Polyurethane adhesive detection device based on drying oven

Abstract

The polyurethane adhesive detection device comprises the oven, a fixed seat, a pressure sensor, a pressing plate, a base plate, a base film and a weight, the fixed seat is arranged at the top of an inner cavity of the oven, the base plate is vertically arranged in the oven, the top of the base plate is connected with the fixed seat, the front face of the base plate faces one side of the oven, and the pressure sensor is arranged on the pressing plate. The base plate is vertically coated with a polyurethane adhesive, the base film is attached to the surface of the polyurethane adhesive, the bottom of the base film extends to the position below the base plate, the pressing plate is suspended in front of the front face of the base plate to press and fix the base film, a guide rod horizontally extending to the outer side of the drying oven is arranged on the back face of the pressing plate, and a stress plate is vertically arranged at the outer end of the guide rod. The pressure sensor is arranged on the outer side face of the stress plate. According to the polyurethane adhesive detection device based on the drying oven, the drying oven can be used for temperature control, accurate pressure is applied to a base film through the pressing plate for pressing, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the field of polyurethane adhesive testing equipment, in particular to a polyurethane adhesive testing device based on an oven. Background Technique

[0002] In the production process of polyurethane adhesives, performance testing is required, such as peel performance testing. It is necessary to first apply the polyurethane adhesive on the surface of the substrate to form a glue film, then hot-press and fix the base film on the glue film, and finally pull the base film to achieve the detection of the peel performance of the glue film.

[0003] During the process of hot-pressing and fixing the base film on the glue film, attention should be paid to the temperature and the applied pressure. During the pulling process of the base film, temperature control is also required. However, in the prior art, there is no dedicated equipment, resulting in non-standard operation of the peel performance detection of polyurethane adhesives, which in turn affects the accuracy of the detection data and needs to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a polyurethane adhesive testing device based on an oven, which can standardize the peel performance detection of polyurethane adhesives and improve the convenience of temperature and pressure control.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A polyurethane adhesive testing device based on an oven includes: an oven, a fixed seat, a pressure sensor, a pressing plate, a substrate, a base film, and weights. The fixed seat is arranged at the top of the inner cavity of the oven. The substrate is arranged vertically in the oven and its top is connected to the fixed seat. The front of the substrate faces one side of the oven, and a polyurethane adhesive is longitudinally coated on it. The base film is attached to the surface of the polyurethane adhesive, and the bottom of the base film extends below the substrate. The pressing plate is suspended in front of the substrate to press and fix the base film. A guiding rod horizontally extending to the outside of the oven is arranged on the back of the pressing plate. A force-receiving plate is vertically arranged at the outer end of the guiding rod. The pressure sensor is arranged on the outer side of the force-receiving plate. After the pressing plate is separated from the base film, the weights are hung at the bottom of the base film for peel performance detection.

[0007] Wherein, a clamping groove corresponding to the top of the substrate is concavely arranged at the bottom of the fixed seat.

[0008] Wherein, a first screw extending into the clamping groove to fasten the substrate is arranged on one side of the fixed seat.

[0009] Wherein, a limiting plate extending downward to the back of the substrate is arranged on one side of the fixed seat.

[0010] Wherein, a guiding sleeve corresponding to the guiding rod is arranged on the side wall of the oven.

[0011] Among them, the substrate is made of medium-density fiberboard, and the base film is made of PVC film.

[0012] Among them, a guide post is horizontally arranged on the side of the oven on one side of the stress plate. A pressure bar is movably arranged on the guide post. A waist hole penetrated by the guide post is arranged on the pressure bar. A nut is arranged on the guide post at the outer end of the pressure bar. The front end of the pressure bar extends to the outside of the pressure sensor. A threaded hole is arranged at the tail end of the pressure bar, and a second screw pointing to the side of the oven is arranged in the threaded hole.

[0013] Among them, a backing plate corresponding to the second screw is arranged on the side of the oven.

[0014] The beneficial effects of the present utility model: A polyurethane adhesive detection device based on an oven can utilize the oven for temperature control, and apply precise pressure to the base film through a pressing plate for lamination. The operation is simple, and the standardization and accuracy of the peel performance detection of the polyurethane adhesive are improved. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is Figure 1 a partial enlarged view of part A in Detailed Embodiments

[0017] The following Figures 1 to 2 is combined with

[0018] As Figure 1 and Figure 2 shown, the polyurethane adhesive detection device based on an oven includes: an oven 1, a fixed seat 2, a pressure sensor 8, a pressing plate 14, a substrate 16, a base film 4, and weights 3. The fixed seat 2 is arranged at the top of the inner cavity of the oven 1. The substrate 16 is vertically arranged in the oven 1 and its top is connected to the fixed seat 2. A card slot 17 corresponding to the top of the substrate 16 is concavely arranged at the bottom of the fixed seat 2, facilitating assembly.

[0019] A first screw 18 extending into the card slot 17 to fasten the substrate 16 is arranged on one side of the fixed seat 2, with a firm structure. A limiting plate 15 extending downward to the back of the substrate 16 is arranged on one side of the fixed seat 2 to support the back of the substrate 16 and prevent the substrate 16 from tilting when the front side is stressed.

[0020] As Figure 2As shown, the front side of the substrate 16 faces one side of the oven, and polyurethane adhesive 19 is longitudinally coated thereon to obtain a rectangular film. In this embodiment, the substrate 16 is made of medium density fiberboard, which facilitates the adhesion of the polyurethane adhesive 19.

[0021] Attach the base film 4 to the surface of the polyurethane adhesive 19, and the bottom of the base film 4 extends below the substrate 16. In this embodiment, the base film 4 is made of PVC film, which is widely used and has a certain representativeness. In order to fix the base film 4 to the polyurethane adhesive 19, hot pressing is required.

[0022] Suspend the pressing plate 14 in front of the front side of the substrate 16 to press and fix the base film 4. In this embodiment, hot pressing is required for 2 - 3 minutes in a temperature environment of 100 °C. The temperature environment of 100 °C can be provided by the oven 1. In order to standardize the detection, the pressing plate 14 also needs to adopt a unified pressure.

[0023] In this embodiment, a guiding rod 6 extending horizontally to the outside of the oven 1 is provided on the back side of the pressing plate 14, and a guiding sleeve 5 corresponding to the guiding rod 6 is provided on the side wall of the oven 1 to perform horizontal guiding of the guiding rod 6 and improve the stability. A force - receiving plate 7 is vertically provided at the outer end of the guiding rod 6, and a pressure sensor 8 is provided on the outer side surface of the force - receiving plate 7. When the pressure sensor 8 is stressed, it performs pressure detection and transmits the force to the force - receiving plate 7, and finally applies it to the pressing plate 14.

[0024] As Figure 1 shown, a guide post 11 is horizontally provided on the side of the oven 1 on one side of the force - receiving plate 7. A pressing rod 9 is movably provided on the guide post 11. A waist - shaped hole penetrated by the guide post 11 is provided on the pressing rod 9, which facilitates the horizontal movement and flipping adjustment of the pressing rod 9. A nut 10 is provided on the guide post 11 at the outer end of the pressing rod 9 to perform the limit adjustment of the pressing rod 9.

[0025] The front end of the pressing rod 9 extends to the outside of the pressure sensor 8. A threaded hole is provided at the tail end of the pressing rod 9, and a second screw 12 pointing to the side of the oven 1 is provided in the threaded hole. In this embodiment, a backing plate 13 corresponding to the second screw 12 is provided on the side of the oven 1. By rotating the second screw 12, the outer end of the tail end of the pressing rod 9 is pushed out, so that the front end of the pressing rod 9 applies pressure to the pressure sensor 8, and the pressure is adjusted by rotating the second screw 12, and the operation is simple. The pressure sensor 8 is externally connected to a display, and the pressure can be displayed in real time.

[0026] After hot pressing, separate the pressing plate 14 from the base film 4, and hang a weight 3 at the bottom of the base film 4 to perform the peel performance test. By changing the temperature of the oven 1, the peel performance of the polyurethane adhesive under different temperature adjustments can be tested.

[0027] The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation manners and application scopes. The content of this specification should not be construed as a limitation to the present utility model.

Claims

1. An oven-based polyurethane adhesive testing device for testing the peeling performance of polyurethane adhesives, characterized in that, Including: An oven, a fixing seat, a pressure sensor, a pressing plate, a substrate, a base film and weights. The fixing seat is arranged at the top of the inner cavity of the oven. The substrate is arranged vertically in the oven and its top is connected to the fixing seat. The front side of the substrate faces one side of the oven, and polyurethane adhesive is longitudinally coated on it. The base film is attached to the surface of the polyurethane adhesive, and the bottom of the base film extends below the substrate. The pressing plate is suspended in front of the front of the substrate to press and fix the base film. A guide rod horizontally extending to the outside of the oven is arranged on the back of the pressing plate. A force-receiving plate is vertically arranged at the outer end of the guide rod. The pressure sensor is arranged on the outer side of the force-receiving plate. After the pressing plate is separated from the base film, the weights are hung at the bottom of the base film for peel performance detection.

2. The polyurethane adhesive detection device based on an oven according to claim 1, wherein A clamping groove corresponding to the top of the substrate is concavely arranged at the bottom of the fixing seat.

3. The polyurethane adhesive detection device based on an oven according to claim 2, wherein, A first screw extending into the clamping groove to fasten the substrate is arranged on one side of the fixing seat.

4. The oven-based polyurethane adhesive detection device according to claim 2, wherein, A limiting plate extending downward to the back of the substrate is arranged on one side of the fixing seat.

5. The polyurethane adhesive detection device based on an oven according to claim 1, wherein A guide sleeve corresponding to the guide rod is arranged on the side wall of the oven.

6. The polyurethane adhesive detection device based on an oven according to claim 1, characterized in that, The substrate is made of medium-density fiberboard, and the base film is made of PVC film.

7. The oven-based polyurethane adhesive detection device according to claim 1, wherein A guide post horizontally arranged on the side of the oven and located on one side of the force-receiving plate. A pressing rod is movably arranged on the guide post. A waist hole penetrated by the guide post is arranged on the pressing rod. A nut located at the outer end of the pressing rod is arranged on the guide post. The front end of the pressing rod extends to the outside of the pressure sensor. A threaded hole is arranged at the tail end of the pressing rod. A second screw pointing to the side of the oven is arranged in the threaded hole.

8. The oven-based polyurethane adhesive detection device according to claim 7, characterized in that, A backing plate corresponding to the second screw is arranged on the side of the oven.

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