High-precision combined seaming device

Abstract

The utility model discloses a high-precision combined type roll seal device, including the jar body, the jar body top is equipped with the jar mouth, and the jar mouth forms the roll edge to the outside radian extension, the jar body top is equipped with the jar cover, and the jar cover lower extreme shape is matched with the jar mouth, the jar cover top is equipped with the assembly slot, and is equipped with the rolling head in the assembly slot, the jar body is equipped with the drive unit outward, the jar body is equipped with the roll edge spare outward, the roll edge spare lower extreme is equipped with the roll edge pearl, the utility model discloses the structural design of jar mouth contraction, radian extension roll edge, cooperates the jar cover lower extreme shape and the rolling head, the synergistic effect of roll edge spare, roll edge pearl, forms two -fold seal roll, can under high -speed production working condition, accurate control roll seal key index, guarantees long -term stable and meets high -end quality standard, avoids roll edge defect, promotes jar body sealing integrity and structural strength, two -fold seal roll strengthens the resistance ability of jar body to external impact, and roll seal part is not easy because of collision, extrusion deformation.

Description

Technical Field

[0001] This utility model relates to the field of beverage can processing technology, and in particular to a high-precision combined roll-sealing device. Background Technology

[0002] In many industries such as food, beverage, chemical, and pharmaceutical, can packaging is widely used for product storage and distribution due to its excellent sealing, portability, and protection of contents. As the core link in can forming and sealing, the quality of roll sealing technology directly determines the physical protection performance (such as impact resistance and deformation resistance) and chemical protection performance (such as the ability to block the penetration of oxygen, water vapor, and corrosive media) of the can, thereby affecting the product's shelf life, safety, and market acceptance.

[0003] As market demands for product quality continue to rise, especially among high-end customers, extremely stringent standards have been set for key indicators of tank sealing. Simultaneously, to meet the needs of large-scale production, production line operating speeds are continuously increasing, posing a significant challenge to the stability and precision control capabilities of sealing devices under high-speed conditions.

[0004] Currently, existing roll sealing devices are gradually revealing many problems in practical applications: First, during high-speed production, the mechanical structure of the device is prone to vibration, displacement, or wear, resulting in large fluctuations in the dimensional accuracy of the roll sealing. This makes it difficult to consistently meet high-end quality standards over a long period, and defects such as excessively loose or tight edges, wrinkles, or cracks frequently occur, directly affecting the sealing performance and structural strength of the can. Second, the device is not resistant to external impacts. The roll sealing area is prone to deformation due to collisions and compression, damaging the integrity of the seal. Furthermore, when facing long-term corrosion from internal media (such as acidic beverages and corrosive chemical raw materials), the corrosion resistance of the roll sealing structure is poor, easily leading to leakage or deterioration of the contents, significantly shortening the product's shelf life. Third, to compensate for the instability of roll sealing quality, companies need to invest a lot of manpower and resources in full-process quality inspection and rework, resulting in high quality control costs. At the same time, problems such as production line downtime and material waste caused by roll sealing failures also seriously restrict the improvement of production efficiency.

[0005] To address this issue, a high-precision combined sealing device is proposed to solve the problems existing in the prior art. Utility Model Content

[0006] The purpose of this utility model is to address the aforementioned problems by providing a high-precision combined sealing device. This utility model utilizes a structural design of can mouth contraction and arc-extended rolled edge, combined with the shape of the lower end of the can lid and the synergistic effect of the rolling head, flanging parts, and flanging beads, to form a double seal. This allows for precise control of key sealing indicators under high-speed production conditions, ensuring long-term stable compliance with high-end quality standards, avoiding rolled edge defects, and improving the sealing integrity and structural strength of the can. The double seal enhances the can's resistance to external impacts, making the sealed area less prone to deformation due to collisions and compression. Simultaneously, the optimized structure improves the barrier properties and corrosion resistance of the internal media, reducing the risk of leakage and deterioration of contents. To achieve the above-mentioned utility model objectives, the technical solution adopted is as follows:

[0007] According to one aspect of this utility model, a high-precision combined sealing device is provided, including a can body, the interior of which is hollow, a can opening at the upper end of the can body, the can opening being constricted and extending outward in an arc to form a rolled edge, a can lid at the top of the can body, the lower end of the can lid being shaped to match the can opening, an assembly groove being provided at the top of the can lid, and a rolling head being provided in the assembly groove, a driving unit being provided outside the can body, and a flange being provided outside the can body, the flange being connected to the driving unit, and a flange bead being provided at the lower end of the flange, which, together with the rolling head, forms a double seal between the can lid and the rolled edge.

[0008] Preferably, an R-angle is formed between the flange bead and the lower edge of the flange piece, and the size of the R-angle is 2.10mm.

[0009] Preferably, the diameter of the rolling head is Φ62.40mm, and the diameter of the mounting groove on the top of the can lid matches the diameter of the rolling head.

[0010] Preferably, the width of the rolled edge is 2.50±0.05, and the upper and lower sides of the rolled edge are respectively provided with an inner R′ angle and a lower R′ angle. The size of the inner R′ angle is 2.10mm, and the size of the lower R′ angle is 3.80mm. The R angles cooperate with the inner R′ angle and the lower R′ angle.

[0011] Preferably, the can body is made of tinplate and the can lid is made of aluminum alloy.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0013] This utility model discloses a high-precision combined sealing device. Through the structural design of can mouth shrinkage and arc extension edge rolling, combined with the shape of the lower end of the can lid and the synergistic effect of the rolling head, flange, and flange beads, a double sealing is formed. Under high-speed production conditions, it can accurately control key sealing indicators, ensure long-term stable compliance with high-end quality standards, avoid edge rolling defects, and improve the sealing integrity and structural strength of the can. The double sealing enhances the can's resistance to external impacts, and the sealed part is not easily deformed by collision or squeezing. At the same time, the optimized structure can improve the barrier and corrosion resistance of the internal medium, reducing the risk of leakage and deterioration of contents. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a utility model Figure 1 A front sectional view of the tank body;

[0016] Figure 3 This is a schematic diagram of the operation of the can body and the flange part of this utility model;

[0017] Figure 4 This is a schematic diagram of the roll-sealing and bonding process before the improvement of this utility model product;

[0018] Figure 5 This is a schematic diagram of the improved roll-sealing bonding of the product of this utility model;

[0019] Figure 6 This is a schematic diagram of the double-layer roll seal of this utility model;

[0020] In the attached diagram, 1 is the can body; 2 is the can mouth; 3 is the rolled edge; 4 is the can lid; 5 is the assembly groove; 6 is the rolling head; 7 is the flanged part; 8 is the flanged bead; 9 is the R-angle; 10 is the inner R′ angle; and 11 is the lower R′ angle. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of the utility model, and these aspects can be achieved even without these specific details.

[0022] Please see Figures 1 to 6 This utility model provides a high-precision combined sealing device, the technical solution of which is as follows:

[0023] The can includes a can body 1, which is hollow inside. The upper end of the can body 1 is provided with a can opening 2, which is tapered. The can opening 2 extends outward in an arc to form a rolled edge 3. The top of the can body 1 is provided with a can lid 4, and the lower end of the can lid 4 is shaped to match the can opening 2. The top of the can lid 4 is provided with an assembly groove 5, and a rolling head 6 is provided in the assembly groove 5. The can body 1 is provided with a drive unit and a flange 7, which is connected to the drive unit. The lower end of the flange 7 is provided with a flange bead 8, which, together with the rolling head 6, forms a double seal between the can lid 4 and the rolled edge 3.

[0024] The drive unit is an existing can sealing and rolling device, which will not be described in detail. Through the structural design of the can opening 2 shrinking and the arc-extended rolled edge 3, combined with the shape of the lower end of the can lid 4 and the synergistic effect of the rolling head 6, the flange part 7, and the flange bead 8, a double sealing and rolling is formed. Under high-speed production conditions, it can accurately control key rolling and sealing indicators (such as the thickness and tightness of the rolled edge 3), ensuring long-term stable compliance with high-end quality standards, avoiding defects in the rolled edge 3, and improving the sealing integrity and structural strength of the can. The double sealing and rolling enhances the can's resistance to external impacts, and the rolled part is not easily deformed by collisions and squeezing. At the same time, the optimized structure can improve the barrier and corrosion resistance to internal media (acids, corrosives, etc.), reduce the risk of leakage and deterioration of contents, and significantly extend the product's shelf life.

[0025] Stable sealing quality reduces production line downtime and material waste caused by sealing problems. Combined with the drive unit, it can significantly improve production efficiency. It also reduces the frequency of quality inspection and rework throughout the process, lowers quality control costs, and helps enterprises improve economic benefits and market competitiveness.

[0026] The flange bead 8 and the lower edge of the flange part 7 form an R angle 9, the size of which is 2.10mm.

[0027] By reducing the radius 9 of the flange bead 8 from 2.20mm to 2.10mm, the flange size is precisely controlled, significantly reducing the extrusion and friction on the can coating layer (especially the can opening 2 and the edge 3 area) during the sealing pressure stroke. This prevents the coating layer from being damaged or peeling off due to excessive force, maintaining the integrity of the can's appearance and its anti-corrosion performance, and extending the can's service life. The smaller radius 9 optimizes the contact force state between the flange bead 8, the edge 3, and the can lid 4, reducing the risk of deformation and misalignment of the edge 3 due to uneven force, further improving the consistency and stability of the double sealing roll, resulting in smaller fluctuations in sealing quality under high-speed production and continuously outputting high-standard sealing effects.

[0028] The diameter of the rolling head 6 is Φ62.40mm, and the diameter of the mounting groove 5 on the top of the can cover 4 matches the diameter of the rolling head 6.

[0029] By reducing the diameter of the rolling head 6 from Φ62.56mm to Φ62.40mm, it precisely matches the assembly groove 5 of the can lid 4, effectively suppressing deformation of the can shoulder during sealing; avoiding appearance defects (such as wrinkles and dents) caused by deformation, meeting the stringent requirements of high-end customers for the exquisite appearance of the can, and improving the visual quality and market competitiveness of the product; reducing shoulder deformation can maintain the structural stability of the fit between the can lid 4, the can opening 2, and the rolled edge 3, ensuring the sealing integrity of the double sealing roll, reducing the risk of sealing failure (such as micro-leakage) caused by lid deformation, strengthening the can's ability to protect the internal media, and helping to extend the product's shelf life;

[0030] For can lids 4 made of thin, high-toughness, or easily deformable materials (such as lightweight alloys or new composite lid materials), this improvement can reduce damage to the lid during the sealing process, broaden the range of materials that can lid 4 can be selected to meet more diverse product design needs, and at the same time reduce material waste and defect rate caused by lid damage.

[0031] The width of the rolled edge 3 is 2.50±0.05, and the upper and lower sides of the rolled edge 3 are respectively provided with an inner R′ angle 10 and a lower R′ angle 11. The size of the inner R′ angle 10 is 2.10mm, and the size of the lower R′ angle 11 is 3.80mm. The R angle 9 cooperates with the inner R′ angle 10 and the lower R′ angle 11.

[0032] The well-proportioned R-angle 9, inner R′ angle 10, and lower R′ angle 11 create a "flexible-rigid" transition structure for the rolled edge 3. When subjected to external impacts (such as drops or compression), the corners can absorb energy through slight deformation, preventing cracking and seal failure while maintaining the overall structural integrity of the can. Simultaneously, it improves the fit of the double-layer seal, increasing it from 75% to nearly 100%. This is equivalent to building a "seamless sealing wall" between the can body and the lid 4, more thoroughly preventing the intrusion of oxygen, moisture, microorganisms, and corrosive media. Even in extreme environments such as high humidity and strong corrosion, it ensures the stability of the contents, significantly extending the shelf life of food, pharmaceutical, and chemical products and reducing the risk of spoilage and failure.

[0033] The can body 1 is made of tinplate, and the can lid 4 is made of aluminum alloy.

[0034] Tinplate possesses excellent rigidity, corrosion resistance, and sealing properties. Using it to make the can body 1 can effectively resist long-term erosion from internal media (such as acidic beverages and oily foods). Simultaneously, its high structural strength enhances the overall resistance to external impacts and deformation, making it particularly suitable as the main material for hollow can bodies 1, ensuring stability during storage and transportation. Aluminum alloy, on the other hand, is lightweight and highly ductile. When used for the can lid 4, it precisely fits the contractile structure and sealing requirements of the can opening 2. When combined with the rolling head 6 and the flange 7 to form a double seal, it can achieve a tight fit through appropriate deformation, reducing the load on the sealing area from the weight of the can lid 4 while ensuring the integrity of the seal after sealing.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A high-precision combined sealing device, characterized in that, include: The can body (1) is hollow inside. The upper end of the can body (1) is provided with a can opening (2), and the can opening (2) is constricted. The can opening (2) extends outward in an arc to form a rolled edge (3). The top of the can body (1) is provided with a can cover (4), and the lower end of the can cover (4) is shaped to match the can opening (2). The top of the can cover (4) is provided with an assembly groove (5), and a rolling head (6) is provided in the assembly groove (5). The can body (1) is provided with a drive unit outside. The can body (1) is provided with a flange (7), and the flange (7) is connected to the drive unit. The lower end of the flange (7) is provided with a flange bead (8), which, together with the rolling head (6), forms a double seal between the can cover (4) and the rolled edge (3).

2. The high-precision combined sealing device according to claim 1, characterized in that: The flange bead (8) and the lower edge of the flange piece (7) form an R angle (9), the size of which is 2.10mm.

3. The high-precision combined sealing device according to claim 1, characterized in that: The diameter of the rolling head (6) is Φ62.40mm, and the diameter of the mounting groove (5) on the top of the can cover (4) matches the diameter of the rolling head (6).

4. The high-precision combined sealing device according to claim 1, characterized in that: The width of the rolled edge (3) is 2.50±0.05, and the upper and lower sides of the rolled edge (3) are respectively provided with an inner R′ angle (10) and a lower R′ angle (11). The size of the inner R′ angle (10) is 2.10mm, and the size of the lower R′ angle (11) is 3.80mm. The R angle (9) cooperates with the inner R′ angle (10) and the lower R′ angle (11).

5. The high-precision combined sealing device according to claim 1, characterized in that: The can body (1) is made of tinplate, and the can lid (4) is made of aluminum alloy.

Images