Premixing device for atomized polyurethane flexible foam

Abstract

The invention relates to the technical field of polyurethane flexible foam production equipment, in particular to an atomized polyurethane flexible foam premixing device which comprises a stirring barrel assembly, a filter shell assembly, a sealing cover assembly and a confluence plate assembly, the front side of the stirring barrel assembly is fixedly connected with the filter shell assembly, the upper side of the filter shell assembly is fixedly connected with the sealing cover assembly, and the confluence plate assembly is fixedly connected with the sealing cover assembly. The lower side of the filter shell assembly is fixedly connected with a confluence plate assembly, and the filter shell body, a first liquid pump, a filter screen, a sealing cover body, an air pump, a rotating frame, a cleaning brush, a confluence plate body, an adjusting pipeline and a second liquid pump are arranged, so that the device can convey materials through the first liquid pump; the pressure intensity in the filter shell body is adjusted through the air pump and the pressure sensor, the filtering efficiency of the filter screen can be improved, meanwhile, water can be reversely injected into the confluence plate body and the filter shell body through the second liquid pump and the adjusting pipeline, and the filter screen can be rapidly cleaned.

Description

Technical Field

[0001] The invention relates to the technical field of polyurethane soft foam production equipment, in particular to a premix device for atomizing polyurethane soft foam. Background Art

[0002] Atomized polyurethane soft foam refers to a soft polyurethane foam plastic with a certain elasticity. It is the most widely used polyurethane product. The pore structure of atomized polyurethane soft foam is mostly open-cell. Its production and preparation process mainly includes the steps of raw material premixing, foaming, aging, foam lifting, cutting and conveying. In the initial stage of production and preparation, it is necessary to use a premixing device to evenly mix various raw materials to form a slurry, and then filter the slurry, and then convey the slurry after premix treatment to the foaming device for subsequent processing.

[0003] There are some problems in the use of the existing partially atomized polyurethane soft foam premix device: first, the filter screen structure of the existing partially atomized polyurethane soft foam premix device is relatively simple, and only relies on the deadweight of the product liquid for filtering, and its filtration efficiency is low; second, the filter screen of the existing partially atomized polyurethane soft foam premix device does not have an automatic cleaning mechanism, and it is necessary to manually disassemble the equipment and clean the filter screen regularly, which is time-consuming and labor-intensive. Therefore, in view of the above problems, a premix device for atomized polyurethane soft foam is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a premix device for atomizing polyurethane soft foam, so as to solve the problem that some existing premix devices for atomizing polyurethane soft foam have low filtering efficiency and require manual periodic disassembly of the equipment to clean the filter screen.

[0005] To achieve the above object, the present invention provides the following technical solutions: A premix device for atomizing polyurethane soft foam comprises a stirring barrel assembly, a filter shell assembly, a sealing cover assembly and a manifold assembly, wherein the front side of the stirring barrel assembly is fixedly connected to the filter shell assembly, the upper side of the filter shell assembly is fixedly connected to the sealing cover assembly, and the lower side of the filter shell assembly is fixedly connected to the manifold assembly; the stirring barrel assembly comprises a first support frame and a stirring barrel body, the upper side of the first support frame is fixedly connected to the stirring barrel body, the upper side of the stirring barrel body is fixedly connected to a feed valve, the front side of the stirring barrel body is fixedly connected to a discharge valve, the upper middle position of the stirring barrel body is fixedly connected to a first motor, the bottom main shaft of the first motor is fixedly connected to a first rotating rod, and the first rotating rod is fixedly connected to the bottom main shaft of the first motor. A group of stirring shafts are fixedly connected to the left and right sides of the moving rod, and each group of stirring shafts is fixedly connected to a cleaning plate on one side close to the inner wall of the stirring barrel body, the front side of the discharge valve is fixedly connected to the first material delivery pipe, and the filter shell assembly comprises a second support frame and a filter shell body, the upper side of the second support frame is fixedly connected to the filter shell body, the rear side of the filter shell body is fixedly connected to the first supporting plate, the upper side of the first supporting plate is fixedly connected to the first liquid pump, the rear side of the first liquid pump is fixedly connected to the first material delivery pipe, the lower side of the first liquid pump is fixedly connected to the second material delivery pipe, the front end of the second material delivery pipe is fixedly connected to the filter shell body, the lower side of the filter shell body is fixedly connected to the anti-drop frame, and the overpressure A filter screen is fixedly connected to the lowermost end of the inner side of the filter housing body, a first drain pipe is fixedly connected to the front side of the filter housing body, the sealing cover assembly includes a sealing cover body and a sealing strip, the upper side bolts of the filter housing body are connected to the sealing cover body, a sealing strip is fixedly connected in the sealing groove of the sealing cover body, an air pump is fixedly connected to the upper front half of the sealing cover body, a pressure sensor is fixedly connected to the upper rear half of the sealing cover body, a second motor is fixedly connected to the middle position of the upper side of the sealing cover body, a second rotating rod is fixedly connected to the bottom spindle of the second motor, a liquid level gauge is fixedly connected in the mounting groove of the second rotating rod, and rotating The bottom ends of the front and rear sides of the second rotating rod are fixedly connected with cleaning brushes, the baffle assembly includes a baffle body and an adjusting pipe, the lower side of the filter shell body is fixedly connected with the baffle body, the bottom middle position of the baffle body is fixedly connected with the adjusting pipe, the bottom four corners of the first supporting plate are fixedly connected with mounting rods, the bottom end of the mounting rod is fixedly connected with the second supporting plate, the upper side of the second supporting plate is fixedly connected with the second liquid pump, the rear side of the second liquid pump is fixedly connected with the first water pipe, the front side of the second liquid pump is fixedly connected with the second water pipe, the front end of the second water pipe is fixedly connected with the adjusting pipe, and the front end of the adjusting pipe is fixedly connected with the second drain pipe.

[0006] Preferably, the bottom main shaft of the first motor is rotatably connected to the mixing barrel body, the uppermost shaft of each group of the mixing shafts contacts the inner upper side wall of the mixing barrel body, the lowermost shaft of each group of the mixing shafts contacts the inner lower side wall of the mixing barrel body, and the relative outer side surfaces of the two cleaning plates contact the inner side wall of the mixing barrel body.

[0007] Preferably, bolt connection blocks are provided on the left and right sides of the filter shell body, the second feed pipe passes through the first supporting plate, a switch valve is provided at the front end of the second feed pipe, the filter screen is a "cross" shaped frame, the lower side of the filter screen is fitted with an anti-detachment frame, a switch valve is provided at the rear end of the first drain pipe, and the second feed pipe and the first drain pipe are both bent pipes.

[0008] Preferably, bolt connecting blocks are provided on both sides of the sealing cover body, a circular sealing groove is provided on the lower side of the sealing cover body, the sealing strip is a circular rubber strip, the bottom main shaft of the second motor is rotatably connected to the sealing cover body, and an installation groove is provided on the front side of the second rotating rod.

[0009] Preferably, the lower end of the liquid level meter and the upper end of the cleaning brush are located in the same horizontal plane, the rotating frames are all "U"-shaped bent frames, the relative outer sides of the two rotating frames are in contact with the inner wall of the filter shell body, the tops of the rotating frames are in contact with the sealing cover body, and the bottoms of the rotating frames and the cleaning brush are in contact with the filter screen.

[0010] Preferably, the manifold body is a circular hopper structure, the regulating pipe is a "cross" shaped pipe, the front and rear ends and the upper and lower ends of the regulating pipe are provided with switch valves, and the second water pipe is a bent pipe.

[0011] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, by providing a filter shell body, a first liquid pump, a filter screen, a sealing cover body, an air pump, a rotating frame, a cleaning brush, a manifold body, an adjusting pipe and a second liquid pump, the device can feed materials through the first liquid pump, adjust the pressure inside the filter shell body through the air pump and the pressure sensor, prevent the material liquid from adhering to the filter shell body and the sealing cover body through the rotating frame, and prevent the filter screen from being blocked through the cleaning brush, thereby improving the filtering efficiency of the filter screen, so that the device can quickly filter the material liquid. At the same time, the device can reversely inject water into the manifold body and the filter shell body through the second liquid pump and the adjusting pipe, clean the filter shell body and the sealing cover body through the rotating frame, and clean the filter screen through the cleaning brush, so as to quickly clean the filter screen. The device does not need to be manually disassembled for cleaning, which is more time-saving and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the stirring barrel assembly of the present invention; Figure 3 This is a cross-sectional view of the structure of the stirring barrel assembly of the present invention; Figure 4 This is a schematic diagram of the installation structure of the first rotating rod of the present invention; Figure 5 This is a schematic diagram of the installation structure of the manifold assembly of the present invention; Figure 6 It is a cross-sectional view of the installation structure of the manifold assembly of the present invention; Figure 7 This is a schematic diagram of the structure of the filter housing assembly of the present invention; Figure 8 It is a cross-sectional view of the filter housing assembly structure of the present invention; Fig. 9 This is a schematic diagram of the structure of the sealing cover assembly of the present invention; Fig.10 It is a cross-sectional view of the sealing cover assembly structure of the present invention; Fig.11 It is a schematic diagram of the structure of the busbar assembly of the present invention; Fig.12 It is a cross-sectional view of the structure of the busbar assembly of the present invention.

[0013] In the figure: 1. stirring barrel assembly; 101. first support frame; 102. stirring barrel body; 103. inlet valve; 104. outlet valve; 105. first motor; 106. first rotating rod; 107. stirring shaft; 108. cleaning plate; 2. filter shell assembly; 201. second support frame; 202. filter shell body; 203. first supporting plate; 204. first liquid pump; 205. first feed pipe; 206. second feed pipe; 207. anti-drop frame; 208. filter screen; 209. first drain Tube; 3, sealing cover assembly; 301, sealing cover body; 302, sealing strip; 303, air pump; 304, pressure sensor; 305, second motor; 306, second rotating rod; 307, liquid level meter; 308, rotating frame; 309, cleaning brush; 4, manifold assembly; 401, manifold body; 402, regulating pipe; 403, mounting rod; 404, second supporting plate; 405, second liquid pump; 406, first water pipe; 407, second water pipe; 408, second drain pipe. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0016] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0017] See also Figure 1-12 , the present invention provides a technical solution: A premix device for atomizing polyurethane soft foam, comprising a stirring barrel assembly 1, a filter shell assembly 2, a sealing cover assembly 3 and a manifold assembly 4, wherein the front side of the stirring barrel assembly 1 is fixedly connected to the filter shell assembly 2, the upper side of the filter shell assembly 2 is fixedly connected to the sealing cover assembly 3, and the lower side of the filter shell assembly 2 is fixedly connected to the manifold assembly 4; the stirring barrel assembly 1 comprises a first support frame 101 and a stirring barrel body 102, the upper side of the first support frame 101 is fixedly connected to the stirring barrel body 102, the upper side of the stirring barrel body 102 is fixedly connected to a feed valve 103, the front side of the stirring barrel body 102 is fixedly connected to a discharge valve 104, the upper middle position of the stirring barrel body 102 is fixedly connected to a first motor 105, the bottom main shaft of the first motor 105 is fixedly connected to the stirring barrel body 102, and the stirring barrel body 102 is fixedly connected to the feeding valve 103. A first rotating rod 106 is fixedly connected, and a group of stirring shafts 107 are fixedly connected to the left and right sides of the first rotating rod 106. A cleaning plate 108 is fixedly connected to one side of each stirring shaft 107 close to the inner wall of the stirring barrel body 102. The front side of the discharge valve 104 is fixedly connected to the first delivery pipe 205. The filter shell assembly 2 includes a second support frame 201 and a filter shell body 202. The upper side of the second support frame 201 is fixedly connected to the filter shell body 202, and the rear side of the filter shell body 202 is fixedly connected to the first supporting plate 203. The upper side of the first supporting plate 203 is fixedly connected to the first liquid pump 204, and the rear side of the first liquid pump 204 is fixedly connected to the first delivery pipe 205. The lower side of the first liquid pump 204 is fixedly connected to the second delivery pipe 206, the front end of the second feed pipe 206 is fixedly connected to the filter shell body 202, the lower side of the filter shell body 202 is fixedly connected with an anti-dropping frame 207, the innermost lower end of the filter shell body 202 is fixedly connected with a filter screen 208, the front side of the filter shell body 202 is fixedly connected with a first drain pipe 209, the sealing cover assembly 3 includes a sealing cover body 301 and a sealing strip 302, the upper side of the filter shell body 202 is bolted with the sealing cover body 301, the sealing strip 302 is fixedly connected in the sealing groove of the sealing cover body 301, the upper front half of the sealing cover body 301 is fixedly connected with an air pump 303, the upper rear half of the sealing cover body 301 is fixedly connected with a pressure sensor 304, and the upper middle position of the sealing cover body 301 is fixedly connected with the pressure sensor 304. A second motor 305 is fixedly connected to the second motor 305, a second rotating rod 306 is fixedly connected to the bottom main shaft of the second motor 305, a liquid level meter 307 is fixedly connected in the mounting groove of the second rotating rod 306, a rotating frame 308 is fixedly connected to the left and right sides of the second rotating rod 306, a cleaning brush 309 is fixedly connected to the lower ends of the front and rear sides of the second rotating rod 306, the baffle assembly 4 includes a baffle body 401 and an adjusting pipe 402, the baffle body 401 is fixedly connected to the lower side of the filter shell body 202, the adjusting pipe 402 is fixedly connected to the middle position of the bottom of the baffle body 401, the four bottom corners of the first support plate 203 are fixedly connected to the mounting rods 403, and the bottom end of the mounting rod 403 is fixedly connected to the second support plate 404,The upper side of the second supporting plate 404 is fixedly connected to a second liquid pump 405, the rear side of the second liquid pump 405 is fixedly connected to a first water delivery pipe 406, the front side of the second liquid pump 405 is fixedly connected to a second water delivery pipe 407, the front end of the second water delivery pipe 407 is fixedly connected to the regulating pipe 402, and the front end of the regulating pipe 402 is fixedly connected to a second drain pipe 408.

[0018] Furthermore, the bottom main shaft of the first motor 105 is rotatably connected to the mixing barrel body 102, the uppermost shaft of each group of mixing shafts 107 contacts the inner upper side wall of the mixing barrel body 102, the lowermost shaft of each group of mixing shafts 107 contacts the inner lower side wall of the mixing barrel body 102, and the relative outer side surfaces of the two cleaning plates 108 contact the inner side wall of the mixing barrel body 102.

[0019] Furthermore, bolt connection blocks are provided on the left and right sides of the filter shell body 202, the second feed pipe 206 passes through the first supporting plate 203, a switch valve is provided at the front end of the second feed pipe 206, the filter screen 208 is a "cross" frame, the lower side of the filter screen 208 is in contact with the anti-detachment frame 207, and a switch valve is provided at the rear end of the first drain pipe 209. The second feed pipe 206 and the first drain pipe 209 are both bent pipes.

[0020] Furthermore, bolt connection blocks are provided on the left and right sides of the sealing cover body 301, a circular sealing groove is provided on the lower side of the sealing cover body 301, the sealing strip 302 is a circular rubber strip, the bottom main shaft of the second motor 305 is rotatably connected to the sealing cover body 301, and an installation groove is provided on the front side of the second rotating rod 306.

[0021] Furthermore, the lower end of the liquid level meter 307 and the upper end of the cleaning brush 309 are located in the same horizontal plane, the rotating frames 308 are all "U"-shaped bending frames, the relative outer sides of the two rotating frames 308 are in contact with the inner wall of the filter shell body 202, the tops of the rotating frames 308 are in contact with the sealing cover body 301, and the bottoms of the rotating frames 308 and the cleaning brush 309 are in contact with the filter screen 208.

[0022] Furthermore, the manifold body 401 is a circular hopper structure, the regulating pipe 402 is a "cross" shaped pipe, the front and rear ends and the upper and lower ends of the regulating pipe 402 are provided with switch valves, and the second water pipe 407 is a bent pipe.

[0023] Workflow: Before use, fix the device in a suitable position, connect the lower end of the regulating pipe 402 to the feed port of the foaming device, connect the rear end of the first water pipe 406 to the tap water pipe, connect the lower ends of the first drain pipe 209 and the second drain pipe 408 to the waste water tank, and then turn on the power. The feed valve 103, the discharge valve 104, the first motor 105, the first liquid pump 204, the second feed pipe 206, the first drain pipe 209, the air pump 303, the pressure sensor 304, the second motor 305, the liquid level meter 307, the regulating pipe 402 and the second liquid pump 405 are all electrical components. The device is equipped with an external controller, and the feed valve 103, the discharge valve 104, the first motor 105, the first liquid pump 204, the second feed pipe 206, the first drain pipe 209, the air pump 303, the pressure sensor 304, the second motor 305, the liquid level meter 307, the regulating pipe 402 and the second liquid pump 405 are all electrical components. The device is equipped with an external controller, and the external controller can be manually operated to adjust the feed valve 103, the discharge valve 104, the first motor 1 05, the operating states of the first liquid pump 204, the second feed pipe 206, the first drain pipe 209, the air pump 303, the pressure sensor 304, the second motor 305, the liquid level meter 307, the regulating pipe 402 and the second liquid pump 405, all of which are prior art; when using the device, first open the feed valve 103, add different kinds of raw materials into the mixing barrel body 102 on the upper side of the first support frame 101, and then start the first motor 105, and drive the first rotating rod 106 to rotate by the first motor 105, so as to rotate the stirring shaft 107 and the cleaning plate 108, stir by the stirring shaft 107, and scrape the material adhering to the inner wall of the mixing barrel body 102 by the cleaning plate 108, so that the material liquid can be quickly mixed and evenly mixed, and then start The discharge valve 104 and the switch valve of the second feed pipe 206 are opened, and the first liquid pump 204 is started at the same time. The first liquid pump 204 fixed by the first supporting plate 203 transports the feed liquid to the filter shell body 202 through the first feed pipe 205 and the second feed pipe 206. The filter shell body 202 on the upper side of the second support frame 201 prevents the filter screen 208 from being dislocated by the anti-detachment frame 207, and the feed liquid is filtered through the filter screen 208. At this time, the switch valve of the first drain pipe 209 is closed, and some feed liquid is retained on the upper side of the filter screen 208. The upper side of the filter shell body 202 is fixedly connected to the sealing cover body 301, and the sealing strip 302 is used to ensure the sealing of the connection. Therefore, the upper half of the filter shell body 202 is a closed space. The air pump 303 is started, and the pressure The force sensor 304, the second motor 305 and the liquid level meter 307 input air into the closed space of the filter shell body 202 through the air pump 303, and the pressure inside the filter shell body 202 is monitored by the pressure sensor 304, so that the pressure inside the filter shell body 202 is greater than the external environment pressure. The filtration efficiency of the filter screen 208 can be improved by the pressure difference, and the switch valves at the upper and lower ends of the regulating pipe 402 are opened. At this time, the switch valves at the front and rear ends of the regulating pipe 402 are closed, and the filtered liquid can be collected through the manifold body 401 and flow from the lower end of the regulating pipe 402 to the foaming device. At the same time, the second motor 305 drives the second rotating rod 306 to rotate, and the material adhered to the inner wall of the filter shell body 202 is scraped off by the rotating frame 308.The filter screen 208 is swept by a cleaning brush 309 to prevent the filter screen 208 from being blocked, and the volume of the retained liquid in the filter shell body 202 is monitored by a liquid level meter 307. When the volume of the retained liquid in the filter shell body 202 is large, it indicates that a large number of larger particles are trapped on the upper side of the filter screen 208 and need to be cleaned. First, the feed valve 103, the discharge valve 104, the first motor 105, the first liquid pump 204, the air pump 303 and the pressure sensor 304 are closed. After a period of time, the residual liquid in the filter shell body 202 is filtered, and only larger particles are left on the upper side of the filter screen 208. The switch valves of the second feed pipe 206 and the first drain pipe 209 are closed. The second liquid pump 405 is started, and the tap water is introduced into the manifold body 401 through the first water pipe 406, the second water pipe 407 and the regulating pipe 402 by the second liquid pump 405 fixed by the mounting rod 403 and the second supporting plate 404. At this time, the second motor 305 is still rotating, and the filter shell body 202 and the manifold body 401 can be cleaned by tap water, the side wall of the filter shell body 202 and the lower side of the sealing cover body 301 can be cleaned by the rotating frame 308, and the filter screen 208 can be swept by the cleaning brush 309. The filter screen 208 is quickly cleaned. When the liquid level meter 307 detects that the filter shell body 202 is full of water, the second liquid pump 405 is turned off to close the switch valve at the rear end of the regulating pipe 402, and then the switch valve of the first drain pipe 209 is opened to allow the tap water to carry the particles trapped by the filter screen 208 and flow out from the first drain pipe 209. Then, the switch valve at the front end of the regulating pipe 402 is opened to allow the remaining tap water to carry the residual particles on the inner wall of the conduit body 401 and flow out from the second drain pipe 408 to complete the cleaning. The device can feed materials through the first liquid pump 204, and adjust the pressure inside the filter shell body 202 through the air pump 303 and the pressure sensor 304. The rotating frame 308 prevents the liquid from adhering to the filter housing body 202 and the sealing cover body 301, and the cleaning brush 309 prevents the filter screen 208 from being blocked, so that the filtering efficiency of the filter screen 208 can be improved, so that the device can quickly filter the liquid. At the same time, the device can reversely inject water into the manifold body 401 and the filter housing body 202 through the second liquid pump 405 and the regulating pipe 402, clean the filter housing body 202 and the sealing cover body 301 through the rotating frame 308, and clean the filter screen 208 through the cleaning brush 309, so that the filter screen 208 can be quickly cleaned. The device can be cleaned without manually disassembling the equipment, which is relatively time-saving and labor-saving.

[0024] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A premix device for atomizing polyurethane soft foam, comprising a stirring barrel assembly (1), a filter shell assembly (2), a sealing cover assembly (3) and a manifold assembly (4), characterized in that: The front side of the mixing barrel assembly (1) is fixedly connected to a filter shell assembly (2), the upper side of the filter shell assembly (2) is fixedly connected to a sealing cover assembly (3), and the lower side of the filter shell assembly (2) is fixedly connected to a manifold assembly (4); the mixing barrel assembly (1) comprises a first support frame (101) and a mixing barrel body (102), the upper side of the first support frame (101) is fixedly connected to the mixing barrel body (102), the upper side of the mixing barrel body (102) is fixedly connected to a feed valve (103), the front side of the mixing barrel body (102) is fixedly connected to a discharge valve (104), and the middle position of the upper side of the mixing barrel body (102) is fixedly connected to a first motor (105), and the first motor (105) is fixedly connected to the mixing barrel body (102). The bottom main shaft of the mixing barrel (105) is fixedly connected to a first rotating rod (106), and a group of stirring shafts (107) are fixedly connected to the left and right sides of the first rotating rod (106), and a cleaning plate (108) is fixedly connected to one side of each group of stirring shafts (107) close to the inner wall of the mixing barrel body (102). The front side of the discharge valve (104) is fixedly connected to the first material delivery pipe (205), and the filter shell assembly (2) comprises a second support frame (201) and a filter shell body (202), the upper side of the second support frame (201) is fixedly connected to the filter shell body (202), and the rear side of the filter shell body (202) is fixedly connected to the first supporting plate (203), and the upper side of the first supporting plate (203) is fixedly connected to the filter shell body (202). A first liquid pump (204) is connected, a first material delivery pipe (205) is fixedly connected to the rear side of the first liquid pump (204), a second material delivery pipe (206) is fixedly connected to the lower side of the first liquid pump (204), a front end of the second material delivery pipe (206) is fixedly connected to the filter shell body (202), an anti-dropping frame (207) is fixedly connected to the lower side of the filter shell body (202), a filter screen (208) is fixedly connected to the lowermost end of the inner side of the filter shell body (202), a first drain pipe (209) is fixedly connected to the front side of the filter shell body (202), and the sealing cover assembly (3) comprises a sealing cover body (301) and a sealing strip (302), the upper side of the filter shell body (202) The side bolts are connected to a sealing cover body (301); a sealing strip (302) is fixedly connected in a sealing groove of the sealing cover body (301); an air pump (303) is fixedly connected to the upper front half of the sealing cover body (301); a pressure sensor (304) is fixedly connected to the upper rear half of the sealing cover body (301); a second motor (305) is fixedly connected to the middle position of the upper side of the sealing cover body (301); a second rotating rod (306) is fixedly connected to the bottom main shaft of the second motor (305); a liquid level meter (307) is fixedly connected in an installation groove of the second rotating rod (306); and rotating frames (308) are fixedly connected to the left and right sides of the second rotating rod (306).The second rotating rod (306) is fixedly connected to a cleaning brush (309) at the bottom ends on both sides thereof; the baffle assembly (4) comprises a baffle body (401) and an adjusting pipe (402); the baffle body (401) is fixedly connected to the bottom side of the filter housing body (202); the adjusting pipe (402) is fixedly connected to the middle position of the bottom of the baffle body (401); the four bottom corners of the first supporting plate (203) are fixedly connected to mounting rods (403); the mounting rods (403) are fixedly connected to the bottom of the baffle body (401); and the baffle body (401) is fixedly connected to the bottom of the baffle body (401). 3) is fixedly connected to the bottom end thereof with a second supporting plate (404), the upper side of the second supporting plate (404) is fixedly connected to a second liquid pump (405), the rear side of the second liquid pump (405) is fixedly connected to a first water delivery pipe (406), the front side of the second liquid pump (405) is fixedly connected to a second water delivery pipe (407), the front end of the second water delivery pipe (407) is fixedly connected to the regulating pipe (402), and the front end of the regulating pipe (402) is fixedly connected to a second drain pipe (408).

2. The premix device for atomizing polyurethane soft foam according to claim 1, characterized in that: The bottom main shaft of the first motor (105) is rotatably connected to the stirring barrel body (102); the uppermost shaft of each group of stirring shafts (107) contacts the inner upper side wall of the stirring barrel body (102); the lowermost shaft of each group of stirring shafts (107) contacts the inner lower side wall of the stirring barrel body (102); and the opposite outer side surfaces of the two cleaning plates (108) contact the inner side wall of the stirring barrel body (102).

3. The premix device for atomizing polyurethane soft foam according to claim 1, characterized in that: Bolt connection blocks are provided on the left and right sides of the filter shell body (202); the second material delivery pipe (206) passes through the first support plate (203); a switch valve is provided at the front end of the second material delivery pipe (206); the filter screen (208) is a "cross"-shaped frame; the lower side of the filter screen (208) is in contact with the anti-detachment frame (207); a switch valve is provided at the rear end of the first drainage pipe (209); and the second material delivery pipe (206) and the first drainage pipe (209) are both bent pipes.

4. The premix device for atomizing polyurethane soft foam according to claim 1, characterized in that: Bolt connection blocks are provided on both left and right sides of the sealing cover body (301); a circular sealing groove is provided on the lower side of the sealing cover body (301); the sealing strip (302) is a circular rubber strip; the bottom main shaft of the second motor (305) is rotatably connected to the sealing cover body (301); and a mounting groove is provided on the front side of the second rotating rod (306).

5. The premix device for atomizing polyurethane soft foam according to claim 1, characterized in that: The lower end of the liquid level meter (307) and the upper end of the cleaning brush (309) are located on the same horizontal plane, the rotating frames (308) are both "U"-shaped bent frames, the relative outer sides of the two rotating frames (308) are in contact with the inner side wall of the filter shell body (202), the tops of the rotating frames (308) are in contact with the sealing cover body (301), and the bottoms of the rotating frames (308) and the cleaning brush (309) are in contact with the filter screen (208).

6. The premix device for atomizing polyurethane soft foam according to claim 1, characterized in that: The manifold body (401) is a circular hopper structure, the regulating pipe (402) is a "cross"-shaped pipe, the front and rear ends and the upper and lower ends of the regulating pipe (402) are provided with switch valves, and the second water delivery pipe (407) is a bent pipe.

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