CN117907195B - Steel cord glue seepage rate detection device - Google Patents
Steel cord glue seepage rate detection device Download PDFInfo
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- CN117907195B CN117907195B CN202410308756.6A CN202410308756A CN117907195B CN 117907195 B CN117907195 B CN 117907195B CN 202410308756 A CN202410308756 A CN 202410308756A CN 117907195 B CN117907195 B CN 117907195B
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- clamping plate
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- pressure
- sample block
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- 238000001514 detection method Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 17
- 239000010959 steel Substances 0.000 title claims abstract description 17
- 239000003292 glue Substances 0.000 title claims abstract description 12
- 238000012360 testing method Methods 0.000 claims abstract description 47
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000000670 limiting effect Effects 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 9
- 238000011179 visual inspection Methods 0.000 claims description 2
- 238000013040 rubber vulcanization Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to the technical field of steel cord detection, and discloses a steel cord glue seepage rate detection device, which comprises a first clamping plate and a second clamping plate, wherein the distance between the first clamping plate and the second clamping plate is adjustable, so as to clamp two ends of a sample block, the first clamping plate is communicated with an air inlet test tube, and the second clamping plate is communicated with an air outlet test tube through a sealing test assembly; the sealing test assembly comprises a pressure release valve, a telescopic air cylinder, a pressure transmitter, a valve and a linear telescopic component, wherein the air outlet end of the telescopic air cylinder is communicated with the air outlet of the second clamping plate through a communication cavity, and the air inlet end of the telescopic air cylinder is communicated with the air outlet test tube through the pressure transmitter and the valve. According to the invention, the telescopic inflator is instantly contracted by the linear telescopic component, the internal air pressure of the telescopic inflator is instantly lifted, and then the pressure relief valve is utilized to release air at the threshold value, so that whether the sealing between the clamping plate and the sample block is perfect can be known only by judging that the measured instant air pressure of the pressure transmitter is equivalent to the threshold value.
Description
Technical Field
The invention relates to the technical field of steel cord detection, in particular to a steel cord glue seepage rate detection device.
Background
The binding force of the steel cord and the rubber is an important index of the radial tire, and the high permeability is required for vulcanizing the cord and the rubber, so that the binding force of the steel cord and the rubber is improved. At present, a hydraulic bubble leakage method is adopted to detect the rubber leakage rate of a cord, mainly by introducing pressure water into a steel cord and a rubber vulcanization sample, and detecting the water leakage rate of the sample through a set detection time; however, the detection time is long, the detection of the seepage amount is complex, and the accuracy is low.
Therefore, in the prior art, a method of detecting by introducing gas into a sample is proposed to further solve the defect of the hydraulic bubble permeation method, and the method is specifically described in patent document CN 101762444B.
However, in the detection device in the above patent document, when detecting a sample block with a long length, the sample block with a long length is bent and deformed in a non-pressing direction when being pressed by a force (i.e., the sample block is bent and deformed to one side when being pressed to two ends), so that normal detection is affected, and the detection is difficult, and the working effect of the device is affected.
Therefore, in the prior art, a detection device is proposed for limiting the deformation direction of the product by the holding block, specifically referring to the patent document with publication number CN116593374a, but the problem of the patent still exists: because the sealing strip of recess on the splint ages, damage and dislocation, or damage on sample block and the splint, or because the edge that is difficult to be observed by the human eye of sample block is not aimed at with the recess of splint, lead to splint sealed inseparable when the centre gripping is in the one end of sample block to can't verify the seal, finally lead to detecting data's inaccuracy.
Disclosure of Invention
The application aims to solve the problem that tightness of the clamping plate and the sample block cannot be verified.
Therefore, the embodiment of the invention provides a steel cord glue seepage rate detection device, which comprises a first clamping plate and a second clamping plate with adjustable intervals, wherein the first clamping plate is communicated with an air inlet test tube, and the second clamping plate is communicated with an air outlet test tube through a sealing test assembly;
The sealing test assembly comprises a pressure release valve, a telescopic air cylinder, a pressure transmitter, a valve and a linear telescopic component, wherein the air outlet end of the telescopic air cylinder is communicated with the air outlet of the second clamping plate through a communicating cavity, the air inlet end of the telescopic air cylinder is sequentially communicated with the air outlet test tube through the pressure transmitter, the valve, the linear telescopic component is used for driving the telescopic air cylinder to stretch, and the pressure release valve is arranged at the air outlet end of the telescopic air cylinder.
As a preferable scheme of the invention, the device further comprises a workbench, wherein a chute is arranged on the workbench, and the first clamping plate and the second clamping plate are both slidably arranged in the chute.
As a preferable scheme of the invention, the sliding chute penetrates through the workbench, a supporting leg is arranged at the bottom end of the workbench, a limiting groove parallel to the workbench is fixedly arranged on the supporting leg through a transverse plate, two sliding nut blocks are linearly and slidably arranged in the limiting groove, a servo motor is fixedly arranged on one side of the transverse plate, an output shaft of the servo motor is fixedly connected with a control screw rod through an axle coupler, the control screw rod is sleeved in the two sliding nut blocks, two sections of opposite threads are arranged on the mirror image of the control screw rod so as to be respectively in threaded connection with the two sliding nut blocks, and the two sliding nut blocks are respectively and fixedly connected with the first clamping plate and the second clamping plate.
As a preferable mode of the invention, a stopper for preventing deformation of the test block is slidably provided at the top end of the table.
As a preferable scheme of the invention, the limiter comprises a base which is arranged on the workbench in a linear sliding way, U-shaped limiting grooves are integrally formed on the base, one ends of 7-shaped folding plates are hinged to two sides of each U-shaped limiting groove, and the other ends of the 7-shaped folding plates can be folded to be spliced with the U-shaped limiting grooves to form a return groove.
As a preferable scheme of the invention, two sides of the base are provided with the hook springs, and two ends of each hook spring are respectively hooked on the 7-shaped folding plate and the base, so that the two 7-shaped folding plates are in an open state.
As a preferable scheme of the invention, pushing structures are further arranged on two sides of the base to respectively push the two 7-shaped folding plates to fold.
As a preferable scheme of the invention, the pushing structure is a telescopic cylinder, and the output end of the telescopic cylinder is in movable contact with the 7-shaped folding plate.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the telescopic inflator is instantly contracted by the linear telescopic component, the internal air pressure of the telescopic inflator is instantly lifted, and then the pressure relief valve is utilized to release air at a threshold value, so that only the fact that the measured instant air pressure of the pressure transmitter is equivalent to the threshold value is needed to be judged, and whether the sealing between the clamping plate and the sample block is perfect can be known;
secondly, the patent document with the application publication number CN116593374a limits the extrusion deformation of the sample block by the holding block, but the holding block is designed to be a square tube which is arranged on the surface of the sample block, once the square tube shape is matched with the shape of the rubber vulcanization sample, the friction resistance on the surface of the rubber vulcanization sample is relatively large and difficult to insert, and a gap is reserved between the square tube shape and the rubber vulcanization sample, so that the deformation limiting effect cannot be ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of the present invention at an angle;
FIG. 2 is a schematic view of the overall structure of another angle of the present invention;
Fig. 3 is a side view of the U-shaped restraining slot of the present invention.
In the figure: 1. a first clamping plate; 2. a second clamping plate; 3. an air inlet test tube; 4. a pressure release valve; 5. a telescopic inflator; 6. a pressure transmitter; 7. a valve; 8. a linear expansion member; 9. a test tube is discharged; 10. a work table; 11. a chute; 12. support legs; 13. a cross plate; 14. a limit groove; 15. a slip nut block; 16. a servo motor; 17. a control screw; 18. a base; 19. a U-shaped restriction groove; 20. a 7-shaped folding plate; 21. a hook spring; 22. a pushing structure; 23. and an air outlet.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured 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.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1-3, in order to test the air tightness of the clamping plates clamped at the end parts of the test block in a sealing way, the invention provides a steel cord glue seepage rate detection device, which comprises a first clamping plate 1 and a second clamping plate 2 with adjustable intervals, so as to clamp the two ends of the test block, wherein the first clamping plate 1 is communicated with an air inlet test tube 3, and the second clamping plate 2 is communicated with an air outlet test tube 9 through a sealing test assembly; the sealing test assembly comprises a pressure release valve 4, a telescopic air cylinder 5, a pressure transmitter 6, a valve 7 and a linear telescopic component 8, wherein the air outlet end of the telescopic air cylinder 5 is communicated with the air outlet 23 of the second clamping plate 2 through a communication cavity, the air inlet end of the telescopic air cylinder 5 is communicated with an air outlet test tube 9 sequentially through the pressure transmitter 6 and the valve 7, the linear telescopic component 8 is used for driving the telescopic air cylinder 5 to stretch and retract, and the pressure release valve 4 is arranged at the air outlet end of the telescopic air cylinder 5.
The working principle of the part is as follows:
Firstly, the first clamping plate 1 and the second clamping plate 2 are respectively opposite to two ends of a sample block, grooves which are matched with the ends of the sample block are arranged on the first clamping plate 1 and the second clamping plate 2 to realize sealing engagement, when the first clamping plate 1 and the second clamping plate 2 are firmly clamped at the two ends of the sample block under visual inspection of naked eyes, the air charging equipment is not opened, so that no air exists in the air inlet test tube 3 and the air outlet test tube 9, the valve 7 is closed, then a linear telescopic part 8 (equipment such as a telescopic cylinder and a linear motor can be used for pushing the telescopic air cylinder 5 to stretch, the telescopic air cylinder 5 is composed of a plurality of sleeves which are in sealing sliding connection, one end of the telescopic air cylinder 5 is sealed by the valve 7, the other end of the telescopic air cylinder 5 is connected with the air outlet 23 of the second clamping plate 2, if the second clamping plate 2 is well sealed and nested directly with the sample block at the moment, and the air needs a long time from the sample block to the other end of the sample block, and the linear telescopic part 8 is pushed to shrink at the moment, so that the air pressure in the telescopic air cylinder 5 is quickly increased until the air pressure exceeds the threshold value of the pressure release valve 4, and the air pressure in the telescopic air cylinder 5 is quickly contracted until the pressure measured by the pressure transmitter 6 is equivalent to the threshold value of the pressure valve 4.
When the pressure inside the telescopic inflator 5 measured by the pressure transmitter 6 is lower than the threshold value of the pressure release valve 4, the sealing strips of the grooves on the second clamping plate 2 are aged, damaged or misplaced, or the test block and the second clamping plate 2 are damaged, or the edges of the test block which are not easily observed by human eyes are not aligned with the grooves of the second clamping plate 2.
Similarly, the above-mentioned sealing test assembly may be disposed at one end of the air inlet test tube 3, and for simplicity of explanation, the sealing test assembly is not shown at one end of the air inlet test tube 3, and substantially both ends may be installed, or of course, one end may be selectively tested.
In the invention, the workbench 10 is also provided with a chute 11, and the first clamping plate 1 and the second clamping plate 2 are both slidably arranged in the chute 11. Thus, the first clamping plate 1 and the second clamping plate 2 are both arranged in the straight-line-shaped sliding groove 11 to slide, so that the first clamping plate and the second clamping plate can always slide coaxially, and the sliding stability and the opposite relation of the first clamping plate and the second clamping plate are maintained.
In the invention, a chute 11 penetrates through a workbench 10, a supporting leg 12 is arranged at the bottom end of the workbench 10, a limiting groove 14 parallel to the workbench 10 is fixedly arranged on the supporting leg 12 through a transverse plate 13, two sliding nut blocks 15 are linearly and slidingly arranged in the limiting groove 14, a servo motor 16 is fixedly arranged on one side of the transverse plate 13, an output shaft of the servo motor 16 is fixedly connected with a control screw 17 through an axle coupler, the control screw 17 is sleeved in the two sliding nut blocks 15, two sections of opposite threads are arranged on the control screw 17 in a mirror image mode so as to be respectively in threaded connection with the two sliding nut blocks 15, and the two sliding nut blocks 15 are respectively and fixedly connected with a first clamping plate 1 and a second clamping plate 2.
Like this, when servo motor 16 drive control screw 17 rotates, under the restriction of spacing groove 14, two slip nut pieces 15 of cover on control screw 17 can be with the rotation motion conversion of control screw 17 linear slip, its principle is similar to ball, because the screw thread on the control screw 17 is opposite, can make two slip nut pieces 15 be close to or the effect that keeps away from in step to realize the automatic centering to the sample piece, the benefit of automatic centering lies in: thus, the sample block is not fixed in advance, so that the sample block is prevented from being excessively extruded at one biased end and not tightly sealed at the other end when not placed at the central position.
In the present invention, a stopper for preventing deformation of the test block is slidably provided at the top end of the table 10. The limiter comprises a base 18 which is arranged on the workbench 10 in a linear sliding manner, a U-shaped limiting groove 19 is integrally formed on the base 18, one end of a 7-shaped folding plate 20 is hinged to two sides of the U-shaped limiting groove 19, and the other ends of the 7-shaped folding plates 20 can be folded to be spliced with the U-shaped limiting groove 19 to form a circular groove. Both sides of the base 18 are provided with hook springs 21, and both ends of the hook springs 21 are respectively hooked on the 7-shaped folding plates 20 and the base 18, so that the two 7-shaped folding plates 20 are in an open state. Pushing structures 22 are further provided on both sides of the base 18 to push the two "7" shaped folding plates 20 to fold respectively. The pushing structure 22 is a telescopic cylinder, and the output end of the telescopic cylinder is in movable contact with the 7-shaped folding plate 20.
In this way, the two 7-shaped folding plates 20 are pulled to two sides by the hook spring 21 in a normal state, so that the top ends of the 7-shaped folding plates 20 are opened to two sides, referring to the 7-shaped folding plates 20 state of fig. 3, in this state, the sample block can be easily put into the U-shaped limiting groove 19, and the two sides of the U-shaped limiting groove 19 can limit the left and right sides of the sample block, and the grasping of the two sides of the sample block can not be influenced, at this time, after the sample block is placed, the inner ends of the pushing structures 22 push the 7-shaped folding plates 20 to the inner sides, so that the two 7-shaped folding plates 20 are gradually folded.
Wherein the base 18 is slidably disposed on the chute 11 of the table 10 to ensure that the sample block is manually snapped into the U-shaped limiting groove 19 with its axis aligned with the axes of the two clamping plates, and then automatically centered on the table 10 by sliding of the base 18 for ease of handling and other testing.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the 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 scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (5)
1. The method for testing the air tightness of the clamping plate by using the steel cord glue seepage rate detection device is characterized in that the clamping plate is clamped at the end part of a sample block in a sealing way, the steel cord glue seepage rate detection device comprises a workbench (10), a first clamping plate (1) and a second clamping plate (2) with adjustable intervals, so as to clamp the two ends of the sample block, and the first clamping plate (1) is communicated with an air inlet test tube (3), and the second clamping plate (2) is communicated with an air outlet test tube (9) through a sealing test assembly;
The sealing test assembly comprises a pressure release valve (4), a telescopic air cylinder (5), a pressure transmitter (6), a valve (7) and a linear telescopic component (8), wherein the air outlet end of the telescopic air cylinder (5) is communicated with the air outlet (23) of the second clamping plate (2) through a communication cavity, the air inlet end of the telescopic air cylinder (5) is sequentially communicated with the air outlet test tube (9) through the pressure transmitter (6) and the valve (7), the linear telescopic component (8) is used for driving the telescopic air cylinder (5) to stretch, and the pressure release valve (4) is arranged at the air outlet end of the telescopic air cylinder (5);
A limiter for preventing the test block from deforming is slidably arranged at the top end of the workbench (10);
The limiter comprises a base (18) which is arranged on the workbench (10) in a linear sliding manner, a U-shaped limiting groove (19) is integrally formed on the base (18), one end of a 7-shaped folding plate (20) is hinged to two sides of the U-shaped limiting groove (19), and the other ends of the 7-shaped folding plates (20) can be folded to be spliced with the U-shaped limiting groove (19) to form a circular groove;
Both sides of the base (18) are provided with hook springs (21), and both ends of the hook springs (21) are respectively hooked on the 7-shaped folding plates (20) and the base (18) so that the two 7-shaped folding plates (20) are in an open state;
the air tightness testing method comprises the following steps:
The first clamping plate (1) and the second clamping plate (2) are respectively opposite to two ends of a sample block, grooves which are matched with the ends of the sample block are arranged on the first clamping plate (1) and the second clamping plate (2) to realize sealing engagement, the telescopic air cylinder is instantly telescopic through the linear telescopic part, the air pressure inside the telescopic air cylinder is instantly lifted, the phenomenon that a pressure relief valve is deflated at a threshold value is utilized to judge that the measured instant air pressure of a pressure transmitter is equivalent to the threshold value, and then whether the clamping plate is perfectly sealed with the sample block or not can be judged, under the visual inspection condition, when the first clamping plate (1) and the second clamping plate (2) are clamped at the two ends of the sample block, the air charging equipment is not opened, so that no air exists in the air inlet test tube (3) and the air outlet test tube (9), at the moment, the valve (7) is closed, the telescopic air cylinder (5) is pushed to be telescopic by the linear telescopic part (8), one end of the telescopic air cylinder (5) is composed of a plurality of sleeves which are in sliding connection in sealing mode, the other end of the telescopic air cylinder (5) is connected with the air outlet (23) of the second clamping plate (2), if the air pressure between the first clamping plate (1) and the sample block (2) is well sealed by the valve until the air pressure of the sample block is required to be rapidly increased until the air pressure between the two ends of the sample block and the sample block (4) is well sealed by the sample block, at the moment, the internal air pressure of the telescopic inflator (5) measured by the pressure transmitter (6) is equivalent to the threshold value of the pressure relief valve (4);
When the internal air pressure of the telescopic air cylinder (5) measured by the pressure transmitter (6) is lower than the threshold value of the pressure relief valve (4), the situation that the sealing strip of the groove on the second clamping plate (2) is aged, damaged or misplaced exists, or the situation that the test block and the second clamping plate (2) are damaged exists, or the situation that one side edge of the test block is not aligned with the groove of the second clamping plate (2) exists.
2. The method for testing the air tightness of the clamping plates by using the steel cord glue seepage rate detection device according to claim 1, wherein a sliding groove (11) is arranged on the workbench (10), and the first clamping plate (1) and the second clamping plate (2) are both slidably arranged in the sliding groove (11).
3. The method for testing the air tightness of the clamping plate by using the steel cord glue seepage rate detection device according to claim 2, wherein the sliding groove (11) penetrates through the workbench (10), a supporting leg (12) is arranged at the bottom end of the workbench (10), a limiting groove (14) parallel to the workbench (10) is fixedly arranged on the supporting leg (12) through a transverse plate (13), two sliding nut blocks (15) are linearly and slidingly arranged in the limiting groove (14), a servo motor (16) is fixedly arranged on one side of the transverse plate (13), a control screw (17) is fixedly connected to an output shaft of the servo motor (16) through an axle coupler, the control screw (17) is sleeved in the two sliding nut blocks (15), two sections of opposite threads are arranged on the mirror image of the control screw (17) to be respectively in threaded connection with the two sliding nut blocks (15), and the two sliding nut blocks (15) are fixedly connected with the first clamping plate (1) and the second clamping plate (2) respectively.
4. The method for testing the air tightness of the clamping plate by using the steel cord glue seepage rate detection device according to claim 1, wherein pushing structures (22) are further arranged on two sides of the base (18) so as to push the two 7-shaped folding plates (20) to be folded respectively.
5. The method for testing the air tightness of the clamping plate by using the steel cord glue seepage rate detection device according to claim 4, wherein the pushing structure (22) is a telescopic cylinder, and the output end of the telescopic cylinder is in movable contact with the 7-shaped folding plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410308756.6A CN117907195B (en) | 2024-03-19 | 2024-03-19 | Steel cord glue seepage rate detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410308756.6A CN117907195B (en) | 2024-03-19 | 2024-03-19 | Steel cord glue seepage rate detection device |
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| Publication Number | Publication Date |
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| CN117907195A CN117907195A (en) | 2024-04-19 |
| CN117907195B true CN117907195B (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202410308756.6A Active CN117907195B (en) | 2024-03-19 | 2024-03-19 | Steel cord glue seepage rate detection device |
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| Country | Link |
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| CN (1) | CN117907195B (en) |
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| Publication number | Publication date |
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| CN117907195A (en) | 2024-04-19 |
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