A high-temperature state testing system and testing method for methyl MQ silicone resin

Abstract

The present invention discloses a high-temperature state testing system for methyl MQ silicone resin in the technical field of resin high-temperature testing devices, which includes a base, a convex platform, a placement cavity, an extrusion unit, a heat conduction unit, a floating column, a push rod, and a floating sleeve. A jack is provided at the lower end of the floating sleeve, and a detection unit is arranged in the jack. The floating column is driven by a lifting unit to move vertically. By driving the floating column to move upward by the lifting unit, during the upward movement of the floating column, the floating sleeve will be pushed by the push rod. When the push rod moves upward, it will compress the third spring and generate a pushing force on the pressure block through the third spring to generate a squeezing force on the pressure sensor. Therefore, the pressure sensor can detect the acting force of the push rod on the floating sleeve when it moves upward, and the floating sleeve is subjected to the acting force of the methyl MQ silicone resin. Therefore, by collecting the magnitude of the data fed back by the pressure sensor, the deformation degree of the methyl MQ silicone resin can be determined.

Description

Technical Field

[0001] The present invention relates to the technical field of resin high-temperature testing devices, and particularly to a high-temperature state testing system and testing method for methyl MQ silicone resin. Background Art

[0002] Methyl MQ (silicone) resin is a new type of organosilicon polymer material with a three-dimensional (non-linear) structure whose molecules are based on Si-O bonds. Thanks to its long-chain spherical molecular structure, it is endowed with good mechanical properties and excellent properties such as high and low temperature resistance, electrical insulation, moisture-proof, and waterproof. It has the following characteristics: high light transmittance performance, with a light transmittance of over 98%, excellent mechanical strength, outstanding atmospheric resistance, can be used for a long time in the environment of -30°C - 250°C, extremely low volatile content and impurity content, with an impurity content less than 50 ppm, good film-forming property, moderate flexibility, and is corrosion-resistant and resistant to ultraviolet radiation. It is generally applied in: 1. Reinforcing materials: high-transparency silicone gel and liquid silicone rubber, heat-vulcanized silicone rubber masterbatch, reinforcing materials for shell-less potting adhesives of semiconductor components. After reinforcement, the silicone rubber is colorless and transparent with high mechanical strength. 2. Adhesion promoter: suitable as a tackifier when bonding and compounding inorganic materials - organic materials. 3. Additive auxiliaries: such as formulating release agents, defoamers, anti-sticking agents, brighteners, and peeling force regulators for addition-type anti-sticking agents, and can also be used for wear-resistant and polishing treatment of marble and floor tiles. 4. Surface treatment agents: such as used for the bonding surfaces of organosilicon pressure-sensitive adhesives, mobile phone buttons, and epoxy adhesives.

[0003] During the processing of methyl MQ (silicone) resin, it is necessary to detect the anti-deformation degree of methyl MQ (silicone) resin at high temperature, and a detection device is required for operation during detection. For example, a smart resin sand high-temperature performance tester capable of precisely controlling the detection temperature disclosed in Chinese Patent No. CN211014078U includes a detection box. A detection seat is welded at the center of the bottom of the inner cavity of the detection box. A placement plate is placed at the center of the top of the detection seat. The inner cavity of the placement plate contains resin sand. The left side of the front of the detection box is hinged with a box door through two hinges. A lock is embedded at the center of the right side of the front of the box door. The bottom of the left side of the front of the box door is fixedly connected with a control box. Support legs are welded around the bottom of the detection box, and a cross plate is horizontally welded at the bottom inside the support legs. A heating mechanism is arranged in the inner cavity of the detection box, a refrigeration mechanism is arranged in the inner cavity of the detection box, and a control mechanism is arranged in both the control box and the inner cavity of the detection box.

[0004] This application also aims to provide a technical solution that can be used to solve the current problems in detecting the high-temperature state of methyl MQ silicone resin. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a high-temperature state testing system and testing method for methyl MQ silicone resin. To solve the above-mentioned technical problems, the present invention provides the following technical solutions:

[0006] The present invention provides a high-temperature state testing system for methyl MQ silicone resin, including a base. A boss is provided on the top of the base, and a sunken placement cavity is provided on the top of the boss. An extrusion unit is provided above the boss, and a heat conduction unit is provided on the outer wall of the boss. A floating column is vertically penetrated through the base, and a top rod is coaxially connected to the upper end of the floating column. A floating sleeve is vertically penetrated through the boss, and a jack for the telescopic insertion of the top rod is provided at the lower end of the floating sleeve. A detection unit is provided in the jack, and the floating column is driven by a lifting unit to move vertically.

[0007] In the high-temperature state testing system for methyl MQ silicone resin as described above, the extrusion unit includes a top plate provided above the base through a plurality of columns. A cylinder is vertically installed on the top plate, and an extrusion block is connected to the cylinder rod of the cylinder. The extrusion block can be clamped into the placement cavity.

[0008] In the high-temperature state testing system for methyl MQ silicone resin as described above, the heat conduction unit includes a storage bin provided on the outer wall of the boss. A pipe interface is provided at one end of the storage bin away from the boss, and a communication hole communicating with the pipe interface is provided on the end face of the storage bin. A heat conduction plate is embedded on the inner wall of the placement cavity, and a heat conduction rod is horizontally fixed on the heat conduction plate. The end of the heat conduction rod away from the heat conduction plate extends into the storage bin.

[0009] In the high-temperature state testing system for methyl MQ silicone resin as described above, a sealing sleeve is slidably sleeved on the heat conduction rod. The outer diameter of the sealing sleeve is larger than the aperture of the communication hole. A first spring is wound around the heat conduction rod. The first spring elastically abuts against the sealing sleeve and drives the sealing sleeve to move towards the pipe interface.

[0010] In the high-temperature state testing system for methyl MQ silicone resin as described above, the lifting unit includes a rotating shaft horizontally rotatably connected to the base. A cam is sleeved on the rotating shaft. A limit ring is sleeved on the floating column. A sliding cavity for the free up-and-down movement of the limit ring to pass through is provided on the base. A second spring is provided in the sliding cavity. The second spring elastically abuts against the limit ring and drives the floating column to move downward. The outer periphery of the cam is in contact connection with the bottom of the floating column. The rotating shaft is driven to rotate by a rotating structure.

[0011] In the high-temperature state testing system for methyl MQ silicone resin as described above, a ball is rotatably embedded at the bottom of the floating column, and the ball is in rolling connection with the outer periphery of the cam.

[0012] In a methyl MQ silicone resin high-temperature state testing system as described above, the rotating structure includes a movable hinge seat pivotally connected to the base. An electric push rod is installed on the movable hinge seat. A movable block is connected to the telescopic rod of the electric push rod. One end of the rotating shaft passes through the base and is fixedly connected to a swing arm, and the swing arm is pivotally connected to the movable block.

[0013] In a methyl MQ silicone resin high-temperature state testing system as described above, the detection unit includes a pressure sensor disposed in the jack. A pressing block is also disposed in the jack. The pressing block is located between the pressure sensor and the ejector rod. A third spring is further disposed between the ejector rod and the pressing block, and the two ends of the elastic force direction of the third spring elastically abut against the pressing block and the end face of the ejector rod respectively.

[0014] In a methyl MQ silicone resin high-temperature state testing system as described above, a locking pin is inserted through the upper end of the ejector rod. A kidney-shaped hole for inserting the locking pin is formed on the outer wall of the floating sleeve, and the locking pin can freely slide in the kidney-shaped hole.

[0015] A method for testing the high-temperature state of methyl MQ silicone resin includes the extrusion unit applying extrusion to the methyl MQ silicone resin in the placement cavity so that the shape of the methyl MQ silicone resin can be fixed. Then, by setting the heat conduction unit, a heating effect can be generated on the methyl MQ silicone resin in the placement cavity to soften the methyl MQ silicone resin. Then, the lifting unit is used to drive the floating column to move upward. During the upward movement of the floating column, the floating sleeve will be pushed by the ejector rod, and then the floating sleeve will be pressed against the surface of the methyl MQ silicone resin. Then, the detection unit is used to detect the upward movement stroke of the floating sleeve, and thus the displacement data of the floating sleeve can be detected. The anti-deformation degree of the methyl MQ silicone resin can be reflected through the displacement data.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By squeezing the methyl MQ silicone resin in the placement cavity through the squeezing unit, the shape of the methyl MQ silicone resin can be fixed, reducing the influence on the detection error. By setting the heat conduction unit, a heating effect can be generated on the methyl MQ silicone resin in the placement cavity, softening the methyl MQ silicone resin. Then, the lifting unit is used to drive the floating column to move upward. During the upward movement of the floating column, the floating sleeve is pushed by the ejector rod, so that the floating sleeve presses against the surface of the methyl MQ silicone resin. Then, the detection unit is used to detect the upward movement stroke of the floating sleeve, and thus the displacement data of the floating sleeve can be detected. The anti-deformation degree of the methyl MQ silicone resin can be reflected through the displacement data. By setting the rotation of the rotating shaft, after the cam rotates 90 degrees, an upward acting force can be generated on the floating column, thereby driving the floating column to move upward. When the floating column moves upward, it can drive the ejector rod to move upward, and thus drive the floating sleeve to move upward. The upward movement of the floating sleeve can squeeze the methyl MQ silicone resin. The structure is simple and the operation is convenient. In addition, by setting the rotating structure composed of an electric push rod, a movable hinge seat, a movable block, and a swing arm, the telescopic rod of the electric push rod expands and contracts, driving the movable block to move reciprocally and driving the swing arm to rotate. Since the angular stroke after the swing of the swing arm can only be less than or equal to 90 degrees, it is convenient to control the rotation angle of the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0018] Figure 1 is a schematic assembly structure diagram of the present invention;

[0019] Figure 2 is Figure 1 a partial cross-sectional view of the structure in

[0020] Figure 3 is a schematic structure diagram of the detection unit in the present invention;

[0021] Figure 4 is Figure 3 a partial cross-sectional view of the structure in

[0022] In the figure: 1 - base, 2 - pipe interface, 3 - storage bin, 4 - boss, 5 - extrusion block, 6 - cylinder, 7 - top plate, 8 - movable hinge seat, 9 - electric push rod, 10 - movable block, 11 - swing arm, 12 - heat conducting plate, 13 - heat conducting rod, 14 - first spring, 15 - sealing sleeve, 16 - floating column, 17 - cam, 18 - rotating shaft, 19 - ball, 20 - limiting ring, 21 - ejector rod, 22 - locking pin, 23 - kidney-shaped hole, 24 - floating sleeve, 25 - third spring, 26 - second spring, 27 - pressing block, 28 - pressure sensor. Detailed implementation manners

[0023] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] Embodiment

[0025] As Figures 1-4 shown, this embodiment provides a technical solution: a high-temperature state testing system for methyl MQ silicone resin, including a base 1. A boss 4 is provided on the top of the base 1. A recessed placement cavity is provided on the top of the boss 4. An extrusion unit is provided above the boss 4. A heat conduction unit is provided on the outer wall of the boss 4. A floating column 16 is vertically penetrated through the base 1. The upper end of the floating column 16 is coaxially connected with a top rod 21. A floating sleeve 24 is vertically penetrated through the boss 4. A jack for the telescopic insertion of the top rod 21 is provided at the lower end of the floating sleeve 24. A detection unit is provided in the jack. The floating column 16 is driven by a lifting unit to move vertically. By the extrusion unit, extrusion is generated on the methyl MQ silicone resin in the placement cavity, so that the shape of the methyl MQ silicone resin can be fixed, reducing the influence on the detection error. By setting the heat conduction unit, a heating effect can be generated on the methyl MQ silicone resin in the placement cavity, making the methyl MQ silicone resin soften. Then, the lifting unit is used to drive the floating column to move upward. During the upward movement of the floating column, the floating sleeve will be pushed by the top rod, and then the floating sleeve will be pressed against the surface of the methyl MQ silicone resin. Then, the detection unit is used to detect the upward movement stroke of the floating sleeve, and thus the displacement data of the floating sleeve can be detected. The anti-deformation degree of the methyl MQ silicone resin can be reflected through the displacement data.

[0026] Specifically, the extrusion unit includes a top plate 7 provided above the base 1 through a plurality of columns. A cylinder 6 is vertically installed on the top plate 7. An extrusion block 5 is connected to the cylinder rod of the cylinder 6. The extrusion block 5 can be engaged into the placement cavity. By the telescopic movement of the cylinder rod of the cylinder, the extrusion block can be driven to move downward, so that an extrusion effect can be generated on the methyl MQ silicone resin placed in the placement cavity, and the shape of the methyl MQ silicone resin can be fixed, reducing the error influence during detection.

[0027] Specifically, the heat transfer unit includes a storage bin 3 arranged on the outer wall of the boss 4, the storage bin 3 is provided with a pipe interface 2 at one end away from the boss 4, a connecting hole that is connected to the pipe interface 2 is opened on the end surface of the storage bin 3, a heat transfer plate 12 is embedded on the inner wall of the placement cavity, a heat transfer rod 13 is horizontally fixed on the heat transfer plate 12, and the heat transfer rod 13 extends into the storage bin 3 at one end away from the heat transfer plate 12, and an external heat transfer oil delivery device delivers high-temperature heat transfer oil to the pipe interface, and then delivers it from the pipe interface to the storage bin, thereby generating a heating effect on the heat transfer rod, and the heat on the heat transfer rod will be transferred to the heat transfer plate, so that the heat transfer plate has a certain effect on the placement cavity. The methyl MQ silicone resin inside produces a heating effect, has a simple structure, and avoids causing the methyl MQ silicone resin to be affected by a large amount of heat. Furthermore, a sealing sleeve 15 is slidably sleeved on the heat-conducting rod 13, and the outer diameter of the sealing sleeve 15 is larger than the aperture of the connecting hole. A first spring 14 is sleeved on the heat-conducting rod 13, and the first spring 14 elastically presses against the sealing sleeve 15 and drives the sealing sleeve 15 to move toward the pipe interface 2. When the external conveying equipment stops conveying the heat-conducting oil, the first spring will produce an elastic pressing force on the sealing sleeve, so that the sealing sleeve moves toward the pipe interface, and can press against the inner wall of the storage bin, and can close the connecting hole.

[0028] Specifically, the lifting unit includes a rotating shaft 18 horizontally rotatably connected to the base 1, a cam 17 is mounted on the rotating shaft 18, a limit ring 20 is mounted on the floating column 16, a sliding cavity is opened on the base 1 for the limit ring 20 to move up and down and pass freely, a second spring 26 is arranged in the sliding cavity, the second spring 26 elastically presses against the limit ring 20 and drives the floating column 16 to move downward, the outer periphery of the cam 17 is in contact with the bottom of the floating column 16, the rotating shaft 18 is driven to rotate by the rotating structure, and the rotation of the rotating shaft drives the cam to rotate. When the cam rotates, it will generate a resisting force on the floating column, thereby driving the floating column to move upward, so that the top rod on the floating column drives the floating sleeve to move upward, and further, the bottom of the floating column 16 is rotatably embedded with a ball 19, and the ball 19 is rollingly connected on the outer periphery of the cam 17, thereby reducing the wear on the floating column.

[0029] Specifically, the rotating structure includes a movable hinge seat 8 pivotally connected to the base 1, an electric push rod 9 is installed on the movable hinge seat 8, a movable block 10 is connected to the telescopic rod of the electric push rod 9, one end of the rotating shaft 18 passes through the base 1 and is fixedly connected to a swing arm 11, the swing arm 11 is pivotally connected to the movable block 10, and the telescopic rod of the electric push rod is extended and retracted, and the movable block is driven to move, so that the swing arm swings, thereby driving the rotating shaft to rotate.

[0030] Specifically, the detection unit includes a pressure sensor 28 disposed in the jack. A pressing block 27 is also disposed in the jack. The pressing block 27 is located between the pressure sensor 28 and the ejector rod 21. A third spring 25 is further disposed between the ejector rod 21 and the pressing block 27. The two ends of the elastic force direction of the third spring 25 elastically abut against the pressing block 27 and the end face of the ejector rod 21 respectively. When the ejector rod moves upward, it will compress the third spring and generate a pressing force on the pressing block through the third spring, so as to generate an extrusion force on the pressure sensor. Therefore, the pressure sensor can detect the acting force on the floating sleeve when the ejector rod moves upward. And the floating sleeve is subjected to the acting force of methyl MQ silicone resin. Therefore, by collecting the magnitude of the data fed back by the pressure sensor, the deformation degree of methyl MQ silicone resin can be further determined. Further, a locking pin 22 is inserted through the upper end of the ejector rod 21. A kidney-shaped hole 23 for the locking pin 22 to be inserted and engaged is formed on the outer wall of the floating sleeve 24. The locking pin 22 can freely slide in the kidney-shaped hole 23 to prevent the ejector rod from falling off the floating sleeve.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-temperature state testing system for methyl MQ silicone resin, comprising a base (1), characterized in that, A boss (4) is provided on the top of the base (1). A sunken placement cavity is provided on the top of the boss (4). An extrusion unit is provided above the boss (4). A heat conduction unit is provided on the outer wall of the boss (4). A floating column (16) is vertically penetrated through the base (1). The upper end of the floating column (16) is coaxially connected with a push rod (21). A floating sleeve (24) is vertically penetrated through the boss (4). A jack for the telescopic insertion of the push rod (21) is provided at the lower end of the floating sleeve (24). A detection unit is provided in the jack. The floating column (16) is driven by a lifting unit to move vertically. The lifting unit includes a rotating shaft (18) horizontally and rotatably connected to the base (1). A cam (17) is sleeved on the rotating shaft (18). A limiting ring (20) is sleeved on the floating column (16). A sliding cavity for the free up and down movement of the limiting ring (20) to pass through is provided on the base (1). A second spring (26) is provided in the sliding cavity. The second spring (26) elastically abuts against the limiting ring (20) and drives the floating column (16) to move downward. The outer peripheral edge of the cam (17) is in contact connection with the bottom of the floating column (16). The rotating shaft (18) is driven to rotate by a rotating structure. A ball (19) is rotatably embedded at the bottom of the floating column (16). The ball (19) is in rolling connection with the outer peripheral edge of the cam (17). The rotating structure includes a movable hinge seat (8) pivotally connected to the base (1). An electric push rod (9) is installed on the movable hinge seat (8). A movable block (10) is connected to the telescopic rod of the electric push rod (9). One end of the rotating shaft (18) passes through the base (1) and is fixedly connected with a swing arm (11). The swing arm (11) is pivotally connected to the movable block (10). The detection unit includes a pressure sensor (28) provided in the jack. A pressure block (27) is also provided in the jack. The pressure block (27) is located between the pressure sensor (28) and the push rod (21). A third spring (25) is further provided between the push rod (21) and the pressure block (27). The two ends of the elastic force direction of the third spring (25) elastically abut against the pressure block (27) and the end face of the push rod (21) respectively. A locking pin (22) is penetrated through the upper end of the push rod (21). A kidney-shaped hole (23) for the insertion of the locking pin (22) is provided on the outer wall of the floating sleeve (24). The locking pin (22) can freely slide in the kidney-shaped hole (23).

2. The high-temperature state test system for a methyl MQ silicone resin according to claim 1, characterized in that The extrusion unit includes a top plate (7) provided above the base (1) through a plurality of columns. A cylinder (6) is vertically installed on the top plate (7). An extrusion block (5) is connected to the cylinder rod of the cylinder (6). The extrusion block (5) can be clamped into the placement cavity.

3. A high-temperature state test system for a methyl MQ silicone resin as described in claim 1, characterized in that, The heat conduction unit includes a storage bin (3) provided on the outer wall of the boss (4). One end of the storage bin (3) away from the boss (4) is provided with a pipe interface (2). A communication hole communicating with the pipe interface (2) is formed on the end face of the storage bin (3). A heat conduction plate (12) is embedded on the inner wall of the placement cavity. A heat conduction rod (13) is horizontally and fixedly connected to the heat conduction plate (12). One end of the heat conduction rod (13) away from the heat conduction plate (12) extends into the storage bin (3).

4. The high-temperature state test system for a methyl MQ silicone resin according to claim 3, wherein, A sealing sleeve (15) is slidably sleeved on the heat conduction rod (13). The outer diameter of the sealing sleeve (15) is larger than the aperture of the communication hole. A first spring (14) is wound around the heat conduction rod (13). The first spring (14) elastically abuts against the sealing sleeve (15) and drives the sealing sleeve (15) to move towards the pipe interface (2).

5. The testing method of a high-temperature state testing system for methyl MQ silicone resin as described in claim 1, characterized in that, It includes that the extrusion unit extrudes the methyl MQ silicone resin in the placement cavity so that the shape of the methyl MQ silicone resin can be fixed. Then, the heat conduction unit generates a heating effect on the methyl MQ silicone resin in the placement cavity to soften the methyl MQ silicone resin. Then, the lifting unit drives the floating column (16) to move upward. During the upward movement of the floating column (16), the floating sleeve (24) will be pushed by the ejector rod (21). When the ejector rod (21) moves upward, it will compress the third spring (25) and generate a pushing force on the pressure block (27) through the third spring (25) to generate an extrusion force on the pressure sensor (28). Therefore, the pressure sensor (28) can detect the acting force of the ejector rod (21) on the floating sleeve (24) when it moves upward. And the floating sleeve (24) is acted on by the methyl MQ silicone resin. Therefore, by collecting the magnitude of the data fed back by the pressure sensor (28), the deformation degree of the methyl MQ silicone resin can be determined.

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