A test device for the extrudability of silicone and modified silicone sealants

Abstract

This utility model discloses a silicone and modified silicone sealant extrudability testing device, including a base and a rotating indexing table movably mounted on the base. An extrusion mechanism is provided on the left side of the base. The rotating indexing table has several evenly spaced circular holes, and a clamping mechanism corresponding to each circular hole is provided on the rotating indexing table. An automatic weighing machine is located on the bottom left side of the rotating indexing table, and the automatic weighing machine is equipped with a material dispensing mechanism. The beneficial effects of this utility model are that the sealant tubes use the same extrusion nozzle diameter. When the rotating indexing table rotates, the clamping mechanism can clamp the sealant tubes, enabling continuous extrudability testing of the sealant tubes in conjunction with the extrusion mechanism. The automatic weighing machine can automatically weigh the extruded sealant to determine its extrusion performance, effectively improving the efficiency of sealant extrudability testing.

Description

Technical Field

[0001] This utility model relates to the field of extrudability testing technology, specifically to a silicone and modified silicone sealant extrudability testing device. Background Technology

[0002] Silicone building sealants: One-component and multi-component sealants that cure at room temperature, with polysiloxane as the main component. Modified silicone building sealants: One-component and multi-component sealants that cure at room temperature, with silane-terminated polyether as the main component. Used for structural assemblies of glass, metal, stone, and ceramic tile curtain walls, they are a common choice for curtain wall structural adhesives. Extrudability testing of silicone and modified silicone sealants is one of the important methods for evaluating the application performance of sealants, as it directly affects the quality and service life of the sealant.

[0003] Existing sealant extrudability tests typically employ pneumatic or hydraulic equipment to apply pressure to the sealant, using pressure gauges or force meters to measure parameters such as extrusion force and length, thereby determining its extrudability. However, the testing process requires manual testing of each bottled sealant individually, resulting in low efficiency. Furthermore, the cumbersome process of manually changing bottles of sealant further impacts testing efficiency. Utility Model Content

[0004] To address the above deficiencies, this invention provides a silicone and modified silicone sealant extrusion testing device to solve the problem of sealant extrusion testing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A silicone and modified silicone sealant extrudability testing device includes a base and a rotary indexing table movably mounted on the base, wherein an extrusion mechanism is provided on the left side of the base;

[0007] The extrusion mechanism includes a housing, a mounting plate, a servo cylinder, a push block, and a pressure sensor. The housing is mounted on the left side of the base, the mounting plate is mounted on the upper end of the housing, the servo cylinder is mounted on the mounting plate with its telescopic end facing vertically downward, the push block is mounted on the telescopic end of the servo cylinder, and the pressure sensor is mounted on the bottom of the push block.

[0008] The rotating indexing table has a number of circular holes evenly spaced, and the rotating indexing table is provided with clamping mechanisms corresponding to the number of circular holes.

[0009] An automatic weighing machine for the production line is installed on the bottom left side of the rotary indexing table, and the automatic weighing machine for the production line is equipped with a material dispensing mechanism.

[0010] Furthermore, the clamping mechanism includes a fixed rod, a guide plate, several sets of fixed slide rails, several fixed clamping seats, several sliding clamping seats, and several connecting rods. The fixed rod is inserted into the upper end of the rotary indexing table, the guide plate is installed on the upper end of the fixed rod, the several sets of fixed slide rails are evenly installed on the rotary indexing table, the several fixed clamping seats are fixedly installed in the front end of the several sets of fixed slide rails, the several sliding clamping seats are slidably installed in the rear end of the several sets of fixed slide rails, and the several connecting rods are installed in the rear end of the several sliding clamping seats. The clamping mechanism is used to clamp and fix the sealing rubber cylinder to prevent it from tipping over during extrusion.

[0011] Furthermore, a guide groove is provided at the bottom of the guide plate, and the rear ends of several connecting rods are slidably installed in the guide groove via sliders to play a guiding role.

[0012] Furthermore, the material distribution mechanism includes a set of synchronous cylinders, a set of three-jaw material distribution plates, and several bearing discs. The set of synchronous cylinders is hinged to both sides of the rear end of the automatic weighing machine on the production line, and the set of three-jaw material distribution plates is hinged to both sides of the automatic weighing machine on the production line, with their rear ends respectively hinged to the telescopic ends of the corresponding synchronous cylinders. Several bearing discs are evenly placed on the automatic weighing machine on the production line. The material distribution mechanism can distribute materials to several bearing discs on the automatic weighing machine on the production line, making it convenient to weigh them sequentially.

[0013] Furthermore, the automated weighing machine on the production line includes a set of conveyor belts and an automated weighing conveyor belt, which facilitates the conveying and weighing of the carrying disc.

[0014] Furthermore, a stepper motor for driving the rotary indexing table to rotate is horizontally mounted on the base.

[0015] Furthermore, a pressure gauge is installed at the front end of the mounting plate. The pressure gauge is electrically connected to a pressure sensor and is used to display the pressure value of the push block.

[0016] This invention provides a silicone and modified silicone sealant extrudability testing device, which has the following advantages: the sealant tubes to be tested are respectively inserted into a rotating indexing table, and the sealant tubes use the same extrusion nozzle diameter. When the rotating indexing table rotates, the clamping mechanism can clamp the sealant tubes. In conjunction with the extrusion mechanism, continuous extrudability testing of the sealant tubes can be realized. A fixed pressure and the same time are used for each tube. An automatic weighing machine on the production line can automatically weigh the extruded sealant to determine the extrusion performance, and effectively improve the efficiency of sealant extrudability testing. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a silicone and modified silicone sealant extrudability testing device according to the present invention.

[0018] Figure 2 This is a top view of the rotary indexing table described in this utility model.

[0019] Figure 3 This is a bottom view of the guide disc described in this utility model.

[0020] Figure 4 This is a top view of the automatic weighing machine for the production line described in this utility model.

[0021] In the diagram: 1. Base; 2. Rotary indexing table; 3. Housing; 4. Mounting plate; 5. Servo cylinder; 6. Push block; 7. Pressure sensor; 8. Circular hole; 9. Automatic weighing machine for production line; 10. Fixed rod; 11. Guide plate; 12. Fixed slide rail; 13. Fixed clamping seat; 14. Sliding clamping seat; 15. Connecting rod; 16. Guide groove; 17. Slider; 18. Synchronous cylinder; 19. Three-jaw separating plate; 20. Bearing disc; 21. Stepper motor; 22. Pressure gauge. Detailed Implementation

[0022] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0023] Please see Figures 1 to 4 As shown in the embodiment of this application, an extrudability testing device for silicone and modified silicone sealant is provided, including a base 1 and a rotary indexing table 2 movably mounted on the base 1. An extrusion mechanism is provided on the left side of the base 1. The extrusion mechanism includes a housing 3, a mounting plate 4, a servo cylinder 5, a push block 6, and a pressure sensor 7. The housing 3 is mounted on the left side of the base 1, the mounting plate 4 is mounted on the upper end of the housing 3, the servo cylinder 5 is mounted on the mounting plate 4 with its telescopic end facing vertically downward, the push block 6 is mounted on the telescopic end of the servo cylinder 5, and the pressure sensor 7 is mounted on the bottom of the push block 6. A plurality of circular holes 8 are evenly opened on the rotary indexing table 2, and a clamping mechanism corresponding to the plurality of circular holes 8 is provided on the rotary indexing table 2. An automatic weighing machine 9 is provided on the bottom left side of the rotary indexing table 2, and a material dispensing mechanism is provided on the automatic weighing machine 9.

[0024] In this embodiment, during use, the user inserts the sealant tubes to be tested into several circular holes 8 on the rotary indexing table 2. The sealant tubes have a certain friction with the circular holes 8 to prevent them from falling off when the rotary indexing table 2 rotates. The bottom of the sealant tubes uses the same extrusion nozzle diameter. The sealant tubes are filled with silicone or modified silicone sealant. When the rotary indexing table 2 rotates, the clamping mechanism can clamp the sealant tubes. When the sealant tubes rotate to the bottom of the push block 6, the extension end of the servo cylinder 5 extends, and the sealant in the sealant tubes is extruded through the push block 6. The pressure sensor 7 is used to detect the pressure of the push block 6. During extrusion, a fixed pressure and the same time are used. The automatic weighing machine 9 on the production line can automatically weigh the extruded sealant to judge the extrusion performance. In conjunction with the rotary indexing table 2, the efficiency of sealant extrusion performance testing is effectively improved.

[0025] In some embodiments, the clamping mechanism includes a fixed rod 10, a guide plate 11, several sets of fixed slide rails 12, several fixed clamping seats 13, several sliding clamping seats 14, and several connecting rods 15. The fixed rod 10 is inserted into the upper end of the rotary indexing table 2. When the rotary indexing table 2 rotates, the fixed rod 10 does not rotate. The guide plate 11 is installed on the upper end of the fixed rod 10. Several sets of fixed slide rails 12 are evenly installed on the rotary indexing table 2. Several fixed clamping seats 13 are fixedly installed in the front end of several sets of fixed slide rails 12. Several sliding clamping seats 14 are slidably installed in the rear end of several sets of fixed slide rails 12. Several connecting rods 15 are installed in the rear end of several sliding clamping seats 14. A guide groove 16 is opened in the bottom of the guide plate 11. The rear ends of several connecting rods 15 are slidably installed in the guide groove 16 through sliders 17.

[0026] and in conjunction with the appendix Figure 2 and attached Figure 3 As shown, when the rotary indexing table 2 rotates, it drives several fixed clamping seats 13 and several sliding clamping seats 14 to rotate synchronously. The sliding clamping seats 14 are displaced through the connecting rod 15 and the slider 17. The sliding clamping seats 14, together with the fixed clamping seats 13, can clamp and fix the sealing rubber cylinder to prevent it from tipping over during extrusion.

[0027] In some embodiments, the material distribution mechanism includes a set of synchronous cylinders 18, a set of three-jaw material distribution plates 19, and a plurality of bearing discs 20. The set of synchronous cylinders 18 is hinged to both sides of the rear end of the automatic weighing machine 9, the set of three-jaw material distribution plates 19 is hinged to both sides of the automatic weighing machine 9, and the rear ends are respectively hinged to the extension ends of the corresponding synchronous cylinders 18. The plurality of bearing discs 20 are evenly placed on the automatic weighing machine 9.

[0028] Combined with appendix Figure 4As shown, a set of synchronous cylinders 18 retracts, causing a set of three-jaw separating plates 19 to deflect relatively. In conjunction with the automatic weighing machine 9 on the production line, it can automatically separate several bearing discs 20. Then, the telescopic ends of a set of synchronous cylinders 18 extend, causing a set of three-jaw separating plates 19 to reset and limit the rear bearing disc 20. The bearing disc 20 is used to receive the extruded sealant in sequence and weigh it to determine its extrudability.

[0029] In some embodiments, the automated weighing machine 9 on the production line includes a set of conveyor belts and an automated weighing conveyor belt to facilitate the conveying and weighing of the carrier disc 20.

[0030] In some embodiments, a stepper motor 21 for driving the rotary indexing table 2 to rotate is horizontally mounted on the base 1.

[0031] In some embodiments, a pressure gauge 22 is mounted on the front end of the mounting plate 4. The pressure gauge 22 is electrically connected to the pressure sensor 7 and is used to display the pressure value of the push block 6.

[0032] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A silicone and modified silicone sealant extrudability testing device comprising a base (1) and a rotary indexing table (2) movably mounted on the base (1), characterized in that, An extrusion mechanism is provided on the left side of the base (1); The extrusion mechanism includes a housing (3), a mounting plate (4), a servo cylinder (5), a push block (6), and a pressure sensor (7). The housing (3) is mounted on the left side of the base (1), the mounting plate (4) is mounted on the upper end of the housing (3), the servo cylinder (5) is mounted on the mounting plate (4) with its telescopic end facing vertically downward, the push block (6) is mounted on the telescopic end of the servo cylinder (5), and the pressure sensor (7) is mounted on the bottom of the push block (6). The rotary indexing table (2) has a number of circular holes (8) evenly distributed on it, and the rotary indexing table (2) is provided with a clamping mechanism corresponding to the number of circular holes (8); The rotary indexing table (2) is equipped with an automatic weighing machine (9) on the bottom left side, and the automatic weighing machine (9) is equipped with a material distribution mechanism.

2. A device for testing the extrudability of silicone and modified silicone sealants according to claim 1, characterized in that The clamping mechanism includes a fixed rod (10), a guide plate (11), several sets of fixed slide rails (12), several fixed clamping seats (13), several sliding clamping seats (14), and several connecting rods (15). The fixed rod (10) is inserted into the upper end of the rotary indexing table (2). The guide plate (11) is installed on the upper end of the fixed rod (10). Several sets of fixed slide rails (12) are evenly installed on the rotary indexing table (2). Several fixed clamping seats (13) are fixedly installed in the front end of several sets of fixed slide rails (12). Several sliding clamping seats (14) are slidably installed in the rear end of several sets of fixed slide rails (12). Several connecting rods (15) are installed in the rear end of several sliding clamping seats (14).

3. A device for testing the extrudability of silicone and modified silicone sealants according to claim 2, characterized in that The bottom of the guide plate (11) has a guide groove (16), and the rear ends of several connecting rods (15) are slidably installed in the guide groove (16) by sliders (17).

4. The device for testing the extrudability of silicone and modified silicone sealants according to claim 1, wherein The material distribution mechanism includes a set of synchronous cylinders (18), a set of three-jaw material distribution plates (19), and several bearing discs (20). The set of synchronous cylinders (18) is hinged to both sides of the rear end of the automatic weighing machine (9) on the production line. The set of three-jaw material distribution plates (19) is hinged to both sides of the automatic weighing machine (9) on the production line, and the rear ends are respectively hinged to the extension ends of the corresponding synchronous cylinders (18). Several bearing discs (20) are evenly placed on the automatic weighing machine (9) on the production line.

5. The device for testing the extrudability of silicone and modified silicone sealants according to claim 1, wherein The automated weighing machine (9) on the production line includes a set of conveyor belts and an automated weighing conveyor belt.

6. The device for testing the extrudability of silicone and modified silicone sealants according to claim 1, wherein A stepper motor (21) for driving the rotating indexing table (2) to rotate is horizontally mounted on the base (1).

7. The device for testing the extrudability of silicone and modified silicone sealants according to claim 1, wherein A pressure gauge (22) is installed on the front end of the mounting plate (4).

Images