Waterborne polyurethane proportioning and mixing equipment

Abstract

The utility model discloses waterborne polyurethane proportioning and mixing equipment in the field of waterborne polyurethane processing equipment, which comprises a stirring barrel and metering boxes, the metering boxes are fixedly connected to the left side and the right side of the top of the stirring barrel, a first partition plate is fixedly connected between the upper sides of the inner side walls of the stirring barrel, and a second partition plate is fixedly connected between the upper sides of the inner side walls of the stirring barrel. A motor is fixedly connected to the middle of the top of the first partition plate, the output end of the motor penetrates through the middle of the top of the first partition plate and extends to the lower side of the first partition plate, the output end of the motor is fixedly connected with a rotating shaft, the lower side of the outer side wall of the rotating shaft is sleeved with a bearing disc, and an annular groove is formed in the top of the bearing disc; a through hole is formed in the left side of the bottom of the inner cavity of the annular groove. According to the waterborne polyurethane proportioning and mixing equipment, the proportioning of waterborne polyurethane liquid raw materials is facilitated, the use efficiency of the waterborne polyurethane mixing equipment is improved, the mixing of the waterborne polyurethane liquid raw materials is facilitated, the mixing efficiency of the waterborne polyurethane is improved, and the use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of waterborne polyurethane processing equipment, in particular to a waterborne polyurethane proportioning and mixing equipment. Background Technique

[0002] Waterborne polyurethane is a new polyurethane system that uses water instead of organic solvents as the dispersion medium. It is also called water-dispersed polyurethane, water-based polyurethane or waterborne polyurethane. Waterborne polyurethane uses water as a solvent and has the advantages of no pollution, safety and reliability, excellent mechanical properties, good compatibility, and easy modification. During the processing of waterborne polyurethane, a mixing equipment is needed to mix the raw materials of waterborne polyurethane.

[0003] Currently, during the use of waterborne polyurethane mixing equipment, due to the simple structure of the existing mixing equipment, it is not convenient to proportion the liquid raw materials of waterborne polyurethane, and manual proportioning is required, which reduces the use efficiency of the waterborne polyurethane mixing equipment. At the same time, when the liquid raw materials of waterborne polyurethane enter the interior of the mixing equipment, they are all introduced in the same direction, and the introduction direction of the liquid raw materials of waterborne polyurethane is single, which is not conducive to the mixing of the liquid raw materials of waterborne polyurethane, reduces the mixing efficiency of waterborne polyurethane, and is not convenient to use. Therefore, we propose a waterborne polyurethane proportioning and mixing equipment. Content of the Utility Model

[0004] The purpose of the utility model is to provide a waterborne polyurethane proportioning and mixing equipment to solve the problems mentioned in the above background technique, that is, the existing mixing equipment has a simple structure, is not convenient to proportion the liquid raw materials of waterborne polyurethane, requires manual proportioning, reduces the use efficiency of the waterborne polyurethane mixing equipment, and at the same time, when the liquid raw materials of waterborne polyurethane enter the interior of the mixing equipment, they are all introduced in the same direction, and the introduction direction of the liquid raw materials of waterborne polyurethane is single, which is not conducive to the mixing of the liquid raw materials of waterborne polyurethane, reduces the mixing efficiency of waterborne polyurethane, and is not convenient to use.

[0005] To achieve the above object, the present utility model provides the following technical solutions: An aqueous polyurethane proportioning and mixing device, comprising a stirring barrel and a metering tank. The metering tank is fixedly connected to the left and right sides of the top of the stirring barrel. A first partition is fixedly connected between the upper sides of the inner side walls of the stirring barrel. A motor is fixedly connected to the middle of the top of the first partition. The output end of the motor penetrates through the middle of the top of the first partition and extends to the lower side of the first partition. The output end of the motor is fixedly connected to a rotating shaft. A receiving disk is sleeved on the lower side of the outer side wall of the rotating shaft. An annular groove is formed on the top of the receiving disk. A through hole is formed in the left side of the inner cavity bottom of the annular groove. A discharge valve is inserted into the right side of the bottom of the stirring barrel. A second partition is fixedly connected between the lower sides of the inner side walls of the metering tank. A metering pump is fixedly connected to the right side of the inner cavity bottom of the metering tank. The input end of the metering pump is inserted with a second conduit, and the second conduit penetrates between the inner cavity bottom of the metering tank and the top of the stirring barrel and is inserted into the top of the first partition. The end of the second conduit is fixedly connected to a first solenoid valve. A liquid level sensor is fixedly connected to the upper side of the left inner cavity wall of the metering tank.

[0006] As a further description of the above technical solution:

[0007] The bottom end of the rotating shaft is fixedly connected with a stirring member, and the stirring member is rotatably connected to the middle of the inner cavity bottom of the stirring barrel.

[0008] As a further description of the above technical solution:

[0009] The bottom of the stirring barrel is fixedly connected with a bracket, and the bracket is made of stainless steel.

[0010] As a further description of the above technical solution:

[0011] The left side of the top of the bracket is fixedly connected with a control box, and the control box is electrically connected to the motor, the metering pump, the first solenoid valve and the liquid level sensor.

[0012] As a further description of the above technical solution:

[0013] The output end of the metering pump is inserted with a first conduit, and the first conduit is inserted into the right side of the bottom of the second partition.

[0014] As a further description of the above technical solution:

[0015] A second solenoid valve is inserted into the left side of the top of the metering tank, and the second solenoid valve is electrically connected to the control box.

[0016] Compared with the prior art, the beneficial effects of the present utility model are:

[0017] 1. The waterborne polyurethane proportioning and mixing equipment controls the content of the waterborne polyurethane liquid raw material introduced into the metering tank through the provided metering tank in cooperation with the liquid level sensor and the second solenoid valve. Then, the waterborne polyurethane liquid raw material is quantitatively introduced into the stirring tank through the metering pump in cooperation with the first conduit, the second conduit, and the second solenoid valve, thereby controlling the proportion of the waterborne polyurethane liquid raw material, making it convenient for the mixing equipment to proportion the waterborne polyurethane liquid raw material and improving the use efficiency of the waterborne polyurethane mixing equipment.

[0018] 2. The waterborne polyurethane proportioning and mixing equipment has a receiving tray located below the first solenoid valve, and the waterborne polyurethane liquid raw material is introduced into the annular groove through the first solenoid valve. Then, the motor drives the receiving tray to rotate in cooperation with the rotating shaft, driving the waterborne polyurethane liquid raw material inside the annular groove to be introduced into the stirring tank through the through holes for mixing, making it convenient for the mixing equipment to mix the waterborne polyurethane liquid raw material, improving the waterborne polyurethane mixing efficiency, and being convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view structural schematic diagram of a waterborne polyurethane proportioning and mixing equipment proposed by the present utility model;

[0020] Figure 2 is the front view sectional structural schematic diagram of a waterborne polyurethane proportioning and mixing equipment proposed by the present utility model;

[0021] Figure 3 is a waterborne polyurethane proportioning and mixing equipment proposed by the present utility model Figure 2 the enlarged structural schematic diagram at A in;

[0022] Figure 4 is a waterborne polyurethane proportioning and mixing equipment proposed by the present utility model Figure 2 the enlarged structural schematic diagram at B in.

[0023] In the figure: 100, stirring tank; 110, first partition; 120, motor; 130, rotating shaft; 140, receiving tray; 141, annular groove; 142, through hole; 150, stirring member; 160, support; 170, discharge valve; 180, control box; 200, metering tank; 210, second partition; 220, metering pump; 230, first conduit; 240, second conduit; 250, first solenoid valve; 260, liquid level sensor; 270, second solenoid valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] The present utility model provides an aqueous polyurethane proportioning and mixing device, which is convenient for proportioning the liquid raw materials of aqueous polyurethane and for mixing the liquid raw materials of aqueous polyurethane. Please refer to Figures 1-4 , which includes a stirring barrel 100 and a metering box 200;

[0028] Please refer to again Figures 1-4, a first partition plate 110 is fixedly connected between the upper sides of the inner side walls of the stirring barrel 100. The first partition plate 110 is used to support the motor 120. A motor 120 is fixedly connected to the middle of the top of the first partition plate 110. The output end of the motor 120 penetrates through the middle of the top of the first partition plate 110 and extends to the lower side of the first partition plate 110. The output end of the motor 120 is fixedly connected to a rotating shaft 130. The motor 120 is used to drive the receiving tray 140 to rotate in cooperation with the rotating shaft 130. A receiving tray 140 is sleeved on the lower side of the outer side wall of the rotating shaft 130. An annular groove 141 is formed in the top of the receiving tray 140. A through hole 142 is formed in the left side of the inner cavity bottom of the annular groove 141. The receiving tray 140 is used to evenly sprinkle the imported aqueous polyurethane liquid raw material into the stirring barrel 100 in cooperation with the annular groove 141 and the through hole 142. A discharge valve 170 is inserted into the right side of the bottom of the stirring barrel 100. The discharge valve 170 is used to control the export of the aqueous polyurethane inside the stirring barrel 100. The stirring barrel 100 is used to support the metering box 200;

[0029] Please refer to again Figures 1-4 , a second partition plate 210 is fixedly connected between the lower sides of the inner side walls of the metering box 200. The second partition plate 210 is used to divide the internal space of the metering box 200. A metering pump 220 is fixedly connected to the right side of the inner cavity bottom of the metering box 200. The input end of the metering pump 220 is inserted with a second conduit 240. The second conduit 240 penetrates between the inner cavity bottom of the metering box 200 and the top of the stirring barrel 100 and is inserted into the top of the first partition plate 110. The metering pump 220 is used to import the aqueous polyurethane liquid raw material into the stirring barrel 100 in cooperation with the second conduit 240. The end of the second conduit 240 is fixedly connected to a first solenoid valve 250. The first solenoid valve 250 is used to control the export of the aqueous polyurethane liquid raw material through the second conduit 240. A liquid level sensor 260 is fixedly connected to the upper side of the left inner cavity wall of the metering box 200. The liquid level sensor 260 is used to measure the content of the aqueous polyurethane liquid raw material inside the metering box 200 in cooperation with the metering box 200. The metering box 200 is fixedly connected to the left and right sides of the top of the stirring barrel 100. The metering box 200 is used to store the aqueous polyurethane liquid raw material.

[0030] Please refer to again Figures 1-4 , the bottom end of the rotating shaft 130 is fixedly connected to a stirring member 150. The stirring member 150 is rotatably connected to the middle of the inner cavity bottom of the stirring barrel 100. The stirring member 150 stirs the aqueous polyurethane liquid raw material by means of the rotating shaft 130 and the motor 120.

[0031] Please refer to again Figures 1-4 , the bottom of the stirring barrel 100 is fixedly connected to a bracket 160. The bracket 160 is made of stainless steel. The bracket 160 made of stainless steel has high strength and corrosion resistance.

[0032] Please refer to again Figures 1-4 , on the upper left side of the top of the bracket 160, a control box 180 is fixedly connected, and the control box 180 is electrically connected to the motor 120, the metering pump 220, the first solenoid valve 250 and the liquid level sensor 260.

[0033] Please refer to again Figures 1-4 , the output end of the metering pump 220 is plugged with a first conduit 230, and the first conduit 230 is plugged into the bottom right side of the second partition 210. Through the first conduit 230, the aqueous polyurethane liquid raw material on the upper side of the second partition 210 can be extracted by means of the metering pump 220.

[0034] Please refer to again Figures 1-4 , a second solenoid valve 270 is plugged into the upper left side of the metering box 200, and the second solenoid valve 270 is electrically connected to the control box 180. The introduction of the aqueous polyurethane liquid raw material into the metering box 200 is controlled by the second solenoid valve 270.

[0035] In summary, by providing the metering box 200 in cooperation with the liquid level sensor 260 and the second solenoid valve 270 to control the content of the aqueous polyurethane liquid raw material introduced into the metering box 200, and then through the metering pump 220 in cooperation with the first conduit 230, the second conduit 240 and the second solenoid valve 270, the aqueous polyurethane liquid raw material is quantitatively introduced into the mixing barrel 100, so as to control the proportion of the aqueous polyurethane liquid raw material, making it convenient for the mixing equipment to mix the aqueous polyurethane liquid raw material and improving the use efficiency of the aqueous polyurethane mixing equipment.

[0036] In summary, by providing the receiving tray 140 below the first solenoid valve 250, and introducing the aqueous polyurethane liquid raw material into the annular groove 141 through the first solenoid valve 250, and then driving the receiving tray 140 to rotate by the motor 120 in cooperation with the rotating shaft 130, driving the aqueous polyurethane liquid raw material inside the annular groove 141 to be introduced into the mixing barrel 100 through the through holes 142 for mixing, making it convenient for the mixing equipment to mix the aqueous polyurethane liquid raw material, improving the aqueous polyurethane mixing efficiency and being convenient for use.

[0037] In specific use, personnel in the technical field first manually dock the second solenoid valve 270 with the input pipe of the aqueous polyurethane liquid raw material, then operate the control box 180 to preset the detection value of the liquid level sensor 260, and then open the second solenoid valve 270 to drive the aqueous polyurethane liquid raw material into the metering tank 200. Then, the liquid level sensor 260 detects the aqueous polyurethane liquid raw material. When the aqueous polyurethane liquid raw material in the metering tank 200 reaches the preset value of the liquid level sensor 260, the liquid level sensor 260 feeds back an electrical signal to the control box 180. The control box 180 automatically closes the second solenoid valve 270 and starts the metering pump 220, the first solenoid valve 250, and the motor 120. Then, the metering pump 220 cooperates with the first conduit 230 to extract the aqueous polyurethane liquid raw material, and introduces it into the lower side of the first partition 110 through the second conduit 240 and the first solenoid valve 250, and falls into the annular groove 141 inside the receiving tray 140. At the same time, the motor 120 cooperates with the rotating shaft 130 to drive the receiving tray 140 to rotate, driving the aqueous polyurethane liquid raw material inside the annular groove 141 to be at the edge of the annular groove 141 due to the centrifugal force of the rotation of the receiving tray 140, and sprinkle it into the stirring barrel 100 through the through holes 142. At the same time, the motor 120 cooperates with the rotating shaft 130 to drive the stirring member 150 to stir and mix the aqueous polyurethane liquid raw material inside the stirring barrel 100. Finally, after the mixing is completed, the discharge valve 170 is opened to discharge the aqueous polyurethane.

[0038] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. An aqueous polyurethane proportioning and mixing device, characterized in that: It includes a stirring barrel (100) and a metering box (200). The metering box (200) is fixedly connected to the left and right sides of the top of the stirring barrel (100). A first partition plate (110) is fixedly connected between the upper sides of the inner side walls of the stirring barrel (100). A motor (120) is fixedly connected to the middle of the top of the first partition plate (110). The output end of the motor (120) penetrates through the middle of the top of the first partition plate (110) and extends to the lower side of the first partition plate (110). The output end of the motor (120) is fixedly connected to a rotating shaft (130). A receiving tray (140) is sleeved on the lower side of the outer side wall of the rotating shaft (130). An annular groove (141) is opened on the top of the receiving tray (140). A through hole (142) is opened on the left side of the inner cavity bottom of the annular groove (141). A discharge valve (170) is inserted into the right side of the bottom of the stirring barrel (100). A second partition plate (210) is fixedly connected between the lower sides of the inner side walls of the metering box (200). A metering pump (220) is fixedly connected to the right side of the inner cavity bottom of the metering box (200). The input end of the metering pump (220) is inserted with a second conduit (240). The second conduit (240) penetrates between the inner cavity bottom of the metering box (200) and the top of the stirring barrel (100) and is inserted into the top of the first partition plate (110). The end of the second conduit (240) is fixedly connected to a first solenoid valve (250). A liquid level sensor (260) is fixedly connected to the upper side of the left inner cavity wall of the metering box (200).

2. The waterborne polyurethane proportioning and mixing equipment according to claim 1, characterized in that: The bottom end of the rotating shaft (130) is fixedly connected to a stirring member (150), and the stirring member (150) is rotatably connected to the middle of the inner cavity bottom of the stirring barrel (100).

3. The waterborne polyurethane proportioning and mixing equipment according to claim 1, characterized in that: The bottom of the stirring barrel (100) is fixedly connected to a bracket (160), and the bracket (160) is made of stainless steel.

4. The waterborne polyurethane proportioning and mixing equipment according to claim 3, characterized in that: A control box (180) is fixedly connected to the left side of the top of the bracket (160), and the control box (180) is electrically connected to the motor (120), the metering pump (220), the first solenoid valve (250), and the liquid level sensor (260).

5. The waterborne polyurethane proportioning and mixing equipment according to claim 1, characterized in that: The output end of the metering pump (220) is inserted with a first conduit (230), and the first conduit (230) is inserted into the right side of the bottom of the second partition plate (210).

6. The waterborne polyurethane proportioning and mixing equipment according to claim 1, characterized in that: A second solenoid valve (270) is inserted into the left side of the top of the metering box (200), and the second solenoid valve (270) is electrically connected to the control box (180).

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