Ultraviolet sterilization device for packaging cans
By designing a flexible chain conveyor and guide rails, the problems of excessive length and poor adaptability of traditional packaging can UV sterilization devices have been solved, achieving efficient and flexible sterilization effects and production adaptability, making it suitable for the transformation of packaging production lines with limited space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA THREE IND INTEGRATION IND DEV CO LTD
- Filing Date
- 2025-06-24
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional UV sterilization devices for packaging cans are too long and have poor adaptability, making them difficult to install in space-constrained production environments and adapt to different production line layouts. Furthermore, they are complex to modify and have high production costs.
The ring design of the flexible chain conveyor, combined with guide rails and support devices, enables the packaging cans to reciprocate within the sterilization area. It offers a single inlet and dual outlet design, and its modular structure can adapt to different production needs.
It significantly shortens the length of the device under the same disinfection time, improves the sterilization effect, ensures production continuity and flexibility, reduces noise, facilitates maintenance, adapts to different production line layouts, and saves space and costs.
Smart Images
Figure CN224387804U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sterilization equipment technology, and in particular relates to an ultraviolet sterilization device for packaging cans. Background Technology
[0002] In the packaging industry, thorough and effective sterilization of packaging cans is of paramount importance. Ultraviolet (UV) sterilization technology, as a highly efficient and environmentally friendly sterilization method, has been widely applied in the field of packaging can sterilization.
[0003] In traditional technology, UV sterilization devices for packaging cans typically employ a linear conveying method, with the cans passing through the sterilization zone in a single pass for disinfection. However, this traditional design has several significant technical drawbacks that limit its sterilization effectiveness and application scope. First, to ensure sufficient sterilization time, traditional linear UV sterilization devices often require a relatively long device length. This presents a space-constrained challenge in production environments, especially when modifying existing packaging lines, increasing the difficulty of equipment installation and layout.
[0004] Secondly, traditional ultraviolet sterilization devices have poor adaptability. Their input and output interfaces are usually fixed, making it difficult to flexibly adapt to different packaging production line layouts and production needs. When adjustments to the production process or changes in product specifications are required, the modification and debugging of traditional devices are often quite complex, increasing production costs and time.
[0005] In view of the above-mentioned technical problems of traditional ultraviolet sterilization devices for packaging cans, this utility model proposes an innovative ultraviolet sterilization device for packaging cans. Utility Model Content
[0006] The purpose of this utility model is to provide a packaging can ultraviolet sterilization device, which solves the problems of unstable sterilization effect, excessive length and poor adaptability of traditional devices by optimizing the device structure and conveying method.
[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0008] This utility model is a packaging can ultraviolet sterilization device, including a frame, an outer cover installed on the frame, and several rows of ultraviolet lamps installed inside the outer cover. A flexible chain conveyor is installed on the frame; a horizontal partition is fixed on the frame; and guide rails are fixed on the horizontal partition to the inner and outer sides of the annular flexible chain conveyor of the flexible chain conveyor.
[0009] As a preferred technical solution of this utility model, two rows of supporting devices for supporting the flexible chain plate on the flexible chain plate conveying device are also fixed on the horizontal partition; the supporting device includes a fixed column fixed on the horizontal partition; a U-shaped plate is fixed at the upper end of the fixed column; and rollers are fixed on both sides of the U-shaped plate.
[0010] As a preferred embodiment of this utility model, the guide rail includes two rectangular uprights vertically fixed to the horizontal partition and arranged parallel to each other; an outer guide ring plate is fixed to the upper end of the two rectangular uprights, surrounding the outer side of the annular flexible chain plate of the flexible chain conveyor; a row of L-shaped support plates is fixed to the inner sides of the two rectangular uprights respectively; an inner guide ring plate is fixed to the upper end of the two rows of L-shaped support plates, surrounding the inner side of the annular flexible chain plate of the flexible chain conveyor; a feed guide groove is provided on one straight plate side of one end of the outer guide ring plate, inclined downward toward the flexible chain conveyor; a first discharge guide groove is provided on the arcuate part of the same end of the outer guide ring plate, inclined downward outward, and an arcuate fixed guide plate is fixed between the side wall end of the first discharge guide groove adjacent to the feed guide groove and the inner guide ring plate; a first window is opened on the side wall of one end of the outer cover to cooperate with the feed guide groove; a second window is opened on the end face of the same end of the outer cover to cooperate with the first discharge guide groove.
[0011] As a preferred technical solution of this utility model, a second discharge guide groove is provided on the opposite side of the straight plate portion at the same end of the outer guide ring plate, which is inclined downwards and outwards, and a slot channel is opened on the inner wall at the slot opening connected to the outer guide ring plate; a third window is opened on the opposite side wall at the same end of the outer cover to cooperate with the second discharge guide groove.
[0012] As a preferred embodiment of this utility model, a discharge guide is installed on both the outer guide ring plate and the second discharge guide groove. The discharge guide includes a flow guide arc plate whose two ends are tangentially fitted to the outer wall of the inner guide ring plate and the inner wall of the first discharge guide groove, which is adjacent to the second discharge guide groove. A U-shaped plug is fixed to the outer wall of the flow guide arc plate at one end of the second discharge guide groove and inserted at the corner connection between the second discharge guide groove and the outer guide ring plate.
[0013] As a preferred embodiment of this utility model, a closed insert plate is inserted into the slot channel, and the inner side of the closed insert plate is flush with the inner wall of the connection between the outer guide ring plate and the inner wall.
[0014] This utility model has the following beneficial effects:
[0015] This invention utilizes a circular conveyor design with a flexible chain conveyor, allowing packaging cans to move back and forth within the sterilization area. This design offers dual advantages: under the same sterilization time requirements, it significantly shortens the overall length of the device, saving space, making it particularly suitable for retrofitting production lines with limited space; if the device length is limited, its reciprocating conveying extends the ultraviolet irradiation time of the packaging cans, improving the sterilization effect and ensuring hygiene and safety.
[0016] The flexible chain conveyor of this utility model achieves continuous cyclic conveying through its annular flexible chain plate. Combined with guide rails that precisely limit the trajectory of the packaging cans on the chain plate, and a supporting device that provides uniform support, it effectively reduces friction and wear, thus constructing an efficient and stable conveying system. This prevents the packaging cans from shifting or tipping over, ensures smooth and reliable conveying, guarantees production continuity, and reduces noise.
[0017] This invention features a single input port and dual output ports, facilitating integration with existing production lines. The output ports can be flexibly switched via a sealed insert plate to adapt to different subsequent processes. Furthermore, the discharge guide further optimizes the output direction of the second discharge guide trough, ensuring that the packaging cans accurately and smoothly enter subsequent processes, thus improving production flexibility.
[0018] This utility model adopts a modular design, making each component easy to disassemble and replace, facilitating daily maintenance and repair. Meanwhile, the first and second windows on the outer cover allow operators to visually observe the material feeding and discharging process, enabling timely detection and adjustment of any problems.
[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying 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.
[0021] Figure 1 This is a schematic diagram of the structure of the ultraviolet sterilization device for packaging cans according to this utility model.
[0022] Figure 2 This is a structural diagram of the frame, flexible chain conveyor, horizontal partition, support device, and guide rail.
[0023] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.
[0024] Figure 4 for Figure 2A schematic diagram of the structure after the guide rails have been removed.
[0025] Figure 5 for Figure 4 A magnified view of a section at point B.
[0026] Figure 6 This is a schematic diagram of the outer casing and ultraviolet lamp.
[0027] Figure 7 This is a schematic diagram of the structure after removing the outer cover in the second specific embodiment.
[0028] Figure 8 for Figure 7 A magnified view of a section at point C.
[0029] Figure 9 for Figure 7 A schematic diagram of the structure for installing the discharge guide.
[0030] Figure 10 for Figure 7 A schematic diagram of the structure for installing the enclosed insert plate.
[0031] Figure 11 This is a schematic diagram of the discharge guide.
[0032] Figure 12 This is a schematic diagram of the closed insert plate.
[0033] The attached diagram lists the components represented by each number as follows:
[0034] 1-Frame, 2-Outer cover, 3-UV lamp, 4-Flexible chain conveyor, 5-Horizontal partition, 6-Guide railing, 7-Supporting device, 71-Fixed column, 72-U-shaped plate, 73-Idler roller, 61-Rectangular upright plate, 62-Outer guide ring plate, 63-L-shaped support plate, 64-Inner guide ring plate, 65-Feed guide trough, 66-First discharge guide trough, 67-Arc-shaped fixed guide plate, 21-First window, 22-Second window, 23-Third window, 68-Second discharge guide trough, 69-Slot channel, 8-Discharge guide, 81-Guide arc plate, 82-U-shaped plug, 9-Enclosed insert plate. Detailed Implementation
[0035] 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 scope of protection of the present utility model. Specific Implementation Example 1:
[0037] Traditional linear ultraviolet sterilization devices only allow packaging cans to pass through the sterilization zone in a single, straight line, limiting the sterilization time to the device length. This device, however, employs a flexible chain conveyor system (4) with a circular conveyor design, enabling the packaging cans to circulate back and forth within the sterilization zone. Please refer to [link / details] for further information. Figure 1-6 As shown, this utility model is an ultraviolet sterilization device for packaging cans, including a frame 1, an outer cover 2 mounted on the frame 1, and several rows of ultraviolet lamps 3 installed inside the outer cover 2. A flexible chain conveyor 4 is mounted on the frame 1. A horizontal partition 5 is fixed on the frame 1. Guide rails 6 are fixed on the horizontal partition 5, surrounding the inner and outer sides of the annular flexible chain conveyor 4. Under the premise of achieving the same sterilization time, the annular conveyor design can significantly shorten the overall length of the device, saving valuable production space, and is especially suitable for packaging production line transformation projects with limited space. If the length of the production site is limited and the device cannot be extended, the time that the packaging cans receive ultraviolet irradiation can be extended by increasing the reciprocating motion of the packaging cans on the annular conveyor belt, thereby improving the sterilization effect and ensuring the hygiene and safety of the packaging cans.
[0038] The horizontal partition 5 is further equipped with two rows of support devices 7 for supporting the flexible chain conveyor 4. Each support device 7 includes a fixed column 71 fixed to the horizontal partition 5. A U-shaped plate 72 is fixed to the upper end of each fixed column 71. Idler rollers 73 are fixed to the side walls of the U-shaped plate 72, providing uniform support for the flexible chain conveyor, effectively reducing friction and wear during operation, extending the chain's service life, reducing noise, and improving the stability of equipment operation. The coordinated operation of the flexible chain conveyor 4, guide rails 6, and support devices 7 constructs a highly efficient and stable packaging can conveying system. The annular flexible chain design of the flexible chain conveyor 4 enables continuous cyclic conveying of packaging cans, offering higher conveying efficiency and smoother operation compared to reciprocating or intermittent conveying methods.
[0039] The guide rail 6 includes two rectangular uprights 61 vertically fixed to the horizontal partition 5 and arranged in parallel. An outer guide ring plate 62, surrounding the outer side of the annular flexible chain conveyor 4, is fixed to the upper end of each of the two rectangular uprights 61. A row of L-shaped support plates 63 is fixed to the inner sides of the two rectangular uprights 61 respectively. An inner guide ring plate 64, surrounding the inner side of the annular flexible chain conveyor 4, is fixed to the upper end of each row of L-shaped support plates 63. A feed guide groove 65, inclined downwards towards the flexible chain conveyor 4, is provided on one straight section of one end of the outer guide ring plate 62. A first discharge guide groove 66, inclined downwards outwards, is provided on the arcuate section of the same end of the outer guide ring plate 62, and an arc-shaped fixed guide plate 67 is fixed between the side wall end of the first discharge guide groove 66 adjacent to the feed guide groove 65 and the inner guide ring plate 64. A first window 21, cooperating with the feed guide groove 65, is opened on the side wall of one end of the outer cover 2. The outer cover 2 has a second window 22 on the same end face that cooperates with the first discharge guide trough 66. The guide rail 6, composed of a rectangular upright plate 61, an outer guide ring plate 62, an L-shaped support plate 63, and an inner guide ring plate 64, precisely limits the running trajectory of the packaging cans conveyed on the flexible chain plate, effectively preventing the packaging cans from deviating or tipping over during the conveying process, and ensuring the stability and reliability of the conveying.
[0040] When installed on an automated packaging line, this device connects to a first horizontal conveyor that transports unsterilized packaging cans at the end of the infeed guide trough 65. The first discharge guide trough 66 connects to a second horizontal conveyor that transports packaging cans sterilized by this device. The second horizontal conveyor is perpendicular to the first horizontal conveyor. The packaging cans enter the flexible conveyor chain of the flexible chain conveyor device 4 from the infeed guide trough 65. During the reciprocating motion within the outer casing 2, several rows of ultraviolet lamps 3 sterilize the packaging cans, which are then output from the first discharge guide trough 66. This device increases the sterilization time of the packaging cans compared to existing linear ultraviolet sterilization devices of the same length, or shortens the length of the ultraviolet sterilization device while ensuring the same sterilization efficiency. Specific Implementation Example 2:
[0042] Based on Specific Embodiment 1, the difference in this embodiment is that a second discharge guide trough 68 is provided. The end of the second discharge guide trough 68 is connected to a third horizontal conveyor that transports the packaging cans that have been sterilized by this device. The third horizontal conveyor is arranged in a straight line in the same direction as the first horizontal conveyor to improve the applicability to the installation environment.
[0043] like Figure 6-12As shown, a second discharge guide groove 68, inclined outward and downward, is provided on the opposite side of the straight plate portion at the same end of the outer guide ring plate 62, and a slot channel 69 is opened on the inner wall opposite to the groove opening connected to the outer guide ring plate 62. A third window 23, which mates with the second discharge guide groove 68, is opened on the opposite side wall at the same end of the outer cover 2. A discharge guide 8 is inserted and installed on both the outer guide ring plate 62 and the second discharge guide groove 68. The discharge guide 8 includes a flow guide arc plate 81 at both ends, which are tangentially engaged with the outer wall of the inner guide ring plate 64 and the inner wall of the first discharge guide groove 66 adjacent to the second discharge guide groove 68, respectively. A U-shaped plug 82, which is inserted into the corner connection between the second discharge guide groove 68 and the outer guide ring plate 62, is fixed on the outer wall of the flow guide arc plate 81 at one end of the second discharge guide groove 68. The design of the discharge guide 8 can further guide the packaging cans output from the second discharge guide trough 68, ensuring that the packaging cans can enter the subsequent process accurately and smoothly, avoiding blockage or scattering during the output process, and improving production efficiency.
[0044] The device is equipped with a feed guide trough 65 as an input port, and a first discharge guide trough 66 and a second discharge guide trough 68 as output ports. This design allows the device to be easily integrated with existing packaging production lines, while providing two switchable output ports, enhancing production flexibility.
[0045] To eliminate the need for the second discharge guide trough 68 during the modification, the first discharge guide trough 66 is still used as the output port. A sealing plate 9 is inserted into the slot channel 69, with its inner side flush with the inner wall of the connection point between the sealing plate 9 and the outer guide ring plate 62. The sealing plate 9 allows for easy switching between the first discharge guide trough 66 and the second discharge guide trough 68. This enables the packaging cans to select different output directions according to production needs, facilitating connection to different subsequent packaging processes or equipment, and improving the adaptability and scalability of the production line.
[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A packaging can ultraviolet sterilization device, comprising a frame (1), an outer cover (2) mounted on the frame (1), and a plurality of rows of ultraviolet lamps (3) mounted inside the outer cover (2), characterized in that: A flexible chain conveyor (4) is installed on the frame (1); a horizontal partition (5) is fixed on the frame (1). The horizontal partition (5) is fixed with guide rails (6) that surround the inner and outer sides of the annular flexible chain plate of the flexible chain plate conveying device (4).
2. The ultraviolet sterilization device for packaging cans according to claim 1, characterized in that, Two rows of support devices (7) for supporting the flexible chain plate on the flexible chain plate conveyor (4) are also fixed on the horizontal partition (5); the support device (7) includes a fixed column (71) fixed on the horizontal partition (5); a U-shaped plate (72) is fixed at the upper end of the fixed column (71); and rollers (73) are fixed on both sides of the U-shaped plate (72).
3. The ultraviolet sterilization device for packaging cans according to claim 1, characterized in that, The guide rail (6) includes two rectangular upright plates (61) vertically fixed and parallel to each other on the horizontal partition (5); an outer guide ring plate (62) surrounding the outer side of the annular flexible chain plate of the flexible chain plate conveying device (4) is fixed at the upper end of the two rectangular upright plates (61); a row of L-shaped support plates (63) is fixed on the opposite inner sides of the two rectangular upright plates (61); an inner guide ring plate (64) surrounding the inner side of the annular flexible chain plate of the flexible chain plate conveying device (4) is fixed at the upper end of the two rows of L-shaped support plates (63); a straight plate portion on one side of the outer guide ring plate (62) is provided for conveying to the flexible chain plate. The feeding device (4) has a feeding guide trough (65) that is inclined downwards; the outer guide ring plate (62) has a first discharge guide trough (66) that is inclined downwards outwards at the same end arc portion, and an arc-shaped fixed guide plate (67) is fixed between the side wall end of the first discharge guide trough (66) adjacent to the feeding guide trough (65) and the inner guide ring plate (64); the outer cover (2) has a first window (21) that cooperates with the feeding guide trough (65) on one end side wall; the outer cover (2) has a second window (22) that cooperates with the first discharge guide trough (66) on the same end face.
4. The ultraviolet sterilization device for packaging cans according to claim 3, characterized in that, The outer guide ring plate (62) has a second discharge guide groove (68) that is inclined downward on the opposite side of the straight plate at the same end, and a slot channel (69) is opened on the inner wall at the slot that connects to the outer guide ring plate (62); the outer cover (2) has a third window (23) that cooperates with the second discharge guide groove (68) on the opposite side wall at the same end.
5. The ultraviolet sterilization device for packaging cans according to claim 4, characterized in that, The outer guide ring plate (62) and the second discharge guide groove (68) are both connected to a discharge guide (8); the discharge guide (8) includes a flow guide arc plate (81) with both ends tangentially engaged with the outer wall of the inner guide ring plate (64) and the inner wall of the first discharge guide groove (66) adjacent to the second discharge guide groove (68); the outer wall of the flow guide arc plate (81) at one end of the second discharge guide groove (68) is fixed with a U-shaped plug (82) that is inserted into the corner connection between the second discharge guide groove (68) and the outer guide ring plate (62).
6. The ultraviolet sterilization device for packaging cans according to claim 4, characterized in that, A closed insert plate (9) is inserted into the slot channel (69), and the inner side of the closed insert plate (9) is flush with the inner wall of the connection between the outer guide ring plate (62).