Device for detecting heat resistance of polyurethane adhesive

Abstract

The utility model relates to the technical field of polyurethane adhesive detection, in particular to a polyurethane adhesive heat resistance detection device which comprises a support and a heater fixedly installed at the bottom of an inner cavity of the support, a transparent container is placed at the top of the heater, a sealing cover is hinged to the top of the transparent container, and a cleaning assembly is arranged in the sealing cover. A sleeve is fixedly mounted at the bottom of the rotational viscometer, and a stirring assembly is further arranged in the sleeve; the sleeve can extend into the transparent container by different depths through the lifting assembly, and the sleeve is arranged at the bottom of the rotational viscometer, so that the polyurethane adhesive above the container can be isolated, and when the stirrer is used for stirring, the polyurethane adhesive is not influenced by the resistance of the polyurethane adhesive above, so that the polyurethane adhesive can be conveniently and accurately stirred at different height positions; and the heated polyurethane adhesive is subjected to viscosity detection, so that the heat resistance of the polyurethane adhesive is detected, and the reliability and the accuracy of the heat resistance detection of the polyurethane adhesive can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyurethane glue detection technical field, concretely relates to a polyurethane glue heat resistance detection device. BACKGROUND

[0002] Polyurethane glue is an adhesive made by polyurethane resin and curing agent, has excellent bonding strength, wear resistance and weather resistance, is suitable for the bonding of various substrates, in order to guarantee the reliability and stability of polyurethane glue in the actual application process, generally heat resistance of polyurethane glue is detected, and heat resistance detection is usually carried out by heating sample and measuring its physical property change under high temperature, for example, viscosity, hardness or tensile strength etc., when detecting the viscosity of polyurethane glue after heating, generally, the viscosity meter is used, the rotor or agitator of the viscosity meter is used to rotate in the container with polyurethane glue, and the viscosity of polyurethane glue is detected according to the resistance received by the rotor in the rotating process, and the container generally has a certain volume height, so when heating polyurethane glue in the container, the temperature of polyurethane glue at different height positions may be different, although the rotor or agitator of the existing viscosity meter can be inserted into different depths of the container for stirring, when being inserted into different depths for stirring, the bottom of the rotor or agitator is inserted into different depths, but the upper part of the rotor or agitator also stirs in the polyurethane glue at the higher position, when rotating, the viscosity of the polyurethane glue at the higher position is also received, resistance is generated, so the reliability and accuracy of the detection data are affected.

[0003] In view of this, the polyurethane glue heat resistance detection device is provided. UTILITY MODEL CONTENTS

[0004] In view of the above shortcomings of the prior art, the polyurethane glue heat resistance detection device can effectively solve the problem that the bottom of the rotor or agitator is inserted into different depths, but the upper part of the rotor or agitator also stirs in the polyurethane glue at the higher position, when rotating, the viscosity of the polyurethane glue at the higher position is also received, resistance is generated, so the reliability and accuracy of the detection data are affected.

[0005] To achieve the above purpose, the utility model discloses the following technical scheme:

[0006] The utility model provides a polyurethane glue heat resistance detection device, including support and the heater of fixed installation in the bottom of the support inner chamber,

[0007] The top of the heater is placed with the transparent container, the top of the transparent container is hinged with the sealing cover, and the inside of the sealing cover is provided with the cleaning assembly,

[0008] A rotational viscometer is installed above the transparent container, and a sleeve is fixedly installed at the bottom of the rotational viscometer. A stirring component is also installed inside the sleeve.

[0009] The rotational viscometer has a lifting assembly on one side, and the lifting assembly is located inside the bracket.

[0010] Furthermore, the cleaning assembly includes a retaining ring threaded to the inner wall of the sealing cap cavity, and an annular scraper is fixedly installed at the bottom of the retaining ring.

[0011] Furthermore, the stirring assembly includes a fixed rod rotatably mounted on the side wall of the inner cavity of the sleeve, and a stirrer is also fixedly mounted at the bottom of the fixed rod;

[0012] The top of the fixed rod rotates through the rotational viscometer and extends into the interior of the rotational viscometer, and is fixedly mounted on the top of the fixed rod via the output shaft of the internal motor of the rotational viscometer.

[0013] Furthermore, the lifting assembly includes a sliding frame fixedly installed on one side of the rotational viscometer, and a lead screw is threadedly connected to the inner cavity side wall of the sliding frame.

[0014] Furthermore, the bottom of the lead screw is rotatably mounted to the bottom of the inner cavity of the bracket, and the top of the lead screw rotates through the bracket;

[0015] A lifting motor is fixedly installed on the top of the bracket, and the lifting motor is fixedly installed on the top of the lead screw through the output shaft.

[0016] Furthermore, a guide groove is provided on one side of the bracket, and the inner wall of the guide groove is slidably connected to the surface of the sliding frame.

[0017] The technical solution provided by this utility model has the following advantages compared with the known public technology:

[0018] This invention utilizes a lifting assembly to extend the sleeve into different depths within a transparent container. After heating the polyurethane adhesive inside the container, a motor in a rotary viscometer drives a fixed rod and a stirrer to rotate. The sleeve at the bottom of the rotary viscometer isolates the polyurethane adhesive above the container, preventing resistance during stirring. This allows for precise viscosity testing of the heated polyurethane adhesive at different heights, thus improving the reliability and accuracy of heat resistance testing. Furthermore, a cleaning assembly within the sealing cap effectively removes any polyurethane adhesive adhering to the sleeve surface. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a first-view structural diagram of the present invention;

[0021] Figure 2 This is a partial cross-sectional structural diagram of the transparent container of this utility model;

[0022] Figure 3 This is a partial cross-sectional structural diagram of the sleeve of this utility model.

[0023] The labels in the diagram represent: 1. Support; 2. Heater; 3. Transparent container; 4. Sealing cap; 5. Sleeve; 6. Rotational viscometer; 7. Guide groove; 8. Lead screw; 9. Sliding frame; 10. Lifting motor; 11. Fixing ring; 12. Annular scraper; 13. Fixing rod; 14. Stirrer. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] The present invention will be further described below with reference to the embodiments.

[0026] A device for testing the heat resistance of polyurethane adhesive includes a bracket 1 and a heater 2 fixedly installed at the bottom of the inner cavity of the bracket 1. A transparent container 3 is placed on the top of the heater 2. A sealing cover 4 is hinged to the top of the transparent container 3. A cleaning component is provided inside the sealing cover 4. A rotational viscometer 6 is installed above the transparent container 3. A sleeve 5 is fixedly installed at the bottom of the rotational viscometer 6. A stirring component is also provided inside the sleeve 5. A lifting component is provided on one side of the rotational viscometer 6 and is located inside the bracket 1.

[0027] Specifically, the cleaning assembly includes a fixing ring 11 threaded to the inner wall of the sealing cap 4, and an annular scraper 12 fixedly installed at the bottom of the fixing ring 11. The stirring assembly includes a fixing rod 13 rotatably installed on the inner wall of the sleeve 5, and a stirrer 14 fixedly installed at the bottom of the fixing rod 13. The top of the fixing rod 13 rotates through the rotational viscometer 6 and extends into the interior of the rotational viscometer 6, and is fixedly installed on the top of the fixing rod 13 through the output shaft of the internal motor of the rotational viscometer 6.

[0028] Specifically, the heater 2 installed inside the bracket 1 can be used to heat the polyurethane adhesive in the transparent container 3. When the polyurethane adhesive is heated to the corresponding temperature, it is easy to check the state of the polyurethane adhesive inside the transparent container 3. After the polyurethane adhesive is heated, the rotational viscometer 6 can be moved to the corresponding height by the lifting component installed on one side of the rotational viscometer 6, so that the sleeve 5 at the bottom of the rotational viscometer 6 and the stirring component inside the sleeve 5 can be inserted into the polyurethane adhesive in the transparent container 3. The lifting component can be used to move the sleeve 5 and the stirring component inside the sleeve 5 to different depths according to different testing requirements. At this time, the motor inside the rotational viscometer 6 can drive the fixed rod 13 installed inside the sleeve 5 to rotate. The stirrer 14 at the bottom of the fixed rod 13 rotates in the heated polyurethane adhesive. The rotational viscometer 6 detects the resistance and torque generated by the stirrer 14 in the polyurethane adhesive, thereby detecting the viscosity of the polyurethane adhesive at the corresponding temperature, and thus testing the heat resistance of the polyurethane adhesive.

[0029] Specifically, the sleeve 5 at the bottom of the rotary viscometer 6 can isolate the polyurethane adhesive above the transparent container 3 when the stirrer 14 rotates inside the polyurethane adhesive. This avoids the resistance of the polyurethane adhesive above the stirrer 14 during rotation, thus preventing the reliability of the test from being affected. After the stirring test is completed, the sleeve 5 and the stirring component inside the sleeve 5 can be moved out of the transparent container 3 by the lifting component. During the upward movement, the polyurethane adhesive adhering to the surface of the sleeve 5 can be scraped off by the annular scraper 12 at the bottom of the fixing ring 11. The fixing ring 11 and the sealing cover 4 are threadedly connected, which facilitates disassembly and installation, and makes it convenient to clean and replace components such as the annular scraper 12.

[0030] Furthermore, the lifting assembly includes a sliding frame 9 fixedly installed on one side of the rotational viscometer 6. A lead screw 8 is threadedly connected to the inner cavity side wall of the sliding frame 9. The bottom of the lead screw 8 is rotatably installed at the bottom of the inner cavity of the bracket 1, and the top of the lead screw 8 rotates through the bracket 1. A lifting motor 10 is fixedly installed on the top of the bracket 1. The lifting motor 10 is fixedly installed on the top of the lead screw 8 through an output shaft. A guide groove 7 is provided on one side of the bracket 1, and the inner cavity side wall of the guide groove 7 is slidably connected to the surface of the sliding frame 9.

[0031] Specifically, when it is necessary to adjust the height of the rotational viscometer 6 and the stirring assembly inside the sleeve 5, the output can be provided by the lifting motor 10 at the top of the bracket 1, which can drive the lead screw 8 at the bottom of the inner cavity of the bracket 1 to rotate. Because the sliding frame 9 is limited and guided by the guide groove 7 of the bracket 1, when the lead screw 8 rotates, the rotational viscometer 6 can be moved up and down through the sliding frame 9. While the rotational viscometer 6 moves, the sleeve 5 at the bottom of the rotational viscometer 6 and the stirring assembly can move synchronously.

[0032] The working principle of this utility model is as follows: The heater 2 installed inside the bracket 1 can be used to heat the polyurethane adhesive in the transparent container 3. When the polyurethane adhesive is heated to the corresponding temperature, it is easy to check the state of the polyurethane adhesive inside the transparent container 3. After the polyurethane adhesive is heated, the output can be generated by the lifting motor 10 at the top of the bracket 1, which can drive the lead screw 8 at the bottom of the inner cavity of the bracket 1 to rotate. Because the sliding frame 9 is limited and guided by the guide groove 7 of the bracket 1, when the lead screw 8 rotates, the sliding frame 9 can drive the rotational viscometer 6 to move up and down for adjustment. When the rotational viscometer 6 moves, the sleeve 5 at the bottom of the rotational viscometer 6 and the stirring component can move synchronously, moving the rotational viscometer 6 to the corresponding height so that the sleeve 5 at the bottom of the rotational viscometer 6 and the stirring component inside the sleeve 5 can be inserted into the polyurethane adhesive in the transparent container 3. The lifting component can move the sleeve 5 and the stirring component inside the sleeve 5 to different depths according to different testing requirements. At this time, the motor inside the rotational viscometer 6 can drive the rotational viscometer 6 to rotate. The fixed rod 13, which is rotatably installed inside the sleeve 5, rotates. The stirrer 14 at the bottom of the fixed rod 13 rotates inside the heated polyurethane adhesive. The resistance and torque generated by the stirrer 14 as it rotates inside the polyurethane adhesive are detected by the rotational viscometer 6. This is used to detect the viscosity of the polyurethane adhesive at the corresponding temperature, thereby testing the heat resistance of the polyurethane adhesive. The sleeve 5 at the bottom of the rotational viscometer 6 can isolate the polyurethane adhesive above the transparent container 3 while the stirrer 14 is rotating inside the polyurethane adhesive, thus avoiding the influence of the resistance of the polyurethane adhesive above the stirrer 14 during its rotation, which would affect the reliability of the test. After the stirring test is completed, the sleeve 5 and the stirring component inside the sleeve 5 can be removed from the transparent container 3 by the lifting component. During the upward movement, the polyurethane adhesive adhering to the surface of the sleeve 5 can be scraped off by the annular scraper 12 at the bottom of the fixing ring 11. The fixing ring 11 and the sealing cover 4 are threadedly connected, which facilitates disassembly and installation, and makes it convenient to clean and replace components such as the annular scraper 12.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A polyurethane adhesive heat resistance detection device, characterized by, The utility model relates to a transparent container (3) is placed on the top of the heater (2), the top of the transparent container (3) is hinged with the sealing cover (4), and the inside of the sealing cover (4) is provided with a cleaning assembly. The utility model discloses a transparent container (3) is arranged above, the bottom of the rotary viscometer (6) is fixedly installed with the sleeve (5), and the inside of the sleeve (5) is further provided with a stirring assembly. The utility model discloses a rotary viscometer (6) one side is provided with lifting assembly, and lifting assembly sets up in the inside of support (1). The cleaning assembly includes a fixed ring (11) threadedly connected to the inner cavity side wall of the sealing cover (4), and the bottom of the fixed ring (11) is fixedly installed with an annular scraper (12). The stirring assembly includes a fixed rod (13) rotatably installed in the inner cavity side wall of the sleeve (5), and the bottom of the fixed rod (13) is further fixedly installed with a stirrer (14).

2. The device for detecting heat resistance of polyurethane adhesive according to claim 1, wherein, The top of the fixed rod (13) is rotatably arranged through the rotary viscometer (6) and extends into the rotary viscometer (6), and is fixedly installed on the top of the fixed rod (13) through the output shaft of the internal motor of the rotary viscometer (6).

3. The device for detecting heat resistance of polyurethane adhesive according to claim 1, characterized in that, The lifting assembly includes a sliding frame (9) fixedly installed on one side of the rotary viscometer (6), and the inner cavity side wall of the sliding frame (9) is threadedly connected with a lead screw (8). The bottom of the lead screw (8) is rotatably installed in the inner cavity bottom of the support (1), and the top of the lead screw (8) is rotatably arranged through the support (1).

4. The device for detecting heat resistance of polyurethane adhesive according to claim 1, characterized in that, The top of the support (1) is fixedly installed with a lifting motor (10), and the lifting motor (10) is fixedly installed on the top of the lead screw (8) through the output shaft.

5. The device for detecting the heat resistance of polyurethane adhesive according to claim 4, characterized in that, One side of the support (1) is provided with a guide groove (7), and the inner cavity side wall of the guide groove (7) is slidably connected to the surface of the sliding frame (9). ​ 6. The device for detecting the heat resistance of polyurethane adhesive according to claim 5, characterized in that, ​

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