CN210221737U

CN210221737U - Printing paper MIT formula is able to bear or endure folding degree experiment appearance

Info

Publication number: CN210221737U
Application number: CN201920462472.7U
Authority: CN
Inventors: Jinglin Liu; 刘京麟; Guoqing Xu; 徐国庆; Honggang Zhang; 张红刚
Original assignee: TIANJIN PENGXINGSHUN PRINTING Co Ltd
Current assignee: TIANJIN PENGXINGSHUN PRINTING Co Ltd
Priority date: 2019-04-08
Filing date: 2019-04-08
Publication date: 2020-03-31
Anticipated expiration: 2029-04-08

Abstract

The utility model provides a resistant folding degree experiment appearance of printing paper MIT formula, include: the shell, the shell is the L type, and the left side is the detection zone, and the right side is for showing the operating area, and the left upper portion fixed mounting of shell has tension adjusting device, tension chuck is installed to tension adjusting device's lower extreme, the left lower part fixed mounting of shell has folding chuck subassembly, tension chuck with folding chuck subassembly corresponds from top to bottom, tension chuck with be equipped with the complementary unit who is used for following the straight-down printing paper between the folding chuck subassembly. The utility model discloses can reduce the distortion of test paper by a wide margin, its smooth-going, the whole test of assurance of at utmost.

Description

Printing paper MIT formula is able to bear or endure folding degree experiment appearance

Technical Field

The utility model relates to a printing test technical field, in particular to resistant folding degree experiment appearance of printing paper MIT formula.

Background

The folding strength is one of the basic mechanical properties of paper, and is defined as the number of double folds that can be tolerated before the sample breaks under specified conditions, and represents the ability of the paper to resist repeated folding, which is essential for paper bags and currency, and is also suitable for use in folding endurance tests for printing paper, drawing paper, wrapping paper, and the like.

The MIT paper folding strength tester is an instrument specially used for testing folding strength of paper and paper boards, and is the most typical one in paper fatigue tests, the test method is that two ends of a test piece are fixed on an upper clamp and a lower clamp of the instrument to apply required load, so that the test piece bears certain tension, the lower clamp bends the test piece to the left and the right in a reciprocating mode under the condition that the test piece is vertical, the bending angle is 135 degrees until the test piece is broken, and automatic counting is performed.

But present paper is resistant to roll over degree testing arrangement, generally when fixing the paper between tension chuck and folding chuck, can not guarantee the smooth-going of paper, take place the distortion easily, will influence the test result like this, consequently the utility model discloses a resistant roll over degree experiment appearance of printing paper MIT formula has set up complementary unit between upper and lower chuck, can reduce the distortion of test paper by a wide margin, and furthest's assurance it is smooth-going, whole tests.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model aims to provide a resistant folding degree experiment appearance of printing paper MIT formula can reduce the distortion of test paper by a wide margin, and its smooth-going, the whole test of carrying on of at utmost assurance.

The utility model provides a technical scheme that above-mentioned technical problem adopted is: the utility model provides a resistant folding degree experiment appearance of printing paper MIT formula which characterized in that includes: the shell, the shell is the L type, and the left side is the detection zone, and the right side is for showing the operating area, and the left upper portion fixed mounting of shell has tension adjusting device, tension chuck is installed to tension adjusting device's lower extreme, the left lower part fixed mounting of shell has folding chuck subassembly, tension chuck with folding chuck subassembly corresponds from top to bottom, tension chuck with be equipped with the complementary unit who is used for following the straight-down printing paper between the folding chuck subassembly.

Further, tension adjusting device includes tension case, tension pole, tension support, tension scale, tension pointer, tension fastening screw, tension case fixed mounting is in on the shell, the center of tension case is equipped with the tension scale, the tension pole slides and installs in the tension case, tension pointer fixed mounting is in one side of tension pole for instruct the tension scale, stretch out on the top of tension pole the tension case with tension holds in the palm fixed connection, stretch out on the lower extreme of tension pole the tension case with the tension chuck is connected, one side swivelling joint of tension case tension fastening screw is used for fixing the tension pole.

Further, the tension chuck includes left tension chuck, right tension chuck, connecting rod, lock nut, adjusting screw, the connecting rod pass through lock nut with the lower extreme locking of tension pole is fixed, left side tension chuck and right tension chuck are located the both sides of connecting rod, and pass through adjusting screw with connecting rod fixed connection, a U type structure is constituteed to left side tension chuck and right tension chuck.

Further, folding chuck subassembly is including folding chuck, drive mechanism, arc guide rail, connecting piece, arc guide rail fixed mounting be in on the shell, and be located under the tension case, drive mechanism installs the inside of shell, folding chuck slidable mounting be in on the arc guide rail, folding chuck with through connecting piece fixed connection between the drive mechanism, the connecting piece slides between the guide rail.

Further, drive mechanism includes rotating electrical machines, carousel, the connecting piece includes first fixed block, second fixed block, connecting block, the motor shaft fixed connection of rotating electrical machines the carousel, first fixed block fixed mounting is on the edge of carousel, first fixed block passes through the connecting block is connected the second fixed block, folding chuck fixed mounting is in on the second fixed block, the connecting block slide in between the guide rail.

Further, the radius of the turntable is the same as that of the guide rail, and the center of the turntable is located on one axis.

Further, folding chuck includes folding chuck in a left side and the folding chuck in the right side, slider, adjusting bolt, folding chuck in a left side and the folding chuck in the right side are the fan-shaped structure of symmetry respectively, folding chuck in a left side and the folding chuck fixed mounting in the right side are in on the second fixed block, there is the space that is used for passing printing paper between folding chuck in a left side and the folding chuck in the right side, one side that the folding chuck in the right side is close to the space is equipped with the spout, be equipped with the slider in the spout, adjusting bolt passes the folding chuck in the right side inside and spout with slider fixed connection.

Further, the display operation area adopts a touch display screen.

Furthermore, the auxiliary mechanism comprises a clamping block and a first air cylinder, a clamping groove is formed in the center of the clamping block, the clamping groove and the central line of the tension chuck are on the same straight line, an opening used for the clamping block to move back and forth is longitudinally formed in the shell, the back of the clamping block is fixedly connected with the first air cylinder, and the first air cylinder is fixedly installed in the shell.

Further, complementary unit includes that second cylinder, left side press from both sides tight frame, right side press from both sides tight frame, second cylinder fixed mounting be in the shell, a left side press from both sides tight frame and right side press from both sides tight frame by second cylinder drive horizontal slip sets up the shell outside, be equipped with on the shell and be used for a left side press from both sides tight frame and right side press from both sides the gliding spout of going up of tight frame and lower chute, the upper and lower both ends that press from both sides tight frame and right side respectively fixed mounting have the sliding ball, sliding ball slidable mounting be in go up spout and lower chute.

The utility model has the advantages that: the utility model discloses a set up complementary unit between tension chuck and folding chuck, carry out a direction and fixed effect to the paper sample that awaits measuring, press from both sides tightly to the both sides of sample or back one side to prevent taking place the distortion when folding chuck is fixed.

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 technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a first embodiment of a MIT-type folding endurance tester for printing paper according to the present invention;

fig. 2 is a schematic diagram of an auxiliary mechanism of a first embodiment of the MIT-type folding endurance tester for printing paper according to the present invention;

fig. 3 is a schematic diagram of the folding clip assembly of the MIT-type folding endurance tester for printing paper of the present invention;

fig. 4 is a schematic view of a folding chuck of the MIT-type folding endurance tester for printing paper of the present invention;

fig. 5 is a schematic structural diagram of a second embodiment of the MIT-type folding endurance tester for printing paper according to the present invention;

fig. 6 is a schematic diagram of an auxiliary mechanism of a second embodiment of the MIT-type folding endurance tester for printing paper of the present invention.

Wherein: 1. a housing; 2. a tension box; 3. a tension bar; 4. a tension bracket; 5. a tension lock screw; 6. a tension scale; 7. locking the nut; 8. a connecting rod; 9. a tension chuck; 10. adjusting the screw rod; 11. a clamping block; 12. an arc-shaped guide rail; 13. folding the chuck; 14. a touch display screen; 15. an upper chute; 16. a lower chute; 17. a first clamping frame; 18. a second clamping frame; 19. a second fixed block; 20. connecting blocks; 21. A first fixed block; 22. a turntable; 23. a motor shaft; 24. a rotating electric machine; 25. a first cylinder; 26. A second cylinder; 27. a sliding ball; 1301. a left folding collet; 1302. a right folding collet; 1303. a slider; 1304. a chute; 1305. and adjusting the bolt.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The first embodiment is as follows: as shown in fig. 1 to 4, an MIT-type folding endurance tester for printing paper is characterized by comprising: shell 1, shell 1 is the L type, and the left side is the detection zone, and the right side is for showing the operating area, and 1 left upper portion fixed mounting of shell has tension adjusting device, tension chuck 9 is installed to tension adjusting device's lower extreme, 1 left lower part fixed mounting of shell has folding chuck 13 subassembly, tension chuck 9 with it corresponds from top to bottom to fold chuck 13 subassembly, tension chuck 9 with be equipped with the complementary unit who is used for following the straight printing paper between the folding chuck 13 subassembly.

Further, tension adjusting device includes tension case 2, tension pole 3, tension holds in the palm 4, tension scale 6, tension pointer, tension fastening screw, 2 fixed mounting of tension case are in on the shell 1, the center of tension case 2 is equipped with tension scale 6, tension pole 3 slides and installs in tension case 2, tension pointer fixed mounting be in one side of tension pole 3 for instruct tension scale 6, stretch out on the top of tension pole 3 tension case 2 with 4 fixed connection are held in the palm to tension, stretch out the lower extreme of tension pole 3 tension case 2 with tension chuck 9 is connected, one side swivelling joint of tension case 2 tension fastening screw is used for fixing tension pole 3.

Further, tension chuck 9 includes left tension chuck 9, right tension chuck 9, connecting rod 8, lock nut, adjusting screw 10, connecting rod 8 pass through lock nut with tension rod 3's lower extreme locking is fixed, left tension chuck 9 and right tension chuck 9 are located connecting rod 8's both sides, and pass through adjusting screw 10 with connecting rod 8 fixed connection, a U type structure is constituteed to left tension chuck 9 and right tension chuck 9.

Further, folding chuck 13 subassembly is including folding chuck 13, drive mechanism, arc guide rail 12, connecting piece, arc guide rail 12 fixed mounting be in on the shell 1, and be located under tension case 2, drive mechanism installs the inside of shell 1, folding chuck 13 slidable mounting be in on the arc guide rail 12, folding chuck 13 with pass through connecting piece fixed connection between the drive mechanism, the connecting piece slides between the guide rail.

Further, drive mechanism includes rotating electrical machines 24, carousel 22, the connecting piece includes first fixed block 21, second fixed block 19, connecting block 20, motor shaft 23 fixed connection of rotating electrical machines 24 carousel 22, first fixed block 21 fixed mounting is on the edge of carousel 22, first fixed block 21 passes through connecting block 20 connects second fixed block 19, folding chuck 13 fixed mounting be in on the second fixed block 19, connecting block 20 slide in between the guide rail.

Further, the radius of the turntable 22 is the same as that of the guide rail, and the center thereof is located on one axis. The rotating electrical machines 24 adopt positive and negative rotation motors, can rotate positively and reversely, the rotatory carousel 22 that drives through the motor is rotatory, and then it is rotatory to drive second fixed block 19, second fixed block 19 drives first fixed block 21 at the circular guide internal rotation, and then folding about the folding joint drive printing paper has just been realized, wherein, for better control rotating electrical machines 24's positive and negative rotation, can install a spacing sensor respectively at the left and right ends of circular guide, when connecting block 20 moves to spacing sensor's position, spacing sensor sends signal to the controller of this experiment appearance, the controller then sends executive signal for rotating electrical machines 24, in order to realize its corotation and reversal, preferably, 52 singlechips are chooseed for use to the controller.

Further, the folding collet 13 includes a left folding collet 130113 and a right folding collet 130213, a slider 1303, and an adjusting bolt 1305, where the left folding collet 130113 and the right folding collet 130213 are respectively in a symmetrical fan-shaped structure, the left folding collet 130113 and the right folding collet 130213 are fixedly mounted on the second fixing block 19, a gap for passing through printing paper is provided between the left folding collet 130113 and the right folding collet 130213, a sliding slot 1304 is provided on one side of the right folding collet 130213 near the gap, a slider 1303 is provided in the sliding slot 1304, and the adjusting bolt 1305 passes through the inside of the right folding collet 130213 and the sliding slot 1304 is fixedly connected with the slider 1303. When the printing paper is sandwiched between the left folding head and the right folding head, the distance between the slider 1303 and the left folding jaw 130113 is adjusted by adjusting the adjusting bolt 1305 to clamp the printing paper.

Further, the display operation area adopts a touch display screen 14.

Further, the auxiliary mechanism comprises a clamping block 11 and a first air cylinder 25, a clamping groove is formed in the center of the clamping block 11, the clamping groove and the central line of the tension chuck 9 are on the same straight line, an opening for the clamping block 11 to move back and forth is longitudinally formed in the shell 1, the back of the clamping block 11 is fixedly connected with the first air cylinder 25, and the first air cylinder 25 is fixedly installed in the shell 1. The depth and width of the clamping groove can be selected from clamping blocks 11 of different types according to the size of the printing paper. After the sample is fixed by the tension chuck 9, the clamping block 11 moves forward under the driving of the first cylinder 25, the operator can also drag the lower side of the sample slightly to ensure the sample to be flat, then the inner side of the sample is clamped into the clamping groove, and then the folding chuck 13 is fixed, so that the sample can be prevented from being twisted when the folding chuck 13 fixes the sample. Such an auxiliary mechanism is suitable for small or narrow samples.

The difference between the second embodiment and the first embodiment is that, as shown in fig. 5 and fig. 6, the auxiliary mechanism includes a second cylinder 26, a left clamping frame and a right clamping frame, the second cylinder 26 is fixedly mounted in the housing 1, the left clamping frame and the right clamping frame are driven by the second cylinder 26 to slide left and right in the housing 1, an upper chute 130415 and a lower chute 130416 are provided on the housing 1, the upper and lower ends of the left clamping frame and the right clamping frame are respectively fixedly mounted with a sliding ball 27, and the sliding ball 27 is slidably mounted in the upper chute 130415 and the lower chute 130416. After the sample is fixed by tension chuck 9, the left side presss from both sides tight frame and the right side presss from both sides tight frame and moves to the centre under the drive of second cylinder 26 respectively, and the staff also can drag the sample downside a little, guarantees it and levels, then the left side presss from both sides tight frame and the right side presss from both sides tight sample, then carries out folding chuck 13 fixed, just so can avoid folding chuck 13 when fixed sample, and the sample takes place the distortion. This configuration is suitable for larger or wider samples.

The working mode is 1, turning on a power switch, and electrifying and preheating for 30 min.

2. Sampling 3-4 samples in the direction perpendicular to the paper pattern by using a paper extractor;

3. clamping a sample: the tension bracket 4 is pressed down, so that a tension pointer of the tension rod 3 indicates a scale mark of 9.8N of the tension scale 6, a tension fastening screw is screwed in, a sample is clamped between the tension chuck 9 and the folding chuck 13, the tension chuck 9 is fixed firstly, the auxiliary mechanism is adjusted, the sample is smooth and vertical, is not folded or twisted, and then the folding chuck 13 is fixed.

4. And then loosening the fastening screw of the tension rod 3, pressing the tension support 4, checking whether the tension pointer returns to 9.8N, and if so, testing.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a resistant folding degree experiment appearance of printing paper MIT formula which characterized in that includes: the shell, the shell is the L type, and the left side is the detection zone, and the right side is for showing the operating area, and the left upper portion fixed mounting of shell has tension adjusting device, tension chuck is installed to tension adjusting device's lower extreme, the left lower part fixed mounting of shell has folding chuck subassembly, tension chuck with folding chuck subassembly corresponds from top to bottom, tension chuck with be equipped with the complementary unit who is used for following the straight-down printing paper between the folding chuck subassembly.

2. The MIT-type folding endurance tester for printing paper according to claim 1, wherein the tension adjusting device comprises a tension box, a tension rod, a tension bracket, a tension scale, a tension pointer, and a tension fastening screw, the tension box is fixedly mounted on the housing, the tension scale is disposed at the center of the tension box, the tension rod is slidably mounted in the tension box, the tension pointer is fixedly mounted at one side of the tension rod for indicating the tension scale, the top end of the tension rod extends out of the tension box and is fixedly connected with the tension bracket, the lower end of the tension rod extends out of the tension box and is connected with the tension chuck, and one side of the tension box is rotatably connected with the tension fastening screw for fixing the tension rod.

3. The MIT-type folding endurance tester for printing paper according to claim 2, wherein the tension chuck comprises a left tension chuck, a right tension chuck, a connecting rod, a lock nut, and an adjusting screw, the connecting rod is locked and fixed to the lower end of the tension rod by the lock nut, the left tension chuck and the right tension chuck are located at two sides of the connecting rod and are fixedly connected to the connecting rod by the adjusting screw, and the left tension chuck and the right tension chuck form a U-shaped structure.

4. The MIT-type folding endurance tester for printing paper according to claim 2, wherein the folding chuck assembly comprises a folding chuck, a transmission mechanism, an arc-shaped guide rail and a connecting member, the arc-shaped guide rail is fixedly mounted on the housing and is located right below the tension box, the transmission mechanism is mounted inside the housing, the folding chuck is slidably mounted on the arc-shaped guide rail, the folding chuck and the transmission mechanism are fixedly connected through the connecting member, and the connecting member slides between the guide rails.

5. The MIT-type folding endurance tester for printing paper of claim 4, wherein the transmission mechanism comprises a rotating motor and a rotating disc, the connecting member comprises a first fixing block, a second fixing block and a connecting block, a motor shaft of the rotating motor is fixedly connected with the rotating disc, the first fixing block is fixedly installed on the edge of the rotating disc, the first fixing block is connected with the second fixing block through the connecting block, the folding chuck is fixedly installed on the second fixing block, and the connecting block slides between the guide rails.

6. The MIT-TYPE TOUGHNESS TESTER FOR PRINTED PAPER as claimed in claim 5, wherein the radius of the turntable is the same as the radius of the guideway, and the center thereof is located on one axis.

7. The MIT-type folding endurance tester for printing paper according to claim 6, wherein the folding collet comprises a left folding collet and a right folding collet, a sliding block and an adjusting bolt, the left folding collet and the right folding collet are respectively of a symmetrical fan-shaped structure, the left folding collet and the right folding collet are fixedly mounted on the second fixed block, a gap for passing printing paper is formed between the left folding collet and the right folding collet, a sliding groove is formed in one side of the right folding collet close to the gap, the sliding block is arranged in the sliding groove, and the adjusting bolt passes through the inside of the right folding collet and is fixedly connected with the sliding block through the sliding groove.

8. The MIT-type folding endurance testing apparatus for printing paper according to claim 1, wherein a touch display screen is adopted in the display operation area.

9. The MIT-type folding endurance tester for printing paper as claimed in claim 1, wherein the auxiliary mechanism comprises a clamping block and a first cylinder, a clamping groove is formed in the center of the clamping block, the clamping groove is aligned with the center line of the tension chuck, an opening for the clamping block to move back and forth is longitudinally formed in the housing, the back of the clamping block is fixedly connected with the first cylinder, and the first cylinder is fixedly installed in the housing.

10. The MIT-type folding endurance tester for printing paper according to claim 1, wherein the auxiliary mechanism comprises a second cylinder, a left clamping frame and a right clamping frame, the second cylinder is fixedly mounted in the housing, the left clamping frame and the right clamping frame are driven by the second cylinder to slide left and right outside the housing, the housing is provided with an upper sliding groove and a lower sliding groove for sliding the left clamping frame and the right clamping frame, the upper end and the lower end of the left clamping frame and the right clamping frame are respectively fixedly mounted with a sliding ball, and the sliding balls are slidably mounted in the upper sliding groove and the lower sliding groove.