Sanitary napkin production surface spraying treatment machine and spraying method

Abstract

The invention discloses a sanitary napkin production surface spraying processor and a spraying method, and relates to the technical field of sanitary napkin production surface spraying, the sanitary napkin production surface spraying processor comprises a bottom plate, an embossing assembly, a sanitary napkin adjusting assembly, a spraying assembly and a cleaning assembly; an embossing assembly, a sanitary towel adjusting assembly, a spraying assembly and a cleaning assembly are installed at the upper end of the bottom plate. And the sanitary towel adjusting assembly comprises a first mounting frame, a second self-locking hydraulic machine, a cross-shaped mounting plate, first limiting rods, a second motor and a second gear, the first mounting frame is arranged on the front side of the middle of the upper end of the bottom plate, and the two first limiting rods are correspondingly connected to the left side and the right side of the middle of the first mounting frame in a sliding mode. The ultrathin sanitary towel can be stably grabbed for position adjustment, the adhesive force of glue can be effectively enhanced, accurate coating thickness spraying can be achieved, meanwhile, the spraying device is cleaned through the ultrasonic cleaning device, and blockage and part abrasion are prevented.

Description

Technical Field

[0001] This invention relates to the field of surface coating technology for sanitary napkin production, specifically to a surface coating treatment machine and coating method for sanitary napkin production. Background Technology

[0002] The surface coating treatment machine for sanitary napkin production is an intelligent equipment specifically designed for the manufacture of sanitary napkins. Its core function is to precisely spray functional coatings, such as adhesives, antibacterial agents, cooling agents, and anti-backflow materials, onto the surface material of sanitary napkins. Through high-precision atomization and rapid curing technology, the coating is uniformly adhered, thereby improving product performance and comfort.

[0003] Among the existing technologies, the surface spraying treatment machine and spraying method for sanitary napkin production, which is authorized by announcement number CN119259385A, includes a crushing component, including a crushing part, a feeding barrel, a conical block, a crushing cover, a rotating disk, a drive rod, a rotating wheel, a drive wheel and a drive column. The conical block is movably connected to the inside of the feeding barrel. The crushing cover is sleeved on the outside of the conical block. The crushing cover is fixed to the inner wall of the feeding barrel. The rotating disk is disposed on one side of the feeding barrel. The drive rod is located on one side of the rotating disk. The rotating wheel is fixed to one side of the drive rod.

[0004] In existing technologies, traditional equipment does not accurately control the clamping force of ultra-thin sanitary napkins, which can easily lead to material deformation or displacement. It cannot meet the position adjustment requirements of precision spraying, has weak adhesive adhesion, uneven spraying thickness, and long-term glue accumulation on sprayed parts can easily clog the spray nozzles. Manual cleaning is inefficient and accelerates the wear of parts. Therefore, we propose a surface spraying treatment machine and spraying method for sanitary napkin production. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the existing defects and provide a surface spraying treatment machine and spraying method for sanitary napkin production. This allows ultra-thin sanitary napkins to be stably grasped and their position adjusted, effectively enhances adhesive adhesion, and achieves precise coating thickness spraying. At the same time, the spraying device is cleaned by an ultrasonic cleaning device to prevent blockage and component wear, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a surface coating treatment machine for sanitary napkin production, comprising a base plate, an embossing component, a sanitary napkin adjustment component, a coating component, and a cleaning component;

[0007] Base plate: The upper part is equipped with embossing components, sanitary napkin adjustment components, spraying components and cleaning components;

[0008] Sanitary napkin adjustment assembly: includes an installation frame 1, a self-locking hydraulic press 2, a cross mounting plate, a limit rod 1, a motor 2, and a gear 2. The installation frame 1 is provided on the front side of the upper middle part of the base plate. Two limit rods 1 are slidably connected to the left and right sides of the middle part of the installation frame 1. The lower end of the limit rod 1 is fixedly connected to the cross mounting plate. The self-locking hydraulic press 2 is fixedly connected to the rear side of the upper middle part of the installation frame 1. The lower end of the self-locking hydraulic press 2 is fixedly connected to the cross mounting plate. The front rear side of the cross mounting plate is fixedly connected to the motor 2. The output shaft of the motor 2 is fixedly connected to the gear 2.

[0009] This sanitary napkin production surface spraying treatment machine uses a base plate as its base and integrates four major functional modules: embossing component, sanitary napkin adjustment component, spraying component, and cleaning component. The sanitary napkin adjustment component is fixed to the front side of the center of the base plate by a mounting bracket. Its core transmission mechanism includes a cross mounting plate that is driven and lifted by a self-locking hydraulic press. Two limit rods ensure vertical movement accuracy, and a motor drives a gear to achieve rotational adjustment. The self-locking hydraulic press pushes the cross mounting plate vertically up and down along the limit rods, and the motor transmits torque through the gear to achieve horizontal rotation, thus forming a positioning capability.

[0010] Furthermore, the sanitary napkin adjustment assembly also includes a negative pressure air box, an air supply pipe, a connecting cylinder, a mounting plate, a gear one, and suction cups. Two suction cups are located at the lower end of the mounting plate, and an infrared detector is located at the lower end of each suction cup. A connecting cylinder is located at the middle of the upper end of each suction cup. Gear one is located at the lower outer end of the connecting cylinder, and gear one meshes with gear two. The middle outer end of the connecting cylinder is rotatably connected to the cross-shaped mounting plate. The upper end of the connecting cylinder is rotatably connected to a mounting frame one. A negative pressure air box is located at the upper end of the mounting frame one. The air inlet of the negative pressure air box is rotatably connected to one end of the air supply pipe, and the other end of the air supply pipe is rotatably connected to the connecting cylinder via a sealed bearing.

[0011] The sanitary napkin adjustment component extends the negative pressure adsorption system. A suction cup with an infrared detector is set at the lower end of the mounting plate. Rotation is achieved through the meshing of gear one and gear two. The negative pressure air box is connected to the air supply pipe and the sealed bearing of the connecting cylinder to form an air passage. The connecting cylinder is rotatably connected to the cross mounting plate and mounting bracket one. After the infrared detector identifies the position of the sanitary napkin, the suction cup adsorbs and fixes the sanitary napkin under the action of negative pressure. The gear transmission system realizes the product angle adjustment. The air supply pipe adopts dynamic sealing to ensure airtightness during rotation.

[0012] Furthermore, the spraying assembly includes a second mounting bracket, a third motor, a threaded rod, a movable mounting plate, and a limiting slide rod. The second mounting bracket is fixedly connected to the rear side of the upper middle part of the base plate. The third motor is rotatably connected to the upper inner side of the second mounting bracket. The third motor is located on the left side of the second mounting bracket. The output shaft of the third motor is fixedly connected to the threaded rod. The limiting slide rod is fixedly connected to the upper inner side of the second mounting bracket. The movable mounting plate is slidably connected to the limiting slide rod. The movable mounting plate is threadedly connected to the threaded rod.

[0013] The second mounting bracket of the spraying component is fixed to the rear side of the base plate. The third motor drives the threaded rod to rotate, which causes the movable mounting plate to move horizontally along the limiting slide bar. The threaded rod converts the rotational motion of the third motor into the linear motion of the movable mounting plate, and the limiting slide bar eliminates radial sway during the movement.

[0014] Furthermore, the spraying assembly also includes a self-locking electric telescopic rod, a second limiting rod, a mounting frame, a damping rod, and a rubber pad. The self-locking electric telescopic rod is provided in the middle of the inner side of the movable mounting plate. The second limiting rod is slidably connected to the front and rear ends of the movable mounting plate. The lower end of the second limiting rod is fixedly connected to the mounting frame. The lower end of the self-locking electric telescopic rod is fixedly connected to the mounting frame. The front and rear ends of the mounting frame are provided with damping rods, and the lower end of the damping rods is provided with rubber pads.

[0015] The movable mounting plate is equipped with a mounting frame driven by a self-locking electric telescopic rod. The movement trajectory is constrained by limit rod two. The damping rod and rubber pad form a buffer system. The electric telescopic rod realizes vertical stroke control, and the damping system absorbs the impact at the end of the movement while fixing the sanitary napkin, thus facilitating spraying.

[0016] Furthermore, the spraying assembly also includes a multi-way solenoid valve, an infrared detection head, and a spray nozzle. The multi-way solenoid valve is snapped into the inner side of the mounting frame. An infrared detection head is provided at the lower center of the multi-way solenoid valve, and a spray nozzle is provided at the outlet of the multi-way solenoid valve.

[0017] The mounting frame is equipped with a multi-way solenoid valve, and its lower end integrates an infrared detection head and a nozzle infrared detection head to monitor the spraying distance in real time. The multi-way solenoid valve precisely controls the opening and closing of each nozzle.

[0018] Furthermore, the spraying assembly also includes a storage tank, a water pump, and a delivery pipe. The storage tank is fixedly connected to the upper end of the mounting bracket two, and a water pump is provided at the lower right side of the storage tank. The outlet of the water pump is connected to the inlet of the multi-way solenoid valve through the delivery pipe.

[0019] The storage bin is fixed to the upper end of the mounting frame 2. It supplies materials to the multi-way solenoid valve through a water pump and a delivery pipe. The plunger pump provides stable pressure, and the delivery pipe transports raw materials, enabling the storage of glue or other raw materials.

[0020] Furthermore, the embossing assembly includes a self-locking hydraulic press, a telescopic rod, a mounting block, a rolling wheel, an embossing plate, and a motor. The self-locking hydraulic press is located at the upper front left end of the base plate, and the telescopic rod is located at the upper front right end of the base plate. The self-locking hydraulic press is fixedly connected to the upper end of the telescopic rod, and the mounting block is located on the left side of the mounting block. The two ends of the rolling wheel are rotatably connected to the two mounting blocks respectively. The output shaft of the motor is fixedly connected to the rolling wheel. Multiple dovetail grooves are opened on the outer side of the rolling wheel, and the rolling wheel is slidably connected to the embossing plate through the dovetail grooves.

[0021] The embossing assembly includes a symmetrically arranged self-locking hydraulic press and a telescopic rod, which together support the mounting block. A motor drives a rolling wheel with a dovetail groove, allowing for quick replacement of the embossing plate. The hydraulic system provides stable pressure, and the motor drives the roller to rotate at a constant speed, which can press indentations into the surface of the sanitary napkin, making it easier for the glue to adhere better to the sanitary napkin during subsequent spraying.

[0022] Furthermore, the cleaning assembly also includes a water storage tank, a cleaning tank, an ultrasonic vibrator, a heating ring, and an infrared locator. The cleaning tank is fixedly connected to the lower right side of the upper mounting bracket on the base plate. An infrared locator is installed in the middle of the inner side of the cleaning tank. A heating ring is installed at the lower inner side of the cleaning tank. An ultrasonic vibrator is installed inside the cleaning tank. The water storage tank is installed at the upper end of the base plate. The outlet of the water storage tank is connected to the cleaning tank through a connecting pipe. The outlet of the cleaning tank is connected to the outside.

[0023] The cleaning assembly includes a water tank and a cleaning chamber with a heating ring. It has a built-in ultrasonic vibrator and an infrared positioner. The heating ring maintains a constant temperature for cleaning, and the ultrasonic cavitation effect provides deep cleaning. Cleaning can be performed when the spraying device moves into the cleaning chamber.

[0024] Furthermore, it also includes a protective box, a mounting frame three, and a hot air blower. A belt conveyor is provided at the upper end of the base plate, and a mounting frame three is provided at the rear of the upper end of the base plate. Two hot air blowers are provided at the end of the mounting frame three. A protective box is provided at the upper end of the base plate, and an embossing component, a sanitary napkin adjustment component, a spraying component, and a cleaning component are provided inside the protective box.

[0025] The protective box protects the core components, and the hot air blower on the mounting frame 3 and the belt conveyor form a drying system, with the hot air circulation system achieving drying.

[0026] A spraying method for a surface coating treatment machine used in sanitary napkin production includes the following steps:

[0027] S1: After the equipment is started, the sanitary napkin is fed into the working area inside the protective box by a belt conveyor. First, the self-locking hydraulic press of the embossing component drives the rolling wheel to press down, while the motor drives the embossing plate to rotate, pressing out a specific texture on the surface of the sanitary napkin to enhance the adhesion of the glue.

[0028] S2: Subsequently, the sanitary napkin adjustment component positions the sanitary napkin through the infrared detector of the suction cup, the negative pressure air box is activated to adsorb and fix it, the self-locking hydraulic press II pushes the cross mounting plate to lift and adjust the height, and the motor II drives the suction cup to rotate through gear II meshing with gear I, so as to realize the multi-angle positioning of the sanitary napkin.

[0029] S3: The motor of the spraying assembly drives the threaded rod to rotate, which moves the movable mounting plate horizontally along the limit slide bar to above the sanitary napkin. The self-locking electric telescopic rod lowers the mounting frame, and the damping rod and rubber pad buffer and position it, while fixing the sanitary napkin to be sprayed. The infrared detection head of the multi-way solenoid valve monitors the spraying distance. The water pump draws the adhesive from the storage tank, transports it through the conveying pipe, and sprays it precisely onto the embossed surface through the nozzle. Finally, the processed sanitary napkin is sent to the mounting frame below the third mounting frame by the belt conveyor, and the hot air blower dries and cures it.

[0030] S4: After the spraying is completed, the cleaning box of the cleaning component guides the spraying device into the cleaning box through the infrared positioner, the water tank supplies water, the heating ring heats the water temperature, and the ultrasonic vibrator cleans the residual adhesive from the nozzle.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: The surface spraying treatment machine and spraying method for sanitary napkin production have the following advantages:

[0032] 1. The surface coating treatment machine and coating method for this sanitary napkin production utilize a negative pressure adsorption system combined with infrared detection technology to ensure stable gripping of ultra-thin fiber substrates. The coordinated control of the gear transmission mechanism and hydraulic lifting device enables the sanitary napkin to rotate freely in three-dimensional space for positioning. Compared with static production lines with fixed clamps, this system significantly reduces the risk of material deformation, allowing ultra-thin sanitary napkins to be stably gripped and their position adjusted.

[0033] 2. The surface coating treatment machine and coating method for this sanitary napkin production adopt a dovetail slide type quick-change embossing plate design for the flower component. The hydraulic press and telescopic rod linkage mechanism of the embossing roller provide constant pressure output to ensure uniform embossing depth and press out specific textures on the surface of the sanitary napkin, which can effectively enhance the adhesion of the glue.

[0034] 3. The surface coating treatment machine and coating method for this sanitary napkin production utilizes a multi-channel control system with electromagnetic valves and infrared ranging technology to achieve precise coating thickness. The ultrasonic and heating system embedded in the cleaning tank forms a closed-loop maintenance unit, automatically removing residual adhesive from the nozzles during process intervals. The infrared positioner in the cleaning tank guides the nozzles to enter the cleaning solution at a constant pressure, avoiding wear on precision parts caused by manual disassembly. This enables precise coating thickness coating. Simultaneously, the ultrasonic cleaning device cleans the coating equipment, preventing blockages and component wear. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the structure of the present invention;

[0036] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0037] Figure 3 This is an enlarged schematic diagram of the sanitary napkin adjustment component of the present invention;

[0038] Figure 4 This is an enlarged structural schematic diagram of the spraying assembly of the present invention;

[0039] Figure 5 This is an enlarged structural diagram of the right side of the spraying assembly of the present invention;

[0040] Figure 6 This is a partially enlarged structural schematic diagram of the spraying assembly of the present invention.

[0041] In the diagram: 1. Base plate; 2. Belt conveyor; 3. Embossing assembly; 31. Self-locking hydraulic press I; 32. Telescopic rod; 33. Mounting block; 34. Rolling wheel; 35. Embossing plate; 36. Motor I; 4. Sanitary napkin adjustment assembly; 41. Mounting bracket I; 42. Self-locking hydraulic press II; 43. Cross mounting plate; 44. Limiting rod I; 45. Negative pressure air box; 46. Air supply pipe; 47. Connecting cylinder; 48. Mounting plate; 49. Gear I; 410. Motor II; 411. Gear II; 412. Suction cup; 5. Spraying assembly; 51. Mounting bracket II. 52 Motor III, 53 Threaded Rod, 54 Movable Mounting Plate, 55 Self-Locking Electric Telescopic Rod, 56 Limiting Rod II, 57 Mounting Frame, 58 Damping Rod, 59 Rubber Pad, 510 Multi-way Solenoid Valve, 511 Infrared Detector Head, 512 Nozzle, 513 Storage Bin, 514 Water Pump, 515 Conveying Pipe, 516 Limiting Slide Rod, 6 Cleaning Components, 61 Water Storage Tank, 62 Cleaning Box, 63 Ultrasonic Vibrator, 64 Heating Ring, 65 Infrared Positioner, 7 Protection Box, 8 Mounting Frame III, 9 Hot Air Blower. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figure 1-6 This embodiment provides a technical solution: a surface spraying treatment machine for sanitary napkin production, including a base plate 1, an embossing component 3, a sanitary napkin adjusting component 4, a spraying component 5, and a cleaning component 6;

[0044] Base plate 1: The upper end is equipped with embossing component 3, sanitary napkin adjustment component 4, spraying component 5 and cleaning component 6;

[0045] The embossing assembly 3 includes a self-locking hydraulic press 31, a telescopic rod 32, a mounting block 33, a rolling wheel 34, an embossing plate 35, and a motor 36. The self-locking hydraulic press 31 is located at the upper front left end of the base plate 1, and the telescopic rod 32 is located at the upper front right end of the base plate 1. The mounting block 33 is fixedly connected to the upper end of the self-locking hydraulic press 31 and the telescopic rod 32. The motor 36 is located on the left side of the mounting block 33. The two ends of the rolling wheel 34 are rotatably connected to the two mounting blocks 33 respectively. The output shaft of the motor 36 is fixedly connected to the rolling wheel 34. Multiple dovetail grooves are opened on the outer side of the rolling wheel 34, and the rolling wheel 34 is slidably connected to the embossing plate 35 through the dovetail grooves.

[0046] The embossing assembly 3 includes a symmetrically arranged self-locking hydraulic press 31 and a telescopic rod 32, which together support the mounting block 33. A motor 36 drives a rolling wheel 34 with a dovetail groove, which can quickly replace the embossing plate 35. The hydraulic system provides stable pressure, and the motor drives the roller to rotate at a constant speed, which can press indentations on the surface of the sanitary napkin, making it easier for the glue to adhere better to the sanitary napkin during subsequent spraying.

[0047] Sanitary napkin adjustment component 4: includes mounting bracket 1 41, self-locking hydraulic press 2 42, cross mounting plate 43, limit rod 1 44, motor 2 410, and gear 2 411. Mounting bracket 1 41 is provided on the front side of the upper middle part of the base plate 1. Two limit rods 1 44 are slidably connected to the left and right sides of the middle part of mounting bracket 1 41. The lower end of the limit rod 1 44 is fixedly connected to the cross mounting plate 43. The self-locking hydraulic press 2 42 is fixedly connected to the rear side of the upper middle part of mounting bracket 1 41. The lower end of the self-locking hydraulic press 2 42 is fixedly connected to the cross mounting plate 43. The front rear side of the cross mounting plate 43 is fixedly connected to the motor 2 410. The output shaft of motor 2 410 is fixedly connected to gear 2 411.

[0048] This sanitary napkin production surface spraying treatment machine uses a base plate 1 as its base and integrates four major functional modules: embossing component 3, sanitary napkin adjustment component 4, spraying component 5, and cleaning component 6. The sanitary napkin adjustment component 4 is fixed to the front side of the center of the base plate by a mounting bracket 41. Its core transmission mechanism includes a cross mounting plate 43 driven and lifted by a self-locking hydraulic press 42. Vertical movement accuracy is ensured by two limit rods 44. A motor 410 drives a gear 411 to achieve rotational adjustment. The self-locking hydraulic press 42 pushes the cross mounting plate 43 to rise and fall vertically along the limit rods 44. The motor 410 transmits torque through the gear 411 to achieve horizontal rotation, thus forming a positioning capability.

[0049] The sanitary napkin adjustment assembly 4 also includes a negative pressure air box 45, an air supply pipe 46, a connecting cylinder 47, a mounting plate 48, a gear 49, and a suction cup 412. The lower end of the mounting plate 48 is provided with two suction cups 412, and the lower end of the suction cups 412 is provided with an infrared detector. The upper middle part of the suction cups 412 is provided with a connecting cylinder 47. The lower outer end of the connecting cylinder 47 is provided with a gear 49, which meshes with a gear 411. The middle outer end of the connecting cylinder 47 is rotatably connected to the cross mounting plate 43. The upper end of the connecting cylinder 47 is rotatably connected to the mounting bracket 41. The upper end of the mounting bracket 41 is provided with a negative pressure air box 45. The air inlet of the negative pressure air box 45 is rotatably connected to one end of the air supply pipe 46. The other end of the air supply pipe 46 is rotatably connected to the connecting cylinder 47 through a sealed bearing.

[0050] The sanitary napkin adjustment component 4 extends the negative pressure adsorption system. The lower end of the mounting plate 48 is equipped with a suction cup 412 with an infrared detector. The suction cup 412 rotates through the meshing of gear 1 49 and gear 2 411. The negative pressure air box 45 is connected to the air supply pipe 46 and the sealed bearing of the connecting cylinder 47 to form an air passage. The connecting cylinder 47 is rotatably connected to the cross mounting plate 43 and the mounting bracket 1 41. After the infrared detector identifies the position of the sanitary napkin, the suction cup 412 adsorbs and fixes the sanitary napkin under the action of negative pressure. The gear transmission system realizes the product angle adjustment. The air supply pipe 46 adopts dynamic sealing to ensure airtightness during rotation.

[0051] The spraying assembly 5 includes a second mounting bracket 51, a third motor 52, a threaded rod 53, a movable mounting plate 54, and a limiting slide rod 516. The second mounting bracket 51 is fixedly connected to the rear side of the upper middle part of the base plate 1. The third motor 52 is rotatably connected to the upper inner side of the second mounting bracket 51. The third motor 52 is located on the left side of the second mounting bracket 51. The output shaft of the third motor 52 is fixedly connected to the threaded rod 53. The limiting slide rod 516 is fixedly connected to the upper inner side of the second mounting bracket 51. The movable mounting plate 54 is slidably connected to the limiting slide rod 516. The movable mounting plate 54 is threadedly connected to the threaded rod 53.

[0052] The mounting bracket 51 of the spraying component 5 is fixed to the rear side of the base plate. The motor 52 drives the threaded rod 53 to rotate, which drives the movable mounting plate 54 to move horizontally along the limiting slide bar 516. The threaded rod 53 converts the rotational motion of the motor 52 into the linear motion of the movable mounting plate 54, and the limiting slide bar 516 eliminates the radial sway during the movement.

[0053] The spraying assembly 5 also includes a self-locking electric telescopic rod 55, a second limiting rod 56, a mounting frame 57, a damping rod 58, and a rubber pad 59. The self-locking electric telescopic rod 55 is provided in the middle of the inner side of the movable mounting plate 54. The second limiting rod 56 is slidably connected to the front and rear ends of the movable mounting plate 54. The lower end of the second limiting rod 56 is fixedly connected to the mounting frame 57. The lower end of the self-locking electric telescopic rod 55 is fixedly connected to the mounting frame 57. The front and rear ends of the mounting frame 57 are provided with damping rods 58. The lower end of the damping rod 58 is provided with a rubber pad 59.

[0054] The movable mounting plate 54 is equipped with a mounting frame 57 driven by a self-locking electric telescopic rod 55. The movement trajectory is constrained by a limit rod 56. The damping rod 58 and the rubber pad 59 form a buffer system. The electric telescopic rod realizes vertical stroke control, and the damping system absorbs the impact at the end of the movement and fixes the sanitary napkin, thereby facilitating spraying.

[0055] The spraying assembly 5 also includes a multi-way solenoid valve 510, an infrared detection head 511, and a spray nozzle 512. The multi-way solenoid valve 510 is snapped into the inner side of the mounting frame 57. The infrared detection head 511 is provided at the lower middle part of the multi-way solenoid valve 510, and the spray nozzle 512 is provided at the outlet of the multi-way solenoid valve 510.

[0056] The mounting frame 57 has a multi-way solenoid valve 510 embedded in it. The lower end of the valve integrates an infrared detection head 511 and a nozzle 512. The infrared detection head 511 monitors the spraying distance in real time, and the multi-way solenoid valve 510 precisely controls the opening and closing of each nozzle 512.

[0057] The spraying assembly 5 also includes a storage tank 513, a water pump 514 and a delivery pipe 515. The storage tank 513 is fixedly connected to the upper end of the mounting bracket 51. The water pump 514 is installed at the lower right side of the storage tank 513. The outlet of the water pump 514 is connected to the inlet of the multi-way solenoid valve 510 through the delivery pipe 515.

[0058] The storage bin 513 is fixed to the upper end of the mounting bracket 2 51. It supplies materials to the multi-way solenoid valve 510 through the water pump 514 and the conveying pipe 515. The plunger pump provides stable pressure, and the conveying pipe 515 conveys raw materials, which can store glue or other raw materials.

[0059] The cleaning assembly 6 also includes a water storage tank 61, a cleaning tank 62, an ultrasonic vibrator 63, a heating ring 64, and an infrared locator 65. The cleaning tank 62 is fixedly connected to the lower right side of the mounting bracket 51 on the upper end of the base plate 1. The infrared locator 65 is installed in the middle of the inner side of the cleaning tank 62. The heating ring 64 is installed at the lower inner side of the cleaning tank 62. The ultrasonic vibrator 63 is installed inside the cleaning tank 62. The water storage tank 61 is installed at the upper end of the base plate 1. The outlet of the water storage tank 61 is connected to the cleaning tank 62 through a connecting pipe. The outlet of the cleaning tank 62 is connected to the outside.

[0060] The cleaning assembly 6 includes a water tank 61 and a cleaning chamber 62 with a heating ring 64. It has a built-in ultrasonic vibrator 63 and an infrared positioner 65. The heating ring 64 maintains constant temperature cleaning, and the ultrasonic cavitation effect enables deep cleaning. Cleaning can be performed when the spraying device moves into the cleaning chamber 62.

[0061] It also includes a protective box 7, a mounting frame 3 8 and a hot air blower 9. A belt conveyor 2 is installed at the upper end of the base plate 1. A mounting frame 3 8 is installed at the rear side of the upper end of the base plate 1. Two hot air blowers 9 are installed at the end of the mounting frame 3 8. A protective box 7 is installed at the upper end of the base plate 1. An embossing component 3, a sanitary napkin adjustment component 4, a spraying component 5 and a cleaning component 6 are installed inside the protective box 7.

[0062] The protective box 7 protects the core components, and the hot air blower 9 on the mounting frame 3 8 and the belt conveyor 2 form a drying process, and the hot air circulation system realizes the drying.

[0063] A spraying method for a surface coating treatment machine used in sanitary napkin production includes the following steps:

[0064] S1: After the equipment is started, the sanitary napkin is fed into the working area inside the protective box 7 via the belt conveyor 2. First, the self-locking hydraulic press 31 of the embossing component 3 drives the rolling wheel 34 to press down, while the motor 36 drives the embossing plate 35 to rotate, pressing out a specific texture on the surface of the sanitary napkin to enhance the adhesion of the glue.

[0065] S2: Subsequently, the sanitary napkin adjustment component 4 positions the sanitary napkin through the infrared detector of the suction cup 412, the negative pressure air box 45 starts to adsorb and fix it, the self-locking hydraulic press 42 pushes the cross mounting plate 43 to lift and adjust the height, and the motor 410 drives the suction cup 412 to rotate through the meshing of the gear 411 and the gear 49, so as to realize the multi-angle positioning of the sanitary napkin.

[0066] S3: The motor 52 of the spraying component 5 drives the threaded rod 53 to rotate, which drives the movable mounting plate 54 to move horizontally along the limiting slide bar 516 to above the sanitary napkin. The self-locking electric telescopic rod 55 lowers the mounting frame 57, and the damping rod 58 and rubber pad 59 buffer and position it, while fixing the sanitary napkin to be sprayed. The infrared detection head 511 of the multi-way solenoid valve 510 monitors the spraying distance. The water pump 514 draws glue from the storage box 513, conveys it through the conveying pipe 515, and sprays it accurately onto the embossed surface by the nozzle 512. Finally, the sanitary napkin is sent to the mounting frame 8 below by the belt conveyor 2, and the hot air blower 9 performs hot air drying and curing.

[0067] S4: After the spraying is completed, the cleaning tank 62 of the cleaning component 6 guides the spraying device into the cleaning device through the infrared locator 65, the water tank 61 supplies water, the heating ring 64 heats the water temperature, and the ultrasonic vibrator 63 cleans the residual adhesive from the nozzle.

[0068] It is worth noting that, in the above embodiments, the input terminals of the belt conveyor 2, self-locking hydraulic press 31, motor 36, self-locking hydraulic press 42, negative pressure air box 45, motor 410, motor 52, self-locking electric telescopic rod 55, multi-way solenoid valve 510, water pump 514, ultrasonic vibrator 63, heating ring 64, and hot air blower 9 are electrically connected to the output terminal of an external power supply via an external PLC controller. The output terminals of the infrared detector 511 and infrared positioner 65 are connected to the external PLC. The controller is electrically connected. Motor 1 36, self-locking hydraulic press 2 42, motor 2 410 and motor 3 52 are servo motors. The external PLC controller controls the belt conveyor 2, self-locking hydraulic press 1 31, motor 1 36, self-locking hydraulic press 2 42, negative pressure air box 45, motor 2 410, motor 3 52, self-locking electric telescopic rod 55, multi-way solenoid valve 510, water pump 514, ultrasonic vibrator 63, heating ring 64 and hot air blower 9 using methods commonly used in existing technology.

[0069] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A surface coating treatment machine for sanitary napkin production, characterized in that: It includes a base plate (1), an embossing assembly (3), a sanitary napkin adjustment assembly (4), a spraying assembly (5), and a cleaning assembly (6); Base plate (1): The upper end is equipped with embossing component (3), sanitary napkin adjustment component (4), spraying component (5) and cleaning component (6); Sanitary napkin adjustment assembly (4): includes mounting frame one (41), self-locking hydraulic press two (42), cross mounting plate (43), limit rod one (44), motor two (410), and gear two (411). Mounting frame one (41) is provided on the front side of the upper middle part of the base plate (1). Two limit rods one (44) are slidably connected to the middle left and right sides of the mounting frame one (41). The lower end of the limit rod one (44) is fixedly connected to the cross mounting plate (43). The rear side of the upper middle part of the mounting frame one (41) is fixedly connected to the self-locking hydraulic press two (42). The lower end of the self-locking hydraulic press two (42) is fixedly connected to the cross mounting plate (43). The rear side of the front end of the cross mounting plate (43) is fixedly connected to the motor two (410). The output shaft of the motor two (410) is fixedly connected to the gear two (411).

2. The surface coating treatment machine for sanitary napkin production according to claim 1, characterized in that: The sanitary napkin adjustment assembly (4) further includes a negative pressure air box (45), an air supply pipe (46), a connecting cylinder (47), a mounting plate (48), a gear (49), and a suction cup (412). Two suction cups (412) are provided at the lower end of the mounting plate (48), and an infrared detector is provided at the lower end of each suction cup (412). A connecting cylinder (47) is provided at the middle of the upper end of each suction cup (412), and a gear (49) is provided at the lower outer side of the connecting cylinder (47). Gear 1 (49) meshes with gear 2 (411). The middle part of the outer end of the connecting cylinder (47) is rotatably connected to the cross mounting plate (43). The upper end of the connecting cylinder (47) is rotatably connected to the mounting bracket 1 (41). The upper end of the mounting bracket 1 (41) is provided with a negative pressure air box (45). The air inlet of the negative pressure air box (45) is rotatably connected to one end of the air supply pipe (46). The other end of the air supply pipe (46) is rotatably connected to the connecting cylinder (47) through a sealed bearing.

3. The surface coating treatment machine for sanitary napkin production according to claim 1, characterized in that: The spraying assembly (5) includes a second mounting bracket (51), a third motor (52), a threaded rod (53), a movable mounting plate (54), and a limiting slide rod (516). The second mounting bracket (51) is fixedly connected to the rear side of the upper middle part of the base plate (1). The third motor (52) is rotatably connected to the upper inner side of the second mounting bracket (51). The third motor (52) is provided on the left side of the second mounting bracket (51). The output shaft of the third motor (52) is fixedly connected to the threaded rod (53). The limiting slide rod (516) is fixedly connected to the upper inner side of the second mounting bracket (51). The movable mounting plate (54) is slidably connected to the limiting slide rod (516). The movable mounting plate (54) is threadedly connected to the threaded rod (53).

4. The surface coating treatment machine for sanitary napkin production according to claim 1, characterized in that: The spraying assembly (5) also includes a self-locking electric telescopic rod (55), a second limiting rod (56), a mounting frame (57), a damping rod (58), and a rubber pad (59). The self-locking electric telescopic rod (55) is provided in the middle of the inner side of the movable mounting plate (54). The second limiting rod (56) is slidably connected to the front and rear ends of the movable mounting plate (54). The lower end of the second limiting rod (56) is fixedly connected to the mounting frame (57). The lower end of the self-locking electric telescopic rod (55) is fixedly connected to the mounting frame (57). The front and rear ends of the mounting frame (57) are provided with damping rods (58). The lower end of the damping rod (58) is provided with a rubber pad (59).

5. A surface coating treatment machine for sanitary napkin production according to claim 1, characterized in that: The spraying assembly (5) also includes a multi-way solenoid valve (510), an infrared detection head (511), and a spray nozzle (512). The multi-way solenoid valve (510) is snapped into the inner side of the mounting frame (57). An infrared detection head (511) is provided at the lower middle part of the multi-way solenoid valve (510), and a spray nozzle (512) is provided at the outlet of the multi-way solenoid valve (510).

6. The surface coating treatment machine for sanitary napkin production according to claim 1, characterized in that: The spraying assembly (5) also includes a storage tank (513), a water pump (514) and a delivery pipe (515). The upper end of the mounting bracket (51) is fixedly connected to the storage tank (513). The lower right end of the storage tank (513) is provided with a water pump (514). The outlet of the water pump (514) is connected to the inlet of the multi-way solenoid valve (510) through the delivery pipe (515).

7. A surface coating treatment machine for sanitary napkin production according to claim 1, characterized in that: The embossing assembly (3) includes a self-locking hydraulic press (31), a telescopic rod (32), a mounting block (33), a rolling wheel (34), an embossing plate (35), and a motor (36). The self-locking hydraulic press (31) is provided at the upper front left end of the base plate (1), and the telescopic rod (32) is provided at the upper front right end of the base plate (1). The mounting block (33) is fixedly connected to the upper end of the self-locking hydraulic press (31) and the telescopic rod (32). The motor (36) is provided on the left side of the mounting block (33). The two ends of the rolling wheel (34) are rotatably connected to the two mounting blocks (33) respectively. The output shaft of the motor (36) is fixedly connected to the rolling wheel (34). Multiple dovetail grooves are provided on the outer side of the rolling wheel (34). The rolling wheel (34) is slidably connected to the embossing plate (35) through the dovetail grooves.

8. A surface coating treatment machine for sanitary napkin production according to claim 1, characterized in that: The cleaning assembly (6) also includes a water storage tank (61), a cleaning tank (62), an ultrasonic vibrator (63), a heating ring (64), and an infrared locator (65). The cleaning tank (62) is fixedly connected to the lower right side of the mounting bracket 2 (51) at the upper end of the base plate (1). The infrared locator (65) is provided in the middle of the inner side of the cleaning tank (62). The heating ring (64) is provided at the lower inner side of the cleaning tank (62). The ultrasonic vibrator (63) is provided inside the cleaning tank (62). The water storage tank (61) is provided at the upper end of the base plate (1). The outlet of the water storage tank (61) is connected to the cleaning tank (62) through a connecting pipe. The outlet of the cleaning tank (62) is connected to the outside.

9. A surface coating treatment machine for sanitary napkin production according to claim 1, characterized in that: It also includes a protective box (7), a mounting frame three (8) and a hot air blower (9). A belt conveyor (2) is provided at the upper end of the base plate (1). A mounting frame three (8) is provided at the rear side of the upper end of the base plate (1). Two hot air blowers (9) are provided at the end of the mounting frame three (8). A protective box (7) is provided at the upper end of the base plate (1). An embossing component (3), a sanitary napkin adjustment component (4), a spraying component (5) and a cleaning component (6) are provided inside the protective box (7).

10. A coating method for a surface coating treatment machine for sanitary napkin production according to any one of claims 1-9, characterized in that: Includes the following steps: S1: After the equipment is started, the sanitary napkin is sent into the working area inside the protective box (7) by the belt conveyor (2). First, the self-locking hydraulic press (31) of the embossing component (3) drives the rolling wheel (34) to press down. At the same time, the motor (36) drives the embossing plate (35) to rotate, pressing out a specific texture on the surface of the sanitary napkin to enhance the adhesion of the glue. S2: Subsequently, the sanitary napkin adjustment component (4) positions the sanitary napkin through the infrared detector of the suction cup (412), the negative pressure box (45) starts to adsorb and fix, the self-locking hydraulic press II (42) pushes the cross mounting plate (43) to lift and adjust the height, and the motor II (410) drives the suction cup (412) to rotate through the meshing of gear II (411) and gear I (49) to achieve multi-angle positioning of the sanitary napkin. S3: The motor three (52) of the spraying assembly (5) drives the threaded rod (53) to rotate, which drives the movable mounting plate (54) to move horizontally along the limit slide bar (516) to above the sanitary napkin. The self-locking electric telescopic rod (55) lowers the mounting frame (57), and the damping rod (58) and rubber pad (59) buffer and position, while fixing the sanitary napkin to be sprayed. The infrared detection head (511) of the multi-way solenoid valve (510) monitors the spraying distance. The water pump (514) draws glue from the storage box (513), conveys it through the conveying pipe (515), and sprays it accurately onto the embossed surface through the nozzle (512). Finally, the sanitary napkin is sent to the mounting frame three (8) below by the belt conveyor (2), and the hot air blower (9) performs hot air drying and curing. S4: After the spraying is completed, the cleaning tank (62) of the cleaning component (6) guides the spraying device into the cleaning device through the infrared locator (65), the water tank (61) supplies water, the heating ring (64) heats the water temperature, and the ultrasonic vibrator (63) cleans the residual adhesive from the nozzle.

Images