Vacuum box for testing cosmetic bottles

Abstract

The utility model discloses a kind of vacuum boxes for cosmetic bottle testing, it is related to cosmetic packaging detection field.A kind of vacuum boxes for cosmetic bottle testing, including box, the box is composed of bottom plate and sealing cover, equidistant fixed connection has multiple rows of positioning slots on the bottom plate, sealing cover is fixedly connected with vacuumizing pipe, further include: sealing washer, it is set on the bottom plate, and located between the outside one circle of multiple positioning slots;Compared with the way that traditional only judges the sealing property by observing bubble through naked eye, the capacitive pressure sensor has good stability, fast response speed, high sensitivity and wide measurement range, can accurately measure the change of air pressure in bottle, even if the bottle leakage point is small, air pressure anomaly can also be accurately detected, effectively avoid the misjudgment caused by naked eye observation not in place or difficult to detect small leakage point, greatly improve the accuracy of cosmetic bottle sealing detection.

Description

Technical Field

[0001] This utility model belongs to the field of cosmetic packaging testing technology, specifically, it relates to a vacuum chamber for testing cosmetic bottles. Background Technology

[0002] In cosmetic manufacturing, the airtightness of cosmetic bottles is a key factor in ensuring the quality and shelf life of cosmetics. If the cosmetic bottle is not properly sealed, it can easily lead to leakage and deterioration of the cosmetics, which not only affects product quality and consumer experience, but may also cause safety issues.

[0003] Currently, the industry commonly uses the vacuum method to test the sealing performance of cosmetic bottles. This involves placing the cosmetic bottle in a vacuum chamber, evacuating it, and then observing whether there are any leaks (such as the formation of bubbles) to determine its sealing performance. However, in actual operation, this traditional testing method has several drawbacks. In actual production, each batch of cosmetic bottles usually requires a certain number of samples for testing, rather than just testing individual bottles. When there are many bottles to test, it is difficult to conduct a comprehensive and detailed inspection of all bottles by visual inspection alone. This can easily lead to some bottles being missed, resulting in missed detections. Furthermore, when the leakage point of a cosmetic bottle is extremely small, the resulting bubbles may be very small or even non-existent. It is difficult to accurately determine whether a bottle is leaking by visual inspection alone, thus affecting the accuracy of the test results. Therefore, this utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a vacuum chamber for testing cosmetic bottles that can overcome or at least partially solve the above problems.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows: a vacuum chamber for testing cosmetic bottles, including a chamber body, the chamber body being composed of a base plate and a sealing cover, the base plate being equidistantly connected to multiple rows of positioning grooves, and a vacuum tube being fixedly connected to the sealing cover. The chamber also includes: a sealing gasket, disposed on the base plate and located on the outer edge of the multiple rows of positioning grooves; a clamping assembly for tightly fitting the sealing cover and the base plate, mounted on the base plate; a fixing rod, equidistantly connected inside the sealing cover; a mounting rod, equidistantly fixedly connected to the fixing rod and located directly above the positioning grooves; and a pressure detector, fixedly mounted on the lower end of the mounting rod, the pressure detector being wirelessly connected to a controller.

[0006] Furthermore, the clamping assembly includes a support plate, a screw, and a pressure plate. The support plate is fixedly connected to the base plate, the screw is threadedly connected to the upper end of the support plate, and the pressure plate is rotatably connected to the lower end of the screw and located directly above the sealing cover.

[0007] To facilitate precise positioning of the sealing cover on the base plate, a positioning frame is fixedly connected to the base plate. When the sealing cover is placed on the base plate, the outer surface of the sealing cover is in contact with the inner wall of the positioning frame, and the positioning groove and the sealing gasket are both set inside the positioning frame.

[0008] To facilitate flexible position adjustment of the air pressure detector according to the height of the cosmetic bottle, the two ends of the fixing rod are further fixedly connected with first magnetic blocks. The first magnetic blocks slide against the inner wall of the sealing cover. A sliding groove is opened in the side wall of the sealing cover near the first magnetic block. A second magnetic block that magnetically attracts the first magnetic block is slidably connected in the sliding groove. Multiple second magnetic blocks located on the same side are fixedly connected by a lifting frame.

[0009] To further ensure the stability of the pressure sensor, the inner wall of the sealing cover and the groove wall are both rough surfaces.

[0010] To further ensure the stability of the barometric pressure detector, two limiting strips are symmetrically fixedly connected to both sides of the first magnetic block inside the sealing cover, and the first magnetic block slides against the limiting strips.

[0011] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: Compared with the traditional method of judging the sealing performance by observing bubbles with the naked eye, the capacitive pressure sensor has good stability, fast response speed, high sensitivity and wide measurement range. It can accurately measure the change of air pressure inside the bottle. Even if the leakage point of the bottle is small, it can accurately detect the abnormal air pressure, effectively avoid misjudgment caused by insufficient visual observation or difficulty in detecting small leakage points, and greatly improve the accuracy of cosmetic bottle sealing performance detection.

[0012] Furthermore, it can simultaneously test multiple cosmetic bottles placed in the positioning slots, solving the problem that some bottles may not be observed properly due to the large number of bottles in traditional sampling tests. It can perform comprehensive and accurate sealing tests on batches of cosmetic bottles, meeting the needs of cosmetic bottle quality testing in actual production.

[0013] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the base plate, positioning groove, positioning frame and sealing gasket of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the sealing cover in this utility model;

[0018] Figure 4 This is a cross-sectional view of a portion of the present invention.

[0019] In the diagram: 1. Box body; 101. Base plate; 1011. Positioning groove; 1012. Sealing gasket; 1013. Positioning frame; 102. Sealing cover; 1021. Vacuum tube; 1022. Fixing rod; 1023. Mounting rod; 1024. Air pressure detector; 1025. First magnetic block; 1026. Slide groove; 1027. Second magnetic block; 1028. Lifting frame; 1029. Limiting strip; 2. Support plate; 201. Screw; 202. Pressure plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0021] Example 1

[0022] Reference Figures 1-4 A vacuum chamber for testing cosmetic bottles includes a chamber body 1, which consists of a base plate 101 and a sealing cover 102. Multiple rows of positioning grooves 1011 are fixedly connected at equal intervals on the base plate 101. A vacuum tube 1021 is fixedly connected to the sealing cover 102. The chamber also includes: a sealing gasket 1012 disposed on the base plate 101 and located on the outer edge of the multiple rows of positioning grooves 1011; a clamping assembly for tightly fitting the sealing cover 102 to the base plate 101, mounted on the base plate 101; a fixing rod 1022 equidistantly connected inside the sealing cover 102; a mounting rod 1023 equidistantly fixedly connected to the fixing rod 1022 and located directly above the positioning grooves 1011; and a pressure detector 1024 fixedly mounted on the lower end of the mounting rod 1023, which is wirelessly connected to a controller.

[0023] The clamping assembly includes a support plate 2, a screw 201, and a pressure plate 202. The support plate 2 is fixedly connected to the base plate 101, the screw 201 is threadedly connected to the upper end of the support plate 2, and the pressure plate 202 is rotatably connected to the lower end of the screw 201 and is located directly above the sealing cover 102.

[0024] Preliminary preparation: When it is necessary to test the sealing performance of the produced cosmetic bottles, firstly, randomly selected cosmetic bottles are placed into the positioning grooves 1011 on the base plate 101. The positioning grooves 1011 are used to accurately position the bottles to ensure that they are placed stably during the test. After positioning, the sealing cover 102 is placed on the base plate 101. At this time, the sealing gasket 1012 plays a preliminary sealing role between the two.

[0025] Sealing operation: By rotating the screw 201 in the clamping assembly, since the screw 201 is threadedly connected to the support plate 2, the screw 201 will move axially when rotated. The pressure plate 202 connected to the lower end of the screw 201 will move downward accordingly, applying pressure to the sealing cover 102, so that the sealing cover 102 and the bottom plate 101 are tightly fitted, further enhancing the sealing performance of the chamber 1 and creating a good sealing environment for subsequent vacuum testing.

[0026] Vacuuming and Detection: An external vacuum device is connected via vacuum tube 1021 to perform a vacuuming operation inside the vacuum chamber, bringing the chamber to the set vacuum level. During this process, the pressure detector 1024 (capacitive pressure sensor) installed at the lower end of the mounting rod 1023 begins to monitor the internal pressure of the cosmetic bottle in real time. If the cosmetic bottle has a sealing defect, the pressure difference between the inside and outside of the bottle will cause gas to flow through tiny gaps, resulting in a change in the internal pressure. This pressure change acts on the sensitive diaphragm of the capacitive pressure sensor, causing it to deform and thus changing the distance between the capacitor plates, resulting in a change in the capacitance value. The sensor converts the change in capacitance value into an electrical signal and transmits it to the external controller via a wireless signal.

[0027] Result determination: After receiving the electrical signal from the air pressure detector 1024, the external controller analyzes and processes it. Based on the preset pressure change threshold and algorithm, it determines whether there is a sealing problem in the cosmetic bottle. If the air pressure change inside the bottle exceeds the normal range, it indicates that the cosmetic bottle is not well sealed; otherwise, it is determined that the sealing is good. The operator can obtain the sealing test results of each cosmetic bottle through the controller's display interface.

[0028] Compared to the traditional method of judging the seal by visually observing bubbles, capacitive pressure sensors have better stability, faster response speed, higher sensitivity and wider measurement range. They can accurately measure changes in air pressure inside the bottle. Even if the leak is tiny, they can accurately detect abnormal air pressure, effectively avoiding misjudgments caused by insufficient visual observation or difficulty in detecting tiny leaks, and greatly improving the accuracy of cosmetic bottle seal testing.

[0029] Furthermore, it can simultaneously inspect multiple cosmetic bottles placed in the positioning slot 1011, solving the problem that some bottles may not be observed properly due to the large number of bottles in traditional sampling tests. It can perform comprehensive and accurate sealing tests on batch cosmetic bottles, meeting the needs of cosmetic bottle quality inspection in actual production.

[0030] Example 2

[0031] Reference Figures 1-4 A vacuum chamber for testing cosmetic bottles is basically the same as in Example 1, but further: a positioning frame 1013 is fixedly connected to the base plate 101, and when the sealing cover 102 is placed on the base plate 101, the outer surface of the sealing cover 102 is in contact with the inner wall of the positioning frame 1013, and the positioning groove 1011 and the sealing gasket 1012 are both set in the positioning frame 1013.

[0032] When the sealing cover 102 is placed on the base plate 101, the outer surface of the sealing cover 102 is in contact with the inner wall of the positioning frame 1013, which can provide precise positioning for the sealing cover 102. This ensures that the sealing cover 102 can be accurately placed in the right position every time, ensuring the installation accuracy and consistency of the overall structure of the vacuum chamber, and avoiding the sealing effect and the accuracy of the test due to the placement deviation of the sealing cover 102.

[0033] The positioning frame 1013 and the auxiliary sealing cover 102 are accurately positioned. Together with the sealing gasket 1012, they can further improve the sealing performance between the sealing cover 102 and the base plate 101. The sealing cover 102 accurately fits the inner wall of the positioning frame 1013, which can make the sealing gasket 1012 more evenly stressed, reduce sealing gaps, effectively prevent air leakage, and provide a stable vacuum environment in the vacuum chamber, thereby improving the reliability of cosmetic bottle sealing test.

[0034] Example 3

[0035] Reference Figures 1-4A vacuum chamber for testing cosmetic bottles is basically the same as in Example 2, but with a further improvement: First magnetic blocks 1025 are fixedly connected to both ends of the fixing rod 1022. The first magnetic blocks 1025 slide against the inner wall of the sealing cover 102. A sliding groove 1026 is formed in the side wall of the sealing cover 102 near the first magnetic blocks 1025. A second magnetic block 1027, which is magnetically attracted to the first magnetic block 1025, is slidably connected in the sliding groove 1026. Multiple second magnetic blocks 1027 located on the same side are fixedly connected by a lifting frame 1028. Through the magnetic attraction between the first magnetic block 1025 and the second magnetic block 1027, and in conjunction with the lifting frame 1028, the height of the air pressure detector 1024 can be easily and flexibly adjusted. When testing cosmetic bottles of different heights, the operator only needs to manually move the lifting frame 1028, causing the second magnetic blocks 1027 to slide within the sliding groove 1026. Because the second magnetic block 1027 and the first magnetic block 1025 are magnetically attracted to each other, the fixing rod 1022 will move up and down accordingly, thereby adjusting the height of the mounting rod 1023 and the air pressure detector 1024. This design can quickly adapt to various cosmetic bottles of different heights without disassembling or replacing any parts, significantly improving the compatibility and testing efficiency of the vacuum chamber for products of different specifications. This structure can ensure that the air pressure detector 1024 accurately corresponds to the appropriate testing position inside the cosmetic bottle. For bottles of different heights, adjusting the air pressure detector 1024 to the appropriate height can ensure that it accurately obtains the air pressure data inside the bottle, avoiding detection errors caused by position deviation, and ensuring the accuracy and reliability of the test results. Whether it is a short and stout cream bottle or a slender serum bottle, it can achieve accurate air pressure monitoring, providing scientific and effective data support for judging the sealing of cosmetic bottles.

[0036] The inner wall of the sealing cover 102 and the groove wall of the slide 1026 are both rough surfaces. The rough surfaces increase the friction between the first magnetic block 1025 and the inner wall of the sealing cover 102, and between the second magnetic block 1027 and the groove wall of the slide 1026. After adjusting the height of the air pressure detector 1024 by magnetic attraction, the magnetic block is not easy to slide or shift due to factors such as equipment vibration or slight external contact, ensuring that the air pressure detector 1024 is always at the set height, stably acquiring air pressure data inside the cosmetic bottle, and ensuring the accuracy of the test results.

[0037] Two limiting strips 1029 are symmetrically fixedly connected to both sides of the first magnetic block 1025 inside the sealing cover 102. The first magnetic block 1025 slides against the limiting strips 1029. The two limiting strips 1029 are symmetrically arranged on both sides of the first magnetic block 1025, providing precise guidance for the movement of the first magnetic block 1025. When adjusting the height of the barometric pressure detector 1024, the first magnetic block 1025 can only slide up and down along the direction defined by the limiting strips 1029, avoiding left and right deviation or shaking, and ensuring that the barometric pressure detector 1024 can be vertically raised and lowered, accurately corresponding to different heights. The detection position of the cosmetic bottle is adjusted to improve the accuracy of the detection. The limiting strip 1029 slides and fits against the first magnetic block 1025, which restricts the freedom of the first magnetic block 1025 in the non-moving direction. This enhances the stability of the overall structure of the fixing rod 1022 and the air pressure detector 1024 installed on it. Even if vibration occurs during the operation of the vacuum chamber or the internal airflow changes due to vacuuming or venting, the limiting strip 1029 can effectively reduce the shaking of the first magnetic block 1025 and prevent the air pressure detector 1024 from affecting the accuracy of the detection data due to instability.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A vacuum chamber for testing cosmetic bottles, comprising a chamber body (1), characterized in that, The housing (1) consists of a base plate (101) and a sealing cover (102). Multiple rows of positioning grooves (1011) are fixedly connected at equal intervals on the base plate (101). A vacuum tube (1021) is fixedly connected to the sealing cover (102). The housing also includes: A sealing gasket (1012) is disposed on the base plate (101) and is located on the outer ring between the multiple rows of positioning grooves (1011); A clamping assembly for tightly fitting the sealing cover (102) and the base plate (101) is mounted on the base plate (101); The fixing rod (1022) is equidistantly connected inside the sealing cover (102); The mounting rod (1023) is fixedly connected to the fixing rod (1022) at equal intervals and is located directly above the positioning groove (1011); A barometric pressure detector (1024) is fixedly installed at the lower end of the mounting rod (1023), and the barometric pressure detector (1024) is connected to the controller via a wireless signal.

2. The vacuum chamber for testing cosmetic bottles according to claim 1, characterized in that, The clamping assembly includes a support plate (2), a screw (201), and a pressure plate (202). The support plate (2) is fixedly connected to the base plate (101). The screw (201) is threadedly connected to the upper end of the support plate (2). The pressure plate (202) is rotatably connected to the lower end of the screw (201) and is located directly above the sealing cover (102).

3. The vacuum chamber for testing cosmetic bottles according to claim 1, characterized in that, A positioning frame (1013) is fixedly connected to the base plate (101). When the sealing cover (102) is placed on the base plate (101), the outer surface of the sealing cover (102) is in contact with the inner wall of the positioning frame (1013). The positioning groove (1011) and the sealing gasket (1012) are both set in the positioning frame (1013).

4. The vacuum chamber for testing cosmetic bottles according to claim 1, characterized in that, The two ends of the fixed rod (1022) are fixedly connected to the first magnetic block (1025). The first magnetic block (1025) slides against the inner wall of the sealing cover (102). The sealing cover (102) has a sliding groove (1026) in the side wall near the first magnetic block (1025). A second magnetic block (1027) that magnetically attracts the first magnetic block (1025) is slidably connected in the sliding groove (1026). Multiple second magnetic blocks (1027) located on the same side are fixedly connected by a lifting frame (1028).

5. A vacuum chamber for testing cosmetic bottles according to claim 4, characterized in that, The inner wall of the sealing cover (102) and the groove wall of the slide (1026) are both rough surfaces.

6. A vacuum chamber for testing cosmetic bottles according to claim 4, characterized in that, Two limiting strips (1029) are symmetrically fixedly connected inside the sealing cover (102) on both sides of the first magnetic block (1025), and the first magnetic block (1025) slides against the limiting strips (1029).

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