Paper strength detection device for yellow paper production and processing

Abstract

The invention discloses a paper strength detection device for yellow paper production and processing, and relates to the technical field of paper strength detection.The paper strength detection device comprises an L-shaped supporting seat, a rodless air cylinder is fixedly installed on the outer wall of the lower portion of the front side of the L-shaped supporting seat, and a lower end clamping mechanism is arranged at the sliding block end of the rodless air cylinder; the upper portion of the L-shaped supporting base is connected with a swing guide rail through a stretching direction adjusting mechanism, the swing guide rail is connected with an upper end clamping mechanism through a tensile strength detection mechanism, and the tensile strength detection mechanism comprises a servo motor, a ball screw, a stretching sliding block, a lead screw nut and a force sensor. The paper tensile strength detection device is provided with the stretching direction adjusting mechanism, the stretching direction can be flexibly adjusted, then multi-direction paper tensile strength detection work can be carried out, different complex use scenes can be conveniently simulated, multi-direction tensile strength detection can avoid limitation of single-direction detection, more comprehensive strength data are provided, and the detection precision is improved. And errors caused by a single detection direction are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paper strength detection, and particularly relates to a paper strength detection device for yellow paper production and processing. BACKGROUND

[0002] As paper with special cultural use, the yellow paper usually needs to be detected in tensile strength after production and processing. The existing paper strength detection device has simple structure and has the following problems in actual operation process. Firstly, the traditional paper tensile strength detection is usually performed in a fixed direction (such as longitudinal or transverse direction), which can only reflect the strength of the paper in the specific direction and cannot represent the overall performance of the paper. Secondly, the traditional paper tensile strength detection device does not dry the paper before detection, which may affect the actual strength detection effect due to the damp paper, thereby affecting the accuracy of the paper strength detection. SUMMARY

[0003] In view of the problems of the prior art, the present application provides a paper strength detection device for yellow paper production and processing, which effectively solves the problems of the traditional paper tensile strength detection which is usually performed in a fixed direction, which can only reflect the strength of the paper in the specific direction and cannot represent the overall performance of the paper, and the traditional paper tensile strength detection device which does not dry the paper before detection, which may affect the actual strength detection effect due to the damp paper, thereby affecting the accuracy of the paper strength detection.

[0004] In order to achieve the above purpose, the present application adopts the following technical scheme: The paper strength detection device for yellow paper production and processing comprises an L-shaped support seat, a rodless cylinder is fixedly installed on the lower outer wall of the front edge of the L-shaped support seat, a lower end clamping mechanism is arranged at the sliding block end of the rodless cylinder, an upper end clamping mechanism is connected to the upper part of the L-shaped support seat through a tensile direction adjusting mechanism, and an anti-tensile strength detection mechanism is connected to the upper end clamping mechanism through the swing guide rail. The anti-tensile strength detection mechanism comprises a servo motor fixedly connected to the upper outer wall of the rear edge of the swing guide rail, a ball screw, a tensile sliding block slidingly connected to the lower part of the swing guide rail, a screw nut fixedly embedded in the tensile sliding block and threadedly connected with the ball screw, and a force sensor fixedly installed on the front edge outer wall of the swing guide rail, and the detection end of the force sensor is telescopically connected with the top outer wall of the tensile sliding block.

[0005] As a preferred technical scheme of the present application, the upper end clamping mechanism and the lower end clamping mechanism each comprise a positioning plate, a driving cylinder fixedly installed on the outer wall of the front edge of the positioning plate, a lifting block fixedly connected to the telescopic end of the driving cylinder, a linear guide rail fixedly connected to the outer wall of the front edge of the positioning plate, two guide blocks slidingly connected to the linear guide rail, two connecting rods fixedly connected to the outer walls of the front edges of the two guide blocks in sequence, two flexible clamps fixedly connected to the outer walls of the adjacent sides of the two connecting rods in a symmetrical manner, and two hinged inclined rods hingedly connected to the two guide blocks in a symmetrical manner. In this way, the upper end clamping mechanism and the lower end clamping mechanism are arranged to clamp the paper by means of pneumatic flexible clamping, which not only ensures the stability of clamping, but also reduces the damage rate of the paper, and is very suitable for use with paper with small thickness.

[0006] As a preferred technical scheme of the present application, the two hinged inclined rods are respectively hinged to the outer walls of the two sides of the lifting block at opposite ends, the positioning plate of the upper end clamping mechanism is fixedly connected to the outer wall of the front edge of the stretching sliding block, and the positioning plate of the lower end clamping mechanism is fixedly connected to the sliding block end of the rodless cylinder.

[0007] As a preferred technical scheme of the present application, the outer wall of the rear edge of the swing guide rail is fixedly connected to two bearing seats in a symmetrical manner, the ball screw is rotatably installed on the two bearing seats, and the output shaft of the servo motor is fixedly connected to the top end of the ball screw through a shaft coupling.

[0008] As a preferred technical scheme of the present application, the stretching direction adjusting mechanism comprises a fixed cover fixedly connected to the upper outer wall of the rear edge of the L-shaped support seat, a first stepping motor fixedly installed on the side wall of the fixed cover, a worm fixedly sleeved on the output shaft of the first stepping motor, an adjusting shaft rotatably installed on the upper part of the L-shaped support seat, and a worm gear fixedly sleeved on the adjusting shaft. In this way, the stretching direction can be flexibly adjusted, and multi-directional paper tensile strength detection work can be performed, which is convenient for simulating different complex use scenarios, is conducive to detecting the strength performance of the yellow paper under different stress directions, makes the detection result more in line with the actual situation, avoids the limitations of single-direction detection in multi-directional tensile strength detection, provides more comprehensive strength data, reduces errors caused by single detection direction, and makes the detection result more accurate and reliable.

[0009] As a preferred technical scheme of the present application, the output shaft of the first stepping motor extends into the fixed cover, the worm and the worm gear are in meshing engagement and are located in the fixed cover, and the front end of the adjusting shaft is fixedly connected to the lower part of the swing guide rail in a concentric manner.

[0010] As a preferred technical scheme of the present application, the side wall of the L-shaped support seat is fixedly connected with an L-shaped guide rail, and a reciprocating type air blowing drying mechanism is arranged on the L-shaped guide rail.

[0011] As a preferred technical scheme of the present application, the reciprocating blowing drying mechanism comprises a rack fixedly connected to the side wall of the L-shaped guide rail, a sliding seat slidingly connected to the L-shaped guide rail, a second stepper motor fixedly installed on the rear outer wall of the sliding seat, a gear fixedly sleeved on the output shaft of the second stepper motor, and a hot air fan fixedly installed on the side wall of the sliding seat.

[0012] As a preferred technical scheme of the present application, the sliding seat is provided with an engagement cavity, the output shaft of the second stepper motor extends through the engagement cavity, and the gear is located in the engagement cavity and engages with the rack.

[0013] As a preferred technical scheme of the present application, the side wall of the L-shaped support seat is fixedly installed with a controller, and the signal output end of the force sensor is electrically connected to the signal input end of the controller.

[0014] The present application has the following advantages: 1. The upper end clamping mechanism and the lower end clamping mechanism are clamped by pneumatic flexible clamping, which ensures the stability of clamping and reduces the damage rate of paper, and is suitable for paper with small thickness. 2. The stretching direction adjusting mechanism can adjust the stretching direction flexibly, so that multi-directional paper tensile strength detection work can be carried out, which is convenient for simulating different complex use scenarios, and is conducive to detecting the strength performance of yellow paper under different stress directions, so that the detection result is more in line with the actual situation. 3. The reciprocating blowing drying mechanism is provided, and the hot air fan reciprocates vertically, so that the surface of the paper to be detected can be fully and uniformly dried, which avoids the influence of paper moisture on the actual strength detection effect, and is conducive to improving the accuracy of paper strength detection. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the specific embodiments of the present application or the prior art, the drawings required to be used in the specific embodiments or prior art description will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0016] Figure 1 A three-dimensional structural schematic diagram of a paper strength detection device for yellow paper production and processing is provided for the present application. Figure 2 A three-dimensional structural schematic diagram of the stretching direction adjusting mechanism after operation is provided for the present application. Figure 3 A rear view three-dimensional enlarged structural schematic diagram of the swing guide rail is provided for the present application. Figure 4 A three-dimensional enlarged structural schematic diagram of the connection between the stretching sliding block and the upper end clamping mechanism is provided for the present application. Figure 5 A three-dimensional enlarged structural schematic diagram of the connection between the rodless air cylinder and the lower end clamping mechanism is provided for the present application. Figure 6 A sectional view structural schematic diagram of the vertical section of the fixed cover is provided for the present application. Figure 7 A three-dimensional enlarged structural schematic diagram of the main part of the reciprocating type air blowing drying mechanism is provided for the present application. Figure 8 A three-dimensional enlarged structural schematic diagram of the meshing area of the gear and the rack is provided for the present application.

[0017] In the drawings: 1, L-shaped support seat; 2, rodless air cylinder; 3, swing guide rail; 4, servo motor; 5, ball screw; 6, stretching sliding block; 7, screw nut; 8, force sensor; 9, positioning plate; 10, driving cylinder; 11, lifting block; 12, linear guide rail; 13, guide block; 14, connecting rod; 15, flexible clamp; 16, hinged inclined rod; 17, fixed cover; 18, first stepper motor; 19, worm; 20, worm gear; 21, bearing seat; 22, L-shaped guide rail; 23, rack; 24, sliding seat; 25, second stepper motor; 26, gear; 27, hot air fan; 28, controller; 29, meshing cavity; 30, adjusting shaft. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments.

[0019] Embodiment 1, refer to Figure 1 and Figures 3-5The utility model provides a paper strength detection device for yellow paper production and processing, including L type support 1, the lower outer wall of L type support 1 is fixedly installed with rodless cylinder 2, the slider end of rodless cylinder 2 is equipped with lower end clamping mechanism, the upper portion of L type support 1 is connected with swing rail 3 through the stretching direction adjusting mechanism, and swing rail 3 is connected with upper end clamping mechanism through tensile strength detection mechanism, Specifically, the tensile strength detection mechanism includes a servo motor 4 fixedly connected to the upper outer wall of the rear edge of the swing rail 3, a ball screw 5, a stretching slider 6 slidingly connected to the lower portion of the swing rail 3, a screw nut 7 fixedly embedded in the stretching slider 6 and threadedly connected with the ball screw 5, and a force sensor 8 fixedly installed on the outer wall of the front edge of the swing rail 3. Further, the detection end of the force sensor 8 is telescopically connected with the top outer wall of the stretching slider 6, a controller 28 is fixedly installed on the side wall of the L-shaped support 1, the signal output end of the force sensor 8 is electrically connected with the signal input end of the controller 28, two bearing seats 21 are symmetrically fixed on the rear outer wall of the swing rail 3, the ball screw 5 is rotatably installed on the two bearing seats 21, and the output shaft of the servo motor 4 is coaxially fixedly connected with the top end of the ball screw 5 through a shaft coupling. Specifically, the upper end clamping mechanism and the lower end clamping mechanism each include a positioning plate 9, a drive cylinder 10 fixedly installed on the outer wall of the front edge of the positioning plate 9, a lifting block 11 fixedly connected to the telescopic end of the drive cylinder 10, a linear guide rail 12 fixedly connected to the outer wall of the front edge of the positioning plate 9, two guide blocks 13 slidingly connected to the linear guide rail 12, two connecting rods 14 sequentially fixedly connected to the outer wall of the front edge of the two guide blocks 13, two flexible clamps 15 symmetrically fixed to the outer wall of the adjacent side of the two connecting rods 14, and two hinged inclined rods 16 symmetrically hinged to the two guide blocks 13. Further, the opposite ends of the two hinged inclined rods 16 are respectively hinged to the outer walls of the two sides of the lifting block 11, the positioning plate 9 of the upper end clamping mechanism is fixedly connected with the outer wall of the front edge of the stretching slider 6, and the positioning plate 9 of the lower end clamping mechanism is fixedly connected with the slider end of the rodless cylinder 2. The operating principle of the upper end clamping mechanism and the lower end clamping mechanism is that the telescopic end of the drive cylinder 10 is retracted to control the movement of the lifting block 11, and under the hinged linkage of the two hinged inclined rods 16, the two guide blocks 13 will slide on the linear guide rail 12 and drive the two flexible clamps 15 connected to the two connecting rods 14 to be centered and close together to flexibly clamp the yellow paper to be detected. In this way, the pneumatic flexible clamping method not only ensures the stability of clamping, but also reduces the damage rate of the paper, which is very suitable for the use of paper with small thickness. In the specific implementation of the embodiment, first, the upper part of the yellow paper to be detected is clamped by the upper clamping mechanism, and then the clamping height of the lower clamping mechanism can be flexibly adjusted according to the length of the paper, that is, the lower clamping mechanism is operated to move up and down through the slider end of the rodless cylinder 2, and after the adjustment is completed, the lower part of the yellow paper to be detected is clamped by the lower clamping mechanism; secondly, the ball screw 5 is rotated by the servo motor 4, and then the lead screw nut 7 connected with the ball screw 5 in a threaded manner drives the stretching slider 6 to move uniformly upward, and then the upper clamping mechanism on the stretching slider 6 uniformly pulls the paper, and the force sensor 8 records the maximum breaking load in real time and transmits the data to the controller 28, thereby automatically detecting the tensile strength of the yellow paper.

[0020] Embodiment 2, refer to Figure 2 and Figure 6 , the embodiment is optimized on the basis of embodiment 1, specifically: the stretching direction adjusting mechanism comprises a fixed cover 17 fixedly connected to the outer wall of the upper part of the rear edge of the L-shaped support seat 1, a first stepper motor 18 fixedly installed on the side wall of the fixed cover 17, a worm 19 fixedly sleeved on the output shaft of the first stepper motor 18, an adjusting shaft 30 rotatably installed on the upper part of the L-shaped support seat 1, and a worm wheel 20 fixedly sleeved on the adjusting shaft 30; Further, the output shaft of the first stepper motor 18 extends through the fixed cover 17, the worm 19 and the worm wheel 20 are engaged with each other and located in the fixed cover 17, and the front end of the adjusting shaft 30 is fixedly connected with the lower part of the swing guide rail 3 in a concentric manner; In the specific implementation of the embodiment, as shown in Figure 2 , after the paper is clamped, the worm 19 is driven to rotate by the first stepper motor 18, and then the worm wheel 20 engaged with the worm 19 drives the adjusting shaft 30 to rotate, and then the adjusting shaft 30 drives the swing guide rail 3 to swing to the left by a certain angle to flexibly adjust the stretching direction, so that multi-directional paper tensile strength detection work can be carried out, and then different complex use scenarios can be simulated, which is conducive to detecting the strength performance of the yellow paper under different stress directions, so that the detection result is more in line with the actual situation, and the multi-directional tensile strength detection can avoid the limitation of single-direction detection, provide more comprehensive strength data, reduce the error caused by single detection direction, and make the detection result more accurate and reliable.

[0021] Embodiment 3, refer to Figure 1 , Figure 7 and Figure 8 , the embodiment is optimized on the basis of embodiment 1, specifically: the side wall of the L-shaped support seat 1 is fixedly connected with an L-shaped guide rail 22, and the L-shaped guide rail 22 is provided with a reciprocating type blowing drying mechanism; Further, the reciprocating type blowing drying mechanism comprises a rack 23 fixedly connected to the side wall of the L-shaped guide rail 22, a sliding seat 24 slidably connected to the L-shaped guide rail 22, a second stepper motor 25 fixedly installed on the rear outer wall of the sliding seat 24, a gear 26 fixedly sleeved on the output shaft of the second stepper motor 25 and a hot air fan 27 fixedly installed on the side wall of the sliding seat 24, the sliding seat 24 is provided with an engagement cavity 29, the output shaft of the second stepper motor 25 extends into the engagement cavity 29, and the gear 26 is located in the engagement cavity 29 and engaged with the rack 23. In the embodiment, before the tensile strength of the paper is detected, the second stepper motor 25 drives the gear 26 to rotate, then the gear 26 engaged with the rack 23 drives the sliding seat 24 to move linearly under the action of the fixed rack 23, then the second stepper motor 25 drives the gear 26 to rotate forward and backward to drive the sliding seat 24 to move up and down in the vertical direction, so that the hot air fan 27 moves up and down in the vertical direction, and the surface of the paper to be detected can be fully and uniformly dried by hot air, so that the actual strength detection effect is not affected by the damp paper, and the accuracy of the paper strength detection is improved.

[0022] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0023] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A paper strength testing device for yellow paper production and processing, comprising an L-shaped support (1), characterized in that, A rodless cylinder (2) is fixedly installed on the lower outer wall of the front side of the L-shaped support base (1), and the slider end of the rodless cylinder (2) is provided with a lower clamping mechanism. The upper part of the L-shaped support base (1) is connected to a swing guide rail (3) through a tension direction adjustment mechanism, and the swing guide rail (3) is connected to an upper clamping mechanism through a tensile strength detection mechanism. The tensile strength testing mechanism includes a servo motor (4) fixedly connected to the upper outer wall of the swing guide rail (3), a ball screw (5), a tension slider (6) slidably connected to the lower part of the swing guide rail (3), a screw nut (7) fixedly embedded in the tension slider (6) and threadedly connected to the ball screw (5), and a force sensor (8) fixedly installed on the front outer wall of the swing guide rail (3). The detection end of the force sensor (8) is retractable and fixedly connected to the top outer wall of the tension slider (6).

2. The paper strength testing device for yellow paper production and processing according to claim 1, characterized in that, Both the upper clamping mechanism and the lower clamping mechanism include a positioning plate (9), a driving cylinder (10) fixedly installed on the front outer wall of the positioning plate (9), a lifting block (11) fixedly connected to the telescopic end of the driving cylinder (10), a linear guide rail (12) fixedly connected to the front outer wall of the positioning plate (9), two guide blocks (13) slidably connected to the linear guide rail (12), two connecting rods (14) fixed in sequence to the front outer walls of the two guide blocks (13), two flexible clamps (15) symmetrically fixed to the outer walls of adjacent sides of the two connecting rods (14), and two hinged diagonal rods (16) symmetrically hinged to the two guide blocks (13).

3. The paper strength testing device for yellow paper production and processing according to claim 2, characterized in that, The two hinged diagonal rods (16) are respectively hinged at one end to the outer walls of the lifting block (11) on both sides. The positioning plate (9) of the upper clamping mechanism is fixedly connected to the front outer wall of the stretching slider (6), and the positioning plate (9) of the lower clamping mechanism is fixedly connected to the slider end of the rodless cylinder (2).

4. The paper strength testing device for yellow paper production and processing according to claim 1, characterized in that, The rear outer wall of the swing guide rail (3) has two bearing seats (21) fixed symmetrically. The ball screw (5) is rotatably mounted on the two bearing seats (21), and the output shaft of the servo motor (4) is coaxially fixedly connected to the top of the ball screw (5) through a coupling.

5. The paper strength testing device for yellow paper production and processing according to claim 1, characterized in that, The tension direction adjustment mechanism includes a fixed cover (17) fixedly connected to the upper outer wall of the rear side of the L-shaped support (1), a first stepper motor (18) fixedly installed on the side wall of the fixed cover (17), a worm gear (19) fixedly mounted on the output shaft of the first stepper motor (18), an adjustment shaft (30) rotatably installed on the upper part of the L-shaped support (1), and a worm wheel (20) fixedly mounted on the adjustment shaft (30).

6. The paper strength testing device for yellow paper production and processing according to claim 5, characterized in that, The output shaft of the first stepper motor (18) extends through into the fixed cover (17), the worm (19) and the worm wheel (20) mesh with each other and are both located in the fixed cover (17), and the front end of the adjusting shaft (30) is concentrically fixedly connected to the lower part of the swing guide rail (3).

7. The paper strength testing device for yellow paper production and processing according to claim 1, characterized in that, The side wall of the L-shaped support base (1) is fixedly connected to an L-shaped guide rail (22), and a reciprocating blowing drying mechanism is provided on the L-shaped guide rail (22).

8. The paper strength testing device for yellow paper production and processing according to claim 7, characterized in that, The reciprocating air drying mechanism includes a rack (23) fixedly connected to the side wall of the L-shaped guide rail (22), a sliding seat (24) slidably connected to the L-shaped guide rail (22), a second stepper motor (25) fixedly installed on the rear outer wall of the sliding seat (24), a gear (26) fixedly mounted on the output shaft of the second stepper motor (25), and a hot air fan (27) fixedly installed on the side wall of the sliding seat (24).

9. The paper strength testing device for yellow paper production and processing according to claim 8, characterized in that, The sliding seat (24) has a meshing cavity (29), the output shaft of the second stepper motor (25) extends through into the meshing cavity (29), and the gear (26) is located in the meshing cavity (29) and meshes with the rack (23).

10. The paper strength testing device for yellow paper production and processing according to claim 1, characterized in that, The L-shaped support (1) is fixedly mounted with a controller (28) on its side wall, and the signal output terminal of the force sensor (8) is electrically connected to the signal input terminal of the controller (28).

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