Constant temperature stirring device for polyurethane raw material mixing tank

Abstract

The utility model discloses a constant temperature stirring device of polyurethane raw material mixing tank relates to polyurethane insulation board production technical field, including stirring bin, the upper end fixed mounting of stirring bin has the mounting bracket, the center fixed mounting of mounting bracket has drive motor, the output fixed mounting of drive motor has the drive shaft, and the outside fixed mounting of drive shaft has stirring fan blade and inner wall scraping subassembly respectively. In the utility model, through dismantling nut, the inner wall scraper of deformation damage is taken down, and the brand -new inner wall scraper is replaced, so that the one end of inner wall scraper is pasted in the inner wall of stirring bin, after long time use, the inner wall scraping subassembly in this constant temperature stirring device can keep the close state of pasting, ensures that there is no residual wall after the raw material stirring is completed.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane insulation board production technology, and in particular to a constant temperature stirring device for a polyurethane raw material mixing tank. Background Technology

[0002] The production process of polyurethane insulation boards includes raw material preparation, mixing, foaming and molding, and post-processing. When mixing raw materials, polyacetic anhydride, polypolyol, and polylactide are added to a mixing tank in a specific ratio, while catalysts, foaming agents, and stabilizers are added simultaneously with stirring. The mixing time and speed need to be controlled according to actual conditions to ensure uniform mixing and full activation of the catalyst.

[0003] For example, Chinese Patent Publication No. CN220331657U discloses a constant temperature mixing and stirring device for resin raw materials, which includes a base plate and a side plate. The side plate is set on the base plate, and a flip motor is provided at the upper end of the side of the side plate. The flip motor is fixedly connected to a fixing collar. The fixing collar and the flip motor are symmetrically arranged on both sides of the side plate. A heat preservation component is provided inside the fixing collar, and a mixing chamber is provided inside the heat preservation component. A stirring component is provided inside the mixing chamber.

[0004] When performing constant-temperature mixing of raw materials, to avoid material adhering to the walls, the edges of the agitator blades are usually designed to maintain a tight fit with the inner wall of the mixing tank, thus ensuring that no residue adheres after mixing. However, due to the continuous friction and wear between the blades and the inner wall of the tank during mixing, the geometric dimensions of the blade edges will deform after prolonged use, gradually losing their tight fit with the inner wall of the mixing tank. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art that the impeller blades continuously rub against the inner wall of the tank, and after long-term use, the geometric dimensions of the impeller blade edges will deform, gradually losing their tight fit with the inner wall of the mixing tank. Therefore, a constant temperature stirring device for a polyurethane raw material mixing tank is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a constant temperature stirring device for a polyurethane raw material mixing tank, comprising a stirring chamber, an mounting frame fixedly installed at the upper end of the stirring chamber, a drive motor fixedly installed at the center of the mounting frame, a drive shaft fixedly installed at the output end of the drive motor, stirring blades and an inner wall scraping assembly fixedly installed on the outer side of the drive shaft, the inner wall scraping assembly comprising a mounting plate, mounting rods, adapters and an inner wall scraper, one end of several mounting rods fixedly installed on the outer side of the mounting plate, the other end of several mounting rods fixedly connected to several adapters, the inner wall scraper fixedly installed on one side of the adapter, and a constant temperature component fixedly installed on the outer side of the stirring chamber.

[0007] Preferably, a positioning rod is fixedly installed on one side of the adapter, and positioning holes are symmetrically opened inside the inner wall scraper. One end of the positioning rod moves through the inside of the positioning hole, and a nut is threaded to one end of the positioning rod.

[0008] Preferably, an adapter ring is fixedly connected to one side of the positioning hole, and the positioning rod and the nut at one end of it are located inside the adapter ring.

[0009] Preferably, the outer thread of the adapter ring is connected to a sealing round cap.

[0010] Preferably, a rubber ring is fixedly bonded to one side of the sealing round cap.

[0011] Preferably, the temperature control component includes an installation chamber, and several heating resistance rings are fixedly installed inside the installation chamber.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, by removing the nut, the deformed and damaged inner wall scraper is removed and replaced with a brand new inner wall scraper, so that one end of the inner wall scraper is attached to the inner wall of the mixing chamber. After long-term use, the inner wall scraping component in the constant temperature mixing device can maintain a tight fit, ensuring that there is no residue on the wall after the raw materials are mixed.

[0014] 2. In this utility model, the sealing round cover is connected to the outside of the adapter ring by a thread, which isolates the raw material from entering the inside of the adapter ring, prevents the raw material from adhering to the outside of the positioning rod and nut, avoids the formation of "mechanical wedge" after the material solidifies, and improves the convenience of disassembly and maintenance. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a constant temperature stirring device for a polyurethane raw material mixing tank is provided for this utility model.

[0016] Figure 2 This utility model provides a schematic diagram of the connection relationship between the drive shaft, the stirring blades, and the inner wall scraping assembly in a constant temperature stirring device for a polyurethane raw material mixing tank.

[0017] Figure 3 This utility model provides a schematic diagram of the connection relationship between the adapter and the inner wall scraper in a constant temperature stirring device for a polyurethane raw material mixing tank.

[0018] Figure 4 This utility model presents a three-dimensional structural diagram of the thermostatic component in a thermostatic stirring device for a polyurethane raw material mixing tank.

[0019] Legend: 1. Mixing chamber; 11. Mounting frame; 2. Drive motor; 3. Drive shaft; 31. Mixing blade; 32. Inner wall scraping assembly; 321. Mounting plate; 322. Mounting rod; 323. Adapter; 324. Inner wall scraper; 325. Positioning rod; 326. Positioning hole; 327. Adapter ring; 328. Sealing round cover; 4. Thermostatic assembly; 41. Mounting chamber; 42. Heating resistance ring. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a constant temperature stirring device for a polyurethane raw material mixing tank, including a stirring chamber 1. A mounting frame 11 is fixedly installed on the upper end of the stirring chamber 1. A drive motor 2 is fixedly installed at the center of the mounting frame 11. A drive shaft 3 is fixedly installed at the output end of the drive motor 2. A stirring fan blade 31 and an inner wall scraping assembly 32 are fixedly installed on the outer side of the drive shaft 3. The inner wall scraping assembly 32 includes a mounting plate 321, mounting rods 322, an adapter 323, and an inner wall scraper 324. One end of several mounting rods 322 is fixedly installed on the outer side of the mounting plate 321. The other end of several mounting rods 322 is fixedly connected to several adapters 323. The inner wall scraper 324 is fixedly installed on one side of the adapter 323. The outside of the mixing chamber 1 is fixedly installed with a constant temperature component 4. The side of the adapter 323 is fixedly installed with a positioning rod 325. The inner wall scraper 324 has symmetrically opened positioning holes 326. One end of the positioning rod 325 moves through the inside of the positioning hole 326. One end of the positioning rod 325 is threaded to a nut. The constant temperature component 4 includes a mounting chamber 41. Several heating resistance rings 42 are fixedly installed inside the mounting chamber 41.

[0023] The specific settings and functions of this embodiment are described below. The raw materials to be mixed are fed into the mixing chamber 1. The drive motor 2 is started, and the drive motor 2 drives the drive shaft 3 to rotate. The drive shaft 3 drives the stirring fan blades 31 and the inner wall scraping component 32 to rotate, so as to fully mix the raw materials inside the mixing chamber 1. At the same time, the heating resistance ring 42 in the constant temperature component 4 works to keep the stirred raw materials at a constant temperature. When performing regular maintenance on the constant temperature stirring device, the nut is removed, the deformed and damaged inner wall scraper 324 is removed, and a brand new inner wall scraper 324 is replaced. This ensures that one end of the inner wall scraper 324 is attached to the inner wall of the mixing chamber 1. After long-term use, the inner wall scraping component 32 in the constant temperature stirring device can maintain a tight fit, ensuring that there is no residue left on the wall after the raw materials are mixed.

[0024] Example 2: Figure 1 - Figure 3 As shown, the constant temperature stirring device for the polyurethane raw material mixing tank of this utility model includes a stirring chamber 1. A mounting frame 11 is fixedly installed on the upper end of the stirring chamber 1. A drive motor 2 is fixedly installed at the center of the mounting frame 11. A drive shaft 3 is fixedly installed at the output end of the drive motor 2. A stirring fan blade 31 and an inner wall scraping assembly 32 are fixedly installed on the outer side of the drive shaft 3. The inner wall scraping assembly 32 includes a mounting plate 321, mounting rods 322, adapters 323, and an inner wall scraper 324. One end of several mounting rods 322 is fixedly installed on the outer side of the mounting plate 321, and the other end of several mounting rods 322 is fixedly connected to several adapters 323. Next, the inner wall scraper 324 is fixedly installed on one side of the adapter 323, and the constant temperature component 4 is fixedly installed on the outside of the mixing chamber 1. The positioning rod 325 is fixedly installed on one side of the adapter 323. The inner wall scraper 324 has symmetrically opened positioning holes 326 inside. One end of the positioning rod 325 is movably inserted through the inside of the positioning hole 326. One end of the positioning rod 325 is threadedly connected to a nut. The side of the positioning hole 326 is fixedly connected to an adapter ring 327. The positioning rod 325 and the nut at one end are set inside the adapter ring 327. The outside of the adapter ring 327 is threadedly connected to a sealing round cover 328. A rubber ring is fixedly glued to one side of the sealing round cover 328.

[0025] The overall effect of this embodiment is that when the drive shaft 3 drives the stirring fan blade 31 and the inner wall scraping assembly 32 to rotate, some raw materials will come into contact with and adhere to one side of the inner wall scraper 324. The sealing round cover 328 is connected to the outside of the adapter ring 327 by a thread, which prevents the raw materials from entering the interior of the adapter ring 327, prevents the raw materials from adhering to the outside of the positioning rod 325 and the nut, avoids the formation of "mechanical wedging" after the material solidifies, and improves the convenience of disassembly and maintenance.

[0026] The operating method and working principle of this device are as follows: The raw materials to be mixed are fed into the mixing chamber 1, the drive motor 2 is started, the drive motor 2 drives the drive shaft 3 to rotate, the drive shaft 3 drives the stirring fan blade 31 and the inner wall scraping component 32 to rotate, so as to fully stir and mix the raw materials inside the mixing chamber 1. At the same time, the heating resistance ring 42 in the constant temperature component 4 works to keep the stirred raw materials at a constant temperature. When performing regular maintenance on the constant temperature stirring device, the nut is removed, the deformed and damaged inner wall scraper 324 is removed, and a brand new inner wall scraper 324 is replaced, so that one end of the inner wall scraper 324 is attached to the inner wall of the mixing chamber 1. After long-term use, the inner wall scraping component 32 in the constant temperature stirring device can maintain a tight fit.

[0027] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A constant-temperature stirring device for a polyurethane raw material mixing tank, comprising a stirring chamber (1), characterized in that: A mounting frame (11) is fixedly installed at the upper end of the mixing chamber (1). A drive motor (2) is fixedly installed at the center of the mounting frame (11). A drive shaft (3) is fixedly installed at the output end of the drive motor (2). A mixing fan blade (31) and an inner wall scraping assembly (32) are fixedly installed on the outer side of the drive shaft (3). The inner wall scraping assembly (32) includes a mounting plate (321), mounting rods (322), an adapter (323), and an inner wall scraper (324). One end of several mounting rods (322) is fixedly installed on the mounting plate (321). On the outside, the other end of several mounting rods (322) is fixedly connected to several adapters (323). The inner wall scraper (324) is fixedly installed on one side of the adapter (323). A constant temperature component (4) is fixedly installed on the outside of the mixing chamber (1). A positioning rod (325) is fixedly installed on one side of the adapter (323). A positioning hole (326) is symmetrically opened inside the inner wall scraper (324). One end of the positioning rod (325) moves through the inside of the positioning hole (326). One end of the positioning rod (325) is threaded to a nut.

2. The constant temperature stirring device for a polyurethane raw material mixing tank according to claim 1, characterized in that: An adapter ring (327) is fixedly connected to one side of the positioning hole (326), and the positioning rod (325) and the nut at one end of it are located inside the adapter ring (327).

3. The constant temperature stirring device for a polyurethane raw material mixing tank according to claim 2, characterized in that: The outer thread of the adapter ring (327) is connected to a sealing cap (328).

4. The constant temperature stirring device for a polyurethane raw material mixing tank according to claim 3, characterized in that: A rubber ring is fixedly bonded to one side of the sealing round cover (328).

5. The constant temperature stirring device for a polyurethane raw material mixing tank according to claim 1, characterized in that: The thermostatic component (4) includes an installation chamber (41), and several heating resistance rings (42) are fixedly installed inside the installation chamber (41).

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