Waterborne polyurethane coating feeding tool

Abstract

The utility model provides a waterborne polyurethane coating feeding tool, a propelling feeder comprises a propelling cylinder, a raw material tank and a hydraulic rod, the propelling cylinder is fixed on a mixed reaction kettle through a mounting seat, the propelling cylinder is hollow, a feeding pipe is arranged at the center of the bottom of the propelling cylinder, the other end of the feeding pipe is communicated with the mixed reaction kettle, and a discharge port is arranged at the center of the lower end of the raw material tank. A piston disc is further arranged in the raw material tank, a hole is formed in the center of the upper end of the raw material tank, the hydraulic rod is fixedly arranged above the propelling barrel, a telescopic piston rod on the hydraulic rod is inserted into the propelling barrel and located over the center of the raw material tank, a pressing plate is arranged on the lower portion of the piston rod, and the pressing plate can penetrate through the hole to push the piston disc to press downwards. According to the feeding tool, color-mixed raw materials are added into the mixing reaction kettle through the hydraulic rod, and the raw material tank is detachably connected with the propelling barrel, so that the raw material tanks of different types of raw materials can be replaced according to actual requirements, and the raw material tanks can be placed manually or by arranging a manipulator.

Description

Technical Field

[0001] The utility model relates to the field of coating production, in particular to a waterborne polyurethane coating feeding tool. Background Art

[0002] In the coating production process, dosing tools play a vital role. The quality, uniformity and production efficiency of the coating are closely related to the design and use of dosing tools. Traditional coating production dosing tools usually include manual and automatic types, each with different characteristics and applicable scenarios.

[0003] At present, when the paint is adjusted in color, colorant needs to be added, but the current manual feeding tools are not suitable for large-scale production scenarios. In the automatic feeding tools, if multiple colorants need to be added at different stages, multiple feeding nozzles are required, which will undoubtedly increase the number of pipes connected to the mixing reactor, thereby making the structure of the mixing reactor very complicated, affecting the use cost and later maintenance. Utility Model Content

[0004] The utility model is based on the above technical problems and proposes a waterborne polyurethane coating feeding tool.

[0005] A waterborne polyurethane coating feeding tool comprises: a propulsion feeder, the propulsion feeder comprises a propulsion cylinder, a raw material tank, and a hydraulic rod, the propulsion cylinder is fixed on a mixing reactor through a mounting seat, the interior of the propulsion cylinder is hollow, a feeding pipe is provided at the bottom center of the propulsion cylinder, the other end of the feeding pipe is connected to the mixing reactor, a discharge port is provided at the lower center of the raw material tank, a sealing film is provided at the discharge port, a piston disk is also provided in the raw material tank, an opening is provided at the upper center of the raw material tank, the hydraulic rod is fixedly arranged above the propulsion cylinder, a retractable piston rod on the hydraulic rod is inserted into the propulsion cylinder, the piston rod is located directly above the center of the raw material tank, a pressure plate is provided at the lower part of the piston rod, and the pressure plate can pass through the opening to push the piston disk downward.

[0006] Preferably, a sleeve is provided at the center of the bottom of the propulsion cylinder, the upper end of the sleeve is higher than the inner surface of the bottom plate of the propulsion cylinder, the upper end of the feeding pipe is inserted into the sleeve and the two are sealed and installed.

[0007] Preferably, a centrally raised pointed cone frame is provided at the upper end of the feeding pipe, and the highest point of the pointed cone frame is higher than the uppermost end of the sleeve.

[0008] Preferably, a fixing ring is provided at the upper end of the propulsion cylinder, the fixing ring is sleeved on the rear end of the hydraulic rod, and the fixing ring is fixedly mounted on the upper end of the propulsion cylinder through a plurality of connecting rods.

[0009] Preferably, a circular plate is further provided at the lower part of the piston rod. The circular plate is slidably installed in the propulsion cylinder. The piston rod passes through the center of the circular plate and is slidably connected to the circular plate. The pressing plate is located below the circular plate, and the diameter of the circular plate is larger than the diameter of the opening.

[0010] Preferably, an open door is provided on the outer side of the propulsion cylinder. The raw material tank can be placed into the propulsion cylinder from the door, and a cover is further provided at the door. The cover closes the door.

[0011] Beneficial effects: This feeding tool uses a hydraulic rod to add the raw materials for color mixing into the mixing reactor. The raw material tank and the propulsion cylinder are detachably connected, so the raw material tank of different types of raw materials can be replaced according to actual needs. The raw material tank can be placed manually or by a manipulator.

[0012] This feeding tool has a simple structure and is more convenient to clean compared to the feeding equipment with long pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 shows the structural schematic diagram of the present invention;

[0014] Figure 2 shows the structural schematic diagram of the propulsion feeder;

[0015] Figure 3 shows the sectional structural diagram of the propulsion feeder;

[0016] Figure 4 shows Figure 3 partial enlarged view of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0018] Such as Figures 1 to 4A feeding tool for waterborne polyurethane coatings shown in the figure includes: a propulsion feeder 3, which has a propulsion cylinder 301, a raw material tank 306, and a hydraulic rod 302. The propulsion cylinder 301 is fixed on the mixing reactor 1 through a mounting seat 4. The main material feeding pipe 2 of the mixing reactor 1 is arranged at the top. The inside of the propulsion cylinder 301 is hollow. An open door 308 is provided on the outer side of the propulsion cylinder 301. The raw material tank 306 can be placed into the propulsion cylinder 301 through the door 308. A cover 309 is also provided at the door 308 to close the door. A feeding pipe 5 is provided at the center of the bottom of the propulsion cylinder 301. The other end of the feeding pipe 5 is communicated with the mixing reactor 1. A discharge port 314 is provided at the center of the lower end of the raw material tank 306. A sealing film 315 is provided at the discharge port 314. The sealing film 315 is a torn film. A piston disc 312 is also provided in the raw material tank 306. The edge of the piston disc 312 can be made of rubber material. The movement of the piston disc 312 in the raw material tank 306 can extrude the raw materials in the raw material tank 306 from the bottom discharge port.

[0019] A sleeve 307 is provided at the center of the bottom of the propulsion cylinder 301. The upper end of the sleeve 307 is higher than the inner surface of the bottom plate of the propulsion cylinder 301. When the raw material tank 306 is placed into the propulsion cylinder 301, the discharge port at the lower end of the raw material tank 306 will be inserted onto the sleeve 307. At this time, the sealing film 315 is located above the sleeve 307 and will not be pierced.

[0020] In order to enable the normal discharge of the raw material tank 306, the upper end of the feeding pipe 5 is inserted into the sleeve 307 and the two are sealed and installed. A pointed cone frame 501 with a central upward protrusion is provided at the upper end of the feeding pipe 5. The highest point of the pointed cone frame 501 is higher than the uppermost end of the sleeve 307. The pointed cone frame 501 can tear the sealing film 315 from the center, and the periphery of the sealing film 315 remains fixed on the side wall of the discharge port.

[0021] In another achievable structure, the propulsion cylinder 301 is slidably connected to the mounting seat 4, and the sleeve 307 and the feeding pipe 5 are sealed and slidably installed. After the raw material tank 306 is placed, when the raw material tank 306 is further pressed downward, the feeding pipe 5 will move upward along the sleeve 307, so that the feeding pipe 5 will also penetrate through the sealing film 315 and be communicated with the raw material tank 306.

[0022] The pushing of the piston disc 312 depends on the hydraulic rod 302. An opening 310 is provided at the center of the upper end of the raw material tank 306. A 303 is provided at the upper end of the propulsion cylinder 301. The 303 is sleeved on the rear end of the hydraulic rod 302. The 303 is fixedly installed at the upper end of the propulsion cylinder 301 through multiple connecting rods 304. The telescopic piston rod on the hydraulic rod 302 is inserted into the propulsion cylinder 301. The piston rod is located directly above the center of the raw material tank 306. A pressing plate 311 is provided at the lower part of the piston rod. The pressing plate 311 can pass through the opening 310 to push the piston disc 312 downward.

[0023] A circular groove 313 is provided in the middle of the piston disc 312. The circular groove 313 is located at the center of the piston disc 312, so that the pressing plate 311 can just be inserted into the circular groove 313 to push the piston disc 312 downward.

[0024] A circular plate 305 is also provided at the lower part of the piston rod. The circular plate 305 is slidably installed in the propulsion cylinder 301. The piston rod passes through the center of the circular plate 305 and is slidably connected to the circular plate 305. The pressing plate 311 is located below the circular plate 305. The diameter of the circular plate 305 is larger than the diameter of the opening 310. There is a strong frictional force between the circular plate 305 and the piston rod. Therefore, when the piston rod extends downward, the circular plate 305 will generate a certain acting force on the raw material tank 306.

[0025] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An aqueous polyurethane coating feeding tool, characterized in that, Comprising: A propulsion feeder, the propulsion feeder having a propulsion cylinder, a raw material tank, and a hydraulic rod. The propulsion cylinder is fixed to the mixing reactor through a mounting seat. The interior of the propulsion cylinder is hollow. A feeding pipe is provided at the center of the bottom of the propulsion cylinder, and the other end of the feeding pipe communicates with the mixing reactor. An outlet is provided at the center of the lower end of the raw material tank, and a sealing film is provided at the outlet. A piston plate is further provided inside the raw material tank. An opening is provided at the center of the upper end of the raw material tank. The hydraulic rod is fixedly arranged above the propulsion cylinder, and the telescopic piston rod on the hydraulic rod is inserted into the propulsion cylinder. The piston rod is directly above the center of the raw material tank, and a pressing plate is provided at the lower part of the piston rod. The pressing plate can pass through the opening to push the piston plate downward.

2. The feeding tool for the waterborne polyurethane coating according to claim 1, characterized in that A sleeve is provided at the center of the bottom of the propulsion cylinder. The upper end of the sleeve is higher than the inner surface of the bottom plate of the propulsion cylinder. The upper end of the feeding pipe is inserted into the sleeve and the two are sealedly installed.

3. The feeding tool for the aqueous polyurethane coating according to claim 2, characterized in that, A tapered frame with a centrally lifted tip is provided at the upper end of the feeding pipe. The highest point of the tapered frame is higher than the uppermost end of the sleeve.

4. The feeding tool for the aqueous polyurethane coating according to claim 1, characterized in that, A fixing ring is provided at the upper end of the propulsion cylinder. The fixing ring is sleeved on the rear end of the hydraulic rod, and the fixing ring is fixedly installed at the upper end of the propulsion cylinder through a plurality of connecting rods.

5. The aqueous polyurethane coating feeding tool according to claim 1, characterized in that, A circular plate is further provided at the lower part of the piston rod. The circular plate is slidably installed in the propulsion cylinder. The piston rod passes through the center of the circular plate and is slidably connected to the circular plate. The pressing plate is located below the circular plate, and the diameter of the circular plate is larger than the diameter of the opening.

6. The feeding tool for the aqueous polyurethane coating according to claim 1, characterized in that An open door is provided on the outer side of the propulsion cylinder. The raw material tank can be placed into the propulsion cylinder from the door, and a cover is further provided at the door. The cover closes the door.

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