CN113340706A

CN113340706A - Screen cloth material toughness detection device

Info

Publication number: CN113340706A
Application number: CN202110518376.1A
Authority: CN
Inventors: 陆迪涛
Original assignee: Anhui Kaisheng Screen Weaving Co ltd
Current assignee: Anhui Kaisheng Screen Weaving Co ltd
Priority date: 2021-05-12
Filing date: 2021-05-12
Publication date: 2021-09-03

Abstract

The invention provides a device for detecting the toughness of a screen material, which comprises a supporting leg, wherein a supporting plate is fixedly supported at the top end of the supporting leg, an extrusion mechanism is installed at the bottom end of the supporting plate, a protective groove is formed in the side surface of the supporting plate fixedly installed at the top end of the supporting leg, the extrusion mechanism is installed and supported in the protective groove, a fixing mechanism is installed on the extrusion mechanism, two sides of the extrusion mechanism are respectively clamped in sliding grooves formed in two sides of the supporting plate in a sliding mode, a vertical groove is formed in the inner side of the supporting leg, an observation mechanism is installed in the vertical groove, and the observation mechanism installed on the inner side of the supporting leg observes along with downward sliding when the extrusion mechanism extrudes the screen when the fixing mechanism installed on the extrusion mechanism installed at the bottom end of the supporting plate fixes two sides of the screen and then the guide mechanism assists the middle of the screen. The device for detecting the toughness of the screen material has the advantages of good fixity, strong automation and convenience in comparison and observation.

Description

Screen cloth material toughness detection device

Technical Field

The invention relates to the technical field of material detection, in particular to a device for detecting the toughness of a screen material.

Background

The screen is a necessary product for refining coal mines, iron ores, industries and chemical raw materials, is a composition of tiny cells developing forward in the society, indirectly or directly influences the development of the society, and has a wide application range, such as protection of mechanical equipment, highway guardrails, purse nets of sports places, road green belt protective nets, reinforcing steel bar serving as building industries, highways and bridges, framework support and the like, so that quality detection of the screen needs to be strictly controlled, poor quality is prevented, construction period efficiency is influenced, use cost is improved, safety accidents are caused even more, and the like.

Disclosure of Invention

The invention provides a screen material toughness detection device which is high in toughness detection rigidness and can further know the elasticity of a screen.

In order to solve the above technical problem, the present invention provides a device for detecting toughness of a screen material, comprising: the supporting leg is fixedly supported at the top end of the supporting leg, the extrusion mechanism is mounted at the bottom end of the supporting plate, a protective groove is formed in the side surface of the supporting plate fixedly mounted at the top end of the supporting leg, the extrusion mechanism is mounted and supported in the protective groove, the fixing mechanism is mounted on the extrusion mechanism, two sides of the extrusion mechanism are respectively clamped in sliding grooves formed in two sides of the supporting plate in a sliding manner, a vertical groove is formed in the inner side of the supporting leg, an observation mechanism is mounted in the vertical groove, and the guide mechanisms are mounted at the top ends of two sides of the supporting plate;

when the fixing mechanism arranged on the extrusion mechanism and arranged at the bottom end of the support plate fixes the two sides of the screen and the guide mechanism assists the middle of the screen, the observation mechanism arranged at the inner side of the support leg performs observation along with downward sliding when the extrusion mechanism extrudes the screen.

Preferably, the extrusion mechanism includes first motor, first shaft coupling, fixture block, slider, guide rail, first lead screw, joint supporting shoe and push pedal, install on the first motor first shaft coupling, first shaft coupling opposite side is installed first lead screw, first lead screw outside spiral cup joints installs the slider, slider both sides slidable mounting has the guide rail, the guide rail with first shaft coupling by the fixture block is fixed, the slider top is fixed with by the screw the joint supporting shoe, the joint supporting shoe other end is installed push pedal one side, install fixed establishment in the push pedal.

Preferably, the fixing mechanism comprises a pressing plate, a bottom plate and a locking disc, wherein two sides of the bottom plate are movably arranged on the inner side of the push plate, the pressing plate is arranged at the top end of the bottom plate, the locking disc is arranged at the top end of the pressing plate, and the tightness between the pressing plate and the bottom plate is adjusted by the locking disc in a rotating mode.

Preferably, guiding mechanism includes support, mount, hydraulic pump, hydraulic stem and telescopic link, the scaffold weldment is in the extension board top, install on the support top the mount, the mount internal fixation has the hydraulic pump, the hydraulic pump bottom is connected with the hydraulic stem, hydraulic stem bottom fixed mounting has the telescopic link.

Preferably, the observation mechanism comprises a second motor, a second coupling, a second lead screw, an observation plate, an internal rotation bearing ring and a bearing seat, the bottom end of the second motor is installed at the inner fixed part of the supporting leg, the second motor is provided with the second coupling, the top end of the second coupling is provided with the second lead screw, the internal rotation bearing ring is spirally sleeved on the second lead screw, the internal rotation bearing ring is fixedly installed in the observation plate, the bearing seat is installed at the top end of the second lead screw, and the top end of the bearing seat is fixedly installed inside the supporting leg.

Preferably, the fixed blocks are welded on two sides of the bottom end of the support plate, one end of the guide rail is fixed to the fixed blocks, the bearing is installed at the top end of the first screw rod, and the other side of the bearing is fixedly installed on the fixed blocks.

Preferably, the fixing mechanisms are mounted on two sides of the supporting plate, the extrusion mechanisms connected to the fixing mechanisms on the two sides are communicated, and the mechanisms on the supporting plate are axisymmetric.

Preferably, the telescopic link can extend to both sides, and the telescopic link extends the bottom and all is on same water flat line.

Compared with the related art, the device for detecting the toughness of the screen material has the following beneficial effects:

the invention provides a device for detecting the toughness of a screen material, wherein when a squeezing mechanism is arranged to squeeze and bend a screen to detect the toughness, a first motor is started, the first motor is switched through a first coupler to enable a first screw rod to rotate, when the first screw rod rotates, a sliding block moves inwards under the action of a guide rail fixed by a clamping block, a clamping support block fixed by a screw at the top end of the sliding block moves in a sliding groove in a translation sliding mode along with the movement of the sliding block, a push plate fixed on the inner side of the clamping support block pushes inwards, so that a fixing mechanism arranged on the push plate clamps the screen to fold and bend inwards, the bending degree of the screen can be controlled in real time, the detection on the toughness of the screen is more accurate, meanwhile, manual testing is avoided, and a large amount of time and labor force are wasted.

Through fixed establishment's setting, when installing fixedly to the screen cloth, prevent respectively at the clamp plate bottom with the both ends of screen cloth, the top of bottom plate, then rotating locking dish makes clamp plate and bottom plate carry out the pressfitting to the screen cloth edge, make the screen cloth fix, when the screen cloth is crooked, because bottom plate movable mounting is in the inboard of push pedal, make the bottom plate can rotate under the influence of receiving the screen cloth bending force, prevent when carrying out toughness test to the screen cloth, the screen cloth edge receives folding, lead to screen cloth edge deformation, influence the detection of screen cloth toughness, when fixed to the screen cloth simultaneously, and the operation is simple, the fixity is strong, and is more practical.

Through guiding mechanism's setting, when the screen cloth carries out toughness and detects, need bend to the screen cloth, through the crooked direction of guiding mechanism control screen cloth, the hydraulic pump control hydraulic stem through the mount fixed mounting of support top installation is flexible, make the telescopic link and the screen cloth parallel and level of hydraulic stem bottom installation, according to the different width of screen cloth, to the length control that stretches out and draws back of telescopic link, it is supplementary to have better direction to the crooked direction of screen cloth, can be applicable to wider screen cloth size simultaneously.

Through the setting of observation mechanism, when the screen cloth bending carries out toughness detection, the second motor operation is through the effect of second shaft coupling, make the second lead screw rotate, the second lead screw top is fixed by the bearing frame, can not influence the rotation of second lead screw, and simultaneously, prevent that second lead screw top from receiving the friction, the interior spiral bearing ring of spiral shell joint on the second lead screw removes under the second lead screw pivoted circumstances, interior spiral bearing ring removes and makes the observation board along with removing, the operation of second motor forms the linkage with first motor, make the observation board can change the high position along with the crooked degree of screen cloth, conveniently observe screen cloth toughness, observe rule observation board position through breaking the screen cloth, be used for making the toughness of contrast and analysis screen cloth, it is strong to directly see, and it is more accurate to the detection of screen cloth toughness.

Drawings

FIG. 1 is a schematic perspective view of a preferred embodiment of the present invention;

FIG. 2 is a schematic top plan view of the structure of FIG. 1;

FIG. 3 is a front plan view of the structure shown in FIG. 1;

FIG. 4 is a schematic side view of the structure shown in FIG. 1;

FIG. 5 is a view showing the construction of the pressing mechanism shown in FIG. 1;

FIG. 6 is a schematic view of the securing mechanism shown in FIG. 1;

FIG. 7 is a structural view of the guide mechanism shown in FIG. 1;

fig. 8 is a structural view of the observation mechanism shown in fig. 1.

Reference numbers in the figures: 1. a support leg; 2. a support plate; 3. an extrusion mechanism; 301. a first motor; 302. a first coupling; 303. a clamping block; 304. a slider; 305. a guide rail; 306. a first lead screw; 307. clamping a supporting block; 308. pushing the plate; 4. a fixing mechanism; 401. pressing a plate; 402. a base plate; 403. a locking disc; 5. a guide mechanism; 501. a support; 502. a fixed mount; 503. a hydraulic pump; 504. a hydraulic lever; 505. a telescopic rod; 6. an observation mechanism; 601. a second motor; 602. a second coupling; 603. a second lead screw; 604. an observation plate; 605. an inner rotating bearing ring; 606. a bearing seat; 7. a chute; 8. a protective bath; 9. and (4) standing the groove.

Detailed Description

The invention is further described with reference to the following figures and embodiments.

Referring to fig. 1 to 8, fig. 1 is a schematic perspective view of a preferred embodiment of the present invention, fig. 2 is a schematic top plan view of fig. 1, fig. 3 is a schematic front plan view of fig. 1, fig. 4 is a schematic side view of fig. 1, fig. 5 is a schematic diagram of an extruding mechanism of fig. 1, fig. 6 is a schematic structural diagram of a fixing mechanism of fig. 1, fig. 7 is a structural diagram of a guiding mechanism of fig. 1, and fig. 8 is a structural diagram of an observing mechanism of fig. 1. The method comprises the following steps: the supporting leg 1 is characterized in that the supporting plate 2 is fixedly supported at the top end of the supporting leg 1, the extrusion mechanism 3 is installed at the bottom end of the supporting plate 2, a protective groove 8 is formed in the side surface of the supporting plate 2 fixedly installed at the top end of the supporting leg 1, the extrusion mechanism 3 is installed and supported in the protective groove 8, a fixing mechanism 4 is installed on the extrusion mechanism 3, two sides of the extrusion mechanism 3 are respectively clamped in sliding grooves 7 formed in two sides of the supporting plate 2 in a sliding mode, a vertical groove 9 is formed in the inner side of the supporting leg 1, an observation mechanism 6 is installed in the vertical groove 9, and the guide mechanisms 5 are installed at the top ends of two sides of the supporting plate 2;

when the fixing mechanisms 4 arranged on the extrusion mechanisms 3 arranged at the bottom ends of the support plates 2 are used for fixing the two sides of the screen, the guide mechanisms 5 arranged at the inner sides of the support legs 1 are used for observing along with downward sliding when the extrusion mechanisms 3 extrude the screen, the two ends of the screen are respectively arranged on the fixing mechanisms 4 and then are adjusted by the guide mechanisms 5 welded at the top ends of the support plates 2, the bottom ends of the guide mechanisms 5 are flush with the top ends of the screen, then the top ends of the support legs 1 are started to support the extrusion mechanisms 3 which are in sliding clamping connection with the support plates 2 to operate, the screen is folded and bent, the screen is bent downwards, and meanwhile, the observation plates 604 move downwards along with the bending degree of the screen to observe the toughness of the screen, the position of the discipline observation plate 604 is observed by breaking the screen, so that the screen is used for comparison and analysis of the toughness of the screen, the operation is simple, the automation degree is high, the safety is good, and the observation of the toughness of the screen is obvious.

In a specific implementation process, as shown in fig. 5, the squeezing mechanism 3 includes a first motor 301, a first coupler 302, a clamping block 303, a sliding block 304, a guide rail 305, a first lead screw 306, a clamping support block 307 and a push plate 308, the first coupler 302 is installed on the first motor 301, the first lead screw 306 is installed on the other side of the first coupler 302, the sliding block 304 is installed on the outer side of the first lead screw 306 in a spirally sleeved manner, the guide rails 305 are installed on two sides of the sliding block 304 in a sliding manner, the guide rail 305 and the first coupler 302 are fixed by the clamping block 303, the clamping support block 307 is fixed at the top end of the sliding block 304 by a screw, the other end of the clamping support block 307 is installed on one side of the push plate 308, a fixing mechanism 4 is installed in the push plate 308, when performing the toughness detection on the screen by squeezing bending, the first motor 301 is started, the first motor 301 is switched by the first coupler 302 to enable the first lead screw 306 to rotate, when the first lead screw 306 rotates, the sliding block 304 moves inwards under the action of the guide rail 305 fixed by the clamping block 303, the clamping supporting block 307 fixed by screws at the top end of the sliding block 304 slides in the sliding groove 7 in a translation mode along with the movement of the sliding block 304, the pushing plate 308 fixed on the inner side of the clamping supporting block 307 pushes inwards, the fixing mechanism 4 installed on the pushing plate 308 clamps the screen to be folded and bent inwards, the bending degree of the screen can be controlled in real time, the toughness of the screen can be detected more accurately, manual testing is avoided, and a large amount of time and labor are wasted.

In a specific implementation process, as shown in fig. 6, the fixing mechanism 4 includes a pressing plate 401, a bottom plate 402 and a locking disc 403, two sides of the bottom plate 402 are movably mounted inside the pushing plate 308, the pressing plate 401 is mounted on the top end of the bottom plate 402, the locking disc 403 is mounted on the top end of the pressing plate 401, the tightness between the pressing plate 401 and the bottom plate 402 is rotatably adjusted by the locking disc 403, when the screen is mounted and fixed, two ends of the screen are respectively prevented from being at the bottom end of the pressing plate 401 and the top end of the bottom plate 402, then the locking disc 403 is rotated to press the edges of the screen by the pressing plate 401 and the bottom plate 402, so that the screen is fixed, when the screen is bent, because the bottom plate 402 is movably mounted inside the pushing plate 308, the bottom plate 402 can rotate under the influence of the bending force of the screen, and when the toughness test is performed on the screen, the screen cloth edge receives the folding, leads to screen cloth edge deformation, influences the detection of screen cloth toughness, and easy operation, fixity are strong, and is more practical simultaneously when fixed to the screen cloth.

In the specific implementation process, as shown in fig. 7, the guide mechanism 5 includes a support 501, a fixing frame 502, a hydraulic pump 503, a hydraulic rod 504 and a telescopic rod 505, the support 501 is welded at the top end of the support plate 2, the fixing frame 502 is installed at the top end of the support 501, the hydraulic pump 503 is fixed in the fixing frame 502, the hydraulic rod 504 is connected to the bottom end of the hydraulic pump 503, the telescopic rod 505 is fixedly installed at the bottom end of the hydraulic rod 504, when the toughness of the screen is detected, the screen needs to be bent, the bending direction of the screen is controlled by the guide mechanism 5, the hydraulic pump 503 fixedly installed at the fixing frame 502 installed at the top end of the support 501 controls the hydraulic rod 504 to be telescopic, so that the telescopic rod 505 installed at the bottom end of the hydraulic rod 504 is flush with the screen, the telescopic control is performed on the length of the telescopic rod 505 according to different widths of the screens, and there is better direction assistance for the bending direction of the screen, while being adaptable to a wider range of screen sizes.

In a specific implementation process, as shown in fig. 8, the observation mechanism 6 includes a second motor 601, a second coupling 602, a second lead screw 603, an observation plate 604, an inner rotation bearing ring 605 and a bearing seat 606, a bottom end of the second motor 601 is installed inside the supporting leg 1 and fixed, the second coupling 602 is installed on the second motor 601, the second lead screw 603 is installed at a top end of the second coupling 602, the inner rotation bearing ring 605 is spirally sleeved on the second lead screw 603, the inner rotation bearing ring 605 is fixedly installed inside the observation plate 604, the bearing seat 606 is installed at a top end of the second lead screw 603, a top end of the bearing seat 606 is fixedly installed inside the supporting leg 1, when a screen is bent and subjected to toughness detection, the second motor 601 operates through the action of the second coupling 602 to enable the second lead screw 603 to rotate, a top end of the second lead screw 603 is fixed by the bearing seat 606, can not influence the rotation of second lead screw 603, simultaneously, prevent that second lead screw 603 top from receiving the friction, the interior bearing ring 605 of spiral housing joint moves under the circumstances that second lead screw 603 rotated on the second lead screw 603, interior bearing ring 605 removes and makes observation board 604 along with removing, the operation of second motor 601 forms the linkage with first motor 301, make observation board 604 can change the high position along with the bending degree of screen cloth, the convenience is observed screen cloth toughness, observe discipline observation board 604 position through breaking the screen cloth, be used for making the toughness of contrast and analysis screen cloth, and more accurate to the detection of screen cloth toughness.

In a specific implementation process, as shown in fig. 1, the fixed blocks are welded on two sides of the bottom end of the support plate 2, one end of the guide rail 305 is fixed on the fixed blocks, the top end of the first lead screw 306 is provided with a bearing, the other side of the bearing is fixedly installed on the fixed blocks, and the bearing has a fixing effect on the first lead screw 306 and does not influence the rotation of the first lead screw 306.

In a specific implementation process, as shown in fig. 1 and 2, the fixing mechanisms 4 are installed on both sides of the support plate 2, the extrusion mechanisms 3 connected to the fixing mechanisms 4 on both sides are communicated, and the mechanisms on the support plate 2 are axisymmetric.

In a specific implementation process, as shown in fig. 7, the extension rod 505 can extend towards two sides, and the extending bottom ends of the extension rod 505 are all on the same horizontal line, so that the stress of a contact point is not uniform when the screen is in an auxiliary bending direction, and unexpected deformation is prevented.

The working principle provided by the invention is as follows:

the invention provides a toughness detection device for a screen material, which is characterized in that when in work, two ends of a screen are respectively arranged on a fixing mechanism 4, then a guide mechanism 5 welded at the top end of a support plate 2 is used for adjusting, the bottom end of the guide mechanism 5 is aligned with the top end of the screen, then a support leg 1 is started to support an extrusion mechanism 3 which is in sliding clamping connection with the support plate 2 to operate, the screen is folded and bent, the screen is bent downwards, meanwhile, observation mechanisms 6 arranged at the bottom end of the screen and the inner side of the support leg 1 operate, so that an observation plate 604 moves downwards along with the bending degree of the screen, the toughness of the screen is observed, the position of a discipline observation plate 604 is observed by breaking the screen to compare and analyze the toughness of the screen, the operation is simple, the automation degree is high, the safety is good, the toughness of the screen is obviously observed, and particularly, when the screen is fixedly arranged, the two ends of the screen are respectively prevented from being arranged at the bottom end of a pressing plate 401 and the top end of a bottom plate 402, then a locking disc 403 is rotated to enable the pressing plate 401 and the bottom plate 402 to press the edge of the screen, so that the screen is fixed, when the screen is bent, the bottom plate 402 is movably arranged at the inner side of a push plate 308, so that the bottom plate 402 can rotate under the influence of the bending force of the screen, the screen edge is prevented from being folded when the screen is subjected to toughness test, the deformation of the screen edge is caused, and the detection of the toughness of the screen is influenced, meanwhile, when the screen is fixed, the operation is simple, the fixation is strong, the operation is more practical, when the toughness of the screen is detected, the screen needs to be bent, the bending direction of the screen is controlled by a guide mechanism 5, a hydraulic pump 503 fixedly arranged on a fixing frame 502 arranged at the top end of a support 501 controls a hydraulic rod 504 to stretch, so that a telescopic rod 505 arranged at the bottom end of the hydraulic rod 504 is flush with the screen, according to different widths of the screen, the length of the telescopic rod 505 is controlled in a telescopic mode, the direction of the screen is better assisted, and meanwhile, the telescopic rod can be suitable for the size of the screen in a wider range, when the screen is extruded and bent to detect the toughness, the first motor 301 is started, the first motor 301 is switched through the first coupler 302 to enable the first lead screw 306 to rotate, when the first lead screw 306 rotates, the sliding block 304 moves inwards under the action of the guide rail 305 fixed by the clamping block 303, the clamping support block 307 fixed by a screw at the top end of the sliding block 304 slides in the sliding groove 7 in a translation mode along with the movement of the sliding block 304, the push plate 308 fixed on the inner side of the clamping support block 307 pushes inwards, the fixing mechanism 4 installed on the push plate 308 clamps the screen to fold and bend inwards, the bending degree of the screen can be controlled in real time, and the detection on the toughness of the screen is more accurate, meanwhile, the manual testing is avoided, and a large amount of time and labor are wasted.

the invention provides a device for detecting the toughness of a screen material, which is characterized in that through the arrangement of an extrusion mechanism 3, when the toughness of the screen is detected by squeezing and bending, the first motor 301 is started, the first motor 301 operates to rotate the first screw rod 306 through the conversion of the first coupler 302, when the first screw rod 306 rotates, the slide block 304 moves inwards under the action of the guide rail 305 fixed by the fixture block 303, the clamping support block 307 fixed by a screw at the top end of the slide block 304 moves in the sliding groove 7 in a translation manner along with the movement of the slide block 304, the push plate 308 fixed at the inner side of the clamping support block 307 pushes inwards, so that the fixing mechanism 4 arranged on the push plate 308 clamps the screen mesh to fold and bend inwards, the bending degree of the screen mesh can be controlled in real time, the toughness of the screen is more accurately detected, and meanwhile, the manual test is avoided, so that a large amount of time and labor are wasted;

through the arrangement of the fixing mechanism 4, when the screen is installed and fixed, two ends of the screen are respectively prevented from being arranged at the bottom end of the pressing plate 401 and the top end of the bottom plate 402, then the locking disc 403 is rotated to enable the pressing plate 401 and the bottom plate 402 to press the edge of the screen, so that the screen is fixed, when the screen is bent, the bottom plate 402 is movably arranged at the inner side of the push plate 308, so that the bottom plate 402 can rotate under the influence of the bending force of the screen, the screen edge is prevented from being folded when the toughness of the screen is tested, the deformation of the screen edge is prevented, and the detection of the toughness of the screen is influenced, and meanwhile, when the screen is fixed, the operation is simple, the fixing performance is strong, and the screen is more practical;

through the arrangement of the guide mechanism 5, when the toughness of the screen is detected, the screen needs to be bent, the bending direction of the screen is controlled through the guide mechanism 5, the hydraulic pump 503 fixedly installed through the fixing frame 502 installed at the top end of the support 501 controls the hydraulic rod 504 to stretch, so that the telescopic rod 505 installed at the bottom end of the hydraulic rod 504 is flush with the screen, the stretching and retracting of the telescopic rod 505 are controlled according to different widths of the screen, the bending direction of the screen is better assisted, and meanwhile, the flexible screen is suitable for the size of the screen in a wider range;

through the arrangement of the observation mechanism 6, when the flexibility of the screen is detected, the second motor 601 operates through the action of the second coupling 602, the second screw 603 is rotated, the top end of the second screw 603 is fixed by the bearing seat 606, the rotation of the second screw 603 is not affected, meanwhile, the top end of the second lead screw 603 is prevented from being rubbed, the inner rotary bearing ring 605 which is spirally sleeved on the second lead screw 603 moves under the condition that the second lead screw 603 rotates, the inner rotary bearing ring 605 moves to enable the observation plate 604 to move along with the movement, the operation of the second motor 601 is linked with the first motor 301, so that the height of the observation plate 604 can be changed along with the bending degree of the screen mesh, the toughness of the screen mesh can be conveniently observed, the discipline observation plate 604 is used for comparing and analyzing the toughness of the screen by breaking the screen and observing the position of the discipline observation plate, so that the intuition is strong, and the detection on the toughness of the screen is more accurate.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A screen material toughness detection apparatus, comprising: the supporting leg structure comprises supporting legs (1), wherein a supporting plate (2) is fixedly supported at the top end of the supporting legs (1), the extrusion mechanism (3) is installed at the bottom end of the supporting plate (2), and the supporting leg structure is characterized in that a protective groove (8) is formed in the side surface of the supporting plate (2) fixedly installed at the top end of the supporting legs (1), the extrusion mechanism (3) is installed and supported in the protective groove (8), a fixing mechanism (4) is installed on the extrusion mechanism (3), two sides of the extrusion mechanism (3) are respectively clamped in sliding grooves (7) formed in two sides of the supporting plate (2) in a sliding mode, a vertical groove (9) is formed in the inner side of each supporting leg (1), an observation mechanism (6) is installed in each vertical groove (9), and guide mechanisms (5) are installed at the top ends of two sides of the supporting plate (2);

when the fixing mechanisms (4) installed on the extrusion mechanisms (3) and installed at the bottom ends of the support plates (2) are used for fixing the two sides of the screen, the guide mechanisms (5) assist the middle of the screen, and when the extrusion mechanisms (3) extrude the screen, the observation mechanisms (6) installed on the inner sides of the support legs (1) slide downwards for observation.

2. The device for detecting the toughness of the screen material according to claim 1, wherein the extruding mechanism (3) comprises a first motor (301), a first coupler (302), a clamping block (303), a sliding block (304), a guide rail (305), a first lead screw (306), a clamping support block (307) and a push plate (308), the first coupler (302) is installed on the first motor (301), the first lead screw (306) is installed on the other side of the first coupler (302), the sliding block (304) is installed on the outer side of the first lead screw (306) in a screwed and sleeved mode, the guide rail (305) is installed on the two sides of the sliding block (304) in a sliding mode, the guide rail (305) and the first coupler (302) are fixed through the clamping block (303), the clamping support block (307) is fixed on the top end of the sliding block (304) through a screw, the other end of the clamping supporting block (307) is arranged on one side of the push plate (308), and a fixing mechanism (4) is arranged in the push plate (308).

3. The device for detecting the toughness of the screen material as claimed in claim 2, wherein the fixing mechanism (4) comprises a pressing plate (401), a bottom plate (402) and a locking disc (403), two sides of the bottom plate (402) are movably mounted on the inner side of the push plate (308), the pressing plate (401) is mounted at the top end of the bottom plate (402), the locking disc (403) is mounted at the top end of the pressing plate (401), and the tightness between the pressing plate (401) and the bottom plate (402) is rotatably adjusted by the locking disc (403).

4. The device for detecting the toughness of the screen material according to claim 3, wherein the guide mechanism (5) comprises a support (501), a fixing frame (502), a hydraulic pump (503), a hydraulic rod (504) and an expansion rod (505), the support (501) is welded at the top end of the support plate (2), the fixing frame (502) is installed at the top end of the support (501), the hydraulic pump (503) is fixed in the fixing frame (502), the hydraulic rod (504) is connected to the bottom end of the hydraulic pump (503), and the expansion rod (505) is fixedly installed at the bottom end of the hydraulic rod (504).

5. The screen material toughness testing device of claim 4, the observation mechanism (6) comprises a second motor (601), a second coupling (602), a second screw rod (603), an observation plate (604), an inner rotary bearing ring (605) and a bearing seat (606), the bottom end of the second motor (601) is arranged in the supporting leg (1) and fixed, the second motor (601) is provided with the second coupling (602), the top end of the second coupling (602) is provided with the second screw rod (603), the inner rotary bearing ring (605) is spirally sleeved on the second screw rod (603), the inner rotary bearing ring (605) is fixedly arranged in the observation plate (604), the bearing seat (606) is installed on the top end of the second screw rod (603), and the top end of the bearing seat (606) is fixedly installed inside the supporting leg (1).

6. The device for detecting the toughness of the screen material as claimed in claim 5, wherein the fixing blocks are welded on two sides of the bottom end of the support plate (2), one end of the guide rail (305) is fixed on the fixing blocks, a bearing is installed at the top end of the first screw rod (306), and the other side of the bearing is fixedly installed on the fixing blocks.

7. The device for detecting the toughness of the screen material as claimed in claim 6, wherein the fixing mechanisms (4) are mounted on both sides of the supporting plate (2), the extruding mechanisms (3) connected to the fixing mechanisms (4) on both sides are communicated, and the mechanisms on the supporting plate (2) are axisymmetric.

8. The screen material toughness detection device of claim 7, wherein the telescopic rod (505) can be extended towards two sides, and the extended bottom ends of the telescopic rod (505) are all on the same horizontal line.