CN115773955A

CN115773955A - Paper folding strength detection device and detection method

Info

Publication number: CN115773955A
Application number: CN202310093852.9A
Authority: CN
Inventors: 关庆伟; 林里亨; 林志成; 关则形
Original assignee: Guangzhou Tianshi Packaging Printing Co ltd
Current assignee: Guangzhou Tianshi Packaging Printing Co ltd
Priority date: 2023-02-10
Filing date: 2023-02-10
Publication date: 2023-03-10
Anticipated expiration: 2043-02-10
Also published as: CN115773955B

Abstract

The invention relates to the technical field of folding endurance detection, in particular to a paper folding endurance detection device and a detection method, wherein the paper folding endurance detection device comprises a testing machine and a paper board, a first clamping component for clamping the upper end of the paper board is arranged on a rotating plate, and a first adjusting component for adjusting the position of the first clamping component is arranged between the rotating plate and a connecting plate; the second clamping assembly is used for clamping the lower end of the paperboard, and the right-angle clamping plate is provided with a second adjusting assembly used for adjusting the position of the lower clamping plate; and the paper feeding assembly is used for pushing the paper board to be close to the testing machine. This scheme has set up the centre gripping subassembly at the test port of test machine to the centre gripping of paper to utilize adjusting part to flare-out the corner of centre gripping paper, utilize cutting assembly to carry out automatic cutout with the paper of straightening, and will cut the chuck department that the paper after finishing is sent into the test machine automatically, utilize the pay-off subassembly to impel the cutting with remaining paper after the cutting finishes, conveniently carry out short-term test to the paper.

Description

Paper folding strength detection device and detection method

Technical Field

The invention relates to the technical field of folding endurance detection, in particular to a device and a method for detecting the folding endurance of paper.

Background

The folding endurance is an index of the fatigue strength of the paper in folding, and is a measure of the number of times of folding, expressed in terms of double folds, required for the paper to break after being stretched under a certain force and then folded back and forth, the longitudinal folding endurance is measured according to a longitudinal cutting sample, and the transverse folding endurance is measured according to a transverse cutting sample.

The operation steps of the existing paper folding endurance detection are that two ends (or middle sections) of a paper tape are manually clamped on two chucks (the chucks comprise an upper chuck and a lower chuck), an adjustable tension applying mechanism is arranged above the upper chuck, the lower chuck is connected with a driving motor, the lower chuck is driven by the motor to rotate in a reciprocating manner, the paper tape is repeatedly folded until the paper tape is disconnected, and the detection is automatically stopped. There are improvements to the above described detection process:

at first, the material loading and unloading of paper tape all are manual operation, very inconvenient to need straighten the paper tape after the material loading is accomplished, prevent to detect the precision and reduce, and the current mode of straightening is the interval between two chucks of manual regulation after the centre gripping finishes, and the regulation precision is lower, and the regulation mode is inconvenient. In addition, the width of the paper tape is required (the width of the paper tape must be smaller than that of the chuck), and the paper tape needs to be completely clamped in the detection process, so that the detection paper needs to be preprocessed, and the paper needs to be regularly cut (generally, a manual cutting mode is adopted), so that the detection efficiency is reduced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a paper folding endurance detection device and a detection method, which can effectively solve the problem that the detection efficiency is reduced by manual feeding and pretreatment of paper in the prior art.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the invention provides a paper folding strength detection device, which comprises a testing machine, a paperboard and an external connection plate, wherein the external connection plate is fixedly arranged on the outer wall of the testing machine, a sliding frame is slidably arranged on the external connection plate, a feeding hole is formed in the sliding frame, a guide frame for guiding the paperboard is arranged on the sliding frame, an installation frame is fixedly arranged on the sliding frame, two right-angle clamping plates are slidably arranged on the bottom wall of the installation frame, a connection plate is fixedly arranged on the installation frame, a rotating plate is rotatably arranged on the connection plate, a first clamping assembly for clamping the upper end of the paperboard is arranged on the rotating plate, and a first adjusting assembly for adjusting the position of the first clamping assembly is arranged between the rotating plate and the connection plate; the second clamping assembly is used for clamping the lower end of the paperboard, is installed at the lower end of the right-angle clamping plate and comprises a lower clamping plate which is installed on the right-angle clamping plate in a sliding mode, and a second adjusting assembly used for adjusting the position of the lower clamping plate is arranged on the right-angle clamping plate; the paper feeding assembly is used for pushing a paperboard to approach the testing machine and comprises two guide plates symmetrically arranged on a sliding frame, guide grooves are formed in the two guide plates, each guide groove comprises an arc-shaped groove and a straight groove, linkage rods are arranged on the two guide grooves in a sliding mode, a feeding plate is elastically arranged on one side, close to the two linkage rods, of each linkage rod, a transmission assembly is arranged between each linkage rod and the corresponding rotating plate, when the rotating plates rotate to be far away from the testing machine, the linkage rods slide in the straight grooves towards the testing machine, and when the rotating plates rotate to be close to the testing machine, the linkage rods slide in the arc-shaped grooves to be far away from the testing machine; the cutting assembly is used for cutting the paperboard and is positioned at the side wall of the right-angle clamping plate close to the testing machine; the testing machine is characterized in that a first chuck and a second chuck are respectively arranged on the testing machine, the first chuck and the second chuck are driven by electromagnetism, a push plate used for pressing the inclined plate is arranged on the testing machine, and a first contact switch used for controlling the first chuck and the second chuck is arranged on the push plate.

Further, the first clamping assembly comprises a sliding block which is slidably mounted on the rotating plate, two sliding carriages are slidably mounted on one side, close to the testing machine, of the sliding block, the bottom ends of the two sliding carriages are movably inserted with movable plates, the bottom ends of the two movable plates are fixedly mounted with upper clamping plates, and limiting plates are arranged at one ends, close to the testing machine, of the two upper clamping plates.

Further, first adjusting part is including seting up two chutes on the rotor plate diapire, two the one end that the chute is close to the test machine is close to gradually, two the top of balladeur train is slidable mounting respectively in two chutes, all install first wedge, two on the outer wall of one side is kept away from mutually to the movable plate all be equipped with first inclined plane on the first wedge, fixed mounting has the board of flare-outing on the rotor plate, install two second wedges on the board of flare-outing, two all be equipped with the second inclined plane on the second wedge.

Furthermore, a fourth inclined plane is arranged at one end, close to the testing machine, of the connecting plate, a third inclined plane is arranged on the sliding block, and when the rotating plate turns to the testing machine, the sliding block is pushed to the testing machine.

Further, the second adjusting part comprises a movable hole formed in the right-angle clamping plate, an adjusting block is arranged on the lower clamping plate and is slidably mounted in the movable hole, a third air bag is arranged above the adjusting block, a second air bag is fixedly mounted on the outer wall, close to one side, of the right-angle clamping plate, and the third air bag is communicated with the second air bag.

Further, transmission assembly is including inserting two first dwangs of establishing on the wall of rotor plate both sides, rotate on the both sides outer wall of connecting plate and install the second dwang, the cover is equipped with first gear on the first dwang, and rotates on the second dwang and install the second gear with first gear engaged with, connecting plate one end fixed mounting is kept away from to the second dwang has the mounting panel, the telescopic link is installed in the rotation of mounting panel bottom, the telescopic link is kept away from mounting panel one end and is connected with the trace upper end.

Further, the top fixed mounting of right angle splint has the slide, the spout with slide matched with is seted up to the mounting bracket bottom, two the slide is close to one end fixed mounting mutually and has the electro-magnet, be equipped with on the inside wall of straight flute and press the switch, and press switch and electro-magnet electric connection, the junction of straight flute and arc wall rotates and installs the one-way plate, be equipped with the baffle on the inner wall of straight flute.

Further, the cutting assembly comprises a motor fixedly mounted on the side wall of the connecting plate, a reciprocating lead screw is fixedly mounted on an output shaft of the motor, two knife rests are slidably mounted on the side wall, far away from the right-angle clamping plate, of the side wall, and a double-end blade is fixedly mounted between the knife rests.

Further, be equipped with the splitter box in the right angle splint, the outer wall of right angle splint is equipped with a plurality of air cocks, every the air cock all is linked together with the splitter box, fixed mounting has the clamp plate on the rotor plate, be equipped with first gasbag on the connecting plate, and first gasbag is linked together with the splitter box, be equipped with the solenoid valve in the splitter box, and first gasbag and splitter box junction are equipped with the check valve, the rotor plate is close to test machine one end fixed mounting has the swash plate, be equipped with the second contact switch who uses control solenoid in the push pedal.

A paper folding endurance detection method comprises the following steps:

s1: the paperboard is fed between the two right-angle clamping plates from the feeding port, and the upper end and the lower end of the paperboard are respectively clamped through the first clamping assembly and the second clamping assembly;

s2; driving the sliding frame to move towards the direction of the testing machine, and cutting the paperboard through the cutting assembly;

s3; the cut paper board enters between a first chuck and a second chuck along with a sliding frame under the clamping of a first clamping assembly and a second clamping assembly, the first chuck and the second chuck clamp the paper tape, the first clamping assembly and the second clamping assembly loosen the paper tape, and feeding is finished at the moment;

s4, performing primary filtration; and adjusting the tension value, starting the testing machine, enabling the second chuck to do reciprocating swing until the paper tape is broken, and automatically opening the first chuck and the second chuck to loosen the paper tape.

Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:

this scheme has set up the centre gripping subassembly in the test port of test machine to the centre gripping of paper to utilize adjusting part to flare-out the corner of centre gripping paper, utilize cutting assembly to carry out automatic cutout with the paper of stretching straightly, and the chuck department of test machine is sent into automatically to the paper after finishing cutting, utilize the pay-off subassembly to impel the cutting with remaining paper after finishing cutting, realize replacing artifical material loading and the automatic preliminary treatment to the paper with this, improve subsequent detection efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is an overall schematic view of the present invention;

FIG. 2 is a schematic view of the carriage portion of the present invention;

FIG. 3 is a schematic view of the structure of the paper feeding assembly of the present invention;

FIG. 4 is a schematic view of a right-angle clamping plate part according to the present invention;

FIG. 5 is an enlarged view of the structure of portion A of FIG. 4;

FIG. 6 is an enlarged view of the structure of portion B of FIG. 3;

FIG. 7 is a schematic view showing the structure of a rotating plate portion in the present invention;

FIG. 8 is a schematic view of a first clamping assembly of the present invention;

FIG. 9 is a schematic view of the structure of the guide plate portion of the present invention;

FIG. 10 is an enlarged view of the structure of portion C of FIG. 9;

FIG. 11 is a schematic view of the connection between the rectangular clamping plate and the fixing plate of the present invention;

FIG. 12 is a schematic view of a cutting assembly according to the present invention;

FIG. 13 is a cross-sectional view of the quarter-turn cleat of the present invention;

FIG. 14 is a schematic structural view of a push plate according to the present invention;

FIG. 15 is a schematic view of the double-ended blade of the present invention in a cut state.

The reference numerals in the drawings represent: 1. a testing machine; 2. a first chuck; 3. a second chuck; 4. an outer connecting plate; 5. a carriage; 6. a mounting frame; 7. a connecting plate; 8. a rotating plate; 9. a right-angle splint; 10. an upper splint; 11. a lower splint; 12. a sloping plate; 13. straightening a plate; 14. a chute; 15. a carriage; 16. a movable plate; 17. a first wedge block; 18. a first inclined plane; 19. a second wedge block; 20. a second inclined plane; 21. a slider; 22. a third inclined plane; 23. a fourth slope; 24. a double-ended blade; 25. a limiting plate; 26. pressing a plate; 27. a first air bag; 28. an air tap; 29. an adjusting block; 30. a second air bag; 31. a third air bag; 32. a first rotating lever; 33. a first gear; 34. a second rotating lever; 35. a second gear; 36. mounting a plate; 37. a linkage rod; 38. an elastic rod; 39. a feeding plate; 40. a guide plate; 41. a guide groove; 4101. an arc-shaped slot; 4102. a straight groove; 4103. a one-way plate; 4104. a baffle plate; 4105. pressing a switch; 4106. a chute; 4107. a slide plate; 4108. an electromagnet; 42. a feeding port; 43. a guide frame; 44. a motor; 45. a reciprocating screw; 46. a tool holder; 47. a paperboard; 48. a splitter box; 49. an electromagnetic valve; 50. a first contact switch; 51. a second contact switch; 52. and (3) pushing a plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention will be further described with reference to the following examples.

Example (b): referring to fig. 1-15, a paper folding strength detection apparatus and a detection method thereof, including a testing machine 1 and a paper board 47, further including an outer board 4, fixedly mounted on an outer wall of the testing machine 1, a carriage 5 slidably mounted on the outer board 4, a feeding port 42 formed on the carriage 5, and a guide frame 43 for guiding the paper board 47 on the carriage 5, a mounting frame 6 fixedly mounted on the carriage 5, two right-angle clamping plates 9 slidably mounted on a bottom wall of the mounting frame 6, a connecting plate 7 fixedly mounted on the mounting frame 6, a rotating plate 8 rotatably mounted on the connecting plate 7, a first clamping assembly disposed on the rotating plate 8 for clamping an upper end of the paper board 47, the first clamping assembly including a slider 21 slidably mounted on the rotating plate 8, two carriages 15 slidably mounted on a side of the slider 21 close to the testing machine 1, movable plates 16 movably inserted into bottom ends of the two carriages 15, upper clamping plates 10 fixedly mounted on bottom ends of the two movable plates 16, a limiting plate 25 disposed on ends of the two upper clamping plates 10 close to the testing machine 1, a first adjusting assembly disposed on ends of the two upper clamping plates 10 close to the testing machine, a side close to the testing machine 1, a wedge plate 25 disposed between the rotating plate 8 and the connecting plate 7, a wedge-shaped adjusting assembly disposed on a side of the rotating plate, the rotating plate 8 and the connecting plate 7, the connecting plate, the two wedge-shaped sliding plates 14 disposed on the rotating plate, a wedge-shaped sliding plate 17, a wedge-shaped sliding block 13 disposed on the two sliding blocks 13 disposed on the outer wall of the two sliding plates, a second inclined plate 14, a second inclined plate 13 disposed on the outer wall of the two inclined plates, a second inclined plate 13 disposed on the outer wall of the two inclined plate, a second inclined plate 13 disposed on the outer wall of the two inclined plate, a chute 14, a second inclined plate 13 disposed on the testing machine, a wedge-shaped chute 14, a second inclined plate 13 disposed on the chute 17, and a second inclined plate, and a wedge-shaped chute 17 disposed on the chute 17, and a second inclined plate, a wedge-shaped chute 17 disposed on the outer wall of the chute 14, and a second inclined plate, and a chute 17 disposed on the chute 17, the slider 21 is provided with a third inclined surface 22, and when the rotating plate 8 is turned toward the testing machine 1, the slider 21 is pushed toward the testing machine 1.

In order to conveniently carry out quick material loading to the paper, this scheme has installed an outer fishplate bar 4 in test machine 1's test port department, has set up the subassembly that is used for accomplishing tailorring, centre gripping and pay-off of paper on the outer fishplate bar 4 to this realizes replacing artifical material loading and the automatic preliminary treatment to the paper. The specific implementation mode is as follows:

the paper is inserted from the feeding port 42, the bottom end of the paper is located in the guide frame 43, the guide frame 43 can prevent the paper from being inclined when being pushed, and has a guiding effect, the paper is located between the two right-angle clamping plates 9 at the moment, the rotating plate 8 is pulled upwards (not to reach the maximum angle), the rotating plate 8 is far away from the testing machine 1, the contact surface between the third inclined surface 22 and the fourth inclined surface 23 is reduced, the pressing effect of the fourth inclined surface 23 on the third inclined surface 22 is reduced, so that the sliding block 21 is far away from the testing machine 1, and the two sliding carriages 15 are driven to be far away from the testing machine 1; as shown in fig. 7 and 8, the carriage 15 moves away from the testing machine 1 along the inclined groove 14, so that the two upper plates 10 move away from each other, and when the rotating plate 8 is pulled up (the rotating plate 8 moves away from the testing machine 1), the linkage 37 moves away from the testing machine 1 along the arc-shaped groove 4101, and the linkage 37 is initially located at the initial end of the arc-shaped groove 4101; as shown in fig. 3 and 9, the two feeding plates 39 are also far away from each other along the arc-shaped groove 4101, at this time, the paper can be pushed forward, feeding is stopped until one end of the paper abuts against the limit plate 25 on the upper clamping plate 10, the rotating plate 8 is reset, and at this time, manual feeding is partially completed. It is noted that the distance between the limiting plate 25 and the right-angle clamping plate 9 is the width of the subsequent test paper tape, that is, the shortest distance between the right-angle clamping plate 9 and the limiting plate 25 is smaller than the width of the first chuck 2 and the second chuck 3.

Above-mentioned in-process that resets, slider 21 turns to the tip of connecting plate 7, third inclined plane 22 and fourth inclined plane 23 contact gradually, under the pressure of fourth inclined plane 23 moves, slider 21 is promoted and is close to towards tester 1 direction, slider 21 drives two balladeur train 15 and is close to towards tester 1 direction, when balladeur train 15 is close to tester 1, slide along chute 14 and be close to towards tester 1 direction more, two chute 14 distances are more near, thereby make two balladeur train 15 be close to each other, thereby it presss from both sides the upper end of paper to drive two punch holder 10, and straighten towards tester 1 direction. On the basis, when the two carriages 15 approach each other, the two movable plates 16 below the two carriages approach each other, the first wedge blocks 17 on the movable plates 16 fully contact with the second wedge blocks 19 on the straightening plates 13, and the two first wedge blocks 17 move upwards by pressing the second inclined surfaces 20 against the first inclined surfaces 18, so that the movable plates 16 and the upper clamp plate 10 below are driven to move upwards, and the upper clamp plate 10 straightens the paper upwards.

Referring to fig. 1-15, a second clamping assembly for clamping the lower end of the paper board 47 is installed at the lower end of the right-angle splint 9, and includes a lower splint 11 slidably installed on the right-angle splint 9, a second adjusting assembly for adjusting the position of the lower splint 11 is provided on the right-angle splint 9, the second adjusting assembly includes a movable hole provided on the right-angle splint 9, an adjusting block 29 is provided on the lower splint 11, and the adjusting block 29 is slidably installed in the movable hole, a third air bag 31 is provided above the adjusting block 29, a second air bag 30 is fixedly installed on the outer wall of one side of the two right-angle splints 9 close to each other, and the third air bag 31 is communicated with the second air bag 30.

On the basis of accomplishing upper end centre gripping and flare-out, this scheme has still set up second centre gripping subassembly, carries out the centre gripping to the paper lower extreme, and concrete step is:

when the two right-angle clamping plates 9 approach each other, the lower clamping plate 11 is used for clamping the paper and pressing the second air bag 30, the air in the second air bag 30 is pressed into the third air bag 31 (as shown in fig. 5), the third air bag 31 is expanded to push the adjusting block 29 to move downwards, and the adjusting block 29 drives the lower clamping plate 11 to move downwards, so that the clamped paper is pulled downwards, and the purpose of straightening the lower end of the paper is achieved.

Reference is made to fig. 1-15; cutting assembly for cutting out of cardboard 47, be located the lateral wall department that right angle splint 9 is close to test machine 1, cutting assembly includes motor 44 of fixed mounting on the connecting plate 7 lateral wall, and fixed mounting has reciprocal lead screw 45 on motor 44's the output shaft, and equal slidable mounting has knife rest 46 on the lateral wall that two right angle splint 9 kept away from mutually, and fixed mounting has double-end blade 24 between two knife rest 46.

Under the clamping action of the first clamping assembly and the second clamping assembly, paper is fixed, the motor 44 is started to drive the reciprocating lead screw 45 to rotate, the reciprocating lead screw 45 rotates to generate thread transmission with a threaded hole in the tool rest 46 to drive the tool rest 46 to move upwards or downwards, the motor 44 stops when the tool rest 46 moves to the end of the reciprocating lead screw 45 to wait for the next start, and therefore twice cutting can be achieved through one reciprocating stroke. The knife rest 46 drives the double-head blade 24 to cut the clamped paper, the cut part is a part exceeding the right-angle clamping plate 9, as shown in fig. 15, and the distance between the upper clamping plate 10 and the lower clamping plate 11 and the right-angle clamping plate 9 is very short and is slightly larger than the thickness of the double-head blade 24, so that the width of the cut paper tape can be better grasped, and the subsequent detection precision is improved.

Reference is made to fig. 1-14; a paper feeding assembly for pushing a paper board 47 to approach the testing machine 1, which includes two guide plates 40 symmetrically mounted on the sliding frame 5, wherein guide grooves 41 are formed in the two guide plates 40, each guide groove 41 includes an arc groove 4101 and a straight groove 4102, linkage rods 37 are slidably mounted on the two guide grooves 41, a feeding plate 39 is elastically mounted on one side of the two linkage rods 37, which is close to the test machine 1, an elastic rod 38 is disposed between the feeding plate 39 and the linkage rods 37, a transmission assembly is disposed between the linkage rods 37 and the rotating plate 8, when the rotating plate 8 rotates to be far away from the testing machine 1, the linkage rods 37 slide in the straight groove 4102 towards the testing machine 1, when the rotating plate 8 rotates to be close to the testing machine 1, the linkage rods 37 slide in the direction of being far away from the testing machine 1 in the arc groove 1, the transmission assembly includes two first rotating rods 32 inserted on two side walls of the rotating plate 8, second rotating rods 34 are rotatably mounted on two outer walls of the connecting plate 7, a first gear 33 is sleeved on the first rotating rod 32, a second gear 35 engaged with the first gear 33 is rotatably mounted on one end of the second rotating rod 34 far away from the connecting plate 7, and one end of the connecting plate 36 is connected with the connecting plate 36; the top end of the right-angle splint 9 is fixedly provided with a sliding plate 4107, the bottom of the mounting frame 6 is provided with a sliding groove 4106 matched with the sliding plate 4107, two sliding plates 4107 are close to one end and fixedly provided with an electromagnet 4108, the inner side wall of the straight groove 4102 is provided with a pressing switch 4105, the pressing switch 4105 is electrically connected with the electromagnet 4108, the joint of the straight groove 4102 and the arc-shaped groove 4101 is rotatably provided with a one-way plate 4103, the inner wall of the straight groove 4102 is provided with a baffle 4104, the testing machine 1 is provided with a first chuck 2 and a second chuck 3 respectively, the first chuck 2 and the second chuck 3 are both driven by electromagnetism, the testing machine 1 is provided with a push plate 52 for pressing the inclined plate 12, and the push plate 52 is provided with a first contact switch 50 for controlling the first chuck 2 and the second chuck 3.

After the cutting process is completed, the sliding frame 5 is driven by an external driving assembly to move towards the tester 1, and the upper clamping plate 10 and the lower clamping plate 11 clamp the cut paper tape to enter the positions of the first chuck 2 and the second chuck 3, as shown in fig. 1, the first chuck 2 has a space in the middle to pass through, and the second chuck 3 has a space below, so that the paper tape is sent between the first chuck 2 and the second chuck 3, at this time, the inclined plate 12 on the rotating plate 8 is pressed by the push plate 52 to tilt up and start to rotate, the rotating plate 8 is pressed to the first contact switch 50, at this time, the first chuck 2 and the second chuck 3 are started to clamp the stretched paper tape, and through the above description, when the rotating plate 8 is pushed, the two upper clamping plates 10 are separated to release the paper tape, and the lower clamping plate 11 is driven by the right-angle clamping plate 9, the right angle splint 9 is clamped by mutually attracting the electromagnets 4108 (as shown in fig. 11), when the rotating plate 8 rotates to the maximum angle, the first rotating rod 32 rotates along with the rotating plate 8, and the first rotating rod 32 is installed at the rotating shaft of the rotating plate 8, the first rotating rod 32 drives the second rotating rod 34 to rotate through gear transmission (as shown in fig. 6), the rotating direction of the second rotating rod 34 is opposite to the rotating direction of the rotating plate 8, when the rotating plate 8 rotates away from the testing machine 1, the second rotating rod 34 drives the linking rod 37 to move away from the testing machine 1 along the arc-shaped groove 4101, when reaching the other end of the arc-shaped groove 4101, the one-way plate 4103 is pressed (as shown in fig. 9) to enter the straight groove 4102, the one-way plate 4103 cannot return along the original path of the arc-shaped groove 4101 any more but moves along the straight groove 2, when entering the straight groove 4102, the pressing switch 4105 is pressed to cut off the electromagnets 4108, thereby two right angle splint 9 loosen, and lower splint 11 loosen the paper tape, accomplish the paper tape pay-off.

After feeding is completed, the sliding frame 5 is reset, the rotating plate 8 turns to the testing machine 1, the linkage rod 37 moves towards the testing machine 1 along the straight groove 4102 at the moment, the two feeding plates 39 push the rest paper (the part which is not cut) to the upper clamping plate 10 and the lower clamping plate 11 at the moment, then the clamping, straightening and cutting operations are repeated, and feeding is performed next time after testing is completed.

It should be noted that the telescopic rod mounting plates 36 are connected by universal joints, which facilitates the sliding of the linkage rods 37.

Referring to fig. 1-15, a diversion trench 48 is provided in the right-angle clamp plate 9, a plurality of air nozzles 28 are provided on the outer wall of the right-angle clamp plate 9, each air nozzle 28 is communicated with the diversion trench 48, a pressing plate 26 is fixedly mounted on the rotating plate 8, a first air bag 27 is provided on the connecting plate 7, the first air bag 27 is communicated with the diversion trench 48, an electromagnetic valve 49 is provided in the diversion trench 48, a one-way valve is provided at the joint of the first air bag 27 and the diversion trench 48, an inclined plate 12 is fixedly mounted at one end of the rotating plate 8 close to the testing machine 1, and a second contact switch 51 for controlling the electromagnetic valve 49 is provided on the push plate 52.

In order to prevent that after the paper tape test is finished, when the paper tape does not fall down smoothly from the first chuck 2 and the second chuck 3, the shunting groove 48 is arranged in the right-angle clamping plate 9, when the rotating plate 8 rotates, the pressing plate 26 can be driven to compress the first air bag 27, the first air bag 27 is provided with an air inlet hole and a one-way valve for air suction, the gas in the first air bag 27 is pressed into the shunting groove 48, wherein the rotating plate 8 is pulled by hands when the first feeding of the paper is carried out, the first air adding is completed, the gas cannot be sprayed out at the moment, when the inclined plate 12 is in contact with the second contact switch 51 on the pushing plate 52, the electromagnetic valve 49 in the shunting groove 48 is opened, the gas is sprayed out from the air nozzle 28, the paper tape which does not fall is blown off, and the detection precision is improved.

A paper folding endurance detection method comprises the following steps:

s1: the paper plate 47 is fed into the space between the two right-angle clamping plates 9 from the feeding port 42, and the upper end and the lower end of the paper plate 47 are respectively clamped by the first clamping assembly and the second clamping assembly;

s2; the sliding frame 5 is driven to move towards the direction of the testing machine 1, and the paper plate 47 is cut through the cutting component;

s3, performing primary filtration; the cut paper plate 47 enters between the first chuck 2 and the second chuck 3 along with the sliding frame 5 under the clamping of the first clamping assembly and the second clamping assembly, the paper tape is clamped by the first chuck 2 and the second chuck 3, the paper tape is loosened by the first clamping assembly and the second clamping assembly, and feeding is finished at the moment;

s4, performing primary filtration; and adjusting the tension value, starting the testing machine 1, enabling the second chuck 3 to swing in a reciprocating manner until the paper tape breaks, and automatically opening the first chuck 2 and the second chuck 3 to loosen the paper tape.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and the modifications or the substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a paper folding endurance detection device, includes test machine (1) and cardboard (47), its characterized in that still includes:

the test machine comprises an outer connecting plate (4) fixedly mounted on the outer wall of a test machine (1), a sliding frame (5) is mounted on the outer connecting plate (4) in a sliding mode, a feeding hole (42) is formed in the sliding frame (5), a guide frame (43) used for guiding a paper board (47) is arranged on the sliding frame (5), a mounting frame (6) is fixedly mounted on the sliding frame (5), two right-angle clamping plates (9) are mounted on the bottom wall of the mounting frame (6) in a sliding mode, a connecting plate (7) is fixedly mounted on the mounting frame (6), a rotating plate (8) is rotatably mounted on the connecting plate (7), a first clamping assembly used for clamping the upper end of the paper board (47) is arranged on the rotating plate (8), and a first adjusting assembly used for adjusting the position of the first clamping assembly is arranged between the rotating plate (8) and the connecting plate (7);

the second clamping assembly is used for clamping the lower end of the paperboard (47), is arranged at the lower end of the right-angle clamping plate (9), and comprises a lower clamping plate (11) which is slidably arranged on the right-angle clamping plate (9), and a second adjusting assembly used for adjusting the position of the lower clamping plate (11) is arranged on the right-angle clamping plate (9);

the paper feeding assembly is used for pushing a paper board (47) to approach the testing machine (1) and comprises two guide plates (40) symmetrically arranged on a sliding frame (5), guide grooves (41) are formed in the two guide plates (40), each guide groove (41) comprises an arc-shaped groove (4101) and a straight groove (4102), linkage rods (37) are arranged on the two guide grooves (41) in a sliding mode, a feeding plate (39) is elastically arranged on one side, close to each linkage rod (37), of each linkage rod (37), a transmission assembly is arranged between each linkage rod (37) and a rotating plate (8), when the rotating plate (8) rotates to be far away from the testing machine (1), the linkage rods (37) slide in the straight grooves (4102) in the direction of the testing machine (1), and when the rotating plate (8) rotates to approach the testing machine (1), the linkage rods (37) slide in the arc-shaped grooves (4101) in the direction of the testing machine (1);

the cutting assembly is used for cutting the paperboard (47) and is positioned at the side wall of the right-angle clamping plate (9) close to the testing machine (1);

the testing machine comprises a testing machine body and is characterized in that a first chuck (2) and a second chuck (3) are respectively arranged on the testing machine body (1), the first chuck (2) and the second chuck (3) are driven by electromagnetism, a push plate (52) used for pressing an inclined plate (12) is arranged on the testing machine body (1), and a first contact switch (50) used for controlling the first chuck (2) and the second chuck (3) is arranged on the push plate (52).

2. The paper folding endurance detecting device according to claim 1, wherein the first clamping assembly comprises a slider (21) slidably mounted on the rotating plate (8), two carriages (15) are slidably mounted on one side of the slider (21) close to the testing machine (1), movable plates (16) are movably inserted into bottom ends of the two carriages (15), an upper clamping plate (10) is fixedly mounted at bottom ends of the two movable plates (16), and a limiting plate (25) is arranged at one end of each of the two upper clamping plates (10) close to the testing machine (1).

3. The paper folding endurance detection apparatus according to claim 2, wherein the first adjusting assembly includes two chutes (14) opened on a bottom wall of the rotating plate (8), two of the chutes (14) are gradually close to one end of the testing machine (1), top ends of the two carriages (15) are respectively slidably mounted in the two chutes (14), the outer wall of one side of the movable plate (16) away from the movable plate (16) is provided with a first wedge block (17), the two first wedge blocks (17) are provided with first inclined planes (18), the rotating plate (8) is fixedly provided with the straightening plate (13), the straightening plate (13) is provided with two second wedge blocks (19), and the two second wedge blocks (19) are provided with second inclined planes (20).

4. The paper folding endurance detecting apparatus of claim 2, wherein a fourth inclined surface (23) is provided at an end of the connecting plate (7) close to the testing machine (1), a third inclined surface (22) is provided on the slider (21), and when the rotating plate (8) turns to the testing machine (1), the slider (21) is pushed toward the testing machine (1).

5. The paper folding endurance detection device of claim 1, wherein the second adjustment assembly comprises a movable hole formed in the right angle clamping plate (9), the lower clamping plate (11) is provided with an adjustment block (29), the adjustment block (29) is slidably mounted in the movable hole, a third air bag (31) is arranged above the adjustment block (29), the outer walls of two adjacent right angle clamping plates (9) are fixedly provided with a second air bag (30), and the third air bag (31) is communicated with the second air bag (30).

6. The paper folding endurance detection device of claim 1, wherein the transmission assembly comprises two first rotating rods (32) inserted on two side walls of the rotating plate (8), a second rotating rod (34) is installed on outer walls of two sides of the connecting plate (7) in a rotating mode, a first gear (33) is sleeved on the first rotating rod (32), a second gear (35) meshed with the first gear (33) is installed on the second rotating rod (34) in a rotating mode, one end of the connecting plate (7) is far away from the second rotating rod (34), a mounting plate (36) is installed at the bottom of the mounting plate (36) in a rotating mode, and the telescopic rod is far away from one end of the mounting plate (36) and connected with the upper end of the linkage rod (37).

7. The paper folding endurance detection device according to claim 1, wherein a sliding plate (4107) is fixedly mounted at the top end of the right-angle clamping plate (9), a sliding groove (4106) matched with the sliding plate (4107) is formed in the bottom of the mounting frame (6), an electromagnet (4108) is fixedly mounted at one end, close to one end, of each of the two sliding plates (4107), a pressing switch (4105) is arranged on the inner side wall of the straight groove (4102), the pressing switch (4105) is electrically connected with the electromagnet (4108), a one-way plate (4103) is rotatably mounted at the joint of the straight groove (4102) and the arc-shaped groove (4101), and a baffle plate (4104) is arranged on the inner wall of the straight groove (4102).

8. The paper folding endurance detection device according to claim 1, wherein the cutting assembly comprises a motor (44) fixedly mounted on a side wall of the connection plate (7), an output shaft of the motor (44) is fixedly mounted with a reciprocating lead screw (45), two tool rests (46) are slidably mounted on side walls of the two right angle clamping plates (9) away from each other, and a double-head blade (24) is fixedly mounted between the two tool rests (46).

9. The paper folding endurance detecting device according to claim 1, wherein a shunting groove (48) is provided in the right-angle clamping plate (9), an outer wall of the right-angle clamping plate (9) is provided with a plurality of air nozzles (28), each air nozzle (28) is communicated with the shunting groove (48), a pressing plate (26) is fixedly mounted on the rotating plate (8), a first air bag (27) is provided on the connecting plate (7), the first air bag (27) is communicated with the shunting groove (48), an electromagnetic valve (49) is provided in the shunting groove (48), a one-way valve is provided at a connection between the first air bag (27) and the shunting groove (48), an inclined plate (12) is fixedly mounted at one end of the rotating plate (8) close to the testing machine (1), and a second contact switch (51) for controlling the electromagnetic valve (49) is provided on the pushing plate (52).

10. A method of testing adapted for use with a test device according to any of claims 1-9, comprising the steps of:

s1: the paperboard (47) is fed between the two right-angle clamping plates (9) from the feeding port (42), and the upper end and the lower end of the paperboard (47) are respectively clamped by the first clamping assembly and the second clamping assembly;

s2; the sliding frame (5) is driven to move towards the direction of the testing machine (1), and the paper board (47) is cut through the cutting assembly;

s3, performing primary filtration; the cut paper board (47) enters between the first chuck (2) and the second chuck (3) along with the sliding frame (5) under the clamping of the first clamping assembly and the second clamping assembly, the paper tape is clamped by the first chuck (2) and the second chuck (3), the paper tape is loosened by the first clamping assembly and the second clamping assembly, and feeding is finished at the moment;

s4, performing primary filtration; and adjusting the tension value, starting the testing machine (1), enabling the second chuck (3) to swing in a reciprocating manner until the paper tape is broken, and automatically opening and loosening the paper tape by the first chuck (2) and the second chuck (3).