An apparatus for preparing an aqueous polyurethane resin

Abstract

The utility model discloses a kind of preparation devices of waterborne polyurethane resin, it is related to waterborne polyurethane resin material preparation technical field, to solve the purity quality problem of preparation product caused by impurity in polyurethane resin material in the preparation equipment of existing waterborne polyurethane resin.The servo motor is installed in the upper end surface of the cover plate, the lower end surface of the servo motor is provided with power output end, the power output end penetrates the cover plate and extends to below the cover plate, the lower end of the power output end is provided with central rotating rod, the central rotating rod is rotatably connected with the servo motor, the upper side of the outer wall of the central rotating rod is provided with first stirring rod, and the first stirring rod is provided with a group, the reserved cavity is installed in the outer wall one side of one end of a group of first stirring rods, the reserved cavity is integrally formed with the first stirring rod, the inside of the reserved cavity is provided with bolt, and the bolt is threadedly connected with the inner wall of the reserved cavity.

Description

Technical Field

[0001] This utility model relates to the field of waterborne polyurethane resin material preparation technology, specifically to a waterborne polyurethane resin preparation apparatus. Background Technology

[0002] Waterborne polyurethane resins refer to polyurethanes that use water as the dispersion medium. Entering the 1990s, with increased environmental awareness and regulations, the research and development of environmentally friendly waterborne polyurethanes received increasing attention. Their applications have expanded from leather finishing agents to coatings, adhesives, and other fields, gradually taking over the market share of solvent-based polyurethanes and representing the development direction of coatings and adhesives. Surprisingly, among waterborne resins, waterborne polyurethanes remain a representative of excellent resins and one of the hot topics in modern waterborne resin research.

[0003] For example, the Chinese authorized patent, CN216171939U, entitled "(A Hot-Melt Mixing Device for Polyurethane Resin Preparation)," includes: a first housing, with a feed pipe connected to the top of the first housing, a first support fixedly connected to the left side of the first housing, and a mounting frame fixedly connected to the bottom right side of the first housing. A first motor is fixedly connected to the top of the mounting frame, and a transmission rod is fixedly connected to the output end of the first motor. This invention, through the coordinated use of the first housing, feed pipe, first support, mounting frame, first motor, transmission rod, first pulley, support plate, first stirring shaft, second pulley, stirring blade, first discharge pipe, second housing, second motor, second stirring shaft, and stirring rod, effectively solves the problem of poor mixing efficiency and reduced production efficiency in traditional polyurethane resin raw material mixing processes. This device effectively improves the uniformity of raw material mixing, ensuring production quality and efficiency.

[0004] However, in existing waterborne polyurethane resin preparation equipment, impurities in the polyurethane resin material lead to purity and quality issues in the prepared product; therefore, it does not meet current requirements. In response, we propose a preparation device for waterborne polyurethane resin. Utility Model Content

[0005] The purpose of this invention is to provide a device for preparing waterborne polyurethane resin, so as to solve the problem of impurities in the polyurethane resin material in the existing waterborne polyurethane resin preparation equipment mentioned in the background art, which leads to the purity and quality problems of the prepared product.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a preparation apparatus for waterborne polyurethane resin, comprising: a preparation reaction vessel body and a cover plate, wherein the cover plate is installed above the preparation reaction vessel body, and hydraulic telescopic rods are provided on both sides of the upper surface of the cover plate, and two hydraulic telescopic rods are provided, wherein a hydraulic fixing rod is provided at the upper end of the two hydraulic telescopic rods;

[0007] Also includes:

[0008] A servo motor is installed on the upper end face of the cover plate. A power output end is provided on the lower end face of the servo motor. The power output end passes through the cover plate and extends to the bottom of the cover plate. A central rotating rod is provided at the lower end of the power output end. The central rotating rod is rotatably connected to the servo motor. A first stirring rod is provided on the upper side of both sides of the outer wall of the central rotating rod, and a set of first stirring rods is provided.

[0009] A reserved cavity is installed on one side of the outer wall of one end of a set of first stirring rods. The reserved cavity is integrally formed with the first stirring rod. A bolt is provided inside the reserved cavity, and the bolt is threaded to the inner wall of the reserved cavity. A snap-fit ​​cavity is provided above the inner part of the reserved cavity. An external rod is provided inside the reserved cavity and the snap-fit ​​cavity. A cleaning brush is provided on the front side of the outer wall of the external rod.

[0010] Preferably, a second stirring rod is provided below a group of the first stirring rods, and there are several groups of the second stirring rods.

[0011] Preferably, the preparation reactor body has a second inner cavity, and a filtration mechanism is provided inside the second inner cavity. An extension plate is provided around the outer side of the upper end face of the filtration mechanism, and a handle is provided on the upper end face of the extension plate.

[0012] Preferably, an observation plate is provided on the front end face of the preparation reactor body, and the observation plate is threadedly connected to the preparation reactor body by hexagonal bolts.

[0013] Preferably, the upper end face of the inner wall of the preparation reactor body is provided with a protruding buckle, and a plurality of protruding buckles are provided; one end of the preparation reactor body is provided with a liquid infusion pipe; the lower end of the preparation reactor body is provided with an output pipe; and one end of the output pipe is provided with an output filter.

[0014] Preferably, the front end face of the output filter is provided with a rotating cover plate, and the rotating cover plate is threadedly rotatably connected to the output filter. The output filter is provided with a first inner cavity, and a filter cover is provided inside the first inner cavity.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention utilizes a filter mechanism consisting of a first stirring rod on the outer wall of a central rotating rod, a reserved cavity, bolts, a snap-fit ​​cavity, an external rod, and a cleaning brush. During the preparation process, when cleaning the filter mechanism is required, the bolts are first removed, then the external rod is installed into the reserved cavity and snap-fit ​​cavity, and finally secured with bolts. The servo motor is then activated, causing the rotating first stirring rod to drive the two external rods to rotate. The cleaning brush on the outer wall of the external rod effectively stirs and mixes the material clumps in the filter mechanism, and loosens any impurities stuck inside, facilitating easy cleaning and emptying. This effectively and efficiently cleans the material or impurities on the filter mechanism, avoiding the purity and quality issues caused by impurities in the polyurethane resin material in existing water-based polyurethane resin preparation equipment.

[0017] By installing a filter cover inside the first inner cavity of the output filter, the purity of the output material product is further improved when the material is conveyed through the output pipeline. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the main body of the preparation reaction vessel of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the first stirring rod and the outer rod body of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the reserved cavity and the snap-fit ​​cavity of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the output filter of this utility model;

[0023] Figure 6 This is a partial structural diagram of the filter cover of this utility model;

[0024] In the diagram: 100, main body of the preparation reactor; 1001, infusion pipeline; 1002, output pipeline; 1003, output filter; 100301, first inner cavity; 100302, filter cover; 1004, rotating cover plate; 101, observation plate; 102, hexagonal bolt; 103, second inner cavity; 104, protruding buckle; 200, sealing plate; 201, servo motor; 202, power output end; 203, central rotating rod; 204, first stirring rod; 20401, reserved cavity; 20402, bolt; 20403, buckle cavity; 205, second stirring rod; 300, hydraulic fixing rod; 301, hydraulic telescopic rod; 400, filtration mechanism; 401, outer extension plate; 402, handle; 500, external rod body; 501, cleaning brush. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1

[0027] Please see Figures 1-6 An embodiment of this utility model provides: a preparation device for waterborne polyurethane resin, comprising: a preparation reaction vessel body 100 and a cover plate 200, the cover plate 200 being installed above the preparation reaction vessel body 100, and two hydraulic telescopic rods 301 being provided on both sides of the upper end face of the cover plate 200, and two hydraulic telescopic rods 301 being provided, with hydraulic fixing rods 300 provided at the upper ends of the two hydraulic telescopic rods 301.

[0028] Also includes:

[0029] A servo motor 201 is installed on the upper end face of the cover plate 200. A power output end 202 is provided on the lower end face of the servo motor 201. The power output end 202 passes through the cover plate 200 and extends to the bottom of the cover plate 200. A central rotating rod 203 is provided at the lower end of the power output end 202. The central rotating rod 203 is rotatably connected to the servo motor 201. A first stirring rod 204 is provided on the upper side of both sides of the outer wall of the central rotating rod 203, and a set of first stirring rods 204 is provided.

[0030] A reserved cavity 20401 is installed on one side of the outer wall of one end of a set of first stirring rods 204. The reserved cavity 20401 and the first stirring rods 204 are integrally formed. A bolt 20402 is provided inside the reserved cavity 20401 and is threaded to the inner wall of the reserved cavity 20401. A snap-fit ​​cavity 20403 is provided at the upper part of the interior of the reserved cavity 20401. An external rod 500 is provided inside the reserved cavity 20401 and the snap-fit ​​cavity 20403. A cleaning brush 501 is provided on the front side of the outer wall of the external rod 500.

[0031] During the preparation process, when the filter mechanism 400 needs to be cleaned again, first remove the bolts 20402, then install the external rod 500 into the reserved cavity 20401 and the snap-fit ​​cavity 20403, and finally fix it with the bolts 20402. Then turn on the servo motor 201, and the rotating first stirring rod 204 drives the two external rods 500 to rotate. The cleaning brush 501 on the outer wall of the external rod 500 can effectively stir and mix the material clumps in the filter mechanism 400, and loosen the impurities stuck in the internal position of the filter mechanism 400, making it easy to clean and pour out.

[0032] Example 2

[0033] Please see Figure 2 A second stirring rod 205 is provided below a set of first stirring rods 204, and several sets of second stirring rods 205 are provided. A second inner cavity 103 is provided inside the preparation reactor body 100. A filter mechanism 400 is provided inside the second inner cavity 103. An extension plate 401 is provided around the outer side of the upper end face of the filter mechanism 400. A handle 402 is provided on the upper end face of the extension plate 401.

[0034] Please see Figure 1 and Figure 2 An observation plate 101 is provided on the front end face of the preparation reaction vessel body 100. The observation plate 101 is threadedly connected to the preparation reaction vessel body 100 by hexagonal bolts 102. A protruding buckle 104 is provided on the upper end face of the inner wall of the preparation reaction vessel body 100, and several protruding buckles 104 are provided. A liquid infusion pipe 1001 is provided at one end of the preparation reaction vessel body 100, and an output pipe 1002 is provided at the lower end of the preparation reaction vessel body 100. An output filter 1003 is provided at one end of the output pipe 1002.

[0035] The protruding buckle 104 allows it to pass through the extension plate 401 for effective fixation.

[0036] Please see Figure 1 , Figure 5 and Figure 6The output filter 1003 has a rotating cover plate 1004 on its front end face, and the rotating cover plate 1004 is threadedly connected to the output filter 1003. The output filter 1003 has a first inner cavity 100301 inside, and a filter cover 100302 is provided inside the first inner cavity 100301.

[0037] By using the filter cover 100302 installed inside the output filter 1003, the conveyed material can be effectively filtered again, and the output material can be purified again.

[0038] Working principle: The hydraulic telescopic rod 301 moves upward, causing the cover plate 200 to move upward, thus expanding the second inner cavity 103 inside the main body of the preparation reactor 100. Water-based polyurethane resin is then added into it. Finally, the hydraulic telescopic rod 301 extends downward, causing the cover plate 200 to close the main body of the preparation reactor 100. The preparation liquid is then transported through the infusion pipe 1001 into the second inner cavity 103, where it is mixed with the water-based polyurethane resin. During the preparation process, the servo motor 201 is activated, rotating the central rotating rod 203 via the power output end 202. This causes the first stirring rod 204 and the second stirring rod 205 to homogenize the preparation material inside the second inner cavity. The filter mechanism 400 inside 103 is fixed by the protruding buckle 104. The prepared material is output through the output pipe 1002 after passing through the filter mechanism 400. When cleaning the filter mechanism 400, first remove the bolt 20402, then install the external rod 500 into the reserved cavity 20401 and the buckle cavity 20403, and finally fix it with the bolt 20402. Then turn on the servo motor 201, and the rotating first stirring rod 204 drives the two external rods 500 to rotate. The cleaning brush 501 on the outer wall of the external rod 500 can effectively stir and mix the material clumps in the filter mechanism 400, and loosen the impurities stuck in the filter mechanism 400, making it easy to clean and pour out.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An apparatus for preparing waterborne polyurethane resin, comprising a preparation reactor body (100) and a cover plate (200), wherein the cover plate (200) is installed above the preparation reactor body (100), and hydraulic telescopic rods (301) are provided on both sides of the upper end face of the cover plate (200), and two hydraulic telescopic rods (301) are provided, wherein a hydraulic fixing rod (300) is provided at the upper end of the two hydraulic telescopic rods (301). Its features are: Also includes: A servo motor (201) is installed on the upper end face of the cover plate (200). A power output end (202) is provided on the lower end face of the servo motor (201). The power output end (202) passes through the cover plate (200) and extends to the bottom of the cover plate (200). A central rotating rod (203) is provided at the lower end of the power output end (202). The central rotating rod (203) is rotatably connected to the servo motor (201). A first stirring rod (204) is provided on the upper side of both sides of the outer wall of the central rotating rod (203), and a set of first stirring rods (204) is provided. A reserved cavity (20401) is installed on one side of the outer wall of one end of a set of first stirring rods (204). The reserved cavity (20401) and the first stirring rod (204) are integrally formed. A bolt (20402) is provided inside the reserved cavity (20401), and the bolt (20402) is threaded to the inner wall of the reserved cavity (20401). A snap-fit ​​cavity (20403) is provided at the top inside the reserved cavity (20401). An external rod body (500) is provided inside the reserved cavity (20401) and the snap-fit ​​cavity (20403). A cleaning brush (501) is provided on the front side of the outer wall of the external rod body (500).

2. The apparatus for preparing waterborne polyurethane resin according to claim 1, characterized in that: A second stirring rod (205) is provided below a set of the first stirring rod (204), and several sets of the second stirring rod (205) are provided.

3. The apparatus for preparing waterborne polyurethane resin according to claim 1, characterized in that: The preparation reactor body (100) is provided with a second inner cavity (103), and a filter mechanism (400) is provided inside the second inner cavity (103). An extension plate (401) is provided around the outer side of the upper end face of the filter mechanism (400), and a handle (402) is provided on the upper end face of the extension plate (401).

4. The apparatus for preparing waterborne polyurethane resin according to claim 1, characterized in that: An observation plate (101) is provided on the front end face of the preparation reactor body (100), and the observation plate (101) is threadedly connected to the preparation reactor body (100) by a hexagonal bolt (102).

5. The apparatus for preparing waterborne polyurethane resin according to claim 1, characterized in that: The upper end face of the inner wall of the preparation reactor body (100) is provided with a protruding buckle (104), and there are several protruding buckles (104). One end of the preparation reactor body (100) is provided with a liquid infusion pipe (1001), and the lower end of the preparation reactor body (100) is provided with an output pipe (1002). One end of the output pipe (1002) is provided with an output filter (1003).

6. The apparatus for preparing waterborne polyurethane resin according to claim 5, characterized in that: The front end face of the output filter (1003) is provided with a rotating cover plate (1004), and the rotating cover plate (1004) is threadedly connected to the output filter (1003). The output filter (1003) is provided with a first inner cavity (100301), and a filter cover (100302) is provided inside the first inner cavity (100301).

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