A mixing device for producing a solvent-free polyurethane treating agent and a method of use

Abstract

The application relates to the technical field of treating agent production, in particular to a mixing device for solvent-free polyurethane treating agent production and a use method thereof. The mixing device for solvent-free polyurethane treating agent production and the use method thereof are characterized by that the raw materials in the mixing tank are sucked into the pump pipe through the upward movement of the lower disc, the lower disc drives the raw materials on the lower side of the pipe to move away from the rubber ring and enter the upper side of the pump pipe, with the upward movement of the lower disc again, the upper pressure of the lower disc pushes the raw materials on the upper side of the pipe out of the top end of the pump core through the through hole and the spray hole, the raw materials in the mixing tank are pumped and mixed through jet dispersion, compared with the traditional stirring rod rotation for stirring the raw materials, the jet mixing avoids the potential disturbance of the raw materials following the movement of the stirring rod on the equipment, improves the equipment operation stability, and avoids the uneven mixing caused by the overall movement of the raw material group.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of processing agent production, in particular to a mixing device for producing solvent-free polyurethane processing agent and a use method thereof. BACKGROUND

[0002] Polyurethane adhesive is an important part of the rapidly developing polyurethane processing agent, has excellent performance, and has been widely used in many aspects. It is one of the important varieties of the eight synthetic adhesives. Polyurethane adhesive has excellent shear strength and impact resistance, is suitable for various structural bonding fields, and has excellent flexibility. In the production process of polyurethane adhesive, a stirring device is needed to mix the raw materials.

[0003] The existing patent (publication number: CN114534567A) discloses a stirring device for producing polyurethane adhesive, which comprises a mixing tank. The top surface of the mixing tank is fixedly connected with a protective shell. The rear side of the inner cavity of the protective shell is fixedly connected with an adjusting box. The bottom of the inner cavity of the adjusting box is fixedly connected with a first motor. The invention has the advantages of good mixing effect through the cooperation of the mixing tank, the protective shell, the adjusting box, the first motor, the first threaded rod, the threaded sleeve, the adjusting rod, the cross rod, the support, the sliding rod, the sliding sleeve, the spring, the second motor, the stirring rod, the driving box, the third motor, the second threaded rod, the threaded pipe, the connecting rod, the push block and the pulley. The above-mentioned stirring device adopts a rotating stirring rod to mix the raw materials. The raw materials follow the rotating potential energy and have interference with the stability of the device. The large-scale stirring of the stirring rod is difficult to break up small lumps.

[0004] In view of this, we propose a mixing device for producing solvent-free polyurethane processing agent and a use method thereof. SUMMARY

[0005] The purpose of the present application is to provide a mixing device for producing solvent-free polyurethane processing agent and a use method thereof, to solve the problem that the existing stirring device adopts a rotating stirring rod to mix the raw materials, the raw materials follow the rotating potential energy and have interference with the stability of the device, and the large-scale stirring of the stirring rod is difficult to break up small lumps. In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a mixing device for producing solvent-free polyurethane processing agent, comprising a mixing tank, a motor fixedly installed on the top of the mixing tank, and a shaft rod rotatably arranged on the inner top wall of the mixing tank, wherein the top end of the shaft rod penetrates the mixing tank and is connected with the rotating shaft of the motor.

[0006] The inside of the mixing tank is provided with a homogenizer matched with the shaft rod.

[0007] Preferably, the homogenizer comprises a plurality of connecting rods fixedly connected to the bottom of the shaft rod, and the plurality of connecting rods are arranged in a ring shape along the shaft rod.

[0008] The end of the connecting rod away from the shaft is fixedly provided with a pressing table, which is provided with an annular structure matched with the rotating track of the connecting rod, and the end of the pressing table away from the shaft is upwardly bent.

[0009] The inner bottom wall of the mixing tank is fixedly provided with a plurality of pump pipes corresponding to the pressing table, and a pump core matched with the pressing table is movably arranged in the pump pipe.

[0010] The lower side of the surface of the pump core is provided with a lower disc, and the outer ring of the lower disc is fixedly provided with a rubber ring, and the outer ring of the rubber ring is upwardly formed into a tapered edge.

[0011] The lower side of the pump core is movably sleeved with a spring, and the two ends of the spring are respectively connected with the lower disc and the bottom of the pump pipe.

[0012] The lower side of the surface of the pump pipe is provided with two pump ports, and the two pump ports are symmetrically arranged, and the two pump ports are provided with baffles, and the upper side of the baffle is fixedly connected with the inner wall of the pump pipe through a steel sheet.

[0013] The inner side of the surface of the baffle is fixedly provided with a limiting edge wider than the pump port.

[0014] The pump core and the lower disc are provided with a wringing element.

[0015] Preferably, the wringing element includes a ring groove opened on the surface of the pump core, and the lower disc is slidably sleeved in the ring groove in the upward-downward direction.

[0016] The surface of the pump core is rotatably connected with an upper disc, and the upper disc is located above the lower disc, and the top of the upper disc is fixedly provided with a turbine through a support, and the turbine is movably sleeved outside the pump core.

[0017] The through hole is located between the upper disc and the lower disc.

[0018] The top of the lower disc is provided with two arc grooves, and the bottom of the upper disc is fixedly connected with two arc posts, and the two arc posts are movably connected in the two arc grooves, respectively.

[0019] The opposite sides of the surfaces of the lower disc and the upper disc are both inwardly recessed to form a tapered surface corresponding to the through hole.

[0020] A running-in device is arranged between the two tapered surfaces.

[0021] Preferably, the running-in device includes a plurality of tooth edges fixedly arranged on the tapered surface, and the plurality of tooth edges are equally divided into two groups, and the two groups of tooth edges are arranged on the two tapered surfaces in a ring array, respectively.

[0022] Preferably, the number of rubber rings is set to several, and the several rubber rings are vertically equidistantly arranged on the outer ring of the lower disc.

[0023] Preferably, the upper side of the steel sheet is fixed on the inner wall of the mixing tank by bolts, and the lower side of the steel sheet is fixed on the baffle by bolts.

[0024] Preferably, the top end of the pump core is a spherical surface.

[0025] A use method of a mixing device for producing a solvent-free polyurethane treatment agent, comprising the following steps:

[0026] S1, injecting the raw materials to be mixed into the mixing tank, and starting the motor to drive the pressure table to move in a circle through the shaft;

[0027] S2, in the process of rotating the pressure table, the pump core is intermittently pushed by the curved surface of the pressure table to move downward along the pump pipe, and after the pressure table moves away from the pump core, the pump core is pushed upward to reset by the spring;

[0028] S3, when the pump core and the lower disc move upward, the lower side inside the pump pipe is sucked, the baffle is pulled into the pipe to open the pump port by using negative pressure, and the raw materials in the mixing tank are sucked into the pump pipe, when the pump core and the lower disc move downward, the baffle is pushed into the pump port to close the pump pipe by the steel sheet, and the raw materials inside the pipe are pushed to enter the upper side inside the pump pipe by the downward pressure of the lower disc, with the downward pressure of the lower disc, the raw materials inside the pipe are pressed out from the top end of the pump core along the through hole and the jet hole, so that the raw materials in the mixing tank are pumped and mixed by jet dispersion;

[0029] S4, in the process of moving the pump core upward, the lower disc quantitatively slides along the ring groove to increase the gap between the lower disc and the upper disc, open the through hole to guide the raw materials to jet, and the raw materials that are not mixed uniformly cannot pass through the through hole and will be accumulated in the arc groove on the lower disc, when the pump core moves downward subsequently, the lower disc and the upper disc are pushed to fit to close the arc groove, and in the process of the raw materials inside the pipe entering the upper side inside the pipe, the raw materials passing through the turbine push the turbine and the upper disc to rotate, so that the arc post slides from one side of the arc groove to the other side, and the raw materials in the arc groove are crushed by the arc post.

[0030] S5, in the process of the arc post sliding from one side of the arc groove to the other side to crush the raw materials in the arc groove, the raw materials are pressed to escape along the conical surface and enter the through hole and the jet hole, and in the process of the upper disc rotating and pressing, the teeth edges between the lower disc and the upper disc rotate and interleave synchronously, so that the raw materials entering the through hole through the teeth edges are rotated and ground.

[0031] Compared with the prior art, the beneficial effects of the present application are:

[0032] In the application, the raw materials in the mixing tank are sucked into the pump pipe through the upward suction of the lower disc, the lower disc drives the lower side of the raw materials in the pipe to push away the rubber ring and enter the upper side of the pump pipe, and with the upward suction of the lower disc again, the upper pressure of the lower disc pushes the raw materials in the upper side of the pipe out of the top end of the pump core along the through hole and the injection hole, so that the raw materials in the mixing tank are pumped and dispersed by injection to realize tumbling and mixing. Compared with the traditional stirring rod rotation to stir the raw materials, the injection mixing avoids the potential disturbance of the raw materials following the stirring rod movement to the equipment, improves the equipment operation stability, and avoids the uneven mixing caused by the overall movement of the raw material group.

[0033] In the application, the oversized lumps of raw materials that are not uniformly mixed cannot pass through the through hole and will accumulate in the arc groove on the lower disc. When the pump core moves down subsequently, the lower disc is pushed to close the arc groove with the upper disc, and in the process of the raw materials in the lower side of the pipe entering the upper side of the pipe, the raw materials passing through the turbine drive the turbine and the upper disc to rotate, so that the arc pile slides from one side of the arc groove to the other side and extrudes the lumps of raw materials in the arc groove to crush them. Compared with the stirring rod, the arc pile extrusion can also process small lumps.

[0034] In the application, the lumps of raw materials in the arc groove are extruded by the arc pile sliding from one side to the other side, the raw materials are extruded along the conical surface and enter the through hole and the injection hole, so that in addition to the injection of the upward movement, the second downward injection is performed again, reducing the preparation time of the equipment injection mixing, and when the upper disc rotates and extrudes, the teeth of the lower disc and the upper disc rotate and interleave synchronously, so that the raw materials entering the through hole are rotated and ground, thereby enhancing the refinement degree of the raw material lumps in the second processing process and assisting in improving the homogeneity of the raw materials. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a perspective structural schematic diagram of the application;

[0036] Figure 2 It is a perspective structural sectional view of the application;

[0037] Figure 3 It is a perspective structural sectional view of the pump pipe of the application;

[0038] Figure 4 It is an enlarged view of A in the application; Figure 3

[0039] Figure 5 It is an exploded view of the pump pipe and the baffle in the application;

[0040] Figure 6 It is a perspective structural schematic diagram of the pump core, the upper disc and the lower disc in the application;

[0041] Figure 7 ​It is a partial exploded view of the pump pipe, the pump core, the upper disc and the lower disc in the application;

[0042] Figure 8 It is a bottom view of the turbine, the upper disc and the lower disc in the application;

[0043] Figure 9 It is a perspective structural sectional view of the pump pipe, the pump core, the upper disc and the lower disc in the application;

[0044] Figure 10 It is a front sectional view of the pump pipe, the pump core, the upper disc and the lower disc in the application.

[0045] In the figure: 1, mixing tank; 2, motor; 3, shaft; 4, homogenizer; 41, connecting rod; 42, pressing table; 43, pump pipe; 44, pump core; 45, sealing shaft sleeve; 46, lower disc; 47, rubber ring; 48, spring; 49, pump port; 410, baffle; 411, steel sheet; 412, injection hole; 413, through hole; 414, wringing piece; 4141, ring groove; 4142, upper disc; 4143, turbine; 4144, arc groove; 4145, arc pile; 4146, conical surface; 4147, grinding device; 41471, tooth edge. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the application will be apparently and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0047] Please refer to Figures 1 to 10 , the application provides a technical solution: a mixing device for producing a solvent-free polyurethane treatment agent, comprising a mixing tank 1, a motor 2 is fixedly installed at the top of the mixing tank 1, and a shaft 3 is rotationally arranged on the inner top wall of the mixing tank 1, the top end of the shaft 3 penetrates through the mixing tank 1 and is connected with the rotating shaft of the motor 2;

[0048] The inside of the mixing tank 1 is provided with a homogenizer 4 matched with the shaft 3, the raw materials to be mixed are injected into the mixing tank 1, and the motor 2 is started to drive the homogenizer 4 to uniformly mix the raw materials.

[0049] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 , the homogenizer 4 comprises a plurality of connecting rods 41 fixedly connected at the bottom of the shaft 3, and the plurality of connecting rods 41 are arranged in a ring shape along the shaft 3;

[0050] The end of the connecting rod 41 away from the shaft 3 is fixedly provided with a pressing table 42, which is provided in an annular structure matched with the rotating track of the connecting rod 41, and the end of the pressing table 42 away from the shaft 3 is upwardly bent;

[0051] The inner bottom wall of the mixing tank 1 is fixedly provided with a plurality of pump pipes 43 corresponding to the pressing table 42, and the pump pipes 43 are movably provided with pump cores 44 matched with the pressing table 42, the upper side of the inside of the pump pipe 43 is fixedly provided with a sealing shaft sleeve 45, and the pump core 44 is slidingly connected in the sealing shaft sleeve 45;

[0052] The lower side of the surface of the pump core 44 is provided with a lower disc 46, and the outer ring of the lower disc 46 is fixedly provided with a rubber ring 47, and the outer ring of the rubber ring 47 is upwardly formed into a tapered edge;

[0053] The lower side of the pump core 44 is movably sleeved with a spring 48, and the two ends of the spring 48 are respectively connected with the lower disc 46 and the bottom of the pump pipe 43, the spring 48 pushes the lower disc 46 and the pump core 44 to move upward, in the process of the shaft 3 driving the pressing table 42 to move in a circle, the pressing table 42 intermittently pushes the pump core 44 to move downward along the pump pipe 43 by using its curved surface, and after the pressing table 42 leaves the pump core 44, the pump core 44 is pushed to move upward to reset by using the spring 48;

[0054] The lower side of the surface of the pump pipe 43 is provided with two pump openings 49, and the two pump openings 49 are symmetrically arranged, and each of the two pump openings 49 is provided with a baffle 410, and the upper side of the baffle 410 is fixedly connected with the inner wall of the pump pipe 43 through a steel sheet 411, and the inner side of the surface of the baffle 410 is fixedly provided with a limiting edge wider than the pump opening 49, when the pump core 44 and the lower disc 46 move upward, the inside of the pump pipe 43 is sucked, the baffle 410 is pulled into the pipe to open the pump opening 49 by using negative pressure, and the raw materials in the mixing tank 1 are sucked into the pump pipe 43, when the pump core 44 and the lower disc 46 move downward, the steel sheet 411 pushes the baffle 410 into the pump opening 49 to close the pump pipe 43, and the downward pressure of the lower disc 46 drives the raw materials in the inside of the pipe to squeeze the rubber ring 47 and enter the upper side of the inside of the pump pipe 43;

[0055] The inside of the pump core 44 is provided with a spray hole 412, and the side surface of the pump core 44 is provided with a through hole 413 on the upper side of the lower disc 46, the through hole 413 is communicated with the spray hole 412, and the upper disc 46 is moved upward to suck, and the upward pressure of the lower disc 46 pushes the raw materials in the upper side of the pipe out of the top end of the pump core 44 along the through hole 413 and the spray hole 412;

[0056] The pump core 44 and the lower disc 46 are provided with a wringing member 414.

[0057] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10As shown, the wringing member 414 includes a ring groove 4141 opened on the surface of the pump core 44, and the lower disc 46 is slidingly sleeved in the ring groove 4141 in the up-down direction;

[0058] The surface of the pump core 44 is rotationally connected with an upper disc 4142, and the upper disc 4142 is located on the upper side of the lower disc 46. The top of the upper disc 4142 is fixedly installed with a turbine 4143 through a support, and the turbine 4143 is movably sleeved outside the pump core 44. In the process of the raw material entering from the lower side of the pipe to the upper side of the pipe, the raw material passing through the turbine 4143 pushes the turbine 4143 and the upper disc 4142 to rotate;

[0059] The through hole 413 is located between the upper disc 4142 and the lower disc 46;

[0060] The top of the lower disc 46 is provided with two arc grooves 4144, and the bottom of the upper disc 4142 is fixedly connected with two arc piers 4145, and the two arc piers 4145 are movably connected in the two arc grooves 4144, respectively. In the process of the pump core 44 moving upwards, the lower disc 46 quantitatively slides along the ring groove 4141, increases the gap between the lower disc 46 and the upper disc 4142, opens the through hole 413, and conducts the raw material injection. The overlarge lumps of raw material that are not mixed uniformly cannot pass through the through hole 413, and will be accumulated in the arc grooves 4144 on the lower disc 46. When the pump core 44 moves downwards subsequently, the lower disc 46 and the upper disc 4142 are pushed to abut and close the arc grooves 4144, and the arc piers 4145 slide from one side of the arc grooves 4144 to the other side, so as to extrude and crush the lumps of raw material in the arc grooves 4144;

[0061] The opposite sides of the surfaces of the lower disc 46 and the upper disc 4142 are concave to the center to form two conical surfaces 4146 corresponding to the through hole 413;

[0062] The two conical surfaces 4146 are provided with a grinding device 4147.

[0063] In the embodiment, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 10 The grinding device 4147 includes a plurality of tooth edges 41471 fixedly arranged on the conical surface 4146, and the plurality of tooth edges 41471 are equally divided into two groups. The two groups of tooth edges 41471 are arranged on the two conical surfaces 4146 in a ring array. The raw material escapes along the conical surface 4146 under pressure and enters the through hole 413 and the injection hole 412. When the upper disc 4142 rotates and extrudes, the tooth edges 41471 between the lower disc 46 and the upper disc 4142 rotate and interleave synchronously, so as to rotate and grind the raw material entering the through hole 413 through the tooth edges 41471.

[0064] In the embodiment, as shown in Figure 1 , Figure 2 ,Figure 3 、 Figure 4 、 Figures 5 to 10 As shown in the figure, the number of rubber rings 47 is set to several, and the several rubber rings 47 are vertically equidistantly arranged on the outer circle of the lower disc 46. The cooperation of the plurality of rubber rings 47 can improve the air-tightness effect of the upward suction of the lower disc 46.

[0065] In the embodiment, as shown in the figure, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figures 5 to 10 As shown in the figure, the upper side of the steel sheet 411 is fixed on the inner wall of the mixing tank 1 by bolts, and the lower side of the steel sheet 411 is fixed on the baffle plate 410 by bolts. The steel sheet 411 and the baffle plate 410 can be quickly disassembled and assembled through the bolts, which is convenient for users to maintain and repair.

[0066] In the embodiment, as shown in the figure, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figures 5 to 10 Figure 1 Figure 2 Figure 3 Figure 4 Figures 5 to 10 Figure 1 Figure 2 Figure 3 Figure 4 Figures 5 to 10 As shown in the figure, the top end of the pump core 44 is provided with a spherical surface. The cooperation of the spherical surface and the pressure table 42 can reduce the friction between the pump core 44 and the pressure table 42, improve the running smoothness, and reduce the wear of the equipment parts.

[0067] A use method of a mixing device for producing a solvent-free polyurethane treating agent, comprising the following steps:

[0068] S1, injecting the raw materials to be mixed into the mixing tank 1, and starting the motor 2 to drive the pressure table 42 to move in a circle through the shaft rod 3;

[0069] S2, in the process of rotating the pressure table 42, intermittently pushing the pump core 44 along the pump pipe 43 downward by the curved surface of the pressure table 42, and after the pressure table 42 leaves the pump core 44, pushing the pump core 44 to move upward to the original position by the spring 48;

[0070] S3, when the pump core 44 and the lower disc 46 move upward, sucking the lower side inside the pump pipe 43, opening the pump port 49 by pulling the baffle plate 410 into the pipe by negative pressure, and sucking the raw materials in the mixing tank 1 into the pump pipe 43, when the pump core 44 and the lower disc 46 move downward, pushing the baffle plate 410 into the pump port 49 to close the pump pipe 43 by the steel sheet 411, and driving the raw materials in the pipe to squeeze the rubber ring 47 to enter the upper side inside the pump pipe 43 by the downward pressure of the lower disc 46, with the upward suction of the lower disc 46 again, the raw materials in the pipe are pressed out from the top end of the pump core 44 along the through hole 413 and the jet hole 412 by the upward pressure of the lower disc 46, so that the raw materials in the mixing tank 1 are pumped and mixed by jet dispersion;

[0071] S4, in the process of moving on the pump core 44, the lower disc 46 slides along the ring groove 4141, increasing the gap between the lower disc 46 and the upper disc 4142, opening the through hole 413, to carry out the raw material guide injection, the non-uniformly mixed oversized lumps of raw material cannot pass through the through hole 413, and will be accumulated in the arc groove 4144 on the lower disc 46, when the subsequent pump core 44 moves down, the lower disc 46 is pushed to close the arc groove 4144 with the upper disc 4142, and in the process of the raw material in the pipe from the lower side to the upper side, the raw material passing through the turbine 4143 drives the turbine 4143 and the upper disc 4142 to rotate, so that the arc pile 4145 slides from one side of the arc groove 4144 to the other side, and extrudes the lumps of raw material in the arc groove 4144 to crush them;

[0072] S5, in the process of extruding the lumps of raw material in the arc groove 4144 from one side of the arc groove 4144 to the other side, the raw material escapes along the conical surface 4146 under pressure, and enters the through hole 413 and the injection hole 412, and in the process of extrusion of the upper disc 4142, the tooth edge 41471 between the lower disc 46 and the upper disc 4142 rotates synchronously and alternately, and the raw material passing through the tooth edge 41471 into the through hole 413 is rotated and ground.

[0073] The above shows and describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A mixing apparatus for producing solvent-free polyurethane treatment agents, comprising a mixing tank (1), characterized in that: A motor (2) is fixedly installed on the top of the mixing tank (1), and a shaft (3) is rotatably provided on the inner top wall of the mixing tank (1). The top end of the shaft (3) passes through the mixing tank (1) and is connected to the rotating shaft of the motor (2). The mixing tank (1) is equipped with a homogenizer (4) that cooperates with the shaft (3). The homogenizer (4) includes several connecting rods (41) fixedly connected to the bottom of the shaft (3), and the several connecting rods (41) are arranged in a ring array along the shaft (3); A pressure table (42) is fixedly installed at the end of the connecting rod (41) away from the shaft (3). The pressure table (42) is designed as an annular structure that adapts to the rotation trajectory of the connecting rod (41), and the end of the pressure table (42) away from the shaft (3) is bent upward. The mixing tank (1) has several pump pipes (43) fixedly installed on its inner bottom wall, which correspond to the pressure table (42). The pump pipes (43) are movably installed with pump cores (44) that cooperate with the pressure table (42). A sealing bushing (45) is fixedly installed on the upper side inside the pump pipes (43), and the pump cores (44) are slidably connected in the sealing bushing (45). A lower plate (46) is provided on the lower side of the surface of the pump core (44), and a rubber ring (47) is fixedly installed on the outer ring of the lower plate (46), with the outer ring of the rubber ring (47) forming a conical edge upward. A spring (48) is movably sleeved on the lower side of the pump core (44), and the two ends of the spring (48) are respectively connected to the bottom of the lower plate (46) and the bottom of the pump tube (43). The spring (48) pushes the lower plate (46) and the pump core (44) to move upward. Two pump ports (49) are opened on the lower side of the surface of the pump pipe (43), and the two pump ports (49) are symmetrically arranged. A baffle (410) is provided in each of the two pump ports (49), and the upper side of the baffle (410) is fixedly connected to the inner wall of the pump pipe (43) through a steel sheet (411). A limiting edge wider than the pump port (49) is fixedly provided on the inner side of the surface of the baffle (410). The pump core (44) has a spray hole (412) inside, and a through hole (413) is provided on the side surface of the pump core (44) and on the upper side of the lower plate (46). The through hole (413) is connected to the spray hole (412). The pump core (44) and the lower plate (46) are provided with a screw extruder (414).

2. The mixing device for producing solvent-free polyurethane treatment agent according to claim 1, characterized in that: The extrusion member (414) includes an annular groove (4141) formed on the surface of the pump core (44), and the lower plate (46) is slidably sleeved in the annular groove (4141) in the up-down direction; The surface of the pump core (44) is rotatably connected to an upper plate (4142), and the upper plate (4142) is located on the upper side of the lower plate (46). A turbine (4143) is fixedly installed on the top of the upper plate (4142) by a bracket, and the turbine (4143) is movably sleeved on the outside of the pump core (44). The through hole (413) is located between the upper plate (4142) and the lower plate (46); The top of the lower plate (46) has two arc grooves (4144), and the bottom of the upper plate (4142) is fixedly connected to two arc piles (4145), and the two arc piles (4145) are respectively movably connected in the two arc grooves (4144). The lower plate (46) and the upper plate (4142) have opposite sides that are concave towards the center to form a conical surface (4146) corresponding to the through hole (413). A break-in device (4147) is provided between the two conical surfaces (4146).

3. The mixing device for producing solvent-free polyurethane treatment agent according to claim 2, characterized in that: The break-in device (4147) includes a plurality of toothed ridges (41471) fixedly disposed on a conical surface (4146), and the plurality of toothed ridges (41471) are divided into two groups, and the two groups of toothed ridges (41471) are respectively disposed on two conical surfaces (4146) and arranged in a ring array.

4. The mixing device for producing solvent-free polyurethane treatment agent according to claim 3, characterized in that: The number of the rubber rings (47) is set to several, and the several rubber rings (47) are arranged vertically and equidistantly on the outer ring of the lower plate (46).

5. The mixing apparatus for producing a solvent-free polyurethane treatment agent according to claim 4, characterized in that: The upper side of the steel sheet (411) is fixed to the inner wall of the mixing tank (1) by bolts, and the lower side of the steel sheet (411) is fixed to the baffle (410) by bolts.

6. The mixing apparatus for producing solvent-free polyurethane treatment agent according to claim 5, characterized in that: The top of the pump core (44) is spherical.

7. The method of using the mixing device for producing a solvent-free polyurethane treatment agent according to claim 6, comprising the following steps: S1. Inject the raw materials to be mixed into the mixing tank (1), start the motor (2) and drive the pressure table (42) to perform circular motion through the shaft (3); S2. During the rotation of the pressure table (42), the pump core (44) is pushed down along the pump tube (43) by its own curved surface intermittently. After the pressure table (42) leaves the pump core (44), the pump core (44) is pushed up and back to its original position by the spring (48). S3. When the pump core (44) and lower plate (46) move upward, the lower side of the pump tube (43) is sucked in. The negative pressure pulls the baffle (410) into the tube to open the pump port (49) and sucks the raw material in the mixing tank (1) into the pump tube (43). When the pump core (44) and lower plate (46) move downward, the steel plate (411) pushes the baffle (410) into the pump port (49) to close the pump tube (43). The downward pressure of the lower plate (46) drives the raw material on the lower side of the tube to squeeze through the rubber ring (47) and enter the upper side of the pump tube (43). As the lower plate (46) moves upward again to suck, the upward pressure of the lower plate (46) pushes the raw material on the upper side of the tube out from the top of the pump core (44) along the through hole (413) and the spray hole (412). In this way, the raw material in the mixing tank (1) is pumped and dispersed by spray to achieve agitation and mixing. S4. During the upward movement of the pump core (44), the lower plate (46) slides down the annular groove (4141) in a measured manner, increasing the gap between the lower plate (46) and the upper plate (4142), opening the through hole (413) for raw material introduction and injection. Unmixed and excessively large clumps of raw material cannot pass through the through hole (413) and will accumulate in the arc groove (4144) on the lower plate (46). When the pump core (44) moves down, it pushes the lower plate (46) and the upper plate (4142) to fit together and close the arc groove (4144). During the process of the raw material on the lower side of the pipe entering the upper side of the pipe, the raw material passing through the turbine (4143) pushes the turbine (4143) and the upper plate (4142) to rotate, so that the arc pile (4145) slides from one side of the arc groove (4144) to the other side and squeezes the clumps of raw material in the arc groove (4144) to crush them. S5. During the process of the arc pile (4145) sliding from one side of the arc groove (4144) to the other side to squeeze the lumpy raw material in the arc groove (4144), the raw material is subjected to pressure and escapes along the cone surface (4146) and enters the through hole (413) and the spray hole (412). When the upper plate (4142) rotates and squeezes, the toothed edge (41471) between the lower plate (46) and the upper plate (4142) rotates and intersects synchronously to grind the raw material that enters the through hole (413) through the toothed edge (41471).

Images