Ceramic fiber paper breaking test mechanism

Abstract

The invention is applicable to the field of testing mechanisms, and provides a ceramic fiber paper fracture testing mechanism which comprises a feeding channel, a receiving channel and a base plate, a rectangular gap matched with the base plate is arranged between the feeding channel and the receiving channel, and the feeding channel, the receiving channel and the base plate are fixedly arranged respectively. And a round paper sheet conveying mechanism is arranged between the feeding channel and the receiving channel. When the device is used, the edge of a round aluminum silicate fiber paper sheet can be folded in a gap between the pressing cylinder and the pressing inner container to form multiple wrinkles, at the moment, the pressing motor drives the driving disc to rotate by a certain angle, and then the inclined groove can drive all the vertical pressing rods to move inwards; all the vertical pressing rods, the expansion guide rods and the folding pressing rods can move inwards in the expansion sliding blocks until the folding pressing rods are attached to the press-fit inner container, the torsion motor drives the pipe shaft, the driving disc and the press-fit disc to twist back and forth by 30 degrees, and all wrinkles on the edge of the circular aluminum silicate fiber paper can be rolled back and forth by the folding pressing rods.

Description

Technical Field

[0001] The present invention belongs to the field of testing mechanisms, and particularly relates to a ceramic fiber paper breaking test mechanism. Background Art

[0002] With the development of industrial technology, modern testing mechanism technology has become more and more perfect. Aluminum silicate fiber belongs to a kind of ceramic fiber. Ceramic fiber paper is made of selected aluminum silicate ceramic fiber cotton as the main raw material by a wet forming process. Ceramic fiber is used in the fields of heat insulation and sealing materials for high-temperature equipment. During the production process of ceramic fiber paper, its fracture resistance performance needs to be tested.

[0003] The existing testing method for ceramic fiber paper requires folding the ceramic fiber paper repeatedly, and then observing whether the thickness of the bent part of the ceramic fiber paper becomes thinner or there is a fracture. The ceramic fiber paper usually needs to be folded hundreds or even thousands of times at the crease to observe whether the crease becomes thinner or there is a fracture, and many experiments are also required to accurately master the fracture resistance performance of the ceramic fiber paper. Summary of the Invention

[0004] The purpose of the present invention is to provide a ceramic fiber paper breaking test mechanism in view of the deficiencies of the prior art. When the device is in use, many folds will be formed at the edge of the circular aluminum silicate fiber paper in the gap between the pressing cylinder and the pressing inner liner. At this time, the pressing motor drives the driving disk to rotate a certain angle, and then the inclined groove drives all the vertical pressing rods to move inward. All the expansion guide rods and folding pressing rods will move inward with the expansion slider until the folding pressing rod fits against the pressing inner liner. At the same time, the torsion motor drives the tube shaft, the driving disk, and the pressing disk to twist back and forth by thirty degrees. All the folds at the edge of the circular aluminum silicate fiber paper will be repeatedly rolled by the folding pressing rod, so as to solve the problems mentioned in the background art.

[0005] To solve the above problems, the present invention provides the following technical solutions: A ceramic fiber paper breaking test mechanism, including a feeding channel, a receiving channel, and a base plate. There is a rectangular gap matching the base plate between the feeding channel and the receiving channel. The feeding channel, the receiving channel, and the base plate are respectively fixedly arranged. A round paper sheet conveying mechanism is arranged in the middle of the feeding channel and the receiving channel; A telescopic channel is arranged in the middle of the base plate. A pressing cylinder is slidably arranged inside the telescopic channel. An elevating mechanism matching the pressing cylinder is arranged below the pressing cylinder; A cantilever arm is arranged on the side wall of the base plate. A torsion motor is fixedly installed at the top of the cantilever arm. A surrounding shaft is arranged on the output shaft of the torsion motor. A pipe shaft is fixedly arranged at the end of the surrounding shaft. The axis of the pipe shaft coincides with the axis of the output shaft of the torsion motor; A driving disc is rotatably arranged at the top of the pipe shaft. A pressing disc is fixedly arranged at the bottom of the pipe shaft. Six expansion sliders in an annular array are fixedly arranged on the top surface of the pressing disc. An expansion guide rod is slidably installed inside each expansion slider. A folding pressing rod is arranged at the bottom of the outer end of the expansion guide rod. A pressing inner liner is rotatably arranged at the bottom of the pressing disc. The pressing inner liner can be inserted into the pressing cylinder; The expansion guide rod is connected to the closing mechanism.

[0006] During use, the round aluminum silicate fiber paper material is pushed between the pressing cylinder and the pressing inner liner. The pressing cylinder is pushed up to sleeve the pressing inner liner. The part of the edge of the round aluminum silicate fiber paper sheet exposed outside will fold many wrinkles in the gap between the pressing cylinder and the pressing inner liner. At this time, all the expansion guide rods and folding pressing rods will move inward in the expansion sliders until the folding pressing rods fit the pressing inner liner. At the same time, the torsion motor drives the pipe shaft, the driving disc, and the pressing disc to twist back and forth by 30 degrees. All the wrinkles at the edge of the round aluminum silicate fiber paper sheet will be rolled back and forth by the folding pressing rods. After the wrinkles at the edge of the round aluminum silicate fiber paper sheet are folded and rolled thousands of times, the staff can observe the thinning or fracture at the crease. After multiple tests, the physical properties of the aluminum silicate fiber paper's resistance to folding can be mastered.

[0007] Further, the elevating mechanism includes a fixed frame at the bottom of the base plate. An electric push rod is arranged at the bottom of the fixed frame. The bottom of the pressing cylinder is connected to the telescopic rod of the electric push rod.

[0008] During use, the electric push rod drives the pressing cylinder to be pushed up to sleeve the pressing inner liner. The edge of the round aluminum silicate fiber paper sheet will fold many wrinkles in the gap between the pressing cylinder and the pressing inner liner.

[0009] Further, the circular paper sheet conveying mechanism includes a feeding roller rotatably arranged at the left end of the feeding channel, and a winding roller rotatably arranged at the right end of the receiving channel. The winding roller is connected to the output shaft of the stepping motor. The paper material is drawn out from the outside of the feeding roller and connected to the winding roller. A continuous material channel matching the paper material is arranged between the feeding channel and the receiving channel. The paper material passes through the gap between the pressing inner liner and the pressing cylinder. A circular paper sheet punching mechanism matching the paper material is arranged at the top of the feeding channel.

[0010] During use, the stepping motor drives the winding roller and draws the paper material forward step by step, and the paper material will be conveyed alternately in the feeding channel and the receiving channel.

[0011] Further, the circular paper sheet punching mechanism includes a support bridge at the top of the feeding channel. A hydraulic press is arranged at the top of the support bridge. A punching disc is arranged on the telescopic rod of the hydraulic press. An annular array of punching knives is arranged at the bottom of the punching disc. A punching groove matching the punching knife is arranged on the top surface of the feeding channel.

[0012] During use, when the hydraulic press drives the punching disc and the punching knives to move downward, the punching knives are inserted into the punching groove for cutting. The punching slits left on the paper material will form tearing grooves. When the pressing cylinder and the pressing inner liner penetrate each other, the circular aluminum silicate fiber paper sheet will break at the position of the tearing groove, which can realize automatic feeding for multiple tests.

[0013] Further, the closing mechanism includes a pressing motor fixedly arranged inside the pipe shaft. The driving disc is connected to the output shaft of the pressing motor. Six annularly arranged inclined grooves are arranged on the side wall of the driving disc. A vertical pressing rod is arranged at the top of the inner end of the expansion guide rod, and the vertical pressing rods are respectively inserted into the inclined grooves.

[0014] During use, the pressing motor drives the driving disc to rotate by a certain angle. Then, the inclined grooves will drive all the vertical pressing rods to move inward. All the vertical pressing rods, expansion guide rods, and folding pressing rods will move inward in the expansion slider until the folding pressing rods fit against the pressing inner liner.

[0015] Further, a circular shell is rotatably sleeved outside the folding pressing rod.

[0016] During use, the circular shell outside the folding pressing rod reduces the friction force with the aluminum silicate fiber paper, which can make the repeated folding operation smoother.

[0017] Further, an arc chamfer is arranged at the outer edge of the bottom of the pressing inner liner, and a butt arc chamfer is arranged at the inner edge of the top of the pressing cylinder.

[0018] During use, the arc chamfer of the bottom outer edge of the pressed liner and the arc chamfer of the top inner edge of the pressed tube can be inserted more smoothly when they are connected to each other, thereby preventing the pressed liner and the pressed tube from shifting in the vertical direction.

[0019] Furthermore, a circular array of air holes is provided on the side wall of the pressing cylinder.

[0020] During use, when the pressed liner and the pressed tube are interlaced with each other, excess air inside the pressed tube will be discharged from the vent holes.

[0021] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0022] First, when the device is in use, the circular aluminum silicate fiber paper is pushed between the pressing cylinder and the pressing liner, and the electric push rod drives the pressing cylinder to push up and put on the pressing liner. The exposed part of the edge of the circular aluminum silicate fiber paper will fold into many wrinkles in the gap between the pressing cylinder and the pressing liner. At this time, the pressing motor drives the driving disk to rotate a certain angle, and then the inclined groove drives all the vertical pressure rods to move inward. All the vertical pressure rods, expansion guide rods, and folding pressure rods will move inward on the expansion slider until the folding pressure rod fits the pressing liner. At the same time, the torsion motor drives the tube shaft, driving disk, and pressing disk to twist back and forth thirty degrees. All the wrinkles on the edge of the circular aluminum silicate fiber paper will be crushed back and forth by the folding pressure rod. After the wrinkles on the edge of the circular aluminum silicate fiber paper have been folded and crushed thousands of times, the staff can observe the thinning or breakage of the creases. After multiple tests, the physical properties of the aluminum silicate fiber paper's anti-folding can be mastered.

[0023] Secondly, the stepper motor drives the winding roller and pulls the paper material forward step by step. When the hydraulic press drives the punching disc and the punching knife downward, the punching knife is inserted into the punching groove to cut. The punching seam left on the paper material will form a tear groove. When the pressing cylinder and the pressing liner are intertwined with each other, the round aluminum silicate fiber paper will break at the position of the tear groove, which can automatically feed the material to achieve multiple tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the present invention.

[0025] Figure 2 Schematic diagram of the punching disk of the present invention.

[0026] Figure 3 Schematic diagram of the base plate of the present invention.

[0027] Figure 4 Schematic diagram of the base plate of the present invention from a second viewing angle.

[0028] Figure 5Schematic diagram of the press-fitting inner liner of the present invention.

[0029] Figure 6 Schematic diagram of the expansion guide rod of the present invention.

[0030] Explanation of reference numerals in the drawings:

[0031] Feeding channel 1, receiving channel 101, feeding roller 102, winding roller 103, paper material 104, stepping motor 105, base plate 2, support bridge 3, hydraulic press 301, punching disc 302, punching knife 303, punching groove 304, cantilever arm 4, torsion motor 401, surrounding shaft 402, driving disc 5, inclined groove 501, press-fitting inner liner 6, press-fitting disc 601, expansion guide rod 602, expansion slider 603, vertical pressing rod 604, folding pressing rod 605, fixed frame 7, electric push rod 701, press-fitting cylinder 702, ventilation hole 703, press-fitting motor 8, pipe shaft 801. Detailed implementation manners

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order.

[0033] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0034] The present invention provides a ceramic fiber paper breaking test mechanism, as Figures 1-6As shown in the figure, it includes a feeding channel 1, a receiving channel 101, and a base plate 2. A rectangular gap matching the base plate 2 is provided between the feeding channel 1 and the receiving channel 101. The feeding channel 1, the receiving channel 101, and the base plate 2 are respectively fixedly arranged. A circular paper sheet conveying mechanism is arranged in the middle of the feeding channel 1 and the receiving channel 101; a telescopic channel is arranged in the middle of the base plate 2, and a pressing cylinder 702 is slidably arranged inside the telescopic channel. An elevating mechanism matching the pressing cylinder 702 is arranged below the pressing cylinder 702; a cantilever arm 4 is arranged on the side wall of the base plate 2. A torsion motor 401 is fixedly installed at the top of the cantilever arm 4. A surrounding shaft 402 is arranged on the output shaft of the torsion motor 401. A pipe shaft 801 is fixedly arranged at the end of the surrounding shaft 402. The axis of the pipe shaft 801 coincides with the axis of the output shaft of the torsion motor 401; a driving disk 5 is rotatably arranged at the top of the pipe shaft 801. A pressing disk 601 is fixedly arranged at the bottom of the pipe shaft 801. Six expansion sliders 603 arranged in an annular array are fixedly arranged on the top surface of the pressing disk 601. An expansion guide rod 602 is slidably installed inside each expansion slider 603. A folding pressing rod 605 is arranged at the bottom of the outer end of the expansion guide rod 602. A pressing inner liner 6 is rotatably arranged at the bottom of the pressing disk 601. The pressing inner liner 6 can be inserted into the pressing cylinder 702; the expansion guide rod 602 is connected to the closing mechanism.

[0035] In this embodiment, the circular aluminosilicate fiber paper is pushed between the pressing cylinder 702 and the pressing inner liner 6. The pressing cylinder 702 is pushed up to sleeve the pressing inner liner 6. The part of the edge of the circular aluminosilicate fiber paper sheet exposed outside will fold many wrinkles in the gap between the pressing cylinder 702 and the pressing inner liner 6. At this time, all the expansion guide rods 602 and the folding pressing rods 605 will move inward in the expansion sliders 603 until the folding pressing rods 605 fit the pressing inner liner 6. At the same time, the torsion motor 401 drives the pipe shaft 801, the driving disk 5, and the pressing disk 601 to twist back and forth by thirty degrees. All the wrinkles at the edge of the circular aluminosilicate fiber paper sheet will be rolled back and forth by the folding pressing rods. After the wrinkles at the edge of the circular aluminosilicate fiber paper sheet are folded and rolled thousands of times, the staff can observe the thinning or breakage at the crease. After multiple tests, the physical properties of the aluminosilicate fiber paper's resistance to folding can be mastered.

[0036] In a further embodiment of the present invention, as Figures 1-4 shown, the elevating mechanism includes a fixed frame 7 at the bottom of the base plate 2. An electric push rod 701 is arranged at the bottom of the fixed frame 7. The bottom of the pressing cylinder 702 is connected to the telescopic rod of the electric push rod 701.

[0037] In this embodiment, the electric push rod 701 drives the pressing cylinder 702 to push upwards to sleeve the pressing inner liner 6, and many folds will be formed at the edges of the circular aluminosilicate fiber paper sheets in the gap between the pressing cylinder 702 and the pressing inner liner 6.

[0038] In a further embodiment of the present invention, as Figures 1-2 shown, the circular paper sheet conveying mechanism includes a feeding roller 102 rotatably arranged at the left end of the feeding channel 1, a winding roller 103 rotatably arranged at the right end of the receiving channel 101, the winding roller 103 is connected to the output shaft of the stepping motor 105, the paper material 104 is drawn out from the outside of the feeding roller 102 and connected to the winding roller 103, a continuous material channel matching the paper material 104 is arranged between the feeding channel 1 and the receiving channel 101, the paper material 104 passes through the gap between the pressing inner liner 6 and the pressing cylinder 702, and a circular paper sheet punching mechanism matching the paper material 104 is arranged at the top end of the feeding channel 1.

[0039] In this embodiment, the stepping motor 105 drives the winding roller 103 and pulls the paper material 104 to advance step by step, and the paper material 104 will be conveyed through the feeding channel 1 and the receiving channel 101 in an interspersed manner.

[0040] In a further embodiment of the present invention, as Figures 1-2 shown, the circular paper sheet punching mechanism includes a support bridge 3 at the top end of the feeding channel 1, a hydraulic press 301 is arranged at the top end of the support bridge 3, a punching disc 302 is arranged on the telescopic rod of the hydraulic press 301, a ring of punching knives 303 is arranged at the bottom of the punching disc 302, and a punching groove 304 matching the punching knives 303 is arranged on the top surface of the feeding channel 1.

[0041] In this embodiment, during the process of the hydraulic press 301 driving the punching disc 302 and the punching knives 303 to push downwards, the punching knives 303 are inserted into the punching groove 304 for cutting, and the punching slits left on the paper material 104 will form tearing grooves. When the pressing cylinder 702 and the pressing inner liner 6 are interspersed with each other, the circular aluminosilicate fiber paper sheet will break at the position of the tearing grooves, which can automatically supply materials to realize multiple tests.

[0042] In a further embodiment of the present invention, as Figures 1-6 shown, the closing mechanism includes a pressing motor 8 fixedly arranged inside the pipe shaft 801, the driving disc 5 is connected to the output shaft of the pressing motor 8, six annularly arranged inclined grooves 501 are arranged on the side wall of the driving disc 5, a vertical pressing rod 604 is arranged at the top of the inner end of the expansion guide rod 602, and the vertical pressing rods 604 are respectively inserted into the inclined grooves 501.

[0043] In this embodiment, the pressing motor 8 drives the driving disk 5 to rotate by a certain angle. Then, the inclined groove 501 will drive all the vertical pressing rods 604 to move inward. All the vertical pressing rods 604, the expanding guide rods 602, and the folding pressing rods 605 will move inward with the expanding slider 603 until the folding pressing rod 605 fits against the pressing inner liner 6.

[0044] In a further embodiment of the present invention, as Figures 5-6 shown, a circular shell is rotatably sleeved on the outer side of the folding pressing rod 605.

[0045] In this embodiment, the circular shell on the outer side of the folding pressing rod 605 reduces the friction with the aluminosilicate fiber paper, which enables the repeated folding operation to be smoother.

[0046] In a further embodiment of the present invention, as Figures 5-6 shown, an arc chamfer is provided at the outer edge of the bottom of the pressing inner liner 6, and a butt - joint arc chamfer is provided at the inner edge of the top of the pressing cylinder 702.

[0047] In this embodiment, when the arc chamfer at the outer edge of the bottom of the pressing inner liner 6 is butt - jointed with the arc chamfer at the inner edge of the top of the pressing cylinder, it can be inserted more smoothly, thereby preventing the pressing inner liner 6 and the pressing cylinder 702 from shifting in the vertical direction.

[0048] In a further embodiment of the present invention, as Figures 1-4 shown, a circular - arrayed ventilation hole 703 is provided on the side wall of the pressing cylinder 702.

[0049] In this embodiment, when the pressing inner liner 6 and the pressing cylinder 702 are inserted into each other, the excess air inside the pressing cylinder 702 will be discharged from the ventilation holes 703.

[0050] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present invention is not limited by the described action sequence, because according to the present invention, certain steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0051] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the above-mentioned units may have other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or communication connections between each other can be through some interfaces. The indirect couplings or communication connections between devices or units can be in the form of telecommunications or other forms.

[0052] The units described above as separate components may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting the protection scope of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions or other adjustments to the features in the embodiments of the present invention according to the situation without creative efforts, so as to obtain different technical solutions that essentially do not deviate from the concept of the present invention. These technical solutions also belong to the scope of protection of the present invention.

Claims

1. A ceramic fiber paper breaking test mechanism, characterized in that: It includes a feeding channel (1), a receiving channel (101) and a base plate (2). A rectangular gap matching the base plate (2) is provided between the feeding channel (1) and the receiving channel (101). The feeding channel (1), the receiving channel (101) and the base plate (2) are respectively fixedly arranged. A round paper sheet conveying mechanism is arranged in the middle of the feeding channel (1) and the receiving channel (101). A telescopic channel is arranged in the middle of the base plate (2). A pressing cylinder (702) is slidably arranged inside the telescopic channel. A lifting mechanism matching the pressing cylinder (702) is arranged below the pressing cylinder (702). A cantilever arm (4) is arranged on the side wall of the base plate (2). A torsion motor (401) is fixedly installed at the top of the cantilever arm (4). A surrounding shaft (402) is arranged on the output shaft of the torsion motor (401). A pipe shaft (801) is fixedly arranged at the end of the surrounding shaft (402). The axis of the pipe shaft (801) coincides with the axis of the output shaft of the torsion motor (401). A driving disc (5) is rotatably arranged at the top of the pipe shaft (801). A pressing disc (601) is fixedly arranged at the bottom of the pipe shaft (801). Six expansion sliders (603) in annular array are fixedly arranged on the top surface of the pressing disc (601). An expansion guide rod (602) is slidably installed inside each expansion slider (603). A folding pressing rod (605) is arranged at the bottom of the outer end of the expansion guide rod (602). A pressing inner bladder (6) is rotatably arranged at the bottom of the pressing disc (601). The pressing inner bladder (6) can be inserted into the pressing cylinder (702). The expansion guide rod (602) is connected to a closing mechanism.

2. The ceramic fiber paper breaking test mechanism according to claim 1, characterized in that: The lifting mechanism includes a fixed frame (7) at the bottom of the base plate (2). An electric push rod (701) is arranged at the bottom of the fixed frame (7). The bottom of the pressing cylinder (702) is connected to the telescopic rod of the electric push rod (701).

3. The ceramic fiber paper breaking test mechanism according to claim 1, wherein: The round paper sheet conveying mechanism includes a feeding roller (102) rotatably arranged at the left end of the feeding channel (1). A winding roller (103) is rotatably arranged at the right end of the receiving channel (101). The winding roller (103) is connected to the output shaft of a stepping motor (105). A paper material (104) is drawn out from the outside of the feeding roller (102) and connected to the winding roller (103). A continuous material channel matching the paper material (104) is arranged in the middle of the feeding channel (1) and the receiving channel (101). The paper material (104) passes through the gap between the pressing inner bladder (6) and the pressing cylinder (702). A round paper sheet punching mechanism matching the paper material (104) is arranged at the top of the feeding channel (1).

4. A ceramic fiber paper breaking test mechanism according to claim 3, characterized in that: The circular paper sheet punching mechanism includes a support bridge (3) at the top of the feeding channel (1). A hydraulic press (301) is provided at the top of the support bridge (3). A punching disc (302) is provided on the telescopic rod of the hydraulic press (301). An annular array of punching knives (303) is provided at the bottom of the punching disc (302). A punching groove (304) matching the punching knife (303) is provided on the top surface of the feeding channel (1).

5. A ceramic fiber paper breaking test mechanism according to claim 1, characterized in that: The closing mechanism includes a pressing motor (8) fixedly arranged inside the pipe shaft (801). The driving disc (5) is connected to the output shaft of the pressing motor (8). Six annularly arrayed inclined grooves (501) are provided on the side wall of the driving disc (5). An upright pressing rod (604) is provided at the top of the inner end of the expansion guide rod (602). The upright pressing rods (604) are respectively inserted into the inclined grooves (501).

6. A ceramic fiber paper breaking test mechanism according to claim 1, characterized in that: A circular shell is rotatably sleeved outside the folding pressing rod (605).

7. A ceramic fiber paper breaking test mechanism according to claim 1, characterized in that: An arc chamfer is provided at the outer edge of the bottom of the pressing inner liner (6), and a butt arc chamfer is provided at the inner edge of the top of the pressing cylinder (702).

8. A ceramic fiber paper breaking test mechanism according to claim 1, characterized in that: Annularly arrayed ventilation holes (703) are provided on the side wall of the pressing cylinder (702).

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