A uniform coating device for a bag fabric antibacterial agent

Abstract

The utility model belongs to the field of packing bag production technology, concretely relates to a kind of packing bag fabric antibacterial agent's uniform coating device, including conveying frame, the one end of conveying frame top is provided with heating frame, the other end of conveying frame top is provided with coating frame, the side of conveying frame is provided with driving assembly.The utility model is through the setting of driving assembly, vice drive roll and conveying frame, can realize the stable efficient operation of packing bag fabric in conveying process, driving assembly provides stable reliable power output, ensures that conveying belt is continuously uniformly driven, vice drive roll and main drive roll synergistic effect, effectively enhance the tension of conveying belt and operating stability, prevent the deviation or skid phenomenon of fabric in conveying process, conveying frame as overall support structure, provide solid work platform for fabric conveying, to ensure that fabric is always in ideal state in antibacterial agent coating process, it is favorable to improve coating uniformity and production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of container bag production technology, specifically relating to a device for uniformly coating antibacterial agents onto container bag fabric. Background Technology

[0002] In the manufacturing of FIBCs (Flexible Intermediate Bulk Containers), antibacterial treatment of the fabric has become a key process for enhancing product added value and meeting the hygiene requirements of specific industries. Traditional antibacterial agent coating methods mostly employ padding or manual scraping. The former involves immersing the entire roll of fabric into an antibacterial liquid tank, which, while ensuring saturation, leads to excessive absorption of the antibacterial agent, resulting in significant waste. Furthermore, the subsequent drying process consumes a large amount of energy, and the antibacterial components may migrate or decompose at high temperatures, affecting their effectiveness. The latter relies heavily on operator experience, making it difficult to maintain a constant coating speed and pressure, easily leading to uneven coating thickness, horizontal streaks, or droplet splashing, resulting in localized loss of antibacterial properties and poor overall quality stability. In addition, existing equipment often separates the preheating, coating, and curing stages, resulting in poor process flow. When the fabric is transferred between different stations, tension changes can easily cause wrinkles, further compromising the uniformity of the coating. Therefore, we propose a device for uniformly coating antibacterial agents onto FIBC fabrics. Utility Model Content

[0003] The purpose of this invention is to provide a uniform coating device for antibacterial agents on FIBC fabrics, which can solve the problems in related technologies such as replacing the padding process to eliminate raw material waste, precision mechanical coating to eliminate unevenness, automated assembly line operation to avoid fabric wrinkles, and achieving efficient and uniform antibacterial treatment.

[0004] The specific technical solution adopted by this utility model is as follows: A uniform coating device for antibacterial agent on bulk bag fabric includes a conveying frame, a heating frame at one end of the top of the conveying frame, a coating frame at the other end of the top of the conveying frame, a controller body at the middle of one side of the conveying frame, and a drive assembly at one side of the conveying frame. The drive assembly includes a motor housing located on one side of the conveyor frame. A servo motor is installed inside the motor housing. A transmission rod is splined to the output end of the servo motor. The surface of the transmission rod extends through and is connected to one side of the conveyor frame. A main drive roller is fixedly connected to one side of the transmission rod. A conveyor belt is rotatably connected to the surface of the main drive roller.

[0005] The main drive roller is rotatably connected to one end inside the conveying frame, and the auxiliary drive roller is rotatably connected to one end inside the conveying frame.

[0006] The conveyor belt is disposed inside the conveyor frame, and one end of the conveyor belt is rotatably connected to the surface of the auxiliary drive roller.

[0007] The heating frame has a heating groove at its inner top, and a heating block is installed inside the heating groove. This heating block plays a crucial role in precisely preheating and modifying the fabric surface. When the FIBC fabric passes through the heating frame before coating, the heating block releases stable and uniform heat, directly acting on the fabric surface. This process not only effectively evaporates any moisture and water molecules that may be adsorbed between the fabric fibers, ensuring a dry and clean coating substrate and preventing moisture from diluting the antibacterial agent or hindering its adhesion, but more importantly, the heat activates the molecular chains on the fabric surface, significantly increasing its surface energy and temperature. This effectively reduces the surface tension of the subsequent liquid antibacterial agent, greatly enhancing its spreading ability and penetration effect on the fabric. This preheating treatment creates ideal physical conditions for subsequent precision coating, allowing the antibacterial agent to cover each fiber more smoothly and evenly, rather than just remaining on the surface. This fundamentally improves the uniformity of the coating, adhesion, and the antibacterial durability of the final product.

[0008] A cooling tank is provided at one end of the top of the coating frame. A cooling fan is fixedly connected inside the cooling tank. The cooling fan plays a crucial role in rapidly cooling and forcibly curing the antibacterial agent freshly coated on the fabric. Once the warm fabric, soaked in liquid antibacterial agent, leaves the coating area, the strong, uniform airflow generated by the cooling fan immediately acts on the entire coating surface. This process quickly removes heat from the coating and fabric fibers, causing the antibacterial agent to cool abruptly from its liquid state. Its physical state changes accordingly, its viscosity increases, and it rapidly gels or partially cures from the surface inwards. This not only instantly locks in the uniform shape of the coating but also prevents the still-flowing antibacterial agent from pooling, dripping, or creating ripples due to subsequent fabric movement or its own gravity, thus preserving the perfectly applied coating effect.

[0009] A through groove is provided at the other end of the top of the coating frame. A hydraulic cylinder body is installed inside the through groove. A coating plate is installed at the bottom of the hydraulic cylinder body. A wedge-shaped groove is provided inside the coating plate.

[0010] A discharge pipe is provided at one end of the top of the coating plate. Five sets of discharge heads are connected through the bottom of the discharge pipe. A feed inlet is connected through the top of the discharge pipe. The top of the feed inlet is located at the other end of the top of the coating frame.

[0011] The bottom of the conveying frame is provided with four sets of support rods along its perimeter, and the bottom of each of the four sets of support rods is fixedly connected to a support plate.

[0012] The technical effects achieved by this utility model are as follows: 1. This utility model, through the arrangement of the drive assembly, auxiliary drive roller, and conveyor frame, enables the stable and efficient operation of the FIBC fabric during the conveying process. The drive assembly provides stable and reliable power output, ensuring continuous and uniform transmission of the conveyor belt. The auxiliary drive roller works in synergy with the main drive roller to effectively enhance the tension and running stability of the conveyor belt, preventing the fabric from shifting or slipping during the conveying process. The conveyor frame, as an overall support structure, provides a stable working platform for fabric conveying, thereby ensuring that the fabric is always in an ideal state during the antibacterial agent coating process, which is conducive to improving coating uniformity and production efficiency.

[0013] 2. This utility model, through the arrangement of a heating frame, heating plate, hydraulic cylinder body, coating plate, discharge head, and cooling fan, enables efficient and continuous processing of antibacterial agent coating and curing. The heating plate can preheat the fabric evenly, effectively removing moisture and enhancing its surface activity, allowing the antibacterial agent to better penetrate and adhere in the subsequent coating process; the coating plate driven by the hydraulic cylinder body can apply stable and uniform pressure, and with multiple discharge heads, ensures that the antibacterial agent is accurately and evenly spread on the fabric surface at a constant flow rate, eliminating uneven coating; after coating, the cooling fan can quickly cool the fabric, promoting rapid setting of the antibacterial agent and penetration into the fiber interior, thereby significantly optimizing the overall processing efficiency and the antibacterial durability of the final product while improving the uniformity and adhesion of the coating. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the drive component structure of this utility model; Figure 4 This is a schematic diagram of the heating tank and heating block of this utility model; Figure 5 This is a schematic diagram of the internal structure of the coating frame of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 1. Conveyor frame; 2. Heating frame; 3. Coating frame; 4. Controller body; 5. Drive assembly; 501. Motor box; 502. Servo motor; 503. Transmission rod; 504. Main drive roller; 505. Conveyor belt; 6. Secondary drive roller; 7. Support rod; 8. Heating tank; 9. Heating block; 10. Cooling fan; 11. Hydraulic cylinder body; 12. Coating plate; 13. Discharge pipe; 14. Discharge head; 15. Feed inlet. Detailed Implementation

[0016] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0017] like Figure 1-5 As shown, a uniform coating device for antibacterial agent on container bag fabric includes a conveying frame 1, a heating frame 2 at one end of the top of the conveying frame 1, a coating frame 3 at the other end of the top of the conveying frame 1, a controller body 4 in the middle of one side of the conveying frame 1, the input end of the controller body 4 is connected to an external power supply via a power cord, and the output end is also connected to a servo motor 502, a hydraulic cylinder body 11, a cooling fan 10 and a heating block 9 via a power cord. A drive assembly 5 is provided on one side of the conveying frame 1. The drive assembly 5 includes a motor housing 501 disposed on one side of the conveyor frame 1. A servo motor 502 is disposed inside the motor housing 501. A transmission rod 503 is splinedly connected to the output end of the servo motor 502. The surface of the transmission rod 503 is connected through to one side of the inside of the conveyor frame 1. A main drive roller 504 is fixedly connected to one side of the transmission rod 503. A conveyor belt 505 is rotatably connected to the surface of the main drive roller 504.

[0018] The main drive roller 504 is rotatably connected to one end inside the conveyor frame 1, and the auxiliary drive roller 6 is rotatably connected to one end inside the conveyor frame 1.

[0019] The conveyor belt 505 is disposed inside the conveyor frame 1, and one end of the conveyor belt 505 is rotatably connected to the surface of the auxiliary drive roller 6.

[0020] A heating groove 8 is provided on the inner top of the heating frame 2, and a heating block 9 is provided inside the heating groove 8.

[0021] A cooling trough is provided at one end of the top of the coating frame 3, and a cooling fan 10 is fixedly connected inside the cooling trough.

[0022] A through groove is provided at the other end of the top of the coating frame 3. A hydraulic cylinder body 11 is provided inside the through groove. A coating plate 12 is provided at the bottom of the hydraulic cylinder body 11. A wedge-shaped groove is provided inside the coating plate 12. The length of the wedge-shaped groove is less than the length of the coating plate, so that the ports on both sides of the wedge-shaped groove are blocked. This design can prevent excess liquid antibacterial agent from flowing onto the surface of the conveyor belt 505 during the coating process.

[0023] A discharge pipe 13 is provided at one end of the top of the coating plate 12. Five sets of discharge heads 14 are connected through the bottom of the discharge pipe 13. A feed inlet 15 is connected through the top of the discharge pipe 13. The top of the feed inlet 15 is located at the other end of the top of the coating frame 3. The top of the feed inlet 15 is connected to external pipes and peripheral equipment.

[0024] Four sets of support rods 7 are arranged around the bottom perimeter of the conveyor frame 1. Each set of support rods 7 has a support plate fixedly connected to its bottom. These support rods 7 provide crucial structural stability and operational reliability for the entire coating device. As the load-bearing foundation of the entire equipment, these support rods 7 firmly support the total weight of the conveyor frame 1, heating frame 2, coating frame 3, and all internal moving parts and functional modules, ensuring that the equipment will not deform or shift due to its own weight or vibration during operation. Simultaneously, the support plates at the bottom increase the contact area with the ground.

[0025] In summary; By configuring the drive assembly 5, the auxiliary drive roller 6, and the conveyor frame 1, the fabric of the container bag can be transported smoothly and efficiently. The drive assembly 5 provides a stable and reliable power output, ensuring that the conveyor belt 505 is continuously and evenly driven. The auxiliary drive roller 6 works in conjunction with the main drive roller 504 to effectively enhance the tension and running stability of the conveyor belt 505, preventing the fabric from shifting or slipping during transport. The conveyor frame 1, as an overall support structure, provides a stable working platform for fabric transport, thereby ensuring that the fabric is always in an ideal state during the antibacterial agent coating process, which is conducive to improving coating uniformity and production efficiency.

[0026] The arrangement of the heating frame 2, heating block 9, hydraulic cylinder body 11, coating plate 12, discharge head 14, and cooling fan 10 enables efficient and continuous processing of antibacterial agent coating and curing. The heating block 9 preheats the fabric evenly, effectively removing moisture and enhancing its surface activity, allowing the antibacterial agent to better penetrate and adhere in subsequent coating processes. The coating plate 12, driven by the hydraulic cylinder body 11, applies stable and uniform pressure, which, together with multiple discharge heads 14, ensures that the antibacterial agent is accurately and evenly spread on the fabric surface at a constant flow rate, eliminating uneven coating. After coating, the cooling fan 10 quickly cools the fabric, promoting rapid setting and penetration of the antibacterial agent into the fibers. This significantly improves the uniformity and adhesion of the coating while optimizing the overall processing efficiency and the antibacterial durability of the final product.

[0027] The operating steps of this device are as follows: First, the operator lays the fabric of the container bag flat at the starting end of the conveyor. The system is started via the controller body 4, and the servo motor 502 in the drive assembly 5 begins precise operation. Through the transmission rod 503, it drives the main drive roller 504 to rotate, thereby causing the conveyor belt 505 to perform a uniform and stable cyclical motion, smoothly feeding the fabric into the processing area. Subsequently, the fabric first enters below the heating frame 2. Inside the heating frame 2, the pre-set heating block 9 begins to work, generating uniform and controllable heat to comprehensively preheat the fabric passing beneath it. This evaporates any residual moisture on the fabric surface and activates the molecular activity of its fiber surface, preparing for subsequent antibacterial agent coating. After preheating, the conveyor belt 505 precisely feeds the dry, warm fabric directly below the coating frame 3. At this time, the hydraulic cylinder body 11 at the top of the coating frame 3 begins to move, pushing the internal wedge-shaped coating plate 12 downwards until its bottom surface maintains a uniform pressure state with the fabric surface—contacting but not excessively damaging. Meanwhile, liquid antibacterial agent is pumped in through the top inlet 15, flows through the outlet pipe 13, and finally flows out precisely from multiple evenly distributed outlet heads 14 at the bottom, soaking into the gap between the coating plate 12 and the fabric. Driven by the forward movement of the conveyor belt 505, the antibacterial agent is evenly and smoothly coated on the entire surface of the fabric by the scraping and guiding action of the wedge-shaped coating plate 12. Finally, the fabric with the antibacterial agent coating completed is immediately conveyed to the cooling area. Two sets of cooling fans 10 in the cooling tank are activated to forcibly and evenly cool the still warm wet coating. This rapid cooling process can promote the rapid setting of the antibacterial agent and its initial solidification in the fabric fibers. Finally, the cooled and set, antibacterial treated FIBC fabric is output from the end of the device, awaiting subsequent winding or further processing.

[0028] The working principle of this device is as follows: After the device is started, the fabric first enters the heating frame 2 under the traction of the conveyor belt 505. The heating block 9 inside the frame generates uniform heat to preheat the fabric. This process not only removes surface moisture, but more importantly, it activates fiber molecules and increases surface energy, thereby significantly enhancing the spreadability and wetting properties of the subsequent antibacterial agent, creating an ideal base for uniform coating. Subsequently, the preheated fabric enters the coating area. The hydraulic cylinder body 11 drives the wedge-shaped coating plate 12 to press down steadily, forming a constant and tiny gap between it and the fabric surface. At the same time, the antibacterial agent is precisely and evenly distributed by multiple discharge heads 14 through the inlet 15 and the outlet pipe 13. As the fabric moves along the conveyor belt 505, the antibacterial agent, under the combined action of viscosity and mechanical pressure, is squeezed into a uniform, uninterrupted liquid film by the scraping of the coating plate 12 and the guidance of the wedge structure, thus achieving coating uniformity. Finally, the coated fabric immediately enters the cooling zone, where the forced convection generated by the cooling fan 10 quickly removes the heat from the coating, causing it to solidify and solidify rapidly. This step not only prevents the coating from losing uniformity due to liquid flow but also firmly locks the effective components of the antibacterial agent inside the fiber, ensuring its long-lasting and stable antibacterial performance. Ultimately, this efficiently produces container bag fabric with a high-quality functional coating.

[0029] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A device for uniformly coating antibacterial agents onto bulk bag fabric, characterized in that: The conveyor frame (1) includes a heating frame (2) at one end of the top of the conveyor frame (1), a coating frame (3) at the other end of the top of the conveyor frame (1), a controller body (4) at the middle of one side of the conveyor frame (1), and a drive assembly (5) at one side of the conveyor frame (1). The drive assembly (5) includes a motor housing (501) disposed on one side of the conveyor frame (1). A servo motor (502) is disposed inside the motor housing (501). A transmission rod (503) is splinedly connected to the output end of the servo motor (502). The surface of the transmission rod (503) is connected through to one side of the inside of the conveyor frame (1). A main drive roller (504) is fixedly connected to one side of the transmission rod (503). A conveyor belt (505) is rotatably connected to the surface of the main drive roller (504).

2. The uniform coating device for antibacterial agent on container bag fabric according to claim 1, characterized in that: The main drive roller (504) is rotatably connected to one end inside the conveying frame (1), and the auxiliary drive roller (6) is rotatably connected to one end inside the conveying frame (1).

3. The uniform coating device for antibacterial agent on container bag fabric according to claim 2, characterized in that: The conveyor belt (505) is disposed inside the conveyor frame (1), and one end of the conveyor belt (505) is rotatably connected to the surface of the auxiliary drive roller (6).

4. The uniform coating device for antibacterial agent on container bag fabric according to claim 1, characterized in that: The heating frame (2) has a heating groove (8) on its inner top, and a heating block (9) is provided inside the heating groove (8).

5. The uniform coating device for antibacterial agent on container bag fabric according to claim 1, characterized in that: A cooling groove is provided at one end of the top of the coating frame (3), and a cooling fan (10) is fixedly connected inside the cooling groove.

6. The uniform coating device for antibacterial agent on container bag fabric according to claim 1, characterized in that: The top of the coating frame (3) has a through groove at the other end, and a hydraulic cylinder body (11) is provided inside the through groove. A coating plate (12) is provided at the bottom of the hydraulic cylinder body (11), and a wedge-shaped groove is provided inside the coating plate (12).

7. The uniform coating device for antibacterial agent on container bag fabric according to claim 6, characterized in that: The top end of the coating plate (12) is provided with a discharge pipe (13), the bottom of the discharge pipe (13) is connected to five sets of discharge heads (14), the top of the discharge pipe (13) is connected to a feed inlet (15), and the top of the feed inlet (15) is located at the other end of the top of the coating frame (3).

8. The uniform coating device for antibacterial agent on container bag fabric according to claim 1, characterized in that: The bottom of the conveying frame (1) is provided with four sets of support rods (7) along the periphery, and the bottom of each of the four sets of support rods (7) is fixedly connected with a support plate.

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