A wet tissue liquid dosing spraying device

Abstract

The utility model discloses a kind of wet paper towel liquid quantitative spraying devices, including rack and the conveyer belt of movable installation in rack top, the top of the conveyer belt is placed and is used for holding wet paper towel's placement tray, the top of the rack is fixedly installed with support frame, the top and bottom of the support frame are respectively provided with liquid adding tank and quantitative component;The quantitative component includes the cylinder being set in the top of support frame.It is a kind of wet paper towel liquid quantitative spraying device, piston rod is driven to move back and forth by stroke electric cylinder, cooperate the opening and closing of check valve two and check valve one to carry out negative pressure quantitative suction, it is convenient to control the liquid volume of each inhale and discharge, to realize the accurate control of wet paper towel liquid spraying amount, by adjusting stroke electric cylinder telescopic distance, piston rod can be flexibly changed in cylinder Sliding stroke, to adapt to the requirement of different specifications wet paper towel to liquid spraying amount, enhance the versatility and practicality of device.

Description

Technical Field

[0001] This utility model relates to the field of wet wipe processing technology, specifically a wet wipe liquid metering spraying device. Background Technology

[0002] Wet wipes are moist tissues used to wipe the skin. Wet wipes on the market can be roughly divided into two categories: one is disinfected itself but cannot disinfect other items; the other is disinfecting wet wipes that are not only disinfected themselves but can also disinfect other items. During the production process, wet wipes are individually added with liquid. However, after going through multiple processes and in a factory with relatively high temperatures, the moisture in the wet wipes will evaporate relatively quickly. Therefore, it is necessary to add liquid to the wet wipes before packaging to keep them moist. The existing patent authorization announcement number CN217499667U discloses a double-sided quantitative liquid dispensing device for wet wipe production. The device involves a support plate that carries the wet wipes contacting a connecting rod, which moves the connecting rod. The connecting rod stretches a rubber block and moves a rack. When the rack moves, it drives a gear to rotate. Under the action of the rotating shaft, the ball rotates, allowing the liquid to flow into the feed pipe. This ensures that the liquid dispensing mechanism can function when the wet wipes are at the bottom of the liquid dispensing tank, which is beneficial for automatically controlling the addition of liquid and avoiding waste of liquid. When using the above-mentioned patent, if the viscosity of the added liquid changes, such as in baby wipes containing thickeners, or if the amount of liquid added varies when adding liquid to wipes of different thicknesses and sizes, deviations in the amount of liquid added may occur, resulting in uneven moisture content in the wipes. Utility Model Content

[0003] The purpose of this invention is to provide a wet wipe liquid metering spraying device to solve the problem in the above-mentioned background technology that when the viscosity of the added liquid changes, such as when adding liquid to baby wipes containing thickeners, or when adding liquid to wet wipes of different thicknesses and sizes, the amount of liquid added is easily deviated, resulting in uneven wet wipe humidity.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wet wipe liquid metering spraying device, comprising a frame and a conveyor belt movably mounted on the top of the frame, a tray for holding wet wipes being placed on the top of the conveyor belt, a support frame being fixedly mounted on the top of the frame, and a liquid filling tank and a metering component being respectively provided on the top and bottom of the support frame; the metering component includes a cylinder disposed on the top of the support frame, a one-way valve one and a one-way valve two being fixedly mounted on the front and front ends of the top of the cylinder, respectively, an inlet pipe connected to the liquid filling tank being fixedly connected to the top of the one-way valve one, an outlet pipe being fixedly connected to the front side of the one-way valve two, and a spray head being fixedly connected to the other end of the outlet pipe, a piston rod being slidably mounted inside the cylinder, a stroke electric cylinder being fixedly mounted on the outside of the cylinder, and a connecting block being fixedly mounted at the rear end of the stroke electric cylinder and the piston rod.

[0005] Preferably, the spray head is arranged vertically downwards.

[0006] Preferably, the cylinder is made of a transparent material, and scale markings are provided on the outer wall of the cylinder, and an observation port is provided on the side of the support frame.

[0007] Preferably, a fixing block is fixedly installed at the bottom of the support frame, and the cylinder is fixedly installed on the inner side of the fixing block.

[0008] Preferably, an infrared sensor located in front of the spray head is fixedly installed at the top of the support frame, a touch sensor is fixedly installed at the rear side of the cylinder, a contact corresponding to the touch sensor is fixedly installed on the outside of the connecting block, electric push rods are fixedly installed on both the left and right sides of the support frame, and a positioning rod is fixedly installed on the inner side of the electric push rod.

[0009] Preferably, the positioning rod has a "V" shaped structure.

[0010] Preferably, a controller is provided on the rear side of the liquid filling tank, which is electrically connected to the conveyor belt, infrared sensor, touch sensor and electric push rod respectively.

[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. The piston rod can be driven to move back and forth by the stroke electric cylinder. In conjunction with the opening and closing of one-way valve 2 and one-way valve 1, negative pressure quantitative suction is performed, which makes it easy to control the volume of liquid sucked in and discharged each time. This allows for precise control of the liquid spraying amount of wet wipes. By adjusting the extension and retraction distance of the stroke electric cylinder, the sliding stroke of the piston rod in the cylinder can be flexibly changed to adapt to the liquid spraying requirements of different specifications of wet wipes, thus enhancing the versatility and practicality of the device. 2. By controlling the conveyor belt, infrared sensor, touch sensor, and electric push rod, it is easy to add liquid to the wet wipes conveyed on the conveyor belt, improve the automation effect, reduce manual operation, and improve the overall efficiency and stability of liquid spraying of wet wipes. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural schematic diagram of the installation position of the infrared sensor of this utility model; Figure 3 This is a bottom view of the cylindrical structure of this utility model; Figure 4 This is a cross-sectional structural diagram of the cylindrical part of this utility model; Figure 5 This is a schematic diagram of the structure of the touch sensor and contact of this utility model.

[0013] In the diagram: 1. Frame; 2. Conveyor belt; 3. Support frame; 31. Observation port; 4. Liquid filling tank; 5. Quantitative component; 51. Fixing block; 52. Cylinder; 53. One-way valve 1; 54. Liquid inlet pipe; 55. One-way valve 2; 56. Liquid outlet pipe; 57. Spray head; 58. Piston rod; 59. Stroke cylinder; 510. Connecting block; 511. Infrared sensor; 512. Touch sensor; 513. Contact; 514. Electric push rod; 515. Positioning rod; 6. Placement tray. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4This utility model provides a technical solution: a wet wipe liquid metering spraying device, including a frame 1 and a conveyor belt 2 movably installed on the top of the frame 1. A tray 6 for holding wet wipes is placed on the top of the conveyor belt 2. A support frame 3 is fixedly installed on the top of the frame 1. A liquid filling tank 4 and a metering component 5 are respectively provided on the top and bottom of the support frame 3. The metering component 5 includes a cylinder 52 disposed on the top of the support frame 3. A one-way valve 1 53 and a one-way valve 2 are fixedly installed on the front and front ends of the top of the cylinder 52, respectively. 55. A liquid inlet pipe 54 connected to the liquid filling tank 4 is fixedly connected to the top of one-way valve 53. A liquid outlet pipe 56 is fixedly connected to the front side of one-way valve 55. A spray head 57 is fixedly connected to the other end of the liquid outlet pipe 56. A piston rod 58 is slidably installed inside the cylinder 52. A stroke electric cylinder 59 is fixedly installed on the outside of the cylinder 52. A connecting block 510 is fixedly installed at the rear end of the stroke electric cylinder 59 and the piston rod 58. The stroke electric cylinder 59 can be model STMB-L-100. The extension of the stroke electric cylinder 59... The compression motion causes the connecting block 510 and piston rod 58 to slide inside the cylinder 52. When the stroke cylinder 59 drives the piston rod 58 to move backward, a negative pressure is formed in the front space inside the cylinder 52, one-way valve 2 55 closes, and one-way valve 1 53 opens. Liquid in the liquid tank 4 is drawn into the cylinder 52 through the inlet pipe 54 and one-way valve 1 53. When the stroke cylinder 59 pushes the piston rod 58 forward, the pressure in the front space inside the cylinder 52 increases, one-way valve 1 53 closes, and one-way valve 2 55 opens. Liquid flows through the one-way valve... Valve 55 and liquid outlet pipe 56 spray a quantitative amount of liquid from spray head 57 onto the wet paper towels placed in tray 6 below. The negative pressure quantitative suction allows for easy control of the volume of liquid drawn in and discharged each time, thereby achieving precise control of the liquid spraying amount of the wet paper towels. By adjusting the extension and retraction distance of the stroke cylinder 59, the sliding stroke of the piston rod 58 in the cylinder 52 can be flexibly changed, thereby changing the amount of liquid drawn in and discharged in a single operation to adapt to the liquid spraying requirements of different specifications of wet paper towels, enhancing the versatility and practicality of the device.

[0016] The spray head 57 is set vertically downwards to spray the liquid in a fan shape, avoiding the problem of uneven liquid distribution.

[0017] The cylinder 52 is made of transparent material, such as acrylic, which has good chemical stability and can withstand the corrosion of a variety of common liquids. The outer wall of the cylinder 52 is marked with scale markings, and the side of the support frame 3 is provided with an observation port 31. The liquid level change inside the cylinder 52 can be directly observed through the observation port 31. Combined with the scale markings, the amount of liquid drawn in and discharged can be read intuitively, which is convenient for operators to monitor the quantitative spraying process in real time, promptly detect and adjust possible metering deviations, and further improve the stability and reliability of the device operation.

[0018] A fixing block 51 is fixedly installed at the bottom of the support frame 3. The cylinder 52 is fixedly installed on the inner side of the fixing block 51. The inner wall of the fixing block 51 is tightly fitted with the outer wall of the cylinder 52 to ensure stable installation. The fixing block 51 is made of rigid PVC material, which is lightweight, high-strength and corrosion-resistant. It can provide a stable support foundation for the cylinder 52 and avoid rust damage due to long-term contact with liquid, thus extending the overall service life of the device.

[0019] Please see Figure 2 , Figure 3 and Figure 5 An infrared sensor 511 is fixedly installed at the top inside the support frame 3, located in front of the spray head 57. A touch sensor 512 is fixedly installed on the rear side of the cylinder 52. A contact 513 corresponding to the touch sensor 512 is fixedly installed on the outside of the connecting block 510. Electric push rods 514 are fixedly installed on both the left and right sides of the support frame 3. A positioning rod 515 is fixedly installed on the inner side of the electric push rod 514. When the wet paper towel is delivered to the area below the spray head 57, the infrared sensor 511 can detect the position signal of the wet paper towel and... The signal is transmitted to the controller, which then activates the electric push rod 514 to push the positioning rod 515 inward until the positioning rod 515 contacts the two sides of the placement tray 6 for placing wet wipes, achieving precise positioning. During the piston movement inside the cylinder 52, when the connecting block 510 drives the contact 513 to the position of the touch sensor 512, the touch sensor 512 will trigger a signal to confirm the completion of the liquid addition operation and ensure that the liquid dosage sprayed each time is accurate, thereby reducing manual operation and facilitating batch processing.

[0020] The positioning rod 515 has a "V" shaped structure. Utilizing the guiding effect of the "V" shape, the positioning rod 515 moves inward and automatically centers and calibrates the placement tray 6. The spray head 57 corresponds to the middle position of the positioning rod 515, ensuring that the liquid can be accurately sprayed on the center area of ​​the wet paper towel, thus improving the uniformity and accuracy of the spray.

[0021] A controller is installed on the rear side of the liquid filling tank 4, which is electrically connected to the conveyor belt 2, infrared sensor 511, touch sensor 512, and electric push rod 514. The controller can receive real-time signals from each component and regulate the running speed of the conveyor belt 2, the detection sensitivity of the infrared sensor 511, the trigger signal of the touch sensor 512, and the extension and retraction of the electric push rod 514. The controller first drives the conveyor belt 2 to transport the placement tray 6 at a set speed. After the infrared sensor 511 detects the placement tray 6 in place, it immediately coordinates the electric push rod 514 to perform a positioning action. After the touch sensor 512 confirms that the liquid dosage is up to standard, the controller then controls the conveyor belt 2 to transport the completed placement tray 6, forming an automated operation and improving the overall efficiency and stability of wet wipe liquid spraying.

[0022] Among them, the model of conveyor belt 2 can be T5-1000, the model of infrared sensor 511 can be E3F-DS30C4, the model of touch sensor 512 can be TZ-3111, the model of electric push rod 514 can be DTZ100, and the model of controller can be STM32F103RCT6.

[0023] Working principle: By placing the wet wipes tray 6 on the conveyor belt 2, the tray 6 is transported from the front of the support frame 3 to the inside of the support frame 3 by the conveyor belt 2. When the tray 6 passes under the infrared sensor 511, the tray 6 receives the reflected infrared light, stops the conveyor belt 2, and pushes the positioning rod 515 inward by the electric push rods 514 on both sides, so that the positioning rod 515 clamps the tray 6 in the center from both sides and keeps the tray 6 in the center position below the spray head 57. The extension of the stroke cylinder 59 causes the connecting block 510 and the piston rod 58 connected to the connecting block 510 to move backward. The backward movement of the piston rod 58 creates a negative pressure inside the cylinder 52, causing the one-way valve 53 to open and draw the additive liquid from the liquid tank 4 through the liquid inlet pipe 54. The amount of liquid drawn is controlled by controlling the movement of the stroke cylinder 59. Subsequently, the retraction of the stroke cylinder 59 resets the piston rod 58, pushing the additive liquid in the cylinder 52 forward and forcing the one-way valve 55 to open, allowing the additive liquid to flow out from the liquid outlet. The spray nozzle 57 at the end of pipe 56 evenly sprays wet wipes onto the placement tray 6 directly below. When the contact 513 triggers the touch sensor 512, the liquid added to the cylinder 52 is pushed clean, completing the quantitative liquid addition operation. Subsequently, the electric push rod 514 drives the positioning rod 515 to reset, and the conveyor belt 2 is restarted to transport the placement tray 6 backward for easy collection. By adjusting the stroke of the stroke cylinder 59, the liquid addition amount can be easily adjusted, and the influence of liquid viscosity can be reduced to ensure accurate liquid addition. The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wet wipe liquid metering spraying device, comprising a frame (1) and a conveyor belt (2) movably mounted on the top of the frame (1), wherein a tray (6) for holding wet wipes is placed on the top of the conveyor belt (2), characterized in that: A support frame (3) is fixedly installed on the top of the frame (1), and a liquid filling tank (4) and a metering component (5) are respectively provided on the top and bottom of the support frame (3). The quantitative component (5) includes a cylinder (52) disposed at the top of the support frame (3). A one-way valve (53) and a one-way valve (55) are fixedly installed at the front and front ends of the top of the cylinder (52), respectively. An inlet pipe (54) connected to the liquid tank (4) is fixedly connected to the top of the one-way valve (53). An outlet pipe (56) is fixedly connected to the front side of the one-way valve (55). A spray head (57) is fixedly connected to the other end of the outlet pipe (56). A piston rod (58) is slidably installed inside the cylinder (52). A stroke electric cylinder (59) is fixedly installed on the outside of the cylinder (52). A connecting block (510) is fixedly installed at the rear end of the stroke electric cylinder (59) and the piston rod (58).

2. The wet wipe liquid metering spraying device according to claim 1, characterized in that: The spray head (57) is positioned vertically downwards.

3. The wet wipe liquid metering spraying device according to claim 1, characterized in that: The cylinder (52) is made of transparent material, and scale markings are provided on the outer side wall of the cylinder (52). An observation port (31) is provided on the side of the support frame (3).

4. The wet wipe liquid metering spraying device according to claim 3, characterized in that: A fixing block (51) is fixedly installed at the bottom of the support frame (3), and the cylinder (52) is fixedly installed on the inner side of the fixing block (51).

5. The wet paper towel liquid metering spraying device according to claim 1, characterized in that: An infrared sensor (511) located in front of the spray head (57) is fixedly installed on the top of the support frame (3). A touch sensor (512) is fixedly installed on the rear side of the cylinder (52). A contact (513) corresponding to the touch sensor (512) is fixedly installed on the outside of the connecting block (510). Electric push rods (514) are fixedly installed on both the left and right sides of the support frame (3). A positioning rod (515) is fixedly installed on the inner side of the electric push rod (514).

6. The wet wipe liquid metering spraying device according to claim 5, characterized in that: The positioning rod (515) has a "V" shaped structure.

7. The wet wipe liquid metering spraying device according to claim 5, characterized in that: The rear side of the liquid tank (4) is equipped with a controller that is electrically connected to the conveyor belt (2), infrared sensor (511), touch sensor (512) and electric push rod (514).

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