Metering tank for producing two-component polyurethane adhesive

Abstract

The utility model provides a measuring tank for producing a bi-component polyurethane adhesive, which comprises a base and a measuring tank, a mixing tank is arranged on the base, the upper part of the mixing tank is fixedly connected with a support rod, the upper end of the support rod is fixedly connected with the measuring tank, and a liquid level meter and a control panel are arranged outside the measuring tank. According to the metering tank for producing the two-component polyurethane adhesive, two raw materials are independently stored on the two sides of the first partition plate and enter the mixing pipe in cooperation with the feeding pipe, a premixing channel is provided for the two raw materials, and the feeding speed of the two raw materials can be flexibly adjusted when the raw materials pass through the adjusting valve; a plurality of groups of first spiral sheets and second spiral sheets in the mixing pipe are in a vertically staggered state, so that flowing raw materials can be divided, steered and recombined for multiple times, sufficient preliminary mixing is realized, and the working pressure of the driving part and the stirring assembly is reduced.

Description

Technical Field

[0001] This utility model relates to the field of metering device technology, and in particular to a metering tank for the production of two-component polyurethane adhesives. Background Technology

[0002] Two-component polyurethane adhesives typically consist of an isocyanate component containing NCO (curing agent) and a hydroxyl component containing hydroxyl groups (main agent).

[0003] The existing metering tank is used to store the two components separately. When in use, the two are released at a certain ratio and rate and then mixed.

[0004] However, existing metering tanks lack an effective premixing stage, and the raw material mixing composition relies on the stirring components for deep mixing. Since the two components have high viscosity during mixing, this not only increases the load on the drive unit and stirring components, but may also lead to unstable product quality due to insufficient mixing.

[0005] Therefore, it is necessary to provide a metering tank for the production of two-component polyurethane adhesives to solve the above-mentioned technical problems. Utility Model Content

[0006] This invention provides a metering tank for the production of two-component polyurethane adhesives, which solves the problem that existing metering tanks lack an effective premixing stage, thus increasing the load on the drive unit and stirring assembly, and may also lead to unstable quality due to insufficient mixing.

[0007] To solve the above-mentioned technical problems, this utility model provides a metering tank for the production of two-component polyurethane adhesives, comprising: a base and a metering tank, a mixing tank disposed on the base, a support rod fixedly connected to the upper part of the mixing tank, the upper end of the support rod being fixedly connected to the metering tank, a level gauge and a control panel disposed outside the metering tank, a premixing component disposed at the lower part of the metering tank, the lower end of the premixing component being connected to the upper end of the mixing tank, a drive unit disposed at the upper part of the mixing tank, and a stirring component located inside the mixing tank disposed at the output end of the drive unit.

[0008] Preferably, the metering tank includes a metering tank body and a first cover plate. A first partition plate is fixedly connected to the middle position of the metering tank body. A first feed pipe and a second feed pipe are respectively provided on the upper two sides of the first cover plate. A first control valve is provided on both the first feed pipe and the second feed pipe. A second partition plate is fixedly connected to the middle position of the first cover plate, and the second partition plate corresponds to the first partition plate.

[0009] Preferably, the mixing tank includes a mixing tank body and a second cover plate, the drive unit is disposed on the second cover plate, the bottom of the mixing tank body is provided with a discharge pipe, and a second control valve is disposed on the discharge pipe.

[0010] Preferably, the premixing component includes a mixing tube, a feed tube, a first spiral blade, and a second spiral blade. The mixing tube is fixedly connected to a second cover plate, and the feed tube is fixedly connected to both sides of the lower end of the metering tank body. An adjusting valve is provided on the feed tube. Multiple sets of the first and second spiral blades are provided inside the mixing tube, and the first and second spiral blades are perpendicularly staggered and fixedly connected.

[0011] Preferably, the driving unit includes a driving component, a first rotating shaft, and a second rotating shaft. The output end of the driving component is connected to the first rotating shaft. A first bevel gear is fixedly connected to the first rotating shaft. The second rotating shaft is rotatably connected to a second cover plate. A second bevel gear is fixedly connected to the second rotating shaft, and the second bevel gear meshes with the first bevel gear.

[0012] Preferably, the stirring assembly includes a fixing component, a main stirring fan, and a secondary stirring fan. The main stirring fan is symmetrically distributed on both sides of the second rotating shaft and connected to the second rotating shaft through two sets of fixing components. Multiple sets of equidistantly distributed baffles are fixedly connected to the main stirring fan. The secondary stirring fan is located below the second rotating shaft and connected to the second rotating shaft through a fixing component.

[0013] Preferably, a first scraper is provided on the side of the main stirring fan, the first scraper being close to the inner wall of the mixing tank body, and a second scraper is provided at the bottom of the auxiliary stirring fan, the second scraper being close to the bottom of the mixing tank body.

[0014] Compared with related technologies, the metering tank for producing two-component polyurethane adhesives provided by this utility model has the following beneficial effects:

[0015] This invention provides a metering tank for the production of two-component polyurethane adhesives. The two raw materials are stored independently on both sides of a first partition plate and enter the mixing tube through a feed pipe, providing a pre-mixing channel for the two raw materials. When the raw materials pass through the regulating valve, the feed speed of the two raw materials can be flexibly adjusted to avoid incorrect mixing ratios due to differences in flow rates, thus increasing accuracy. The multiple sets of first and second spiral blades inside the mixing tube are perpendicularly interlaced, which can perform multiple divisions, turns, and recombinations on the flowing raw materials to achieve thorough preliminary mixing and reduce the working pressure on the drive unit and stirring assembly. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of a metering tank for producing two-component polyurethane adhesives provided by this utility model. Figure 1 ;

[0017] Figure 2 A schematic diagram of a preferred embodiment of a metering tank for producing two-component polyurethane adhesives provided by this utility model. Figure 2 ;

[0018] Figure 3 This is a schematic diagram of the metering tank in this utility model. Figure 1 ;

[0019] Figure 4 This is a schematic diagram of the metering tank in this utility model. Figure 2 ;

[0020] Figure 5 This is a schematic diagram of the premixing component in this utility model;

[0021] Figure 6 This is a schematic diagram showing the disassembled structure of the drive unit and the stirring assembly in this utility model.

[0022] The diagram is labeled as follows: 1. Base; 2. Metering tank; 21. Metering tank body; 22. First cover plate; 23. First partition plate; 24. First feed pipe; 25. Second feed pipe; 26. First control valve; 27. Second partition plate; 3. Mixing tank; 31. Mixing tank body; 32. Second cover plate; 33. Discharge pipe; 34. Second control valve; 4. Support rod; 5. Level gauge; 6. Control panel; 7. Premixing assembly; 71. Mixing pipe; 72. Feed pipe; 73. Regulating valve; 74. First spiral blade; 75. Second spiral blade; 8. Drive unit; 81. Drive component; 82. First rotating shaft; 83. Second rotating shaft; 84. First bevel gear; 85. Second bevel gear; 9. Stirring assembly; 91. Fixing component; 92. Main stirring fan; 93. Baffle plate; 94. Auxiliary stirring fan; 95. First scraper; 96. Second scraper. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 ,in, Figure 1 A schematic diagram of a preferred embodiment of a metering tank for producing two-component polyurethane adhesives provided by this utility model. Figure 1 ;

[0025] Figure 2 A schematic diagram of a preferred embodiment of a metering tank for producing two-component polyurethane adhesives provided by this utility model. Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the metering tank in this utility model. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the metering tank in this utility model. Figure 2 ;

[0028] Figure 5 This is a schematic diagram of the premixing component in this utility model;

[0029] Figure 6 This is a schematic diagram showing the disassembled structure of the drive unit and the stirring assembly in this utility model.

[0030] A metering tank for producing a two-component polyurethane adhesive includes: a base 1 and a metering tank 2. A mixing tank 3 is disposed on the base 1. A support rod 4 is fixedly connected to the upper part of the mixing tank 3. The upper end of the support rod 4 is fixedly connected to the metering tank 2. A level gauge 5 and a control panel 6 are disposed on the outside of the metering tank 2. A premixing component 7 is disposed at the lower part of the metering tank 2. The lower end of the premixing component 7 is connected to the upper end of the mixing tank 3. A drive unit 8 is disposed at the upper part of the mixing tank 3. A stirring component 9 located inside the mixing tank 3 is disposed at the output end of the drive unit 8.

[0031] The two raw materials enter the metering tank 2 and are stored independently. At the same time, the feed rate is controlled to adjust the final ratio. Then, the raw materials on both sides enter the premixing component 7 for preliminary mixing to reduce the difficulty of subsequent mixing. The premixed raw materials enter the mixing tank 3. The drive unit 8 drives the stirring component 9 to work and perform the final mixing of the two raw materials. After that, the adhesive is discharged from the bottom of the mixing tank 3.

[0032] The metering tank 2 includes a metering tank body 21 and a first cover plate 22. A first partition plate 23 is fixedly connected to the middle position of the metering tank body 21. A first feed pipe 24 and a second feed pipe 25 are respectively provided on the upper two sides of the first cover plate 22. A first control valve 26 is provided on both the first feed pipe 24 and the second feed pipe 25. A second partition plate 27 is fixedly connected to the middle position of the first cover plate 22. The second partition plate 27 corresponds to the first partition plate 23.

[0033] The metering tank body 21 is divided into two independent spaces by the first partition plate 23, which respectively store two components of raw materials. The first feed pipe 24 and the second feed pipe 25 correspond to the addition of the two raw materials. The first control valve 26 can accurately control the feed amount and facilitate the adjustment of the raw material ratio. The second partition plate 27 corresponds to the first partition plate 23, which further ensures the separation of the two raw materials in the metering tank 2 and reduces mutual interference. At the same time, a temperature detection device can be set on the first cover plate 22 to ensure that the flow state of the raw materials is maintained at a suitable temperature when they are released.

[0034] The mixing tank 3 includes a mixing tank body 31 and a second cover plate 32. The driving unit 8 is disposed on the second cover plate 32. A discharge pipe 33 is disposed at the bottom of the mixing tank body 31, and a second control valve 34 is disposed on the discharge pipe 33.

[0035] The mixing tank body 31 is used for stirring and mixing raw materials. The second cover plate 32 closes the mixing tank body 31 and the drive unit 8, which facilitates the power transmission to the stirring assembly 9. The discharge pipe 33 is used to discharge the mixed adhesive. The second control valve 34 can control the timing and speed of discharge.

[0036] The premixing component 7 includes a mixing pipe 71, a feed pipe 72, a first spiral blade 74, and a second spiral blade 75. The mixing pipe 71 is fixedly connected to the second cover plate 32, and the feed pipe 72 is fixedly connected to both sides of the lower end of the metering tank body 21. An adjusting valve 73 is provided on the feed pipe 72. Multiple sets of the first spiral blade 74 and the second spiral blade 75 are provided inside the mixing pipe 71. The first spiral blade 74 and the second spiral blade 75 are perpendicularly staggered and fixedly connected.

[0037] The mixing tube 71 provides a channel for premixing raw materials. The feed tube 72 introduces the two raw materials in the metering tank 2 into the mixing tube 71. The regulating valve 73 can adjust the feeding speed of the two raw materials to prevent incorrect premixing ratio. Multiple sets of vertically intersecting first spiral blades 74 and second spiral blades 75 divide and stir the raw materials to achieve preliminary mixing and reduce the difficulty of subsequent raw material mixing.

[0038] The drive unit 8 includes a drive component 81, a first rotating shaft 82, and a second rotating shaft 83. The output end of the drive component 81 is connected to the first rotating shaft 82. A first bevel gear 84 is fixedly connected to the first rotating shaft 82. The second rotating shaft 83 is rotatably connected to the second cover plate 32. A second bevel gear 85 is fixedly connected to the second rotating shaft 83, and the second bevel gear 85 meshes with the first bevel gear 84.

[0039] The drive unit 81 provides power, which drives the first bevel gear 84 to rotate through the first rotating shaft 82. The first bevel gear 84 meshes with the second bevel gear 85, transmitting power to the second rotating shaft 83, thereby driving the stirring assembly 9 to work.

[0040] The stirring assembly 9 includes a fixing member 91, a main stirring fan 92 and a secondary stirring fan 94. The main stirring fan 92 is symmetrically distributed on both sides of the second rotating shaft 83 and is connected to the second rotating shaft 83 through two sets of fixing members 91. Multiple sets of equally spaced baffles 93 are fixedly connected to the main stirring fan 92. The secondary stirring fan 94 is located below the second rotating shaft 83 and is connected to the second rotating shaft 83 through the fixing member 91.

[0041] The fixing component 91 fixes the main stirring fan 92 and the auxiliary stirring fan 94 on the second rotating shaft 83. As the second rotating shaft 83 rotates, the main stirring fan 92 stirs the raw materials located in the upper and middle parts of the mixing tank 3. The baffle 93 increases fluid disturbance and enhances the stirring effect. The auxiliary stirring fan 94 stirs the raw materials at the bottom of the mixing tank 3 to prevent the raw materials at the bottom from settling and improve the mixing uniformity.

[0042] The main stirring fan 92 has a first scraper 95 on its side, which is close to the inner wall of the mixing tank body 31. The auxiliary stirring fan 94 has a second scraper 96 at its bottom, which is close to the bottom of the mixing tank body 31.

[0043] The first scraper 95 is close to the inner wall of the mixing tank body 31 and can scrape off the raw materials adhering to the inner wall. The second scraper 96 is close to the bottom of the mixing tank body 31 and can scrape off the raw materials remaining at the bottom, avoiding raw material residue and waste, ensuring the mixing effect and reducing the difficulty of cleaning.

[0044] The working principle of the metering tank for producing two-component polyurethane adhesives provided by this utility model is as follows:

[0045] The two raw materials enter the metering tank 2 and are stored independently. At the same time, the feed rate is controlled to adjust the final ratio. Then, the raw materials on both sides enter the premixing component 7 for preliminary mixing to reduce the difficulty of subsequent mixing. The premixed raw materials enter the mixing tank 3. The drive unit 8 drives the stirring component 9 to work and perform the final mixing of the two raw materials. After that, the adhesive is discharged from the bottom of the mixing tank 3.

[0046] Compared with related technologies, the metering tank for producing two-component polyurethane adhesives provided by this utility model has the following beneficial effects:

[0047] The two raw materials are stored independently on both sides of the first partition plate 23 and enter the mixing tube 71 through the feed pipe 72, providing a pre-mixing channel for the two raw materials. When the raw materials pass through the regulating valve 73, the feed speed of the two raw materials can be flexibly adjusted to avoid incorrect mixing ratio due to flow rate differences, thus increasing accuracy. The multiple sets of first spiral blades 74 and second spiral blades 75 inside the mixing tube 71 are in a vertically intersecting state, which can perform multiple divisions, turns and recombinations of the flowing raw materials to achieve thorough preliminary mixing and reduce the working pressure of the drive unit 8 and the stirring assembly 9.

[0048] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A metering tank for producing two-component polyurethane adhesives, characterized in that, include: The system includes a base and a metering tank. A mixing tank is mounted on the base. A support rod is fixedly connected to the upper part of the mixing tank, and the upper end of the support rod is fixedly connected to the metering tank. A level gauge and a control panel are mounted on the outside of the metering tank. A premixing component is mounted on the lower part of the metering tank, and the lower end of the premixing component is connected to the upper end of the mixing tank. A drive unit is mounted on the upper part of the mixing tank, and a stirring component located inside the mixing tank is mounted on the output end of the drive unit.

2. The metering tank for producing a two-component polyurethane adhesive according to claim 1, characterized in that, The metering tank includes a metering tank body and a first cover plate. A first partition plate is fixedly connected to the middle position of the metering tank body. A first feed pipe and a second feed pipe are respectively provided on the upper two sides of the first cover plate. A first control valve is provided on both the first feed pipe and the second feed pipe. A second partition plate is fixedly connected to the middle position of the first cover plate. The second partition plate corresponds to the first partition plate.

3. The metering tank for producing a two-component polyurethane adhesive according to claim 2, characterized in that, The mixing tank includes a mixing tank body and a second cover plate. The drive unit is disposed on the second cover plate. A discharge pipe is disposed at the bottom of the mixing tank body, and a second control valve is disposed on the discharge pipe.

4. The metering tank for producing a two-component polyurethane adhesive according to claim 3, characterized in that, The premixing component includes a mixing tube, a feed tube, a first spiral blade, and a second spiral blade. The mixing tube is fixedly connected to a second cover plate, and the feed tube is fixedly connected to both sides of the lower end of the metering tank body. An adjusting valve is provided on the feed tube. Multiple sets of the first and second spiral blades are provided inside the mixing tube. The first and second spiral blades are perpendicularly staggered and fixedly connected.

5. The metering tank for producing a two-component polyurethane adhesive according to claim 3, characterized in that, The driving unit includes a driving component, a first rotating shaft, and a second rotating shaft. The output end of the driving component is connected to the first rotating shaft. A first bevel gear is fixedly connected to the first rotating shaft. The second rotating shaft is rotatably connected to a second cover plate. A second bevel gear is fixedly connected to the second rotating shaft, and the second bevel gear meshes with the first bevel gear.

6. The metering tank for producing a two-component polyurethane adhesive according to claim 5, characterized in that, The stirring assembly includes a fixing component, a main stirring fan, and a secondary stirring fan. The main stirring fan is symmetrically distributed on both sides of the second rotating shaft and connected to the second rotating shaft through two sets of fixing components. Multiple sets of equidistantly distributed baffles are fixedly connected to the main stirring fan. The secondary stirring fan is located below the second rotating shaft and connected to the second rotating shaft through a fixing component.

7. The metering tank for producing a two-component polyurethane adhesive according to claim 6, characterized in that, The main stirring fan has a first scraper on its side, which is close to the inner wall of the mixing tank body. The auxiliary stirring fan has a second scraper at its bottom, which is close to the bottom of the mixing tank body.

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