A fragrance spraying device for hygiene products

Abstract

The application provides a fragrance spraying device for sanitary products, which comprises a fragrance storage tank, a control module, a motion module and a sensing module; the output end of the control module is connected with the input end of the motion module, and the output end of the sensing module is connected with the input end of the control module; the control module inputs digital signals through the sensing module, and adjusts the motion of the motion module according to the digital signals; the liquid level sensor and the gravity sensor are used to monitor the spraying volume of the fragrance and the total mass of the fragrance absorbed by the sanitary products in real time, so that the fragrance can be uniformly sprayed on the surface of the sanitary products; during the production process, the operation state of the servo motor, the lifting system and the track driving system can be automatically adjusted according to the monitoring results, so that the production efficiency is improved; in addition, the technical scheme can effectively reduce the generation of defective products caused by uneven fragrance spraying.

Description

Technical Field

[0001] This invention proposes a fragrance spraying device for hygiene products, belonging to the field of intelligent control in the production of hygiene products. Background Technology

[0002] Sanitary napkins are an essential item for every woman for 40 years of her life. Globally, 82% of women suffer from gynecological diseases to varying degrees, and 63% of these diseases are caused by the use of substandard sanitary napkins. High-quality sanitary napkins can help manage gynecological conditions; inferior sanitary napkins are the root cause of various gynecological diseases. Sanitary napkins are sometimes like a bacterial bomb that women carry with them, capable of triggering gynecological diseases of varying severity at any time.

[0003] In the production of hygiene products, the even spraying of fragrance is essential. If the fragrance is not sprayed evenly on the surface of the hygiene product, excessive fragrance may accumulate in one place, leading to a poor user experience or even allergic reactions. In actual production, techniques such as increasing the distance between the nozzle and the hygiene product and increasing the flow rate of the fragrance at the nozzle position are often used to expand the fragrance diffusion range in order to achieve the technical effect of even fragrance spraying. However, as the angle of the fragrance and the spray distance increase, the amount of fragrance lost may be too large due to the angle and the volatility of the fragrance. This will increase the loss and cost of production for enterprises and may also cause certain pollution to the working environment. Summary of the Invention

[0004] This invention provides a fragrance spraying device for hygiene products, which solves the problems arising in the fragrance spraying of existing technologies. The technical solution adopted is as follows:

[0005] A fragrance spraying device for hygiene products includes: a fragrance storage tank, a control module, a motion module, and a sensing module; the output terminal of the control module is connected to the input terminal of the motion module, and the output terminal of the sensing module is connected to the input terminal of the control module; the control module inputs digital signals through the sensing module, and the control module adjusts the motion of the motion module according to the digital signals.

[0006] Preferably, the control module includes a PLC control system; the motion module includes a magnetic pump, a lifting system, and a track drive system; the sensing module includes a liquid level sensor and a gravity sensor; the output terminal of the PLC control system is connected to the magnetic pump, the lifting system, and the track drive system; the magnetic pump has a built-in servo motor, and the PLC control system can control the servo motor speed, the lifting height of the lifting system, and the operation of the track drive system; the lifting system consists of an electromagnetic lifting rod, which is located at the bottom of the track drive system for adjusting the bottom of the track drive system; the liquid level sensor is located inside the fragrance storage tank for real-time monitoring of the volume of fragrance sprayed out; the gravity sensor is located on the track drive system, and a sanitary product is placed on the gravity sensor for real-time monitoring of the total mass of the sanitary product.

[0007] Preferably, the method by which the PLC control system controls the motion module includes:

[0008] The PLC control system controls the track drive system to deliver the sanitary products to the nozzle below the fragrance storage tank.

[0009] The preset total mass threshold that hygiene products and absorbed fragrances need to reach;

[0010] The system controls a servo motor to drive a magnetic pump, which then sprays out the fragrance.

[0011] The gravity sensor monitors the total mass of the hygiene products and absorbed fragrance in real time and generates a digital signal to send to the PLC control system.

[0012] When the digital signal emitted by the gravity sensor meets the preset total mass threshold, the PLC control system stops the servo motor from working.

[0013] The tracked conveyor system continuously transports the next hygiene product to below the nozzle, thus creating a cycle.

[0014] Positioners and photoelectric sensors can be installed on the tracked conveyor system. Positioners ensure the correct position of the hygiene product on the track, preventing it from shifting during transport. Photoelectric sensors monitor whether the hygiene product has reached the predetermined position below the nozzle. When the hygiene product reaches the designated position, the photoelectric sensor sends a signal to the PLC control system.

[0015] Upon receiving a signal from the photoelectric sensor, the PLC control system will take corresponding actions. First, it will pause the conveyor belt system, bringing the hygiene products to a standstill below the nozzle; then, it will start the servo motor to drive the magnetic pump to spray the fragrance.

[0016] After fragrance spraying is completed, the conveyor belt automatically starts: When the total mass of fragrance absorbed by the sanitary products reaches a preset threshold, the gravity sensor sends a signal to the PLC control system. Upon receiving the signal, the PLC control system shuts down the servo motor and stops the magnetic pump. Then, the PLC control system restarts the conveyor belt system, sending the fragrance-sprayed sanitary products out of the nozzle area and delivering the next sanitary product below the nozzle; this cycle continues, ensuring continuous and efficient production.

[0017] The above design enables the precise delivery of hygiene products to the nozzle via a track and automatic track activation after each spray, improving production efficiency and product quality. At the same time, this automated operation can reduce reliance on manual operation, minimize human error, and further optimize the production process.

[0018] Preferably, the PLC control system calculates the loss value of a single fragrance spray through the digital signal transmitted by the sensor module, sets a loss threshold, compares the loss value with the loss threshold, and when the loss value is greater than the loss threshold, reduces the loss of a single fragrance spray by adjusting the operation mode of the motion module.

[0019] Preferably, the method for calculating the loss value includes using the following formula for fragrance loss value:

[0020]

[0021] Where Z is the fragrance loss value; m2 is the total mass of the hygiene products and absorbed fragrance, that is, the mass sensed by the gravity sensor after spraying; m1 is the mass of the hygiene products, that is, the mass sensed by the gravity sensor before spraying; h1 is the initial liquid level height; h2 is the liquid level height after a single fragrance spray; and s is the transverse planar area of ​​the can. This refers to the density of the fragrance.

[0022] Preferably, the comparison method between the loss value and the loss threshold is calculated using the following comparison formula:

[0023] a=1(Z<b);0(Z> b);

[0024] Where a is the comparison value; b is the preset fragrance loss threshold; when a is 1, no adjustment is needed to the motion module; when a is 0, the motion module is adjusted to reduce fragrance loss per spray.

[0025] Preferably, the motion module adjustment method includes:

[0026] In the initial position, the electromagnetic lifting rod is at the bottom of its travel, and the servo motor speed is adjusted to the maximum value of its rated speed;

[0027] The preset distance the electromagnetic lifting rod can rise in a single operation;

[0028] Preset adjustment value for single-cycle servo motor deceleration;

[0029] When the calculated loss value exceeds the loss threshold, the PLC control system first commands the track drive system to perform a transmission to deliver the next hygiene product to the nozzle.

[0030] The electromagnetic lifting rod is commanded to perform one upward movement at a preset single upward distance value;

[0031] The servo motor is started to drive the magnetic pump. At this time, the speed of the servo motor is reduced by the preset single speed reduction adjustment value.

[0032] Perform another comparison between the loss value and the loss threshold.

[0033] Preferably, after comparing the fragrance loss value with the loss threshold again, if the comparison value a is 1, then there is no need to make the motion module another adjustment, and the current motion is maintained to carry out the fragrance spraying work.

[0034] If the comparison value a is 0, the motion module is adjusted again until the comparison value a is 1 after comparing the fragrance loss value with the loss threshold.

[0035] By calculating fragrance loss values ​​in real time and comparing them with preset loss thresholds, fragrance waste can be effectively reduced. This helps conserve resources, lower production costs, and is also beneficial to the environment.

[0036] By adjusting the motion module, the spraying process can be optimized according to actual conditions, improving production efficiency. This will help increase the overall capacity and efficiency of the production line.

[0037] By adjusting the electromagnetic lifting rod and servo motor in real time, the fragrance spraying process can be made more stable, thereby improving product quality.

[0038] The specific method for achieving the electromagnetic lifting rod rising according to a preset value and descending according to a preset rotation speed is as follows:

[0039] When the loss value (Z) exceeds the loss threshold (b), the PLC control system adjusts the motion module to reduce the loss per fragrance spray. Specific adjustment methods include:

[0040] The preset single-rise distance of the electromagnetic lifting rod: When the loss value exceeds the loss threshold, the PLC control system will command the electromagnetic lifting rod to rise once according to the preset single-rise distance value. This adjusts the distance between the nozzle and the sanitary product, thereby reducing fragrance spray loss.

[0041] Preset adjustment value for single-cycle servo motor speed reduction: When the loss value exceeds the loss threshold, the PLC control system will start the servo motor and reduce its speed according to the preset single-cycle speed reduction adjustment value. This reduces the operating speed of the magnetic pump, thereby reducing fragrance spraying loss.

[0042] The reason why the electromagnetic lifting rod rising or the servo motor speed decreasing reduces fragrance consumption is as follows:

[0043] The electromagnetic lifting rod rises: By adjusting the distance between the nozzle and the sanitary product, the fragrance can be sprayed over a shorter distance, thereby reducing the evaporation of the fragrance and reducing spray loss;

[0044] Servo motor speed reduction: By adjusting the speed of the servo motor, the angle at which the nozzle sprays fragrance is reduced, allowing the fragrance to be sprayed more concentrated on the hygiene products and reducing the chance of fragrance being sprayed into non-hygiene product areas.

[0045] Beneficial effects of this invention:

[0046] 1. By combining control, motion, and sensing modules, precise control of the fragrance spraying process for hygiene products is achieved. Liquid level and gravity sensors are used to monitor the sprayed volume of fragrance and the total mass of fragrance absorbed by the hygiene products in real time, ensuring uniform spraying of fragrance onto the surface of the products. During production, the equipment can automatically adjust the operating status of the servo motor, lifting system, and track drive system based on monitoring results, thereby improving production efficiency. Furthermore, this technology effectively reduces the generation of defective products caused by uneven fragrance spraying, improving product quality. In actual production, the equipment can complete the fragrance spraying task for a large number of hygiene products in a short time, meeting diverse production needs and creating higher economic benefits for enterprises.

[0047] 2. By comparing the loss value with the loss threshold, the operation mode of the motion module can be effectively adjusted to reduce fragrance loss. When the loss value exceeds the preset loss threshold, the PLC control system will adjust the motion module based on the calculation results, such as adjusting the rising distance of the electromagnetic lifting rod and the speed of the servo motor, to reduce fragrance loss. In this way, the equipment can reduce the amount of fragrance used while ensuring product quality, thereby reducing production costs. In addition, because the equipment uses fragrance more precisely and economically during the spraying process, it can reduce the volatilization of fragrance during production, thereby reducing pollution to the working environment, improving air quality at the production site, and playing a positive role in protecting the health of employees. Attached Figure Description

[0048] Figure 1 A schematic diagram of the main structure of a fragrance spraying equipment for hygiene products.

[0049] Figure 2 1. System block diagram of fragrance spraying equipment for hygiene products.

[0050] Figure 3 A flowchart for the production of fragrance spraying equipment for hygiene products. Detailed Implementation

[0051] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0052] Example 1:

[0053] A fragrance spraying device for hygiene products includes: a fragrance storage tank, a control module, a motion module, and a sensing module; the output terminal of the control module is connected to the input terminal of the motion module, and the output terminal of the sensing module is connected to the input terminal of the control module; the control module inputs digital signals through the sensing module, and the control module adjusts the motion of the motion module according to the digital signals.

[0054] Preferably, the control module includes a PLC control system; the motion module includes a magnetic pump, a lifting system, and a track drive system; the sensing module includes a liquid level sensor and a gravity sensor; the output terminal of the PLC control system is connected to the magnetic pump, the lifting system, and the track drive system; the magnetic pump has a built-in servo motor, and the PLC control system can control the servo motor speed, the lifting height of the lifting system, and the operation of the track drive system; the lifting system consists of an electromagnetic lifting rod, which is located at the bottom of the track drive system for adjusting the bottom of the track drive system; the liquid level sensor is located inside the fragrance storage tank for real-time monitoring of the volume of fragrance sprayed out; the gravity sensor is located on the track drive system, and a sanitary product is placed on the gravity sensor for real-time monitoring of the total mass of the sanitary product.

[0055] Preferably, the method by which the PLC control system controls the motion module includes:

[0056] The PLC control system controls the track drive system to deliver the sanitary products to the nozzle below the fragrance storage tank.

[0057] The preset total mass threshold that hygiene products and absorbed fragrances need to reach;

[0058] The system controls a servo motor to drive a magnetic pump, which then sprays out the fragrance.

[0059] The gravity sensor monitors the total mass of the hygiene products and absorbed fragrance in real time and generates a digital signal to send to the PLC control system.

[0060] When the digital signal emitted by the gravity sensor meets the preset total mass threshold, the PLC control system stops the servo motor from working.

[0061] The tracked conveyor system continuously transports the next hygiene product to below the nozzle, thus creating a cycle.

[0062] Positioners and photoelectric sensors can be installed on the tracked conveyor system. Positioners ensure the correct position of the hygiene product on the track, preventing it from shifting during transport. Photoelectric sensors monitor whether the hygiene product has reached the predetermined position below the nozzle. When the hygiene product reaches the designated position, the photoelectric sensor sends a signal to the PLC control system.

[0063] Upon receiving a signal from the photoelectric sensor, the PLC control system will take corresponding actions. First, it will pause the conveyor belt system, bringing the hygiene products to a standstill below the nozzle; then, it will start the servo motor to drive the magnetic pump to spray the fragrance.

[0064] After fragrance spraying is completed, the conveyor belt automatically starts: When the total mass of fragrance absorbed by the sanitary products reaches a preset threshold, the gravity sensor sends a signal to the PLC control system. Upon receiving the signal, the PLC control system shuts down the servo motor and stops the magnetic pump. Then, the PLC control system restarts the conveyor belt system, sending the fragrance-sprayed sanitary products out of the nozzle area and delivering the next sanitary product below the nozzle; this cycle continues, ensuring continuous and efficient production.

[0065] The above design enables the precise delivery of hygiene products to the nozzle via a track and automatic track activation after each spray, improving production efficiency and product quality. At the same time, this automated operation can reduce reliance on manual operation, minimize human error, and further optimize the production process.

[0066] Preferably, the PLC control system calculates the loss value of a single fragrance spray through the digital signal transmitted by the sensor module, sets a loss threshold, compares the loss value with the loss threshold, and when the loss value is greater than the loss threshold, reduces the loss of a single fragrance spray by adjusting the operation mode of the motion module.

[0067] Preferably, the method for calculating the loss value includes using the following formula for fragrance loss value:

[0068]

[0069] Where Z is the fragrance loss value; m2 is the total mass of the hygiene products and absorbed fragrance, that is, the mass sensed by the gravity sensor after spraying; m1 is the mass of the hygiene products, that is, the mass sensed by the gravity sensor before spraying; h1 is the initial liquid level height; h2 is the liquid level height after a single fragrance spray; and s is the transverse planar area of ​​the can. This refers to the density of the fragrance.

[0070] Preferably, the comparison method between the loss value and the loss threshold is calculated using the following comparison formula:

[0071] a=1(Z<b);0(Z> b);

[0072] Where a is the comparison value; b is the preset fragrance loss threshold; when a is 1, no adjustment is needed to the motion module; when a is 0, the motion module is adjusted to reduce fragrance loss per spray.

[0073] Preferably, the motion module adjustment method includes:

[0074] In the initial position, the electromagnetic lifting rod is at the bottom of its travel, and the servo motor speed is adjusted to the maximum value of its rated speed;

[0075] The preset distance the electromagnetic lifting rod can rise in a single operation;

[0076] Preset adjustment value for single-cycle servo motor deceleration;

[0077] When the calculated loss value exceeds the loss threshold, the PLC control system first commands the track drive system to perform a transmission to deliver the next hygiene product to the nozzle.

[0078] The electromagnetic lifting rod is commanded to perform one upward movement at a preset single upward distance value;

[0079] The servo motor is started to drive the magnetic pump. At this time, the speed of the servo motor is reduced by the preset single speed reduction adjustment value.

[0080] Perform another comparison between the loss value and the loss threshold.

[0081] Preferably, after comparing the fragrance loss value with the loss threshold again, if the comparison value a is 1, then there is no need to make the motion module another adjustment, and the current motion is maintained to carry out the fragrance spraying work.

[0082] If the comparison value a is 0, the motion module is adjusted again until the comparison value a is 1 after comparing the fragrance loss value with the loss threshold.

[0083] By calculating fragrance loss values ​​in real time and comparing them with preset loss thresholds, fragrance waste can be effectively reduced. This helps conserve resources, lower production costs, and is also beneficial to the environment.

[0084] By adjusting the motion module, the spraying process can be optimized according to actual conditions, improving production efficiency. This will help increase the overall capacity and efficiency of the production line.

[0085] By adjusting the electromagnetic lifting rod and servo motor in real time, the fragrance spraying process can be made more stable, thereby improving product quality.

[0086] The specific method for achieving the electromagnetic lifting rod rising according to a preset value and descending according to a preset rotation speed is as follows:

[0087] When the loss value (Z) exceeds the loss threshold (b), the PLC control system adjusts the motion module to reduce the loss per fragrance spray. Specific adjustment methods include:

[0088] The preset single-rise distance of the electromagnetic lifting rod: When the loss value exceeds the loss threshold, the PLC control system will command the electromagnetic lifting rod to rise once according to the preset single-rise distance value. This adjusts the distance between the nozzle and the sanitary product, thereby reducing fragrance spray loss.

[0089] Preset adjustment value for single-cycle servo motor speed reduction: When the loss value exceeds the loss threshold, the PLC control system will start the servo motor and reduce its speed according to the preset single-cycle speed reduction adjustment value. This reduces the operating speed of the magnetic pump, thereby reducing fragrance spraying loss.

[0090] The reason why the electromagnetic lifting rod rising or the servo motor speed decreasing reduces fragrance consumption is as follows:

[0091] The electromagnetic lifting rod rises: By adjusting the distance between the nozzle and the sanitary product, the fragrance can be sprayed over a shorter distance, thereby reducing the evaporation of the fragrance and reducing spray loss;

[0092] Servo motor speed reduction: By adjusting the speed of the servo motor, the angle at which the nozzle sprays fragrance is reduced, allowing the fragrance to be sprayed more concentrated on the hygiene products and reducing the chance of fragrance being sprayed into non-hygiene product areas.

Claims

1. A fragrance spraying device for hygiene products, characterized in that, include: Fragrance storage tank, control module, motion module, and sensing module; The output terminal of the control module is connected to the input terminal of the motion module, and the output terminal of the sensing module is connected to the input terminal of the control module. The control module inputs digital signals through the sensing module, and adjusts the motion of the motion module according to the digital signals. The calculation method for loss value includes using the following formula for fragrance loss value: Z=(m2-m1)÷[(h1-h2)×s×ƿ] Where Z is the fragrance loss value; m2 is the total mass of the hygiene product and the absorbed fragrance, i.e., the mass sensed by the gravity sensor after spraying; m1 is the mass of the hygiene product, i.e., the mass sensed by the gravity sensor before spraying; h1 is the initial liquid level height; h2 is the liquid level height after a single fragrance spray; s is the horizontal plane area of ​​the can; and ƿ is the fragrance density. The control module includes a PLC control system; The motion module includes a magnetic pump, a lifting system, and a track drive system; The sensing module includes a liquid level sensor and a gravity sensor; The output terminal of the PLC control system is connected to the magnetic pump, the lifting system, and the track drive system; the magnetic pump has a built-in servo motor, and the PLC control system can control the speed of the servo motor, the lifting height of the lifting system, and the operation of the track drive system. The lifting system consists of an electromagnetic lifting rod, which is located at the bottom of the track drive system for adjusting the bottom of the track drive system. The liquid level sensor is installed inside the fragrance storage tank to monitor the volume of fragrance being sprayed in real time. The gravity sensor is installed on the track drive system, and a sanitary product is placed on the gravity sensor. The gravity sensor is used to monitor the total mass of the sanitary product in real time. The method by which the PLC control system controls the motion module includes: The PLC control system controls the track drive system to deliver the sanitary products to the nozzle below the fragrance storage tank. The preset total mass threshold that hygiene products and absorbed fragrances need to reach; The system controls a servo motor to drive a magnetic pump, which then sprays out the fragrance. The gravity sensor monitors the total mass of the hygiene products and absorbed fragrance in real time and generates a digital signal to send to the PLC control system. When the digital signal emitted by the gravity sensor meets the preset total mass threshold, the PLC control system stops the servo motor from working. The tracked conveyor system continuously transports the next hygiene product to below the nozzle, thus creating a cycle.

2. The fragrance spraying device for hygiene products according to claim 1, characterized in that, The PLC control system calculates the loss value of a single fragrance spray by transmitting digital signals from the sensor module, sets a loss threshold, compares the loss value with the loss threshold, and reduces the loss of a single fragrance spray by adjusting the operation mode of the motion module when the loss value is greater than the loss threshold.

3. The fragrance spraying device for hygiene products according to claim 2, characterized in that, The comparison between the loss value and the loss threshold is calculated using the following comparison formula. a=1 (Z)<b);0(Z> b) Where a is the comparison value; b is the preset fragrance loss threshold; when a is 1, no adjustment is needed to the motion module; when a is 0, the motion module is adjusted to reduce fragrance loss per spray.

4. The fragrance spraying device for hygiene products according to claim 3, characterized in that, The motion module adjustment method includes: In the initial position, the electromagnetic lifting rod is at the bottom of its travel, and the servo motor speed is adjusted to the maximum value of its rated speed; The preset distance the electromagnetic lifting rod can rise in a single operation; Preset adjustment value for single-cycle servo motor deceleration; When the calculated loss value exceeds the loss threshold, the PLC control system first commands the track drive system to perform a transmission to deliver the next hygiene product to the nozzle. The electromagnetic lifting rod is commanded to perform one upward movement at a preset single upward distance value; The servo motor is started to drive the magnetic pump. At this time, the speed of the servo motor is reduced by the preset single speed reduction adjustment value. Perform another comparison between the loss value and the loss threshold.

5. The fragrance spraying device for hygiene products according to claim 4, characterized in that, After comparing the fragrance loss value with the loss threshold again, if the comparison value a is 1, there is no need to make the motion module adjustment again. Maintain the current motion and carry out the fragrance spraying work. If the comparison value a is 0, the motion module is adjusted again until the comparison value a is 1 after comparing the fragrance loss value with the loss threshold.

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