A bond strength pull tester

Abstract

The utility model relates to a drawing tester technical field, the utility model provides a kind of cohesive strength drawing tester, including drawing tester body, drawing tester body includes operation panel, the both sides of the one end of operation panel are all fixedly connected with supporting plate, operation panel is provided with test plate by drawing mechanism, further include insertion frame, push mechanism, side insertion connecting plate and moving mechanism, insertion frame cooperation drawing mechanism and test plate can be moved along the length direction of supporting plate, the one end of insertion frame is provided with first puncture part, push mechanism is set on moving plate, two movable side insertion connecting plates are provided in insertion frame, second puncture part is provided on side insertion connecting plate, moving mechanism is set in insertion frame. By the above technical scheme, the technical problem that the connecting effect of sticking plate with thermal insulation outer wall is not good in the prior art is solved, when the tensile force is applied to sample, the sticking plate and the thermal insulation outer wall are separated.

Description

Technical Field

[0001] This utility model relates to the technical field of pull-out testers, specifically to a bond strength pull-out tester. Background Technology

[0002] For the construction of walls in down jacket factories, insulation materials are usually used for the exterior walls to keep the factory warm. However, existing exterior wall insulation materials generally have quality problems such as cracking, which leads to wall cracks. Cracks not only affect the aesthetics, but also allow moisture and carbon dioxide to penetrate, resulting in a decrease in insulation performance, causing hollowing and falling off, threatening building safety, and increasing maintenance costs and disputes. In the existing technology, in order to avoid cracking of external wall insulation materials, a pull-out test is usually performed on the insulation materials to test their bonding performance. As a professional device for testing the bonding performance of materials, the pull-out tester can be used to test the bonding performance of external wall insulation materials. By selecting insulation materials with good bonding strength for use on external walls, the cracking of insulation materials can be effectively reduced. Existing bond strength pull-out testers primarily apply tensile force to the sample using mechanical devices. When the tensile force reaches the ultimate strength of the bond interface, the sample is pulled out. The instrument's built-in sensors monitor the changes in tensile force in real time and convert the force signal into an electrical signal. After processing, the maximum pull-out force value is displayed or recorded. The bond strength is then calculated based on the force-bearing area of ​​the sample, thus testing the bond strength of the insulation material. Before using existing pull-out testers, an adhesive plate needs to be connected to the insulation wall surface to be tested (hereinafter referred to as the sample) using a special adhesive. Then, the area to be tested is traced along the outer side of the adhesive plate. The cracks in the removed sample disconnect the sample (the wall surface bonded to the adhesive board) from the rest of the wall surface, leaving the sample only bonded to the adhesive board. Then, a mechanical device is used to apply tensile force to the sample to test the bonding strength of the insulation material. However, if the surface of the insulated exterior wall is not cleaned properly (even if cleaned beforehand, residues may still remain, affecting the test), the adhesion between the adhesive board and the insulated exterior wall may be poor, potentially causing the adhesive board to detach from the insulated exterior wall. This interrupts the bond strength pull-out test, requiring re-bonding and retesting at another location, which is time-consuming and labor-intensive. Utility Model Content

[0003] To overcome the above-mentioned defects, the present invention provides an adhesive strength pull-out tester, which solves the technical problem in the prior art where the bonding effect between the adhesive board and the thermal insulation wall is poor, and the adhesive board detaches from the thermal insulation wall when a tensile force is applied to the sample.

[0004] According to one aspect, at least one embodiment of the present invention provides a bond strength pull-out tester, comprising a pull-out tester body, the pull-out tester body including an operation panel, with support plates fixedly connected to both sides of one end of the operation panel, a test plate disposed on the operation panel via a pull-out mechanism, the pull-out mechanism and the test plate being located between the two support plates, and further including an insertion frame, a pushing mechanism, a side insertion connecting plate and a moving mechanism, the insertion frame cooperating with the pull-out mechanism and the test plate to move along the length direction of the support plates, and a moving groove being formed on both support plates. A movable plate is slidably disposed within the movable slot, and the movable plate is fixedly connected to the test plate. One end of the insertion frame is provided with a first piercing part. The pushing mechanism is disposed on the movable plate and is used to drive the first piercing part and the insertion frame to insert into the insulation wall and separate the sample. Two movable side insertion connecting plates are disposed within the insertion frame, and a second piercing part is provided on the side insertion connecting plates. The movable mechanism is disposed within the insertion frame and is used to drive the two side insertion connecting plates to move towards each other and insert the sample in the insertion frame from the side, thereby cooperating with the test plate to detach the sample from the insulation wall.

[0005] Preferably, the pushing mechanism includes a sliding plate, a first threaded rod, a sliding rod, and a first motor. Two sliding grooves are formed in the moving plate. The sliding plate is slidably disposed in the sliding grooves. The two sliding plates are respectively fixedly connected to both ends of the insertion frame. The first threaded rod is rotatably disposed in one of the sliding grooves and threadedly connected to one of the sliding plates. The sliding rod is fixedly disposed in the other sliding groove and slidably connected to the other sliding groove. The first motor is mounted on the moving plate, and the output end of the first motor is coaxially fixedly connected to the first threaded rod.

[0006] Furthermore, the moving mechanism includes a drive plate, a second threaded rod, and a synchronous drive component. Two slots are provided in the insertion frame. The drive plate is slidably disposed in the slots and fixedly connected to the side insertion connecting plate. The second threaded rod is rotatably disposed in the slots and threadedly connected to the drive plate. The threads of the two second threaded rods have opposite directions. The synchronous drive component is disposed in the insertion frame and is used to drive the two second threaded rods to rotate simultaneously.

[0007] Furthermore, the synchronous drive component includes a connecting shaft, a first bevel gear, a second bevel gear, and a second motor. The connecting shaft is rotatably disposed within the insertion frame, and its two ends are respectively coaxially and fixedly connected to two second threaded rods. The first bevel gear is sleeved on the outside of the connecting shaft and coaxially and fixedly connected to the connecting shaft. The second bevel gear is rotatably disposed within the insertion frame and meshes with the first bevel gear. The second motor is installed within the insertion frame, and its output end is coaxially and fixedly connected to the second bevel gear.

[0008] As a further aspect of this application, in order to insert the two side-insertion connecting plates from both sides of the sample depth for anchoring, the insertion frame of the sample is provided with a removal groove that cooperates with the side-insertion connecting plates, and the removal groove is located at one end near the first puncture part.

[0009] As a further solution of this application, in order to ensure that the side insertion connecting plate always separates the empty slot and the removal slot, and to prevent the empty slot from communicating with the removal slot, so that the insulation material debris in the insertion frame enters the empty slot and blocks the movement of the drive plate, the length of the empty slot is the same as the length of the side insertion connecting plate.

[0010] Based on the aforementioned solution, when the support plate is attached to the insulation wall, the first piercing part is attached to the insulation wall, and the insertion frame can be driven to be fully inserted into the insulation wall. The movable distance of the slide plate in the slide groove is the same as the length of the insertion frame. One end of the first piercing part and one end of the support plate are on the same horizontal plane.

[0011] Furthermore, to prevent the movable plate from sliding along the side wall of the operation panel, the depth of the movable groove is less than the thickness of the support plate.

[0012] The beneficial effects of this utility model are as follows: In this utility model, through the cooperation of the moving plate, the insertion frame, the side insertion connecting plate and the moving mechanism, the two support plates are driven to fit against the insulation wall by the hand-held operation panel, and the first motor is started to drive the first piercing part and the insertion frame to be inserted into the insulation wall. This can save the work of cutting the sample. By starting the second motor, the second piercing part and the side insertion connecting plate are inserted into the insulation wall sample in the insertion frame. In this way, when the test plate moves close to the operation panel, the test plate moves the moving plate, the insertion frame, and the sample that is cut by the two side insertion connecting plates in the insertion frame. This allows for the bonding strength test of the sample, which has a good fixing effect and is not easy to detach. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of an adhesive strength pull-out tester in one embodiment of the present invention; Figure 2 This is a partial structural cross-sectional view of the movable plate, insertion frame, and pushing mechanism in this utility model. Figure 3 This is a partial structural cross-sectional view of the cooperation between the insertion plate and the moving mechanism in this utility model; Figure 4 This is a partial structural cross-sectional view of the present invention, showing the state after the side insertion connecting plate and the second piercing part have moved, with the insertion plate and the moving mechanism cooperating. Figure 5 This is a schematic diagram of the overall structure of the present invention, showing the state after the insertion frame has been moved.

[0015] In the diagram: 1. Operation panel; 2. Support plate; 3. Pulling mechanism; 4. Test plate; 5. Moving plate; 6. Moving groove; 7. Insertion frame; 8. First piercing part; 9. Side insertion connecting plate; 10. Second piercing part; 11. Slide plate; 12. Slide groove; 13. First threaded rod; 14. Slide rod; 15. First motor; 16. Drive plate; 17. Empty groove; 18. Second threaded rod; 19. Connecting shaft; 20. First bevel gear; 21. Second bevel gear; 22. Second motor; 23. Removal groove. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0017] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0018] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] like Figures 1-5 As shown, it illustrates a pull-out strength tester according to an embodiment of the present invention, including a pull-out tester body. The pull-out tester body includes an operation panel 1, with support plates 2 fixedly connected to both sides of one end of the operation panel 1. A test plate 4 is provided on the operation panel 1 through a pull-out mechanism 3. The pull-out mechanism 3 and the test plate 4 are both located between the two support plates 2. The pull-out mechanism 3 drives the test plate 4 to move through a screw structure. The test plate 4, in conjunction with the pull-out mechanism 3, can generate mechanical tension to perform a pull-out test on the thermal insulation wall. A sensor is provided inside the operation panel 1 to sense the tension on the test plate 4. It also includes an insertion frame 7, a pushing mechanism, a side insertion connecting plate 9, and a moving mechanism. like Figure 1 As shown, the insertion frame 7, together with the pulling mechanism 3 and the test plate 4, can move along the length of the support plate 2. Both support plates 2 are provided with a moving groove 6. A moving plate 5 is slidably disposed in the moving groove 6. The moving plate 5 is fixedly connected to the test plate 4. In order to prevent the moving plate 5 from sliding along the side wall of the operation panel 1, the depth of the moving groove 6 is less than the thickness of the support plate 2. The two support plates 2 "clamp" the moving plate 5. The moving plate 5 is driven to slide along the inner wall of the moving groove 6 by the movement of the test plate 4. like Figure 2 and Figure 5As shown, one end of the insertion frame 7 is provided with a first piercing part 8. The pushing mechanism is set on the moving plate 5 to drive the first piercing part 8 and the insertion frame 7 into the insulation wall and cut out the sample. The pushing mechanism includes a sliding plate 11, a first threaded rod 13, a sliding rod 14 and a first motor 15. Two sliding grooves 12 are opened in the moving plate 5. The sliding plate 11 is slidably set in the sliding groove 12. The two sliding plates 11 are fixedly connected to both ends of the insertion frame 7 respectively. The first threaded rod 13 is rotatably set in one sliding groove 12 and threadedly connected to one sliding plate 11. The sliding rod 14 is fixedly set in the other sliding groove 12 and slidably connected to the other sliding groove 12. The first motor 15 is mounted on the moving plate 5. The output end of the first motor 15 is coaxially fixedly connected to the first threaded rod 13. When the support plate 2 When in contact with the insulation wall, the first piercing part 8 is in contact with the insulation wall, and the insertion frame 7 can be driven to be fully inserted into the insulation wall. The movable distance of the sliding plate 11 in the sliding groove 12 is the same as the length of the insertion frame 7. One end of the first piercing part 8 and one end of the support plate 2 are on the same horizontal plane. By holding the operation panel 1, the two support plates 2 are driven to be in contact with the insulation wall. At this time, the first piercing part 8 is also in contact with the insulation wall. By starting the first motor 15, the output end of the first motor 15 drives the first threaded rod 13 to rotate. The first threaded rod 13 drives the sliding plate 11 connected to it to move along the inner wall of the sliding groove 12. The sliding plate 11 drives the insertion frame 7 to move towards the insulation wall under the guidance and support of the two sliding plates 11, so that the first piercing part 8 and the insertion frame 7 are inserted into the insulation wall. like Figure 3 and Figure 4 As shown, the insertion frame 7 is provided with two movable side-insertion connecting plates 9, each with a second piercing part 10. To allow the two side-insertion connecting plates 9 to be inserted from both sides of the sample depth for anchoring, the sample insertion frame 7 has a removal groove 23 that mates with the side-insertion connecting plates 9. The removal groove 23 is located at one end near the first piercing part 8. A moving mechanism is provided inside the insertion frame 7 to drive the two side-insertion connecting plates 9 to move towards each other and insert the sample inside the insertion frame 7 from the side. This, in conjunction with the test plate 4, detaches the sample from the insulation wall. The moving mechanism includes a drive plate 16 and a second piercing part 10. The threaded rod 18 and the synchronous drive are inserted into the frame 7, where two empty slots 17 are provided. The drive plate 16 is slidably disposed in the empty slots 17 and fixedly connected to the side insertion connecting plate 9. In order to keep the side insertion connecting plate 9 from separating the empty slots 17 and the removal slots 23, and to prevent the empty slots 17 and the removal slots 23 from communicating, the insulation material debris in the insertion frame 7 enters the empty slots 17 and blocks the movement of the drive plate 16. The length of the empty slots 17 is the same as the length of the side insertion connecting plate 9. The second threaded rod 18 is rotatably disposed in the empty slots 17 and is threadedly connected to the drive plate 16. The threads of the two second threaded rods 18 are opposite in direction. A synchronous drive unit is installed inside the insertion frame 7 to simultaneously drive the two second threaded rods 18 to rotate. The synchronous drive unit includes a connecting shaft 19, a first bevel gear 20, a second bevel gear 21, and a second motor 22. The connecting shaft 19 is rotatably installed inside the insertion frame 7, with both ends coaxially fixedly connected to the two second threaded rods 18. The first bevel gear 20 is sleeved on the outside of the connecting shaft 19 and coaxially fixedly connected to it. The second bevel gear 21 is rotatably installed inside the insertion frame 7 and meshes with the first bevel gear 20. The second motor 22 is installed inside the insertion frame 7, and its output end is coaxially fixedly connected to the second bevel gear 21. Specifically, by starting the second motor 22, the output of the second motor 22... The end drives the second bevel gear 21 to rotate, the second bevel gear 21 drives the first bevel gear 20 to rotate, the first bevel gear 20 drives the connecting shaft 19 to rotate, the connecting shaft 19 drives the two second threaded rods 18 to rotate, the two second threaded rods 18 respectively drive the two drive plates 16 to slide along the inner wall of the slot 17, the two drive plates 16 simultaneously drive the two side insertion connecting plates 9 to move towards each other, the two side insertion connecting plates 9 drive the second piercing part 10 to insert into the thermal insulation wall sample in the insertion frame 7, so that when the test plate 4 moves close to the operation panel 1, the test plate 4 drives the moving plate 5 and the insertion frame 7 and the sample cut by the two side insertion connecting plates 9 in the insertion frame 7 to move, so as to perform the bonding strength test on the sample; Working principle: When the adhesive strength pull-out tester tests the adhesive strength of the thermal insulation material on the exterior wall, the hand-held operation panel 1 drives the two support plates 2 to fit against the thermal insulation wall, and the first motor 15 is started. The output end of the first motor 15 drives the first threaded rod 13 to rotate. The first threaded rod 13 drives the slide plate 11 connected to it to move along the inner wall of the slide groove 12. The slide plate 11 drives the insertion frame 7 to move towards the thermal insulation wall under the guidance and support of the two slide plates 11, so that the first piercing part 8 and the insertion frame 7 are inserted into the thermal insulation wall. By starting the second motor 22, the output end of the second motor 22 drives the second bevel gear 21 to rotate, the second bevel gear 21 drives the first bevel gear 20 to rotate, the first bevel gear 20 drives the connecting shaft 19 to rotate, the connecting shaft 19 drives the two second threaded rods 18 to rotate, and the two second threaded rods 18 respectively drive the two drive plates 16 to slide along the inner wall of the slot 17. The two drive plates 16 simultaneously drive the two side-insertion connecting plates 9 to move towards each other. The two side-insertion connecting plates 9 drive the second piercing part 10 to insert into the thermal insulation wall sample in the insertion frame 7. In this way, when the test plate 4 moves close to the operation panel 1, the test plate 4 drives the moving plate 5 and the insertion frame 7, as well as the sample in the insertion frame 7 that is cut by the two side-insertion connecting plates 9, to move. This allows for the bonding strength test of the sample, and the sample is well fixed and not easily detached.

[0023] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A pull-out strength tester for adhesive bonding, comprising a pull-out tester body, the pull-out tester body including an operation panel (1), with support plates (2) fixedly connected to both sides of one end of the operation panel (1), and a test plate (4) disposed on the operation panel (1) via a pull-out mechanism (3), the pull-out mechanism (3) and the test plate (4) being located between the two support plates (2), characterized in that, Also includes: Insertion frame (7), which, together with the pulling mechanism (3) and the test plate (4), can move along the length direction of the support plate (2). Both support plates (2) are provided with moving grooves (6). A moving plate (5) is slidably arranged in the moving groove (6). The moving plate (5) is fixedly connected to the test plate (4). One end of the insertion frame (7) is provided with a first piercing part (8). A pushing mechanism is provided on a movable plate (5) to drive the first piercing part (8) and the insertion frame (7) into the insulation wall and cut out the sample; Side insertion connecting plate (9), two movable side insertion connecting plates (9) are provided in the insertion frame (7), and a second piercing part (10) is provided on the side insertion connecting plate (9). The moving mechanism is set in the insertion frame (7) to drive the two side insertion connecting plates (9) to move towards each other and insert the sample in the insertion frame (7) from the side, and cooperate with the test plate (4) to separate the sample from the thermal insulation wall.

2. The bond strength pull-out tester according to claim 1, characterized in that, The propulsion mechanism includes: The sliding plate (11) has two grooves (12) inside the movable plate (5). The sliding plate (11) is slidably disposed in the grooves (12). The two sliding plates (11) are respectively fixedly connected to the two ends of the insertion frame (7). The first threaded rod (13) is rotatably disposed in a groove (12) and threadedly connected to a slide plate (11); A slide rod (14) is fixedly disposed in another slide groove (12) and slidably connected to the other slide groove (12); The first motor (15) is mounted on the movable plate (5), and the output end of the first motor (15) is coaxially fixedly connected to the first threaded rod (13).

3. The bond strength pull-out tester according to claim 2, characterized in that, The moving mechanism includes: The drive plate (16) has two empty slots (17) in the insertion frame (7). The drive plate (16) is slidably disposed in the empty slots (17) and fixedly connected to the side insertion connecting plate (9). The second threaded rod (18) is rotatably disposed in the slot (17) and threadedly connected to the drive plate (16). The threads of the two second threaded rods (18) are opposite in direction. A synchronous drive unit is disposed within the insertion frame (7) and is used to simultaneously drive the two second threaded rods (18) to rotate.

4. The bond strength pull-out tester according to claim 3, characterized in that, The synchronization drive includes: A connecting shaft (19) is rotatably disposed within the insertion frame (7), and both ends of the connecting shaft (19) are coaxially and fixedly connected to two second threaded rods (18); The first bevel gear (20) is sleeved on the outside of the connecting shaft (19) and is coaxially and fixedly connected to the connecting shaft (19); The second bevel gear (21) is rotatably disposed within the insertion frame (7) and meshes with the first bevel gear (20); The second motor (22) is installed in the insertion frame (7) and its output end is coaxially fixedly connected to the second bevel gear (21).

5. The bond strength pull-out tester according to claim 1, characterized in that, The insertion frame (7) has a removal groove (23) that cooperates with the side insertion connecting plate (9), and the removal groove (23) is located at one end near the first piercing part (8).

6. The bond strength pull-out tester according to claim 3, characterized in that, The length of the slot (17) is the same as the length of the side-insertion connecting plate (9).

7. The bond strength pull-out tester according to claim 2, characterized in that, The movable distance of the slide plate (11) in the slide groove (12) is the same as the length of the insertion frame (7), and one end of the first piercing part (8) is on the same horizontal plane as one end of the support plate (2).

8. The bond strength pull-out tester according to claim 1, characterized in that, The depth of the moving groove (6) is less than the thickness of the support plate (2).

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