Polyurethane raw material adding device with weighing function

Abstract

The utility model discloses a polyurethane raw material adding device with a weighing function, relates to the technical field of polyurethane raw material adding, and aims to solve the technical problem that the current polyurethane raw material adding device with the weighing function is inconvenient to uniformly discharge raw materials into a polyurethane production stirring tank, and the polyurethane raw material adding device comprises a weighing frame. By means of the triangular support, the conduction pipeline, the driving structure, the material disc and other structures, when the discharging structure discharges raw materials from the discharging end pipe, the raw materials can fall into the conduction pipeline, then are discharged through a discharging port of the conduction pipeline and fall into a material guiding cover of the material disc, and in the process, the raw materials are discharged through the discharging port of the conduction pipeline. The driving structure drives the second conduction pipe of the conduction pipeline and the material disc to rotate, and then raw materials are discharged from the material guide cover and are discharged in a centrifugal diffusion manner, so that the raw materials can be uniformly scattered into the polyurethane production stirring tank, and the subsequent raw materials can be quickly mixed and stirred in the polyurethane production stirring tank.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane raw material addition technology, and more specifically, to a polyurethane raw material addition device with weighing function. Background Technology

[0002] Polyurethane is a high molecular material with excellent mechanical properties formed by polycondensation reaction of polyols and polyisocyanates. It is extremely ductile. During the production of polyurethane, different types of raw materials need to be added. In order to facilitate the quantitative addition of polyurethane raw materials, a polyurethane raw material adding device with weighing function is required. For example, Chinese patent CN 216935559 U discloses a raw material adding device with weighing and dispensing capabilities.

[0003] Existing polyurethane raw material addition devices with weighing functions typically discharge directly through the outlet port. As a result, the raw materials accumulate in the mixing tank of polyurethane production, which hinders the tank from quickly mixing the raw materials and reduces the performance of the device. Therefore, we propose a polyurethane raw material addition device with weighing function. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a polyurethane raw material adding device with weighing function, so as to solve the technical problem that the current polyurethane raw material adding device with weighing function is not convenient to uniformly discharge the raw material into the polyurethane production mixing tank.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a polyurethane raw material adding device with weighing function, including a weighing frame, a hopper arranged on the weighing frame, a discharge structure arranged at the bottom of the hopper, a triangular support arranged on one side of the weighing frame, a transmission pipe arranged at the end of the triangular support facing away from the weighing frame, a material tray arranged at the bottom of the transmission pipe, a number of sets of guide covers arranged at equal intervals on the material tray, and a driving structure arranged at the top of the triangular support facing the end of the transmission pipe;

[0006] The material tray is truncated cone-shaped, and the top area of ​​the material tray is smaller than its bottom area. The material guide cover is arranged on the inclined surface of the material tray and is arc-shaped.

[0007] This invention, through its designed triangular support, conductive pipeline, driving structure, and material tray, allows the raw material to fall into the conductive pipeline when the discharge structure pulls it out from the outlet pipe. The material then exits through the outlet of the conductive pipeline and falls into the guide shroud of the material tray. During this process, the driving structure rotates the second conductive pipe and the material tray, causing the raw material to exit from the guide shroud. The raw material is discharged in a centrifugal diffusion manner, ensuring its even distribution into the polyurethane production mixing tank. This facilitates rapid mixing and agitation of the raw material within the polyurethane production mixing tank. The material... The disc is shaped like a frustum, with its top surface area smaller than its bottom surface area. Therefore, the raw material descends along the inclined surface of the disc, giving it downward potential energy. As the disc diffuses and discharges the raw material, it does so in a spiral downward diffusion pattern. This ensures more even distribution of the raw material into the polyurethane production mixing tank and avoids horizontal diffusion that could cause spillage inside and outside the tank. Furthermore, the guide hood is arc-shaped, allowing the raw material to flow more smoothly from the guide hood as the disc rotates, further enhancing the disc's diffusion and discharge efficiency.

[0008] Preferably, a weighing sensor is arranged at the top four corners of the weighing rack, and a connecting seat is arranged on the top of the weighing sensor, the connecting seat being connected to the hopper.

[0009] Preferably, the discharge structure includes a U-shaped shell, which is arranged at the bottom of the hopper. A circular tube is arranged on the side of the U-shaped shell facing the transmission pipeline, and the circular tube is connected to the U-shaped shell. A conveying rod is rotatably arranged inside the U-shaped shell and extends into the circular tube. Spiral conveying blades are arranged on the surface of the conveying rod. A first motor is arranged on the side of the discharge structure facing away from the circular tube, and the rotating shaft of the output end of the first motor is connected to the conveying rod. A discharge end pipe is arranged at the bottom of the circular tube facing away from the U-shaped shell.

[0010] Preferably, the transmission pipeline includes a first transmission pipe connected to a triangular bracket, a second transmission pipe rotatably arranged on the first transmission pipe, and a plurality of discharge ports are equidistantly opened around the bottom of the second transmission pipe, and the discharge ports are connected to the guide cover.

[0011] Preferably, the top of the first conductive pipe is provided with a funnel end, and the funnel end is connected to the discharge end pipe, but the funnel end and the discharge end pipe do not contact each other.

[0012] Preferably, the drive structure includes a second motor, a first gear disk, and a second gear disk. The second motor is arranged on a triangular bracket, the first gear disk is arranged on the rotating shaft at the output end of the second motor, and the second gear disk is arranged on a second transmission tube. The second gear disk meshes with the first gear disk.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through its designed triangular support, transmission pipeline, drive structure, and material tray, ensures that when the discharge structure discharges raw materials from the outlet pipe, the raw materials fall into the transmission pipeline, then through the outlet of the transmission pipeline, and finally into the guide cover of the material tray. During this process, the drive structure drives the second transmission pipe and the material tray to rotate, and then the raw materials are discharged from the guide cover. At this time, the raw materials are discharged in a centrifugal diffusion manner, which allows the raw materials to be evenly distributed into the polyurethane production mixing tank. This facilitates the rapid mixing and stirring of the raw materials in the polyurethane production mixing tank, solving the technical problem that current polyurethane raw material adding devices with weighing functions are not convenient for evenly discharging raw materials into the polyurethane production mixing tank. Therefore, this utility model has the advantage of raw material diffusion and discharge.

[0015] 2. The material tray of this utility model is truncated cone-shaped, and its top surface area is smaller than its bottom surface area. Therefore, the raw material will descend along the inclined surface of the material tray, giving it downward potential energy. Thus, when the material tray diffuses and discharges the raw material, it will be discharged in a spiral downward diffusion form. This not only makes the raw material more evenly discharged into the polyurethane production mixing tank, but also avoids the situation where the raw material is easily spilled inside and outside the polyurethane production mixing tank due to horizontal diffusion and discharge. Furthermore, the guide cover is arc-shaped, so when the material tray rotates, the raw material can be discharged more smoothly from the guide cover, further improving the material tray's diffusion and discharge effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of the weighing rack structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the material discharge structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the conductive pipeline structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the material tray structure of this utility model.

[0022] Explanation of the labels in the diagram:

[0023] 1. Weighing rack; 101. Weighing sensor; 102. Connecting seat; 2. Hopper; 3. Discharge structure; 301. U-shaped shell; 302. Round tube; 303. Conveying rod; 304. Spiral conveyor blade; 305. First motor; 306. Discharge end pipe; 4. Triangular bracket; 5. Conducting pipeline; 501. First conducting pipe; 502. Second conducting pipe; 503. Discharge port; 504. Funnel end; 6. Material tray; 601. Guide cover; 7. Drive structure; 701. Second motor; 702. First gear disk; 703. Second gear disk. Detailed Implementation

[0024] like Figures 1 to 6 As shown, this utility model relates to a polyurethane raw material adding device with weighing function, including a weighing frame 1, a hopper 2 arranged on the weighing frame 1, a discharge structure 3 arranged at the bottom of the hopper 2, a triangular support 4 arranged on one side of the weighing frame 1, a transmission pipe 5 arranged at the end of the triangular support 4 facing away from the weighing frame 1, a material tray 6 arranged at the bottom of the transmission pipe 5, and several sets of guide covers 601 arranged at equal intervals on the material tray 6. A driving structure 7 is arranged at the top of the triangular support 4 facing the transmission pipe 5. When quantitatively adding polyurethane raw material, the raw material inside the hopper 2 can be discharged through the discharge structure 3. As the raw material is discharged, the weighing frame 1 will weigh the hopper 2, the raw material inside the hopper 2, and the discharge structure 3 as a whole. The process involves testing. When the total weight of the hopper 2, the raw materials inside the hopper 2, and the discharge structure 3 reaches the set value, the discharge is stopped, thus enabling the quantitative addition of polyurethane raw materials. When the discharge structure 3 discharges the raw materials from the discharge end pipe 306, the raw materials fall into the transmission pipe 5, and then are discharged through the discharge port 503 of the transmission pipe 5, falling into the guide cover 601 of the material tray 6. During this process, the drive structure 7 drives the second transmission pipe 502 of the transmission pipe 5 and the material tray 6 to rotate, and then the raw materials are discharged from the guide cover 601. At this time, the raw materials are discharged in the form of centrifugal diffusion, which allows the raw materials to be evenly sprinkled into the polyurethane production mixing tank, which is beneficial for the rapid mixing of the raw materials in the polyurethane production mixing tank.

[0025] Specifically, weighing sensors 101 are arranged at the four corners of the top of the weighing rack 1. A connecting seat 102 is arranged on the top of the weighing sensor 101. The connecting seat 102 is connected to the hopper 2. The weighing rack 1 is connected to the hopper 2 through the connecting seat 102, thereby supporting the hopper 2. As the raw material is discharged, the weighing sensor 101 can weigh and detect the remaining raw material in the hopper 2 at any time, thereby achieving quantitative discharge of the raw material.

[0026] Furthermore, the discharge structure 3 includes a U-shaped shell 301, which is located at the bottom of the hopper 2. A circular tube 302 is arranged on the side of the U-shaped shell 301 facing the transmission pipe 5, and the circular tube 302 is connected to the U-shaped shell 301. A conveying rod 303 is rotatably arranged inside the U-shaped shell 301 and extends into the circular tube 302. A spiral conveying blade 304 is arranged on the surface of the conveying rod 303. A first motor 305 is arranged on the side of the discharge structure 3 facing away from the circular tube 302, and the rotating shaft at the output end of the first motor 305 is connected to the conveying rod 303. A discharge end pipe 306 is arranged at the bottom end of the circular tube 302 facing away from the U-shaped shell 301. The first motor 305 can drive the conveying rod 303 to rotate, and then the spiral conveying blade 304 on the conveying rod 303 conveys the raw material to the discharge end pipe 306 until it is discharged from the discharge end pipe 306.

[0027] Furthermore, the transmission pipeline 5 includes a first transmission pipeline 501, which is connected to the triangular bracket 4. A second transmission pipeline 502 is rotatably arranged on the first transmission pipeline 501. The material tray 6 is arranged at the bottom of the second transmission pipeline 502. Several sets of discharge ports 503 are equidistantly opened around the bottom of the second transmission pipeline 502, and the discharge ports 503 are connected to the guide cover 601. A funnel end 504 is arranged at the top of the first transmission pipeline 501, and the funnel end 504 is connected to the discharge end pipe 306. The funnel end 504 and the discharge end pipe 306 do not contact each other. The raw material discharged from the discharge end pipe 306 enters the first transmission pipeline 501 through the funnel end 504. Then the raw material falls along the first transmission pipeline 501 and the second transmission pipeline 502, and finally exits from the discharge port 503 and enters the guide cover 601.

[0028] It is worth mentioning that the drive structure 7 includes a second motor 701, a first gear disk 702, and a second gear disk 703. The second motor 701 is arranged on the triangular bracket 4, the first gear disk 702 is arranged on the rotating shaft at the output end of the second motor 701, and the second gear disk 703 is arranged on the second transmission tube 502. The second gear disk 703 meshes with the first gear disk 702. The second motor 701 drives the first gear disk 702 to rotate, and then the first gear disk 702 drives the second transmission tube 502 to rotate through the second gear disk 703. Then, the second transmission tube 502 synchronously drives the material tray 6 at its bottom to rotate.

[0029] In this embodiment of the invention, the material tray 6 is frustum-shaped, and the top area of ​​the material tray 6 is smaller than its bottom area. The guide cover 601 is arranged on the inclined surface of the material tray 6. The guide cover 601 is arc-shaped. The raw material will descend along the inclined surface of the material tray 6 inside the guide cover 601, giving the raw material downward potential energy. Therefore, when the material tray 6 diffuses and discharges the raw material, the raw material will be discharged in a spiral downward diffusion form. This can make the raw material discharged into the polyurethane production mixing tank more evenly, and at the same time, it can avoid the situation where the raw material is discharged horizontally, which is easy to cause the raw material to spill inside and outside the polyurethane production mixing tank. When the material tray 6 rotates, the raw material can be discharged more smoothly from the arc-shaped guide cover 601, further improving the effect of the material tray 6 on the diffusion and discharge of raw materials.

[0030] Working principle: This embodiment provides a polyurethane raw material adding device with weighing function. First, when adding polyurethane raw material in a quantitative manner, the raw material inside the hopper 2 can be discharged through the discharge structure 3. As the raw material is discharged, the weighing rack 1 will detect the overall weight of the hopper 2, the raw material inside the hopper 2 and the discharge structure 3. When the overall weight of the hopper 2, the raw material inside the hopper 2 and the discharge structure 3 reaches the set value, the discharge will stop, thus realizing the quantitative addition of polyurethane raw material.

[0031] Secondly, when the discharge structure 3 discharges the raw material from the discharge end pipe 306, the raw material will fall into the transmission pipe 5, and then be discharged through the discharge port 503 of the transmission pipe 5, and fall into the guide cover 601 of the material tray 6. During this process, the drive structure 7 drives the second transmission pipe 502 of the transmission pipe 5 and the material tray 6 to rotate, and then the raw material is discharged from the guide cover 601. At this time, the raw material is discharged in the form of centrifugal diffusion, so that the raw material can be evenly sprinkled into the polyurethane production mixing tank, which is conducive to the rapid mixing of the raw material in the polyurethane production mixing tank.

[0032] Finally, the raw material will descend along the inclined surface of the material tray 6 within the guide cover 601, giving it downward potential energy. Therefore, when the material tray 6 diffuses and discharges the raw material, it will be discharged in a spiral downward diffusion pattern. This allows the raw material to be discharged more evenly into the polyurethane production mixing tank, and also avoids the situation where the raw material is discharged horizontally, which could easily cause it to spill inside and outside the polyurethane production mixing tank. When the material tray 6 rotates, the raw material can be discharged more smoothly from the arc-shaped guide cover 601, further improving the effect of the material tray 6 in dispersing and discharging the raw material.

[0033] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A polyurethane raw material adding device with weighing function, characterized in that, The weighing rack (1) includes a hopper (2) on the weighing rack (1), a discharge structure (3) at the bottom of the hopper (2), a triangular support (4) on one side of the weighing rack (1), a transmission pipe (5) at the end of the triangular support (4) facing away from the weighing rack (1), a material tray (6) at the bottom of the transmission pipe (5), a number of guide covers (601) at equal intervals on the material tray (6), and a driving structure (7) at the top of the triangular support (4) facing the end of the transmission pipe (5). The material tray (6) is frustum-shaped, and the top area of ​​the material tray (6) is smaller than its bottom area. The guide cover (601) is arranged on the inclined surface of the material tray (6) and the guide cover (601) is arc-shaped.

2. The polyurethane raw material adding device with weighing function according to claim 1, characterized in that, Weighing sensors (101) are arranged at the four corners of the top of the weighing rack (1), and a connecting seat (102) is arranged on the top of the weighing sensor (101). The connecting seat (102) is connected to the hopper (2).

3. The polyurethane raw material adding device with weighing function according to claim 1, characterized in that, The discharge structure (3) includes a U-shaped shell (301), which is arranged at the bottom of the hopper (2). A circular tube (302) is arranged on the side of the U-shaped shell (301) facing the transmission pipeline (5). The circular tube (302) is connected to the U-shaped shell (301). A conveying rod (303) is rotatably arranged inside the U-shaped shell (301) and extends through the circular tube (302). A spiral conveying blade (304) is arranged on the surface of the conveying rod (303). A first motor (305) is arranged on the side of the discharge structure (3) facing away from the circular tube (302), and the rotating shaft of the output end of the first motor (305) is connected to the conveying rod (303). A discharge end pipe (306) is arranged at the bottom of the circular tube (302) facing away from the U-shaped shell (301).

4. A polyurethane raw material adding device with weighing function according to claim 3, characterized in that, The transmission pipeline (5) includes a first transmission pipeline (501), which is connected to the triangular bracket (4). A second transmission pipeline (502) is rotatably arranged on the first transmission pipeline (501). Several sets of discharge ports (503) are equidistantly opened around the bottom of the second transmission pipeline (502), and the discharge ports (503) are connected to the guide cover (601).

5. A polyurethane raw material adding device with weighing function according to claim 4, characterized in that, The top of the first conductive pipe (501) is provided with a funnel end (504), and the funnel end (504) is connected to the discharge end pipe (306), but the funnel end (504) and the discharge end pipe (306) do not contact each other.

6. A polyurethane raw material adding device with weighing function according to claim 4, characterized in that, The drive structure (7) includes a second motor (701), a first gear disk (702) and a second gear disk (703). The second motor (701) is arranged on a triangular bracket (4). The first gear disk (702) is arranged on the rotating shaft at the output end of the second motor (701). The second gear disk (703) is arranged on a second transmission tube (502). The second gear disk (703) meshes with the first gear disk (702).

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