An adhesive flowability testing device

Abstract

The utility model relates to a kind of adhesive flow ability testing device, it is related to adhesive fluidity detection technical field, including oven, be set in the slope device of oven inside, Z-shaped bearing plate is hung in the top of slope device, one end of Z-shaped bearing plate is matched with the slope device and is hung, the other end of Z-shaped bearing plate is used to block adhesive and flow into the slope device, by setting Z-shaped bearing plate, when needing to carry out fluidity test to adhesive, Z-shaped bearing plate is hung directly to slope device, after use, Z-shaped bearing plate is directly removed, Z-shaped bearing plate is replaced, and cleaning, avoid affecting next use, and, directly drop adhesive on Z-shaped bearing plate, so that there is no any obstruction in the process of being heated, its temperature is the temperature in oven, to improve test accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of adhesive flowability testing technology, and specifically relates to an adhesive flowability testing device. Background Technology

[0002] The state of thermosetting adhesives at their curing temperature is complex. First, the increase in temperature causes a significant decrease in the adhesive viscosity, resulting in a significant increase in the adhesive's flowability and penetration. Simultaneously, high temperatures activate the activity of latent curing agents, causing a rapid cross-linking reaction, which in turn leads to a continuous increase in viscosity until gelation. These two processes occur concurrently and together constitute the flowability of the adhesive at its curing temperature.

[0003] Characterizing this flowability is crucial because in practical applications, a common scenario involves adhesives needing a certain degree of fluidity to allow for thorough penetration through gaps and pores after application. However, excessive flowability can lead to problems such as needle clogging or adhesive layer pitting in relays. This "certain degree" of fluidity is typically characterized by the adhesive's viscosity and thixotropic index. Viscosity represents its flowability, while the thixotropic index represents its thixotropy, i.e., its ability to inhibit flow. However, both viscosity and thixotropic index are not stable values ​​and change significantly with temperature. This makes room-temperature measurements unreliable for accurately representing the adhesive's rheological capabilities under non-room-temperature conditions. At high temperatures, the activation of latent curing agents causes rapid curing, making testing impossible.

[0004] To characterize the flowability of adhesives under curing temperature conditions, existing technologies involve dripping the adhesive into a transparent tube, which is then fixedly mounted on an inclined plate. When adjusting the temperature, the temperature of the adhesive inside the transparent tube will inevitably differ from the set temperature due to the obstruction of the transparent tube, leading to inaccurate test results. Furthermore, since the transparent tube is fixed on the inclined plate, it is inconvenient to replace it after the adhesive has been dripped in, affecting its future use.

[0005] Therefore, in order to address the above-mentioned technical problems, the design of an adhesive flowability testing device that facilitates the replacement of the adhesive carrier plate while ensuring testing accuracy, so as to enable the next test of the adhesive, is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0006] To address the aforementioned problems, this invention provides an adhesive flowability testing device that, while ensuring testing accuracy, facilitates the replacement of the adhesive carrier plate for subsequent adhesive testing.

[0007] To achieve the above objectives, this utility model provides the following solution:

[0008] An adhesive flowability testing device includes an oven, a ramp device disposed inside the oven, and a Z-shaped support plate hanging on the top of the ramp device. One end of the Z-shaped support plate is attached to the ramp device, and the other end of the Z-shaped support plate is used to prevent adhesive from flowing into the ramp device.

[0009] Preferably, the ramp device includes a bonding plate that is attached to the bottom surface of the oven, and an inclined plate that is set at an angle to the bonding plate.

[0010] Preferably, the bonding plate is hinged to the inclined plate, and a lifting device for supporting the inclined plate is provided between the bonding plate and the inclined plate.

[0011] Preferably, the lifting device is an electric push rod with one end fixedly connected to the bonding plate and the other end hinged to the inclined plate.

[0012] Preferably, the included angle is between 0 degrees and 90 degrees.

[0013] Preferably, the Z-shaped support plate includes a guide plate that fits against the inclined plate, a first extension plate that extends upward perpendicular to the inclined plate, and a second extension plate that extends downward perpendicular to the inclined plate.

[0014] Preferably, the guide plate is provided with a guide groove for the flow of the adhesive.

[0015] Preferably, the height of the ramp device is 5 to 10 centimeters.

[0016] Preferably, it also includes a temperature monitoring device, wherein the acquisition end of the temperature monitoring device is at the same height as the location where the adhesive is dripped.

[0017] Preferably, the ramp device and the Z-shaped support plate are made of one of the following materials: iron, aluminum, copper, ceramic, polypropylene, polycarbonate, and polyimide.

[0018] The present invention achieves the following technical advantages over the prior art:

[0019] By setting up a Z-shaped support plate, when the adhesive's flowability needs to be tested, the Z-shaped support plate can be directly hung on the ramp device. After use, the Z-shaped support plate can be removed, replaced, and cleaned to avoid affecting the next use. Furthermore, the adhesive can be dripped directly onto the Z-shaped support plate, ensuring that the adhesive is heated without any obstruction, and its temperature is the same as the temperature inside the oven, thus improving testing accuracy. In addition, the other end of the Z-shaped support plate can prevent the adhesive from flowing into the ramp device, ensuring that the ramp device is not affected by adhesive adhesion, eliminating the need for cleaning the ramp device, and thus reducing workload. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the embodiments 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.

[0021] Appendix Figure 1 This is a schematic diagram of the ramp device structure in the adhesive flowability testing device disclosed in the embodiment of this utility model.

[0022] Appendix Figure 2 This is an exploded view of the adhesive flowability testing device disclosed in the embodiments of this utility model;

[0023] Appendix Figure 3 This is an exploded view of the sound-generating mechanism of the adhesive flowability testing device disclosed in the embodiments of this utility model;

[0024] Among them, 1. Inclined plate; 2. Adhesive plate; 3. Angle; 4. First extension plate; 5. Guide plate; 6. Second extension plate; 7. Adhesive; 8. Temperature monitoring device. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The purpose of this invention is to provide an adhesive flowability testing device that, while ensuring testing accuracy, facilitates the replacement of the adhesive carrier plate for subsequent adhesive testing.

[0027] refer to Figures 1-2The adhesive flowability testing device disclosed in this embodiment of the present invention includes at least a temperature-adjustable oven. An inclined device is placed inside the oven, and a Z-shaped support plate is hung on top of the inclined device. One end of the Z-shaped support plate is attached to the inclined device, and the other end is used to prevent adhesive 7 from flowing into the inclined device. By setting the Z-shaped support plate, when the flowability of adhesive 7 needs to be tested, the Z-shaped support plate is directly hung on the inclined device. After use, the Z-shaped support plate is directly removed, replaced, and cleaned to avoid affecting the next use. Furthermore, the adhesive 7 is directly dripped onto the Z-shaped support plate, ensuring that there is no obstruction during heating, and its temperature is the same as the temperature inside the oven, thereby improving testing accuracy. Additionally, the other end of the Z-shaped support plate prevents adhesive 7 from flowing into the inclined device, ensuring that the inclined device is not adhered to by the adhesive 7, eliminating the need for cleaning the inclined device, and thus reducing workload.

[0028] refer to Figure 1 and Figure 2 As one implementation method, the ramp device includes a bonding plate 2 that is attached to the bottom surface of the oven and an inclined plate 1 that is set at an angle to the bonding plate 2. The ramp device is composed of the bonding plate 2 and the inclined plate 1, which not only facilitates the hanging of the Z-shaped support plate, but also has a simple structure and can greatly reduce the cost of the entire device.

[0029] It should be noted that the manufacturing process of the ramp device includes, but is not limited to, bending of metal sheets, mold casting, 3D printing, etc.

[0030] refer to Figure 1 and Figure 2 In one embodiment, the bonding plate 2 and the inclined plate 1 are hinged together, and a lifting device for supporting the inclined plate 1 is provided between the bonding plate 2 and the inclined plate 1. By hingedly connecting the bonding plate 2 and the inclined plate 1 and supporting them with the lifting device, the included angle 3 between the bonding plate 2 and the inclined plate 1 can be adjusted, thereby allowing the flowability of the adhesive 7 to be tested when the inclination angle is different.

[0031] refer to Figure 1 and Figure 2 In one embodiment, the lifting device is an electric push rod with one end fixedly connected to the bonding plate 2 and the other end hinged to the inclined plate 1.

[0032] refer to Figure 1 and Figure 2 In one embodiment, the included angle 3 between the bonding plate 2 and the inclined plate 1 is 0 degrees to 90 degrees.

[0033] refer to Figure 1 and Figure 2In one embodiment, the Z-shaped support plate includes a guide plate 5 that is attached to the inclined plate 1. One end of the guide plate 5 is provided with a first extension plate 4, and the other end of the guide plate 5 is provided with a second extension plate 6. The first extension plate 4 is perpendicular to the inclined plate 1 and extends upward to prevent the adhesive 7 from flowing into the inclined plate 1. The second extension plate 6 is perpendicular to the inclined plate 1 and extends downward to hang on the top of the inclined surface.

[0034] It should be noted that the first extension plate 4 is provided with a liquid collection tank for accommodating the adhesive 7.

[0035] Z-shaped support plates can be manufactured using methods such as mold making, 3D printing, and finished product cutting, depending on the actual bonding material. Alternatively, they can be tested directly using a fixed material. Depending on the substrate, they can be used once or repeatedly.

[0036] refer to Figure 1 and Figure 2 In one embodiment, the guide plate 5 is provided with a guide groove for the flow of adhesive 7 to guide the adhesive 7.

[0037] refer to Figures 1-3 In one embodiment, the height of the ramp device is 5 to 10 centimeters.

[0038] refer to Figures 1-3 As one implementation method, the adhesive flowability testing device also includes a temperature monitoring device 8. The acquisition end of the temperature monitoring device 8 is at the same height as the position where the adhesive 7 is dropped, so that the temperature value of the adhesive 7 can be monitored more intuitively and the testing accuracy can be improved.

[0039] It should be noted that, depending on the activity of the curing agent in adhesive 7 and the test temperature, the amount of adhesive 7 added is usually between 0.1 gram and 1 gram.

[0040] The temperature monitoring device 8 can be a thermometer or a temperature sensor. The thermometer is set perpendicular to the bottom plate of the oven, and the position of the liquid droplet and the position of the thermometer bubble are on the same plane.

[0041] refer to Figures 1-3 As one implementation method, the ramp device and the Z-shaped support plate are made of one of the following materials: iron, aluminum, copper, ceramic, polypropylene, polycarbonate, and polyimide.

[0042] The working principle of this utility model is as follows:

[0043] During testing, the ramp device is first placed in an oven and heated to the temperature to be tested. Then, the adhesive 7 is dripped onto the Z-shaped support plate near the second extension plate 6. The ramp device is then hung in the oven. After a certain period of time, the flowability data of the adhesive 7 under this temperature condition can be obtained.

[0044] The test temperature mentioned above refers to the temperature at which the adhesive 7 curing agent can be activated. Generally, the test is conducted according to the specific temperature of the production line.

[0045] The test time mentioned above refers to the time required for the adhesive to gel completely at that temperature, at which point the adhesive must cease to flow.

[0046] The following are three embodiments of this utility model:

[0047] Example 1:

[0048] Take an iron ramp device with an included angle of 30° and preheat it in an oven at 120°C for half an hour. Add 0.15g of adhesive 7 to the Z-shaped support plate made of aluminum foil near the second extension plate 6. After standing for 1 minute, place it on the ramp in the oven at 120°C. After standing for 30 minutes, observe that the flow length of adhesive 7 is about 4cm.

[0049] Example 2

[0050] Take an iron ramp device with an included angle of 30° and preheat it in an oven at 80°C for half an hour. Add 0.15g of adhesive 7 to the Z-shaped support plate made of aluminum foil near the second extension plate 6. After standing for 1 minute, place it on the ramp in the oven at 80°C. After standing for 30 minutes, observe that the flow length of adhesive 7 is about 2cm.

[0051] Example 3

[0052] Take an iron ramp device with an included angle of 3 of 60° and preheat it in an oven at 80°C for half an hour. Add 0.15 g of adhesive 7 to the Z-shaped support plate made of aluminum foil near the second extension plate 6. After standing for 1 minute, place it on the ramp in the oven at 80°C. After standing for 30 minutes, observe that the flow length of adhesive 7 is about 3.5 cm.

[0053] Any adaptive changes made according to actual needs are within the protection scope of this utility model.

[0054] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered as exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An adhesive flowability testing device, characterized in that, The device includes an oven, a ramp device installed inside the oven, and a Z-shaped support plate hanging on the top of the ramp device. One end of the Z-shaped support plate is attached to the ramp device, and the other end of the Z-shaped support plate is used to prevent adhesive from flowing into the ramp device.

2. The adhesive flowability testing device according to claim 1, characterized in that, The ramp device includes a bonding plate that is attached to the bottom surface of the oven, and an inclined plate that is set at an angle to the bonding plate.

3. The adhesive flowability testing device according to claim 2, characterized in that, The bonding plate is hinged to the inclined plate, and a lifting device for supporting the inclined plate is provided between the bonding plate and the inclined plate.

4. The adhesive flowability testing device according to claim 3, characterized in that, The lifting device is an electric push rod with one end fixedly connected to the bonding plate and the other end hinged to the inclined plate.

5. The adhesive flowability testing device according to claim 2, characterized in that, The included angle is between 0 degrees and 90 degrees.

6. The adhesive flowability testing device according to claim 2, characterized in that, The Z-shaped support plate includes a guide plate that fits against the inclined plate, a first extension plate that extends upward perpendicular to the inclined plate, and a second extension plate that extends downward perpendicular to the inclined plate.

7. The adhesive flowability testing device according to claim 6, characterized in that, The guide plate is provided with guide grooves for the flow of the adhesive.

8. The adhesive flowability testing device according to claim 1, characterized in that, The height of the ramp device is 5 to 10 centimeters.

9. The adhesive flowability testing device according to claim 1, characterized in that, It also includes a temperature monitoring device, the acquisition end of which is at the same height as the location where the adhesive is dropped.

10. The adhesive flowability testing device according to claim 1, characterized in that, The ramp device and the Z-shaped support plate are made of one of the following materials: iron, aluminum, copper, ceramic, polypropylene, polycarbonate, and polyimide.

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