Heating device suitable for polyurethane elastomer forming

Abstract

The utility model discloses a heating device suitable for polyurethane elastomer forming. The device mainly comprises a heating box, a heating rod, a pouring mold, a test piece pouring groove and a heating wire in the test piece pouring groove, a heating rod is arranged in the heating box, a power supply box is arranged at the top to be electrically connected with the heating rod, and a heating wire embedded in the test piece pouring groove is connected to a power supply through a conductor wire. The inner side of the heating box is covered with heat preservation cotton to reduce heat loss, the bottom is provided with suckers for fixing the device, and the two sides are connected with pressing plates through screws to enhance stability. In addition, a mounting box is arranged at the top of the heating box, and a built-in socket is matched with an electric contact head at the end of the heating rod to achieve rapid and safe electrical connection. According to the device, uniform and stable heat is provided through the synergistic effect of the heating rod and the heating wire, efficient utilization of energy is ensured through heat preservation cotton, the quality of a polyurethane product prepared on site can be remarkably improved, the performance level of the polyurethane product is close to the performance level under the laboratory condition, and the device is particularly suitable for application occasions where high-quality polyurethane elastomers need to be prepared on site.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pouring equipment, especially to a polyurethane elastomer forming heating device. BACKGROUND

[0002] Pouring polyurethane elastomer is widely used in many industries due to its excellent physical and mechanical properties and simple processing technology, accounting for about 60% of the total polyurethane elastomer. This material is usually manufactured by the prepolymer method, that is, a prepolymer with isocyanate group terminated is first synthesized, and then reacted with amine or alcohol to form the final product. In recent years, polyurethane has shown excellent performance in the application of wear resistance of hydraulic machinery and hydraulic structures, especially in severe wear and corrosion environment. However, it is difficult to achieve the ideal molding temperature above 100℃ to ensure the best performance during on-site construction, especially for local pouring of large metal parts, especially when handling large metal parts or local pouring. It is neither practical nor economical to heat these large test pieces as a whole, so only local heating can be used, which results in lower curing temperature than expected, prolonging the curing time of polyurethane and making the comprehensive performance of the final product not comparable to the samples prepared in the laboratory environment.

[0003] In addition, the traditional heating method may also cause uneven heat distribution, affecting the consistency and quality stability of polyurethane material. In order to solve the above problems, the industry has been seeking a method that can effectively improve the molding efficiency and quality of polyurethane elastomer under on-site construction conditions. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide a polyurethane elastomer forming heating device for improving the molding process of pouring polyurethane elastomer under on-site construction conditions. The device can ensure more uniform heat distribution, improve curing efficiency and product quality, so that the polyurethane products prepared on site can approach the performance level under laboratory conditions.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A polyurethane elastomer forming heating device, comprising a heating box and a heating rod, a pouring mold is arranged above a test piece pouring groove, a heating box is arranged outside the pouring mold, a heating rod is inserted into the heating box, a power box is arranged at the top surface of the heating box and electrically connected with the heating rod, a heating wire is embedded in the test piece pouring groove, and the heating wire is connected with the power box through a conductive wire.

[0007] In the preferred scheme, heat insulation cotton is arranged at the inner side of the heating box.

[0008] In the preferred solution, the bottom surface of the heating box is provided with a suction cup, and the heating box is connected to the upper end surface of the test piece by suction.

[0009] In the preferred solution, screw holes are formed in the two sides of the heating box, a screw rod is threadedly connected with the screw holes, one end of the screw rod is provided with a first handle, and the other end of the screw rod is perpendicularly connected with the pressing plate.

[0010] In the preferred solution, a mounting box is arranged on the top surface of the heating box, a socket is arranged at the end of the mounting box, the socket is electrically connected with the power box, the heating rod is perpendicularly inserted into the mounting box, and the end of the heating rod is inserted into the socket and electrically connected with the socket.

[0011] In the preferred solution, one end of the heating rod is provided with an electric contact head, the other end of the heating rod is provided with a second handle, and the heating rod is electrically connected with the conductive wire in the socket through the electric contact head.

[0012] In the preferred solution, the heating wires are uniformly distributed on the bottom and the side wall of the test piece pouring groove, so that the polyurethane material can obtain uniform heat distribution from all directions during the curing process.

[0013] The polyurethane elastomer forming heating device has the following beneficial effects:

[0014] 1. The heating rod arranged in the heating box and the heating wires arranged in the test piece pouring groove jointly act, so that the polyurethane material can obtain uniform and stable heat distribution during the curing process, the problem of uneven temperature caused by the traditional local heating method is effectively solved, the curing time is shortened, and the comprehensive performance of the product is improved.

[0015] 2. The heat loss is reduced by the heat preservation cotton arranged on the inner side of the heating box, the energy is effectively utilized, the energy consumption is reduced, and the heating effect is further enhanced.

[0016] 3. The socket in the top mounting box and the electric contact head at the end of the heating rod realize quick and safe electrical connection, the plug-in and pull-out operation of the heating rod is facilitated, and the safety and reliability of the electrical connection are ensured. The electrical connection design between the power box and the heating rod simplifies the wiring, reduces the fault points, and improves the overall safety of the system.

[0017] 4. The heating rod adopts the plug-in connection mode, the number of the heating rods inserted can be freely controlled, and then the temperature of the heating box can be freely controlled, so that the temperature of the pouring point meets different requirements. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described in connection with the drawings and embodiments:

[0019] Figure 1 It is the whole structure schematic view of the utility model;

[0020] Figure 2 It is the whole structure side view of the utility model;

[0021] Figure 3 It is the side view plan of the utility model;

[0022] Figure 4 It is the heating rod part structure enlarged schematic view of the utility model;

[0023] Figure 5 It is the inside structure bottom view of the utility model.

[0024] In the drawing: test piece 1, heating box 2, power supply box 3, heating rod 4, heating wire 5, conducting wire 6, heat insulation cotton 7, suction cup 8, installation box 9, pouring mold 10, screw rod 11, first handle 12, pressing plate 13, electric contact head 14, second handle 15, socket 16, polyurethane material 17. DETAILED DESCRIPTION

[0025] As Figure 1 and Figure 2 shown, a kind of suitable for polyurethane elastomer forming heating device, its main component includes heating box 2 and heating rod 4.Specifically, pouring groove of test piece 1 is equipped with pouring mold 10 above, and this pouring mold 10 is used to form the shape of polyurethane material 17;To ensure that pouring area is fully protected and can be evenly heated, the outside of pouring mold 10 is covered with heating box 2;

[0026] Heating box 2 is inserted with several heating rods 4, and these heating rods 4 are electrically connected with power supply through power supply box 3 at the top surface of heating box 2, to provide necessary power support for heating process;In addition, heating wire 5 is embedded in the pouring groove of test piece 1, and heating wire 5 is connected to power supply box 3 through conducting wire 6, to ensure that polyurethane material 17 in pouring groove can obtain uniform heat distribution from inside.

[0027] Preferred scheme as Figure 2 Shown, the inside of heating box 2 is provided with heat insulation cotton 7;The design purpose of heat insulation cotton 7 is to effectively block heat loss to the outside, keep the temperature of the inside of heating box 2 stable;This not only helps to maintain the required curing temperature, but also can significantly reduce energy consumption, so that heating process is more efficient and energy-saving.

[0028] Preferred scheme as Figure 2 and Figure 3As shown in the drawings, the bottom surface of the heating box 2 is provided with a suction cup 8, and the heating box 2 is connected to the upper end surface of the test piece 1 through the suction cup 8. This design ensures the stability of the heating box 2 during use, and is particularly suitable for test pieces of different shapes and sizes. Through the suction effect of the suction cup 8, firm fixation can be achieved without damaging the surface of the test piece, ensuring that the heating box 2 will not shift or fall off during heating.

[0029] As shown in the drawings, the bottom surface of the heating box 2 is provided with a suction cup 8, and the heating box 2 is connected to the upper end surface of the test piece 1 through the suction cup 8. This design ensures the stability of the heating box 2 during use, and is particularly suitable for test pieces of different shapes and sizes. Through the suction effect of the suction cup 8, firm fixation can be achieved without damaging the surface of the test piece, ensuring that the heating box 2 will not shift or fall off during heating. Figure 2 Figure 3 As shown in the drawings, the two sides of the heating box 2 are provided with threaded holes, and the threaded holes are threadedly connected with a screw rod 11. One end of the screw rod 11 is provided with a first handle 12, and the other end of the screw rod 11 is connected with a pressing plate 13 in a perpendicular manner. By rotating the first handle 12, the screw rod 11 can be rotated and extended forward and backward, thereby pressing the pouring mold 10 with the pressing plate 13 and completing further fixing work.

[0030] As shown in the drawings, the two sides of the heating box 2 are provided with threaded holes, and the threaded holes are threadedly connected with a screw rod 11. One end of the screw rod 11 is provided with a first handle 12, and the other end of the screw rod 11 is connected with a pressing plate 13 in a perpendicular manner. By rotating the first handle 12, the screw rod 11 can be rotated and extended forward and backward, thereby pressing the pouring mold 10 with the pressing plate 13 and completing further fixing work. Figure 4 Figure 5 As shown in the drawings, the top surface of the heating box 2 is provided with a mounting box 9, and the end of the mounting box 9 is provided with a socket 16. The socket 16 is electrically connected with the power box 3 for providing power for the heating rod 4.

[0031] The heating rod 4 is vertically inserted into the side of the mounting box 9, and the end of the heating rod 4 is inserted into the socket 16 and electrically connected with the socket 16. This design not only simplifies the wiring and reduces the failure points, but also facilitates the plug-in and plug-out operation of the heating rod 4, and improves the convenience of maintenance.

[0032] As shown in the drawings, the two sides of the heating box 2 are provided with threaded holes, and the threaded holes are threadedly connected with a screw rod 11. One end of the screw rod 11 is provided with a first handle 12, and the other end of the screw rod 11 is connected with a pressing plate 13 in a perpendicular manner. By rotating the first handle 12, the screw rod 11 can be rotated and extended forward and backward, thereby pressing the pouring mold 10 with the pressing plate 13 and completing further fixing work. Figure 4 Figure 5 As shown in the drawings, one end of the heating rod 4 is provided with a live head 14, and the other end of the heating rod 4 is provided with a second handle 15. The heating rod 4 is electrically connected with the conductive wire in the socket 16 through the live head 14.

[0033] The second handle 15 is designed to be insulated and heat-insulated, which facilitates the user to pull out and disassemble the heating rod 4. When the heating rod 4 is inserted into the socket 16, the live head 14 at the end of the heating rod 4 immediately conducts with the socket 16 and the power box 3 and heats up. The heating rod 4 adopts a plug-in connection mode, which can freely control the number of heating rods 4 inserted, thereby freely controlling the temperature of the heating box and meeting different requirements of the pouring point.

[0034] ​​​The specific use method of the device is as follows: first, place the test piece 1 in the pouring groove and set the pouring mold 10, then cover the heating box 2 outside the pouring mold 10 and fix it on the upper end face of the test piece 1 through the suction cup 8. By rotating the first handle 12 on the screw rod 11, the position of the pressing plate 13 is adjusted to ensure that the heating box 2 is in close contact with the test piece 1; next, the heating rod 4 is inserted into the socket 16 of the mounting box 9, and the heating system is started by power supply box 3; the heating rod 4 and the heating wire 5 buried in the pouring groove work together to ensure that the polyurethane material 17 obtains uniform and stable heat distribution during the curing process. The heat preservation cotton 7 effectively reduces the heat loss and keeps the temperature stable. After curing, turn off the power, and after natural cooling, disassemble the heating box 2 and the pouring mold 10.

Claims

1. A heating device suitable for molding polyurethane elastomers, comprising a heating box (2) and a heating rod (4), characterized in that: A casting mold (10) is installed above the casting tank of the specimen (1). A heating box (2) is installed on the outside of the casting mold (10). A heating rod (4) is inserted inside the heating box (2). A power box (3) is installed on the top surface of the heating box (2) and is electrically connected to the heating rod (4). A heating wire (5) is embedded in the casting tank of the specimen (1). The heating wire (5) is connected to the power box (3) through a conductive wire (6).

2. The heating device for molding polyurethane elastomers according to claim 1, characterized in that: Insulation cotton (7) is provided on the inner side of the heating box (2).

3. The heating device for molding polyurethane elastomers according to claim 1, characterized in that: A suction cup (8) is provided on the bottom surface of the heating box (2), and the heating box (2) is connected to the upper surface of the specimen (1) by suction cup (8).

4. The heating device for molding polyurethane elastomers according to claim 1, characterized in that: The heating box (2) has threaded holes on both sides, and the screw (11) is threadedly connected to the threaded holes. One end of the screw (11) is provided with a first handle (12), and the other end of the screw (11) is vertically connected to the pressure plate (13).

5. The heating device for molding polyurethane elastomers according to claim 1, characterized in that: The top surface of the heating box (2) is provided with an installation box (9), and the end of the installation box (9) is provided with a socket (16), which is electrically connected to the power box (3); the heating rod (4) is vertically inserted into the side of the installation box (9), and the end of the heating rod (4) is inserted into the socket (16) and electrically connected to the socket (16).

6. The heating device for molding polyurethane elastomers according to claim 5, characterized in that: A contact (14) is provided at one end of the heating rod (4), and a second handle (15) is provided at the other end of the heating rod (4). The heating rod (4) is electrically connected to the conductive wire in the socket (16) through the contact (14).

7. The heating device for molding polyurethane elastomers according to claim 1, characterized in that: The heating wire (5) is evenly distributed at the bottom and sidewalls of the casting groove of the specimen (1) to ensure that the polyurethane material (17) can obtain a uniform heat distribution from all directions during the curing process.

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