Wet wipe substrate premoistening apparatus

Abstract

A pre-wetting device for wet wipe substrate includes two symmetrically arranged legs, an infusion pipe, and a protective liquid tank assembly. The infusion pipe is fixedly connected between the upper ends of the two legs, and a plurality of atomizing nozzles are evenly arranged on the infusion pipe. The protective liquid tank assembly includes a receiving liquid tank and two cylinders connected to both ends of the receiving liquid tank. The cylinders are fixed to the inner side of the upper end of the legs, and the end of the receiving liquid tank is fixedly connected to the outer end of the piston rod of the cylinder, so that the position of the receiving liquid tank corresponds to that of the atomizing nozzles. The wetting device is equipped with independent atomizing nozzles on the infusion pipe, and automatic control valves for precise flow control are installed on the atomizing nozzles to ensure that the spray volume of each atomizing nozzle is consistent, thereby improving the uniformity of spraying the substrate. Furthermore, the cylinders can drive the receiving liquid tank to move laterally, so that it can avoid the nozzles during the spraying operation and spray normally. When the operation is paused or completed, the receiving liquid tank quickly moves under the nozzles to catch the dripping liquid and avoid the phenomenon of local over-wetting of the substrate.

Description

Technical Field

[0001] This utility model relates to the field of wet wipe production equipment, and in particular to a wet wipe substrate pre-wetting device. Background Technology

[0002] The pre-wetting process of the substrate in wet wipe processing is a crucial step in ensuring the quality of the finished product. This process uses a precisely controlled liquid distribution system to evenly spray the wetting solution onto the surface of the nonwoven substrate. During this process, the wetting equipment allows the liquid to penetrate the fiber gaps, while the tension control system keeps the substrate flat, preventing wrinkles and deformation. An online humidity sensor monitors the moisture content in real time, and a closed-loop feedback system automatically adjusts the liquid flow rate to keep the substrate's moisture content stable within a set range. The softened substrate is improved, laying the foundation for subsequent processes such as slitting, folding, and packaging. Currently, wetting equipment typically uses spray pipes with evenly spaced nozzles for spraying. Pressure differences lead to poor spray uniformity, and when spraying is paused or completed, a small amount of liquid remaining in the spray pipes continues to flow out of the nozzles due to gravity, dripping onto the substrate and causing localized over-wetting, which affects the processing quality of subsequent processes and needs improvement. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a pre-wetting device for wet wipe substrate.

[0004] The technical solution of this utility model is: a pre-wetting device for wet wipe substrate, comprising two symmetrically arranged legs, an infusion tube, and a protective liquid tank assembly; the infusion tube is fixedly connected between the upper ends of the two legs, one end of the infusion tube is closed, and the other end is connected to a liquid delivery hose through an adapter, and a plurality of atomizing nozzles are evenly arranged on the infusion tube, the atomizing nozzles being arranged vertically downward; the protective liquid tank assembly includes a receiving liquid tank and two cylinders connected to both ends of the receiving liquid tank, the cylinders being dual-axis cylinders, the cylinders being fixed to the inner side of the upper end of the legs, the extension and retraction direction of the cylinders being consistent with the lateral direction of the legs, and the end of the receiving liquid tank being fixedly connected to the outer end of the piston rod of the cylinder, so that the position of the receiving liquid tank corresponds to that of the atomizing nozzle.

[0005] Preferably, the upper ends of the two legs are fixedly connected to an auxiliary tank, and a certain distance is provided between the auxiliary tank and the liquid receiving tank. Several through holes are evenly provided at the bottom of the auxiliary tank, and the atomizing nozzle extends vertically from the through holes.

[0006] Preferably, the cross-section of both the auxiliary tank and the liquid receiving tank is U-shaped, made by continuous bending of sheet metal, and both are made of stainless steel.

[0007] Preferably, the atomizing nozzle is equipped with an automatic control valve, which is arranged at an upward angle.

[0008] Preferably, the upper end of the support leg is provided with an extension section, the size of which is smaller than the overall length of the support leg. The connector at the end of the infusion tube is located above the extension section. The support leg is in the shape of a channel steel, and the opening of the support leg faces outward.

[0009] Preferably, the outer end of the liquid tank is provided with an L-shaped plate, the size of which matches the width of the cylinder, and the L-shaped plate is fixedly connected to the piston rod of the cylinder.

[0010] Preferably, the end of the liquid tank is provided with a drain pipe, and the lower end of the drain pipe is connected to a flexible guide pipe. The drain pipe and the flexible guide pipe are connected by a flange.

[0011] Preferably, the infusion tube is a regular polygonal prism tube, and both ends of the infusion tube are fixedly connected to the upper end face of the support leg by U-shaped buckles. The U-shaped buckles have a continuous bending structure and can match the outer surface of the polygonal prism tube.

[0012] The beneficial technical effects of this utility model are:

[0013] (1) The humidification device is equipped with an independent atomizing nozzle on the infusion pipe. An automatic control valve is installed on the atomizing nozzle to accurately control the flow rate, so that the spray flow rate of each atomizing nozzle is consistent, thereby improving the overall spray uniformity of the substrate and ensuring the spray quality of the substrate.

[0014] (2) A liquid receiving tank is set below the atomizing nozzle. The liquid receiving tank is driven to move laterally by the cylinders at both ends. During the spraying operation, it can avoid the nozzle and spray normally. When the operation is paused or completed, the liquid receiving tank quickly moves to the bottom of the nozzle to catch the dripping liquid, so as to avoid the phenomenon of local over-wetting of the substrate and thus ensure the processing quality of the substrate in subsequent processes. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 3 yes Figure 2 A schematic diagram of the AA-direction cross-section structure;

[0018] Figure 4 yes Figure 2 A schematic diagram of the atomizing nozzle in operation;

[0019] Figure 5 This is a three-dimensional structural diagram of the protective liquid tank assembly.

[0020] In the diagram, 1. support leg, 11. extension section, 2. infusion tube, 21. U-shaped buckle, 3. atomizing nozzle, 31. automatic control valve, 4. receiving tank, 41. cylinder, 42. L-shaped plate, 43. pad, 44. drain pipe, 5. auxiliary tank. Detailed Implementation

[0021] Example 1, see appendix Figure 1-5 A pre-wetting device for wet wipe substrate includes two symmetrically arranged legs 1, an infusion pipe 2, and a protective liquid tank assembly. The infusion pipe 2 is fixedly connected between the upper ends of the two legs 1. A plurality of atomizing nozzles 3 are evenly arranged on the infusion pipe 2. An automatic control valve 31 is provided on the atomizing nozzles 3 to control the spray flow rate of the atomizing nozzles 3. The protective liquid tank assembly includes a receiving liquid tank 4 and two cylinders 41 connected to both ends of the receiving liquid tank 4. The two cylinders 41 move synchronously to drive the receiving liquid tank 4 to move horizontally. The cylinders 41 are fixed to the inner side of the upper end of the legs 1. The end of the receiving liquid tank 4 is fixedly connected to the outer end of the piston rod of the cylinder 41, so that the position of the receiving liquid tank 4 corresponds to that of the atomizing nozzles 3, and can completely cover each atomizing nozzle 3 from below.

[0022] The liquid receiving tank 4 has a U-shaped cross-section and is made of stainless steel. The outer end of the liquid tank is provided with an L-shaped plate 42, which is fixedly connected to the piston rod of the cylinder 41. A pad 43 is provided between the piston rod and the L-shaped plate 42 so that the two ends of the liquid receiving tank 4 can be stably connected to the cylinders 41 at both ends.

[0023] The end of the liquid tank is provided with a drain pipe 44, and the lower end of the drain pipe 44 is connected to a flexible guide pipe, through which the liquid stored in the liquid tank is discharged.

[0024] The infusion tube 2 is a regular polygonal prism tube. Both ends of the infusion tube 2 are fixedly connected to the upper end face of the support leg 1 through U-shaped buckles 21. The outer plane of the regular polygonal prism tube can fully fit with the plane of the upper end of the support leg 1, making it less likely for the infusion tube 2 to roll or deflect, thus ensuring the spraying accuracy of each atomizing nozzle 3.

[0025] When using the wet wipe substrate pre-wetting device in this embodiment: according to the product requirements corresponding to the substrate, the flow rate of each atomizing nozzle 3 is precisely controlled by the automatic control valve 31 to make the spray flow rate of each atomizing nozzle 3 consistent. The receiving liquid tank 4 is driven to move laterally by the cylinders 41 at both ends, so that the receiving liquid tank 4 is away from directly below each atomizing nozzle 3. Then, each atomizing nozzle 3 is started simultaneously to spray the substrate below. When the operation is paused or completed, the cylinders 41 are started to drive the receiving liquid tank 4 to quickly move to directly below the nozzle to catch the dripping liquid, avoid the phenomenon of local over-wetting of the substrate, improve the spraying quality, and thus ensure the processing quality of the substrate in subsequent processes.

[0026] Example 2, see appendix Figure 1-3 This embodiment is basically the same as Embodiment 1, and the similarities will not be repeated. The difference is that: the upper end of the support leg 1 is provided with an extension section 11, the connector at the end of the infusion tube 2 is located above the extension section 11, the support leg 1 is in the shape of a channel steel, and the opening of the support leg 1 is arranged outward. This structure of the support leg 1 enables it to drain liquid. When leakage occurs at the connector at the end of the infusion tube 2, the liquid can be guided outward from the extension section 11 of the channel steel to prevent the liquid from flowing onto the substrate below.

[0027] The upper ends of the two legs 1 are fixedly connected to auxiliary tanks 5. The cross-section of the liquid receiving tanks 4 is U-shaped and made of stainless steel. Several through holes are evenly provided at the bottom of the auxiliary tanks 5, and the atomizing nozzles 3 extend vertically from the through holes. A sealing gasket is provided between the through holes and the atomizing nozzles 3 to ensure the sealing of the connection between the nozzles and the through holes. The auxiliary tanks 5 are used to cover the infusion tubes 2 and each atomizing nozzle 3 from below, which also prevents the leakage of liquid from the connection and dripping onto the substrate below. Through multi-level safety protection, the wetting device has sufficient reliability and ensures the wetting quality of the substrate.

Claims

1. A pre-wetting device for wet wipe substrate, characterized in that: It includes two symmetrically arranged legs, an infusion tube, and a protective liquid tank assembly; the infusion tube is fixedly connected between the upper ends of the two legs, and several atomizing nozzles are evenly arranged on the infusion tube; the protective liquid tank assembly includes a liquid receiving tank and two cylinders connected to both ends of the liquid receiving tank. The cylinders are fixed to the inner side of the upper end of the legs, and the end of the liquid receiving tank is fixedly connected to the outer end of the piston rod of the cylinder, so that the position of the liquid receiving tank corresponds to that of the atomizing nozzle.

2. The wet wipe substrate pre-wetting device according to claim 1, characterized in that: The upper ends of the two legs are fixedly connected to an auxiliary trough. Several through holes are evenly provided at the bottom of the auxiliary trough, and the atomizing nozzle extends vertically from the through holes.

3. The wet wipe substrate pre-wetting device according to claim 2, characterized in that: Both the auxiliary tank and the liquid receiving tank have U-shaped cross-sections and are made of stainless steel.

4. The wet wipe substrate pre-wetting device according to claim 1, characterized in that: The atomizing nozzle is equipped with an automatic control valve.

5. The wet wipe substrate pre-wetting device according to claim 1, characterized in that: The upper end of the support leg is vertically extended, and the connector at the end of the infusion tube is located above the extension. The support leg is in the shape of a channel steel, and the opening of the support leg faces outward.

6. The wet wipe substrate pre-wetting device according to claim 1, characterized in that: The outer end of the liquid tank is provided with an L-shaped plate, which is fixedly connected to the piston rod of the cylinder.

7. The wet wipe substrate pre-wetting device according to claim 1, characterized in that: The liquid tank is provided with a drain pipe at one end, and a flexible guide pipe is connected to the lower end of the drain pipe.

8. The wet wipe substrate pre-wetting device according to claim 1, characterized in that: The infusion tube is a regular polygonal prism tube, and both ends of the infusion tube are fixedly connected to the upper end face of the support leg by U-shaped buckles.

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