A wet wipe liquid filling device for wet wipe processing

Abstract

The application discloses a wet-wipe liquid filling equipment for wet-wipe processing and belongs to the technical field of filling equipment. The wet-wipe liquid filling equipment comprises a liquid storage tank and a plate chain assembly line arranged below the liquid storage tank. A plurality of first nozzles and second nozzles are arranged on the liquid storage tank. The plate chain assembly line comprises a chain plate. A plurality of rotating bases corresponding to the first nozzles and the second nozzles are rotatably connected to the chain plate. The rotating bases are used for placing wet-wipe cylinders. A driving unit is further arranged on the chain plate and used for driving the rotating bases to drive the wet-wipe cylinders to rotate. The wet-wipe liquid filling equipment for wet-wipe processing can actively exert a centrifugal field on the wet-wipe cylinders between two filling steps, forcibly accelerates the radial migration of the liquid, and thus completes the penetration process in a very short time, and efficiency and quality are taken into account.

Description

Technical Field

[0001] This invention belongs to the field of filling equipment technology, and particularly relates to a wet wipe liquid filling equipment for wet wipe processing. Background Technology

[0002] As a common cleaning and care product, the production of wet wipes involves a crucial step: evenly filling a specific ratio of liquid wet wipes into a roll made of non-woven fabric or other materials. The wet wipe roll is typically placed inside a cylindrical wet wipe container for filling. The filling equipment injects the liquid wet wipes into the container through a nozzle, allowing the liquid to gradually permeate and accumulate within the wet wipe roll.

[0003] Currently, to improve filling uniformity and prevent liquid splashing, the industry commonly uses a two-stage filling method. The specific steps are as follows: First, a portion of the wet wipe liquid is poured into the wipe roll through the first set of nozzles. This filling volume is usually 50%-70% of the total quantity. Then, it is left to stand for a preset time, allowing the poured liquid to naturally penetrate into the interior of the wipe roll, causing the liquid level in the roll to drop. Finally, a second filling is performed through the second set of nozzles to replenish the remaining wet wipe liquid until the rated total filling volume is reached.

[0004] However, the above method has significant problems. First, the absorbency of wet wipe materials and the tightness of their winding vary greatly, resulting in highly unstable natural liquid penetration rates. On high-speed production lines, to ensure efficiency, the settling time between filling operations is often short. For some wet wipe rolls with slow absorption or tight winding, the liquid may not fully penetrate during the settling time, leading to insufficient liquid level drop. This results in the actual amount of liquid that can be injected during the second filling being far lower than expected, causing the total filling volume of the final product to fall short of the rated volume, severely affecting the consistency of product quality. Second, extending the settling time to ensure penetration directly slows down the entire production line, restricting production efficiency. Summary of the Invention

[0005] To address the aforementioned shortcomings, the present invention aims to provide a wet wipe liquid filling device for wet wipe processing, which can actively apply a centrifugal force field to the wet wipe tube between two filling steps, forcibly accelerating the radial migration of the liquid, thereby completing the penetration process in a very short time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wet wipe liquid filling device for wet wipe processing includes a liquid storage tank and a plate chain conveyor line disposed below it. The liquid storage tank is provided with a plurality of first nozzles and second nozzles. The plate chain conveyor line includes a chain plate, and a plurality of rotating seats corresponding to the first nozzles and second nozzles are rotatably connected to the chain plate. The rotating seats are used to hold wet wipe tubes. The chain plate is also provided with a drive unit for driving the rotating seats to rotate the wet wipe tubes.

[0008] Preferably, the drive unit is configured as a single group or multiple groups;

[0009] When the drive unit is set into multiple groups, each drive unit corresponds to each rotary seat and is connected by transmission.

[0010] When the drive unit is set as a single set, each of the rotating seats is connected to each other through transmission. The drive unit is connected to one of the rotating seats through transmission, so as to drive the other rotating seats to rotate synchronously through the rotating seat.

[0011] Preferably, when the drive unit is set as a single set, a drive shaft is also rotatably mounted on the chain plate, and a first drive wheel is fixedly sleeved on the drive shaft;

[0012] Each of the rotating seats is externally fitted with a second drive wheel, and two adjacent second drive wheels are connected to each other through transmission, and the first drive wheel is connected to one of the second drive wheels through transmission;

[0013] The drive unit is located on one side of the plate chain assembly line and is used to drive the drive shaft to rotate.

[0014] Preferably, the drive unit includes a telescopic cylinder, the output direction of which is parallel to the conveying direction of the plate chain conveyor, a retainer is fixedly connected to the output end of the telescopic cylinder, and a drive bar is movably connected to the side of the retainer near the plate chain conveyor. The drive bar can switch to a contact position or a separation position on the retainer. In the contact position, the drive bar acts on the first drive wheel, and in the separation position, the drive bar separates from the first drive wheel.

[0015] At the contact position, the telescopic cylinder drives the drive bar to move, which in turn drives the first drive wheel to rotate around its axis.

[0016] Preferably, the cage and the drive bar are connected by a telescopic connection or a rotatable connection.

[0017] Preferably, when the retainer and the drive bar are telescopically connected, a miniature electric cylinder is installed on the side wall of the retainer near the plate chain conveyor. The output end of the miniature electric cylinder is perpendicular to the conveying direction of the plate chain conveyor. The drive bar is fixedly installed on the output end of the miniature electric cylinder to realize the switching of the drive bar between the contact position and the separation position.

[0018] Preferably, when the retainer and the drive bar are rotatably connected, a rotating electromagnet is installed at the front end of the retainer, and the drive bar is fixedly connected to the output end of the rotating electromagnet, so that the drive bar can rotate around the retainer to realize the switching of the drive bar between the contact position and the separation position.

[0019] Preferably, at the contact position, the telescopic cylinder drives the drive bar to move in the opposite direction to the plate chain conveyor, so that the drive bar and the first drive wheel produce a relative translational motion in opposite directions.

[0020] Preferably, the drive unit includes an impeller and an air inlet pipe. The air inlet pipe is connected to an external air source, and an air nozzle is connected to the side wall of the air inlet pipe. The impeller is fixedly sleeved on the drive shaft. When the impeller moves to the target position, the air outlet of the air nozzle can be positioned directly opposite the blades of the impeller to drive the impeller to rotate.

[0021] Preferably, the number of air nozzles is multiple sets, and the multiple sets of air nozzles are distributed in an equidistant array along the direction of the plate chain conveyor; when the impeller moves to the position of the corresponding air nozzle, the air outlet of the air nozzle can be set directly opposite the blade of the impeller.

[0022] In summary, the technical effects and advantages of this invention are as follows:

[0023] This wet wipe liquid filling equipment can actively apply a centrifugal force field to the wet wipe tube between two filling steps, forcibly accelerating the radial migration of the liquid, thereby completing the penetration process in a very short time, balancing efficiency and quality.

[0024] In this application, the drive bar drives the first drive wheel, and precise control can be achieved by setting contact and separation positions and combining them with the rhythmic motion of the production line. When the wet wipes tube reaches the centrifuge station, the mechanism switches to the contact position, the telescopic cylinder actuates, and high-speed centrifugation is completed.

[0025] Furthermore, by generating a reverse relative translational motion between the drive bar and the first drive wheel at the contact position, the wet wipes tube can be rotated at high speed in a very short time, generating sufficient centrifugal force to force the liquid to penetrate rapidly. It should be noted that by using reverse motion, a relative displacement several times the stroke can be generated within a very short telescopic cylinder stroke, thereby completing the required number of rotations and achieving a compact device.

[0026] Furthermore, this application can also employ a pneumatic method to achieve non-contact drive of the impeller. Moreover, by setting multiple arrayed air nozzles, continuous acceleration of the impeller can be achieved, causing the rotational speed of the wet wipe cylinder to steadily increase to a higher level, thereby generating stronger centrifugal force and better liquid penetration. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure in this invention;

[0028] Figure 2 This is a schematic diagram showing the positional relationship between the rotating seat and the chain plate in this invention;

[0029] Figure 3 This is a schematic diagram of the drive unit structure in the present invention. Figure 1 ;

[0030] Figure 4 This is a schematic diagram of the drive unit structure in the present invention. Figure 2 ;

[0031] Figure 5 This is a schematic diagram of the drive unit structure in the present invention. Figure 3 .

[0032] In the diagram: 1. Liquid storage tank; 11. First nozzle; 12. Second nozzle; 2. Chain plate; 21. Rotary seat; 22. Second drive wheel; 23. Drive shaft; 24. First drive wheel; 3. Wet wipe tube; 4. Drive bar; 41. Telescopic cylinder; 42. Cage; 43. Miniature electric cylinder; 44. Rotary electromagnet; 5. Air inlet pipe; 51. Air nozzle; 52. Impeller. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] The inventors of this invention discovered that the "two-stage filling" method, commonly used in the traditional wet wipe liquid filling field to balance efficiency and quality, has inherent defects. While this method allows time for liquid penetration through multiple fillings, the natural penetration rate of the liquid is highly unstable due to differences in wet wipe materials and winding density. In actual high-speed production lines, if the time interval between the two fillings is too short, the liquid poured in the first time cannot fully penetrate into the wet wipe roll, and the liquid level fails to drop effectively. This not only reduces the actual volume of the second filling, resulting in a total filling volume lower than the rated volume and affecting product quality, but more seriously, extending the interval to wait for penetration directly restricts production efficiency, creating an irreconcilable contradiction between "quality" and "efficiency."

[0035] Based on this discovery, the present invention proposes a novel approach: between the two filling steps, a centrifugal force field is actively applied to the wet wipe tube to forcibly accelerate the radial migration of the liquid, thereby completing the penetration process in a very short time and breaking the above contradiction.

[0036] like Figures 1-2As shown, in one embodiment of the present invention, a wet wipe liquid filling device for wet wipe processing includes a storage tank 1 and a plate chain conveyor line disposed below it. The storage tank 1 is equipped with multiple first nozzles 11 and second nozzles 12. The first nozzles 11 are used for the first filling, and the second nozzles 12 are used for the second filling; each nozzle is equipped with an independent control valve. The plate chain conveyor line includes chain plates 2, which are sequentially connected to form a circulating conveyor line for continuously conveying wet wipe cylinders 3 forward. Multiple rotating seats 21 are rotatably connected to the chain plates 2, corresponding to the first nozzles 11 and second nozzles 12. Here, "corresponding" means that the position of each rotating seat 21 corresponds to the position of each nozzle. When the rotating seat 21 moves forward with the chain plate 2, it can move to directly below the first nozzle 11 or the second nozzle 12. The rotating seat 21 is used to place the wet wipe cylinders 3, facilitating the first nozzles 11 or the second nozzles 12 to fill the wet wipe liquid from the storage tank 1 into the wet wipe cylinders 3. It should be noted that the chain plate 2 is also equipped with a drive unit, which is used to drive the rotating seat 21 to rotate the wet wipe tube 3.

[0037] In this embodiment, the driving unit drives the rotating seat 21 at the station between the first filling and the second filling, so that the wet wipe tube 3 after the first filling can be rotated by the rotating seat 21, so that the wet wipe liquid in the wet wipe tube 3 is subjected to centrifugal force and accelerates its penetration into the paper towel roll, so that the amount of the second filling can be controlled within a more precise range, so that the wet wipe liquid is not wasted and the wet wipe can be fully soaked.

[0038] The drive unit can be set to a single group or multiple groups;

[0039] In one embodiment, when the drive unit is set to multiple sets, each drive unit corresponds to and is connected to each rotating seat 21 in a one-to-one manner, so that each rotating seat 21 can rotate independently, which can satisfy the simultaneous rotation of wet wipes 3 of different specifications.

[0040] In this embodiment, the drive unit can be implemented using a miniature DC motor, and its power supply can be achieved by embedding a battery inside the chain plate 2.

[0041] In another embodiment, when the drive unit is set as a single set, each rotating seat 21 is connected to each other through transmission. The drive unit is connected to one of the rotating seats 21 through transmission so as to drive the other rotating seats 21 to rotate synchronously.

[0042] In this embodiment, when the drive unit is set to a single set, a drive shaft 23 is also rotatably mounted on the chain plate 2, and a first drive wheel 24 is fixedly sleeved on the drive shaft 23.

[0043] Each rotating seat 21 is externally fitted with a second drive wheel 22. Adjacent second drive wheels 22 are interconnected through a transmission mechanism. Specifically, each second drive wheel 22 can be equipped with a friction ring or teeth, allowing for meshing and transmission between adjacent second drive wheels 22. A first drive wheel 24 is also connected to one of the second drive wheels 22. Similarly, the first drive wheel 24 is also equipped with a friction ring or teeth structure corresponding to those on the second drive wheel 22 to achieve transmission.

[0044] The drive unit is located on one side of the plate chain conveyor and is used to drive the drive shaft 23 to rotate. In this embodiment, the drive unit is independently located outside the plate chain conveyor, and its position is relatively fixed relative to the position of the liquid storage tank 1. It will not move forward with the plate chain conveyor, thereby reducing the difficulty of supplying energy to the drive unit.

[0045] like Figures 3-4 As shown, in one embodiment, the drive unit includes a telescopic cylinder 41, which is either an electric cylinder or a pneumatic cylinder. The output direction of the telescopic cylinder 41 is parallel to the conveying direction of the plate chain conveyor. Here, "parallel" means that the output direction of the telescopic cylinder 41 is the same as or opposite to the conveying direction of the plate chain conveyor.

[0046] A retainer 42 is fixedly connected to the output end of the telescopic cylinder 41. A drive bar 4 is movably connected to the side of the retainer 42 closest to the conveyor belt. The drive bar 4 can switch between a contact position and a disengagement position on the retainer 42. In the contact position, the drive bar 4 acts on the first drive wheel 24, and the two engage through friction or teeth. The actuating part of the drive bar 4 is preferably an elastic wear-resistant strip to reduce the difficulty of tooth engagement and extend the service life of the drive bar 4. In the disengagement position, the drive bar 4 separates from the first drive wheel 24 to avoid affecting the continuous forward movement of the conveyor belt.

[0047] At the contact position, the telescopic cylinder 41 drives the drive bar 4 to move, which in turn drives the first drive wheel 24 to rotate around its axis. It should be noted that the plate chain conveyor advances intermittently according to the filling rhythm during transport. The telescopic cylinder 41 can operate when the plate chain conveyor is stationary or when it has not yet stopped. When the plate chain conveyor has not stopped and the telescopic cylinder 41 starts working, and both are moving in the same direction, the output speed of the telescopic cylinder 41 is much greater than the speed of the plate chain conveyor.

[0048] In this embodiment, the retainer 42 and the drive bar 4 are connected by either a telescopic connection or a rotary connection. Both telescopic and rotary connections allow the drive bar 4 to switch between a contact position and a separation position.

[0049] When the retainer 42 and the drive bar 4 are telescopically connected, a miniature electric cylinder 43 is installed on the side wall of the retainer 42 near the conveyor belt. The output end of the miniature electric cylinder 43 is perpendicular to the conveying direction of the conveyor belt. The drive bar 4 is fixedly installed on the output end of the miniature electric cylinder 43. When the output end of the miniature electric cylinder 43 extends, it presses the drive bar 4 against the first drive wheel 24. When the output end of the miniature motor 1 retracts, it separates the drive bar 4 from the first drive wheel 24. This allows the drive bar 4 to switch between the contact position and the separation position.

[0050] When the retainer 42 and the drive bar 4 are rotatably connected, a rotating electromagnet 44 is installed at the front end of the retainer 42, and the drive bar 4 is fixedly connected to the output end of the rotating electromagnet 44, allowing the drive bar 4 to rotate around the retainer 42, that is, to rotate around the output direction of the telescopic cylinder 41. When the drive bar 4 rotates to a position close to the first drive wheel 24, the two contact and transmit power; when the drive bar 4 rotates to another position, the two separate. This achieves the switching of the drive bar 4 between the contact position and the separation position.

[0051] In any of the above embodiments, at the contact position, the telescopic cylinder 41 drives the drive bar 4 to move in the opposite direction to the conveyor belt, causing the drive bar 4 and the first drive wheel 24 to produce a reverse relative translational motion. Specifically, this reverse relative translational motion means that the drive bar 4 moves in the opposite direction to the conveying direction of the conveyor belt under the action of the telescopic cylinder 41. Meanwhile, the first drive wheel 24 moves in the conveying direction along with the conveyor belt. Simultaneously, the drive bar 4 and the first drive wheel 24 engage, moving in opposite directions. This allows the wet wipe cylinder 3 to rotate at high speed in a very short time, generating sufficient centrifugal force to force the liquid to penetrate quickly. Furthermore, through this reverse motion, a relative displacement several times the stroke of the telescopic cylinder 41 can be generated within a very short stroke, thus completing the required number of rotations and achieving a compact design.

[0052] like Figure 5 As shown, in another embodiment, the drive unit includes an impeller 52 and an air inlet pipe 5. The air inlet pipe 5 is connected to an external air source, and an air nozzle 51 is connected to the side wall of the air inlet pipe 5. The impeller 52 is fixedly sleeved on the drive shaft 23. When the impeller 52 moves to the target position, the air outlet of the air nozzle 51 can be directly opposite the blades of the impeller 52 to drive the impeller 52 to rotate. Since the air nozzle 51 and the impeller 52 are driven by a non-contact method, it has advantages such as low wear and easy maintenance.

[0053] Furthermore, there are multiple sets of air nozzles 51, and these multiple sets of air nozzles 51 are equidistantly distributed along the direction of the plate chain conveyor line; when the impeller 52 moves to the position of the corresponding air nozzle 51, the air outlet of the air nozzle 51 can be set directly opposite to the blade of the impeller 52.

[0054] Multiple air nozzles 51 are arranged equidistantly along the flow line. The impeller 52 passes through each air nozzle 51 in sequence. Each air nozzle 51 sprays air onto the impeller blades the instant it passes, applying a driving force to the impeller 52. Unlike the one-time acceleration from a single driving point, this multi-nozzle design allows the impeller 52 to continuously and repeatedly receive acceleration energy throughout its centrifugal process. This enables the rotational speed of the wet wipe cylinder 3 to steadily increase to a higher level, generating stronger centrifugal force and improving liquid penetration. The continuous pulsed drive is smoother, helping to reduce equipment vibration and impact.

[0055] Working Principle: In this application, during the filling of wet wipe liquid, the wet wipe tube 3 containing the tissue roll is placed in each rotating seat 21. After moving to the first nozzle 11 for the first filling, the drive unit rotates each wet wipe tube 3. Under the action of centrifugal force, the wet wipe liquid more easily penetrates into the tissue roll. Then, it moves to the second nozzle 12 for the second filling. Compared to existing two-stage filling methods, this application actively applies a centrifugal force field to the wet wipe tube between the two filling steps, forcibly accelerating the radial migration of the liquid, thereby completing the penetration process in a very short time. This balances filling efficiency and filling quality.

[0056] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wet wipe liquid filling device for wet wipe processing, comprising a liquid storage tank and a plate chain conveyor line disposed below it, characterized in that, The liquid storage tank is equipped with multiple first nozzles and second nozzles. The plate chain conveyor includes a chain plate. Multiple rotating seats corresponding to the first nozzles and second nozzles are rotatably connected to the chain plate. The rotating seats are used to place the wet wipes tube. The chain plate is also equipped with a drive unit for driving the rotating seats to rotate the wet wipes tube. The drive unit can be configured as a single group or multiple groups; When the drive unit is set into multiple groups, each drive unit corresponds to each rotary seat and is connected by transmission. When the drive unit is set as a single set, each of the rotating seats is connected to each other through transmission. The drive unit is connected to one of the rotating seats through transmission, so as to drive the other rotating seats to rotate synchronously through the rotating seat. When the drive unit is set to a single set, a drive shaft is also rotatably mounted on the chain plate, and a first drive wheel is fixedly sleeved on the drive shaft; Each of the rotating seats is externally fitted with a second drive wheel, and two adjacent second drive wheels are connected to each other through transmission, and the first drive wheel is connected to one of the second drive wheels through transmission; The drive unit is located on one side of the plate chain assembly line and is used to drive the drive shaft to rotate. The drive unit includes a telescopic cylinder. The output direction of the telescopic cylinder is parallel to the conveying direction of the plate chain conveyor. A retainer is fixedly connected to the output end of the telescopic cylinder. A drive bar is movably connected to the side of the retainer near the plate chain conveyor. The drive bar can switch to a contact position or a separation position on the retainer. In the contact position, the drive bar acts on the first drive wheel. In the separation position, the drive bar separates from the first drive wheel. At the contact position, the telescopic cylinder drives the drive bar to move, which in turn drives the first drive wheel to rotate around its axis. The cage and drive bar are connected by either a telescopic connection or a rotatable connection. When the retainer and the drive bar are telescopically connected, a miniature electric cylinder is installed on the side wall of the retainer near the plate chain conveyor. The output end of the miniature electric cylinder is perpendicular to the conveying direction of the plate chain conveyor. The drive bar is fixedly installed on the output end of the miniature electric cylinder to realize the switching of the drive bar between the contact position and the separation position.

2. The wet wipe liquid filling equipment for wet wipe processing according to claim 1, characterized in that, When the cage and the drive bar are rotatably connected, a rotating electromagnet is installed at the front end of the cage, and the drive bar is fixedly connected to the output end of the rotating electromagnet, so that the drive bar can rotate around the cage to achieve the switching of the drive bar between the contact position and the separation position.

3. A wet wipe liquid filling device for wet wipe processing according to claim 1 or 2, characterized in that, At the contact position, the telescopic cylinder drives the drive bar to move in the opposite direction to the plate chain conveyor, causing the drive bar and the first drive wheel to produce a relative translational motion in opposite directions.

4. The wet wipe liquid filling equipment for wet wipe processing according to claim 1, characterized in that, The drive unit includes an impeller and an air inlet pipe. The air inlet pipe is connected to an external air source, and an air nozzle is connected to the side wall of the air inlet pipe. The impeller is fixedly sleeved on the drive shaft. When the impeller moves to the target position, the air outlet of the air nozzle can be positioned directly opposite the blades of the impeller to drive the impeller to rotate.

5. The wet wipe liquid filling equipment for wet wipe processing according to claim 4, characterized in that, The number of air nozzles is multiple sets, and the multiple sets of air nozzles are distributed in an equidistant array along the direction of the plate chain conveyor; when the impeller moves to the position of the corresponding air nozzle, the air outlet of the air nozzle can be set directly opposite the blade of the impeller.

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