CN212275468U - Plastic bottle negative pressure deformation strength detection device - Google Patents
Plastic bottle negative pressure deformation strength detection device Download PDFInfo
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- CN212275468U CN212275468U CN202021936397.2U CN202021936397U CN212275468U CN 212275468 U CN212275468 U CN 212275468U CN 202021936397 U CN202021936397 U CN 202021936397U CN 212275468 U CN212275468 U CN 212275468U
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Abstract
The utility model provides an anti negative pressure deformation strength detection device of plastic bottle, includes negative pressure vacuum pump, pressure control valve, master pressure table, pressure regulating controller, the joint of bleeding of connecting on the negative pressure gas circuit, and the pressure regulating controller still includes a plurality of bottle lids that are used for installing on corresponding plastic bottle, every bottle lid top all sealed be fixed with the connector of bleeding that can dismantle the connection of bleeding connects, the pressure regulating controller includes accurate vacuum output air-vent valve, pressure locking switch, accurate digital display manometer. The utility model discloses an appear for the intensity of body can be explained perfectly to the test data, and convenient operation, greatly reduced labour cost, it is various to have solved the bottle type simultaneously, and the inconvenient problem of measurement that a great deal of factors such as volume, appearance lead to has reduced the measurement degree of difficulty.
Description
Technical Field
The utility model relates to an anti negative pressure deformation strength detection device of plastic bottle.
Background
Over the years, bottle collapse (poor barrier removal) frequently occurs in market feedback plastic rigid packaging products, particularly in a plurality of non-barrier demand markets, and the frequent occurrence of such complaints often brings inconvenience to quality control and product measurement work. What the client pursues is a quantitative numerical value and method that can specify the bottle support strength or hardness to obtain the psychological expectation or quantitative standard of the bottle's resistance to deformation.
At present, the strength of the indirect constant container is usually measured by adopting a wall thickness measuring mode in the field, but a direct quantitative index for resisting the internal shriveling bottle cannot be formed; wall thickness measurements also fail to verify the overall or local resistance to deformation of the container; in the detection and evaluation methods of the related hard plastic packaging containers at home and abroad, a clear method for testing the strength of the anti-shrivelled bottle and a sound instrument are not described in all directions.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an anti negative pressure deformation strength detection device of plastic bottle.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides an anti negative pressure deformation strength detection device of plastic bottle, includes negative pressure vacuum pump, pressure control valve, master pressure table, pressure regulating controller, the joint of bleeding of connecting on the negative pressure gas circuit, and the pressure regulating controller still includes a plurality of bottle lids that are used for installing on corresponding plastic bottle, every bottle lid top all sealed be fixed with the connector of bleeding that can dismantle the connection of bleeding connects, the pressure regulating controller includes accurate vacuum output air-vent valve, pressure locking switch, accurate digital display manometer.
In some embodiments, the pressure regulating control machine further comprises a precision pointer pressure gauge.
In some embodiments, the negative pressure vacuum pump, the pressure control valve, the master pressure gauge, the pressure regulating controller, and the air extraction joint are connected in sequence.
The scope of the present invention is not limited to the technical solutions formed by specific combinations of the above technical features, and other technical solutions formed by arbitrary combinations of the above technical features or equivalent features should be covered. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present application are mutually replaced to form the technical solution.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model discloses an appear for the intensity of body can be explained perfectly to test data, and convenient operation, greatly reduced labour cost, it is various to have solved the bottle type, and the inconvenient problem of measurement that a great deal of factors such as volume, appearance lead to has reduced the measurement degree of difficulty, and the negative pressure deformation intensity that the plastic bottle was tested through the constant speed pressure method or constant voltage time method to the evacuation of the bottle body to usable complete sets of equipment simultaneously.
Drawings
FIG. 1 is a structural diagram of a device for detecting the negative pressure deformation resistance of a plastic bottle;
FIG. 2 is a flow chart of a method for detecting negative pressure deformation strength of a plastic bottle;
wherein: 1. a negative pressure vacuum pump; 2. a pressure control valve; 3. a total pressure gauge; 4. a voltage regulation controller; 41. a pressure regulating valve.
Detailed Description
As shown in fig. 2, the present embodiment is a method for detecting negative pressure deformation resistance strength of a plastic bottle, and the method includes the following specific steps:
and 4, obtaining the pressure value of the plastic bottle at the moment of complete bottle shrinkage or the tolerance time of the plastic bottle at the moment of complete bottle shrinkage, namely the negative pressure deformation value of the plastic bottle.
The embodiment introduces a constant temperature measurement method, eliminates the change of hardness strength of plastic products influenced by temperature, eliminates the influence of external factors on the stability of measurement results, simultaneously puts the products into a 40-50 oven, simulates the high temperature state in summer and the actual temperature state of ocean container transportation, tests the deformation resistance strength of the products, provides a set of method and standard for evaluating the deformation resistance strength of the products by using negative pressure strength, and provides a set of quantitative strength standard with strong referential property; the plastic bottle negative pressure deformation strength detection device is used for testing the negative pressure deformation strength of the plastic bottle by vacuumizing the bottle body through a constant-speed pressure method or a constant-pressure time method, and the operation is simple and convenient; the sealing device connected with the bottle sealing cover is utilized, so that the applicability is more convenient, the product applicability is wider, the influence of the size of the bottle body is avoided, and the test is more convenient; when the test product deforms, the deformation change is obvious, the test result is easier to observe and obtain, and the defect that the deformation is difficult to observe in the traditional in-bottle positive pressure test method is overcome.
In this embodiment, the steps 2 to 4 need to be completed within three minutes, so that the temperature change of the bottle body is not large, the influence of the temperature change on the test is eliminated, and the stability of the test data is ensured. Typically, most plastic bottles complete the test method in less than two minutes.
And (3) before the step (1), after the plastic bottle is manufactured and formed in equipment, taking out the plastic bottle and cooling the plastic bottle for more than 30 minutes at normal temperature, so that the plastic bottle is ensured to be in a normal temperature state, and the plastic bottle is prevented from being influenced by external factors.
In the process of recording the pressure value at the moment when the plastic bottle is completely shriveled, uniformly adjusting the pressure regulating valve at a speed of 0.04 MPa/min-0.06 MPa/min; at the complete shrivelled bottle in-process of tolerance time in the twinkling of an eye of record plastic bottle, adjust the air-vent valve to 0.05MPa or 0.09 MPa's negative pressure value, the stability of data has been guaranteed to the fixed even slow governing speed, prevents because the data error that the speed leads to at the excessive speed, and stable negative pressure value also makes tolerance time more stable simultaneously, and data are more accurate.
The detection method in this embodiment uses a device for detecting the negative pressure deformation resistance of the plastic bottle as shown in fig. 1, which comprises a negative pressure vacuum pump 1, a pressure control valve 2, a total pressure meter 3, a pressure regulating control machine 4 and an air extraction joint 5 which are sequentially connected to a negative pressure air path, wherein the pressure regulating control machine 4 further comprises a plurality of bottle caps suitable for being installed on the corresponding plastic bottle, the top of each bottle cap is provided with an air extraction joint which is detachably connected with the air extraction joint, the air extraction joint is convenient to extract air from the plastic bottle and simultaneously prevents air leakage, and the structure is widely applied to products such as tires and the like and is not repeated herein.
As shown in fig. 2, the pressure regulating controller 4 includes a precise vacuum output pressure regulating valve 41, a pressure locking switch, and a precise digital display pressure gauge, and a precise pointer pressure gauge is further provided on the pressure regulating controller in this embodiment, and in the actual detection process, the accuracy of the test data is ensured by the way that the pressure indicated by the precise digital display pressure gauge and the pressure indicated by the precise pointer pressure gauge are compared together by the detection personnel.
The precise vacuum output pressure regulating valve ensures the linear requirement of negative pressure output.
The pressure locking switch of the pressure regulating controller and the precise vacuum output pressure regulating valve are used together, so that the problem that the deformation reference in a fixed pressure state cannot be obtained is solved.
Precision gage disk gauges provide convenience in pressure test calibration and calibration of the instrument itself.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (3)
1. The utility model provides an anti negative pressure deformation strength detection device of plastic bottle which characterized in that: including connecting negative pressure vacuum pump, pressure control valve, total manometer, pressure regulating controller, the joint of bleeding on the negative pressure gas circuit, the pressure regulating controller still includes a plurality of bottle lids that are used for installing on corresponding plastic bottle, every bottle lid top all sealed be fixed with the connector of bleeding that can dismantle the connection is connected to bleeding, the pressure regulating controller includes accurate vacuum output air-vent valve, pressure locking switch, accurate digital display manometer.
2. The plastic bottle negative pressure deformation strength detection device according to claim 1, characterized in that: the pressure regulating controller also comprises a precision pointer pressure gauge.
3. The plastic bottle negative pressure deformation strength detection device according to claim 1, characterized in that: the negative pressure vacuum pump, the pressure control valve, the total pressure gauge, the pressure regulating control machine and the air exhaust connector are connected in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021936397.2U CN212275468U (en) | 2020-09-07 | 2020-09-07 | Plastic bottle negative pressure deformation strength detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021936397.2U CN212275468U (en) | 2020-09-07 | 2020-09-07 | Plastic bottle negative pressure deformation strength detection device |
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| CN212275468U true CN212275468U (en) | 2021-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021936397.2U Active CN212275468U (en) | 2020-09-07 | 2020-09-07 | Plastic bottle negative pressure deformation strength detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912719A (en) * | 2020-09-07 | 2020-11-10 | 江苏龙灯博士摩包装材料有限公司 | Method and device for detecting negative pressure deformation resistance strength of plastic bottle |
-
2020
- 2020-09-07 CN CN202021936397.2U patent/CN212275468U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111912719A (en) * | 2020-09-07 | 2020-11-10 | 江苏龙灯博士摩包装材料有限公司 | Method and device for detecting negative pressure deformation resistance strength of plastic bottle |
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