Rotary viscometer for testing polyurethane adhesive

Abstract

The utility model relates to the technical field of viscometers, and discloses a rotary viscometer for polyurethane adhesive inspection, which comprises a base, a hydraulic cylinder, a motor, a rotor and a rotating speed display, the hydraulic cylinder is fixedly arranged on one side of the top of the base, and a mounting plate is fixedly arranged at the tail end of a piston rod of the hydraulic cylinder; the motor is fixedly mounted on the lower surface of the mounting plate, and one end of the rotor is fixedly connected with the output end of the motor; a sealing plate is slidably arranged on the shaft wall of the rotor, a fixing ring is rotatably arranged on the shaft wall of the rotor, the fixing ring is located above the sealing plate, a spring is fixedly arranged between the fixing ring and the sealing plate, and sliding mechanisms are arranged between the two sides of the fixing ring and the upper surface of the sealing plate. The polyurethane liquid inspection device is provided with a structure for sealing the opening of the container, so that the phenomenon of splashing in the process of inspecting the polyurethane liquid is avoided, and the inspection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of viscometers, in particular to a rotary viscometer for testing polyurethane adhesives. Background Art

[0002] At present, a rotary viscometer will be used for testing polyurethane adhesives. The rotary viscometer can be used to measure the viscosity and flow behavior of polymer liquids.

[0003] Among them, the publication (announcement) number: CN206095863U discloses a rotary viscometer, which includes a base, a vertically arranged support rod and a viscosity measuring device. One end of the support rod is fixedly connected to the base, and the other end is movably connected to the viscosity measuring device. The viscosity measuring device includes a rotor and a motor for driving the rotor. A bearing tray is arranged below the rotor, and a container for holding a sample to be tested is placed on the upper surface of the bearing tray.

[0004] In the above solution, the inspection is carried out by directly inserting the rotor into the container. However, it is found in the actual use process that: since the opening of the container is always open and there is no sealing structure between the rotor and the container, it is easy to cause the phenomenon of liquid splashing during the high-speed rotation of the rotor, resulting in liquid waste and contamination of the tabletop. For this reason, a rotary viscometer for testing polyurethane adhesives is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to solve the problems raised in the background art, and a rotary viscometer for testing polyurethane adhesives is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A rotary viscometer for testing polyurethane adhesives includes a base, a hydraulic cylinder, a motor, a rotor and a rotational speed display. The hydraulic cylinder is fixedly arranged on one side of the top of the base. The end of the piston rod of the hydraulic cylinder is fixedly provided with a mounting plate. The motor is fixedly installed on the lower surface of the mounting plate. One end of the rotor is fixedly connected to the output end of the motor; a sealing plate is slidably arranged on the shaft wall of the rotor and a fixing ring is rotatably arranged. The fixing ring is located above the sealing plate, and a spring is fixedly arranged between the fixing ring and the sealing plate. A sliding mechanism is arranged between the two sides of the fixing ring and the upper surface of the sealing plate.

[0008] Preferably, the sliding mechanism includes a slide bar and a slider. The slider is arranged on the side wall of the fixing ring. The slide bar is slidably arranged inside the slider, and the lower end of the slide bar is fixedly connected to the upper surface of the sealing plate.

[0009] Preferably, a sealing sliding sleeve is fixedly embedded in the middle of the sealing plate, and the sealing sliding sleeve is slidably connected to the rotor.

[0010] Preferably, a bearing is fixedly arranged inside the fixed ring, and the fixed ring is rotationally connected to the rotor through the bearing.

[0011] Preferably, a rubber sealing ring is fixedly arranged on the lower surface of the sealing plate.

[0012] Preferably, a protective frame is fixedly arranged on the outer wall of the rotor.

[0013] Preferably, a bearing tray is fixedly arranged at the top of the base and below the rotor.

[0014] Compared with the prior art, the present utility model provides a rotational viscometer for testing polyurethane adhesives, having the following beneficial effects:

[0015] 1. For the rotational viscometer for testing polyurethane adhesives, through the provided sealing plate, fixed ring and spring, when the rotor is retracted by the hydraulic cylinder and moves into the interior of the container, the sealing plate contacts and seals the top of the container. When the sealing plate contacts the container, the spring is compressed between the sealing plate and the fixed ring. At this time, the sealing plate has the function of elastic extrusion, so as to ensure that the sealing plate is in close contact with the opening of the container, and prevent the phenomenon of polyurethane liquid splashing out during the rotation of the rotor.

[0016] 2. For the rotational viscometer for testing polyurethane adhesives, through the provided sliding rod and slider, when the sealing plate is extruded and moved upward, the sliding rod slides inside the slider, which can ensure that the sealing plate and the fixed ring are integrated.

[0017] 3. For the rotational viscometer for testing polyurethane adhesives, through the rubber sealing ring arranged on the sealing plate, when the sealing plate contacts the opening of the container, the rubber sealing ring contacts the opening of the container, improving the contact tightness between the sealing plate and the container.

[0018] The parts not involved in this device are the same as or can be implemented by the prior art. The present utility model has a structure for sealing the opening of the container, avoiding the phenomenon of splashing during the testing of polyurethane liquid, and improving the testing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a rotational viscometer for testing polyurethane adhesives proposed by the present utility model;

[0020] Figure 2 is Figure 1 the bottom view of the sealing plate in

[0021] Figure 3 is Figure 1 the top view of the fixed ring in

[0022] In the figure: 1, base; 2, hydraulic cylinder; 3, motor; 4, rotor; 5, rotational speed display; 6, mounting plate; 7, sealing plate; 8, fixing ring; 9, spring; 10, sliding rod; 11, slider; 12, sealing sliding sleeve; 13, bearing; 14, rubber sealing ring; 15, protective frame; 16, supporting tray. Specific embodiments

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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 of the embodiments.

[0024] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying 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 thus should not be construed as a limitation to the present utility model.

[0025] Refer to Figures 1-3, A rotational viscometer for testing polyurethane adhesives, comprising a base 1, a hydraulic cylinder 2, a motor 3, a rotor 4 and a rotational speed display 5. The hydraulic cylinder 2 is fixedly arranged on one side of the top of the base 1. The end of the piston rod of the hydraulic cylinder 2 is fixedly provided with a mounting plate 6. The motor 3 is fixedly installed on the lower surface of the mounting plate 6. The rotational speed display 5 is also installed on the lower surface of the mounting plate 6. One end of the rotor 4 is fixedly connected to the output end of the motor 3. A protective frame 15 is fixedly arranged on the outer wall of the rotor 4. The protective frame 15 can protect the rotor 4. A bearing tray 16 is fixedly arranged on the top of the base 1 and below the rotor 4. The inside of the bearing tray 16 is used to place a container. When the hydraulic cylinder 2 retracts, the motor 3 and the rotor 4 move downward simultaneously until the lower end of the rotor 4 is inserted into the inside of the container. At this time, the motor 3 is turned on to work. The motor 3 can drive the rotor 4 to rotate and test the viscosity and flow of the polyurethane. A sealing plate 7 is slidably arranged on the shaft wall of the rotor 4 and a fixing ring 8 is rotatably arranged. A sealing sliding sleeve 12 is fixedly embedded in the middle of the sealing plate 7. The sealing sliding sleeve 12 is slidably connected to the rotor 4. The sealing sliding sleeve 12 enables the sealing plate 7 to slide sealingly on the outer wall of the rotor 4. A bearing 13 is fixedly arranged inside the fixing ring 8. The fixing ring 8 is rotatably connected to the rotor 4 through the bearing 13. The bearing 13 can ensure that the fixing ring 8 rotates on the outer wall of the rotor 4. The fixing ring 8 is located above the sealing plate 7, and a spring 9 is fixedly arranged between the fixing ring 8 and the sealing plate 7. When the rotor 4 moves into the inside of the container, the sealing plate 7 contacts and seals the top of the container. When the sealing plate 7 contacts the container, the sealing plate 7 squeezes the spring 9 between the sealing plate 7 and the fixing ring 8. At this time, the sealing plate 7 has the function of elastic extrusion, so as to ensure that the sealing plate 7 is in close contact with the opening of the container and prevent the polyurethane liquid from splashing out during the rotation of the rotor 4.

[0026] Referring to Figure 1 and 3 , A sliding mechanism is arranged between the two sides of the fixing ring 8 and the upper surface of the sealing plate 7. The sliding mechanism comprises a sliding rod 10 and a sliding block 11. The sliding block 11 is arranged on the side wall of the fixing ring 8. The sliding rod 10 is slidably arranged inside the sliding block 11, and the lower end of the sliding rod 10 is fixedly connected to the upper surface of the sealing plate 7. When the sealing plate 7 moves upward by extrusion, the sliding rod 10 slides inside the sliding block 11, which can ensure that the sealing plate 7 and the fixing ring 8 are integrated.

[0027] Referring to Figures 1-2 , A rubber sealing ring 14 is fixedly arranged on the lower surface of the sealing plate 7. When the sealing plate 7 contacts the opening of the container, the rubber sealing ring 14 contacts the opening of the container, improving the contact sealing performance between the sealing plate 7 and the container.

[0028] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A rotational viscometer for polyurethane adhesive inspection, comprising a base (1), a hydraulic cylinder (2), a motor (3), a rotor (4) and a rotational speed display (5), characterized in that, The hydraulic cylinder (2) is fixedly arranged on one side of the top of the base (1). The end of the piston rod of the hydraulic cylinder (2) is fixedly provided with a mounting plate (6). The motor (3) is fixedly installed on the lower surface of the mounting plate (6). One end of the rotor (4) is fixedly connected to the output end of the motor (3). A sealing plate (7) is slidably arranged on the shaft wall of the rotor (4), and a fixing ring (8) is rotatably arranged. The fixing ring (8) is located above the sealing plate (7), and a spring (9) is fixedly arranged between the fixing ring (8) and the sealing plate (7). A sliding mechanism is arranged between the two sides of the fixing ring (8) and the upper surface of the sealing plate (7).

2. The rotational viscometer for testing polyurethane adhesives according to claim 1, characterized in that, The sliding mechanism includes a sliding rod (10) and a sliding block (11). The sliding block (11) is arranged on the side wall of the fixing ring (8). The sliding rod (10) is slidably arranged inside the sliding block (11), and the lower end of the sliding rod (10) is fixedly connected to the upper surface of the sealing plate (7).

3. The rotational viscometer for testing polyurethane adhesives according to claim 1, wherein, A sealing sliding sleeve (12) is fixedly embedded in the middle of the sealing plate (7). The sealing sliding sleeve (12) is slidably connected to the rotor (4).

4. A rotational viscometer for testing polyurethane adhesives according to claim 1, characterized in that, A bearing (13) is fixedly arranged inside the fixing ring (8). The fixing ring (8) is rotatably connected to the rotor (4) through the bearing (13).

5. A rotational viscometer for testing polyurethane adhesives according to claim 1, characterized in that, A rubber sealing ring (14) is fixedly arranged on the lower surface of the sealing plate (7).

6. A rotational viscometer for testing polyurethane adhesives according to claim 1, characterized in that, A protective frame (15) is fixedly arranged on the outer wall of the rotor (4).

7. A rotational viscometer for testing polyurethane adhesives according to claim 1, characterized in that, A bearing tray (16) is fixedly arranged on the top of the base (1) and below the rotor (4).

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