A curing agent dispersing device for waterborne polyurethane

Abstract

The utility model discloses a kind of curing agent dispersion devices for waterborne polyurethane, it includes: controller, dispersion bucket, apron, lifting plate, base, motor, range sensor and stirring rod, the dispersion bucket is set on base, first guide pillar is provided on base and located the both sides of dispersion bucket, first guide pillar top is provided with fixed base, apron is set between fixed base and dispersion bucket in a way that it can be lifted, lifting plate is set above apron in a way that it can be lifted, motor is set in lifting plate bottom, stirring rod is set in the bottom of motor and downwardly points to dispersion bucket, range sensor is set on apron and downwardly points to dispersion bucket, range sensor is connected with controller, and the adaptability to liquid level height is good, improve the security and efficiency of dispersion process.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane production technology, and in particular to a curing agent dispersion device for waterborne polyurethane. Background Technology

[0002] In the production process of waterborne polyurethane, it can be mixed with a curing agent. At room temperature, the waterborne polyurethane and the curing agent can coexist stably, facilitating transportation and storage. During subsequent heat treatment, the curing agent reacts with the waterborne polyurethane to form a cross-linked structure, which can improve the performance of the waterborne polyurethane.

[0003] To ensure the efficient reaction between the curing agent and waterborne polyurethane, the curing agent needs to be dispersed to improve its uniformity. Existing dispersion devices have a fixed stirring rod height during operation, which is poorly adaptable to varying liquid levels in the curing agent and waterborne polyurethane mixture, affecting dispersion efficiency and safety, and also making loading and unloading inconvenient. Improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a device for dispersing curing agents for waterborne polyurethane, thereby dispersing a mixture of waterborne polyurethane and curing agents and improving production efficiency and safety.

[0005] To achieve this objective, the present invention adopts the following technical solution: A dispersion device for a curing agent in waterborne polyurethane includes: a controller, a dispersion tank, a cover plate, a lifting plate, a base, a motor, a distance sensor, and a stirring rod. The dispersion tank is mounted on the base, and the base has first guide posts located on both sides of the dispersion tank. A fixed seat is mounted on the top of the first guide posts. The cover plate is movably mounted between the fixed seat and the dispersion tank. The lifting plate is movably mounted above the cover plate. The motor is mounted at the bottom of the lifting plate, and the stirring rod is mounted at the bottom of the motor and points downward toward the dispersion tank. The distance sensor is mounted on the cover plate and points downward toward the dispersion tank. The distance sensor is connected to the controller for signal transmission, and the controller is connected to the motor for operation control.

[0006] The fixed base is provided with a first lifting drive device for driving the cover plate to rise and fall. The cover plate is provided with a second guide post located on both sides of the motor and passing through the lifting plate. A fixed plate is provided on the top of the second guide post. The fixed plate is provided with a second lifting drive device connected to the lifting plate.

[0007] The first and second lifting drive devices are hydraulic cylinders.

[0008] The controller is connected to the first lifting drive device and the second lifting drive device respectively to perform telescopic control.

[0009] The cover plate is provided with a guide sleeve corresponding to the first guide post.

[0010] The base has a recessed positioning groove corresponding to the dispersion barrel.

[0011] The controller is mounted on a fixed base.

[0012] The beneficial effects of this utility model are as follows: A curing agent dispersion device for waterborne polyurethane pours a mixture of curing agent and waterborne polyurethane into a dispersion tank, which is then transported to a base. A cover plate descends first to seal the top of the dispersion tank, improving safety during the dispersion process. A distance sensor detects the liquid level in the dispersion tank, and a lifting plate drives a motor to descend, causing the stirring rod to enter below the liquid surface. The rotation of the stirring rod disperses the mixture of curing agent and waterborne polyurethane. During dispersion, the stirring rod can rise and fall with the lifting plate, changing its stirring position and improving adaptability to liquid level, resulting in high dispersion efficiency. After dispersion is complete, the stirring rod rises and detaches from the dispersion tank, improving the convenience of loading and unloading the dispersion tank. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 yes Figure 1 A schematic diagram of the structure after the middle lifting plate has descended. Detailed Implementation

[0014] The following is combined Figures 1-2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0015] like Figure 1 and Figure 2 The waterborne polyurethane curing agent dispersion device shown includes: a controller 15, a dispersion tank 10, a cover plate 3, a lifting plate 4, a base 1, a motor 8, a distance sensor 9, and a stirring rod 12. The dispersion tank 10 is mounted on the base 1. In this embodiment, the base 1 is recessed and has a positioning groove 14 corresponding to the dispersion tank 10, which facilitates the positioning of the dispersion tank 10 and ensures high stability after loading.

[0016] The base 1 is provided with first guide posts 13 located on both sides of the dispersion barrel 10. The top of the first guide post 13 is provided with a fixed seat 2. The cover plate 3 is movably disposed between the fixed seat 2 and the dispersion barrel 10. In this embodiment, the cover plate 3 is provided with a guide sleeve 16 corresponding to the first guide post 13, which improves the stability of the lifting of the cover plate 3.

[0017] A first lifting drive device 5 is provided on the fixed base 2 to drive the cover plate 3 to rise and fall. The cover plate 3 is driven to rise and fall by the extension and retraction of the first lifting drive device 5. The lifting plate 4 is movably mounted above the cover plate 3, and the motor 8 is mounted at the bottom of the lifting plate 4 and rises and falls with the lifting plate 4.

[0018] The stirring rod 12 is located at the bottom of the motor 8 and points downward toward the dispersion tank 10 to stir and disperse the mixture of curing agent and water-based polyurethane in the dispersion tank 10. The distance sensor 9 is located on the cover plate 3 and points downward toward the dispersion tank 10, and can detect the liquid level of the mixture of curing agent and water-based polyurethane in the dispersion tank 10.

[0019] The ranging sensor 9 is connected to the controller 15 for signal transmission. The controller 15 is connected to the motor 8 for operation control. The controller 15 is mounted on the fixed base 2, does not occupy the bottom surface, and has a compact structure.

[0020] The cover plate 3 is provided with second guide posts 11 located on both sides of the motor 8 and passing through the lifting plate 4, which guide the lifting plate 4 to move up and down. The top of the second guide post 11 is provided with a fixing plate 7, and the fixing plate 7 is provided with a second lifting drive device 6 connected to the lifting plate 4, which drives the lifting plate 4 and the motor 8 to move up and down.

[0021] In this embodiment, the first lifting drive device 5 and the second lifting drive device 6 are hydraulic cylinders, and the controller 15 is connected to the first lifting drive device 5 and the second lifting drive device 6 respectively to perform telescopic control, which is highly flexible.

[0022] Dispersion process: like Figure 1 As shown, the mixture of curing agent and water-based polyurethane is poured into the dispersion tank 10 and transported to the base 1 along with the dispersion tank 10. The cover plate 3 is lowered first to seal the top of the dispersion tank 10, thereby improving the safety of the dispersion process. Then, the liquid level in the dispersion tank 10 is detected by the distance sensor 9, and the motor 8 is lowered by the lifting plate 4, causing the stirring rod 12 to enter below the liquid surface. Figure 2 As shown, the mixing of the curing agent and water-based polyurethane is dispersed by the rotation of the stirring rod 12. During the dispersion process, the stirring rod 12 can be raised and lowered with the lifting plate 4 to change the stirring position, improving adaptability to the liquid level and resulting in high dispersion efficiency. After dispersion is complete, the stirring rod 12 rises and detaches from the dispersion tank. Figure 1 As shown, this improves the convenience of handling and loading / unloading the dispersion bucket 10.

[0023] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A device for dispersing a curing agent for waterborne polyurethane, characterized in that, include: The system comprises a controller, a dispersion tank, a cover plate, a lifting plate, a base, a motor, a distance sensor, and a stirring rod. The dispersion tank is mounted on the base, and the base has first guide posts located on both sides of the dispersion tank. A fixed seat is mounted on the top of the first guide posts. The cover plate is movably mounted between the fixed seat and the dispersion tank. The lifting plate is movably mounted above the cover plate. The motor is located at the bottom of the lifting plate, and the stirring rod is located at the bottom of the motor and points downward toward the dispersion tank. The distance sensor is mounted on the cover plate and points downward toward the dispersion tank. The distance sensor is connected to the controller for signal transmission, and the controller is connected to the motor for operation control.

2. The waterborne polyurethane curing agent dispersion device according to claim 1, characterized in that, The fixed base is provided with a first lifting drive device for driving the cover plate to rise and fall. The cover plate is provided with a second guide post located on both sides of the motor and passing through the lifting plate. The top of the second guide post is provided with a fixed plate. The fixed plate is provided with a second lifting drive device connected to the lifting plate.

3. The waterborne polyurethane curing agent dispersion device according to claim 2, characterized in that, The first and second lifting drive devices are hydraulic cylinders.

4. The waterborne polyurethane curing agent dispersion device according to claim 2, characterized in that, The controller is connected to the first lifting drive device and the second lifting drive device respectively to perform telescopic control.

5. The waterborne polyurethane curing agent dispersion device according to claim 1, characterized in that, The cover plate is provided with a guide sleeve corresponding to the first guide post.

6. The waterborne polyurethane curing agent dispersion device according to claim 1, characterized in that, The base has a recessed positioning groove corresponding to the dispersion barrel.

7. The waterborne polyurethane curing agent dispersion device according to claim 1, characterized in that, The controller is mounted on a fixed base.

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