A device for testing the extrudability of epoxy adhesives

Abstract

The present invention discloses a device for testing the extrudability of epoxy adhesives, belonging to the technical field of extrudability testing. The device includes a filling station, a lifting station, and an extrusion station, which are sequentially arranged. The filling station is provided with a filling assembly. When an annular mold is located at the filling station, the filling assembly is used to spirally fill the annular mold with splicing adhesive in layers. When the annular mold is located at the lifting station, the annular mold is lifted along a second direction to obtain a cylindrical sample to be tested. When the cylindrical sample to be tested is located at the extrusion station, pressure is applied to the cylindrical sample to be tested by the extrusion assembly to obtain a circular sample. The circular sample is measured and calculated to obtain the extrudability of the splicing adhesive. The present invention uses spiral filling of the splicing adhesive to uniformly fill the splicing adhesive and reduce the generation of bubbles. By filling the splicing adhesive in layers, the mixing of bubbles can be significantly reduced and the interlayer bonding quality can be improved, thereby accurately controlling the filling amount and ensuring the accuracy of the test results.

Description

Technical Field

[0001] The invention belongs to the technical field of extrudability testing, and in particular relates to a testing device for the extrudability of an epoxy adhesive. Background Art

[0002] Epoxy adhesive for prefabricated segment assembly (hereinafter referred to as splicing glue) is a high-performance engineering material widely used in prefabricated concrete segment assembly projects such as bridges and wind turbine towers. During engineering applications, workers often use manual application to apply this material to the concrete end faces to be assembled, and then apply prestress to the concrete segments. This process requires that the applied splicing glue overflows from all sides of the concrete end face after being squeezed by external force to ensure that the concrete end face is evenly covered with the splicing glue, ultimately ensuring the mechanical properties of the splicing. However, when the extrudability is too large, the splicing glue may overflow from all sides of the concrete end face, but it is also easy to cause material waste. Therefore, the extrudability of this material is of great practical significance in guiding the research and development of production enterprises and actual engineering construction.

[0003] At present, when using existing technologies in actual operations, it is found that high-viscosity adhesives will inevitably be mixed with bubbles during the filling process, resulting in a low actual sampling volume and ultimately a low test result.

[0004] Therefore, it is urgent to design a test device for the extrudability of epoxy adhesives to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a testing device for the extrudability of epoxy adhesives, which has the advantages of reducing or eliminating the introduction of bubbles during the filling process, thereby solving the problem of low test results due to the presence of bubbles.

[0006] To achieve the above-mentioned purpose, the specific technical solution of the test device for the extrudability of epoxy adhesives of the present invention is as follows:

[0007] A device for testing the extrudability of epoxy adhesives, comprising an annular mold and two polyester films, wherein the annular mold is filled with splicing adhesive and the two polyester films are used to cover the splicing adhesive sample;

[0008] It also includes a filling station, a lifting station and an extrusion station arranged in sequence along the first direction;

[0009] The filling station is equipped with a filling component. When the annular mold is located at the filling station, the annular mold is placed on a polyester film, and the splicing glue is spirally filled into the annular mold through the filling component.

[0010] When the annular mold is located at the lifting station, the annular mold is lifted along the second direction until the annular mold is completely separated from the splicing adhesive sample to obtain a cylindrical sample to be tested;

[0011] When the cylindrical sample is located at the extrusion station, another polyester film is placed on the top surface of the cylindrical sample. Then, pressure is applied to the cylindrical sample through the extrusion assembly to obtain a round cake sample. The round cake sample is measured and calculated to obtain the extrudability of the splicing adhesive.

[0012] Furthermore, a vibration table is provided on the filling station. When the annular mold is located at the filling station, the polyester film is located on the vibration table. When each layer of splicing glue is filled, the vibration table is turned off. When each layer of splicing glue is filled and the filling component is reset, the vibration table is started.

[0013] Furthermore, a connecting plate is provided on the filling station, and a spiral groove is provided on the connecting plate. The filling component is inserted in the spiral groove and can slide along the spiral groove. The spiral groove is provided with a first end and a second end. When the filling component slides from the first end to the second end, the filling component fills the splicing glue into the annular mold. When the filling component slides from the second end to the first end, the filling component stops filling the splicing glue into the annular mold, and at the same time, the filling component slides toward the end away from the annular mold, so that when each layer of splicing glue is filled, the distance between the filling component and the polyester film at the lower end of the annular mold or the filled splicing glue is the first distance.

[0014] Furthermore, the filling component is divided into three layers of splicing glue. When the filling component is filled with the first layer of splicing glue, the distance between the filling component and the polyester film at the lower end of the annular mold is the first distance. When the filling component is filled with the second and third layers of splicing glue, the distance between the filling component and the filled splicing glue is the first distance.

[0015] Furthermore, three connecting grooves are opened in the spiral groove, and adjacent connecting grooves are connected end to end. The connecting grooves include a straight section and an inclined section. The filling component is slidably connected to the connecting groove. When the filling component is slidably connected to the straight section, the filling component slides from the first end to the second end. When the filling component is slidably connected to the inclined section, the filling component slides from the second end to the first end. Each straight section is lower than the inclined section connected to its lower end, and each inclined section is lower than the straight section connected to its lower end.

[0016] Furthermore, the filling assembly includes a filler and a sliding rod. The filler is used to fill the annular mold with splicing glue. The filler is fixedly connected to the sliding rod. The sliding rod is slidingly connected to the spiral groove. A support rod is connected to the sliding rod. The support rod is inserted into the connecting groove and slides along it.

[0017] Furthermore, a first sliding groove is provided on the sliding rod, the first sliding groove is slidably connected to the support rod, a spring is fixedly connected in the first sliding groove, and one end of the spring away from the first sliding groove is fixedly connected to the support rod.

[0018] Furthermore, a rotating shaft is rotatably connected to the connecting disk, and the end of the rotating shaft away from the connecting disk is fixedly connected to the output end of the power source. A connecting rod is slidably connected to the rotating shaft, and a ring is fixedly connected to the connecting rod. The ring is slidably connected to the sliding rod. When the filling assembly is slidably connected to the inclined section, the sliding rod slides upward along the ring.

[0019] Furthermore, a scraping station is provided between the filling station and the lifting station. When the annular mold is located at the scraping station, the splicing glue sample on the top surface of the annular mold is scraped flat and excess splicing glue is removed.

[0020] Furthermore, it also includes a robot, which moves the splicing glue sample from the filling station to the scraping station, the lifting station and the extrusion station in sequence.

[0021] The present invention has the following advantages: by spirally filling the splicing glue into the annular mold, the splicing glue is evenly filled and the generation of bubbles is reduced. By filling the splicing glue in layers, the mixing of bubbles can be significantly reduced and the inter-layer bonding quality can be improved, thereby accurately controlling the filling amount, improving the surface quality and reducing bubble residue, thereby ensuring the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the overall structure of the testing device of the present invention;

[0023] Figure 2 This is a structural schematic diagram of the filling station of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the filling assembly and the connecting disk of the present invention;

[0025] Figure 4 This is a schematic diagram of the exploded structure of the filling component and the connecting disk of the present invention;

[0026] Figure 5 Schematic diagram of the structure of the spiral groove of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the connecting groove of the present invention;

[0028] Figure 7 This is a schematic diagram of the exploded structure of the filling assembly of the present invention;

[0029] Figure 8 This is a structural schematic diagram of the scraping station of the present invention;

[0030] Figure 9 This is a structural diagram of the lifting station of the present invention;

[0031] Figure 10 This is a schematic structural diagram of the extrusion station of the present invention;

[0032] Explanation of the marks in the figure: 1. Polyester film; 11. Ring mold; 2. Filling station; 21. Filling assembly; 211. Filler; 212. Sliding rod; 213. Support rod; 214. Ring; 215. Connecting rod; 216. Rotating shaft; 217. Rotating block; 218. Second slide groove; 219. Spring; 22. Connecting plate; 221. Spiral groove; 222. First end; 223. Second end; 224. Connecting groove; 225. Straight section; 226. Inclined section; 23. Vibrating table; 3. Glue scraping station; 31. Glue scraping assembly; 4. Lifting station; 41. Lifting assembly; 411. Slide rail; 412. Sliding block; 413. Clamping block; 414. Gear; 415. Rack; 5. Extrusion station; 51. Extrusion assembly. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] Those skilled in the art will appreciate that although some embodiments herein include certain features included in other embodiments but not other features, the combination of features from different embodiments is intended to be within the scope of the present invention and to form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0035] Please refer to the attached Figure 1 To the attached Figure 10 The present invention describes a test device for the extrudability of epoxy adhesives, comprising an annular mold 11 and two polyester films 1. The annular mold 11 is filled with splicing adhesive, and the two polyester films 1 are used to cover the splicing adhesive sample.

[0036] At present, when using existing technologies in practice, it is found that high-viscosity adhesives will inevitably introduce bubbles during the filling process, which will cause the actual sampling volume to be low, and ultimately lead to low test results.

[0037] Therefore, the test device for the extrudability of epoxy adhesive comprises a filling station 2, a scraping station 3, a lifting station 4 and an extrusion station 5 which are sequentially arranged along a first direction A;

[0038] The filling station 2 is provided with a filling component 21. When the annular mold 11 is located at the filling station 2, the annular mold 11 is placed on a polyester film 1, and the splicing glue is spirally layered into the annular mold 11 through the filling component 21; the splicing glue is spirally filled into the annular mold 11 to evenly fill the splicing glue and reduce the generation of bubbles; by filling the splicing glue in layers, the mixing of bubbles can be significantly reduced and the interlayer bonding quality can be improved.

[0039] Specifically, the surface of the annular mold 11 is pre-coated with vaseline or a low-viscosity release agent to reduce the friction between the splicing glue and the mold, so that the splicing glue can be filled smoothly, avoiding accumulation in the center and causing voids at the edge, and reducing air entrapment caused by friction and pulling. By designing the mold to be annular, the splicing glue is facilitated to flow evenly, avoiding bubble retention at the corners due to sudden shape changes. A mark is provided in the center of the polyester film 1 to fix the mold position.

[0040] Preferably, the inner diameter and height of the annular mold 11 are both 10 mm.

[0041] A vibration table 23 is provided on the filling station 2. When the annular mold 11 is located at the filling station 2, the polyester film 1 is located on the vibration table 23. When each layer of splicing glue is filled, the vibration table 23 is closed. When each layer of splicing glue is filled and the filling component 21 is reset, the vibration table 23 is started. By setting the vibration table 23 to start when each layer of splicing glue is filled and the filling component 21 is reset, high-frequency micro-amplitude vibration is applied to the mold, so that bubbles are caused to float to the surface and burst.

[0042] A connecting disk 22 is provided on the filling station 2, and a spiral groove 221 is provided on the connecting disk 22. The filling component 21 is inserted into the spiral groove 221. The filling component 21 can slide along the spiral groove 221. The spiral groove 221 is provided with a first end 222 and a second end 223. When the filling component 21 slides from the first end 222 to the second end 223, the filling component 21 fills the splicing glue into the annular mold 11, and the vibration table 23 is closed at this time. When the filling component 21 slides from the second end 223 to the first end 222, the filling component 21 stops filling the splicing glue into the annular mold 11, the vibration table 23 is started, and the filling component 21 slides toward the end away from the annular mold 11, so that when each layer of splicing glue is filled, the distance between the filling component 21 and the polyester film 1 at the lower end of the annular mold 11 or the filled splicing glue is the first distance.

[0043] Specifically, a first support frame is fixedly connected to the filling station 2 , and the first support frame is fixedly connected to the connecting disk 22 to support the connecting disk 22 .

[0044] Preferably, the first distance between the filling assembly 21 and the polyester film 1 at the lower end of the annular mold 11 or the filled splicing glue is 5 mm.

[0045] Preferably, the filling component 21 is divided into three layers to fill the splicing glue. When the filling component 21 is filled with the first layer of splicing glue, the distance between the filling component 21 and the polyester film 1 at the lower end of the annular mold 11 is the first distance. When the filling component 21 is filled with the second and third layers of splicing glue, the distance between the filling component 21 and the filled splicing glue is the first distance. In other embodiments of the present invention, the splicing glue can also be filled in other layers.

[0046] Preferably, when the filling component 21 is divided into three layers of splicing glue, the first layer of splicing glue is 3 mm, the second layer of splicing glue is 3 mm, and the third layer of splicing glue is 4 mm. In other embodiments of the present invention, the heights of the three layers of splicing glue can be changed at will.

[0047] Regarding the situation that when the filling component 21 slides from the first end 222 to the second end 223, the filling component 21 does not slide toward the end away from the annular mold 11, and when the filling component 21 slides from the second end 223 to the first end 222, the filling component 21 slides toward the end away from the annular mold 11, preferably, three connecting grooves 224 are opened in the spiral groove 221, and adjacent connecting grooves 224 are connected end to end. The connecting grooves 224 include a straight section 225 and an inclined section 226, and the filling component 21 is slidably connected to the connecting grooves 224. When the filling component 21 is slidably connected to the straight section 225, the filling component 21 slides from the first end 222 to the second end 223, and when the filling component 21 is slidably connected to the inclined section 226, the filling component 21 slides from the second end 223 to the first end 222, so that the filling component 21 slides toward the end away from the annular mold 11.

[0048] Preferably, each straight section 225 is lower than the inclined section 226 connected to its lower end, and the connection between each straight section 225 and the inclined section 226 connected to its lower end forms a staircase shape, and each inclined section 226 is lower than the straight section 225 connected to its lower end, and the connection between each inclined section 226 and the straight section 225 connected to its lower end forms a staircase shape, so that when the filling component 21 slides to the connection between the inclined section 226 and the straight section 225, due to the staircase shape, the filling component 21 can slide upward along the connecting groove 224, avoiding the effect of the filling component 21 moving away and returning.

[0049] Preferably, a first reset groove is extended outside the first end 222 of the spiral groove 221, and a second reset groove is provided on the first reset groove. One end of the second reset groove is connected to the end of the third layer inclined section 226, and the other end of the second reset groove is connected to the head end of the first layer straight section 225. After the third layer of splicing glue is filled and the filling component 21 is reset, and the annular mold 11 leaves the filling station 2, the filling component 21 is reset as a whole through the second reset groove to facilitate the next filling.

[0050] The filling assembly 21 includes a filler 211 and a sliding rod 212. The filler 211 is used to fill the annular mold 11 with splicing glue. The filler 211 is fixedly connected to the sliding rod 212. The sliding rod 212 is slidingly connected to the spiral groove 221. A support rod 213 is connected to the sliding rod 212. The support rod 213 is slidingly connected to the connecting groove 224. Specifically, the filler 211 is an electric filler 211, and the filler 211 is connected to an external splicing glue storage mechanism.

[0051] A first sliding groove is provided on the sliding rod 212, and the first sliding groove is slidingly connected to the support rod 213. A spring 219 is fixedly connected in the first sliding groove, and the end of the spring 219 away from the first sliding groove is fixedly connected to the support rod 213. By setting the spring 219, when the support rod 213 is slidingly connected to the straight sections 225 and the inclined sections 226 of different layers, the support rod 213 can always be plugged into the straight sections 225 and the inclined sections 226 of different layers, avoiding the effect of the support rod 213 sliding off and canceling the sliding connection with the connecting groove 224 due to the stair-like structure of the straight section 225 and the inclined section 226.

[0052] The connecting disk 22 is rotatably connected to a rotating shaft 216, and the end of the rotating shaft 216 away from the connecting disk 22 is fixedly connected to the output end of the power source, and the rotating shaft 216 is slidably connected to a connecting rod 215, and a collar 214 is fixedly connected to the connecting rod 215, and the collar 214 is slidably connected to the sliding rod 212. When the filling component 21 is slidably connected to the inclined section 226, the sliding rod 212 slides upward along the collar 214. By setting the connecting rod 215 and the rotating shaft 216 to be slidably connected, when the rotating shaft 216 rotates, the connecting rod 215 drives the sliding rod 212 to rotate along the spiral groove 221, and the connecting rod 215 slides relative to the rotating shaft 216 to avoid interference with the spiral groove 221. Specifically, a rotating block 217 is fixedly connected to the rotating shaft 216, and a second sliding groove 218 is provided on the rotating block 217, and the second sliding groove 218 is slidably connected to the connecting rod 215.

[0053] Preferably, the power source is a motor, which transmits power to the rotating shaft 216. The first support frame is fixedly connected to the second support frame, and the second support frame is fixedly connected to the motor.

[0054] Specifically, the first end 222 of the spiral groove 221 and the second end 223 of the spiral groove 221 are both provided with switches. After the sliding rod 212 contacts the switch at the second end 223, the filler 211 stops filling, the motor reverses, and the vibration table 23 starts. After the sliding rod 212 contacts the switch at the first end 222, the filler 211 starts filling, the motor rotates forward, and the vibration table 23 is turned off.

[0055] It also includes a robot, which moves the splicing glue sample from the filling station 2 to the scraping station 3, the lifting station 4 and the extrusion station 5 in sequence.

[0056] After the splicing glue in the annular mold 11 is filled, the annular mold 11 and the polyester film 1 underneath it are moved to the scraping station 3 by a robot arm. The scraping station 3 is provided with a scraping assembly 31. When the annular mold 11 is located at the scraping station 3, the scraping assembly 31 is used to scrape the splicing glue sample on the top surface of the annular mold 11 flat and remove excess splicing glue.

[0057] The scraper assembly 31 includes a scraper blade and a support frame supporting the scraper blade. The scraper blade is used to scrape the splicing glue sample on the top surface of the annular mold 11 flat and remove excess splicing glue. Preferably, the support frame is electric. After the annular mold 11 and the polyester film 1 thereunder are moved to the scraper station 3, the support frame drives the scraper blade to slide to scrape the splicing glue sample on the top surface of the annular mold 11 flat and remove excess splicing glue. In other embodiments of the present invention, the support frame may also be fixed, and the annular mold 11 and the polyester film 1 thereunder are driven to move by a manipulator, so that the scraper blade is used to scrape the splicing glue sample on the top surface of the annular mold 11 flat and remove excess splicing glue.

[0058] After the splicing glue sample on the top surface of the annular mold 11 is scraped flat and excess splicing glue is removed, the annular mold 11 and the polyester film 1 underneath it are moved to the lifting station 4 by a robot. The lifting station 4 is provided with a lifting component 41. When the annular mold 11 is located at the lifting station 4, the annular mold 11 is lifted along the second direction B by the lifting component 41 until the annular mold 11 is completely separated from the splicing glue sample to obtain a cylindrical sample to be tested.

[0059] The lifting assembly 41 includes a slide rail 411, which is slidably connected to a sliding block 412. The sliding block 412 is provided with a sliding groove, and two clamping blocks 413 are slidably connected to the sliding block 412. The two clamping blocks 413 can slide toward or away from the sliding block 412. The two clamping blocks 413 are fixedly connected to a rack 415. A gear 414 is rotatably connected to the sliding block 412. The gear 414 is engaged with the rack 415, and the two racks 415 are respectively located at both ends of the gear 414. When the gear 414 rotates, the two clamping blocks 413 can be driven to slide toward or away from the sliding block 412 to clamp or cancel the annular mold 11. After clamping the annular mold 11, the sliding block 412 slides vertically upward, so that the annular mold 11 is completely separated from the splicing glue sample to obtain a cylindrical sample to be tested.

[0060] Preferably, the gear 414 can be driven by a motor, and the output end of the motor is connected to the gear 414. The two clamping blocks 413 can slide toward or away from the sliding block 412 through the forward or reverse rotation of the motor. An electric push rod is provided in the slide rail 411, and the output end of the electric push rod is fixedly connected to the sliding block 412. The two clamping blocks 413 are moved upward or downward through the extension or retraction of the electric push rod.

[0061] After the annular mold 11 is separated from the cylindrical sample to be tested, the cylindrical sample to be tested and the polyester film 1 below it are moved to the extrusion station 5. The extrusion station 5 is provided with an extrusion assembly 51. When the cylindrical sample to be tested is located at the extrusion station 5, another polyester film 1 is placed on the top surface of the cylindrical sample to be tested. Then, pressure is applied to the cylindrical sample to be tested by the extrusion assembly 51 to obtain a circular cake-shaped sample. The circular cake-shaped sample is measured and calculated to obtain the extrudability of the splicing glue. Specifically, after another polyester film 1 is gently placed on the cylindrical sample to be tested, the specified pressure is applied. After maintaining constant pressure for 3 minutes, the pressure is immediately released to obtain a circular cake-shaped splicing glue sample. Then, a vernier caliper is used to measure the maximum diffusion diameter and the diameter perpendicular to it of the circular cake-shaped splicing glue sample, and the average value r is taken. Then, according to the area of ​​a circle = πr 2 , the extrudability of the splicing glue sample was calculated.

[0062] Repeat the splicing glue test three times, and take the arithmetic mean of the extrudability of the splicing glue samples of the three tests as the test result, and be accurate to square millimeters.

[0063] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A device for testing the extrudability of epoxy adhesives, characterized in that: It comprises an annular mold (11) and two polyester films (1), wherein the annular mold (11) is used for filling the splicing glue, and the two polyester films (1) are used for covering the splicing glue sample; It also includes a filling station (2), a lifting station (4) and an extrusion station (5) arranged in sequence along the first direction; The filling station (2) is provided with a filling assembly (21). When the annular mold (11) is located at the filling station (2), the annular mold (11) is placed on a polyester film (1), and the splicing glue is spirally layered and filled into the annular mold (11) through the filling assembly (21); The filling station (2) is provided with a connecting disk (22), and a spiral groove (221) is provided on the connecting disk (22). The filling component (21) is inserted into the spiral groove (221). The filling component (21) can slide along the spiral groove (221). The spiral groove (221) is provided with a first end (222) and a second end (223). When the filling component (21) slides from the first end (222) to the second end (223), the filling component (21) moves The annular mold (11) is filled with splicing glue, and when the filling component (21) slides from the second end (223) to the first end (222), the filling component (21) stops filling the splicing glue into the annular mold (11), and at the same time, the filling component (21) slides toward the end away from the annular mold (11), so that when each layer of splicing glue is filled, the distance between the filling component (21) and the polyester film (1) at the lower end of the annular mold (11) or the filled splicing glue is a first distance; When the annular mold (11) is located at the lifting station (4), the annular mold (11) is lifted along the second direction until the annular mold (11) is completely separated from the splicing glue sample, thereby obtaining a cylindrical sample to be tested; The extrusion station (5) is provided with an extrusion assembly (51). When the cylindrical sample to be tested is located at the extrusion station (5), another polyester film (1) is placed on the top surface of the cylindrical sample to be tested. Subsequently, pressure is applied to the cylindrical sample to be tested by the extrusion assembly (51) to obtain a round cake-shaped sample. The round cake-shaped sample is measured and calculated to obtain the extrudability of the splicing glue.

2. The test device for the extrudability of epoxy adhesive according to claim 1, characterized in that: A vibration table (23) is provided on the filling station (2). When the annular mold (11) is located at the filling station (2), the polyester film (1) is located on the vibration table (23). When each layer of splicing glue is filled, the vibration table (23) is turned off. When each layer of splicing glue is filled and the filling component (21) is reset, the vibration table (23) is started.

3. The test device for the extrudability of epoxy adhesive according to claim 2, characterized in that: The filling component (21) is filled with the splicing glue in three layers. When the filling component (21) is filled with the first layer of splicing glue, the distance between the filling component (21) and the polyester film (1) at the lower end of the annular mold (11) is the first distance. When the filling component (21) is filled with the second and third layers of splicing glue, the distance between the filling component (21) and the filled splicing glue is the first distance.

4. The test device for the extrudability of epoxy adhesive according to claim 3, characterized in that: Three connecting grooves (224) are provided in the spiral groove (221), and adjacent connecting grooves (224) are connected end to end. The connecting grooves (224) include a straight section (225) and an inclined section (226). The filling component (21) is slidably connected to the connecting grooves (224). When the filling component (21) is slidably connected to the straight section (225), the filling component (21) slides from the first end (222) to the second end (223). When the filling component (21) is slidably connected to the inclined section (226), the filling component (21) slides from the second end (223) to the first end (222). Each of the straight sections (225) is lower than the inclined section (226) connected to its lower end, and each of the inclined sections (226) is lower than the straight section (225) connected to its lower end.

5. The test device for the extrudability of epoxy adhesive according to claim 4, characterized in that: The filling assembly (21) comprises a filler (211) and a sliding rod (212). The filler (211) is used to fill the annular mold (11) with splicing glue. The filler (211) is fixedly connected to the sliding rod (212). The sliding rod (212) is slidably connected to the spiral groove (221). A support rod (213) is connected to the sliding rod (212). The support rod (213) is inserted into the connecting groove (224) and slides along it.

6. The test device for the extrudability of epoxy adhesive according to claim 5, characterized in that: A first sliding groove is provided on the sliding rod (212), the first sliding groove is slidably connected to the support rod (213), a spring (219) is fixedly connected in the first sliding groove, and one end of the spring (219) away from the first sliding groove is fixedly connected to the support rod (213).

7. The test device for the extrudability of epoxy adhesive according to claim 5, characterized in that: The connecting disk (22) is rotatably connected to a rotating shaft (216), and one end of the rotating shaft (216) away from the connecting disk (22) is fixedly connected to the output end of the power source. The rotating shaft (216) is slidably connected to a connecting rod (215), and a collar (214) is fixedly connected to the connecting rod (215). The collar (214) is slidably connected to the sliding rod (212). When the filling component (21) is slidably connected to the inclined section (226), the sliding rod (212) slides upward along the collar (214).

8. The test device for epoxy adhesive extrudability according to claim 1, characterized in that: A scraping station (3) is provided between the filling station (2) and the lifting station (4). When the annular mold (11) is located at the scraping station (3), the splicing glue sample on the top surface of the annular mold (11) is scraped flat and excess splicing glue is removed.

9. The test device for the extrudability of epoxy adhesive according to claim 8, characterized in that: It also includes a robot, through which the splicing glue sample is moved from the filling station (2) to the scraping station (3), the lifting station (4) and the extrusion station (5) in sequence.

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