A device for detecting tensile adhesive bond strength of an adhesive

Abstract

This utility model discloses an adhesive tensile bond strength testing device, relating to the field of adhesive testing technology, including a fixed frame and a thickness adjustment component; the fixed frame: a first electric telescopic rod is installed on the left side inside, and a first coating plate is fixed on the telescopic arm of the first electric telescopic rod; a tensile gauge is installed on the right side inside the fixed frame, and a second coating plate is fixed on the output shaft of the tensile gauge; a volume adjustment component is installed on the left side of the first coating plate, and a limit component is fixed on the lower side of the volume adjustment component, the limit component being located between the first coating plate and the second coating plate; an injection component is installed on the left side of the first coating plate; the thickness adjustment component: includes a second electric telescopic rod, a connecting frame, a U-shaped transparent limit frame, and a scale groove. This adhesive tensile bond strength testing device can control the coating thickness and coating area of ​​the adhesive according to requirements.

Description

Technical Field

[0001] This utility model relates to the field of adhesive testing technology, specifically to an adhesive tensile bond strength testing device. Background Technology

[0002] Adhesives, as crucial bonding materials, directly impact product quality and reliability through their adhesive properties. Testing the bond strength of adhesives is a critical step in ensuring their performance meets standards, typically requiring specialized testing equipment. Existing testing devices simulate actual bonding conditions to measure key parameters such as peel strength and shear strength of adhesives under specific conditions. These devices generally employ mechanical loading systems combined with force sensors, meeting basic testing requirements and providing data support for adhesive quality control.

[0003] Current adhesive testing devices suffer from significant operational flaws: complex equipment structures, cumbersome testing procedures, and excessive manual intervention. Particularly in the sample preparation stage, the complete reliance on manual application of adhesive makes it difficult to precisely control the coating area and adhesive layer thickness, resulting in poor sample consistency. Furthermore, variables introduced by manual operation affect the repeatability and accuracy of test data. These issues reduce the reliability of test results and make it difficult to meet the requirements for high-precision adhesive performance evaluation. Therefore, we propose an adhesive tensile bond strength testing device. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an adhesive tensile bond strength testing device that can control the coating thickness and coating area of ​​the adhesive according to the requirements, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for testing the tensile bond strength of adhesives, comprising a fixed frame and a thickness adjustment component;

[0006] Fixed frame: A first electric telescopic rod is installed on the left side inside the frame. A first coating plate is fixed on the telescopic arm of the first electric telescopic rod. A tension gauge is installed on the right side inside the frame. A second coating plate is fixed on the output shaft of the tension gauge. A capacity adjustment component is installed on the left side of the first coating plate. A limit component is fixed on the lower side of the capacity adjustment component. The limit component is located between the first coating plate and the second coating plate. A dispensing component is installed on the left side of the first coating plate.

[0007] Thickness adjustment component: includes a second electric telescopic rod, a connecting frame, a U-shaped transparent limiting frame, and a scale groove. The second electric telescopic rod is installed on the left side of the first coating plate. The connecting frame is fixed on the telescopic arm of the second electric telescopic rod. The U-shaped transparent limiting frame is fixed on the right side of the connecting frame. A U-shaped sliding opening is opened on the left side of the first coating plate. The U-shaped transparent limiting frame is slidably connected inside the U-shaped sliding opening. The front and rear sides of the U-shaped transparent limiting frame are provided with evenly distributed scale grooves. The thickness adjustment component is used to adjust the distance between the first coating plate and the second coating plate.

[0008] Wherein: the input ends of the first and second electric telescopic rods are both electrically connected to the output end of an external PLC controller.

[0009] Furthermore, the capacity adjustment assembly includes a mounting plate, a third electric telescopic rod, and a mounting bracket. Two corresponding mounting plates are fixed to the left side of the first coating plate. A third electric telescopic rod is mounted on the upper side of the mounting plate. Mounting brackets are fixed on the telescopic arms of the two third electric telescopic rods. The input end of the third electric telescopic rod is electrically connected to the output end of an external PLC controller. The capacity adjustment assembly drives the limit assembly to move.

[0010] Furthermore, the limiting component includes a U-shaped frame, a baffle, and springs. The U-shaped frame is fixed to the lower side of the mounting bracket and is located between the first and second coating plates. The left side of the U-shaped frame is in contact with the right side of the first coating plate. The baffle is slidably connected inside the U-shaped frame, and the right side of the baffle is in contact with the left side of the second coating plate. Two corresponding springs are fixed to the left side of the baffle, and the left end of the spring is fixed to the left side inside the U-shaped frame. The front and rear sides of the U-shaped frame and the baffle are in contact with the front and rear sides inside the U-shaped transparent limiting frame. The capacity is adjusted by setting the limiting component.

[0011] Furthermore, the injection assembly includes an injection tube, a solenoid valve, and a connecting hose. An injection port is provided at the lower left end of the first coating plate. An injection tube is fixed inside the injection port. A solenoid valve is installed on the circumferential surface of the injection tube. A connecting hose is fixed at the left end inside the injection tube. A connecting flange ring is fixed at the front end of the connecting hose. The input end of the solenoid valve is electrically connected to the output end of an external PLC controller. By setting the injection assembly, adhesive is injected between the first coating plate and the second coating plate and placed inside the U-shaped transparent limiting frame.

[0012] Furthermore, an infrared rangefinder is installed on the left side of the first coating plate, and a reflector is fixed on the right side of the connecting frame. The infrared rangefinder and the reflector correspond to each other. The input end of the infrared rangefinder is electrically connected to the output end of an external PLC controller. The moving distance of the connecting frame is adjusted by setting the infrared rangefinder.

[0013] Furthermore, two corresponding fixing strips are fixed on the front and rear sides of the second coating plate, and two corresponding guide holes are opened on the right side of the fixing strips. Guide rods are slidably connected inside the guide holes, and all four guide rods are fixed inside the fixed frame. The movement direction of the second coating plate is limited by setting the fixing strips and guide rods.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This adhesive tensile bond strength testing device has the following advantages:

[0015] 1. The thickness adjustment component drives the U-shaped transparent limiting frame to move horizontally through the second electric telescopic rod. Combined with the calibration of the scale groove and the real-time feedback of the infrared rangefinder, the thickness of the adhesive layer can be precisely adjusted.

[0016] 2. The capacity adjustment component is linked to the limit component. The vertical position of the baffle is controlled by the third electric telescopic rod. With the elastic compensation of the spring, the coating area is uniformly limited, avoiding glue overflow or uneven distribution. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the front structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the thickness adjustment component of this utility model;

[0019] Figure 3 This is a schematic diagram of the capacity adjustment component of this utility model;

[0020] Figure 4 This is a schematic diagram of the limiting component structure of this utility model.

[0021] In the diagram: 1 Fixed frame, 2 First electric telescopic rod, 3 First coating plate, 4 Tensile gauge, 5 Second coating plate, 6 Thickness adjustment assembly, 61 Second electric telescopic rod, 62 Connecting frame, 63 U-shaped transparent limiting frame, 64 Scale groove, 7 Capacity adjustment assembly, 71 Mounting plate, 72 Third electric telescopic rod, 73 Mounting frame, 8 Injection assembly, 81 Injection pipe, 82 Solenoid valve, 83 Connecting hose, 9 Limiting assembly, 91 U-shaped frame, 92 Baffle, 93 Spring, 10 Infrared rangefinder, 11 Reflector, 12 Fixing strip, 13 Guide rod. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This embodiment provides a technical solution: an adhesive tensile bond strength testing device, including a fixed frame 1 and a thickness adjustment component 6;

[0024] Fixed frame 1: A first electric telescopic rod 2 is installed on the left side inside the frame 1. A first coating plate 3 is fixed on the telescopic arm of the first electric telescopic rod 2. A tension gauge 4 is installed on the right side inside the frame 1. A second coating plate 5 is fixed on the output shaft of the tension gauge 4. A capacity adjustment assembly 7 is installed on the left side of the first coating plate 3. A limit assembly 9 is fixed on the lower side of the capacity adjustment assembly 7. The limit assembly 9 is located between the first coating plate 3 and the second coating plate 5. A dispensing assembly 8 is installed on the left side of the first coating plate 3. The capacity adjustment assembly 7 includes a mounting plate 71, a third electric telescopic rod 72, and a mounting bracket 73. Two corresponding mounting plates 71 are fixed on the left side of the first coating plate 3. A second electric telescopic rod 72 is installed on the upper side of the mounting plate 71. Three electric telescopic rods 72, with mounting brackets 73 fixed on the telescopic arms of the two third electric telescopic rods 72. The input end of the third electric telescopic rod 72 is electrically connected to the output end of an external PLC controller. The limit assembly 9 includes a U-shaped frame 91, a baffle 92, and springs 93. The U-shaped frame 91 is fixed to the lower side of the mounting bracket 73. The U-shaped frame 91 is located between the first coating plate 3 and the second coating plate 5. The left side of the U-shaped frame 91 is in contact with the right side of the first coating plate 3. The baffle 92 is slidably connected inside the U-shaped frame 91. The right side of the baffle 92 is in contact with the left side of the second coating plate 5. Two corresponding springs 93 are fixed to the left side of the baffle 92. The left end of the spring 93 is fixed to the left side inside the U-shaped frame 91. The front and rear sides of the U-shaped frame 91 and the baffle 92 are both in contact with the front and rear sides inside the U-shaped transparent limiting frame 63. The injection assembly 8 includes an injection pipe 81, a solenoid valve 82 and a connecting hose 83. An injection port is opened at the lower left side of the first coating plate 3. An injection pipe 81 is fixed inside the injection port. A solenoid valve 82 is installed on the circumference of the injection pipe 81. A connecting hose 83 is fixed at the left end inside the injection pipe 81. A connecting flange ring is fixed at the front end of the surface of the connecting hose 83. The input end of the solenoid valve 82 is electrically connected to the output end of an external PLC controller. By setting the injection assembly 8, the adhesive is injected between the first coating plate 3 and the second coating plate 5 and placed inside the U-shaped transparent limiting frame 63. The capacity is adjusted by setting the limiting assembly 9. The capacity adjustment assembly 7 drives the limiting assembly 9 to move.

[0025] Thickness adjustment component 6: includes a second electric telescopic rod 61, a connecting frame 62, a U-shaped transparent limiting frame 63, and a scale groove 64. The second electric telescopic rod 61 is installed on the left side of the first coating plate 3. The connecting frame 62 is fixed on the telescopic arm of the second electric telescopic rod 61. The U-shaped transparent limiting frame 63 is fixed on the right side of the connecting frame 62. A U-shaped sliding opening is opened on the left side of the first coating plate 3. The U-shaped transparent limiting frame 63 is slidably connected inside the U-shaped sliding opening. Scale grooves 64 are evenly distributed on both the front and rear sides of the U-shaped transparent limiting frame 63. The thickness adjustment component 6 is used to adjust the distance between the first coating plate 3 and the second coating plate 5.

[0026] Wherein: the input ends of the first electric telescopic rod 2 and the second electric telescopic rod 61 are both electrically connected to the output end of an external PLC controller.

[0027] Wherein: an infrared rangefinder 10 is installed on the left side of the first coating plate 3, and a reflector 11 is fixed on the right side of the connecting frame 62. The infrared rangefinder 10 and the reflector 11 correspond to each other. The input end of the infrared rangefinder 10 is electrically connected to the output end of an external PLC controller. The moving distance of the connecting frame 62 is adjusted by setting the infrared rangefinder 10.

[0028] Wherein: two corresponding fixing strips 12 are fixed on the front and rear sides of the second coating plate 5, and two corresponding guide holes are opened on the right side of the fixing strips 12. Guide rods 13 are slidably connected inside the guide holes. All four guide rods 13 are fixed inside the fixed frame 1. The movement direction of the second coating plate 5 is limited by setting the fixing strips 12 and guide rods 13.

[0029] The working principle of the adhesive tensile bond strength testing device provided by this utility model is as follows: The second electric telescopic rod 61 of the thickness adjustment component 6 is activated by an external PLC controller, driving the connecting frame 62 to move the U-shaped transparent limiting frame 63 horizontally along the U-shaped sliding opening on the left side of the first coating plate 3. The operator precisely controls the gap width between the first coating plate 3 and the second coating plate 5 based on the real-time distance feedback between the infrared rangefinder 10 and the reflector 11, thereby determining the target thickness of the adhesive coating. Then, the third electric telescopic rod 72 of the capacity adjustment component 7 pushes the mounting frame 73 and the U-shaped frame 91 of the limiting component 9 to move up and down, adjusting the contact height between the baffle 92 and the second coating plate 5. The elastic compensation effect of the spring 93 causes the baffle... 92 remains in contact with the left side surface of the second coating plate 5, and together with the U-shaped transparent limiting frame 63, it defines the lateral coating range of the adhesive. Then, the solenoid valve 82 is opened to inject the adhesive into the gap between the first coating plate 3 and the second coating plate 5 through the connecting hose 83 and the injection tube 81. The adhesive is uniformly filled under the horizontal boundary constraint of the U-shaped transparent limiting frame 63, forming a standardized adhesive layer with controllable thickness and area. After the adhesive is applied, it is allowed to solidify. Then, the first electric telescopic rod 2 drives the first coating plate 3 to move to the left. The second coating plate 5 maintains linear displacement through the guide rod 13 under the traction of the tension gauge 4. The adhesive generates peeling force during the stretching process. The tension gauge 4 records the maximum tensile load in real time. Combining the adhesive layer thickness and area parameters, the bonding strength is quickly calculated.

[0030] It is worth noting that the external PLC controller disclosed in the above embodiments is specifically a Siemens S7-200. The first electric telescopic rod 2, the second electric telescopic rod 61, the third electric telescopic rod 72, the solenoid valve 82, and the infrared rangefinder 10 can be freely configured according to the actual application scenario. The external PLC controller controls the operation of the first electric telescopic rod 2, the second electric telescopic rod 61, the third electric telescopic rod 72, the solenoid valve 82, and the infrared rangefinder 10 using methods commonly used in the prior art.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An apparatus for testing the tensile adhesive bond strength of an adhesive, characterized by: Includes a fixed frame (1) and a thickness adjustment assembly (6); Fixed frame (1): A first electric telescopic rod (2) is installed on the left side inside. A first coating plate (3) is fixed on the telescopic arm of the first electric telescopic rod (2). A tension gauge (4) is installed on the right side inside the fixed frame (1). A second coating plate (5) is fixed on the output shaft of the tension gauge (4). A capacity adjustment component (7) is installed on the left side of the first coating plate (3). A limit component (9) is fixed on the lower side of the capacity adjustment component (7). The limit component (9) is located between the first coating plate (3) and the second coating plate (5). An injection component (8) is installed on the left side of the first coating plate (3). Thickness adjustment component (6): includes a second electric telescopic rod (61), a connecting frame (62), a U-shaped transparent limiting frame (63) and a scale groove (64). The second electric telescopic rod (61) is installed on the left side of the first coating plate (3). The connecting frame (62) is fixed on the telescopic arm of the second electric telescopic rod (61). The U-shaped transparent limiting frame (63) is fixed on the right side of the connecting frame (62). A U-shaped sliding opening is provided on the left side of the first coating plate (3). The U-shaped transparent limiting frame (63) is slidably connected inside the U-shaped sliding opening. The U-shaped transparent limiting frame (63) has evenly distributed scale grooves (64) on both the front and rear sides. Wherein: the input ends of the first electric telescopic rod (2) and the second electric telescopic rod (61) are both electrically connected to the output end of an external PLC controller.

2. The device for testing the tensile bonding strength of a viscose adhesive according to claim 1, characterized in that The capacity adjustment assembly (7) includes a mounting plate (71), a third electric telescopic rod (72), and a mounting bracket (73). Two corresponding mounting plates (71) are fixed on the left side of the first coating plate (3). The third electric telescopic rod (72) is mounted on the upper side of the mounting plate (71). The mounting bracket (73) is fixed on the telescopic arms of the two third electric telescopic rods (72). The input end of the third electric telescopic rod (72) is electrically connected to the output end of an external PLC controller.

3. The adhesive tensile bond strength testing device according to claim 2, characterized in that: The limiting component (9) includes a U-shaped frame (91), a baffle (92) and a spring (93). The U-shaped frame (91) is fixed on the lower side of the mounting bracket (73). The U-shaped frame (91) is located between the first coating plate (3) and the second coating plate (5). The left side of the U-shaped frame (91) is in contact with the right side of the first coating plate (3). The baffle (92) is slidably connected inside the U-shaped frame (91). The right side of the baffle (92) is in contact with the left side of the second coating plate (5). Two corresponding springs (93) are fixed on the left side of the baffle (92). The left end of the spring (93) is fixed inside the U-shaped frame (91). The front and rear sides of the U-shaped frame (91) and the baffle (92) are in contact with the front and rear sides inside the U-shaped transparent limiting frame (63).

4. The adhesive tensile bond strength testing device according to claim 1, characterized in that: The injection assembly (8) includes an injection tube (81), a solenoid valve (82), and a connecting hose (83). An injection port is provided at the lower left end of the first coating plate (3). An injection tube (81) is fixed inside the injection port. A solenoid valve (82) is installed on the circumferential surface of the injection tube (81). A connecting hose (83) is fixed at the left end inside the injection tube (81). A connecting flange ring is fixed at the front end of the surface of the connecting hose (83). The input end of the solenoid valve (82) is electrically connected to the output end of an external PLC controller.

5. The adhesive tensile bond strength testing device according to claim 1, characterized in that: An infrared rangefinder (10) is installed on the left side of the first coating plate (3), and a reflector (11) is fixed on the right side of the connecting frame (62). The infrared rangefinder (10) and the reflector (11) correspond to each other. The input end of the infrared rangefinder (10) is electrically connected to the output end of an external PLC controller.

6. The adhesive tensile bond strength testing device according to claim 1, characterized in that: The second coating plate (5) has two corresponding fixing strips (12) fixed on its front and rear sides. Two corresponding guide holes are opened on the right side of the fixing strips (12). Guide rods (13) are slidably connected inside the guide holes. All four guide rods (13) are fixed inside the fixed frame (1).

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