Uv liquid treatment line and treatment method

Abstract

This invention discloses a UV chemical treatment line, with a feeding platform and a dispensing platform at both ends of the frame. A feeding device is provided between the feeding and dispensing platforms, and an immersion tank for holding UV chemicals is also provided. The shoe sole material on the feeding device can be immersed in the UV chemicals in the immersion tank. The frame is equipped with a blowing device for conveying low-temperature compressed air. The air inlet of the blowing device is connected to the downstream of an external air compressor, and the air outlet of the blowing device is located at the junction of the immersion tank and the dispensing platform, and the air outlet of the blowing device is aligned with the shoe sole material on the feeding device. The frame is also equipped with an exhaust device for discharging gas from the internal cavity of the frame. This UV chemical treatment line has good processing effect, a simplified and compact processing flow, high processing efficiency, and can reduce the health hazards to workers during the process. This invention also discloses a UV chemical treatment method using this UV chemical treatment line.

Description

Technical Field

[0001] This invention relates to the technical field of shoe sole processing technology, and particularly to a UV chemical treatment line. This invention also relates to a UV chemical treatment method using this UV chemical treatment line. Background Technology

[0002] Typical athletic shoe soles are made by bonding an EVA (ethylene-vinyl acetate copolymer) based foam midsole and an RB (rubber) vulcanized outsole with PU (polyurethane) adhesive. EVA and RB have relatively low polarity, while PU adhesive has high polarity. There is no good affinity between the sole and the PU adhesive; the PU adhesive struggles to form polymer chains with the sole material, and it is also difficult for them to diffuse and entangle, resulting in poor bonding. Furthermore, the EVA-based foam sole is a crystalline polymer, forming a dense layer on the shoe's surface, making it difficult for the adhesive to penetrate.

[0003] For the reasons mentioned above, the industry typically performs surface treatment on EVA foam midsoles or RB vulcanized outsoles first. This process requires the use of UV (photosensitive polymer) solutions as surface treatment agents. Generally, the main components of UV surface treatment agents are: "solid content: 0.8-1.5%, including vinyl acetate resin, methyl methacrylate, acrylic acid, photoinitiator, etc.; solvents: ethyl acetate, toluene, acetone, methyl ethyl ketone, cyclohexanone, dimethyl carbonate, etc." By soaking or brushing the surface treatment agent onto the sole, the sole surface swells, the treatment agent diffuses into the sole interior, and the monomers are evenly dispersed on the sole surface. Then, ultraviolet light is used for irradiation, and the photoinitiator decomposes free radicals, thereby initiating the polymerization, cross-linking, and grafting reactions of monomers such as acrylates. This causes the roughened surface to solidify, forming a dense polar film, thus creating a "bridging" effect between the sole and the PU adhesive.

[0004] Currently, there are two main methods for applying UV chemicals in the shoe sole processing industry:

[0005] One method is purely manual: about 20 pairs of shoe soles are first put into a large mesh bag, then into a 100-liter plastic bucket containing UV surface treatment agent. After soaking for 30 seconds, the shoe soles are taken out and poured into a perforated plastic basket to air dry naturally. This manual processing method has three major drawbacks: (1) It is labor-intensive. The exposed UV solution is highly volatile and has an unpleasant odor, which inevitably causes great harm to the human body; (2) It is wasteful of materials. The plastic bucket contains about 60 liters of surface treatment agent. The irradiation agent will solidify itself when exposed to light or air, forming precipitates, which will affect the treatment effect of the UV irradiation solution. Therefore, the effective time of the UV irradiation solution is no more than 12 hours. Irradiation solution that exceeds the time needs to be put back into the reagent bucket for disposal, which is not only wasteful of materials, but also harmful to the environment; (3) The midsole is left to dry, which cannot guarantee that every part of every shoe is completely dry. Excess solution remains on the surface of the midsole, which will affect the photocuring efficiency in the subsequent UV irradiation process.

[0006] Secondly, automated UV chemical treatment lines are used: Typically, the shoe soles are placed in automated UV chemical treatment equipment. The equipment's conveying, soaking, and drying devices automatically immerse the soles in UV chemicals and then dry them, thus automating the UV chemical treatment process and saving manpower. However, existing UV chemical treatment lines also have the following drawbacks: First, existing UV irradiation chemical treatment lines use hot air or drying devices to blow or dry the solvent on the soaked soles. Since the solvents in the UV chemicals for shoe soles are volatile liquids, high temperatures from hot air or drying ovens cause the solvents to evaporate faster, reducing the amount of UV solvent and increasing the solid content, leading to gelation and affecting the actual treatment effect on the soles. Second, existing UV chemical treatment lines, equipped with drying or hot air devices, also require cooling devices for cooling and temperature reduction. The design of each device is complex, and the process is long, failing to achieve the goal of a simple and efficient process. Third, the faster and more the UV chemicals evaporate, the greater the harm and pollution to human health and the environment, adversely affecting the health of the workers on the treatment line.

[0007] Therefore, how to optimize the process effect of UV chemical treatment line, simplify its process flow, improve its processing efficiency, and at the same time reduce its harm to the health of workers is an important technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0008] The purpose of this invention is to provide a UV chemical treatment line that offers superior treatment results, a streamlined and compact process, high efficiency, and reduced health hazards to workers during the treatment process. Another objective of this invention is to provide a UV chemical treatment method utilizing this UV chemical treatment line.

[0009] To solve the above-mentioned technical problems, the present invention provides a UV chemical treatment line, including a horizontally arranged frame with an inner cavity. One end of the frame is provided with a feeding platform for feeding shoe sole material, and the other end is provided with a taking-out platform for taking out shoe sole material. A feeding device is provided between the feeding platform and the taking-out platform to transport shoe sole material from the feeding platform to the taking-out platform. The frame is also provided with an immersion tank for holding UV chemical solution. The immersion tank is located between the feeding platform and the taking-out platform along the material conveying direction of the feeding device. The shoe sole material on the feeding device can be immersed in the UV chemical solution located in the immersion tank.

[0010] The frame is equipped with an air blowing device capable of conveying low-temperature compressed air. The air inlet of the air blowing device is connected to the downstream of an external air compressor, and the air outlet of the air blowing device is located at the junction of the soaking tank and the material handling platform. The air outlet of the air blowing device is also connected to the shoe sole material on the feeding device.

[0011] The frame is also equipped with an exhaust device that can discharge the gas in the internal cavity of the frame.

[0012] Preferably, the inner cavity of the frame is further provided with a pressing device arranged above the feeding device. The bottom of the pressing device is equidistant from and parallel to the feeding device to form a conveying space that can accommodate the sole material. The movement direction of the bottom of the pressing device in contact with the sole material is consistent with the conveying direction of the sole material.

[0013] Preferably, the soaking tank includes a front downhill section, a soaking section, and a rear uphill section arranged sequentially along the material conveying direction. The depth of the front downhill section increases along the material conveying direction, the depth of the rear uphill section decreases along the material conveying direction, and the depth of the soaking section is constant.

[0014] The feeding device includes a front feeding section arranged in parallel within the front downhill section, a main feeding section arranged in parallel within the soaking section, and a rear feeding section arranged in parallel within the rear uphill section.

[0015] The pressing device includes a front pressing section arranged in parallel above the front feeding section, a main pressing section arranged in parallel above the main feeding section, and a rear pressing section arranged in parallel above the rear feeding section.

[0016] Preferably, the inner cavity of the frame is provided with a drug storage tank and a drug supply tank that are connected sequentially along the UV drug delivery direction. The drug storage tank and the drug supply tank are connected by a replenishment pipe. A control valve is provided on the replenishment pipe. A float assembly that is linked and cooperates with the control valve is provided in the drug storage tank and / or the drug supply tank.

[0017] The bottom of the medicine supply box has a medicine supply pipe that is aligned and connected to the soaking section, and the axis of the medicine supply pipe extends horizontally.

[0018] Preferably, both the bottom of the medicine storage tank and the bottom of the soaking section are provided with a medicine discharge pipe, and the medicine discharge pipe is provided with a medicine discharge valve.

[0019] Preferably, the air blowing device includes an air intake pipe and an air blowing pipe assembly connected sequentially along the conveying direction of the low-temperature compressed air. The air outlet end of the air blowing pipe assembly is aligned with the rear uphill section, and an air duct switch valve is connected between the air intake pipe and the air blowing pipe.

[0020] Preferably, the air blowing pipe assembly includes two air blowing rods, each with a plurality of air blowing holes on its wall. One air blowing rod is located above the rear pressing section, with each air blowing hole of the air blowing rod facing the rear pressing section. The other air blowing rod is located below the rear feeding section, with each air blowing hole of the air blowing rod facing the rear feeding section.

[0021] The two air-blowing rods are connected in parallel downstream of the air-drawing pipe via a three-way valve.

[0022] Preferably, both the feeding device and the pressing device are mesh chain conveyor belt mechanisms, and a motor is installed in the inner cavity of the frame. Both the feeding device and the pressing device are driven by the motor through a chain.

[0023] Preferably, the exhaust device includes two exhaust vents disposed on the top of the frame and a blower corresponding to each exhaust vent, wherein one exhaust vent is positioned above the feeding platform and the other exhaust vent is positioned above the unloading platform.

[0024] This invention also provides a UV chemical treatment method, which uses the UV chemical treatment line described above, and includes the following steps:

[0025] The material feeding process involves feeding the shoe sole material to be processed from the material pick-up station to the feeding device, and then conveying the shoe sole material to the downstream workstation through the feeding device.

[0026] The soaking and feeding device transports the shoe sole material to a soaking tank containing UV solution, immersing the shoe sole material in the UV solution in the soaking tank until the shoe sole material has completed the UV solution soaking treatment.

[0027] The air-drying process involves the feeding device removing the shoe sole material that has undergone UV chemical soaking from the soaking tank and using low-temperature compressed air delivered by the blowing device to air-dry the shoe sole material that has undergone UV chemical soaking.

[0028] The material handling and feeding device delivers the dried shoe sole material to the material handling platform so that workers can take it away.

[0029] Compared to the aforementioned background technology, the UV chemical treatment line provided by this invention, during its operation, involves the material to be treated, shoe sole, being fed from the material handling station to the feeding device. The feeding device then transports the shoe sole to an immersion tank containing UV chemical solution, immersing the shoe sole in the UV chemical solution until the shoe sole has completed the UV chemical treatment. After the UV chemical treatment is completed, the shoe sole is removed from the immersion tank by the conveying device. Then, low-temperature compressed air supplied by the blowing device is used to air-dry the shoe sole that has completed the UV chemical treatment. After air-drying, the shoe sole is transported to the material handling station by the feeding device and taken away by the staff for subsequent downstream processes or centralized storage and transportation. The UV chemical treatment line uses low-temperature compressed air to dry the shoe sole material, eliminating the need for high-temperature drying equipment and its supporting cooling devices. This significantly reduces the number of components in the UV chemical treatment line, simplifies the overall equipment assembly structure and corresponding processing flow, and improves processing efficiency. In addition, because high-temperature drying is not used, the UV chemical does not evaporate quickly, which not only optimizes the treatment effect of the shoe sole material but also avoids the harm to workers and the surrounding environment caused by large-scale chemical evaporation. With the operation of the exhaust device, the evaporating chemical can be quickly discharged, further preventing its harm to the health of workers and ensuring their health.

[0030] In the UV chemical treatment method provided by this invention, the shoe sole material is air-dried by low-temperature compressed air through sequential operation steps, eliminating the need for high-temperature drying and its associated cooling processes. This significantly simplifies the UV chemical treatment process and improves processing efficiency. Furthermore, since high-temperature drying is not used, the UV chemical does not evaporate quickly, which not only optimizes the treatment effect of the shoe sole material but also avoids the harm to workers and the surrounding environment caused by large-scale chemical evaporation, ensuring the health of workers. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a front view of the assembly structure of a UV chemical treatment line provided in a specific embodiment of the present invention;

[0033] Figure 2 for Figure 1 Front view of the mating structure between the central medicine storage box, the medicine supply box, and the soaking tank;

[0034] Figure 3 for Figure 2 Side view;

[0035] Figure 4 for Figure 1 Schematic diagram of the structure of the motor and its components;

[0036] Figure 5 for Figure 1 A schematic diagram of the component assembly structure of the air blowing device.

[0037] in,

[0038] 10-Frame; 101-Inner cavity; 102-Feeding platform; 103-Unloading platform; 104-Exhaust vent;

[0039] 11-feeding device; 111-front feeding section; 112-main feeding section; 113-rear feeding section;

[0040] 12-Soaking tank; 121-Front downhill section; 122-Soaking section; 123-Rear uphill section;

[0041] 13-Pressure pressing device; 131-Front pressure pressing section; 132-Main pressure pressing section; 133-Rear pressure pressing section;

[0042] 14-Medicine storage tank; 141-Medicine supply tank; 142-Medicine replenishment pipe; 143-Control valve; 144-Float assembly; 145-Medicine supply pipe; 146-Medicine discharge pipe; 147-Medicine discharge valve;

[0043] 15-Air intake pipe; 151-Air duct switch valve; 152-Air blowing rod pipe; 153-Three-way valve;

[0044] 16-Motor; 161-Chain; 162-Bearing;

[0045] 17-Top frame; 171-Support component; 172-Pressure roller assembly. Detailed Implementation

[0046] The core of this invention is to provide a UV chemical treatment line, which has good processing effect, a simplified and compact processing flow, high processing efficiency, and can reduce the health hazards to workers during the process; at the same time, it provides a UV chemical treatment method using the UV chemical treatment line.

[0047] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] Please refer to the reference. Figures 1 to 5 .

[0049] In a specific embodiment, the UV chemical treatment line provided by the present invention includes a horizontally arranged frame 10 with an inner cavity 101. One end of the frame 10 is provided with a feeding platform 102 for feeding shoe sole material, and the other end is provided with a taking platform 103 for taking out shoe sole material. A feeding device 11 is provided between the feeding platform 102 and the taking platform 103 to transport shoe sole material from the feeding platform 102 to the taking platform 103. The frame 10 is also provided with an immersion tank 12 for holding UV chemical solution. The immersion tank 12 is located between the feeding platform 102 and the taking platform 103 along the material conveying direction of the feeding device 11. The shoe sole material on the feeding device 11 can be immersed in the UV chemical solution in the immersion tank 12.

[0050] The frame 10 is equipped with an air blowing device that can deliver low-temperature compressed air. The air inlet of the air blowing device is connected to the downstream of an external air compressor, and the air outlet of the air blowing device is located at the junction of the soaking tank 12 and the material handling platform 103. The air outlet of the air blowing device is also connected to the shoe sole material on the feeding device 11.

[0051] The rack 10 is also equipped with an exhaust device that can discharge the gas in the inner cavity 101 of the rack 10.

[0052] During operation, the shoe sole material to be processed is sent from the material receiving platform 103 to the feeding device 11, and then conveyed by the feeding device 11 to the soaking tank 12 containing UV solution. The shoe sole material is immersed in the UV solution in the soaking tank 12 until the shoe sole material has completed the UV solution soaking treatment. After the UV solution soaking treatment is completed, the shoe sole material is taken out from the soaking tank 12 by the conveying device 11. Then, the shoe sole material that has completed the UV solution soaking treatment can be dried by the low temperature compressed air conveyed by the air blowing device. After the shoe sole material is dried, it is conveyed by the feeding device 11 to the material receiving platform 103 and taken away by the staff for subsequent downstream processes or centralized storage and transportation. The UV chemical treatment line uses low-temperature compressed air to dry the shoe sole material, eliminating the need for high-temperature drying equipment and its supporting cooling devices. This significantly reduces the number of components in the UV chemical treatment line, simplifies the overall equipment assembly structure and corresponding processing flow, and improves processing efficiency. In addition, because high-temperature drying is not used, the UV chemical does not evaporate quickly, which not only optimizes the treatment effect of the shoe sole material but also avoids the harm to workers and the surrounding environment caused by large-scale chemical evaporation. With the operation of the exhaust device, the evaporating chemical can be quickly discharged, further preventing its harm to the health of workers and ensuring their health.

[0053] Furthermore, a pressing device 13 is also provided in the inner cavity 101 of the frame 10, positioned above the feeding device 11. The bottom of the pressing device 13 is equidistant from and parallel to the feeding device 11 to form a conveying space capable of accommodating the shoe sole material. The movement direction of the bottom of the pressing device 13 in contact with the shoe sole material is consistent with the conveying direction of the shoe sole material. During the conveying process of the shoe sole material, the bottom of the pressing device 13 can cooperate and move synchronously with the feeding device 11 to form a suitable pressing and limiting effect on the shoe sole material located on the feeding device 11, so as to prevent the shoe sole material from falling off the feeding device 11 or becoming loose or misaligned during the conveying process, thus ensuring the conveying efficiency and stability of the shoe sole material.

[0054] In practical applications, the soaking tank 12 includes a front downhill section 121, a soaking section 122, and a rear uphill section 123 arranged sequentially along the material conveying direction. The depth of the front downhill section 121 increases along the material conveying direction, the depth of the rear uphill section 123 decreases along the material conveying direction, and the depth of the soaking section 122 is constant.

[0055] The feeding device 11 includes a front feeding section 111 arranged in parallel within the front downhill section 121, a main feeding section 112 arranged in parallel within the soaking section 122, and a rear feeding section 113 arranged in parallel within the rear uphill section 123.

[0056] The pressing device 13 includes a front pressing section 131 that is aligned and parallel to the front feeding section 111, a main pressing section 132 that is parallel to the main feeding section 112, and a rear pressing section 133 that is aligned and parallel to the rear feeding section 113.

[0057] The front downhill section 121 and the rear uphill section 123 prevent the UV solution in the soaking section 122 from overflowing. In particular, the inclined arrangement of the rear uphill section 123 allows residual UV solution that flows down when the shoe sole material after UV treatment moves to the rear feeding section 113 to flow back into the soaking section 122, thus avoiding waste and optimizing process costs. Furthermore, arranging the feeding device 11 and the pressing device 13 in a segmented structure that corresponds to and cooperates with the front downhill section 121, the soaking section 122, and the rear uphill section 123 further optimizes the conveying effect of the shoe sole material and the effect of the UV treatment, ensuring the process efficiency of the UV treatment line.

[0058] As can be seen from the attached drawings, both the feeding device 11 and the pressing device 13 are circulating conveying devices, specifically a mesh chain conveyor belt mechanism or a steel plate conveyor belt mechanism. In practical applications, the top conveyor belt of the feeding device 11 moves from the feeding platform 102 to the unloading platform 103, while the bottom conveyor belt of the feeding device 11 moves in the opposite direction to the top conveyor belt; similarly, the bottom conveyor belt of the pressing device 13 moves from the feeding platform 102 to the unloading platform 103, while the top conveyor belt of the pressing device 13 moves in the opposite direction to the bottom conveyor belt.

[0059] Please refer to this carefully. Figure 4 .

[0060] A motor 16 is installed in the inner cavity 101 of the frame 10. The feeding device 11 and the pressing device 13 are both driven by the motor 16 through a chain 161. Generally, to ensure transmission efficiency and stability, bearings 162 adapted to the chain 161 can be arranged at corresponding positions of the feeding device 11 and the pressing device 13. In addition, a top frame 17 can be arranged in the inner cavity 101 of the frame 10 to house the pressing device 13. Support members 171 extending vertically or horizontally can be arranged in the top frame 17. The support members 171 are preferably rod-shaped or square tube-shaped, and the material can be stainless steel or other materials with certain structural strength to ensure reliable installation and stable operation of the pressing device 13.

[0061] Furthermore, if a mesh conveyor belt mechanism is used as the specific application type of the feeding device 11 and the pressing device 13, pressure roller assemblies 172 can be arranged at each bend or structural transition of the mesh conveyor belt mechanism to ensure the efficiency of the component operation and the overall stability of the mechanism, and to avoid phenomena such as component loosening, misalignment or jamming.

[0062] On the other hand, the inner cavity 101 of the frame 10 is provided with a drug storage tank 14 and a drug supply tank 141 connected sequentially along the UV drug delivery direction. The drug storage tank 14 and the drug supply tank 141 are connected by a replenishment pipe 142. A control valve 143 is provided on the replenishment pipe 142. A float assembly 144 that is linked and cooperates with the control valve 143 is provided in the drug storage tank 14 and / or the drug supply tank 141. The bottom of the drug supply tank 141 has a drug supply pipe 145 that is aligned and connected with the soaking section 122. The axis of the drug supply pipe 145 extends in the horizontal direction.

[0063] Generally, the storage tank 14 is located above the supply tank 141 to optimize the flow and delivery of the UV solution. The supply tank 141 is connected to the soaking section 122 via a supply pipe 145, forming a communicating vessel mechanism. This allows for the replenishment of UV solution to the soaking section 122 via the supply tank 141 based on the liquid level. Furthermore, if the UV solution level in the supply tank 141 is low, the supply tank 141 can be replenished via the replenishment pipe 142. In practical applications, float assemblies 144 can be arranged in both the storage tank 14 and the supply tank 141 to achieve real-time monitoring of the liquid levels. The float assemblies 144 can also be linked with the control valve 143 to control its on / off state, allowing for flexible adjustment of the UV solution replenishment and supply according to specific operating conditions.

[0064] Of course, in practical applications, the monitoring of the UV chemical solution level in each chamber and the corresponding linkage of the control valves 143 are not limited to the float assembly 144 and conventional control valve 143 mechanism described above. An electronic level gauge combined with an electrically controlled valve can also be used. Operators can flexibly select and adjust according to actual working conditions. In principle, any mechanism that meets the actual application needs of the UV chemical treatment line is acceptable.

[0065] Based on this, both the bottom of the storage tank 14 and the bottom of the soaking section 122 are equipped with discharge pipes 146, and discharge valves 147 are installed on the discharge pipes 146. Under normal operating conditions, the discharge valves 147 are closed to ensure the relative closure of the chambers such as the storage tank 14 and the soaking section 122, preventing UV chemical leakage. After the equipment is used for the day, or when the equipment needs to be shut down for maintenance or repair, the discharge valves 147 can be opened to quickly discharge the remaining UV chemical in the storage tank 14 and the soaking tank 12 to the outside of the equipment through the corresponding discharge pipes 146, so as to collect, process or recycle the chemical and avoid waste and ineffectiveness of the chemical solution.

[0066] Please refer to this carefully. Figure 5 .

[0067] Specifically, the air blowing device includes an air intake pipe 15 and an air blowing pipe assembly connected sequentially along the conveying direction of the low-temperature compressed air. The air outlet of the air blowing pipe assembly is aligned with the rear uphill section 123, and an air duct switch valve 151 connects the air intake pipe 15 and the air blowing pipe. When the shoe sole material after UV chemical treatment is conveyed by the feeding device 11 to the corresponding position of the rear uphill section 123, the low-temperature compressed air output from the air outlet of the air blowing pipe assembly can quickly dry the shoe sole material located on the rear feeding section 113, ensuring the treatment effect of the shoe sole material; at the same time, the low-temperature compressed air can blow the UV chemical residue adhering to the shoe sole material into the soaking tank 12, so that the residue can flow back to the soaking section 122 under the action of the inclined structure of the rear uphill section 123, avoiding waste of chemical solution and optimizing process costs.

[0068] More specifically, the air blowing assembly includes two air blowing pipes 152, each with several air blowing holes on its wall. One air blowing pipe 152 is located above the rear pressing section 133, with its air blowing holes facing the rear pressing section 133. The other air blowing pipe 152 is located below the rear feeding section 113, with its air blowing holes also facing the rear feeding section 113. The two air blowing pipes 152 are connected in parallel downstream of the air intake pipe 15 via a three-way valve 153. The low-temperature compressed air output from the air blowing pipe 152 above the rear pressing section 133 works in conjunction with the low-temperature compressed air output from the air blowing pipe 152 below the rear feeding section 113 to further optimize the drying efficiency and effect of the shoe sole material. Simultaneously, it ensures that residual UV solution adhering to the shoe sole material can be quickly blown off so that the solution can flow back into the soaking section 122.

[0069] In actual operation, the pressure of the low-temperature compressed air output from the air blowing rod tube 152 should be 0.65 to 0.75 MPa. The pressure of the low-temperature compressed gas can also be adjusted according to the actual working conditions.

[0070] Furthermore, the airflow direction of each air-blowing hole in the air-blowing pipe 152 located below the rear feeding section 113 should be inclined at 45° to the horizontal direction. This ensures that the air-blowing holes of the air-blowing pipe 152 below the rear feeding section 113 form a certain angle with the moving direction of the rear feeding section 113, thereby further optimizing the corresponding airflow efficiency and drying effect. Of course, the airflow direction of each air-blowing hole can also be flexibly adjusted according to specific working conditions. In principle, any adjustment that meets the actual application needs of the UV chemical treatment line is acceptable.

[0071] In addition, the exhaust system includes two exhaust vents 104 located on the top of the frame 10 and corresponding exhaust fans. One exhaust vent 104 is positioned above the feeding platform 102, and the other exhaust vent 104 is positioned above the unloading platform 103. Through the coordinated operation of each exhaust fan and its corresponding exhaust vent 104, the air near the feeding platform 102 and the unloading platform 103 can be promptly removed and replaced, so as to expel the odors and volatile substances emitted by the UV solution in a timely manner. This protects the health of workers who inhale volatile chemicals and other harmful substances when putting in and taking out shoe sole materials.

[0072] In a specific embodiment, the UV chemical treatment method provided in one embodiment of the present invention employs the UV chemical treatment line as described above, including:

[0073] Step S101, Feeding:

[0074] The shoe sole material to be processed is sent from the material pick-up station 103 to the feeding device 11, and then transported to the downstream workstation through the feeding device 11.

[0075] S102, soaking:

[0076] The feeding device 11 conveys the shoe sole material to the soaking tank 12 containing UV solution, immersing the shoe sole material in the UV solution in the soaking tank 12 until the shoe sole material has completed the UV solution soaking treatment.

[0077] S103, air-dried:

[0078] The feeding device 11 takes out the shoe sole material that has completed the UV chemical soaking treatment from the soaking tank 12, and uses low-temperature compressed air delivered by the blowing device to air dry the shoe sole material that has completed the UV chemical soaking treatment.

[0079] S104, Material Retrieval:

[0080] The feeding device 11 delivers the dried shoe sole material to the picking platform 103 so that the staff can pick up the shoe sole material.

[0081] In the described UV chemical treatment method, the shoe sole material is air-dried using low-temperature compressed air through sequential operation steps, eliminating the need for high-temperature drying and its associated cooling processes. This significantly simplifies the UV chemical treatment process and improves processing efficiency. Furthermore, since high-temperature drying is not used, the UV chemical does not evaporate quickly, which not only optimizes the treatment effect on the shoe sole material but also avoids the harm to workers and the surrounding environment caused by large-scale chemical evaporation, ensuring the health of workers.

[0082] In summary, the UV chemical treatment line provided in this invention operates by having the shoe sole material to be treated delivered from the material handling station to the feeding device, which then transports the material to an immersion tank containing UV chemical solution. The shoe sole material is immersed in the UV chemical solution in the immersion tank until the UV chemical solution treatment is completed. After the UV chemical solution treatment is completed, the shoe sole material is removed from the immersion tank by the conveying device. Then, low-temperature compressed air delivered by the blowing device is used to air dry the shoe sole material that has completed the UV chemical solution treatment. After air drying, the shoe sole material is transported to the material handling station by the feeding device and taken away by the staff for subsequent downstream processes or centralized storage and transportation. The UV chemical treatment line uses low-temperature compressed air to dry the shoe sole material, eliminating the need for high-temperature drying equipment and its supporting cooling devices. This significantly reduces the number of components in the UV chemical treatment line, simplifies the overall equipment assembly structure and corresponding processing flow, and improves processing efficiency. In addition, because high-temperature drying is not used, the UV chemical does not evaporate quickly, which not only optimizes the treatment effect of the shoe sole material but also avoids the harm to workers and the surrounding environment caused by large-scale chemical evaporation. With the operation of the exhaust device, the evaporating chemical can be quickly discharged, further preventing its harm to the health of workers and ensuring their health.

[0083] Furthermore, the UV chemical treatment method using this UV chemical treatment line provided by the present invention uses low-temperature compressed air to air-dry the shoe sole material through sequential operation steps, eliminating the need for high-temperature drying and its associated cooling processes. This significantly simplifies the UV chemical treatment process and improves process efficiency. In addition, since high-temperature drying is not used, the UV chemical does not evaporate quickly, which not only optimizes the treatment effect on the shoe sole material but also avoids the harm to workers and the surrounding environment caused by large-scale chemical evaporation, ensuring the health of workers.

[0084] The UV chemical treatment line and the UV chemical treatment method using the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A UV chemical treatment line, characterized in that, The machine includes a horizontally arranged frame with an internal cavity. One end of the frame is provided with a feeding platform for feeding shoe sole material, and the other end is provided with a picking platform for picking out shoe sole material. A feeding device is provided between the feeding platform and the picking platform to transport shoe sole material from the feeding platform to the picking platform. The frame is also provided with an immersion tank for holding UV solution. The immersion tank is located between the feeding platform and the picking platform along the material conveying direction of the feeding device. The shoe sole material on the feeding device can be immersed in the UV solution in the immersion tank. The frame is equipped with an air blowing device capable of conveying low-temperature compressed air. The air inlet of the air blowing device is connected to the downstream of an external air compressor, and the air outlet of the air blowing device is located at the junction of the soaking tank and the material handling platform. The air outlet of the air blowing device is also connected to the shoe sole material on the feeding device. The frame is also equipped with an exhaust device that can discharge the gas in the inner cavity of the frame; The inner cavity of the frame is also provided with a pressing device arranged above the feeding device. The bottom of the pressing device is equidistant from the feeding device and parallel to form a conveying space that can accommodate the shoe sole material. The movement direction of the bottom of the pressing device in contact with the shoe sole material is consistent with the conveying direction of the shoe sole material. The soaking tank includes a front downhill section, a soaking section, and a rear uphill section arranged sequentially along the material conveying direction. The depth of the front downhill section increases along the material conveying direction, the depth of the rear uphill section decreases along the material conveying direction, and the depth of the soaking section is constant. The feeding device includes a front feeding section arranged parallel to the front downhill section, a main feeding section arranged parallel to the soaking section, and a rear feeding section arranged parallel to the rear uphill section. The pressing device includes a front pressing section arranged parallel to the front feeding section, a main pressing section arranged parallel to the main feeding section, and a rear pressing section arranged parallel to the rear feeding section. The air blowing device includes an air intake pipe and an air blowing pipe group connected sequentially along the conveying direction of low temperature compressed air. The air outlet end of the air blowing pipe group is aligned with the back uphill section. A duct switch valve is connected between the air intake pipe and the air blowing pipe. The air blowing pipe assembly includes two air blowing rods, each with several air blowing holes on its wall. One air blowing rod is located above the rear pressing section, with each air blowing hole facing the rear pressing section. The other air blowing rod is located below the rear feeding section, with each air blowing hole facing the rear feeding section. The two air blowing rods are connected in parallel downstream of the air intake pipe via a three-way valve.

2. The UV chemical treatment line as described in claim 1, characterized in that, The inner cavity of the frame is provided with a drug storage tank and a drug supply tank that are connected sequentially along the UV drug delivery direction. The drug storage tank and the drug supply tank are connected by a drug replenishment pipe. A control valve is provided on the drug replenishment pipe. A float assembly that works in conjunction with the control valve is provided in the drug supply tank. The bottom of the medicine supply box has a medicine supply pipe that is aligned and connected to the soaking section, and the axis of the medicine supply pipe extends horizontally.

3. The UV chemical treatment line as described in claim 2, characterized in that, Both the bottom of the medicine storage tank and the bottom of the soaking section are equipped with medicine discharge pipes, and medicine discharge valves are installed on the medicine discharge pipes.

4. The UV chemical treatment line as described in claim 1, characterized in that, Both the feeding device and the pressing device are mesh chain conveyor belt mechanisms. A motor is installed in the inner cavity of the frame, and both the feeding device and the pressing device are driven by the motor through a chain.

5. The UV chemical treatment line as described in claim 1, characterized in that, The exhaust device includes two exhaust vents located on the top of the frame and a blower corresponding to each exhaust vent. One exhaust vent is positioned above the feeding platform, and the other exhaust vent is positioned above the unloading platform.

6. A UV chemical treatment method, employing the UV chemical treatment line as described in any one of claims 1 to 5, characterized in that, Including the following steps: The material feeding process involves feeding the shoe sole material to be processed from the material pick-up station to the feeding device, and then conveying the shoe sole material to the downstream workstation through the feeding device. The soaking and feeding device transports the shoe sole material to a soaking tank containing UV solution, immersing the shoe sole material in the UV solution in the soaking tank until the shoe sole material has completed the UV solution soaking treatment. The air-drying process involves the feeding device removing the shoe sole material that has undergone UV chemical soaking from the soaking tank and using low-temperature compressed air delivered by the blowing device to air-dry the shoe sole material that has undergone UV chemical soaking. The material handling and feeding device delivers the dried shoe sole material to the material handling platform so that workers can take it away.

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