A nonwoven fabric processing technique

Abstract

This invention discloses a nonwoven fabric processing technology, comprising the following steps: melt spinning of raw materials, stretching of nascent fibers into filaments by airflow, laying of long filament fibers into a web, dripping water onto the surface of the nonwoven web using a dripping component, and hot-pressing the web through a hot rolling mill to melt and form it. This invention increases the adhesion between the wetted nonwoven web fibers by dripping water onto their surface, making them less prone to slippage and facilitating transmission. Furthermore, the hot rolling mill generates more steam, which acts on the bottom of the nonwoven web and adheres to its surface, effectively "preheating" it and providing a temperature "buffer" before hot pressing. This results in better melt-forming of the nonwoven fabric and allows for the recovery of heat contained in the steam, as well as the recycling of the condensed steam solution, avoiding water waste.

Description

Technical Field

[0001] This invention belongs to the field of nonwoven fabric processing technology, and specifically relates to a nonwoven fabric processing technology. Background Technology

[0002] Non-woven fabric is a type of fabric formed without spinning or weaving. It is made by arranging short or long textile fibers in a directional or random manner to form a web structure, which is then reinforced using mechanical, thermal, or chemical methods. Non-woven fabric has no warp or weft threads, making it very convenient to cut and sew. It is also lightweight and easy to shape, making it popular among craft enthusiasts.

[0003] The hot pressing of nonwoven webs through a hot rolling mill is one of the important steps in the production of nonwoven fabrics. After the nonwoven webs are laid out, they directly enter the hot pressing process. The temperature difference of the nonwoven webs varies greatly, and because the two ends and the middle of the nonwoven webs are different, the thickness of the nonwoven fabrics will be inconsistent.

[0004] By using a dripping device to drip water onto the surface of the nonwoven web, the adhesion between the wetted nonwoven webs increases, making it less prone to thread slippage. Furthermore, the nonwoven web generates more steam through the hot rolling machine, and the resulting steam flow acts on the bottom of the nonwoven web to "preheat" it, providing a temperature "buffer" before hot pressing. This results in better melt-forming of the nonwoven fabric and avoids uneven thickness.

[0005] Therefore, it is necessary to invent a nonwoven fabric processing technology to solve the problem of inconsistent nonwoven fabric thickness caused by large temperature differences before and after hot pressing. Summary of the Invention

[0006] To address the aforementioned problems, this invention provides a nonwoven fabric processing technology to solve the issues raised in the background section.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a nonwoven fabric processing technology, comprising the following steps:

[0008] Step 1: Melt spinning. The pre-dried raw material is sliced ​​and loaded into the feed hopper of the extruder. The sliced ​​raw material is mixed and melted inside the extruder and then extruded under pressure. The extruded melt is filtered to remove impurities and then pumped into the spinning system. The melt flows to the spinneret and is ejected in the form of filaments from its spinneret holes.

[0009] Step 2: Nascent fiber airflow stretching. The airflow stretching equipment draws the side-blown, air-cooled filaments into the suction port. Under the acceleration of the high-speed, high-pressure stretching airflow blown in from the inside, the filaments quickly pass through the stretching nozzle and achieve the stretching process.

[0010] Step 3: Fiber web formation. The formed continuous filaments are evenly dispersed and laid on the web forming curtain by mechanical filament splitting to form a non-woven fiber web. At the same time, the laid fiber filaments are collected and fixed by negative pressure web laying method. Before the non-woven fiber web enters the shaping area, water is evenly dripped onto its surface.

[0011] Step 4: Web shaping. The nonwoven web is heated and melted in a hot rolling mill and then melted into nonwoven fabric under pressure. The moisture inside the nonwoven web turns into steam during hot pressing. Some of the steam is adsorbed at the bottom of the top of the nonwoven web, and the other part of the steam is recovered after condensation. The heat inside the steam is used to heat the web before water drips in.

[0012] Furthermore, a vertical deflector is provided at the output end of the nonwoven fabric curtain, through which the nonwoven fabric changes from horizontal to vertical movement.

[0013] Furthermore, a dripping assembly is provided at the top of the vertical turning cylinder, the hot rolling mill is located directly below the dripping assembly, and the hot rolling mill is vertically arranged at the bottom of the output end of the wire mesh curtain.

[0014] Furthermore, the dripping assembly includes a water storage tank, a steam recovery chamber, and a pushing cylinder. A cooling plate is provided on one side of the water storage tank, with one end of the cooling plate extending into the interior of the water storage tank and the other end extending to the top of the steam recovery chamber. A dripping chamber is provided at the bottom of the water storage tank, and several drip-like valve ports are provided at the bottom of the dripping chamber. A water supply mechanism is provided at the inlet of the dripping chamber in the water storage tank, and a recovery mechanism is provided on one side of the water supply mechanism.

[0015] Furthermore, the water supply mechanism includes a movable frame and several rubber strips. One end of the movable frame is fixedly connected to the output end of the push cylinder. Both ends of the movable frame are fitted with sliding rails. Two of the sliding rails are fixedly connected to the inner wall of the water storage tank. The tops of the rubber strips are fixedly connected with multiple connecting rods. The tops of the connecting rods are movably inserted into the inside of the movable frame. A first spring is fitted onto the surface of the connecting rod located between the movable frame and the rubber strips.

[0016] Furthermore, the recycling mechanism includes a water inlet pipe, one end of which is connected to a connecting pipe, and the other end of which is connected to an inlet pipe and an outlet pipe. A push piston is installed inside the water inlet pipe, and a push rod is installed at one end of the push piston. One end of the push rod is fixedly connected to a movable frame. A mounting frame is installed at one end of the connecting pipe, and a blocking ring is fixedly connected to the middle of the mounting frame. A blocking plug is installed inside the blocking ring, and two second springs are fixedly connected to both ends of the blocking plug. One end of each of the two second springs is fixedly connected to the mounting frame. A single-channel device is installed inside both the inlet pipe and the outlet pipe.

[0017] Furthermore, the single-channel device includes a conical plug, one end of which is provided with a third spring, and the two single-channel devices are arranged in opposite directions.

[0018] Furthermore, the internal volume of the water inlet pipe is the same as that of the connecting pipe, and the bottom of the connecting pipe is bent.

[0019] Furthermore, in step three, the dripping component operates as follows: the cylinder drives the moving frame to move at a fixed time and distance. The two ends of the moving frame move within the sliding track and are supported by it. The rubber strip at the dripping chamber inlet is pushed upward and retracted. Multiple connecting rods that provide a limiting effect on the rubber strip move upward accordingly, and the first spring is compressed. Water can then enter the dripping chamber from the water storage tank through the dripping chamber inlet for water supply. The water inside the dripping chamber can then drip onto the surface of the non-woven fiber web through a drip-like valve. As the moving frame moves to a working position, water is supplied through the dripping chamber inlet. After the moving frame reaches the end, it is pushed back by the cylinder.

[0020] Furthermore, in step four, the dripping component operates as follows: the steam generated by the hot rolling mill rises to the bottom of the cooling plate, condenses on the surface of the cooling plate, and falls into the steam recovery chamber along its inclined surface. The heat of the steam is transferred to the water storage tank through the cooling plate. During the moving frame process, the push rod drives the push piston to gradually enter the water inlet pipe. Every time the push piston enters a certain distance, the blocking plug is pushed a certain distance, allowing the water in the water inlet pipe to enter the connecting pipe normally. The second springs at both ends of the blocking plug are stretched and compressed respectively. When the push piston stops moving, the two second springs reset and reset the blocking plug. The push piston moves, allowing the water to gradually fill the connecting pipe. The air in the connecting pipe pushes the conical plug in the exhaust pipe and compresses the third spring, allowing the air in the connecting pipe to be discharged through the exhaust pipe. During the retraction of the moving frame, the push piston gradually draws out the water in the connecting pipe, the blocking plug moves in the opposite direction, allowing the water to pass normally, and the conical plug in the water inlet pipe is pushed and moved by the water, allowing the recovered water in the steam recovery chamber to be recovered into the water storage tank through the water inlet pipe and the connecting pipe.

[0021] The technical effects and advantages of this invention are as follows:

[0022] 1. This invention drips water onto the surface of the nonwoven fiber web, which increases the adhesion between the wetted nonwoven fiber webs, making them less prone to slippage and easier to transport. Furthermore, the nonwoven fiber web generates more steam through the hot rolling machine. The resulting steam flow acts on the bottom of the nonwoven fiber web and adsorbs onto its surface, which can "preheat" the nonwoven fiber web to provide a temperature "buffer" before hot pressing, resulting in better melt forming effect of the nonwoven fabric.

[0023] 2. This invention recovers heat from steam by incorporating a cooling plate within the dripping assembly. The recovered heat is used to slightly raise the temperature of the solution in the water storage tank. The water supply mechanism provides power to the recovery mechanism by supplying water to the dripping chamber. The recovery mechanism can then re-inject the solution in the steam recovery chamber into the water storage tank, thereby condensing and recovering the steam and avoiding water waste.

[0024] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A process flow diagram of an embodiment of the present invention is shown.

[0027] Figure 2 A schematic diagram showing the location of the dripping component according to an embodiment of the present invention is shown;

[0028] Figure 3 A front view of the dripping component in an embodiment of the present invention is shown;

[0029] Figure 4 A front sectional view of the dripping component in an embodiment of the present invention is shown;

[0030] Figure 5 An embodiment of the present invention is shown. Figure 4 Enlarged view of part A;

[0031] Figure 6 A front sectional view of the recycling mechanism in an embodiment of the present invention is shown;

[0032] Figure 7 An embodiment of the present invention is shown. Figure 6 Enlarged view of part B;

[0033] Figure 8 An embodiment of the present invention is shown. Figure 6 Enlarged view of part C;

[0034] In the diagram: 1. Drip assembly; 2. Hot rolling mill; 3. Vertical steering cylinder; 101. Water storage tank; 102. Steam recovery chamber; 103. Push cylinder; 104. Cooling plate; 105. Drip chamber; 106. Drip-like valve port; 107. Moving frame; 108. Sliding track; 109. Rubber strip; 110. Connecting rod; 111. First spring; 112. Water inlet pipe; 113. Connecting pipe; 114. Water inlet pipe; 115. Exhaust pipe; 116. Push piston; 117. Push rod; 118. Mounting bracket; 119. Blocking ring; 120. Blocking plug; 121. Second spring; 122. Conical plug; 123. Third spring. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] This invention provides a nonwoven fabric processing technology, such as... Figure 1 As shown, it includes the following steps:

[0037] Step 1: Melt spinning. The pre-dried raw material is sliced ​​and loaded into the feed hopper of the extruder. The sliced ​​raw material is mixed and melted inside the extruder and then extruded under pressure. The extruded melt is filtered to remove impurities and then pumped into the spinning system. The melt flows to the spinneret and is ejected in the form of filaments from its spinneret holes.

[0038] Step 2: Nascent fiber airflow stretching. The airflow stretching equipment draws the side-blown, air-cooled filaments into the suction port. Under the acceleration of the high-speed, high-pressure stretching airflow blown in from the inside, the filaments quickly pass through the stretching nozzle and achieve the stretching process.

[0039] Step 3: Fiber web formation. The formed continuous filaments are evenly dispersed and laid on the web forming curtain by mechanical filament splitting to form a non-woven fiber web. At the same time, the laid fiber filaments are collected and fixed by negative pressure web laying method. Before the non-woven fiber web enters the shaping area, water is evenly dripped onto its surface.

[0040] Step 4: Web shaping. The non-woven web is heated and melted in the hot rolling mill 2 and melted into non-woven fabric under pressure. The moisture inside the non-woven web forms steam during hot pressing. Some of the steam is adsorbed at the bottom of the top of the non-woven web, and the other part of the steam is recovered after condensation. The heat inside the steam is used to heat up the water before it drips in.

[0041] like Figure 2As shown, a vertical turning cylinder 3 is provided at the output end of the nonwoven fabric curtain. The nonwoven fabric moves from horizontal to vertical through the vertical turning cylinder 3. A dripping component 1 is provided at the top of the vertical turning cylinder 3. The hot rolling mill 2 is located directly below the dripping component 1 and is vertically positioned at the bottom of the output end of the nonwoven fabric curtain. The vertical turning cylinder 3 turns the nonwoven fabric so that the bottom of the nonwoven fabric is above the steam generated by the hot rolling mill 2.

[0042] After dripping water onto the surface of the nonwoven web, the adhesion between the wet nonwoven webs increases, making it less prone to thread slippage and facilitating transmission. Furthermore, the nonwoven web generates more steam as it passes through the hot rolling mill 2. The resulting steam flow acts on the bottom of the nonwoven web and adheres to its surface, which can "preheat" the nonwoven web to provide a temperature "buffer" before hot pressing, resulting in better melt-forming of the nonwoven fabric.

[0043] like Figure 3-8 As shown, the dripping assembly 1 includes a water storage tank 101, a steam recovery chamber 102, and a push cylinder 103. A cooling plate 104 is provided on one side of the water storage tank 101. One end of the cooling plate 104 extends into the interior of the water storage tank 101, and the other end extends to the top of the steam recovery chamber 102. A dripping chamber 105 is provided at the bottom of the water storage tank 101. Several drip-like valve ports 106 are provided at the bottom of the dripping chamber 105. A water supply mechanism is provided at the inlet of the dripping chamber 105 in the water storage tank 101, and a recovery mechanism is provided on one side of the water supply mechanism.

[0044] like Figure 4-5 As shown, the water supply mechanism includes a movable frame 107 and several rubber strips 109. One end of the movable frame 107 is fixedly connected to the output end of the push cylinder 103. Both ends of the movable frame 107 are fitted with sliding rails 108. The two sliding rails 108 are fixedly connected to the inner wall of the water storage tank 101. The tops of the several rubber strips 109 are fixedly connected with multiple connecting rods 110. The tops of the connecting rods 110 are movably inserted into the inside of the movable frame 107. A first spring 111 is fitted onto the surface of the connecting rod 110 between the movable frame 107 and the rubber strips 109.

[0045] like Figure 6-8As shown, the recycling mechanism includes a water inlet pipe 112, with a connecting pipe 113 at one end. An inlet pipe 114 and an outlet pipe 115 are connected to one end of the connecting pipe 113. A piston 116 is installed inside the water inlet pipe 112, with a push rod 117 at one end. One end of the push rod 117 is fixedly connected to a movable frame 107. The internal volume of the water inlet pipe 112 is the same as the internal volume of the connecting pipe 113. The bottom of the connecting pipe 113 is bent. An installation bracket 118 is provided at one end, and a blocking ring 119 is fixedly connected to the middle of the installation bracket 118. A blocking plug 120 is provided inside the blocking ring 119. A second spring 121 is fixedly connected to both ends of the blocking plug 120. One end of each of the two second springs 121 is fixedly connected to the installation bracket 118. A single-channel device is provided inside both the water inlet pipe 114 and the exhaust pipe 115. The single-channel device includes a conical plug 122. A third spring 123 is provided at one end of the conical plug 122. The two single-channel devices are arranged in opposite directions.

[0046] The cooling plate 104 inside the drip assembly 1 recovers the heat from the steam. The recovered heat is used to slightly raise the temperature of the solution in the water storage tank 101. The water supply mechanism provides power to the recovery mechanism by supplying water to the drip chamber 105. The recovery mechanism can then re-inject the solution in the steam recovery chamber 102 into the water storage tank 101, thereby condensing and recovering the steam and avoiding water waste.

[0047] like Figure 3-8As shown, the dripping assembly 1 operates as follows: The cylinder 103 drives the moving frame 107 to move at a fixed time and distance. Both ends of the moving frame 107 move within the sliding track 108 and are supported and limited thereby. Meanwhile, the rubber strip 109 at the inlet of the dripping chamber 105 is pushed upwards and retracts. Multiple connecting rods 110, which limit the rubber strip 109, move upwards accordingly, compressing the first spring 111. Water can then flow through the inlet of the dripping chamber 105 from inside the water storage tank 101 into the dripping chamber 105 for water supply. The water inside the dripping chamber 105 can then flow through the dripping mechanism... Water drips from the nonwoven fabric surface at the inlet 106. As the moving frame 107 moves to each working position, water is supplied through the inlet of the drip chamber 105. After the moving frame 107 reaches its end, it is pushed back by the cylinder 103. The water supply mechanism can evenly supply water to the inside of the drip chamber 105, preventing excessive water pressure from causing excessively fast dripping. Meanwhile, the steam generated by the hot rolling mill 2 rises to the bottom of the cooling plate 104, condenses on its surface, and falls along its inclined surface into the steam recovery chamber 102. The heat of the steam is then transferred to the cooling plate. The water is introduced into the water storage tank 101 through the cooling plate 104. During the movement of the moving frame 107, the push rod 117 drives the push piston 116 to gradually enter the water inlet pipe 112. Every time the push piston 116 enters a certain distance, the blocking plug 120 is pushed a certain distance, allowing the water in the water inlet pipe 112 to flow normally into the connecting pipe 113. The second springs 121 at both ends of the blocking plug 120 are stretched and compressed respectively. When the push piston 116 stops moving, the two second springs 121 reset and reset the blocking plug 120. The push piston 116 moves, allowing the water to gradually fill the tank. The air in the connecting pipe 113 pushes the conical plug 122 in the exhaust pipe 115 and compresses the third spring 123, allowing the air in the connecting pipe to be discharged through the exhaust pipe 115. During the retraction of the moving frame 107, the piston 116 is pushed to gradually draw out the water flow in the connecting pipe 113. The blocking plug 120 moves in the opposite direction to allow the water flow to pass normally. The conical plug 122 in the water inlet pipe 114 is pushed and moved by the water flow, so that the recovered water in the steam recovery chamber 102 can be recovered into the water storage tank 101 through the water inlet pipe 114 and the connecting pipe 113.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A nonwoven fabric processing technology, characterized in that: Includes the following steps: Step 1: Melt spinning. The pre-dried raw material is sliced ​​and loaded into the feed hopper of the extruder. The sliced ​​raw material is mixed and melted inside the extruder and then extruded under pressure. The extruded melt is filtered to remove impurities and then pumped into the spinning system. The melt flows to the spinneret and is ejected in the form of filaments from its spinneret holes. Step 2: Nascent fiber airflow stretching. The airflow stretching equipment draws the side-blown, air-cooled filaments into the suction port. Under the acceleration of the high-speed, high-pressure stretching airflow blown in from the inside, the filaments quickly pass through the stretching nozzle and achieve the stretching process. Step 3: Fiber web formation. The formed continuous filaments are evenly dispersed and laid on the web forming curtain by mechanical filament splitting to form a non-woven fiber web. At the same time, the laid fiber filaments are collected and fixed by negative pressure web laying method. Before the non-woven fiber web enters the shaping area, water is evenly dripped onto its surface. Step 4: Web shaping. The non-woven web is heated and melted in a hot rolling mill and melted into non-woven fabric under pressure. The moisture inside the non-woven web turns into steam during hot pressing. Some of the steam is adsorbed at the bottom of the top of the non-woven web, and the other part of the steam is recovered after condensation. The heat inside the steam is used to heat up the water before it drips in. A vertical steering cylinder (3) is provided at the output end of the nonwoven fabric curtain. The nonwoven fabric changes from horizontal to vertical movement through the vertical steering cylinder (3). A dripping assembly (1) is provided at the top of the vertical steering cylinder (3). The hot rolling mill (2) is located directly below the dripping assembly (1) and is vertically positioned at the bottom of the output end of the nonwoven fabric curtain. The dripping assembly (1) includes a water storage tank (101), a steam recovery chamber (102), and a pushing cylinder (103). The water storage tank (101) is... A cooling plate (104) is provided on the side. One end of the cooling plate (104) extends into the interior of the water storage tank (101), and the other end of the cooling plate (104) extends to the top of the steam recovery chamber (102). A drip chamber (105) is provided at the bottom of the water storage tank (101). Several drip irrigation valve ports (106) are provided at the bottom of the drip chamber (105). A water supply mechanism is provided at the inlet of the water storage tank (101) and a recycling mechanism is provided on one side of the water supply mechanism.

2. The nonwoven fabric processing technology according to claim 1, characterized in that: The water supply mechanism includes a movable frame (107) and several rubber strips (109). One end of the movable frame (107) is fixedly connected to the output end of the push cylinder (103). Both ends of the movable frame (107) are fitted with sliding rails (108). The two sliding rails (108) are fixedly connected to the inner wall of the water storage tank (101). The tops of the several rubber strips (109) are fixedly connected with multiple connecting rods (110). The tops of the connecting rods (110) are movably inserted into the movable frame (107). A first spring (111) is fitted onto a section of the connecting rod (110) between the movable frame (107) and the rubber strips (109).

3. The nonwoven fabric processing technology according to claim 2, characterized in that: The recycling mechanism includes a water inlet pipe (112), a connecting pipe (113) at one end of the water inlet pipe (112), an inlet pipe (114) and an exhaust pipe (115) at one end of the connecting pipe (113), a push piston (116) inside the water inlet pipe (112), a push rod (117) at one end of the push piston (116), a push rod (117) at one end of the push rod (117) fixedly connected to a moving frame (107), a mounting frame (118) at one end of the connecting pipe (113), a blocking ring (119) fixedly connected in the middle of the mounting frame (118), a blocking plug (120) inside the blocking ring (119), a second spring (121) fixedly connected at both ends of the blocking plug (120), and a fixed connection at one end of each of the two second springs (121) to the mounting frame (118). A single-channel device is provided inside the inlet pipe (114) and the exhaust pipe (115).

4. The nonwoven fabric processing technology according to claim 3, characterized in that: The single-channel device includes a conical plug (122), one end of which is provided with a third spring (123), and the two single-channel devices are arranged in opposite directions.

5. The nonwoven fabric processing technology according to claim 3, characterized in that: The internal volume of the water inlet pipe (112) is the same as the internal volume of the connecting pipe (113), and the bottom of the connecting pipe (113) is bent.

6. The nonwoven fabric processing technology according to claim 2, characterized in that: The dripping assembly (1) operates as follows in step three: the cylinder (103) drives the moving frame (107) to move at a fixed time and distance. Both ends of the moving frame (107) move within the sliding track (108) and are supported by it. Meanwhile, the rubber strip (109) at the inlet of the dripping chamber (105) is pushed upwards and retracts. Multiple connecting rods (110) that provide a limiting effect on the rubber strip (109) move upwards accordingly, compressing the first spring (111), and the water... Water can enter the drip chamber (105) from the inside of the water storage tank (101) through the inlet of the drip chamber (105) for water supply. The water inside the drip chamber (105) can drip water onto the surface of the non-woven fiber web through the drip irrigation valve port (106). As the moving frame (107) moves to a working position, water is supplied through the inlet of the drip chamber (105). After the moving frame (107) moves to the end, it is pushed back by the cylinder (103).

7. The nonwoven fabric processing technology according to claim 4, characterized in that: In step four, the dripping component (1) operates as follows: the steam generated by the hot rolling mill (2) rises to the bottom of the cooling plate (104) of the nonwoven fiber web, condenses on the surface of the cooling plate (104) and falls into the steam recovery chamber (102) along its inclined surface. The heat of the steam is introduced into the water storage tank (101) through the cooling plate (104). During the movement of the frame (107), the push rod (117) drives the push piston (116) to gradually enter the water inlet pipe (112). Every time the push piston (116) enters a certain distance, the blocking plug (120) is pushed a certain distance so that the water in the water inlet pipe (112) can normally enter the connecting pipe (113). The second springs (121) at both ends of the blocking plug (120) are stretched and compressed respectively, while the push piston (116) stops. During movement, the two second springs (121) reset the blocking plug (120), pushing the piston (116) to move so that the water flow gradually fills the connecting pipe (113). The air in the connecting pipe (113) pushes the conical plug (122) in the exhaust pipe (115) and compresses the third spring (123), so that the air in the connecting pipe can be discharged through the exhaust pipe (115). During the retraction of the moving frame (107), the piston (116) is pushed to gradually draw out the water flow in the connecting pipe (113), and the blocking plug (120) moves in the opposite direction so that the water flow can pass normally. The conical plug (122) in the inlet pipe (114) is pushed by the water flow and moves, so that the recovered water in the steam recovery chamber (102) can be recovered to the water storage tank (101) through the inlet pipe (114) and the connecting pipe (113).

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