A device for detecting the adhesion of a paper gypsum board

Abstract

The application discloses a paper-faced gypsum board adhesion detection device and relates to the technical field of detection equipment. After the paper-faced gypsum board is cut, one end of the paper-faced gypsum board is fixed by using a clamp, and then the firmness of the combination of the facing paper and the core material is determined by gradually and continuously applying a load to the other end of the paper-faced gypsum board. The adhesion of the paper-faced gypsum board is reflected by the load borne by the paper-faced gypsum board when the facing paper is torn off. The technical effect of efficient and accurate detection of the adhesion of the paper-faced gypsum board is achieved.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a device for testing the adhesion of paper-faced gypsum board. Background Technology

[0002] Paper-faced gypsum board is a building board made primarily of building gypsum, with appropriate additives added. After being mixed with water, it is poured between the face paper and backing paper and firmly bonded together. To verify the quality of paper-faced gypsum board products, it is necessary to test the areal density, breaking load, hardness, impact resistance, adhesion between the face paper and the core material, water absorption rate, fire stability, and moisture deflection of the paper-faced gypsum board specimen (sample 001) to determine whether it meets the national standards.

[0003] Testing the adhesion between the facing paper and the core material requires a paper-faced gypsum board adhesion testing device; such as... Figure 2 As shown, in the prior art, the paper-faced gypsum board adhesion testing device includes a carrier plate 010 that bears the load, a vertical positioning rod 020 positioned on the top of the carrier plate 010, an inclined base clamp 030 located on the vertical positioning rod 020, an extension clamp 040, and multiple weights 050 that are detachably hung on the extension clamp 040. When conducting adhesion tests between the face paper and the core material, such as Figure 3 and Figure 4 As shown, a slit needs to be cut on template 001 without damaging the facing paper on the other side (for template 001 used to measure the adhesion between the facing paper and the core material, the slit 002 is on the back of template 001; for template 001 used to measure the adhesion between the backing paper and the core material, the slit 002 is on the front of template 001). Then, template 001 is fixed on the base fixture 030 of the gypsum board adhesion testing device; at the end of template 001 bent along the slit 002... With the expansion clamp 040 fixed in place, and the face paper still adhered, the template 001 is broken off along the cut 002. Then, weights 050 are placed on the expansion clamp 040 one after another until the face paper is torn off. If the face paper and the core material are separated, it is determined that the face paper is peeled off from the core material. Otherwise, it is not peeled off. Record the adhesion status of the face paper and back paper of multiple templates 001 to the core material to obtain the result of the adhesion between the face paper and the core material.

[0004] While the above method can obtain the adhesion data of paper-faced gypsum board, it requires applying load by gradually adding weights 050 to the extension fixture 040. The continuity of load application is poor, and non-uniform and continuous load application can easily affect the accuracy of the test results. In addition, the entire load application process requires frequent manual intervention, which is tedious and labor-intensive. Furthermore, the accuracy of the adhesion data obtained by adding weights 050 one by one is also poor because the size of the weights 050 is a fixed value.

[0005] Therefore, there is a need for a paper-faced gypsum board adhesion testing device that can apply stable and continuous loads to a template, is easy to use, and provides accurate results. Summary of the Invention

[0006] This application provides a paper-faced gypsum board adhesion testing device, which solves the technical problems of existing paper-faced gypsum board adhesion testing devices, such as discontinuous loads applied to the sample due to their own structural limitations, frequent manual intervention required during use, complex process, high labor intensity, and poor accuracy. It achieves the technical effect of enabling the paper-faced gypsum board adhesion testing device to apply stable and continuous loads to the sample, being easy to use, and providing accurate results.

[0007] This application provides a paper-faced gypsum board adhesion testing device, including a carrier plate, a vertical positioning rod, a basic clamp, and an extension clamp, characterized in that it further includes a counterweight belt assembly; The counterweight belt assembly includes a support frame, a winding and unwinding drum, and a counterweight belt body; The support frame is located on one side of the vertical positioning rod; the sample to be tested is located between the vertical positioning rod and the support frame; The take-up and unwinding drum is positioned on the support frame; The counterweight belt is a rectangular belt or chain made of metal or non-metal, which applies a load to the template by its own weight. One end is positioned at the bottom of the extension fixture, and the other end is wound and positioned on the take-up and unwinding drum. When the take-up and undo drum rotates, the amount of counterweight belt between the extension clamp and the take-up and undo drum can be increased or decreased.

[0008] Furthermore, the carrier plate is arranged horizontally and positioned on the ground or on the experimental table; The vertical positioning rod is set vertically and positioned at the top of the carrier plate; The basic clamp is an inclined electric or manual clamp; The template, which is clamped and fixed on the base fixture, is set at an angle with its top surface facing upwards. The end of the template away from the cut is clamped and fixed by the base fixture. The expansion clamp is an electric or manual clamp, and is set vertically when performing adhesion testing; the end of the template closest to the cut is clamped and fixed by the expansion clamp; The fixing points of the basic fixture and the extension fixture on the template are located near the ends of the top and bottom surfaces of the template.

[0009] Furthermore, the counterweight belt is composed of multiple belt segments spliced ​​together, with different weights per unit length for different belt segments.

[0010] Preferably, the counterweight belt assembly further includes an extension drum and guide wheels; The extension drum is positioned on the support frame and above the take-up and unwinding drum; The guide wheel is positioned at the bottom of the extension clamp; One end of the counterweight belt is wound and positioned on the take-up and unwinding drum, and the other end is wound and positioned on the extension drum, passing through the gap between the guide wheel and the extension clamp.

[0011] Preferably, it also includes a clamping and shifting component and an adsorption and positioning component; The clamping and shifting assembly includes a positioning telescopic rod and a rod head clamp; The positioning telescopic rod is inclined, and the non-telescopic end is fixed on the vertical positioning rod. Its length direction is the same as the length direction of the sample being measured. The rod head clamp is an electric or manual clamp, fixed to the telescopic end of the positioning telescopic rod; Both the basic clamp and the extended clamp are electric clamps; The surface of the extension fixture away from the vertical positioning rod is positioned with a ferromagnetic adsorption body and a positioning body that is a protrusion or groove; The adsorption positioning component includes an adsorption positioning block and a block carrier; The adsorption positioning block is located above the extension clamp, has a built-in electromagnet, and is fixed to the vertical positioning rod by the block frame.

[0012] Preferably, the basic fixture includes a support frame, a first telescopic pressure plate, a second telescopic pressure plate, and a pressure plate displacement assembly; The supporting frame is a U-shaped rigid tube, inclined, with its axis the same as the axis of the clamping and shifting component, and positioned on a vertical positioning rod. The first telescopic pressure plate and the second telescopic pressure plate are both rigid plates that are inclined. They are arranged opposite each other and are located in the space enclosed by the supporting frame. Their opposite surfaces are flat. They move closer to each other or further away from each other under the action of the pressure plate shifting component.

[0013] Preferably, the extension clamp is fixed to the template and includes a frame and a third pressure plate; the frame is a U-shaped rigid tube that is vertical during testing; the third pressure plate is a vertically arranged rigid plate located in the space enclosed by the frame, which moves closer to the inner wall of the frame under the action of the electric telescopic rod to clamp and fix the template.

[0014] Preferably, it also includes a location monitoring component; The location monitoring component is signal-connected to the control unit and includes an infrared transmitter and multiple infrared receivers; The infrared emitter is positioned on the surface of the extension clamp near the vertical positioning rod; The infrared receivers are positioned on the surface of the vertical positioning rod near the extension clamp and are arranged in a row; During use, the signal received by the infrared receiver determines whether the adhesive surfaces of the faceplate and the core material have separated and to what extent.

[0015] Preferably, it also includes a template feeding assembly; The template feeding assembly includes an inclined box and a built-in lifting plate; The inclined box is a rigid box with an opening at the top, fixed to a vertical positioning rod, and used to hold untested samples. When the positioning telescopic rod is retracted, the inclined box is located between the positioning telescopic rod and the base clamp; The built-in lifting plate is positioned inside the inclined box and moves along the length of the inclined box; the top of the side wall of the inclined box is provided with two side grooves, which are respectively set near the positioning telescopic rod and the base clamp, for the positioning telescopic rod to pass through.

[0016] Preferably, it also includes a positioning ring carrier, an outer positioning ring, and a ring body rotation drive assembly; The positioning ring carrier is a rigid circular ring, which is inclined and fixed on a vertical positioning rod; The outer positioning ring is a rigid circular ring, which is sleeved and fixed on the supporting frame; the outer positioning ring is rotatably connected to the positioning ring carrier, and the two are coaxial. Under the drive of the ring rotation drive component, it rotates to realize the flipping of the template. The block carrier is rotatably connected to the vertical positioning rod and rotates under the coordinated control of the control unit and the power component, thereby allowing the adsorption positioning block to flip up in a timely manner and thus avoid obstructing the flipping of the basic fixture and the positioning template.

[0017] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: By optimizing and improving the structure of existing paper-faced gypsum board adhesion testing devices, a counterweight belt wound on a drum is used to apply load to the sample instead of weights. The winding drum is located on a support frame on one side of a vertical positioning rod. One end of the counterweight belt is wound and positioned on the winding drum, and the other end is positioned on an extension clamp. During use, the load applied to the sample is flexibly adjusted by controlling the rotation of the winding drum to wind and unwind the counterweight belt. This effectively solves the technical problems of existing paper-faced gypsum board adhesion testing devices, such as discontinuous load applied to the sample due to structural limitations, frequent manual intervention required during use, complex process, high labor intensity, and poor accuracy. Thus, the paper-faced gypsum board adhesion testing device can apply a stable and continuous load to the sample, is easy to use, and provides accurate results. Attached Figure Description

[0018] Figure 1This is a simplified structural diagram of the paper-faced gypsum board adhesion testing device of this application; Figure 2 A simplified structural diagram of a prior art paper-faced gypsum board adhesion testing device; Figure 3 This is a schematic diagram showing the layout of the seams on the template; Figure 4 A schematic diagram illustrating the changing states of the sample during the breaking process; Figure 5 A schematic diagram showing the layout of the graduations on the counterweight belt; Figure 6 A schematic diagram showing the positional relationship between the take-up / unwinding drum and the extension drum; Figure 7 A schematic diagram showing the positional relationship between the basic fixture and the extended fixture; Figure 8 This is a schematic diagram showing the positional relationship between the supporting frame and the carrier frame; Figure 9 This is a schematic diagram showing the layout relationship of multiple cuts on a template; Figure 10 This is a schematic diagram showing the positional relationship between the frame, the inner pads of the frame, the wheel support, and the guide wheel. Figure 11 A simplified diagram of the internal structure of the basic fixture and the extended fixture; Figure 12 This is a schematic diagram showing the positional relationship of the sample feeding components; Figure 13 This is a schematic diagram of the sample feeding assembly. Figure 14 This is a schematic diagram showing the positional relationship between the positioning ring carrier, the outer positioning ring, and the supporting frame.

[0019] In the picture: Template 001, Cutting 002, Carrier Plate 010, Vertical Positioning Rod 020, Positioning Ring Carrier 021, Extension Frame 022, Basic Fixture 030, Extension Fixture 040, Weight 050, Support Frame 110, Winding Drum 120, Counterweight Belt 130, Extension Drum 140, Guide Wheel 150, Guide Wheel Carrier 151, Positioning Telescopic Rod 210, Rod Head Clamp 220, Bearing Frame 310, First Telescopic pressure plate 320, second telescopic pressure plate 330, pressure plate shifting assembly 340, outer positioning ring 350, frame 410, inner pad block 420, third pressure plate 430, wheel support body 440, adsorption body 450, positioning body 460, position monitoring assembly 470, adsorption positioning block 510, built-in adsorption body 511, block frame 520, inclined box body 610, side groove 611, built-in lifting plate 620. Detailed Implementation

[0020] For the convenience of understanding the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs; the terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] Embodiment 1

[0024] As Figures 1 to 4 shown, the device for detecting the bonding property of the paper-faced gypsum board of the present application includes a carrier plate 010, a vertically arranged positioning rod 020, a basic fixture 030, an extended fixture 040, a counterweight belt assembly, a power assembly and a control unit.

[0025] The carrier plate 010 is a horizontally arranged rigid plate body, positioned on the ground or the experimental table, and plays a role of bearing and supporting.

[0026] The vertically arranged positioning rod 020 is a vertically arranged rigid rod body, positioned on the top of the carrier plate 010, and is used to bear and position the basic fixture 03

[0027] The basic fixture 030 plays a role of clamping and fixing the sample 001, and is an electric or manual fixture arranged obliquely; the sample 001 clamped and fixed on the basic fixture 030 is arranged obliquely, with the top surface facing obliquely upward, and one end of the sample 001 far from the cut 002 is clamped and fixed by the basic fixture 030; the combination of the sample 001 and the vertically arranged positioning rod 020 is in the shape of "卜".

[0028] The extended fixture 040 is an electric or manual fixture, and is arranged vertically during the bonding property detection; one end of the sample 001 close to the cut 002 is clamped and fixed by the extended fixture 040.

[0029] The fixing points of the basic fixture 030 and the extended fixture 040 on the sample 001 are located at the positions close to the ends of the top surface and the bottom surface of the sample 001.

[0030] The counterweight belt assembly is used to apply a stable and continuous load to the measured sample 001, and includes a support frame 110, a winding drum 120, and a counterweight belt body 130. The support frame 110 is a vertically arranged rigid frame located on one side of the vertical positioning rod 020; the test sample 001 is located between the vertical positioning rod 020 and the support frame 110. The take-up and unwinding drum 120 is a horizontally arranged rigid drum, positioned on the support frame 110, and rotates under the coordinated control of the power component and the control unit; The counterweight belt 130 is a rectangular belt or chain made of metal or non-metal, which applies a load to the template 001 by its own weight. One end of the counterweight belt 130 is positioned at the bottom of the extension clamp 040, and the other end is wound and positioned on the take-up and unwinding drum 120. When the take-up and unwinding drum 120 rotates, the amount of counterweight belt 130 between the extension clamp 040 and the take-up and unwinding drum 120 is increased or decreased.

[0031] The power assembly is used to provide power for the operation of the take-up and unwind drum 120, and the control unit is used to control the operation of the take-up and unwind drum 120. Both are existing technologies and will not be described in detail here.

[0032] Preferably, the control unit is a combination of a programmable logic controller and control buttons.

[0033] Furthermore, the template 001, which is clamped and positioned by the basic fixture 030 and is in an unbroken state, forms an angle of 45 degrees with the horizontal ground.

[0034] Furthermore, the template 001 is 120 mm long and 50 mm wide, the length direction of the slit 002 is the same as the width direction of the template 001, and the slit 002 is 20 mm away from the end of the template 001.

[0035] Preferred, such as Figure 5 As shown, the counterweight belt 130 is provided with a scale, and the load applied to the template 001 can be read in real time through the scale on the counterweight belt 130.

[0036] Furthermore, the basic fixture 030 is slidably positioned on the vertical positioning rod 020 and fixed as needed.

[0037] Furthermore, the counterweight belt 130 is composed of multiple belt segments spliced ​​together, with different weights per unit length of different belt segments.

[0038] Preferably, the portion of the counterweight belt 130 closest to the extension clamp 040 is heavier; the markings on the counterweight belt 130 are divided according to weight.

[0039] Furthermore, to improve applicability, the support frame 110 is a telescopic rod structure, which can raise the height of the winding and unwinding drum 120 as needed.

[0040] Furthermore, the support frame 110 is slidably positioned on the carrier plate 010, and when the support frame 110 is slidably moved, it can be brought closer to or away from the vertical positioning rod 020.

[0041] When using the paper-faced gypsum board adhesion testing device of this application embodiment: A slit needs to be cut on the template 001 without damaging the protective paper on the other side. Then, fix the template 001 on the base clamp 030 of the paper-faced gypsum board adhesion testing device. Fix the extension clamp 040 at the end of the template 001 that is bent along the slit 002. While keeping the protective paper still attached, break the template 001 along the slit 002 (it is optional to break it here; the template 001 can also be pulled off along the slit 002 by the weight of the extension clamp 040 and the counterweight belt 130). The extension clamp 040 is kept vertical; then the control unit controls the winding drum 120 to rotate, thereby gradually releasing the counterweight belt 130; during this process, if the adhesive surfaces of the face paper and the core material separate, it is determined that the face paper is peeling off from the core material, otherwise it is not peeling off; the load applied to the sample 001 is known based on the release amount of the counterweight belt 130; the adhesion between the face paper and back paper and the core material of multiple sets of samples 001 is recorded to obtain the result of the adhesion between the face paper and the core material.

[0042] Preferably, to further improve the accuracy of the measured data, the amount of counterweight belt 130 that can be accommodated between the extension clamp 040 and the take-up / unwind drum 120 is increased; such as Figure 6 As shown, the counterweight belt assembly also includes an extension drum 140 and a guide wheel 150; the extension drum 140 is a drum structure controlled by a control unit, positioned on the support frame 110 and above the take-up and release drum 120, used for winding and releasing the counterweight belt body 130; the bottom of the extension clamp 040 is positioned with a guide wheel frame 151 for supporting the positioning guide wheel 150; the guide wheel frame 151 is a rigid frame; the guide wheel 150 is a horizontally placed cylindrical wheel, rotatably connected to the guide wheel frame 151 around its own axis; the counterweight belt body 130... One end of the counterweight belt is wound and positioned on the take-up and unwinding drum 120, and the other end is wound and positioned on the extension drum 140, passing through the gap between the guide wheel 150 and the extension clamp 040. During testing, the counterweight belt 130 is released by controlling one of the take-up and unwinding drums 120 and the extension drum 140 while the other takes up the counterweight belt 130 to adjust the amount of exposed counterweight belt 130. When taking the reading, the load is calculated based on the rotation of the two drums (the actual load is obtained by subtracting the reading from the scale value and adding the weight of the extension clamp 040 and its guide wheel 150 and guide wheel carrier 151).

[0043] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages: This invention solves the technical problems of existing paper-faced gypsum board adhesion testing devices, which suffer from discontinuous loads applied to the sample due to their structural limitations, frequent manual intervention required during use, complex processes, high labor intensity, and poor accuracy. It achieves the technical effect of enabling the paper-faced gypsum board adhesion testing device to apply stable and continuous loads to the sample, is easy to use, and provides accurate results.

[0044] Example 2

[0045] To further improve the practicality and applicability of this application, and to enhance the ease of use of the paper-faced gypsum board adhesion testing device, enabling it to automatically perform multiple measurements on a single sample 001, this application optimizes and improves the structure of the basic fixture 030 and the extended fixture 040 based on the above embodiments, and adds a clamping and shifting component and an adsorption and positioning component, specifically: like Figures 7 to 10 As shown, the clamping and shifting assembly is used to fix and move the template 001 in a timely manner, including a positioning telescopic rod 210 and a rod head clamp 220; the positioning telescopic rod 210 is an inclined rigid telescopic rod that extends and retracts under the coordinated control of the control unit and the power assembly, and the non-telescopic end is fixed on the vertical positioning rod 020, with its length direction being the same as the length direction of the template 001 being measured; the rod head clamp 220 is an electric or manual clamp that is fixed to the telescopic end of the positioning telescopic rod 210.

[0046] The basic clamp 030 includes a support frame 310, a first telescopic pressure plate 320, a second telescopic pressure plate 330, and a pressure plate shifting assembly 340. The support frame 310 is a U-shaped rigid tube, inclined, with its axis aligned with the axis of the clamping and shifting assembly, and is positioned on a vertical positioning rod 020 for clamping and fixing the template 001. The first telescopic pressure plate 320 and the second telescopic pressure plate 330 are both inclined rigid plates, arranged opposite each other, and both located within the space enclosed by the support frame 310. The surfaces are flat, and under the action of the pressure plate shifting assembly 340, they move closer or further apart to clamp and fix the template 001 that passes through the bearing frame 310 from its top and bottom surfaces as needed. The pressure plate shifting assembly 340 is an electric telescopic rod structure, which is controlled by the control unit to extend and retract. There are two of them, which correspond one-to-one with the first telescopic pressure plate 320 and the second telescopic pressure plate 330. One end of each is positioned on the inner wall of the bearing frame 310, and the other end is positioned on the first telescopic pressure plate 320 or the second telescopic pressure plate 330.

[0047] The extended clamp 040 is clamped and fixed on the template 001, including a frame 410 and a third pressure plate 430; the frame 410 is a U-shaped rigid tube that is in a vertical position during testing; the third pressure plate 430 is a vertically arranged rigid plate located in the space enclosed by the frame 410, and is brought close to the inner wall of the frame 410 under the action of the electric telescopic rod to clamp and fix the template 001.

[0048] An adsorption body 450 and a positioning body 460 are positioned on the surface of the frame 410 away from the vertical positioning rod 020. The adsorption body 450 is a ferromagnetic plate or block, located on the surface of the outer wall of the frame 410 or embedded in the outer wall of the frame 410, and is used to cooperate with the adsorption and positioning assembly to adsorb the extension clamp 040. The positioning body 460 is a protrusion or groove, located on the surface of the outer wall of the frame 410, and is used to cooperate with the adsorption and positioning assembly to position the extension clamp 040.

[0049] The adsorption positioning assembly includes an adsorption positioning block 510 and a block carrier 520. The adsorption positioning block 510 is a rigid block, inclined and fixed to the vertical positioning rod 020 by the block carrier 520, and has a built-in adsorption body 511. The adsorption positioning block 510 is located above the extension clamp 040, and its bottom surface is parallel to the top surface of the outer wall of the base clamp 030. The bottom surface of the adsorption positioning block 510 is also provided with a positioning body 460, which is a protrusion or groove that matches the positioning body 460 on the carrier frame 410. The built-in adsorption body 511 is an electromagnet plate or block, which is controlled by the control unit. When the carrier frame 410 is adsorbed on the adsorption positioning block 510, its axial direction is the same as the axial direction of the supporting frame 310.

[0050] The power assembly provides power to the operation of each component of the paper-faced gypsum board adhesion testing device of this application, and the control unit plays the role of coordinating the operation of each component of the paper-faced gypsum board adhesion testing device. Both are existing technologies and will not be described in detail here.

[0051] The number of cuts 002 on the sample 001 is two or more (the following description of the steps for using the paper-faced gypsum board adhesion testing device is illustrated using two cuts 002 as an example).

[0052] The control unit has the functions of recording and calculating the number of rotations of the take-up and unwinding drum 120 and the extension drum 140. After pressing the control button of the control unit, the control unit will record the number of rotations of the take-up and unwinding drum 120 and the extension drum 140, and then automatically calculate the load on the template 001. (When the same template 001 is measured multiple times, the weight of the template 001 will cause a certain error in the measured data due to the different positions of the cut 002. This error can be eliminated by adding the weight value after measuring the weight of each section of template 001 after the test, or by setting a compensation value in the control unit according to the position of the cut 002.)

[0053] Preferably, the paper-faced gypsum board adhesion testing device further includes a camera component, which is signal-connected to the control unit. When the control button is pressed, the camera component records the state of the sample 001 from the side of the sample 001.

[0054] Preferably, the paper-faced gypsum board adhesion testing device also includes a display screen connected to the control unit for displaying the measured data.

[0055] When using the paper-faced gypsum board adhesion testing device of this application embodiment: First, two slits 002 are made on the template 001 (the length direction of the slits 002 is the same as the width direction of the template 001). Then, the template 001 is broken off along the slits 002, and one end of the template 001 is fixed to the rod head clamp 220. The base clamp 030 is controlled to clamp the template 001, ensuring that the slit 002 away from the extension clamp 040 is clamped by the base clamp 030 to prevent it from affecting the testing process. The extension clamp 040 is fixed to the end of the template 001 away from the positioning telescopic rod 210, keeping the slit 002 near the extension clamp 040 between the base clamp 030 and the extension clamp 040. Then, the template 001 is tested... The initial measurement is performed by pressing the control button when the face paper and core material bonded surfaces separate, and obtaining the test result. Afterwards, the counterweight belt 130 is wound up, pulling the extension clamp 040 close to the adsorption positioning block 510. Following this, the built-in adsorption body 511 is energized to adsorb and position the extension clamp 040. Then, the base clamp 030 and extension clamp 040 are controlled to release the clamped sample 001, and the clamping and shifting component is controlled to move the sample 001, causing another cut 002 to move between the base clamp 030 and the extension clamp 040. The base clamp 030 and extension clamp 040 are then controlled to clamp and fix the sample 001. A second measurement for the sample 001 is then automatically performed.

[0056] In the above usage steps, the template 001 can be broken by hand or not. The template 001 can also be broken along the cut 002 by using the gravity of the extension clamp 040 and the counterweight belt 130. Breaking it by hand is relatively safer.

[0057] Furthermore, an inner frame pad 420 is fixed on the inner wall of the frame 410 at a position opposite to the third pressure plate 430; the inner frame pad 420 is a rigid block, and the surface near the third pressure plate 430 is a plane.

[0058] Furthermore, a wheel support 440 is provided on the inner wall near the bottom of the frame 410; the wheel support 440 is a rigid block used to support the guide wheel frame 151.

[0059] Example 3

[0060] Considering that the limitation of the paper-faced gypsum board adhesion testing device in the above embodiments in automatically completing multiple measurements of a sample 001 is the inability to automatically determine whether the adhesive surfaces of the facing paper and the core material have separated and the degree of separation using the control unit, in order to further improve the ease of use of this application, in response to the above problem, this application embodiment adds a position monitoring component 470 based on the above embodiments; the position monitoring component 470 assists the entire device in automatically completing multiple tests of a sample 001; specifically: like Figure 7 and Figure 11 As shown, the position monitoring component 470 is signal-connected to the control unit and includes an infrared transmitter and multiple infrared receivers. The infrared transmitter is positioned on the surface of the extension clamp 040 near the vertical positioning rod 020. The infrared receivers are positioned on the surface of the vertical positioning rod 020 near the extension clamp 040 and are arranged in a row. In use, the signal received by the infrared receiver determines whether the adhesive surfaces of the face paper and the core material have separated and the degree of separation. The detection results can be obtained without the need for control buttons.

[0061] Example 4

[0062] To further improve the ease of use of the paper-faced gypsum board adhesion testing device of this application, and to enable the automatic testing of multiple sample boards 001, this embodiment adds a sample feeding component based on the above embodiment, specifically: like Figure 12 and Figure 13 As shown, the clamping and shifting assembly also includes an extension frame 022; the extension frame 022 is a rigid support, fixed on the vertical positioning rod 020, and is used to support the positioning telescopic rod 210; the non-telescopic end of the positioning telescopic rod 210 is fixed on the extension frame 022.

[0063] The template feeding assembly includes an inclined box body 610 and an internal lifting plate 620; The inclined box 610 is a rigid box with an opening at the top. The inner bottom contour is similar to that of the template 001. It is fixed on the vertical positioning rod 020 and is used to accommodate the untested template 001. When the positioning telescopic rod 210 is retracted, the inclined box 610 is located between the positioning telescopic rod 210 and the base clamp 030. The built-in lifting plate 620 is positioned inside the inclined box 610 and moves along the length of the inclined box 610 under the drive of the electric telescopic rod, thereby moving the untested template 001 up and down. The top of the side wall of the inclined box 610 is provided with a side groove 611. There are two side grooves 611, which are respectively set close to the positioning telescopic rod 210 and the base clamp 030 for the positioning telescopic rod 210 to pass through.

[0064] In use: Place multiple templates 001 into the inclined box 610; control the adsorption positioning block 510 to adsorb and fix the expansion clamp 040; control the first telescopic pressure plate 320 and the second telescopic pressure plate 330 to move away from each other, leaving a gap between them for the templates 001 to pass through; control the third pressure plate 430 to move, reducing the gap between it and the inner wall of the frame 410, so that the third pressure plate 430 can block the sliding templates 001; then, control the built-in lifting plate 620 to move upward, pushing the topmost template 001 out of the inclined box 610. The template 001 slides down under its own weight until it touches the third pressure plate 430 (this... (The template 001 can be pushed down using the clamping and shifting assembly to assist its downward movement). Then, the built-in lifting plate 620 is controlled to move down. Then, the clamping and shifting assembly is controlled to extend and clamp the end of the template 001. After this, the position of the template 001 is adjusted and the template 001 is clamped using the base clamp 030 and the extension clamp 040 to prepare for the test. Then, the counterweight belt assembly is controlled to run and test the template 001. After testing the template 001 once or multiple times, the template 001 is directly pushed out of the extension clamp 040 and allowed to fall naturally. Then, all components are reset and the testing of other templates 001 is continued.

[0065] Furthermore, the side wall of the inclined box 610 is provided with an inlet for placing the template 001, and the user can adjust the order of the templates 001 inside as needed.

[0066] Example 5

[0067] Considering that the adhesion test of paper-faced gypsum board requires testing of both facing papers, in order to further improve the practicality and ease of use of this application, this embodiment adds a positioning ring carrier 021, an outer positioning ring 350, and a ring rotation drive assembly to the above embodiment; this allows the sample 001 to be automatically flipped during testing to facilitate the test; specifically: like Figure 14As shown, the positioning ring carrier 021 is a rigid circular ring, which is inclined and fixed on the vertical positioning rod 020; The outer positioning ring 350 is a rigid circular ring, which is sleeved and fixed on the support frame 310 and is coaxial with the support frame 310. The outer positioning ring 350 is rotatably connected to the positioning ring carrier 021, and the two are coaxial. Under the drive of the ring rotation drive component, it rotates to realize the 180-degree flip of the template 001.

[0068] The ring rotation drive assembly is preferably a gear ring structure.

[0069] The block carrier 520 is rotatably connected to the vertical positioning rod 020. The axis of the rotation shaft is parallel to the horizontal ground. It rotates under the coordinated control of the control unit and the power component, thereby causing the adsorption positioning block 510 to flip up in time, thus avoiding its presence in obstructing the flipping of the basic fixture 030 and the positioning template 001.

[0070] The flipping action of template 001 can be performed before testing, or after the test of one side of the protective paper of a single template 001 is completed; during flipping, only the basic fixture 030 clamps and fixes template 001.

[0071] If it is necessary to test both sides of the protective paper of the same sample 001, at least one cut 002 needs to be made on both the top and bottom surfaces.

[0072] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for testing the adhesion of paper-faced gypsum board, comprising a carrier plate (010), a vertical positioning rod (020), a base clamp (030), and an extension clamp (040), characterized in that: It also includes a counterweight belt assembly; The counterweight belt assembly includes a support frame (110), a winding and unwinding drum (120), and a counterweight belt body (130); The support frame (110) is located on one side of the vertical positioning rod (020); the test sample (001) is located between the vertical positioning rod (020) and the support frame (110); The take-up and untake-down drum (120) is positioned on the support frame (110); The counterweight belt (130) is a rectangular belt or chain made of metal or non-metal, which applies a load to the template (001) by its own weight. One end is positioned at the bottom of the extension clamp (040), and the other end is wound and positioned on the take-up and unwinding drum (120). When the take-up and undo drum (120) rotates, the amount of counterweight belt (130) between the extension clamp (040) and the take-up and undo drum (120) is increased or decreased; It also includes a clamping and shifting component and an adsorption and positioning component; The clamping and shifting assembly includes a positioning telescopic rod (210) and a rod head clamp (220); The positioning telescopic rod (210) is inclined, and the non-telescopic end is fixed on the vertical positioning rod (020). The length direction is the same as the length direction of the sample (001) being measured. The rod head clamp (220) is an electric or manual clamp, fixed to the telescopic end of the positioning telescopic rod (210); Both the basic clamp (030) and the extended clamp (040) are electric clamps; On the surface of the extension fixture (040) away from the vertical positioning rod (020), there are ferromagnetic adsorption bodies (450) and positioning bodies (460) that are protrusions or grooves. The adsorption positioning component includes an adsorption positioning block (510) and a block carrier (520); The adsorption positioning block (510) is located above the extension clamp (040), has an electromagnet built in it, and is fixed to the vertical positioning rod (020) by the block frame (520).

2. The paper-faced gypsum board adhesion testing device as described in claim 1, characterized in that: The carrier plate (010) is arranged horizontally and positioned on the ground or on the experimental table; The vertical positioning rod (020) is vertically positioned and located at the top of the carrier plate (010); The basic clamp (030) is an inclined electric or manual clamp; The template (001) clamped and fixed on the base fixture (030) is set at an angle with its top surface facing upwards. The end of the template (001) away from the cut (002) is clamped and fixed by the base fixture (030). The expansion clamp (040) is an electric or manual clamp, and is set vertically when performing adhesion testing; one end of the template (001) near the cut (002) is clamped and fixed by the expansion clamp (040); The fixing points of the basic fixture (030) and the extension fixture (040) on the template (001) are located near the ends of the top and bottom surfaces of the template (001).

3. The paper-faced gypsum board adhesion testing device as described in claim 1, characterized in that: The counterweight belt (130) is composed of multiple belt segments spliced ​​together, and the weight per unit length of different belt segments is different.

4. The paper-faced gypsum board adhesion testing device as described in claim 1, characterized in that: The counterweight belt assembly also includes an extension drum (140) and a guide wheel (150); The extension drum (140) is positioned on the support frame (110) and above the take-up drum (120); The guide wheel (150) is positioned at the bottom of the extension clamp (040); One end of the counterweight belt (130) is wound and positioned on the take-up and unwinding drum (120), and the other end is wound and positioned on the extension drum (140), passing through the gap between the guide wheel (150) and the extension clamp (040).

5. The paper-faced gypsum board adhesion testing device as described in claim 1, characterized in that: The basic fixture (030) includes a support frame (310), a first telescopic pressure plate (320), a second telescopic pressure plate (330), and a pressure plate shifting assembly (340); The supporting frame (310) is a U-shaped rigid tube, inclined, with its axis being the same as the axis of the clamping and shifting component, and is positioned on the vertical positioning rod (020). The first telescopic pressure plate (320) and the second telescopic pressure plate (330) are both rigid plates that are inclined. They are arranged opposite each other and are located in the space enclosed by the bearing frame (310). Their opposite surfaces are flat. They move closer to each other or further away from each other under the action of the pressure plate shifting component (340).

6. The paper-faced gypsum board adhesion testing device as described in claim 1, characterized in that: The extension clamp (040) is clamped and fixed on the template (001), including a frame (410) and a third pressure plate (430); the frame (410) is a U-shaped rigid tube, which is in a vertical state during testing; the third pressure plate (430) is a vertically arranged rigid plate, located in the space enclosed by the frame (410), and approaches the inner wall of the frame (410) in a timely manner under the drive of the electric telescopic rod, thereby clamping and fixing the template (001).

7. The paper-faced gypsum board adhesion testing device as described in claim 1, characterized in that: It also includes a location monitoring component (470); The position monitoring component (470) is signal-connected to the control unit and includes an infrared transmitter and multiple infrared receivers; The infrared emitter is positioned on the surface of the extension clamp (040) near the vertical positioning rod (020); The infrared receivers are positioned on the surface of the vertical positioning rod (020) near the extension clamp (040) and are arranged in a row; During use, the signal received by the infrared receiver determines whether the adhesive surfaces of the faceplate and the core material have separated and to what extent.

8. The paper-faced gypsum board adhesion testing device as described in claim 7, characterized in that: It also includes a sample feeding assembly; The template feeding assembly includes an inclined box body (610) and an internal lifting plate (620); The inclined box (610) is a rigid box with an opening at the top, fixed on a vertical positioning rod (020), used to accommodate untested samples (001); When the positioning telescopic rod (210) is in the retracted state, the inclined box body (610) is located between the positioning telescopic rod (210) and the base clamp (030); The built-in lifting plate (620) is positioned inside the inclined box (610) and moves along the length of the inclined box (610); the top of the side wall of the inclined box (610) is provided with two side grooves (611), which are respectively located near the positioning telescopic rod (210) and the base clamp (030) for the positioning telescopic rod (210) to pass through.

9. The paper-faced gypsum board adhesion testing device as described in claim 8, characterized in that: It also includes a positioning ring carrier (021), an outer positioning ring (350), and a ring rotation drive assembly; The positioning ring carrier (021) is a rigid circular ring, which is inclined and fixed on the vertical positioning rod (020); The outer positioning ring (350) is a rigid circular ring, which is sleeved and fixed on the bearing frame (310); the outer positioning ring (350) is rotatably connected to the positioning ring carrier (021), and the two are coaxial. Under the drive of the ring rotation drive component, it rotates to realize the flipping of the template (001). The block carrier (520) is rotatably connected to the vertical positioning rod (020) and rotates under the coordinated control of the control unit and the power component, thereby causing the adsorption positioning block (510) to flip up in time and thus avoids the flipping of the basic fixture (030) and its positioning template (001).

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