Multi-row chain drive type automatic circulating curing chamber

Abstract

The application provides a multi-column chain transmission type automatic circulating curing chamber. The curing chamber comprises an outer shell, a heating pipeline arranged at the bottom of the outer shell, an opening and closing door arranged at one side of the outer shell, and a conveying assembly arranged in the outer shell. The conveying assembly comprises a transmission system and a material hanging system. The transmission system comprises a transmission wheel set, a transmission chain and a tension sprocket. The transmission wheel set comprises a transmission gear, a transmission sprocket and a linkage shaft. The transmission gear is connected with the transmission through the linkage shaft. The material hanging system is arranged on the transmission system and can move along the transmission system to drive the material to circulate. The transmission system and the material hanging system arranged in the outer shell can make the material in the curing chamber circulate. The material can be circulated to the required position or transported to the opening and closing door for taking out. The discharging is more convenient, the heating is more balanced, and the quality accidents caused by the temperature difference of various positions in the chamber are effectively avoided.

Description

Technical Field

[0001] This application relates to the field of curing processing technology for multi-layer composite flexible plastic packaging products, specifically to a multi-row chain-driven automatic circulating curing chamber. Background Technology

[0002] Multilayer composite products in flexible plastic packaging refer to products made by bonding multiple layers of plastic films with different properties together using adhesives and lamination equipment to ultimately form bags or rolls of film. Because the multilayer composite material combines the advantages of various plastic films, it is widely used in flexible plastic packaging. When processing films with different properties using lamination equipment, the adhesives used are generally two-component polyurethane adhesives. One component is called an "isocyanate prepolymer," and the other is called a "polyhydroxy compound." After the two components are mixed, a cross-linking reaction occurs under certain temperature and time conditions, eventually forming a cured product that acts as an adhesive. The facility that provides the reaction temperature and time conditions for the laminated semi-finished roll film (containing the two-component adhesive) is usually called a "curing chamber," and this process is also commonly referred to as the "curing process" of the two-component adhesive.

[0003] Currently, the most commonly used curing chamber type in the industry is the "double-layer horizontal sliding rail curing chamber". The basic characteristics of this curing chamber are: First, the curing chamber has heating pipes to provide the relatively stable temperature conditions required for the cross-linking reaction of the two-component adhesive during the curing process; Second, the curing chamber has parallel sliding rails on both sides with the same height, through which the material threading shaft passes through the core of the material roll to be cured, and the material roll is placed horizontally between the two sliding rails by the loading trolley for curing; Third, the double-layer horizontal sliding rail curing chamber is usually designed with two doors, front and back, namely the inlet door and the outlet door. Under normal circumstances, the material roll to be cured will enter through the inlet door and exit through the outlet door.

[0004] While the existing double-layer horizontal sliding rail curing chamber can achieve basic temperature control curing functions, it still has certain defects and drawbacks compared to ideal curing process control conditions, mainly in the following two aspects: First, in the existing technology, the heating pipes of the double-layer horizontal sliding rail curing chamber are usually located at the bottom. This creates a temperature gradient that gradually decreases from low to high within the curing chamber, with the bottom temperature always being relatively high and the top temperature relatively low. As a result, the heating temperature of the upper and lower layers of the curing material rolls is not actually consistent, and equal and balanced heating cannot be achieved. Therefore, it is very easy to cause some quality accidents in product curing.

[0005] Secondly, in the existing double-layer horizontal sliding rail curing chamber, the material rolls being cured generally enter through the feed door and exit through the discharge door. However, in terms of the actual curing process, the curing time required for products with different composite strength requirements is often different. That is, the material rolls do not always follow the "first-in, first-out" principle when exiting the chamber. Therefore, for materials that require "first-in, last-out" or "last-in, first-out", a large amount of material often needs to be moved around when exiting, which is very inconvenient.

[0006] Therefore, existing technologies need further improvement and enhancement. Utility Model Content

[0007] This application provides a multi-row chain-driven automatic circulating curing chamber to solve the problems of uneven heating, inconvenient discharge, and narrow application range of material rolls in the curing chamber in the prior art.

[0008] The technical solution adopted in this application is as follows: This application provides a multi-row chain-driven automatic circulating curing chamber. The curing chamber includes an outer shell, a heating pipe located at the bottom of the outer shell, an opening and closing door located on one side of the outer shell, and a transport assembly located inside the outer shell. The transport assembly includes a transmission system and a material hanging system. The transmission system includes a transmission wheel set, a transmission chain, and a tension sprocket. The transmission wheel set includes a transmission gear, a transmission sprocket, and a linkage shaft. The transmission gear and the transmission sprocket are connected through the linkage shaft. The material hanging system is located in the transmission system and can move along the transmission system to drive the material circulation.

[0009] In a preferred embodiment of this application, the transmission chain is disposed on both sides of the interior of the outer shell, and the material hanging system is disposed between the transmission chain, with the transmission chain on one side connected end to end in an M-shape.

[0010] In a preferred embodiment of this application, the transmission sprocket is arranged along the transmission chain, and the tensioning sprocket is disposed above the transmission chain and in contact with the transmission chain.

[0011] In a preferred embodiment of this application, the curing chamber further includes a power system, which includes a servo motor and a synchronous gear. The servo motor is positioned above the transmission chain and connected to the synchronous gear. The synchronous gear meshes with a transmission gear located near the synchronous gear.

[0012] In a preferred embodiment of this application, the power system further includes a constant velocity universal coupling, and the synchronous gear includes a driving gear and a driven gear. The driving gear is connected to a servo motor, and the driven gear is connected to the driving gear through the constant velocity universal coupling. The two are arranged in parallel.

[0013] In a preferred embodiment of this application, the material hanging system includes a material threading shaft, a connecting block, a pin, a locking ring, a bushing, a connecting rod, and a material hanging hook. The connecting block is connected to the transmission chain via the pin, and the material hanging hook is connected to the connecting rod via the bushing. The connecting rod is disposed between the transmission chains.

[0014] In a preferred embodiment of this application, a locking ring is provided on the surface of the connecting rod, and the connecting block is connected to the connecting rod through the locking ring.

[0015] In a preferred embodiment of this application, the material threading shaft is hung on the material hook, and the surface of the material threading shaft is threaded with the cured roll film.

[0016] In a preferred embodiment of this application, the curing chamber also includes a control panel, which is located on one side of the outer casing door and connected to the power system.

[0017] In a preferred embodiment of this application, the control panel includes a servo controller, a PLC programmable logic controller, a PID temperature controller, and an HMI human-machine interface control screen.

[0018] Due to the adoption of the above technical solution, the technical effects achieved by this application are as follows: This application provides a multi-row chain-driven automatic circulating curing chamber. By using only one opening and closing door, it not only reduces the cost of the opening and closing door compared to traditional curing chambers, but also allows the material inside the curing chamber to circulate through a circulating transmission system and a material hanging system. Material can be circulated to the required location or transported to the opening and closing door for retrieval, thus fulfilling various practical needs such as "first-in, last-out" or "last-in, first-out," increasing its applicability and facilitating material discharge. The double-row wheel structure of the transmission wheel set enables the conversion from gear transmission to chain transmission, which is convenient and simple in structure. Furthermore, by setting up a transmission system that drives the material circulation, compared to traditional slide rail curing chambers, this application's solution allows the material hanging in the hanging system to circulate internally. This ensures that each roll of material being cured passes through all temperature points within the curing chamber, resulting in more even heating and effectively avoiding quality issues related to product curing caused by temperature differences at various points within the chamber. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain this application and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 A schematic diagram of the overall structure of a multi-row chain-driven automatic circulating curing chamber provided in this application; Figure 2 A schematic diagram of a material hanging system for a multi-row chain-driven automatic circulating curing chamber provided in this application; Figure 3 This application provides a schematic diagram of the partial configuration structure of the transmission wheel assembly and synchronous gears of a multi-row chain-driven automatic circulating curing chamber.

[0020] Figure label: 10. Outer casing; 11. Heating piping; 12. Doors; 13. Control panel; 14. Materials; 20 Transport component; 21 Drive wheel assembly; 211 Drive gear; 212 Drive sprocket; 213 Linkage shaft; 22 Drive chain; 23 Tension sprocket; 24 Material threading shaft; 25 Connecting block; 26 Pin; 27 Locking ring; 28 Bushing; 29 Connecting rod; 291 Material hook; 30 Power system; 31 Servo motor; 32 Synchronous gear; 33 Constant velocity universal coupling. Detailed Implementation

[0021] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0023] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element 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 application.

[0024] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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 this application. 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 can be combined in any suitable manner in one or more embodiments or examples.

[0026] like Figures 1 to 3 As shown, this application provides a multi-row chain-driven automatic circulating curing chamber. The curing chamber includes an outer shell 10, a heating pipe 11 disposed at the bottom of the outer shell 10, an opening and closing door 12 disposed on one side of the outer shell 10, and a transport assembly 20 disposed inside the outer shell 10. The transport assembly 20 includes a transmission system and a material hanging system. The transmission system includes a transmission wheel set 21, a transmission chain 22, and a tension sprocket 23. The transmission wheel set 21 includes a transmission gear 211, a transmission sprocket 212, and a linkage shaft 213. The transmission gear 211 and the transmission sprocket 212 are connected through the linkage shaft 213. The material hanging system is disposed in the transmission system and can move along the transmission system to drive the material 14 to circulate.

[0027] As can be seen in the figure, the surface structure of the outer shell 10 presents a cube-like appearance, which not only saves costs, but also provides sufficient internal capacity and reduces the external footprint.

[0028] In a preferred embodiment of this application, the transmission chain 22 is disposed on both sides inside the outer casing 10, and the material hanging system is disposed between the transmission chains 22, with the transmission chains 22 on one side connected end to end in an M-shape.

[0029] like Figure 1 As shown, the drive chains 22 are distributed near the interior of both sides of the outer shell 10. Taking one side of the drive chain 22 as an example, the drive chains 22 form an M-shaped structure, which allows the drive chains 22 to have a height difference, thus facilitating the material hanging system to circulate along the M-shaped structure. Since the heating pipe 11 is set in the inner bottom wall of the outer shell 10, the material 14 being hung can move along the drive chain 22, so that the material 14 at the higher position can also be heated, while the material 14 at the lower position will not be heated for too long, so that the material 14 can be heated more evenly.

[0030] Furthermore, the transmission sprocket 21 is arranged along the transmission chain 22, and the tension sprocket 23 is positioned above the transmission chain 22 and contacts the transmission chain 22.

[0031] Specifically, such as Figure 1 As shown, most of the transmission sprockets 21 are distributed at the inner corners of the M-shaped structure formed by the transmission chain 22 to facilitate driving the transmission chain 22. A portion of the transmission sprockets 21 are located in the upper half of the transmission chain 22. Since the upper half of the transmission chain 22 has a long horizontal section, in order to avoid the chain from drooping and to improve the transmission effect, multiple transmission sprockets 21 are horizontally arranged in the upper half for transmission.

[0032] In a preferred embodiment, such as Figure 1 As shown, the curing chamber also includes a power system 30, which includes a servo motor 31 and a synchronous gear 32. The servo motor 31 is positioned above the transmission chain 22 and connected to the synchronous gear 32. The synchronous gear 32 meshes with a transmission gear 211 located near the synchronous gear 32. The synchronous gear 32 drives the transmission gear 211 to rotate. With the connection of the linkage shaft 213, the transmission gear 211 and the transmission sprocket 212 rotate synchronously, causing the transmission sprocket 212 to engage with the transmission chain 22 for chain drive.

[0033] It is understandable that, such as Figure 3 As shown, this application sets the transmission wheel group 21 as a double-row wheel structure that rotates synchronously from left to right, so as to convert the power transmitted by the servo motor 31 through gear transmission into the power of the chain transmission to be used later. The structure is simple and easy to operate, and the cost is reduced while achieving the actual effect.

[0034] The power system 30 also includes a constant velocity universal coupling 33, and the synchronous gear 32 includes a driving gear and a driven gear. The driving gear is connected to the servo motor 31, and the driven gear is connected to the driving gear through the constant velocity universal coupling 33. The two are arranged in parallel.

[0035] Understandably, the servo motor 31 can provide power output to the transmission system, thereby driving the transmission gear 211 to move through the synchronous gear 32, which in turn drives the transmission sprocket 21 to move, which in turn drives the transmission chain 22 to move, thereby driving the material hanging system to move. The synchronous gear 32 closer to the servo motor 31 is the driving gear for power output, and the synchronous gear 32 farther away from the servo motor 31 is the driven gear that is synchronized. The driving gear and the driven gear are a pair of gears with the same size, number of teeth and module, and the driving gear and the driven gear are connected by a constant velocity universal coupling 33 to ensure that the frequency of rotation of the synchronous gears 32 on both sides of the servo motor 31 is completely consistent.

[0036] Similarly, the drive sprocket 21 and the tension sprocket 23 are both identical sprockets of the same size and can mesh smoothly with the drive chain 22. The two drive gears 211 that mesh with the synchronous gear 32 directly drive the operation of the entire transmission system. The drive gears 211 and the tension sprocket 23 are used to ensure that the entire drive chain 22 on both sides of the curing chamber is always kept in a stable tension state, avoiding faults such as tooth skipping or tooth slippage that are prone to occur during chain drive.

[0037] In a preferred embodiment of this application, the material hanging system includes a material threading shaft 24, a connecting block 25, a pin 26, a locking ring 27, a bushing 28, a connecting rod 29, and a material hanging hook 291. The connecting block 25 is connected to the transmission chain 22 via the pin 26, and the material hanging hook 291 is connected to the connecting rod 29 via the bushing 28. The connecting rod 29 is disposed between the transmission chains 22.

[0038] Furthermore, such as Figure 2 As shown, a locking ring 27 is provided on the surface of the connecting rod 29. The connecting block 25 is fixed to the inside of the transmission chain 22 by the pin 26. The locking ring 27 on the connecting block 25 is used to fix the connecting rod 29. The material hook 291 on the connecting rod 29 is fixed to the connecting rod 29 by the bushing 28. When the material roll needs to enter the curing chamber, the material threading shaft 24 is passed through the core of the material roll to be cured, and the material roll is placed horizontally on the material hooks 291 on both sides by the loading car for curing.

[0039] Each link of the transmission chain can be connected via a pin 26. Where a "connecting block 25" is needed, the pin 26 is designed to first pass through the hole in the connecting block 25, and then pass normally through the chain block, thus connecting the connecting block 25 and the chain together. The structure is simple and the operation is convenient. Regarding the structure of the locking ring 27, as... Figure 1 and Figure 2 As shown, it can adopt a U-shaped ring structure, with both ends locked by a threaded structure to ensure the reliability of use; furthermore, the bushing 28 serves as the connection medium between the hook 291 and the connecting rod 29, and its own structure is designed to match the diameter of the connecting rod 29 to ensure the reliability of the positioning of the hook 291.

[0040] In practical use, the opening and closing door 12 is opened, and the material roll to be cured is hung on the hanging hook 291 and evenly spaced. It is driven into the outer shell 10 of the curing chamber by the transmission chain 22 for curing. The design uses a "multi-row" chain drive method instead of a "multi-row" chain drive method. Compared with the "multi-row" chain, the "multi-row" chain has more sections that can use the gravity of the material roll to achieve the self-tensioning effect of the transmission chain. Therefore, it can better avoid the failures such as "tooth skipping" or "tooth slippage" that may occur in the transmission chain system during operation.

[0041] As a preferred embodiment of this application, such as Figure 1 As shown, the curing chamber also includes a control panel 13, which is located on one side of the opening and closing door 12 of the outer casing 10 and connected to the power system 30. The control panel 13 consists of components such as a servo controller, a PLC programmable logic controller, a PID temperature controller, and an HMI human-machine interface control panel. It mainly performs two functions: first, it can control the start and stop, continuous cyclic operation, or automatic cyclic operation at fixed time intervals of the power system 30 through settings; second, it can maintain a constant temperature in the curing chamber as much as possible through PID control (proportional-integral-derivative control).

[0042] Furthermore, the control panel 13 can provide staff with an intelligent operating platform, enabling them to perform operations such as first-in-first-out or first-in-last-out of materials 14 through forward rotation, reverse rotation, and time control. Moreover, the settings of the control panel 13 can make the entire equipment more automated and intelligent, and more convenient to operate.

[0043] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0044] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0045] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A multi-row chain-driven automatic circulating ripening chamber, characterized in that, The curing chamber includes an outer shell, a heating pipe located at the bottom of the outer shell, an opening and closing door located on one side of the outer shell, and a transport assembly located inside the outer shell. The transport assembly includes a transmission system and a material hanging system. The transmission system includes a transmission wheel set, a transmission chain, and a tension sprocket. The transmission wheel set includes a transmission gear, a transmission sprocket, and a linkage shaft. The transmission gear and the transmission sprocket are connected through the linkage shaft. The material hanging system is located within the transmission system and can move along the transmission system to drive the material circulation.

2. The multi-row chain-driven automatic circulating curing chamber as described in claim 1, characterized in that, The drive chain is located on both sides inside the outer shell, and the material hanging system is located between the drive chains. The drive chain on one side is connected end to end in an M-shape.

3. The multi-row chain-driven automatic circulating curing chamber as described in claim 2, characterized in that, The drive sprocket is arranged along the drive chain, and the tension sprocket is positioned above the drive chain and in contact with the drive chain.

4. The multi-row chain-driven automatic circulating curing chamber as described in claim 3, characterized in that, The curing chamber also includes a power system, which includes a servo motor and a synchronous gear. The servo motor is located above the transmission chain and is connected to the synchronous gear. The synchronous gear meshes with the transmission gear located near the synchronous gear.

5. The multi-row chain-driven automatic circulating curing chamber as described in claim 4, characterized in that, The power system also includes a constant velocity universal coupling. The synchronous gear includes a driving gear and a driven gear. The driving gear is connected to the servo motor, and the driven gear is connected to the driving gear through the constant velocity universal coupling. The two are arranged in parallel.

6. The multi-row chain-driven automatic circulating curing chamber as described in claim 5, characterized in that, The material hanging system includes a material threading shaft, a connecting block, a pin, a locking ring, a bushing, a connecting rod, and a material hanging hook. The connecting block is connected to the transmission chain via the pin, and the material hanging hook is connected to the connecting rod via the bushing. The connecting rod is disposed between the transmission chains.

7. The multi-row chain-driven automatic circulating curing chamber as described in claim 6, characterized in that, A locking ring is provided on the surface of the connecting rod, and the connecting block is connected to the connecting rod through the locking ring.

8. The multi-row chain-driven automatic circulating curing chamber as described in claim 7, characterized in that, The material threading shaft is hung on the material hook, and the surface of the material threading shaft is threaded with the cured film.

9. The multi-row chain-driven automatic circulating curing chamber as described in claim 8, characterized in that, The curing chamber also includes a control panel, which is located on one side of the outer shell's opening and closing door and is connected to the power system.

10. The multi-row chain-driven automatic circulating curing chamber as described in claim 9, characterized in that, The control panel includes a servo controller, a PLC programmable logic controller, a PID temperature controller, and an HMI human-machine interface control screen.

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