A waterproofing membrane joint peel test apparatus

Abstract

The application relates to the field of coiled material detection equipment and discloses waterproof coiled material joint peelability detection equipment which comprises a lower clamp, the lower clamp comprising: a fixed disc located above a base; a rotating disc rotationally arranged on the fixed disc; a support frame fixedly connected between the fixed disc and the base; a central rotating column vertically rotationally arranged on the base; a driving assembly I used for driving the central rotating column to rotate; a spiral cylinder sleeved on the central rotating column; a driving assembly II used for driving the spiral cylinder to move vertically on the central rotating column; a left lower clamp plate and a right lower clamp plate used for clamping one end of one of the coiled materials in a detected sample; a bidirectional movement assembly used for driving the left lower clamp plate and the right lower clamp plate to move towards each other or move away from each other, and the spiral cylinder drives the bidirectional movement assembly to operate. The waterproof coiled material joint can be arbitrarily adjusted in a twist angle, and peelability strength detection can be carried out on the waterproof coiled material joint in a twisted state.

Description

Technical Field

[0001] This application relates to the field of roll material testing equipment, and more particularly to a device for testing the peelability of waterproof roll joints. Background Technology

[0002] To meet the requirements of construction techniques and waterproofing effects, different materials of polymer waterproof membranes are often used in different locations, resulting in joints between these membranes. There are various methods for treating these joints, such as using non-curing rubber asphalt waterproof coatings or cement-based adhesives. Regardless of the method, a joint peel test is required before the membrane is released to the market. In this test, two pieces of waterproof membrane are joined together and then partially separated. The tensile force sensor in the joint peel strength testing equipment measures the force separating the two membranes. The higher the measured joint peel strength, the stronger the adhesion between the materials.

[0003] However, during the implementation of the relevant technical solutions, at least the following technical problems were found: With the diversification of building structures, the parts requiring waterproofing membranes also exhibit diverse angles, which can cause the joints of the waterproof membranes to be in a twisted state. Currently, the peel strength testing equipment for waterproof membrane joints only tests the peel strength of two pieces of waterproof membrane at vertical angles and 180 degrees. There is an urgent need for a device that can test the peel strength of waterproof membrane joints in a twisted state. Summary of the Invention

[0004] This application provides a waterproof membrane joint peelability testing device, which solves the technical problem that existing waterproof membrane joint peelability testing devices cannot perform peelability testing on waterproof membrane joints in a twisted state. It realizes that the twisting angle of the waterproof membrane joint can be arbitrarily adjusted, and the peelability strength of the waterproof membrane joint in a twisted state can be tested.

[0005] This application provides a device for testing the peelability of waterproof membrane seams, including a lower clamp mounted on a base. The lower clamp includes: a fixed plate, horizontally positioned above the base; a rotating plate, rotatably mounted on the upper surface of the fixed plate; a support frame, fixedly connected between the fixed plate and the base; a central rotating column, vertically rotatably mounted on the base, with its rotation axis passing through the center of the rotating plate, and a connecting rod fixedly connected between the top of the central rotating column and the rotating plate; a first drive assembly, mounted on the base, for driving the central rotating column to rotate; a spiral cylinder, sleeved on the central rotating column; a second drive assembly, mounted on the support frame, for driving the spiral cylinder to move vertically on the central rotating column; a lower left clamp and a lower right clamp for clamping one end of one piece of membrane in the sample to be tested; and a bidirectional moving assembly, mounted on the rotating plate, for driving the lower left clamp and the lower right clamp to move closer or further apart, with the spiral cylinder driving the bidirectional moving assembly to operate.

[0006] Furthermore, the drive assembly includes: a gear one, coaxially connected to the central rotating column and located below the spiral cylinder; a gear two, rotatably mounted on the base and meshing with the gear one; and a drive motor one, mounted on the base and used to drive the gear two to rotate.

[0007] Furthermore, the second drive assembly includes: a helical gear, rotatably mounted on the support frame and meshing with the spiral cylinder; a worm, vertically rotatably mounted on the base; a worm wheel, meshing with the worm and coaxially connected with the helical gear; and a second drive motor, mounted on the base and used to drive the worm to rotate.

[0008] Furthermore, the bidirectional moving assembly includes: two frame plates, each located on one side of the spiral cylinder, the frame plates being fixed to the upper surface of the rotating disk; a bidirectional lead screw, rotatably disposed between the two frame plates; a helical gear, coaxially connected to the middle position of the bidirectional lead screw and meshing with the spiral cylinder; two movable nut seats, each threaded onto one side of the bidirectional lead screw; and vertical extension rods, each vertically fixed to one of the movable nut seats on both sides, the top of the vertical extension rods being higher than the top of the central rotating column, and the lower left clamping plate and the lower right clamping plate being respectively installed on the top of the two vertical extension rods.

[0009] Furthermore, the bidirectional moving assembly also includes: a guide rail, fixed between the two side plates; two sliders, both slidably connected to the guide rail, each slider having a vertically fixed vertical extension rod, and the lower left clamping plate and the lower right clamping plate being connected to the top of the vertical extension rods on the two sliders.

[0010] Furthermore, each of the vertical extension rods has an insertion hole on its top surface, and the bottom surfaces of the lower left clamping plate and the lower right clamping plate are fixed with a first insertion rod, which is interference-fitted with the insertion hole.

[0011] Furthermore, it also includes a horizontal clamp for clamping both ends of one of the rolls of material in the sample being tested. The horizontal clamp includes: a horizontal plate, which is horizontally set and used to place the roll of material to be tested; two insertion rods, which are vertically fixed to the bottom surface of the horizontal plate. The insertion rods are interference-fitted with the insertion holes. There are three insertion rods, two of which are inserted into the insertion holes on the top surface of the vertical extension rods on the two sliders, and the other insertion rod is inserted into the insertion hole on the top surface of the vertical extension rod on one of the movable nut seats; and two upper clamping plates, which are respectively installed at both ends of the horizontal plate. The upper clamping plates are used to press down and clamp the ends of the roll of material to be tested.

[0012] Furthermore, the diameter of the fixed disk is larger than the diameter of the rotating disk, and scale lines are engraved on the edge of the upper surface of both the fixed disk and the upper surface of the rotating disk.

[0013] One or more technical solutions provided in this application have at least the following technical effects or advantages: Driven by the second drive component, the spiral cylinder moves up and down, which in turn drives the bidirectional moving component. The bidirectional moving component allows the lower left and lower right clamping plates to come together, thus clamping the tested roll material. Then, the first drive component drives the central rotating column to rotate, which in turn rotates the rotating disk, thereby twisting the roll material held between the lower left and lower right clamping plates at an angle. By observing the scale lines on the rotating disk and the fixed disk, the start and stop of the start motor can be controlled, thereby adjusting the twisting angle of the roll material. This allows for the detection of the peel strength of the waterproof roll joint at different twisting angles. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the waterproof membrane joint peelability testing equipment in the embodiments of this application; Figure 2 This is a schematic diagram of the overall structure of the lower clamp in the embodiment of this application; Figure 3 for Figure 2 Another perspective view, mainly illustrating another part of the construction of the bidirectional motion component; Figure 4 This is the connection structure between the lower left and lower right clamping plates and the vertical extension rod in the embodiments of this application; Figure 5 This is a schematic diagram of the structure of the horizontal clamp in the embodiments of this application; In the diagram: 1. Base; 2. Lower clamp; 21. Fixed plate; 22. Rotary plate; 23. Support frame; 24. Central rotating column; 241. Connecting rod; 25. Drive assembly one; 251. Gear one; 252. Gear two; 253. Drive motor one; 26. Screw cylinder; 27. Drive assembly two; 271. Helical gear one; 272. Worm; 273. Worm wheel; 274. Drive motor two; 281. Lower left clamp; 282. Lower right clamp 2801, Insert rod one; 29, Bidirectional moving assembly; 291, Frame plate; 292, Bidirectional lead screw; 293, Helical tooth two; 294, Moving nut seat; 295, Vertical extension rod; 2951, Insertion hole; 296, Guide rail; 297, Slider; 3, Horizontal clamp; 31, Horizontal plate; 32, Insert rod two; 33, Upper clamp; 4, Lead screw lifting column; 5, Crossbeam rod; 6, Upper clamp; 7, Tension sensor; 8, Data control terminal. Detailed Implementation

[0015] To better understand the technical solution of this application, the technical solution of this application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Reference Figure 1 A device for testing the peel strength of waterproof membrane joints includes a base 1, a lower clamp 2, a screw lifting column 4, a crossbeam 5, an upper clamp 6, a tension sensor 7, and a data control terminal 8. Screw lifting columns 4 are installed on both sides of the base 1. The crossbeam 5 is installed between the two screw lifting columns 4, and the screw lifting columns 4 can drive the crossbeam 5 to move up and down. The lower clamp 2 is installed on the base 1 and located between the two screw lifting columns 4. The upper clamp 6 is installed on the crossbeam 5 and located directly above the lower clamp 2. The tension sensor 7 is installed on the upper clamp 6 and is used to acquire the tension data of the upper clamp 6 pulling the lower clamp 2. The data control terminal 8 is used to acquire the data from the tension sensor 7 and to calculate the peel strength of the joint.

[0017] Reference Figure 2The lower clamp 2 includes a fixed plate 21, a rotating plate 22, a support frame 23, a central rotating column 24, a first drive assembly 25, a spiral cylinder 26, a second drive assembly 27, a lower left clamping plate 281, a lower right clamping plate 282, and a bidirectional moving assembly 29. The fixed plate 21 is horizontally positioned above the base 1. The rotating plate 22 is rotatably mounted on the upper surface of the fixed plate 21. The diameter of the fixed plate 21 is larger than the diameter of the rotating plate 22. Scale lines are engraved on the edges of the upper surfaces of both the fixed plate 21 and the rotating plate 22, allowing for accurate observation of the rotation angle of the rotating plate 22 on the fixed plate 21. The support frame 23 is fixed between the fixed plate 21 and the base 1, supporting the fixed plate 21 and providing a certain space between them. A central rotating column 24 is vertically mounted on the base 1. The axis of rotation of the central rotating column 24 passes through the center of the rotating disk 22 and the fixed disk 21. The top of the central rotating column 24 passes through the rotating disk 22, and there is a certain gap between the top of the central rotating column 24 and the rotating disk 22. A connecting rod 241 is fixedly connected between the top of the central rotating column 24 and the upper surface of the rotating disk 22. The connecting rod 241 is L-shaped, and there are two connecting rods 241 located on both sides of the central rotating column 24. Thus, when the central rotating column 24 rotates, the rotating disk 22 also rotates. A spiral cylinder 26 is sleeved on the central rotating column 24. The outer surface of the spiral cylinder 26 is spiral-patterned. The spiral cylinder 26 can freely rotate circumferentially and move up and down on the central rotating column 24. One end of the spiral cylinder 26 is located above the rotating disk 22, and the other end is located below the fixed disk 21.

[0018] Continue to refer to Figure 2 The drive assembly 25 is mounted on the base 1 and includes a gear 251, a gear 252, and a drive motor 253. The diameter of gear 251 is larger than that of gear 252. Gear 251 is coaxially connected to the central rotating column 24 and located below the bottom of the spiral cylinder 26. Gear 252 is rotatably mounted on the upper surface of the base 1 and meshes with gear 251. The drive motor 253 is mounted on the lower surface of the base 1, and its output shaft is coaxially connected to the rotating shaft of gear 252. The drive motor 253 is controlled by the data control terminal 8. When the drive motor 253 starts, it drives gear 252 to rotate, which in turn drives gear 251 to rotate, and gear 251 drives the central rotating column 24 to rotate.

[0019] Continue to refer to Figure 2The second drive assembly 27 includes a helical gear 271, a worm gear 272, a worm wheel 273, and a second drive motor 274. Helical gear 271 is rotatably mounted on support frame 23 and meshes with screw cylinder 26; worm 272 is vertically mounted, with its bottom rotatably mounted on the upper surface of base 1 and its top rotatably mounted on the lower surface of fixed disk 21. Worm 272 and gear 252 are located on opposite sides of central rotating column 24; worm wheel 273 meshes with worm 272 and is coaxially connected to helical gear 271; drive motor 274 is mounted on the lower surface of base 1, with its output shaft coaxially connected to the rotation shaft of worm 272. Drive motor 274 is controlled by data control terminal 8. Since worm 272 and gear 252 are located on opposite sides of central rotating column 24, drive motor 274 and drive motor 253 have sufficient space on base 1 for installation and will not interfere with each other. When the drive motor 274 starts, it can drive the worm 272 to rotate. The rotation of the worm 272 can drive the worm wheel 273 to rotate. The rotation of the worm wheel 273 can drive the helical gear 271 to rotate. The forward and reverse rotation of the helical gear 271 can make the spiral cylinder 26 move up and down.

[0020] Reference Figure 2 , Figure 3 as well as Figure 4 As shown, the bidirectional moving assembly 29 is mounted on the rotating disk 22. The bidirectional moving assembly 29 includes a frame plate 291, a bidirectional lead screw 292, a helical gear 293, a movable nut seat 294, a vertical extension rod 295, a guide rail 296, and a slider 297. The frame plate 291 is a U-shaped plate, and two frame plates 291 are provided, located on both sides of the central rotating column 24. The frame plates 291 are located at the edge of the rotating disk 22. The bidirectional lead screw 292 is horizontally arranged and rotatably positioned between the two frame plates 291. The helical gear 293 is coaxially connected to the middle of the bidirectional lead screw 292 and meshes with the screw cylinder 26. Two movable nut seats 294 are provided, symmetrically arranged on both sides of the helical gear 293. Both movable nut seats 294 are connected to the bidirectional lead screw 292. The screw 292 is threadedly connected to the guide rail 296, which is horizontally set and fixed between the two side plates 291. The guide rail 296 and the bidirectional screw 292 are located on both sides of the central rotating column 24. There are two sliders 297, which are slidably connected to the guide rail 296. Each slider 297 and each movable nut seat 294 are vertically fixed with a vertical extension rod 295. The top of the vertical extension rod 295 is higher than the top of the central rotating column 24. Each vertical extension rod 295 has an insertion hole 2951 on its top surface.

[0021] Continue to refer to Figure 4As shown, two insertion rods 2801 are fixed to the bottom surfaces of both the lower left clamping plate 281 and the lower right clamping plate 282. The insertion rods 2801 are interference-fitted with the insertion holes 2951. The two insertion rods 2801 on the bottom surface of the lower left clamping plate 281 are respectively inserted into the vertical extension rods 295 on one of the sliders 297 and one of the movable nut seats 294. The two insertion rods 2801 on the bottom surface of the lower right clamping plate 282 are respectively inserted into the vertical extension rods 295 on another slider 297 and another movable nut seat 294.

[0022] Drive component 27 moves the spiral cylinder 26 up or down, which in turn rotates the helical gear 293 in the bidirectional moving component 29. The rotation of the helical gear 293 rotates the bidirectional lead screw 292. The forward and reverse rotation of the bidirectional lead screw 292 causes the moving nut seats 294 on both sides to move closer or further apart, thereby causing the lower left clamping plate 281 and the lower right clamping plate 282 to move closer or further apart. The closer movement of the lower left clamping plate 281 and the lower right clamping plate 282 can clamp the waterproof membrane, and the further movement of the lower left clamping plate 281 and the lower right clamping plate 282 can release the clamping of the waterproof membrane.

[0023] Reference Figure 5 A horizontal clamp 3 can also be installed on the bidirectional moving assembly 29. The horizontal clamp 3 includes a horizontal plate 31, a second insertion rod 32, and an upper clamping plate 33. The horizontal plate 31 is a strip plate and is set horizontally. The length direction of the horizontal plate 31 is consistent with the length direction of the guide rail 296. There are three second insertion rods 32. All three second insertion rods 32 are vertically fixed to the bottom surface of the horizontal plate 31. The second insertion rods 32 are interference-fitted with the insertion holes 2951 on the vertical extension rods 295. Two of the three second insertion rods 32 are respectively inserted into the insertion holes 2951 on the top surface of the vertical extension rods 295 on the two sliders 297. The other one is inserted into the insertion hole 2951 on the top surface of the vertical extension rods 295 on one of the moving nut seats 294. Thus, the horizontal plate 31 can move along the guide rail 296. There are two upper clamping plates 33, which are respectively installed at both ends of the horizontal plate 31. The upper clamping plates 33 are used to press down and clamp the end of the tested roll material. When it is necessary to perform a vertical seam peel test on the tested roll material, the lower left clamp 281 and lower right clamp 282 on the original vertical extension rod 295 can be removed, and then the horizontal clamp 3 can be installed so that the horizontal clamp 3 can move freely on the guide rail 296.

[0024] The functional principle of this application can be explained through the following methods: When inspectors need to perform peel strength testing on a waterproof membrane joint under torsion, one end of one section of the membrane can be placed between the lower left clamp 281 and the lower right clamp 282. The data control terminal 8 starts the second drive motor 274, which drives the second drive assembly 27. The second drive assembly 27 moves the spiral cylinder 26 up and down, thereby driving the bidirectional moving assembly 29. The bidirectional moving assembly 29 allows the lower left clamp 281 and the lower right clamp 282 to come closer together, thus clamping the membrane under test. The end of the other section of the waterproof membrane joint can be clamped by the upper clamp 6. End 8 controls the screw lifting column 4 to lift the crossbeam 5, so that the two rolls of material are in a 180-degree position. Then, the data control terminal 8 starts the drive motor 253, which drives the drive assembly 25 to rotate. The drive assembly 25 drives the central rotating column 24 to rotate. The rotation of the central rotating column 24 causes the rotating disk 22 to rotate, thereby twisting the roll of material held between the lower left clamping plate 281 and the lower right clamping plate 282. The start and stop of the motor are controlled by observing the scale lines on the rotating disk 22 and the fixed disk 21, so that the twisting angle of the roll of material can be adjusted. In addition, the peel strength of the waterproof roll joint can be detected under different twisting angles.

[0025] Furthermore, when it is necessary to test the peel strength of two rolls at a vertical angle, the lower left clamp 281 and lower right clamp 282 on the original vertical extension rod 295 can be removed, and the horizontal clamp 3 can be fixedly installed on the vertical extension rod 295 on the two sliders 297 and the vertical extension rod 295 on one of the movable nut seats 294. This allows the horizontal clamp 3 to move freely on the guide rail 296. Therefore, when the upper clamp 6 pulls the roll, the horizontal clamp 3 moves under force, and the two rolls can peel off on the horizontal clamp 3.

[0026] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0027] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A device for testing the peelability of waterproof membrane joints, comprising a lower clamp (2) mounted on a base (1), characterized in that, The lower clamp (2) includes: A fixed plate (21) is horizontally positioned above the base (1); A rotating disk (22) is rotatably mounted on the upper surface of the fixed disk (21); The support frame (23) is fixed between the fixed plate (21) and the base (1); A central rotating column (24) is vertically rotatably mounted on the base (1), and its rotation axis passes through the center of the rotating disk (22). The top of the central rotating column (24) passes through the rotating disk (22) and is fixedly connected to the rotating disk (22) by a connecting rod (241). Drive component 1 (25) is mounted on the base (1) and is used to drive the central rotating column (24) to rotate; The spiral cylinder (26) is fitted onto the central rotating column (24); Drive component two (27) is installed on the support frame (23) and is used to drive the spiral cylinder (26) to move vertically on the central rotating column (24); The lower left clamp (281) and the lower right clamp (282) are used to clamp one end of one of the rolls of material in the sample being tested. The bidirectional moving component (29) is installed on the rotating disk (22) and is used to drive the lower left clamping plate (281) and the lower right clamping plate (282) to move closer to each other or further apart. The spiral cylinder (26) drives the bidirectional moving component (29) to rotate. The bidirectional movement component (29) includes: The frame plate (291) is provided in two pieces and is located on both sides of the spiral cylinder (26). The frame plate (291) is fixed to the upper surface of the rotating disk (22). A two-way lead screw (292) is rotatably mounted between the two side plates (291); The second helical tooth (293) is coaxially connected to the middle position of the bidirectional lead screw (292) and meshes with the spiral cylinder (26); There are two movable nut seats (294), which are threaded onto both sides of the bidirectional lead screw (292); The vertical extension rod (295) is vertically fixed to the movable nut seat (294) on both sides. The top of the vertical extension rod (295) is higher than the top of the central rotating column (24). The lower left clamping plate (281) and the lower right clamping plate (282) are respectively installed on the top of the vertical extension rod (295) on both sides. The guide rail (296) is fixed between the two side panels (291); There are two sliders (297), both of which are slidably connected to the guide rail (296). Each slider (297) is vertically fixed with the vertical extension rod (295). The lower left clamp (281) and the lower right clamp (282) are both connected to the top of the vertical extension rod (295) on the two sliders (297).

2. The waterproof membrane joint peelability testing device as described in claim 1, characterized in that, The drive component one (25) includes: Gear 1 (251) is coaxially connected to the central rotating column (24) and located below the spiral cylinder (26); Gear 2 (252) is rotatably mounted on the base (1) and meshes with gear 1 (251); Drive motor one (253) is mounted on the base (1) and is used to drive gear two (252) to rotate.

3. The waterproof membrane joint peelability testing device as described in claim 1, characterized in that, The second driving component (27) includes: Helical tooth 1 (271) is rotatably mounted on the support frame (23) and meshes with the spiral cylinder (26); The worm gear (272) is vertically rotatably mounted on the base (1); The worm gear (273) meshes with the worm (272) and is coaxially connected with the helical gear (271); Drive motor 2 (274) is mounted on the base (1) and is used to drive the worm (272) to rotate.

4. The waterproof membrane joint peelability testing device as described in claim 1, characterized in that, Each of the vertical extension rods (295) has a socket (2951) on its top surface. The bottom surfaces of the lower left clamp (281) and the lower right clamp (282) are fixed with a first insertion rod (2801). The first insertion rod (2801) and the socket (2951) are interference fit.

5. The waterproof membrane joint peelability testing device as described in claim 4, characterized in that, It also includes a horizontal clamp (3) for clamping both ends of one of the rolls of material in the sample being tested, the horizontal clamp (3) comprising: A horizontal plate (31) is set horizontally and used to place the roll material to be tested. Insert rod 2 (32) is vertically fixed to the bottom surface of the horizontal plate (31). Insert rod 2 (32) is interference-fitted with the insertion hole (2951). There are three insert rods 2 (32). Two of the insert rods 2 (32) are inserted into the insertion holes (2951) on the top surface of the vertical extension rods (295) on the two sliders (297), and the other insert rod 2 (32) is inserted into the insertion hole (2951) on the top surface of the vertical extension rod (295) on one of the movable nut seats (294). There are two upper clamping plates (33) respectively installed at both ends of the horizontal plate (31). The upper clamping plates (33) are used to press down and clamp the end of the roll material being tested.

6. The waterproof membrane joint peelability testing device as described in claim 1, characterized in that, The diameter of the fixed disk (21) is larger than the diameter of the rotating disk (22), and scale lines are engraved on the edge of the upper surface of the fixed disk (21) and the edge of the upper surface of the rotating disk (22).

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