Cooling equipment for polyurethane sealant production
By designing a cooling device with a hollow transmission shaft and cooling plate, the problem of low cooling efficiency of traditional cooling devices was solved, enabling rapid cooling of polyurethane sealant and improving product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional polyurethane sealant cooling devices have poor cooling efficiency and cannot quickly cool polyurethane sealant.
A cooling device comprising a hollow transmission shaft and a cooling plate was designed. The rotation of the transmission shaft drives the cooling plate to rotate, and the cooling medium is transported in the cooling plate, achieving simultaneous stirring and cooling, thereby improving cooling efficiency.
This accelerates the cooling rate of the polyurethane sealant, ensuring efficient cooling and improving product quality stability.
Smart Images

Figure CN224065757U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sealant cooling technology, and in particular relates to a cooling device for the production of polyurethane sealant. Background Technology
[0002] Polyurethane sealant is a high-performance sealing material widely used in construction, automotive, and electronics industries due to its excellent elasticity, adhesion, and weather resistance. Cooling is crucial in its production process, typically using cooling water or air to control the reaction temperature and ensure the polymerization reaction proceeds within a suitable temperature range. The cooling system not only helps control the reaction rate and prevents overheating that could lead to quality degradation or safety hazards, but also promotes the proper formation of polyurethane chains, guaranteeing the final performance of the product. Cooling processes may include cooling jackets for the reactor, cooling coils, or direct spray cooling. Through precise temperature control, the viscosity, curing time, and final hardness of the polyurethane sealant are optimized, ensuring stable product quality and compliance with standards.
[0003] However, traditional technologies have some problems: traditional polyurethane sealant cooling devices mostly involve setting a cooling source outside the tank or continuously stirring the polyurethane sealant to promote rapid heat exchange between the polyurethane sealant and the outside environment. This method has poor heat exchange efficiency and cannot quickly cool the polyurethane sealant. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model provides a cooling device for polyurethane sealant production, which solves the problem of poor cooling efficiency in traditional polyurethane sealant cooling devices.
[0005] This utility model is implemented as follows: a cooling device for producing polyurethane sealant includes a tank for holding polyurethane sealant. A tank cover is inserted and installed on the upper part of the tank. A transmission shaft is rotatably installed on the lower part of the tank cover. The transmission shaft is hollow and a cooling assembly is provided at the lower part of the transmission shaft. The cooling assembly includes a cooling plate, which is fixed to the outside of the transmission shaft and communicates with the transmission shaft.
[0006] As a preferred embodiment of the present invention, a plurality of cooling plates are provided, and the plurality of cooling plates are arranged in a circumferential array outside the transmission shaft.
[0007] As a preferred embodiment of this utility model, a large gear is fixedly connected to the upper part of the transmission shaft, and a small gear is meshed with the large gear, and multiple small gears are provided.
[0008] As a preferred embodiment of this invention, a plurality of small gears are rotatably mounted in a circumferential array on the lower part of the can lid, and a stirring paddle is fixedly connected to the lower part of each small gear.
[0009] In a preferred embodiment of this invention, the bottom of the tank is hollow, an output pipe is fixedly connected to the bottom of the tank, and the lower part of the transmission shaft is rotatably connected to and passes through the bottom of the tank.
[0010] As a preferred embodiment of this utility model, a support frame is fixedly installed on the upper part of the can lid, a motor is fixedly installed in the middle of the support frame, and the output end of the motor is fixedly connected to the transmission shaft.
[0011] As a preferred embodiment of this utility model, a transmission pump is fixedly installed on the upper part of the support frame, the drive shaft of the transmission pump is fixedly connected to the drive shaft of the motor, the output end of the transmission pump is fixedly connected to a transmission seat through a transmission pipe, the support seat fixed on the support frame is connected to the transmission shaft inside, and the transmission shaft has an input port at the support seat position.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] In this invention, when cooling polyurethane sealant inside a tank, the first step is to drive the transmission shaft to rotate, which in turn drives the cooling plates in the cooling assembly to rotate. Multiple cooling plates, driven by the transmission shaft, stir and cool the polyurethane sealant. To address the issue of poor stirring and cooling efficiency, both the transmission shaft and the cooling plates are hollow. During cooling, the transmission shaft carries the cooling medium through the cooling plates, allowing for simultaneous stirring and cooling while the cooling medium, in conjunction with the cooling plates, ensures full contact and cooling of the polyurethane sealant, thus accelerating the cooling rate. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present utility model;
[0015] Figure 2 This is a schematic diagram of the cooling component structure provided in an embodiment of the present invention;
[0016] Figure 3 This is a schematic diagram of the stirring paddle structure provided in an embodiment of the present invention;
[0017] Figure 4 This is a schematic diagram of the transfer pump structure provided in an embodiment of the present invention.
[0018] In the diagram: 1. Tank body; 2. Tank lid; 3. Support frame; 4. Motor; 5. Transfer pump; 6. Transfer pipe; 7. Transfer shaft; 8. Transfer seat; 9. Cooling assembly; 10. Output pipe;
[0019] 901. Large gear; 902. Cooling plate; 903. Small gear; 904. Agitator. Detailed Implementation
[0020] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0021] The structure of this utility model will now be described in detail with reference to the accompanying drawings.
[0022] like Figures 1 to 4 As shown in the figure, a cooling device for polyurethane sealant production provided by this utility model embodiment includes a tank 1 for holding polyurethane sealant. A tank cover 2 is inserted and installed on the upper part of the tank 1. A transmission shaft 7 is rotatably installed on the lower part of the tank cover 2. The transmission shaft 7 is hollow and a cooling assembly 9 is provided at the lower part of the transmission shaft 7. The cooling assembly 9 includes a cooling plate 902, which is fixed to the outside of the transmission shaft 7 and communicates with the transmission shaft 7. Multiple cooling plates 902 are provided and arranged in a circumferential array outside the transmission shaft 7.
[0023] The above-mentioned cooling equipment for producing polyurethane sealant, when cooling the polyurethane sealant in the tank 1, firstly drives the transmission shaft 7 to rotate, which can drive the cooling plate 902 in the cooling assembly 9 to rotate. Multiple cooling plates 902 stir and cool the polyurethane sealant placed in the tank under the drive of the transmission shaft 7.
[0024] To address the issue of poor stirring and cooling efficiency, both the transmission shaft 7 and the cooling plate 902 are hollow. During cooling, the cooling medium is transferred to the cooling plate 902 through the transmission shaft 7. This allows for simultaneous stirring and cooling, while the cooling medium works in conjunction with the cooling plate 902 to ensure full contact with the polyurethane sealant, thus accelerating the cooling rate.
[0025] In this embodiment, a large gear 901 is fixedly connected to the upper part of the transmission shaft 7, and a small gear 903 is meshed with the large gear 901. Multiple small gears 903 are arranged in a circumferential array and rotatably mounted on the lower part of the tank cover 2. A stirring paddle 904 is fixedly connected to the lower part of each small gear 903. The bottom of the tank body 1 is hollow, and an output pipe 10 is fixedly connected to the bottom of the tank body 1. The lower part of the transmission shaft 7 is rotatably connected to and passes through the bottom of the tank body 1.
[0026] To further accelerate the stirring rate and allow the cooling plate 902 to fully contact and cool the sealant, the transmission shaft 7 can drive the large gear 901 to rotate when it rotates. In turn, the large gear 901 drives the small gear 903 to rotate the stirring paddle 904, which stirs the sealant at the edge of the tank 1 and assists the cooling plate 902 in cooling.
[0027] In this embodiment, a support frame 3 is fixedly installed on the upper part of the can lid 2, and a motor 4 is fixedly installed in the middle of the support frame 3. The output end of the motor 4 is fixedly connected to the transmission shaft 7. A transmission pump 5 is fixedly installed on the upper part of the support frame 3. The drive shaft of the transmission pump 5 is fixedly connected to the drive shaft of the motor 4. The output end of the transmission pump 5 is fixedly connected to a transmission seat 8 through a transmission pipe 6. The support seat fixed on the support frame 3 is connected to the transmission shaft 7. The transmission shaft 7 has an input port at the support seat position.
[0028] To drive the transmission shaft 7, a motor 4 is fixedly installed on the upper support frame 3 of the tank cover 2. The output end of the motor 4 is fixedly connected to the transmission shaft 7 to realize the electric drive of the transmission shaft 7. Furthermore, during the cooling transmission, the drive shaft of the motor 4 can also drive the transmission pump 5 to work. The input end of the transmission pump 5 is then connected to the cooling pool through a pipe to transmit the cooling medium to the transmission seat 8, and then to the transmission shaft 7. Finally, the medium is transmitted to the static cooling pool through the output pipe 10 at the bottom of the tank body 1 for circulation.
[0029] The working principle of this utility model:
[0030] When cooling the polyurethane sealant in tank 1, the transmission shaft 7 is driven to rotate, which in turn drives the cooling plates 902 in the cooling assembly 9 to rotate. Multiple cooling plates 902, driven by the transmission shaft 7, stir and cool the polyurethane sealant. To solve the problem of overlapping stirring and cooling efficiencies, both the transmission shaft 7 and the cooling plates 902 are hollow. During cooling, the cooling medium is transferred to the cooling plates 902 through the transmission shaft 7. This allows for simultaneous stirring and cooling, while the cooling medium ensures full contact between the cooling plates 902 and the polyurethane sealant, thus accelerating the cooling rate.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cooling apparatus for polyurethane sealant production, comprising a tank (1) for placing polyurethane sealant, characterized in that: The upper part of the tank body (1) is inserted and installed with a tank cover (2), Wherein, the lower part of the tank cover (2) is rotatably installed with a transmission shaft (7), the transmission shaft (7) is hollow, and the lower part of the transmission shaft (7) is provided with a cooling assembly (9), Wherein, the cooling assembly (9) comprises a cooling plate (902), the cooling plate (902) is fixed outside the transmission shaft (7), and penetrates the transmission shaft (7).
2. The cooling apparatus for producing a polyurethane sealant according to claim 1, wherein: The cooling plate (902) is provided with a plurality of cooling plates (902), and a plurality of cooling plates (902) are arranged circumferentially outside the transmission shaft (7).
3. The cooling apparatus for producing polyurethane sealant according to claim 1, wherein: The upper part of the transmission shaft (7) is fixedly connected with a large gear (901), the large gear (901) is engaged with a small gear (903), and the small gear (903) is provided with a plurality of small gears (903).
4. The cooling apparatus for producing a polyurethane sealant according to claim 3, wherein: A plurality of small gears (903) are circumferentially arranged and rotatably installed at the lower part of the tank cover (2), and each small gear (903) is fixedly connected with a stirring paddle (904) at the lower part.
5. The cooling apparatus for producing a polyurethane sealant according to claim 4, wherein: The bottom of the tank body (1) is hollow, the bottom of the tank body (1) is fixedly connected with an output pipe (10), the lower part of the transmission shaft (7) is rotatably connected with the bottom of the tank body (1) and penetrates.
6. The cooling apparatus for producing a polyurethane sealant according to claim 1, wherein: The upper part of the tank cover (2) is fixedly installed with a support frame (3), the middle part of the support frame (3) is fixedly installed with a motor (4), and the output end of the motor (4) is fixedly connected with the transmission shaft (7).
7. The cooling apparatus for producing polyurethane sealant according to claim 6, wherein: The upper part of the support frame (3) is fixedly installed with a transmission pump (5), the drive shaft of the transmission pump (5) is fixedly connected with the drive shaft of the motor (4), the output end of the transmission pump (5) is fixedly connected with a transmission seat (8) through a transmission pipe (6), the support seat fixed on the support frame (3) is connected with the transmission shaft (7), and the transmission shaft (7) is provided with an input port at the position of the support seat.