Non-equal-diameter paper water absorption detection method and detection device thereof

Abstract

The invention is suitable for the technical field of water absorption detection, and provides a non-equal-diameter paper water absorption detection method and a detection device thereof, and the detection device comprises a workbench, a water immersion assembly and a water absorption assembly; the water soaking assembly comprises a connecting frame, a water storage barrel and a mounting frame are arranged on a rotating shaft, the opening end of the water storage barrel is connected with a diameter expanding ring, the diameter expanding ring abuts against a connecting pipe, an upper cover plate is arranged at the end, away from the diameter expanding ring, of the connecting pipe, and a pressing threaded rod used for pressing the upper cover plate is arranged at the end, away from the connecting pipe, of the upper cover plate. Plug pins are symmetrically connected to the two sides of the upper cover plate, movable limiting blocks are elastically connected to the interiors of the plug pins, plug pin holes matched with the plug pins are formed in the lug plates, and limiting grooves matched with the limiting blocks are formed in the lug plates. The flowable water attached to the surface of the paper is prevented from being adsorbed by the paper outside the detection range, and the accuracy of the detection result is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water absorption detection, in particular to a non-equal-diameter paper water absorption detection method and a detection device thereof. BACKGROUND

[0002] According to different uses of paper, single-side water absorption detection needs to be performed on the produced paper, and after the single-side water absorption detection of the paper is performed, it can be determined whether the single-side water absorption rate of the paper meets the qualified standard. The paper whose single-side water absorption rate needs to be detected has strong toughness and will not be damaged after water absorption, for example, the paper used in the position of a tobacco filter.

[0003] At present, the existing water absorption detection device, for example, the patent with the Chinese patent document number CN217981140U discloses a water transfer printing paper water absorption detection device, which comprises a base and an electronic scale. The upper surface of the base is fixedly connected with the electronic scale. The upper surface of the base is fixedly connected with a connecting frame. Two connecting shafts are fixedly connected with a connecting cylinder. A screw assembly is arranged on the connecting cylinder. The upper surface of the base is fixedly connected with a mounting plate. A mounting pin is slidably connected in the mounting plate. A press roller is fixedly connected between the two mounting pins. A pull rod is rotatably connected to the mounting pin. The lower surface of the press roller is rollingly connected with the upper surface of the base.

[0004] Although the above-mentioned patent increases the pressure between the cover plate and the connecting cylinder, ensures the firmness of the connecting cylinder and the cover plate, and reduces the occurrence of water leakage, in the process of using the above-mentioned patent, due to the surface tension of water, a large amount of water is easily attached to the contact surface between the paper and the water. When the paper is manually taken out, the flowable water attached to the surface of the inclined paper is easily flowed to the dry position of the paper and is absorbed by the paper, thereby affecting the detection result. In paper production, different widths of paper are usually produced according to the needs. The above-mentioned patent is difficult to detect the water absorption rate of paper with different widths. SUMMARY

[0005] In view of the above-mentioned defects, the purpose of the present application is to provide a non-equal-diameter paper water absorption detection method and a detection device thereof, which can detect the water absorption rate of paper with different widths, avoid the flowable water attached to the surface of the paper being absorbed by the paper outside the detection range, and be beneficial to improve the accuracy of the detection result. The connecting pipe can conveniently limit the water attached to the surface of the paper within the detection range of the paper. The water absorption member can conveniently absorb the water attached to the inner wall of the connecting pipe and the surface of the paper. The expansion ring can conveniently place the connecting pipes with different diameters.

[0006] In order to achieve the above-mentioned purpose, the present application provides a non-equal-diameter paper water absorption detection device, which comprises a workbench, a water immersion assembly and a water absorption assembly.

[0007] The water immersion assembly comprises a connecting frame, a rotatable rotating shaft arranged on the connecting frame, a water storage bucket and a mounting frame arranged on the rotating shaft, a diameter expansion ring connected to the opening end of the water storage bucket, a connecting pipe abutting against the diameter expansion ring, an upper cover plate arranged at the end of the connecting pipe away from the diameter expansion ring, a pressing screw rod arranged at the end of the upper cover plate away from the connecting pipe and used for pressing the upper cover plate, the pressing screw rod being arranged on the mounting frame, a bolt symmetrically arranged on both sides of the upper cover plate, a movable limiting block elastically connected in the bolt, and an ear plate symmetrically arranged on both sides of the connecting pipe, the ear plate being provided with a limiting groove matched with the limiting block and a bolt hole matched with the bolt.

[0008] The water absorption assembly comprises water absorption elements arranged in layers, the water absorption elements being elastically connected to the workbench, and a fixing rod being arranged on both sides of each water absorption element and connected to the workbench, and a lifting rod being elastically connected to the limiting block on the side of the fixing rod away from the workbench.

[0009] According to the non-equal-diameter paper water absorption rate detection device, each bolt is provided with a guide hole, a limiting block elastically extending outside the bolt is slidably connected in the guide hole, an inclined surface is arranged on the end of the limiting block away from the upper cover plate, an avoiding groove is arranged on the end of the bolt away from the upper cover plate and used for the movement of a push rod, the limiting block is rotationally connected to one end of the push rod, and the limiting block is provided with a first torsional spring used for the reset of the push rod.

[0010] According to the non-equal-diameter paper water absorption rate detection device, a clamping assembly is symmetrically arranged on the side of the upper cover plate away from the bolt, each clamping assembly comprises a connecting shaft connected to the upper cover plate, the connecting shaft is rotationally connected with a first clamping frame and a second clamping frame intersecting with each other, a second torsional spring is arranged on the connecting shaft and used for the reset of the first clamping frame and the second clamping frame, a lifting link is arranged above the workbench, and the two ends of the lifting link are connected with insertion pieces matched with the clamping assemblies.

[0011] According to the non-equal-diameter paper water absorption rate detection device, the first clamping frame and the second clamping frame of each clamping assembly are connected with cylindrical rods, and the side of each cylindrical rod close to each other is provided with an anti-dropping groove matched with the insertion piece.

[0012] According to the non-equal-diameter paper water absorption rate detection device, an electronic scale is arranged above the workbench, a water pressing device is arranged above the workbench, the water pressing device comprises a water pressing roller, the water pressing roller is rotationally connected with a handle, and a timer is arranged above the workbench.

[0013] The non-equal-diameter paper water absorption rate detection device according to the present application is characterized in that the connecting frame is connected to the workbench, the connecting frame is rotationally connected to the rotating shaft, the mounting frame is threadedly connected to the pressing threaded rod, the upper cover plate is provided with a positioning groove at the top center position and matched with the bottom end of the pressing threaded rod, one end of the rotating shaft is connected with the lengthened plate, the lengthened plate is movably connected with the movable rod, and the connecting frame is provided with a positioning hole matched with the movable rod.

[0014] The non-equal-diameter paper water absorption rate detection device according to the present application is characterized in that the upper cover plate and the enlarged-diameter ring are both provided with elastic leakage-proof layers on the side close to each other.

[0015] The non-equal-diameter paper water absorption rate detection device according to the present application is characterized in that the guiding holes are both provided with first elastic members, one end of each first elastic member is connected to the limiting block, and the other end of each first elastic member is connected to the bolt.

[0016] The non-equal-diameter paper water absorption rate detection device according to the present application is characterized in that the fixed rod is provided with a guiding space at the end, the guiding space is provided with a second elastic member, and the lifting rod can be linearly retracted into the guiding space.

[0017] The non-equal-diameter paper water absorption rate detection device according to the present application is characterized in that the water absorption member and the workbench are provided with a heightening table, the heightening table is connected with one end of a plurality of supporting legs, the other end of each supporting leg is connected to the workbench, each water absorption member is detachably connected with a supporting member below, each supporting member is symmetrically connected with one end of a supporting rod below, the supporting rod is slidably arranged through the heightening table, and each supporting rod is externally sleeved with a third elastic member.

[0018] The non-equal-diameter paper water absorption rate detection device according to the present application is characterized in that the heightening table is provided with a mounting bracket, and the mounting bracket is provided with an electric push rod for driving the connecting rod to lift.

[0019] The present application also provides a non-equal-diameter paper water absorption rate detection method, which comprises the following steps:

[0020] S1, water is added to the water storage bucket, dry paper is weighed, a connecting pipe with a proper diameter is selected, the connecting pipe, the paper and the upper cover plate are placed on the top of the enlarged-diameter ring in the order from bottom to top, the connecting pipe, the paper and the upper cover plate are pressed on the enlarged-diameter ring by rotating the pressing threaded rod, the movable rod is pulled out of the positioning hole, the rotating shaft is rotated by 180 degrees, the paper is fully soaked after water absorption, the movable rod is inserted into the positioning hole, the pressing threaded rod is rotated, and the connecting pipe, the paper and the upper cover plate connected together are removed;

[0021] S2, the connecting pipe, the paper and the upper cover plate connected together are placed above the water absorption member, the lifting rods are respectively arranged in the avoiding grooves, the electric push rod is started to press the connecting pipe so that the paper contacts the water absorption member, the water absorption member absorbs the water with strong flowability on the surface of the paper, and the electric push rod drives the upper cover plate to rise and separate from the connecting pipe.

[0022] S3, place the paper after water absorption between two water absorption papers, push the water pressing roller to press out the excess water in the paper, and place the paper on the electronic scale to weigh and calculate the water absorption rate of the paper.

[0023] The application provides a non-equal-diameter paper water absorption rate detection method and a detection device thereof. The water storage barrel is connected with a diameter expansion ring, the diameter expansion ring abuts against the connecting pipe, the diameter expansion ring is arranged to conveniently abut against connecting pipes with different diameters, thereby conveniently detecting the water absorption rate of paper with different widths and avoiding the influence of the paper width being smaller than the diameter of the connecting pipe on the detection result; one end of the connecting pipe away from the diameter expansion ring is provided with an upper cover plate, the upper cover plate is arranged to limit the movement space of water in the water storage barrel and simultaneously press the paper to conveniently turn over the water storage barrel to soak the paper; one end of the upper cover plate away from the connecting pipe is provided with a pressing screw rod for pressing the upper cover plate, the pressing screw rod is arranged on the mounting frame, and the pressing screw rod can press the upper cover plate and the connecting pipe on the diameter expansion ring to avoid water in the water storage barrel spilling to the outside; the upper cover plate is symmetrically connected with a bolt on both sides, the bolt is elastically connected with a movable limiting block in the bolt, the connecting pipe is symmetrically connected with an ear plate on both sides, the ear plate is provided with a limiting groove matched with the limiting block and a bolt hole matched with the bolt, the bolt can limit the movable direction of the upper cover plate after being inserted into the bolt hole, simultaneously plays a positioning role to avoid the relative position of the upper cover plate and the connecting pipe being deviated, and the limiting block can limit the bolt after being inserted into the limiting groove to avoid the upper cover plate being separated from the connecting pipe; the water absorption assembly comprises water absorption elements which are sleeved layer by layer, the water absorption elements are elastically connected to the workbench, the water absorption elements are provided with fixed rods connected to the workbench on both sides, the fixed rods are elastically connected with lifting rods matched with the limiting block on the side away from the workbench, the water absorption elements which are sleeved layer by layer can conveniently cooperate with the connecting pipes with different diameters, the fixed rods are arranged to abut against the ear plate to avoid the ear plate descending too much, can conveniently make the water absorption elements contact the paper without applying pressure to the paper, and the lifting rods are arranged to conveniently automatically release the limiting of the ear plate by the limiting block. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic view of the application;

[0025] Figure 2 is a structural schematic view of part A of Figure 1 ;

[0026] Figure 3 is a structural schematic view of part B of Figure 1 ;

[0027] Figure 4 is a C part structure schematic diagram of Figure 2 ;

[0028] Figure 5 is a structure sectional view of the water immersion assembly part;

[0029] Figure 6 is a D part structure schematic diagram of Figure 5 ;

[0030] Figure 7 is an E part structure schematic diagram of Figure 6 ;

[0031] Figure 8 is a structure sectional view of the water absorption assembly part;

[0032] Figure 9 is a structure sectional view of the position of the bolt when the bottom surface of the ear plate abuts against the upper end surface of the fixed rod;

[0033] Figure 10 is a structure sectional view of the position of the clamping assembly when the bottom surface of the ear plate abuts against the upper end surface of the fixed rod;

[0034] In the drawings: 1 - workbench, 2 - connecting pipe, 3 - ear plate, 4 - water storage bucket, 5 - rotating shaft, 6 - connecting frame, 7 - diameter expansion ring, 8 - elastic leakage prevention layer, 9 - mounting frame, 10 - positioning hole, 11 - lengthened plate, 12 - movable rod, 13 - compression threaded rod, 14 - upper cover plate, 15 - supporting leg, 16 - height increasing table, 17 - fixed rod, 18 - lifting rod, 19 - electric push rod, 20 - connecting rod, 21 - insertion piece, 22 - water absorption piece, 23 - supporting rod, 24 - third elastic piece, 25 - supporting piece, 26 - connecting shaft, 27 - first clamping frame, 28 - second clamping frame, 29 - cylindrical rod, 30 - anti-falling groove, 31 - bolt, 32 - positioning groove, 33 - limiting block, 34 - limiting groove, 35 - avoiding groove, 36 - push rod, 37 - first roller, 38 - first elastic piece, 39 - guide hole, 40 - second elastic piece, 41 - second roller, 42 - protruding block, 43 - mounting support. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples, and it should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0036] Referring to Figures 1-10The application provides a non-equal-diameter paper water absorption rate detection device, which comprises a workbench 1, a water immersion assembly and a water absorption assembly. The workbench 1 is arranged to support various components. The water immersion assembly is arranged to facilitate one-side water absorption of paper and limit the one-side water absorption area of the paper. The water absorption assembly is arranged to absorb water with high flowability attached to the surface of the paper, so as to avoid the flowing water from wetting the dry part of the outer side of the paper when the paper is taken off, and affecting the detection result. The water immersion assembly comprises a reversible water storage bucket 4, a plurality of connecting pipes 2 with different diameters and an upper cover plate 14. The water storage bucket 4 is arranged to store water. The water storage bucket 4 after being turned over can facilitate the contact between the paper and water, and then facilitate the water absorption of the paper. The connecting pipes 2 with different diameters can limit the paper with different widths, and facilitate the one-side water absorption rate detection of the paper with different widths. The upper cover plate 14 is arranged to limit the paper on the connecting pipe 2. Meanwhile, the upper cover plate 14 is arranged to limit the water in the communication space formed by the water storage bucket 4 and the connecting pipe 2, so as to avoid the water from spilling outside.

[0037] The opening end of the water storage bucket 4 is connected with a diameter expansion ring 7, which can facilitate the placement of the connecting pipes 2 with different diameters. The two sides of the upper cover plate 14 are symmetrically connected with a latch 31. The two sides of the connecting pipe 2 are symmetrically connected with an ear plate 3. The ear plate 3 is provided with a latch hole matched with the latch 31. After the latch 31 is inserted into the latch hole, the installation position of the upper cover plate 14 on the connecting pipe 2 can be limited, so as to facilitate the positioning of the upper cover plate 14 and avoid the change of the contact position between the connecting pipe 2 and the upper cover plate 14, and facilitate the coincidence of the central axis of the upper cover plate 14 and the central axis of the connecting pipe 2 with different diameters (the lengths of the ear plates 3 arranged on the connecting pipes 2 with different diameters are different, but the distances between the symmetric latch holes on the connecting pipes 2 with different diameters are the same). The latch 31 is provided with a guide hole 39. The guide hole 39 is slidably connected with a limiting block 33 which can elastically extend outside the latch 31. The limiting block 33 slides linearly in the guide hole 39. The end of the limiting block 33 away from the upper cover plate 14 is provided with an inclined surface. The limiting block 33 is arranged to limit the latch 31 in the latch hole, so as to avoid the separation of the latch 31 from the latch hole. The inclined surface can facilitate the insertion of the latch 31 into the latch hole.

[0038] The latch 31 is provided with an avoiding slot 35 at the end away from the upper cover plate 14, the limiting block 33 is rotationally connected to one end of the push rod 36, the push rod 36 can rotate, the end of the push rod 36 away from the limiting block 33 is in contact with the sidewall of the avoiding slot 35 and can slide on the sidewall of the avoiding slot 35, the limiting block 33 is provided with a first torsion spring (not shown in the figure) for resetting the push rod 36, the first torsion spring can facilitate the automatic resetting of the push rod 36, so that the end of the push rod 36 away from the limiting block 33 can always abut against the sidewall of the avoiding slot 35 when there is no external force, each ear plate 3 is provided with a limiting slot 34 matched with the limiting block 33, the limiting slot 34 can facilitate the insertion of the limiting block 33 to limit the latch 31.

[0039] The water absorption assembly comprises water absorption members 22 sleeved one by one, and the water absorption members 22 are all elastically connected to the workbench 1, the water absorption members 22 can absorb the flowing water remaining on the paper, and different numbers of water absorption members 22 from inside to outside can cooperate to cope with different diameters of the connecting pipe 2. The water absorption members 22 are provided with fixed rods 17 connected to the workbench 1 at both sides, the top ends of the fixed rods 17 can provide support for the ear plate 3, so that the water absorption members 22 can only drop to a height position where the paper is in contact with the water absorption members 22 but the water absorption members 22 will not extrude the paper (because the water absorption members 22 need to extrude and discharge the excess water in the paper later, and in special cases such as paper deformation caused by water absorption, slight extrusion of the paper by the water absorption members 22 will not affect the detection result), and the side of each fixed rod 17 away from the workbench 1 is elastically connected with a lifting rod 18 for pushing the push rod 36 to move, the lifting rod 18 can enter the inside of the avoiding slot 35 to push the push rod 36 to move and then make the limiting block 33 retract into the guide hole 39 to release the limitation on the latch 31, when the ear plate 3 drops to be in contact with the fixed rod 17, the upward elastic force received by the lifting rod 18 is much greater than the elastic force received by the limiting block 33 to move outward of the guide hole 39, so the limiting block 33 can completely retract into the guide hole 39 under the pushing of the lifting rod 18. When the water absorption members 22 absorb the flowing water attached to the surface of the paper, the upper cover plate 14 is directly pulled vertically upward, after the connecting pipe 2 stops rising, the top end of the lifting rod 18 is still in the initial position without rising, the lifting rod 18 still limits the limiting block 33 in the guide hole 39, and the lifting rod 18 continues to rise to the initial position with the upper cover plate 14 (at this time, even if the limiting block 33 extends out of the limiting hole, the limiting block 33 cannot be inserted into the limiting slot 34 to limit the latch 31), after the upper cover plate 14 is continuously pulled upward by a certain distance, the latch 31 can be separated from the latch hole.

[0040] Referring to Figures 1-10Further, the upper cover plate 14 of the present application is symmetrically provided with clamping assemblies away from the side of the bolt 31, each of the clamping assemblies comprising a connecting shaft 26 connected to the upper cover plate 14, the connecting shaft 26 being rotatably connected with a first clamping frame 27 and a second clamping frame 28 intersecting each other, the first clamping frame 27 and the second clamping frame 28 being rotatable, and a second torsional spring (not shown in the figure) being provided on the connecting shaft 26 for resetting the first clamping frame 27 and the second clamping frame 28, the second torsional spring being provided for resetting the first clamping frame 27 and the second clamping frame 28, and at the same time, the first clamping frame 27 and the second clamping frame 28 can conveniently clamp the insert 21 inserted into the middle, a liftable connecting rod 20 being provided above the workbench 1, the connecting rod 20 being connected at both ends with the insert 21 for being inserted between the first clamping frame 27 and the second clamping frame 28, the insert 21 being lowered to push the first clamping frame 27 and the second clamping frame 28 to rotate, so that the insert 21 is inserted between the first clamping frame 27 and the second clamping frame 28. The first clamping frame 27 and the second clamping frame 28 of the clamping assembly are each connected with a cylindrical rod 29, the cylindrical rod 29 being provided on the side close to each other with an anti-disengagement groove 30 matched with the insert 21, the arc-shaped side of the upper side of the cylindrical rod 29 being able to more conveniently insert the insert 21 between the first clamping frame 27 and the second clamping frame 28, and the anti-disengagement groove 30 being provided to be matched with the top end plane of the insert 21 to avoid the disengagement of the insert 21 from the clamping of the first clamping frame 27 and the second clamping frame 28 when the insert 21 is raised.

[0041] The workbench 1 is provided with an electronic scale (not shown in the figure) above, and a water pressing device above the workbench 1, the water pressing device comprising a water pressing roller (not shown in the figure), the water pressing roller is rotatably connected with a handle (not shown in the figure), the workbench 1 is provided with a timer (not shown in the figure) above, the electronic scale can facilitate the weighing of paper, the water pressing roller can facilitate the extrusion of excess water in the paper by its own gravity (when the water pressing roller rolls and extrudes the paper, the paper sides will be padded with water-absorbing paper to absorb the excess water in the paper), and the timer can facilitate the worker to control and observe the soaking time of one side of the paper. The connecting frame 6 is connected between the water storage bucket 4 and the workbench 1, the connecting frame 6 is connected to the workbench 1, the connecting frame 6 is rotatably connected with the rotating shaft 5, the rotating shaft 5 can rotate, the rotating shaft 5 is connected to the water storage bucket 4, the rotating shaft 5 can facilitate the overturning of the water storage bucket 4, the rotating shaft 5 is connected with the mounting frame 9, the mounting frame 9 is threadedly connected with the pressing threaded rod 13, the pressing threaded rod 13 can facilitate the pressing of the whole composed of the upper cover plate 14 and the connecting pipe 2 on the expanded diameter ring 7, the upper cover plate 14 is provided with a positioning groove 32 at the top center position and matched with the bottom end of the pressing threaded rod 13, the positioning groove 32 matched with the bottom end of the pressing threaded rod 13 can limit the position of the upper cover plate 14, avoiding the position deviation or disengagement of the upper cover plate 14 from the expanded diameter ring 7, the positioning groove 32 is a cylindrical blind hole matched with the bottom end of the pressing threaded rod 13, the pressing threaded rod 13 can still rotate after being inserted into the positioning groove 32 until the whole composed of the upper cover plate 14, the paper and the connecting pipe 2 is pressed on the expanded diameter ring 7. The rotating shaft 5 is connected with the lengthened plate 11 at one end, the lengthened plate 11 is movably connected with the movable rod 12, the movable rod 12 passes through the lengthened plate 11 and can rotate and slide on the lengthened plate 11, the connecting frame 6 is provided with the positioning hole 10 matched with the movable rod 12, the movable rod 12 inserted into the positioning hole 10 can limit the rotating shaft 5, avoiding the rotation of the rotating shaft 5, and further avoiding the overturning of the water storage bucket 4 to pour the water inside the water storage bucket 4 to the outside.

[0042] Referring to Figures 1-10Further, the upper cover plate 14 and the diameter expansion ring 7 are close to each other and are bonded with the elastic leakage prevention layer 8, the elastic leakage prevention layer 8 can further facilitate the sealing of water, reduce the probability of water leakage to the outside of the connecting pipe 2, and the elastic leakage prevention layer 8 can also cope with the detection of paper with different thicknesses after deformation, further ensuring that the limiting block 33 can be inserted into the limiting groove 34 to limit the bolt 31. The first elastic member 38 is arranged in the guide hole 39, one end of the first elastic member 38 is connected to the limiting block 33, the other end of the first elastic member 38 is connected to the bolt 31, and the first elastic member 38 can facilitate the sliding of the limiting block 33 to the outside of the guide hole 39, thereby facilitating the limiting of the bolt 31. The end of the fixed rod 17 is provided with a guide space, the second elastic member 40 is arranged in the guide space, the lifting rod 18 can be linearly retracted into the guide space, the water absorbing member 22 and the workbench 1 are provided with the elevated platform 16, one end of the elevated platform 16 is connected with a plurality of supporting legs 15, the other end of the supporting legs 15 is connected to the workbench 1, and the water absorbing member 22 is detachably connected with the supporting member 25 below (the water absorbing member 22 and the supporting member 25 can be connected by insertion, bolt connection or other detachable connection mode, which will not be described here), one end of the supporting member 25 is symmetrically connected with the supporting rod 23 below, the supporting rod 23 slides through the elevated platform 16, the third elastic member 24 is arranged outside the supporting rod 23, and the third elastic member 24 is arranged outside the supporting rod 23. The setting of the third elastic member 24 is used for the reset of the supporting member 25, which facilitates the automatic rebound of the supporting member 25 to the initial position after losing external force. The installation support 43 is installed on the elevated platform 16, the electric push rod 19 for driving the connecting rod 20 to lift is arranged on the installation support 43, and the electric push rod 19 can provide power for the lifting of the connecting rod 20.

[0043] Referring to Figures 1-10 Specifically, the first elastic member 38, the second elastic member 40 and the third elastic member 24 are all springs; the first roller 37 rotatable is arranged at the end of the push rod 36 away from the limiting block 33, the second roller 41 rotatable is arranged at the end of the lifting rod 18 in contact with the push rod 36, the first roller 37 and the second roller 41 can convert sliding friction into rolling friction, which is conducive to reducing friction; the diameter expansion ring 7 can adopt a planar ring structure or a tapered ring structure with a wide upper part and a narrow lower part, the tapered ring structure with a wide upper part and a narrow lower part can more conveniently return water flow to the water storage barrel 4 for storage (when the diameter expansion ring 7 adopts the tapered ring structure with a wide upper part and a narrow lower part, the connecting pipe 2 is provided with an inclined surface matched with the diameter expansion ring 7 at the lower end of the pipe wall), the connecting shaft 26 of the upper cover plate 14 is connected with the protrusion 42 for providing support for the insertion member 21, and the connecting shaft 26 passes through the protrusion 42.

[0044] Referring to Figures 1-10 The application provides a non-equal-diameter paper water absorption rate detection method, which comprises the following steps:

[0045] S1, water is added in the water storage bucket 4, dry paper is weighed, a connecting pipe 2 with a proper diameter is selected, the connecting pipe 2, the paper and the upper cover plate 14 are placed on the expansion ring 7 in the order from bottom to top, the connecting pipe 2, the paper and the upper cover plate 14 are pressed on the expansion ring 7 by rotating the pressing screw rod 13, the movable rod 12 is pulled out of the positioning hole 10, the rotating shaft 5 is rotated by 180 degrees, the paper is fully soaked, then the rotating shaft 5 is rotated by 180 degrees, the movable rod 12 is inserted into the positioning hole 10, the connecting pipe 2, the paper and the upper cover plate 14 connected together are removed by rotating the pressing screw rod 13;

[0046] S2, the connecting pipe 2, the paper and the upper cover plate 14 connected together are placed above the water absorbing part 22, the lifting rods 18 are respectively placed in the avoiding grooves 35, the connecting pipe 2 is pressed downward by the electric push rod 19 so that the paper contacts the water absorbing part 22, the water absorbing part 22 absorbs the water with strong flowability on the surface of the paper, the electric push rod 19 drives the upper cover plate 14 to rise and separate from the connecting pipe 2;

[0047] S3, the paper after water absorption is placed between two pieces of water absorbing paper, the water in the paper is pressed out by the water pressing roller, the paper is placed on the electronic scale to be weighed, and the water absorption rate of the paper is calculated.

[0048] Working principle: After the dry paper to be tested is weighed and placed between the connecting pipe 2 and the upper cover plate 14 (the edges of the paper are all outside the limiting range of the connecting pipe 2, so as to avoid the other side of the paper directly contacting water), the bolt 31 is inserted into the bolt hole to reach the specified position, and the limiting block 33 is popped out to the limiting slot 34 to limit the bolt 31 (at this time, the upper cover plate 14, the paper, and the connecting pipe 2 form an integral whole, the paper is compressed between the connecting pipe 2 and the upper cover plate 14, and water cannot leak outside the limiting range of the connecting pipe 2), the connecting pipe 2 is placed on the expanded diameter ring 7 and fixed by the compression threaded rod 13, the water storage bucket 4 is turned over by 180 degrees, and after a certain period of time, the water storage bucket 4 is turned back to the original position, the compression threaded rod 13 is loosened, the integral whole formed by the upper cover plate 14, the paper, and the connecting pipe 2 is removed, and the three are placed above the water absorption part 22 (the lifting rod 18 top end is placed in the avoidance slot 35 to realize positioning, the push rod 36 pushes the lifting rod 18 to descend, and at this time the limiting block 33 cannot be separated from the limiting slot 34), the electric push rod 19 is started, the insertion part 21 is lowered and inserted below the two cylindrical rods 29 (when the connecting pipe 2 is lowered, the lifting rod 18 first pushes the push rod 36 to move, one end of the push rod 36 slides down along the side wall of the avoidance slot 35, and during the sliding process, the end of the push rod 36 is always in contact with the side wall of the avoidance slot 35, and the other end of the push rod 36 drives the limiting block 33 to completely retract into the guide hole 39), the insertion part 21 continues to push the upper cover plate 14 to continue to descend until the bottom surface of the lug plate 3 contacts the top surface of the fixed rod 17, and then stops descending (at this time, the water absorption part 22 inside the connecting pipe 2, which is not pushed and pressed by the connecting pipe 2 and the lug plate 3, contacts the paper to absorb water with strong flowability on the surface of the paper), the insertion part 21 rises and cooperates with the anti-falling slot 30 to drive the upper cover plate 14 to rise (due to the clamping action of the two cylindrical rods 29, the upper cover plate 14 cannot fall during the rising process), the connecting pipe 2 rises a certain distance under the action of gravity and then stops (at this time, the lifting rod 18 continues to rise to the original position), the lifting rod 18 top end gradually releases the limitation on the push rod 36 after the lifting rod 18 no longer rises (at this time, the limiting block 33 cannot be inserted into the limiting slot 34 to limit the bolt 31), the upper cover plate 14 rises to a certain position and then stops rising, the paper is removed, and the paper is placed between two pieces of water absorption paper and then placed on the workbench 1, the excess water on the paper is pressed out onto the water absorption paper through the water pressing roller rolling multiple times, and finally the paper is weighed to calculate the water absorption rate of one side of the paper.

[0049] In summary, the present application provides a non-equal-diameter paper water absorption rate detection method and its detection device, including a workbench, a water immersion assembly, a water absorption assembly, the setting of the workbench can conveniently provide support for each component, the setting of the water immersion assembly can conveniently perform single-side water absorption of paper; the setting of the expansion ring can conveniently abut against connecting pipes of different diameters, thereby conveniently detecting the water absorption rate of paper of different widths, avoiding the influence of the detection result caused by the paper width being smaller than the diameter of the connecting pipe; the compression threaded rod can compress the upper cover plate and the connecting pipe on the expansion ring to avoid water in the water storage bucket from spilling outside; after the bolt is inserted into the bolt hole, the movable direction of the upper cover plate can be limited, and the bolt can also function as a positioning element to avoid the relative position of the upper cover plate and the connecting pipe from deviating, after the limiting block is inserted into the limiting groove, the bolt can be limited to avoid the upper cover plate from separating from the connecting pipe; the water absorption elements that are nested layer by layer can conveniently cooperate with connecting pipes of different diameters, the setting of the fixing rod can abut against the lug plate to avoid the lug plate from descending too much, can conveniently make the water absorption element contact the paper but not apply pressure to the paper, and the setting of the lifting rod can conveniently automatically release the limiting of the lug plate by the limiting block.

[0050] Of course, the present application can also have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present application without departing from the spirit and essence of the present application, but these corresponding changes and modifications should all belong to the protection scope of the claims attached to the present application.

Claims

1. A non-parallel-sided paper water absorption detection device, characterized by, The device comprises a workbench, a water immersion assembly and a water absorption assembly. The water immersion assembly comprises a connecting frame, a rotatable rotating shaft arranged on the connecting frame, a water storage barrel and a mounting frame arranged on the rotating shaft, a diameter expansion ring connected to an opening end of the water storage barrel, a connecting pipe abutting against the diameter expansion ring, an upper cover plate arranged at an end of the connecting pipe away from the diameter expansion ring, a pressing threaded rod arranged at an end of the upper cover plate away from the connecting pipe and used for pressing the upper cover plate, the pressing threaded rod being arranged on the mounting frame, a bolt symmetrically arranged at both sides of the upper cover plate, a movable limiting block elastically connected to the bolt, an ear plate symmetrically arranged at both sides of the connecting pipe, a limiting groove arranged on the ear plate and matched with the limiting block, and a bolt hole arranged on the ear plate and matched with the bolt. The water absorption assembly comprises water absorption elements arranged in layers, the water absorption elements being elastically connected to the workbench, and a fixing rod arranged at both sides of each water absorption element and connected to the workbench, and a lifting rod elastically connected to the fixing rod at a side away from the workbench and matched with the limiting block.

2. The non-circular paper sheet water absorption measuring device according to claim 1, wherein Each bolt is provided with a guide hole, the limiting block elastically extending outside the bolt is slidably connected in the guide hole, an inclined surface is arranged at an end of the limiting block away from the upper cover plate, an avoiding groove is arranged at an end of the bolt away from the upper cover plate and used for the movement of a push rod, the limiting block is rotationally connected to one end of the push rod, and the limiting block is provided with a first torsion spring used for the reset of the push rod.

3. The non-circular paper sheet water absorption measuring device according to claim 1, wherein A clamping assembly is symmetrically arranged at a side of the upper cover plate away from the bolt, the clamping assembly comprises a connecting shaft connected to the upper cover plate, the connecting shaft is rotationally connected with a first clamping frame and a second clamping frame intersecting with each other, a second torsion spring is arranged on the connecting shaft and used for the reset of the first clamping frame and the second clamping frame, a lifting link is arranged above the workbench, and the lifting link is connected with an insertion piece matched with the clamping assembly at both ends.

4. The non-circular paper water absorption measuring device according to claim 3, wherein The first clamping frame and the second clamping frame of the clamping assembly are connected with a cylindrical rod, and the cylindrical rod is provided with a anti-dropping groove matched with the insertion piece at a side close to each other.

5. The non-circular paper hygroscopicity measuring device according to claim 1, wherein An electronic scale is arranged above the workbench, a water pressing device is arranged above the workbench, the water pressing device comprises a water pressing roller, the water pressing roller is rotationally connected with a handle, and a timer is arranged above the workbench.

6. The non-circular paper hygroscopicity measuring device according to claim 1, wherein The connecting frame is connected to the workbench, the connecting frame is rotationally connected to the rotating shaft, the mounting frame is threadedly connected to the pressing threaded rod, a positioning groove matched with a bottom end of the pressing threaded rod is arranged at a top center position of the upper cover plate, one end of the rotating shaft is connected with an extension plate, the extension plate is movably connected with a movable rod, and the connecting frame is provided with a positioning hole matched with the movable rod.

7. The non-circular paper hygroscopicity measuring device according to claim 1, wherein The upper cover plate and the diameter expansion ring are provided with an elastic leakage prevention layer at a side close to each other.

8. The non-circular paper sheet water absorption measuring device according to claim 2, wherein The guide hole is provided with a first elastic element, one end of the first elastic element is connected to the limiting block, and the other end of the first elastic element is connected to the bolt. The end of the fixing rod is provided with a guide space, the guide space is provided with a second elastic element, and the lifting rod can be linearly slidably retracted into the guide space. The water absorbing part is provided with a heightening table between the workbench, one end of the heightening table is connected with several supporting legs, the other end of the supporting legs is connected to the workbench, the water absorbing part is detachably connected with a supporting part below, one end of a supporting rod is symmetrically connected to the supporting part below, the supporting rod is slidably arranged through the heightening table, and the supporting rod is externally sleeved with a third elastic member; The heightening table is provided with a mounting bracket, and the mounting bracket is provided with an electric push rod for driving the connecting rod to lift.

9. A non-parallel-sided paper water absorption rate measuring method based on the non-parallel-sided paper water absorption rate measuring device according to any one of claims 1 to 8, characterized by, The method comprises the following steps: S1, water is added in the water storage bucket, dry paper is weighed, a connecting pipe with a proper diameter is selected, the connecting pipe, the paper, and the upper cover plate are placed on the upper side of the expanding ring in the order from bottom to top, the connecting pipe, the paper, and the upper cover plate are pressed on the expanding ring by rotating the pressing screw rod, the movable rod is pulled out of the positioning hole, the rotating shaft is rotated by 180 degrees, the paper is fully watered, then the rotating shaft is rotated by 180 degrees, the movable rod is inserted into the positioning hole, the pressing screw rod is rotated, and the connecting pipe, the paper, and the upper cover plate connected together are removed; S2, the connecting pipe, the paper, and the upper cover plate connected together are placed above the water absorbing part, the lifting rods are respectively arranged in the avoiding grooves, the electric push rod is started to press the connecting pipe so that the paper contacts the water absorbing part, the water absorbing part absorbs the water with strong flowability on the surface of the paper, and the electric push rod drives the upper cover plate to ascend and separate from the connecting pipe; S3, the water-absorbed paper is placed between two water-absorbed papers, the water pressing roller is pushed to press out the excess water in the paper, the paper is placed on the electronic scale to be weighed, and the water absorption rate of the paper is calculated.

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