CN117110060A - Method for testing tensile strength of alkali-resistant glass fiber mesh cloth - Google Patents
Method for testing tensile strength of alkali-resistant glass fiber mesh cloth Download PDFInfo
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- CN117110060A CN117110060A CN202311371242.7A CN202311371242A CN117110060A CN 117110060 A CN117110060 A CN 117110060A CN 202311371242 A CN202311371242 A CN 202311371242A CN 117110060 A CN117110060 A CN 117110060A
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- 239000004744 fabric Substances 0.000 title claims abstract description 185
- 238000012360 testing method Methods 0.000 title claims abstract description 63
- 239000003365 glass fiber Substances 0.000 title claims abstract description 57
- 239000003513 alkali Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 38
- 230000007246 mechanism Effects 0.000 claims abstract description 75
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 69
- 238000012545 processing Methods 0.000 claims abstract description 63
- 230000009471 action Effects 0.000 claims abstract description 39
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 23
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 19
- 238000005070 sampling Methods 0.000 claims abstract description 4
- 239000002585 base Substances 0.000 claims description 54
- 230000002787 reinforcement Effects 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 5
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000005012 migration Effects 0.000 claims description 3
- 238000013508 migration Methods 0.000 claims description 3
- 239000011087 paperboard Substances 0.000 claims description 2
- 230000033001 locomotion Effects 0.000 abstract description 14
- 239000000835 fiber Substances 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 229920006335 epoxy glue Polymers 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to the technical field of fiber mesh cloth, in particular to a method for testing stretching strength of alkali-resistant glass fiber mesh cloth, which comprises the following steps: sampling, gluing reinforcing sheets, testing, wherein one sides of the gluing device and the clamping device are provided with horizontal moving mechanisms, the gluing device comprises a height adjusting mechanism and a clamping mechanism, and the clamping device comprises a stretching mechanism and a clamping mechanism. According to the method for testing the tensile strength of the alkali-resistant glass fiber mesh cloth, the double-end bidirectional screw rod is driven to rotate through the other driving motor in the processing table, so that the clamping plates which are oppositely arranged are enabled to perform relative movement, the toothed surfaces of the clamping plates and the outer surfaces of the reinforcing plates, which are rough and have tooth marks, are enabled to clamp, and the two unidirectional screws which are oppositely arranged and the double-end bidirectional screw rod are enabled to synchronously rotate through the action of the belt pulley and the driving belt, so that the upper end and the lower end of the clamping plates are simultaneously pushed, and the clamping plates are enabled to clamp the sample cloth and do not slide down in stretching.
Description
Technical Field
The invention relates to the technical field of fiber mesh fabrics, in particular to a method for testing stretching strength of alkali-resistant glass fiber mesh fabrics.
Background
The glass fiber mesh cloth is made of glass fiber woven fabric serving as a base material and is coated with a high-molecular anti-emulsion soaking coating, and has good alkali resistance, flexibility and high warp-weft-direction tensile resistance, so that the glass fiber mesh cloth is very widely applied, can be applied to heat preservation, water resistance, fire resistance, crack resistance and the like of inner and outer walls of a building, is mainly made of alkali-resistant glass fiber mesh cloth, is formed by twisting alkali-free glass fiber yarns through a special tissue structure, namely a leno tissue, and is an ideal inorganic nonmetallic engineering material in the building industry after being subjected to high-temperature heat setting treatment such as alkali resistance, reinforcing agents and the like.
Along with the demand in market, the requirement to glass fiber net cloth also constantly improves, and to different demands, the quality of glass fiber net cloth is uneven too, consequently need carry out tensile strength test to it, guarantees that glass fiber net cloth's wholeness can be in standard position, and current glass fiber net cloth tensile strength test carries out its performance detection through the mode that adopts the manual work to pull, consequently has following problem:
firstly, the effect of detecting is poor when the traditional mode detects, and the glass fiber mesh cloth sample of taking is glued the reinforcement piece through the manual work for the both ends length of sample has length, and has used a large amount of manpowers, influences the result of detecting.
Secondly, the stability of clamping the glass fiber mesh cloth is poor in the traditional mode, the clamping force is not uniform enough in the clamping process, the clamped part is easy to slide, the detection result is further inaccurate, the sample is broken to generate instant force, the force is easy to damage equipment, and the service life of the equipment is reduced, so that the defects of the technical problems are solved.
Disclosure of Invention
Based on the technical problems that the existing glass fiber mesh cloth sample is manually glued and reinforced, the lengths of two ends of the sample are long or short, a large amount of manpower is used, the detection result is affected, the clamping force is not uniform enough when the sample is clamped, the clamped part is easy to slide down, and the detection result is not accurate enough.
The invention provides a method for testing stretching strength of alkali-resistant glass fiber mesh cloth, which comprises the following steps:
1) Sampling: and naturally unreeling the alkali-resistant glass fiber mesh cloth from the reel for a certain length on a flat table top, keeping the alkali-resistant glass fiber mesh cloth in an original state as far as possible under the action of external force when unreeling, and then cutting out 5 alkali-resistant glass fiber mesh sample cloths with consistent sizes by using scissors.
2) Gluing reinforcing sheets: preparing a gluing device, placing the reinforcing sheets of the cardboard sheets with the inner surfaces coated with epoxy resin glue at the upper end and the lower end of the gluing device in a V shape, placing the sample cloth at the upper end and the lower end of the gluing device, respectively and simultaneously pasting the reinforcing sheets at the two ends of the sample cloth, enabling the two ends of the sample cloth to be in a clamped state in the middle of the reinforcing sheets, and bonding and solidifying the sample cloth.
3) And (3) testing: and clamping and locking the two ends of the hardened sample cloth glued with the reinforcing sheet in the middle of the clamping device, stretching the sample cloth upwards at a constant speed until the sample cloth breaks, recording the maximum force of the sample cloth when the sample cloth breaks, and calculating the average value as the tensile breaking strength of the fabric, wherein each group of tests has at least 5 effective data.
Preferably, a horizontal moving mechanism is arranged on one side of the gluing device and one side of the clamping device, the gluing device comprises a height adjusting mechanism and a clamping mechanism, and the clamping device comprises a stretching mechanism and a clamping mechanism.
The horizontal moving mechanism horizontally clamps two ends of the cut sample cloth and horizontally moves at a uniform speed, so that the sample cloth is glued and tested.
Wherein, the height adjustment mechanism carries out the height adjustment action to the upper end part of the gluing device, so that the inner surface of the reinforcing sheet at the upper end is contacted with the outer surface of the upper end of the sample cloth.
The clamping mechanism performs closing action on the V-shaped open reinforcing sheet, so that the reinforcing sheet is adhered to the outer surfaces of the upper end and the lower end of the sample cloth.
The clamping mechanism clamps the outer surfaces of the reinforcing sheets at two ends of the sample cloth.
The stretching mechanism stretches the upper end of the sample cloth, and further the stretching strength testing action is completed.
Preferably, the horizontal movement mechanism comprises a support panel, a side surface fixedly connected with of support panel is from the removal slide rail, from the upper and lower end of removal slide rail is provided with the direction draw-in groove, two the direction draw-in groove is all seted up a side surface of support panel, the inner wall slip joint of direction draw-in groove has the mounting panel, the surface of mounting panel with from the surface slip joint of removal slide rail, the inside clamping cylinder that distributes about being of one end of mounting panel, the draw-in groove has been seted up on the clamping cylinder's clamping jaw surface, the internal surface of clamping jaw with the surface sliding contact of appearance cloth.
Through the technical scheme, the alkali-resistant glass fiber mesh cloth tensile strength test is usually carried out by taking the sample cloth manually, bonding reinforcing sheets are bonded at two ends of the sample cloth, then the sample cloth is manually moved away, the sample cloth is placed after being clamped by the clamping equipment, so that a large amount of manpower participates in the alkali-resistant glass fiber mesh cloth tensile strength test, test errors exist in the alkali-resistant glass fiber mesh cloth tensile strength test, and the efficiency is lower, in order to improve the test efficiency, and a large amount of manpower is avoided, a support panel is arranged, the surface of the support panel is driven by the self-moving sliding rail, the mounting plate on the surface of the support panel is driven to horizontally move under the limit of the guide clamping groove, clamping cylinder clamping jaws on one side of the mounting plate are uniformly distributed at the upper end and the lower end of the sample cloth to be clamped, the clamping cylinder clamping jaws move along with the horizontal movement of the mounting plate, and the tensile strength test is completed in the moving process, and the test efficiency is improved.
Preferably, the height adjusting mechanism comprises a supporting column internally provided with a driving motor, a lower base is fixedly connected with one side surface of the bottom end of the supporting column, an upper base is arranged on one side of the upper end of the supporting column, a movable groove is formed in a penetrating mode in one side surface of the middle of the supporting column, an adjusting screw is connected to the inner wall of the upper end and the lower end of the movable groove in a rotating mode through a bearing, one side surface of the upper base is sleeved with the outer surface of the adjusting screw through a lug, and one side surface of the upper base is connected with a sliding groove formed in the opposite side surface of the supporting column in a sliding mode through a sliding block.
Through the technical scheme, the horizontal movement of the mounting plate drives the sample cloth on one side of the clamping cylinder to move between the upper base and the lower base, and the outer surface of the lower end of the sample cloth is suspended above the lower base, so that the upper base is suspended at the upper end of the sample cloth, the adjusting screw is connected with the outer surface of the output shaft of the driving motor inside the supporting upright post through the coupler, the driving motor is further driven to act, the adjusting screw is controlled to rotate at a uniform speed, the upper base moves up and down on the outer surface of the adjusting screw under the action of the sliding groove and the sliding block, the length of the sample cloth is adapted, and the bonding of the reinforcing sheets on the outer surface of the upper end and the lower end of the sample cloth is further completed.
Preferably, the clamping mechanism is a cross-shaped movable bottom plate, the movable bottom plates are uniformly distributed on the lower surface of the upper base and the upper surface of the lower base, clamping plates distributed in an inverted splayed mode are hinged to the outer surfaces of two ends of the movable bottom plate through hinge shafts, clamping blocks with inner surfaces distributed in a toothed mode are fixedly connected to one side surfaces of the clamping plates, the inner surfaces of the clamping blocks are in sliding contact with the outer surfaces of the reinforcing sheets, vacuum suction cups distributed in a rectangular array are fixedly connected to the upper surface of the middle of the movable bottom plate, and the surfaces of the suction ends of the vacuum suction cups are in suction contact with the lower surfaces of the reinforcing sheets.
Through above-mentioned technical scheme, in order to close open reinforcement piece, thereby make its upper and lower extreme surface that bonds at the appearance cloth, thereby need extrude the both ends of reinforcement piece, in order to realize the extruded action, place the reinforcement piece that has epoxy glue with the internal surface at the upper surface of movable bottom plate, make the rough surface of reinforcement piece and the internal surface contact of clamp splice, in order to prevent that the reinforcement piece on the upper base from dropping, thereby place the back with the reinforcement piece, adsorb the lower surface of reinforcement piece through vacuum chuck, at this moment, drive the clamp splice through two splint inwards upset shrink, thereby can make the clamp splice of relative motion extrude the reinforcement piece, make its both ends that bond at the appearance cloth.
Preferably, the clamping mechanism further comprises a driving cavity formed in the upper base and the lower base, a shrinkage cylinder is mounted on the inner bottom wall of the driving cavity, a telescopic rod is fixedly connected with the lower surface of the middle of the movable bottom plate, the outer surface of the telescopic rod penetrates through and extends to the driving cavity and is fixedly connected with the surface of a piston rod of the shrinkage cylinder, a compression spring is sleeved on the outer surface of the telescopic rod, the free end of the compression spring is fixedly connected with the lower surface of the upper base and the upper surface of the lower base respectively, a limit frame with a conical groove formed in the middle is fixedly connected with the lower surface of the upper base, the limit frame is covered on the outer surface of the clamping plate, and a drying box is arranged on one side surface of the supporting upright.
According to the technical scheme, the clamping blocks are driven to automatically shrink for driving the clamping plates to bond the reinforcing plates, so that after the reinforcing plates are placed, the shrinkage air cylinder in the driving cavity is used for acting, the piston rod of the clamping blocks is pulled downwards to stretch the shrinkage rod, the movable bottom plate can move downwards under the assistance of the compression springs, the hinged clamping plates shrink inwards under the guidance of the conical grooves of the limiting frames, shrinkage of the reinforcing plates is achieved, the bonded reinforcing plates are prevented from being manually moved to the drying box for drying, clamping jaws of the clamping air cylinder are used for holding sample cloth in the process of the action of the clamping mechanism, and then after the reinforcing plates are bonded, the clamping air cylinder is used for driving the sample cloth to horizontally move and stay in the drying box, so that the reinforcing plates at the upper end and the lower end of the sample cloth are solidified by the heating element, and the clamping air cylinder is driven to horizontally move through the drying box to the clamping device under the action of the self-moving sliding rail after solidification, and then the test is achieved.
Preferably, the clamping mechanism comprises a processing table supported by a base, the other processing table which is oppositely arranged is arranged above the processing table, an action cavity and a linkage cavity are respectively formed in the two processing tables, a double-head bidirectional screw is connected in the action cavity through bearing rotation, the outer surfaces of the two ends of the double-head bidirectional screw extend to the inside of the linkage cavity, clamping plates with toothed surfaces and hooks are sleeved on the outer surfaces of the two ends of the double-head bidirectional screw respectively in a threaded manner, and the two ends of the lower surface of each clamping plate are in sliding connection with the upper surface of the processing table through another sliding block and another sliding groove.
Through the technical scheme, the clamping cylinder moves the sample cloth with the reinforcing sheets bonded at the two ends between the two clamping plates on the upper processing table and the lower processing table, so as to clamp the upper end and the lower end of the sample cloth, and further realize the powerful test on the stretching of the sample cloth, the two ends of the sample cloth move between the clamping plates, the double-head bidirectional screw rod is driven by the other driving motor in the processing table to rotate, so that the oppositely arranged clamping plates perform relative movement, the toothed surfaces of the clamping plates are clamped with the outer surfaces of the reinforcing sheets with tooth marks, the convex parts between the reinforcing sheets and the sample cloth can be clamped by the bent hooks of the clamping plates, and the sliding during stretching can be avoided.
Preferably, the clamping mechanism further comprises a unidirectional screw rod which is oppositely arranged, one end outer surface of the unidirectional screw rod is in threaded sleeve joint with one side surface of the upper end of the clamping plate, one end outer surface of the unidirectional screw rod is in rotary connection with the surface of a supporting side plate of the processing table through a bearing, two end outer surfaces of the unidirectional screw rod and two end outer surfaces of the double-end bidirectional screw rod are fixedly sleeved with belt pulleys, an upper group of belt pulleys and a lower group of belt pulleys are in transmission connection with a transmission belt, and the transmission belt penetrates through the linkage cavity.
Through above-mentioned technical scheme, in order to make the upper and lower end atress of clamping plate balanced to can be better realize the clamp of sample cloth, make it stretch, and then through belt pulley and drive belt's action, make two unidirectional screw rods that set up relatively realize synchronous rotation with double-end bi-directional screw rod, thereby realize the upper and lower end simultaneous propulsion of clamping plate, make the clamping plate realize the centre gripping to sample cloth and do not fall when tensile.
Preferably, the stretching mechanism comprises a supporting beam fixedly connected to one side surface of the processing table at the lower end, the lower surface of the supporting beam is fixedly connected with a hydraulic press, a tension pressure sensor is fixedly connected to the surface of a piston rod of the hydraulic press, and the surface of a stress end of the tension pressure sensor is fixedly connected with the upper surface of the processing table at the upper end.
Through the technical scheme, in order to enable the processing table at the upper end to adapt to the length of the sample cloth, the clamped sample cloth is stretched to carry out tensile strength test, and a specific value of the tensile force is measured, so that a piston rod of the hydraulic press drives the processing table at the lower surface of the tension pressure sensor to move up and down, when the processing table at the upper end moves upwards through the action of the hydraulic press, the sample cloth is stretched until the sample cloth is broken, and the specific value of the tensile force is measured by the tension pressure sensor and recorded.
Preferably, the stretching mechanism further comprises a concave plate which is oppositely arranged, one side surface of the concave plate is fixedly connected with one side surface of the supporting beam, the inner surface of the concave plate is slidably connected with the outer surface of the processing table at the upper end, balls are fixedly arranged on opposite sides of the inner surface of the concave plate in a rectangular array distribution mode, and the outer surfaces of the balls are slidably connected with the outer surface of the processing table at the upper end.
Through the technical scheme, the upper end processing table is guided and limited when being stretched, and the instantaneous force generated when the sample cloth is broken is buffered, so that the processing table passes through the concave plate when being controlled by the hydraulic press to move upwards, and rolls on the outer surface of the ball on the inner surface of the concave plate, so that the guiding and limiting are realized, and the instantaneous force is buffered under the rolling of the ball when the sample cloth is broken, further, the damage of equipment caused by the instantaneous force of the break can be prevented, and the service life is reduced.
The beneficial effects of the invention are as follows:
1. through setting up the veneer device, can realize automatic bonding reinforcement piece to the both ends of appearance cloth, thereby can avoid too much manpower participation, at the in-process of regulation, through the reinforcement piece that has paintd the epoxy glue with the internal surface, make the rough surface of reinforcement piece and the internal surface contact of clamp splice, adsorb the lower surface of reinforcement piece through vacuum chuck, move by the shrink cylinder in the drive cavity again, make its piston rod pull down the shrink pole, can make movable bottom plate under compression spring's assistance downward movement, thereby realize articulated splint and inwards shrink under limit frame's taper groove guide, realize the shrink to the reinforcement piece, make the reinforcement piece bond at the both ends of appearance cloth, and after bonding the reinforcement piece, the centre gripping cylinder drives the appearance translation and stops to the stoving case, make heating element solidify to the reinforcement piece of appearance cloth upper and lower extreme, the centre gripping cylinder passes stoving case horizontal migration to clamping device department under the effect of self-moving slide rail and realize the test, thereby the efficiency of alkali-resisting glass fiber net cloth stretching strength test has been improved, and the effect of avoiding too much manual intervention to detect the result.
2. Through setting up the clamping mechanism in the clamping device, can realize treating tensile appearance cloth and realize two and press from both sides tightly, at the in-process of adjusting, move the appearance cloth that both ends bond the reinforcement piece between two clamping plates on upper and lower two processing tables through the centre gripping cylinder, drive double-end bi-directional screw rod rotates through another driving motor in the processing table, thereby make the relative clamping plate that sets up carry out relative motion, make its toothed surface press from both sides with the rough surface that has the tooth trace of reinforcement piece, and the position of clamping plate crotch can grasp the bulge between reinforcement piece and the appearance cloth, can avoid landing when stretching, and through the action of belt pulley and driving belt, make two uni-directional screw rods that set up relatively realize synchronous rotation with double-end bi-directional screw rod, thereby realize the upper and lower extreme simultaneous propulsion of clamping plate, make the clamping plate realize the centre gripping to the appearance cloth and not the landing when stretching, make the stability to the fibre glass net cloth centre gripping when detecting better, and the force of centre gripping when centre gripping is enough, further make the result of detecting accurate.
3. Through setting up the stretching mechanism in the clamping device, can realize stretching the sample cloth upper end that presss from both sides tightly, accomplish tensile strength test, in the in-process of adjusting, through setting up the hydraulic press, make its piston rod drive the processing platform of drawing pressure sensor lower surface and reciprocate, when the processing platform of upper end moves upwards through the hydraulic press action, then realize stretching to the sample cloth, until the sample cloth fracture, the concrete numerical value of tensile force is measured by drawing pressure sensor and record, when the upper end processing platform passes hydraulic press control upward movement, make the processing platform pass concave template, and roll at concave template internal surface's ball surface, thereby realize the direction spacing, and when the sample cloth fracture, buffer the instantaneous power under the roll of ball, and then can prevent cracked instantaneous power and lead to the damage of equipment, thereby reduce life.
Drawings
FIG. 1 is a schematic diagram of a tensile strength test method for alkali-resistant glass fiber mesh cloth;
FIG. 2 is a perspective view of a horizontal movement mechanism structure of the method for testing tensile strength of alkali-resistant glass fiber mesh cloth;
FIG. 3 is a perspective view of a mounting plate structure of an alkali-resistant glass fiber mesh cloth tensile strength testing method according to the invention;
FIG. 4 is a perspective view of a clamping cylinder structure of the method for testing the tensile strength of alkali-resistant glass fiber mesh cloth;
FIG. 5 is a perspective view of a clamping mechanism structure of the method for testing the stretching strength of alkali-resistant glass fiber mesh cloth;
FIG. 6 is a perspective view of an adjusting screw structure of a method for testing stretching strength of alkali-resistant glass fiber mesh cloth according to the invention;
FIG. 7 is a perspective view of a shrinkage cylinder structure of the method for testing the tensile strength of alkali-resistant glass fiber mesh cloth according to the invention;
FIG. 8 is a perspective view of a clamp splice structure of a method for testing tensile strength of alkali-resistant glass fiber mesh cloth according to the present invention;
FIG. 9 is a perspective view of a clamping mechanism structure of a method for testing stretching strength of alkali-resistant glass fiber mesh cloth according to the invention;
FIG. 10 is a perspective view of a clamping plate structure of a method for testing tensile strength of alkali-resistant glass fiber mesh cloth according to the present invention;
FIG. 11 is a perspective view of the structure of the action cavity of the method for testing the tensile strength of the alkali-resistant glass fiber mesh cloth;
FIG. 12 is a perspective view of a double-ended bidirectional screw structure of a method for testing the tensile strength of an alkali-resistant glass fiber mesh cloth according to the invention;
FIG. 13 is a perspective view of a hydraulic press structure of a method for testing tensile strength of alkali-resistant glass fiber mesh cloth according to the present invention;
fig. 14 is a perspective view of a ball structure of a method for testing tensile strength of alkali-resistant glass fiber mesh cloth according to the present invention.
In the figure: 1. a sample cloth; 2. a reinforcing sheet; 3. a horizontal movement mechanism; 31. a support panel; 32. a self-moving slide rail; 33. a guide clamping groove; 34. a mounting plate; 35. a clamping cylinder; 4. a height adjusting mechanism; 41. a support column; 42. a lower base; 43. an upper base; 44. a movable groove; 45. adjusting a screw; 5. a clamping mechanism; 51. a movable bottom plate; 52. a clamping plate; 53. clamping blocks; 54. a vacuum chuck; 55. a drive cavity; 56. a shrink cylinder; 57. a telescopic rod; 58. a compression spring; 59. a limit frame; 60. a drying box; 6. a stretching mechanism; 61. a support beam; 62. a hydraulic press; 63. a pull pressure sensor; 64. a concave plate; 65. a ball; 7. a clamping mechanism; 71. a processing table; 72. an action cavity; 73. a linkage cavity; 74. a double-ended bi-directional screw; 75. a clamping plate; 76. a unidirectional screw; 77. a belt pulley; 78. a drive belt.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-14, a method for testing stretching strength of alkali-resistant glass fiber mesh cloth comprises the following steps:
1) Sampling: and naturally unreeling the alkali-resistant glass fiber mesh cloth from the reel for a certain length on a flat table top, keeping the alkali-resistant glass fiber mesh cloth in an original state as far as possible under the action of external force when unreeling, and then cutting out 5 alkali-resistant glass fiber mesh sample cloths 1 with consistent sizes by using scissors.
2) Glue reinforcement sheet 2: preparing a gluing device, placing the reinforcing sheets 2 of a paperboard type with the inner surfaces coated with epoxy resin glue at the upper end and the lower end of the gluing device in a V shape, placing the sample cloth 1 at the upper end and the lower end of the gluing device, respectively and simultaneously pasting the reinforcing sheets 2 at the two ends of the sample cloth 1, enabling the two ends of the sample cloth 1 to be in a clamped state in the middle of the reinforcing sheets 2, and bonding and solidifying.
3) And (3) testing: the two ends of the hardened sample cloth 1 glued with the reinforcing sheet 2 are clamped in the middle of the clamping device and locked, the sample cloth 1 is stretched upwards to break at a constant speed, the maximum force when the sample cloth 1 breaks is recorded, at least 5 effective data are needed for each group of tests, and the average value is calculated as the stretching breaking strength of the fabric.
One side of the gluing device and one side of the clamping device are provided with a horizontal moving mechanism 3, the gluing device comprises a height adjusting mechanism 4 and a clamping mechanism 5, and the clamping device comprises a stretching mechanism 6 and a clamping mechanism 7.
Referring to fig. 2 to 4, the horizontal moving mechanism 3 horizontally clamps two ends of the cut sample cloth 1 and horizontally moves at a uniform speed, so that the sample cloth 1 is glued and tested.
In order to improve the efficiency of test, and avoid using a large amount of manpowers, then horizontal migration mechanism 3 includes support panel 31, a side surface fixedly connected with from the removal slide rail 32 of support panel 31, the upper and lower end from the removal slide rail 32 is provided with guide slot 33, two guide slots 33 all offer a side surface at support panel 31, guide slot 33's inner wall slip joint has mounting panel 34, mounting panel 34's surface and the surface slip joint from removal slide rail 32, in order to realize the centre gripping removal to sample cloth 1, then the inside fixed mounting that distributes of one end of mounting panel 34 has centre gripping cylinder 35 from top to bottom, the draw-in groove has been seted up on the clamping jaw surface of centre gripping cylinder 35, the internal surface and the surface sliding contact of sample cloth 1 of clamping jaw.
Referring to fig. 5 to 6, the height adjusting mechanism 4 performs a height adjusting operation on the upper end portion of the bonding device so that the inner surface of the reinforcing sheet 2 at the upper end is in contact with the outer surface of the upper end of the sample cloth 1.
In order to enable the upper base 43 to be hung at the upper end of the sample cloth 1, the reinforcement sheet 2 at the upper end of the sample cloth 1 is glued, then the height adjusting mechanism 4 comprises a supporting upright 41 internally provided with a driving motor, one side surface of the bottom end of the supporting upright 41 is fixedly connected with a lower base 42, one side of the upper end of the supporting upright 41 is provided with the upper base 43, one side surface of the middle part of the supporting upright 41 is provided with a movable groove 44 in a penetrating mode, the inner walls of the upper end and the lower end of the movable groove 44 are rotatably connected with an adjusting screw 45 through bearings, one side surface of the upper base 43 is in threaded sleeve joint with the outer surface of the adjusting screw 45 through a convex block, one side surface of the upper base 43 is in sliding joint with a sliding groove formed in the opposite side surface of the supporting upright 41 through a sliding block, so that the adjusting screw 45 is connected with the outer surface of an output shaft of the driving motor in the supporting upright 41 through a coupling, the driving motor is further enabled to control the adjusting screw 45 to rotate at a uniform speed, the upper base 43 moves up and down on the outer surface of the adjusting screw 45 under the action of the sliding groove and then the length of the adjusting screw 45 is adapted to the reinforcement sheet 2 at the outer surface of the upper end and the lower end of the sample cloth 1.
Referring to fig. 7 to 8, the clamping mechanism 5 performs a closing operation on the V-shaped open reinforcing sheet 2, so that the reinforcing sheet 2 is adhered to the outer surfaces of the upper and lower ends of the sample cloth 1.
In order to close the opened reinforcing sheet 2 so as to bond the reinforcing sheet 2 on the outer surfaces of the upper end and the lower end of the sample cloth 1, two ends of the reinforcing sheet 2 are required to be extruded, in order to realize extrusion, the clamping mechanism 5 is a cross-shaped movable bottom plate 51, the movable bottom plate 51 is uniformly distributed on the lower surface of the upper base 43 and the upper surface of the lower base 42, clamping plates 52 distributed in an inverted splayed shape are hinged on the outer surfaces of the two ends of the movable bottom plate 51 through hinge shafts, clamping blocks 53 with inner surfaces distributed in a toothed shape are fixedly connected to one side surface of the clamping plates 52, the inner surfaces of the clamping blocks 53 are in sliding contact with the outer surfaces of the reinforcing sheet 2, in order to prevent the reinforcing sheet 2 on the upper base 43 from falling off, vacuum chucks 54 distributed in a rectangular array are fixedly connected to the upper surface of the middle part of the movable bottom plate 51, and the adsorption end surfaces of the vacuum chucks 54 are in adsorption contact with the lower surface of the reinforcing sheet 2, and the clamping blocks 53 are driven to inwards overturn and shrink through the two clamping plates 52, so that the clamping blocks 53 which move relatively can extrude the reinforcing sheet 2 to bond the two ends of the sample cloth 1.
In order to drive the clamping plate 52 to drive the clamping block 53 to automatically shrink, the material clamping mechanism 5 further comprises a driving cavity 55 arranged in the upper base 43 and the lower base 42, a shrinkage cylinder 56 is arranged on the inner bottom wall of the driving cavity 55, a telescopic rod 57 is fixedly connected to the lower surface of the middle part of the movable bottom plate 51, the outer surface of the telescopic rod 57 penetrates through the driving cavity 55 and is fixedly connected with the surface of a piston rod of the shrinkage cylinder 56, a compression spring 58 is fixedly sleeved on the outer surface of the telescopic rod 57, the free end of the compression spring 58 is fixedly connected with the lower surface of the upper base 43 and the upper surface of the lower base 42 respectively, in order to realize the rapid inward shrinkage of the clamping plate 52, a limit frame 59 with a conical groove is fixedly connected in the middle part between the lower surface of the upper base 43 and the upper surface of the lower base 42, the limit frame 59 is covered on the outer surface of the clamping plate 52, a drying box 60 is arranged on one side surface of the supporting upright post 41, after the reinforcing plate 2 is bonded, the clamping cylinder 35 drives the sample cloth 1 to horizontally move and stay to the drying box 60, the reinforcing plate 2 at the upper end of the sample cloth 1 is solidified by the heating element, and the sample cloth is driven to horizontally move from the slide rail 32 to the slide rail under the action of the clamping cylinder 35 to drive the sample 1 to horizontally move to the sample 1 to realize the test.
Referring to fig. 10 to 12, the clamping mechanism 7 clamps the outer surfaces of the reinforcing sheets 2 at both ends of the sample cloth 1.
In order to clamp the upper end and the lower end of the sample cloth 1 so as to realize powerful test on the stretching of the sample cloth, the clamping mechanism 7 comprises a processing table 71 supported by a base, another processing table 71 which is oppositely arranged is arranged above the processing table 71, an action cavity 72 and a linkage cavity 73 are respectively arranged in the two processing tables 71, a double-head bidirectional screw 74 is rotatably connected in the action cavity 72 through a bearing, the outer surfaces of the two ends of the double-head bidirectional screw 74 extend to the inside of the linkage cavity 73, clamping plates 75 with toothed surfaces and hooks are sleeved on the outer surfaces of the two ends of the double-head bidirectional screw 74 in a threaded manner, the two ends of the lower surface of the clamping plates 75 are in sliding connection with the upper surface of the processing table 71 through another sliding block and another sliding groove, the inner surfaces of the clamping plates 75 are in sliding contact with the outer surfaces of the reinforcing sheets 2, the double-head bidirectional screw 74 is driven to rotate through another driving motor in the processing table 71, so that the oppositely arranged clamping plates 75 perform relative motion, the toothed surfaces of the double-head bidirectional screw 74 and the reinforcing sheets 2 are rough and toothed surfaces, the clamping plates can clamp the protruding parts between the strong hooks and the sample cloth, and the sample can be prevented from slipping down.
In order to balance the stress of the upper end and the lower end of the clamping plate 75, so that the clamping of the sample cloth 1 can be better realized, the sample cloth is stretched, then the clamping mechanism 7 further comprises a unidirectional screw 76 which is oppositely arranged, one end outer surface of the unidirectional screw 76 is in threaded sleeve joint with one side surface of the upper end of the clamping plate 75, one end outer surfaces of the two unidirectional screws 76 are rotatably connected with the surface of a supporting side plate of the processing table 71 through bearings, belt pulleys 77 are fixedly sleeved on one end outer surfaces of the two unidirectional screws 76 and two end outer surfaces of the double-end bidirectional screw 74, a transmission belt 78 is connected with the outer surfaces of the upper belt pulley 77 and the lower belt pulley 77 in a transmission mode, and the transmission belt 78 penetrates through the linkage cavity 73.
Through setting up the clamping mechanism 7 in the clamping device, can realize that the sample cloth 1 that treats tensile is tight at both ends, in the in-process of adjusting, move the sample cloth 1 that has reinforcing plate 2 to bond through clamping cylinder 35 between two clamping plates 75 on upper and lower two processing tables 71, drive double-end bi-directional screw 74 through another driving motor in the processing table 71 and rotate, thereby make the relative clamping plate 75 that sets up carry out relative motion, make its toothed surface and reinforcing plate 2 rough surface that has the tooth trace press from both sides tightly, and the position of clamping plate 75 crotch can grasp the bulge position between reinforcing plate and the sample cloth 1, can avoid landing when tensile, and through the action of belt pulley 77 and drive belt 78, make two unidirectional screw 76 that set up relatively and double-end bi-directional screw 74 realize synchronous rotation, thereby realize the upper and lower end simultaneous propulsion of clamping plate 75, make clamping plate 75 realize the centre gripping to sample cloth 1 and do not slide down when stretching, make the stability to the glass fiber net cloth centre gripping when detecting, and enough when clamping, further accurate result of detection.
Referring to fig. 13 to 14, the stretching mechanism 6 stretches the upper end of the sample cloth 1, thereby completing the tensile strength test operation.
In order to enable the processing table 71 at the upper end to adapt to the length of the sample cloth 1 and realize stretching of the clamped sample cloth 1 to carry out a tensile strength test and measure a specific value of the tensile force, the stretching mechanism 6 comprises a supporting beam 61 fixedly connected to one side surface of the processing table 71 at the lower end, a hydraulic press 62 is fixedly connected to the lower surface of the supporting beam 61, a tension pressure sensor 63 is fixedly connected to the surface of a piston rod of the hydraulic press 62, the stressed end surface of the tension pressure sensor 63 is fixedly connected with the upper surface of the processing table 71 at the upper end, the hydraulic press 62 is arranged to enable the piston rod of the hydraulic press 62 to drive the processing table 71 at the lower surface of the tension pressure sensor 63 to move up and down, and when the processing table 71 at the upper end moves upwards through the action of the hydraulic press 62, the sample cloth 1 is stretched until the sample cloth 1 breaks, and the specific value of the tensile force is measured by the tension pressure sensor 63 and recorded.
In order to conduct guiding and limiting when the upper end processing table 71 stretches and buffer instantaneous force when the sample cloth 1 breaks, the stretching mechanism 6 further comprises a concave plate 64 which is arranged oppositely, one side surface of the concave plate 64 is fixedly connected with one side surface of the supporting beam 61, the inner surface of the concave plate 64 is slidably connected with the outer surface of the upper end processing table 71, balls 65 are fixedly arranged on opposite sides of the inner surface of the concave plate 64 in a rectangular array distribution mode, the outer surface of the balls 65 is slidably connected with the outer surface of the upper end processing table 71, the upper end processing table 71 penetrates through the concave plate 64 and rolls on the outer surface of the balls 65 on the inner surface of the concave plate 64, guiding and limiting are achieved, and when the sample cloth 1 breaks, the instantaneous force is buffered under the rolling of the balls 65, so that damage of equipment caused by broken instantaneous force can be prevented, and therefore the service life is shortened.
By arranging the stretching mechanism 6 in the clamping device, the upper end of the clamped sample cloth 1 can be stretched to finish a tensile strength test, in the adjusting process, a hydraulic press 62 is arranged to enable a piston rod of the hydraulic press 62 to drive a processing table 71 on the lower surface of a tension pressure sensor 63 to move up and down, when the processing table 71 on the upper end moves upwards through the action of the hydraulic press 62, the sample cloth 1 is stretched until the sample cloth 1 breaks, a specific value of the tensile force is measured by the tension pressure sensor 63 and recorded, when the upper end processing table 71 moves upwards through the control of the hydraulic press 62, the processing table 71 passes through a concave plate 64 and rolls on the outer surface of a ball 65 on the inner surface of the concave plate 64, so that guiding limit is realized, and when the sample cloth 1 breaks, instantaneous force is buffered under the rolling of the ball 65, so that equipment damage caused by the broken instantaneous force can be prevented, and the service life is shortened.
Working principle: in a specific embodiment, clamping claws of a clamping cylinder 35 at one end of a self-moving slide rail 32 at one side of a support panel 31 are uniformly distributed at the upper end and the lower end of a sample cloth 1 for clamping, and the sample cloth 1 is driven to horizontally move to the right to a gluing station by the self-moving slide rail 32 after being clamped;
Before moving, the reinforcing sheet 2 with the inner surface smeared with epoxy resin glue is manually placed on the upper surface of the movable bottom plate 51, so that the rough outer surface of the reinforcing sheet 2 is contacted with the inner surface of the clamping block 53, and the lower surface of the reinforcing sheet 2 is adsorbed by the vacuum chuck 54;
the horizontal movement of the mounting plate 34 drives the sample cloth 1 at one side of the clamping cylinder 35 to move between the upper base 43 and the lower base 42, at the moment, the driving motor is enabled to act to control the adjusting screw 45 to rotate at a constant speed, and the upper base 43 moves up and down on the outer surface of the adjusting screw 45 under the action of the sliding groove and the sliding block, so that the length of the sample cloth 1 is adapted;
then, the shrinkage cylinder 56 in the cavity 55 is driven to act, so that a piston rod of the shrinkage cylinder is pulled downwards to stretch the shrinkage rod 57, the movable bottom plate 51 can be moved downwards under the assistance of the compression spring 58, the hinged clamping plate 52 is led by the conical groove of the limiting frame 59 to shrink inwards, the shrinkage of the reinforcing sheet 2 is realized, the reinforcing sheet 2 is bonded on the upper end surface and the lower end surface of the sample cloth 1, in the process of the action of the clamping mechanism 5, the clamping jaw of the clamping cylinder 35 keeps clamping the sample cloth 1, after the reinforcing sheet 2 is bonded, the clamping cylinder 35 drives the sample cloth 1 to move horizontally and stay to the drying box 60, the reinforcing sheet 2 at the upper end and the lower end of the sample cloth 1 is solidified by the heating element, and the clamping cylinder 35 drives the sample cloth 1 to move horizontally to the clamping device through the drying box 60 under the action of the self-moving slide rail 32 after solidification to realize a test;
The clamping cylinder 35 moves the sample cloth 1 with the reinforcing sheet 2 bonded at two ends between the two clamping plates 75 on the upper and lower processing tables 71, the other driving motor in the processing table 71 drives the double-headed bidirectional screw 74 to rotate, so that the oppositely arranged clamping plates 75 relatively move, the toothed surfaces of the clamping plates are clamped with the rough toothed outer surfaces of the reinforcing sheet 2, the convex parts between the reinforcing sheet and the sample cloth 1 can be clamped by the hooked parts of the clamping plates 75, sliding during stretching can be avoided, and the two oppositely arranged unidirectional screws 76 and the double-headed bidirectional screw 74 synchronously rotate through the actions of the belt pulley 77 and the driving belt 78, so that the upper end and the lower end of the clamping plates 75 are simultaneously pushed, and the clamping plates 75 clamp the sample cloth 1 and do not slide during stretching;
after the two ends of the sample cloth 1 are clamped, the clamping cylinder 35 is loosened, the piston rod of the clamping cylinder drives the processing table 71 on the lower surface of the tension pressure sensor 63 to move up and down through the action of the hydraulic press 62, when the processing table 71 on the upper end moves upwards through the action of the hydraulic press 62, the sample cloth 1 is stretched until the sample cloth 1 breaks, a specific value of the tension force is measured by the tension pressure sensor 63 and recorded, the processing table 71 on the upper end passes through the concave plate 64 when moving upwards and rolls on the outer surface of the ball 65 on the inner surface of the concave plate 64, so that the guiding limit is realized, and when the sample cloth 1 breaks, the instantaneous force is buffered under the rolling of the ball 65, so that the damage of equipment caused by the broken instantaneous force can be prevented, and the service life is shortened.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (10)
1. A method for testing stretching strength of alkali-resistant glass fiber mesh cloth is characterized by comprising the following steps: the testing method comprises the following steps:
1) Sampling: naturally unreeling alkali-resistant glass fiber mesh cloth from a reel for a certain length on a flat table top, keeping the alkali-resistant glass fiber mesh cloth in an original state as far as possible under the action of external force when unreeling, and then cutting out 5 alkali-resistant glass fiber mesh sample cloths (1) with consistent sizes by scissors;
2) Glue reinforcement sheet (2): preparing a gluing device, placing a paperboard type reinforcing sheet (2) with an inner surface coated with epoxy resin glue at the upper end and the lower end of the gluing device in a V shape, placing the sample cloth (1) at the upper end and the lower end of the gluing device, respectively and simultaneously pasting the reinforcing sheet (2) at the two ends of the sample cloth, enabling the two ends of the sample cloth (1) to be in a clamped state in the middle of the reinforcing sheet (2), and bonding and solidifying;
3) And (3) testing: the two ends of the hardening sample cloth (1) glued with the reinforcing sheet (2) are clamped in the middle of the clamping device and locked, the sample cloth (1) is stretched upwards to break at a constant speed, the maximum force of the sample cloth (1) during breaking is recorded, at least 5 effective data are needed for each group of tests, and the average value is calculated as the stretching breaking strength of the fabric.
2. The method for testing the tensile strength of the alkali-resistant glass fiber mesh cloth according to claim 1, which is characterized by comprising the following steps of: one side of the gluing device and one side of the clamping device are provided with a horizontal moving mechanism (3), the gluing device comprises a height adjusting mechanism (4) and a clamping mechanism (5), and the clamping device comprises a stretching mechanism (6) and a clamping mechanism (7);
the horizontal moving mechanism (3) horizontally clamps two ends of the cut sample cloth (1) and horizontally moves at a uniform speed, so that the sample cloth (1) is subjected to gluing action and testing action;
wherein the height adjusting mechanism (4) performs a height adjusting action on the upper end part of the gluing device, so that the inner surface of the reinforcing sheet (2) at the upper end is contacted with the outer surface of the upper end of the sample cloth (1);
the clamping mechanism (5) performs a closing action on the V-shaped opened reinforcing piece (2), so that the reinforcing piece (2) is adhered to the outer surfaces of the upper end and the lower end of the sample cloth (1);
The clamping mechanism (7) clamps the outer surfaces of the reinforcing sheets (2) at the two ends of the sample cloth (1);
the stretching mechanism (6) stretches the upper end of the sample cloth (1) so as to complete the tensile strength testing action.
3. The method for testing the tensile strength of the alkali-resistant glass fiber mesh cloth according to claim 2, which is characterized by comprising the following steps of: horizontal migration mechanism (3) are including supporting panel (31), one side fixed surface of supporting panel (31) is connected with from removing slide rail (32), from the last lower extreme of removing slide rail (32) is provided with guide slot (33), two guide slot (33) are all offered one side surface of supporting panel (31), the inner wall slip joint of guide slot (33) has mounting panel (34), the surface of mounting panel (34) with from the surface slip joint of removing slide rail (32), the inside clamping cylinder (35) that distributes about being of one end of mounting panel (34), the draw-in groove has been seted up on the clamping jaw surface of clamping cylinder (35), the internal surface of clamping jaw with the surface sliding contact of appearance cloth (1).
4. The method for testing the tensile strength of the alkali-resistant glass fiber mesh cloth according to claim 2, which is characterized by comprising the following steps of: the height adjusting mechanism (4) comprises a supporting column (41) with a driving motor installed inside, a lower base (42) is fixedly connected to one side surface of the bottom end of the supporting column (41), an upper base (43) is arranged on one side of the upper end of the supporting column (41), a movable groove (44) is formed in the middle of one side surface of the supporting column (41) in a penetrating mode, an adjusting screw (45) is rotatably connected to the inner walls of the upper end and the lower end of the movable groove (44) through bearings, one side surface of the upper base (43) is in threaded sleeve joint with the outer surface of the adjusting screw (45) through a protruding block, and one side surface of the upper base (43) is in sliding joint with a sliding groove formed in the surface of the opposite side of the supporting column (41) through a sliding block.
5. The method for testing the tensile strength of the alkali-resistant glass fiber mesh cloth according to claim 4, which is characterized in that: the utility model discloses a material clamping mechanism, including base (42) and reinforcing sheet (2), including base (51), clamping mechanism (5), movable bottom plate (51) evenly distributed be in the lower surface of upper base (43) and the upper surface of lower base (42), the both ends surface of movable bottom plate (51) all articulates through the articulated shaft has splint (52) that are the distribution of falling the eight character, one side fixed surface of splint (52) is connected with clamp splice (53) that the interior surface is the dentate distribution, the interior surface of clamp splice (53) with the surface sliding contact of reinforcing sheet (2), the middle part upper surface fixedly connected with of movable bottom plate (51) is vacuum chuck (54) that the rectangle array distributes, the adsorption terminal surface of vacuum chuck (54) with the lower surface adsorption contact of reinforcing sheet (2).
6. The method for testing the tensile strength of the alkali-resistant glass fiber mesh cloth according to claim 5, which is characterized in that: the material clamping mechanism (5) is characterized in that the material clamping mechanism further comprises a driving cavity (55) formed in the upper base (43) and the lower base (42), a shrinkage cylinder (56) is mounted on the inner bottom wall of the driving cavity (55), a telescopic rod (57) is fixedly connected to the lower surface of the middle of the movable bottom plate (51), the outer surface of the telescopic rod (57) penetrates through and extends to the driving cavity (55) and is fixedly connected with the surface of a piston rod of the shrinkage cylinder (56), a compression spring (58) is fixedly sleeved on the outer surface of the telescopic rod (57), the free end of the compression spring (58) is fixedly connected with the lower surface of the upper base (43) and the upper surface of the lower base (42) respectively, a limit frame (59) with a conical groove formed in the middle of the lower surface of the lower base (42) in a penetrating mode is fixedly connected, the limit frame (59) is covered on the outer surface of the clamping plate (52), and a drying box (60) is arranged on one side surface of the supporting upright (41).
7. The method for testing the tensile strength of the alkali-resistant glass fiber mesh cloth according to claim 2, which is characterized by comprising the following steps of: the clamping mechanism (7) comprises a processing table (71) supported by a base, the other processing table (71) which is oppositely arranged is arranged above the processing table (71), an action cavity (72) and a linkage cavity (73) are respectively arranged in the processing table (71), a double-head bidirectional screw (74) is rotatably connected in the action cavity (72) through a bearing, the outer surfaces of the two ends of the double-head bidirectional screw (74) extend to the inside of the linkage cavity (73), clamping plates (75) with toothed surfaces and hooks are sleeved on the outer surfaces of the two ends of the double-head bidirectional screw (74) in a threaded mode, and the two ends of the lower surface of each clamping plate (75) are in sliding connection with the upper surface of the processing table (71) through another sliding block and another sliding groove, and the inner surfaces of the clamping plates (75) are in sliding contact with the outer surfaces of the reinforcing sheets (2).
8. The method for testing the tensile strength of the alkali-resistant glass fiber mesh cloth according to claim 7, which is characterized in that: clamping mechanism (7) is still including being relative unidirectional screw (76) that set up, unidirectional screw (76) one end surface with the upper end one side surface screw thread of grip block (75) cup joints, two unidirectional screw (76) one end surface pass through the bearing with the support curb plate surface rotation of processing platform (71) is connected, two unidirectional screw (76) one end surface with the both ends surface of double-end bi-directional screw (74) has all fixedly cup jointed belt pulley (77), and upper and lower a set of the surface transmission of belt pulley (77) is connected with driving belt (78), driving belt (78) run through linkage cavity (73).
9. The method for testing the tensile strength of the alkali-resistant glass fiber mesh cloth according to claim 8, which is characterized by comprising the following steps: the stretching mechanism (6) comprises a supporting beam (61) fixedly connected to one side surface of the processing table (71) at the lower end, a hydraulic press (62) is fixedly connected to the lower surface of the supporting beam (61), a tension pressure sensor (63) is fixedly connected to the surface of a piston rod of the hydraulic press (62), and the surface of a stress end of the tension pressure sensor (63) is fixedly connected with the upper surface of the processing table (71) at the upper end.
10. The method for testing the tensile strength of the alkali-resistant glass fiber mesh cloth according to claim 9, which is characterized in that: the stretching mechanism (6) further comprises a concave plate (64) which is oppositely arranged, one side surface of the concave plate (64) is fixedly connected with one side surface of the supporting beam (61), the inner surface of the concave plate (64) is slidably connected with the outer surface of the processing table (71) at the upper end, balls (65) are fixedly installed on opposite sides of the inner surface of the concave plate (64) in a rectangular array distribution mode, and the outer surface of the balls (65) is slidably connected with the outer surface of the processing table (71) at the upper end.
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| CN117110060B (en) | 2023-12-26 |
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