Anti-precipitation device for polyurethane adhesive production

Abstract

The utility model discloses an anti-precipitation device for producing a polyurethane adhesive. The anti-precipitation device comprises a storage tank, a tank cover and an anti-precipitation device, the anti-precipitation device is arranged in the storage tank, the motor drives the spiral blade to operate, and the glue solution is conveyed to the discharge port from the bottom port of the circulating pipe through conveying power generated by operation of the spiral blade, so that bottom settled filler can be brought back to the upper layer, and obvious upper and lower layering is avoided; the problem of precipitation of glue liquid is effectively solved, during later maintenance, only the tank cover needs to be detached to take out the circulating pipe together, the circulating pipe is separated from the spiral blade, logistics maintenance work is greatly facilitated, the support is arranged on the surface of the connecting sleeve, the support abuts against the side wall face in the storage tank through the guide wheel in an attached mode, multi-direction supporting and reinforcing are provided for the circulating pipe, and the service life of the circulating pipe is prolonged. The circulating pipe is firmly installed and is not easy to deviate, and the situation that the circulating pipe is not installed in place and scratches the spiral blade is avoided.

Description

An anti-settling device for polyurethane adhesive production Technical Field

[0001] This utility model relates to the field of polyurethane adhesive production technology, specifically to an anti-settling device for polyurethane adhesive production. Background Technology

[0002] Polyurethane adhesives contain highly polar and chemically active isocyanate and urethane groups, which give them excellent chemical adhesion to materials containing active hydrogen, such as porous materials like foam plastics, wood, leather, fabrics, paper, and ceramics, as well as smooth materials like metals, glass, rubber, and plastics. They are suitable for bonding various materials.

[0003] In the production of polyurethane adhesives, fillers need to be added to improve performance. If the density of the filler is higher than that of the adhesive, sediment will form, affecting the uniformity of filler distribution. Traditional stirring mechanisms can only stir the filler and cannot bring the bottom-sedimented filler back to the top, resulting in obvious layering of filler and affecting the bonding strength of the product.

[0004] To address this issue, we propose an anti-settling device for polyurethane adhesive production. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-settling device for the production of polyurethane adhesives, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sedimentation prevention device for polyurethane adhesive production, comprising a storage tank, a tank cover, and a sedimentation prevention device. The storage tank is covered with a tank cover, and the sedimentation prevention device is installed inside the storage tank. The sedimentation prevention device includes a motor, a spiral blade, a splined shaft, a circulation pipe, a coupling sleeve, a support base, and a discharge port. The motor is centrally mounted on the bottom surface of the storage tank. The spiral blade is rotatably mounted centrally on the bottom surface of the storage tank. The motor is connected to the bottom shaft of the spiral blade. A splined shaft is welded to the top of the spiral blade. A circulation pipe is installed on the flange in the middle of the bottom surface of the tank cover. The circulation pipe is sleeved over the spiral blade, and there is no direct contact between the circulation pipe and the spiral blade. A coupling sleeve is rotatably mounted at the top of the circulation pipe. The splined shaft is inserted into the coupling sleeve. A support base is installed at the bottom port of the circulation pipe, and the support base is fitted and pressed against the bottom surface of the storage tank. A discharge port is opened on the upper surface of the circulation pipe, and the discharge port is connected to the inside of the circulation pipe.

[0007] Preferably, the height of the spiral blade is not less than 80% of the height of the storage tank.

[0008] Preferably, the height of the support base is ≥40mm.

[0009] Preferably, there are at least two discharge ports, and the discharge ports are evenly distributed on the upper surface of the circulation pipe.

[0010] Preferably, a connecting sleeve is fitted onto the lower end of the outer surface of the circulation pipe, a bracket is welded onto the surface of the connecting sleeve, and a guide wheel is rotatably mounted at the end of the bracket, with the guide wheel fitting tightly against the inner side wall of the storage tank.

[0011] Preferably, the number of brackets is not less than three, and the brackets are evenly distributed in the connecting sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention incorporates an anti-sedimentation device inside the storage tank. A motor drives the spiral blades to rotate, and the conveying power generated by the spiral blades transports the adhesive from the bottom port of the circulation pipe to the outlet. This effectively carries back the bottom-sedimented filler to the upper layer, preventing significant stratification and solving the problem of adhesive sedimentation. For later maintenance, simply remove the tank cover and take the circulation pipe out with it, separating the circulation pipe from the spiral blades, greatly facilitating logistical maintenance.

[0014] This invention provides multi-directional support and reinforcement for the circulation pipe by setting a bracket on the surface of the connecting sleeve. The bracket is pressed against the inner side wall of the storage tank by guide wheels, ensuring that the circulation pipe is installed firmly and is not easily displaced, thus avoiding the circulation pipe from being improperly installed and rubbing against the spiral blades. Attached Figure Description

[0015] Figure 1 is a front view cross-sectional structural diagram of the storage tank in this utility model;

[0016] Figure 2 is a schematic diagram of the circulation pipe in this utility model;

[0017] Figure 3 is a front view cross-sectional structural diagram of the circulation pipe in this utility model;

[0018] Figure 4 is a schematic diagram of the structure of the can lid after disassembly in Figure 1 of this utility model.

[0019] In the diagram: storage tank-1, tank cover-2, anti-sedimentation device-3, motor-31, spiral blade-32, spline shaft-33, circulation pipe-34, coupling sleeve-35, support base frame-36, discharge port-37, connecting sleeve-38, bracket-39, guide wheel-310. Detailed Implementation

[0020] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0021] Please refer to Figure 1. This utility model provides an anti-settling device for polyurethane adhesive production, including a storage tank 1, a tank cover 2, and an anti-settling device 3. The top of the storage tank 1 is covered with the tank cover 2, and the anti-settling device 3 is installed inside the storage tank 1.

[0022] Please refer to Figures 3-4. This utility model provides an anti-settling device for polyurethane adhesive production. The anti-settling device 3 includes a motor 31, a spiral blade 32, a splined shaft 33, a circulation pipe 34, a coupling sleeve 35, a support base 36, and a discharge port 37. The motor 31 is centrally mounted on the bottom surface of the storage tank 1. The spiral blade 32 is rotatably mounted centrally on the bottom surface of the storage tank 1. The height of the spiral blade 32 is not less than 80% of the height of the storage tank 1 to ensure that the spiral blade 32 has sufficient feeding range. The motor 31 is connected to the bottom shaft of the spiral blade 32. The splined shaft 33 is welded to the top of the spiral blade 32. The circulation pipe 34 is installed on the flange in the middle of the bottom surface of the tank cover 2. The circulation pipe 34 is sleeved and covers the outside of the spiral blade 32. There is no direct contact. A coupling sleeve 35 is rotatably installed at the top of the circulation pipe 34. The spline shaft 33 is inserted into the coupling sleeve 35 to provide connection support for the top of the spiral blade 32. A support base 36 is installed at the bottom port of the circulation pipe 34. The support base 36 fits tightly against the bottom surface of the storage tank 1 to provide bottom support for the circulation pipe 34. The height of the support base 36 is ≥40mm to ensure sufficient feeding space at the bottom port of the circulation pipe 34. An outlet 37 is opened on the upper surface of the circulation pipe 34. The outlet 37 is connected to the inside of the circulation pipe 34. There are no less than two outlets 37. The outlets 37 are evenly distributed on the upper surface of the circulation pipe 34 to ensure that the adhesive is more evenly distributed after being discharged from the outlets 37 and avoids concentration in one place.

[0023] Specifically, when installing the tank cover 2, the circulation pipe 34 is sleeved on the outside of the spiral blade 32 from top to bottom until the spline shaft 33 and the coupling sleeve 35 are inserted and connected, thereby providing connection support for the top of the spiral blade 32. At the same time, the circulation pipe 34 is pressed against the bottom surface of the storage tank 1 through the support base 36, providing bottom support for the circulation pipe 34, thereby completing the assembly of the circulation pipe 34 and the spiral blade 32.

[0024] In use, to prevent the glue stored in the storage tank 1 from settling, an anti-sedimentation device 3 is installed inside the storage tank 1. The motor 31 drives the spiral blade 32 to rotate, and the conveying power generated by the rotation of the spiral blade 32 transfers the glue from the bottom port of the circulation pipe 34 to the discharge port 37. This can bring the bottom-sedimented filler back to the upper layer, avoid obvious stratification, and effectively solve the problem of glue sedimentation.

[0025] During later maintenance, simply remove the tank cover 2 and take out the circulation pipe 34 along with it, so that the circulation pipe 34 is separated from the spiral blade 32, which greatly facilitates the logistics and maintenance work.

[0026] Please refer to Figure 2. This utility model provides an anti-settling device for polyurethane adhesive production. A connecting sleeve 38 is fitted onto the lower end of the outer surface of the circulation pipe 34. A bracket 39 is welded onto the surface of the connecting sleeve 38. There are no fewer than three brackets 39, and the brackets 39 are evenly distributed on the connecting sleeve 38 so that the brackets 39 can provide multi-directional support for the circulation pipe 34, ensuring that the circulation pipe 34 is installed in the center and avoiding the circulation pipe 34 from being improperly installed and rubbing against the spiral blade 32. A guide wheel 310 is rotatably installed at the end of the bracket 39. The guide wheel 310 fits tightly against the inner side wall of the storage tank 1. The brackets 39 provide support and reinforcement for the circulation pipe 34, ensuring that the circulation pipe 34 is installed firmly and is not easily displaced.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for preventing sedimentation in the production of polyurethane adhesives, comprising a storage tank (1) and a tank cover (2), wherein the top of the storage tank (1) is covered with the tank cover (2); characterized in that: It also includes an anti-sedimentation device (3). The storage tank (1) is equipped with an anti-sedimentation device (3). The anti-sedimentation device (3) includes a motor (31), a spiral blade (32), a splined shaft (33), a circulation pipe (34), a coupling sleeve (35), a support base (36), and a discharge port (37). The motor (31) is installed in the center of the bottom surface of the storage tank (1). The spiral blade (32) is rotatably installed in the center of the bottom surface of the storage tank (1). The motor (31) and the bottom shaft of the spiral blade (32) are connected by a transmission. The top of the spiral blade (32) is welded with a splined shaft (33). The tank cover (2) A circulation pipe (34) is installed on the flange in the middle of the bottom surface. The circulation pipe (34) is sleeved and covered on the outside of the spiral blade (32). There is no direct contact between the circulation pipe (34) and the spiral blade (32). A coupling sleeve (35) is rotatably installed at the top of the inside of the circulation pipe (34). The spline shaft (33) is inserted and connected to the inside of the coupling sleeve (35). A support base (36) is installed at the bottom port of the circulation pipe (34). The support base (36) fits tightly against the bottom surface inside the storage tank (1). A discharge port (37) is opened on the upper surface of the circulation pipe (34). The discharge port (37) is connected to the inside of the circulation pipe (34).

2. The anti-settling device for polyurethane adhesive production according to claim 1, characterized in that: The height dimension of the spiral blade (32) is not less than 80% of the height dimension of the storage tank (1).

3. The anti-settling device for polyurethane adhesive production according to claim 1, characterized in that: The height of the support base (36) is ≥40mm.

4. The anti-settling device for producing polyurethane adhesive according to claim 1, characterized in that: The number of discharge ports (37) is not less than two, and the discharge ports (37) are evenly distributed on the upper surface of the circulation pipe (34).

5. The anti-settling device for producing polyurethane adhesive according to claim 1, characterized in that: A connecting sleeve (38) is fitted on the lower end of the outer surface of the circulation pipe (34). A bracket (39) is welded on the surface of the connecting sleeve (38). A guide wheel (310) is rotatably installed at the end of the bracket (39). The guide wheel (310) fits tightly against the inner side wall of the storage tank (1).

6. The anti-settling device for producing polyurethane adhesive according to claim 5, characterized in that: The number of brackets (39) is not less than 3, and the brackets (39) are evenly distributed in the connecting sleeve (38).

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