to insert the thin metal strip.

5. The large tray for receiving and storing thin metal strips according to claim 1, characterized in that, There are at least two observation holes, and the width gradually increases as they extend outward in the radial direction.

6. The large tray for receiving and storing thin metal strips according to claim 1, characterized in that, Roller positioning grooves are provided at the roller holes of the first and second substrates.

7. The large tray for receiving and storing thin metal strips according to claim 1, characterized in that, Fasteners include screws, pins, or metal clips.

8. The large tray for receiving and storing thin metal strips according to claim 1, characterized in that, The number of fasteners is two or more, and they are evenly distributed within the area of ​​the bushing.

9. The large tray for receiving and storing thin metal strips according to claim 1, characterized in that, The depth of the receiving groove shall not be less than 250mm.

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