CN109001107B - Device for detecting bonding strength of corrugated paper - Google Patents
Device for detecting bonding strength of corrugated paper Download PDFInfo
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- CN109001107B CN109001107B CN201810854037.9A CN201810854037A CN109001107B CN 109001107 B CN109001107 B CN 109001107B CN 201810854037 A CN201810854037 A CN 201810854037A CN 109001107 B CN109001107 B CN 109001107B
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- contact pin
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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Abstract
The invention discloses a device for detecting the bonding strength of a corrugated board, which comprises an upper part and a lower part, wherein the lower part at least comprises a lower contact pin fixing base 1, a pressing plate 2, a lower contact pin 3, a connecting screw rod 4, a lower supporting piece 5 and a connecting nut 6; the upper part at least comprises an upper pin 7, a slide block 8, an upper pin fixing base 9, a supporting slide block 10 and an upper supporting piece 11. The device for the bonding strength is applicable to the detection of the bonding strength of various corrugated boards by a flexible method of firstly inserting the corrugated boards by the contact pins and then fixing the corrugated boards, can reduce the loss of the contact pins and save fine adjustment time, has wide application range, is convenient to detach and replace the contact pins, and reduces the maintenance and use cost.
Description
Technical Field
The invention relates to an auxiliary tool for detecting the adhesive strength of corrugated boards, in particular to a device for detecting the adhesive strength of corrugated boards.
Background
The bonding strength of the corrugated board is an important index for detecting the physical property strength of the corrugated case, and reflects the bonding fastness between the paper surface and the corrugated base paper of the corrugated board with a certain length. Whether the adhesion is tight and firm and whether the strength meets the requirements can directly influence the use effect of the corrugated board. If the paperboards are not firmly bonded, the strength of the produced corrugated case is insufficient, the layers are easy to peel in the using process, the shock resistance and the compressive strength of the finished product carton are directly reduced, the finished product carton is easy to damage in the stacking and transporting processes, and the economic loss is caused. The current national standard for corrugated board makes a clear specification on the adhesive strength of A, C, B, E flutes.
The existing method for effectively measuring the bonding strength of the corrugated board is GB/T6548-; the method of testing the adhesive strength of corrugated board and the diameter of the pins for testing the corrugation of A, C, B, E are specified in this standard.
The adhesive strength test method procedures specified in the GB/T6548 + 2011 standard for adhesive strength test methods: a corrugated board sample of 100mm multiplied by 25mm is manufactured according to the standard, and a proper stripping frame is selected according to the flute shape. And adjusting the needle pitch of the contact pins according to the measured pitch of the sample, loading the sample into a stripping frame, and then placing the stripping frame at the central position of a lower pressing plate of the compression tester. And (5) pressing the stripping frame at a preset speed until the separation position between the experimental layers is reached, and recording the maximum force value.
In the process of detecting items, a corrugated board adhesive strength test stand is required. GB/T6548 and 2011 < determination method of adhesive strength of corrugated board > stipulates that 10-30 samples need to be prepared for one corrugated board sample, namely 10-30 detections are respectively carried out, and the obtained average value of the samples is substituted into a formula: p ═ F/L, where: p-bond strength; f is the maximum force (average value of 10-30 times of values) required by sample separation; l is the total length of the sample (0.025 times the number of the pins) and the value obtained by the calculation is the bonding strength of the sample.
Chinese patent No. CN200810207823.6 discloses a peeling frame for detecting the adhesive strength of an E-shaped corrugated board and a manufacturing method thereof, the peeling frame comprises an L-shaped upper supporting member and an L-shaped lower supporting member, a contact pin is arranged on a side supporting plate of the supporting members, one end of the contact pin is embedded into a drill hole on the side supporting plate and fixed through a copper column with a shaft shoulder, and the diameter of the contact pin and the distance between the contact pins are respectively matched with the corrugation height and the corrugation hole distance of the E-shaped corrugated board. The invention also discloses a manufacturing method of the stripping frame for detecting the bonding strength of the E-shaped corrugated board. The peeling frame and the manufacturing method thereof are suitable for detecting the bonding strength of the E-shaped corrugated board by arranging the contact pin matched with the E-shaped corrugated board, not only can effectively ensure the strength and the deflection of the contact pin, but also can finely adjust the parallelism of the contact pin through the copper column. In addition, if the contact pin is bent and damaged, the copper column is only required to be punched out, and the damaged contact pin can be detached and replaced.
The defects in the invention are mainly as follows: firstly, because corrugated paper is affected by equipment and process of a specific manufacturer, the distance between corrugated holes is not uniform, sometimes, even the difference from the standard is larger, so that a contact pin is difficult to be correctly inserted into a corrugated paper sample; the pin is troublesome to disassemble when damaged, and the middle pin is difficult to knock out when damaged; after the pin inserting holes are used for a period of time, the pin inserting holes are easy to loosen and uneven in stress, and accuracy and precision are affected; and fourthly, the templates with different aperture sizes need to be replaced for different prismatic shapes, and more spare parts are troublesome to use.
In addition, market research shows that only E corrugated paper boards with different sizes in the current market have more than 11 types, the current corrugated paper bonding strength testing device cannot be flexibly used, the number of matched corrugated paper is large, a plurality of sets of peeling frames are needed, maintenance is troublesome, and the use is limited so that the detection requirements of products in the current market are difficult to meet. If the corrugated paper bonding strength testing device is used for bonding strength detection, only one set of the corrugated paper bonding strength testing device is needed, and the cost is greatly saved.
Disclosure of Invention
The invention aims to provide a device for detecting the bonding strength of corrugated paper, which is suitable for detecting the bonding strength of different types of corrugated paper boards. Aiming at the defects in the prior art, the invention improves the prior art, and overcomes the defects that the contact pin is difficult to be correctly inserted into the corrugated paper sample due to the uneven interval of the corrugated paper edge holes, the contact pin is troublesome to disassemble when damaged, the contact pin jack is easy to loosen and uneven in stress after being used for a period of time, the accuracy and precision are influenced, templates with different aperture sizes need to be replaced for different edge shapes, and a plurality of spare parts are troublesome to use.
In order to achieve the purpose, the invention adopts the following technical scheme: the device for detecting the bonding strength of the corrugated paper at least comprises an upper part and a lower part, wherein the lower part at least comprises a lower contact pin fixing base 1, a pressing plate 2, a lower contact pin 3, a connecting screw rod 4, a lower supporting piece 5 and a connecting nut 6; the upper part at least comprises an upper pin 7, a slide block 8, an upper pin fixing base 9, a supporting slide block 10 and an upper supporting piece 11.
The upper edge of a lower contact pin fixing base 1 is provided with a lower contact pin 3 and a pressing plate 2, the pressing plate 2 is arranged on the lower contact pin 3, the flat end of the lower contact pin 3 is placed on the lower contact pin fixing base 1, the other round end of the lower contact pin 3 is placed on a lower supporting piece 5, screw holes are formed in the lower contact pin fixing base 1 and the pressing plate 2, and a connecting screw rod 4 and a connecting nut 6 are connected through the screw holes and fix the lower contact pin 3.
Lower supporter 5 on support 3 one end of contact pin down have even little recess, make the contact pin 3 that passes the corrugated paper take and be difficult for sliding the production displacement on 5 little recesses of lower supporter. The lower supporting piece 5 and the upper supporting piece 11 are respectively provided with two positioning holes and fixed with the positioning columns on the lower pin fixing base 1 and the upper pin fixing base 9.
The lower pin fixing base 1 and the upper pin fixing base 9 are respectively provided with two raised positioning columns, and the positioning columns of the lower pin fixing base 1 and the upper pin fixing base 9 are respectively inserted into positioning holes in the lower supporting piece 5 and the upper supporting piece 11 for fixing during use.
The lower contact pin fixing base 1 is provided with a groove and a screw hole.
The section of one end of the lower contact pin 3 is rectangular, and the length of the rectangular section is 5-10 mm; one end of the upper pin 7 is provided with screw threads.
The lower contact pin fixing base 1, the pressing plate 2 and the lower contact pin 3 are fixed through a connecting screw rod 4 and a connecting nut 6; the sliding block 8 is provided with a screw hole, and the upper contact pin 7 and the sliding block 8 are fixedly connected through threads.
The upper pin fixing base 9 and the upper supporting piece 11 are provided with slide rail grooves which are respectively provided with a slide block 8 and a supporting slide block 10.
The diameter of the contact pin is 1mm, 2mm, 3mm and 3.5mm 4 types.
The contact pin is made of tool steel and has the hardness of 60-62 degrees.
The supporting slider 10 is provided with a groove for embedding the upper pin 7.
The device for detecting the bonding strength of the corrugated paper is characterized in that an upper part and a lower part jointly form a set.
The space between the lower contact pin 3 and the upper contact pin 7 is respectively matched with the ridge height and the ridge hole space of the corrugated board.
Preferably, the rectangular flat end section of the lower pin 3 has an aspect ratio larger than 3: 1.
Drawings
FIG. 1 is a schematic illustration of a corrugated paper bonding strength apparatus of the present invention; FIG. 2 is a schematic view of the lower portion of the corrugated paper bonding strength apparatus of the present invention; FIG. 3 is a schematic structural view of a lower support member 5 of the corrugated paper bonding strength device of the present invention; FIG. 4 is a bottom view of the lower pin fixing base 1 of the corrugated paper adhesive strength device of the present invention; FIG. 5 is a schematic structural view of a lower pin fixing base 1 of the corrugated paper adhesive strength device of the present invention; FIG. 6 is a schematic view of a corrugated paper bonding strength device press plate 2 of the present invention; FIG. 7 is a schematic view of a lower insert pin 3 of the corrugated paper adhesive strength device of the present invention; FIG. 8 is a schematic view of a connecting screw 4 of the corrugated paper bonding strength device of the present invention; FIG. 9 is a schematic view of a coupling nut 6 of the corrugated paper bonding strength device of the present invention; FIG. 10 is a schematic view of the upper portion of the corrugated paper bond strength unit of the present invention; FIG. 11 is a schematic view of a pin 7 of the corrugated paper adhesive strength device of the present invention; FIG. 12 is a schematic view of a slider 8 of the corrugated paper adhesive strength device of the present invention; FIG. 13 is a schematic view of a pin fixing base 9 of the corrugated paper adhesive strength device of the present invention; FIG. 14 is a schematic view of a support shoe 10 of the corrugated paper adhesive strength device of the present invention; fig. 15 is a schematic view of the support 11 of the corrugated paper adhesive strength device of the present invention; fig. 16 is an overall schematic view of the corrugated paper adhesive strength device supporting slider 10 and the upper supporting member 11 of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the drawings and the embodiment.
Embodiment 1 referring to fig. 1 to 16, the corrugated paper bonding strength device of the present invention includes a lower pin fixing base 1, a pressing plate 2, a lower pin 3, a connecting screw 4, a lower support member 5, a connecting nut 6, an upper pin 7, a slider 8, an upper pin fixing base 9, a support slider 10, and an upper support member 11.
In the embodiment, the E corrugated board is selected as an experimental sample to detect the bonding strength.
(1) Firstly, taking a sample with the size of 100 x 25 mm; (2) and taking down the contact pins 3 and the upper contact pins 7 according to the detection standard, wherein the diameters and the intervals of the contact pins are respectively matched with the ridge heights and the ridge hole intervals of the corrugated board. Because the corrugated height of the corrugated board E is very small, 4 types of sizes (the diameters of the pins are 1mm, 2mm, 3mm and 3.5mm) of the lower pin 3 and the upper pin 7 can be selected, the diameter of the pin is required to be matched with the corrugated height, and the pin of the device must ensure that the pin does not have plastic deformation after testing and does not break during testing. After repeated tests and calculation, the diameter of the contact pin is set to be 1 mm; (3) if the sample is a double-layer E corrugated board, assuming that the upper-layer E corrugated board is detected, the specific detection steps are as follows, firstly connecting an upper contact pin fixing base 9 and an upper supporting piece 11 through a positioning hole and a positioning column, pushing a supporting slide block 10 into a slide rail of the upper supporting piece 11, inserting an upper contact pin 7 into a lower edge hole of the upper-layer E corrugated board, then embedding one end of the upper contact pin 7 into a groove of the supporting slide block 10, pushing a slide block 8 into the slide rail of the upper contact pin fixing base 9 after placement is finished, aligning a threaded end of the upper contact pin 7 with a threaded hole on the slide block 8, and screwing the threaded hole into the; (4) connecting a lower contact pin fixing base 1 and a lower support piece 5 through a positioning hole and a positioning column, inserting a lower contact pin 3 into an upper edge hole of an upper layer E corrugated board, placing a flat end of the lower contact pin 3 on the lower contact pin fixing base 1, placing the other round end on the lower support piece 5, wherein screw holes are formed in the lower contact pin fixing base 1 and the pressing plate 2, and a connecting screw rod 4 and a connecting nut 6 are connected through the screw holes and are used for fixing the lower contact pin 3; the lower supporting piece 5 and the upper supporting piece 11 form a frame-shaped structure, then pressure is applied to the upper supporting piece 11 and the lower supporting piece 5 simultaneously, the upper and lower inserting pins on the upper supporting piece 11 and the lower supporting piece 5 do up-and-down relative motion, the upper and lower corrugated holes of the E-shaped corrugated board are enlarged until the corrugated paper and the paperboard are separated, and finally the upper inserting pin 7 and the lower inserting pin 3 are pulled out, so that the next test can be carried out. The test of each sample of corrugated cardboard needs 10 times, and after all tests are finished, the obtained average value of the samples is substituted into the formula: p ═ F/L, where: p-bond strength; f is the maximum force (average value of 10-12 times of values) required by sample separation; l is the total length of the sample (0.025 times the number of the pins) and the value obtained by the calculation is the bonding strength of the E-shaped corrugated board.
In conclusion, the corrugated paper bonding strength device structure is an auxiliary tool specially designed for detecting the bonding strength of all corrugated boards in the current market, not only has all the advantages of the existing testing device, but also has the advantages of adjustable and replaceable contact pins, easiness in adjustment, low use cost, long service life, convenience in use and maintenance and the like, so that the problems that the corrugated paper board bonding strength detecting device is difficult to use and maintain, the contact pins are easy to damage, the contact pins are time-consuming to adjust and the like are solved, and favorable support is provided for better monitoring of the quality of the corrugated paper boards and management work.
Example 2 the construction of the corrugated paper adhesive strength device was the same as in example 1 except that the diameter of the pin was 2 mm. In conclusion, the corrugated paper adhesive strength detection method can be better realized through the embodiment, and the requirement of corrugated paper adhesive strength detection is met.
It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above described embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (4)
1. A device for detecting the bonding strength of corrugated paper at least comprises an upper part and a lower part, wherein the lower part at least comprises a lower contact pin fixing base (1), a pressing plate (2), a lower contact pin (3), a connecting screw rod (4), a lower supporting piece (5) and a connecting nut (6); the upper part at least comprises an upper contact pin (7), a slide block (8), an upper contact pin fixing base (9), a supporting slide block (10) and an upper supporting piece (11);
the lower pin fixing base (1) is provided with a lower pin (3) and a pressing plate (2) at the upper side, the pressing plate (2) is arranged on the lower pin (3), the flat end of the lower pin (3) is placed on the lower pin fixing base (1), the other round end of the lower pin (3) is placed on a lower supporting piece (5), screw holes are formed in the lower pin fixing base (1) and the pressing plate (2), and a connecting screw rod (4) and a connecting nut (6) are connected through the screw holes and fix the lower pin (3);
one end of the lower support piece (5) supporting the lower contact pin (3) is provided with uniform small grooves, so that the lower contact pin (3) penetrating through the corrugated paper is overlapped on the small grooves of the lower support piece (5) and is not easy to slide to generate displacement;
the lower contact pin fixing base (1) is provided with a groove and a screw hole;
the sliding block (8) is provided with a screw hole, and the upper contact pin (7) and the sliding block (8) are fixedly connected through threads;
the upper pin fixing base (9) and the upper supporting piece (11) are provided with sliding rail grooves which are respectively provided with a sliding block (8) and a supporting sliding block (10).
2. The device for detecting the bonding strength of the corrugated paper as claimed in claim 1, wherein the lower pin fixing base (1) and the upper pin fixing base (9) are respectively provided with two raised positioning columns, and when in use, the positioning columns of the lower pin fixing base (1) and the upper pin fixing base (9) are respectively inserted into the positioning holes of the lower supporting member (5) and the upper supporting member (11) for fixing.
3. The device for detecting the bonding strength of the corrugated paper as claimed in claim 1, wherein the cross section of one end of the lower contact pin (3) is rectangular, and the length of the rectangular cross section is 5-10 mm; one end of the upper pin (7) is provided with screw threads.
4. The apparatus for testing the adhesive strength of corrugated paper as claimed in claim 1, wherein the apparatus for testing the adhesive strength of corrugated paper comprises an upper portion and a lower portion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810854037.9A CN109001107B (en) | 2018-07-30 | 2018-07-30 | Device for detecting bonding strength of corrugated paper |
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| CN201810854037.9A CN109001107B (en) | 2018-07-30 | 2018-07-30 | Device for detecting bonding strength of corrugated paper |
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| CN109001107A CN109001107A (en) | 2018-12-14 |
| CN109001107B true CN109001107B (en) | 2020-12-15 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110595997A (en) * | 2019-09-27 | 2019-12-20 | 广东中烟工业有限责任公司 | Adhesive strength detection device for soft cigarette package hardening cigarette case and evaluation method for adhesive performance of soft cigarette package hardening cigarette case |
| CN113075122B (en) * | 2021-03-23 | 2023-03-24 | 宁夏计量质量检验检测研究院 | Row needle for corrugated container board adhesive strength experiments |
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Effective date of registration: 20201125 Address after: No.9, Fengshan Third Road, Changlong Industrial Zone, Sijiu Town, Taishan City, Jiangmen City, Guangdong Province Applicant after: TAISHAN SHICHANG PAPER Co.,Ltd. Address before: 755000 the single floor of Meili Paper in Shapotou District, the Ningxia Hui Autonomous Region, China. Applicant before: Wang Zhongliang |
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Address after: No.9, Fengshan 3rd road, Changlong Industrial Zone, Sijiu Town, Taishan City, Jiangmen City, Guangdong Province 529200 Patentee after: Taishan Shichang Intelligent Technology Co.,Ltd. Address before: No.9, Fengshan 3rd road, Changlong Industrial Zone, Sijiu Town, Taishan City, Jiangmen City, Guangdong Province 529200 Patentee before: TAISHAN SHICHANG PAPER Co.,Ltd. |
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Denomination of invention: A device for detecting the adhesive strength of corrugated paper Effective date of registration: 20230703 Granted publication date: 20201215 Pledgee: Guangdong Taishan Rural Commercial Bank Co.,Ltd. Taicheng Branch Pledgor: Taishan Shichang Intelligent Technology Co.,Ltd. Registration number: Y2023980047195 |
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