A kind of bottle cap air tightness detector detection equipment

Abstract

This utility model discloses an airtightness testing device for bottle caps, comprising: a worktable with a groove on its top and anti-slip pads fixedly installed on the outer wall of its bottom; a positioning fixture including a guide rail, the inner wall of which is rotatably connected to a lead screw via a bearing, and a sliding bracket connected to the inner wall of the guide rail for positioning the top of the bottle cap; and a pneumatic testing device including a sealing cover. This invention relates to the technical field of airtightness testing equipment. The positioning fixture achieves precise positioning of the bottle body and the bottle cap, with the bottle bottom positioning groove and the bottle cap positioning groove engaging to ensure stable relative positions during testing. The sealing cover and the groove form a tight sealing space through a sealing ring. Combined with a pressure sensor to monitor pressure changes in real time, the device can objectively and accurately determine the airtightness of the bottle cap, avoiding subjective errors in manual testing and significantly improving the reliability of the test results.

Description

Technical Field

[0001] This utility model relates to the technical field of air tightness testing equipment, specifically an air tightness testing device for bottle caps. Background Technology

[0002] In the food, beverage, and pharmaceutical industries, the airtightness of bottle caps is a key factor in ensuring product quality and shelf life. Poor airtightness of bottle caps can easily lead to leakage, spoilage, or contamination of the contents, directly affecting product quality and consumer health.

[0003] Traditional bottle cap airtightness testing often involves manually immersing the cap in water to observe for air bubbles. This method is not only inefficient but also relies heavily on operator experience, making it subjective and prone to misjudgment. Furthermore, the caps require drying after immersion testing, increasing the process and cost. Some automated testing equipment suffers from insufficient positioning accuracy, leading to misalignment between the cap and the bottle during testing and affecting the accuracy of the results. In addition, inconvenient parameter adjustment and unintuitive data recording also hinder improvements in testing efficiency and quality traceability. Utility Model Content

[0004] The purpose of this invention is to provide a bottle cap airtightness testing device to solve the problem mentioned in the background art that the traditional method of manually immersing the bottle cap in water to observe bubbles is not only inefficient, but also relies on the operator's experience and judgment, which is highly subjective and prone to misjudgment.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A bottle cap airtightness testing device includes:

[0007] The workbench has a groove on its top and anti-slip pads fixedly installed on the bottom outer wall of the workbench.

[0008] A positioning fixture includes a guide rail, the inner wall of which is rotatably connected to a lead screw via a bearing, and the inner wall of which is slidably connected to a retaining seat, the retaining seat being used to position the top of a bottle cap.

[0009] A pneumatic testing device includes a sealing cover, an air pump is fixedly installed on the top of the workbench, and the output end of the air pump is connected to the sealing cover through an air pipe.

[0010] In a preferred embodiment of this utility model, a handwheel is fixedly installed on the top outer wall of the lead screw, and a bottle cap positioning groove is provided on the top of the card seat.

[0011] In a preferred embodiment of this utility model, a bottle bottom positioning groove is provided at the top center of the groove. The bottle bottom positioning groove and the bottle cap positioning groove cooperate to engage and position the bottle body and bottle cap to be tested. A viewing window is provided on the inner wall of the sealing cover.

[0012] In a preferred embodiment of the present invention, the pneumatic detection device includes a support frame, which is fixedly installed on the top outer wall of the workbench, and a cylinder is fixedly installed on the bottom outer wall of the support frame.

[0013] In a preferred embodiment of this utility model, a sealing cover is fixedly connected to the outer wall of the bottom output shaft of the cylinder, and a sealing ring is provided at the bottom of the sealing cover, which is sealed and connected with the inner wall of the groove.

[0014] In a preferred embodiment of this utility model, a pressure sensor is fixedly installed on the top outer wall of the sealing cover, and a solenoid valve is fixedly installed on the outer wall of the air pipe.

[0015] In a preferred embodiment of this utility model, a controller is fixedly installed on the top outer wall of the workbench, and a display screen and operation buttons are fixedly installed on the front outer wall of the controller. The controller is electrically connected to a cylinder, an air pump, an air pressure sensor, and a solenoid valve.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0017] 1. This equipment achieves precise positioning of the bottle body and bottle cap through positioning clamps. The positioning groove on the bottom of the bottle and the positioning groove on the bottle cap are engaged to ensure that the relative positions of the two are stable during testing. The sealing cover and the groove form a tight sealing space through the sealing ring. Combined with the air pressure sensor to monitor air pressure changes in real time, it can objectively and accurately judge the air tightness of the bottle cap, avoid the subjective error of manual testing, and significantly improve the reliability of the test results.

[0018] 2. The equipment integrates a pneumatic detection device and an intelligent control system. The controller is electrically connected to components such as cylinders, air pumps, and solenoid valves, which can realize the automatic formation of sealed space, gas delivery control, and data analysis, reducing manual intervention. The operation buttons facilitate parameter setting, and the display screen can intuitively display the detection data and results. After the detection is completed, the sealing cover can automatically reset. The whole process is efficient and smooth, which greatly improves the detection efficiency and reduces the labor intensity of operators. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the main structure of a bottle cap airtightness testing device.

[0021] Figure 2 This is a rear view schematic diagram of a bottle cap airtightness testing device.

[0022] Figure 3 This is a schematic diagram of the working structure of a bottle cap airtightness testing device.

[0023] Figure 4 This is a schematic diagram of the positioning component in a bottle cap airtightness testing device.

[0024] In the diagram: workbench 100, anti-slip pad 110, groove 120, bottle bottom positioning groove 121, positioning fixture guide rail 300, lead screw 310, handwheel 320, card seat 330, bottle cap positioning groove 331, pneumatic detection device, support frame 200, cylinder 210, sealing cover 220, air pressure sensor 221, air pump 240, air pipe 241, solenoid valve 242, controller 400, display screen 410, operation button 420. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0026] Example 1: As Figures 1-4 ,include:

[0027] The workbench 100 has a groove 120 on its top and anti-slip pads 110 fixedly installed on the bottom outer wall of the workbench 100.

[0028] The positioning fixture includes a guide rail 300, the inner wall of the guide rail 300 is rotatably connected to a lead screw 310 via a bearing, and the inner wall of the guide rail 300 is slidably connected to a retainer 330, which is used to position the top of the bottle cap.

[0029] The pneumatic testing device includes a sealing cover 220, an air pump 240 fixedly installed on the top of the workbench 100, and the output end of the air pump 240 is connected to the sealing cover 220 through an air pipe 241.

[0030] The specific application scenario of this embodiment is as follows: The workbench 100 provides the installation base for the entire device, and the anti-slip pads 110 on its bottom enhance the stability of the device and prevent slippage during the detection process. The groove 120 on the top of the workbench 100 provides space for the detection operation. In the positioning fixture, the guide rail 300 provides installation guidance for the lead screw 310 and the locator 330. The lead screw 310 is rotatably connected to the guide rail 300 through the bearing. The locator 330 slides on the inner wall of the guide rail 300, which can position and fix the top of the bottle cap. In the pneumatic detection device, the air pump 240 generates air pressure and delivers the gas to the sealing cover 220 through the air pipe 241. The sealing cover 220 and the groove 120 form a sealed space, thereby detecting the airtightness of the bottle cap.

[0031] Example 2: Figure 1 and Figure 4 A handwheel 320 is fixedly installed on the top outer wall of the lead screw 310. A bottle cap positioning groove 331 is provided on the top of the card holder 330. A bottle bottom positioning groove 121 is provided at the top center of the groove 120. The bottle bottom positioning groove 121 and the bottle cap positioning groove 331 cooperate to engage and position the bottle body and bottle cap to be tested. A viewing window 230 is provided on the inner wall of the sealing cover 220.

[0032] The specific application scenario of this embodiment is as follows: rotating the handwheel 320 can drive the lead screw 310 to rotate, and the lead screw 310 drives the card holder 330 to slide within the guide rail 300, thereby adjusting the position of the card holder 330. The bottle cap positioning groove 331 on the top of the card holder 330 is used to position the bottle cap, and the bottle bottom positioning groove 121 on the top of the groove 120 of the workbench 100 is used to position the bottle body. The two work together to accurately engage and position the bottle body and the bottle cap, ensuring stability during testing. The viewing window 230 on the inner wall of the sealing cover 220 allows the operator to observe the internal testing situation and understand the sealing status of the bottle cap in a timely manner.

[0033] Example 3: Figures 1-3 The pneumatic detection device includes a support frame 200, which is fixedly installed on the top outer wall of the workbench 100. A cylinder 210 is fixedly installed on the bottom outer wall of the support frame 200. A sealing cover 220 is fixedly connected to the bottom output shaft outer wall of the cylinder 210. A sealing ring is provided at the bottom of the sealing cover 220. The sealing ring is sealed and connected to the inner wall of the groove 120. A pressure sensor 221 is fixedly installed on the top outer wall of the sealing cover 220. A solenoid valve 242 is fixedly installed on the outer wall of the air pipe 241. A controller 400 is fixedly installed on the top outer wall of the workbench 100. A display screen 410 and an operation button 420 are fixedly installed on the front outer wall of the controller 400. The controller 400 is electrically connected to the cylinder 210, the air pump 240, the pressure sensor 221, and the solenoid valve 242.

[0034] The specific application scenario of this embodiment is as follows: The support frame 200 is fixed on the top of the workbench 100 to provide installation support for the cylinder 210. When the cylinder 210 is working, its output shaft can drive the sealing cover 220 to move up and down. The sealing ring at the bottom of the sealing cover 220 cooperates with the inner wall of the groove 120 to form a sealed detection environment. The gas generated by the air pump 240 is delivered to the sealing cover 220 through the air pipe 241. The solenoid valve 242 controls the opening and closing of the air pipe 241 to regulate the gas supply. The air pressure sensor 221 on the top of the sealing cover 220 can monitor the air pressure change in the sealed space in real time. The controller 400 is electrically connected to the cylinder 210, the air pump 240, the air pressure sensor 221 and the solenoid valve 242. The operator sets the parameters through the operation button 420. The display screen 410 displays the detection data and equipment status. The controller 400 judges whether the air tightness of the bottle cap is qualified according to the detection result of the air pressure sensor 221, so as to realize automated detection.

[0035] The working principle of this utility model is as follows: When used by those skilled in the art, this bottle cap airtightness testing equipment achieves automated testing of the airtightness of the bottle cap through the coordinated work of the workbench, positioning fixture, and pneumatic testing device. The workbench 100 provides stable support for the entire equipment, and the anti-slip pads 110 at the bottom prevent the equipment from sliding during the testing process. The groove 120 at the top serves as the main space for the testing operation. During positioning, the bottle body is placed into the bottle bottom positioning groove 121 at the top of the groove 120. The handwheel 320 is turned to drive the lead screw 310 to rotate within the guide rail 300, causing the card holder 330 to slide along the guide rail 300 until the bottle cap positioning groove 331 at the top of the card holder 330 precisely engages with the bottle cap, achieving coordinated positioning of the bottle body and the bottle cap and ensuring accurate testing position. During the testing phase, the controller 400 starts the equipment after receiving the instruction from the operation button 420. The cylinder 210 on the support frame 200 works, pushing the sealing cover 220 downward. The sealing ring at the bottom fits tightly with the inner wall of the groove 120 to form a sealed space. Subsequently, the air pump 240 delivers gas into the sealed space through the air pipe 241. The solenoid valve 242 controls the on / off state and flow rate of the gas delivery. The air pressure sensor 221 on the top of the sealing cover 220 monitors the air pressure changes in the sealed space in real time and transmits the data to the controller 400. The controller 400 analyzes the air pressure data to determine whether the airtightness of the bottle cap meets the standard. The test results are displayed in real time on the display screen 410. If the air pressure remains stable, it indicates that the bottle cap has good airtightness. If the air pressure drops and there is liquid leakage at the bottle opening after the bottle is removed, it indicates that there is a leak. After the test is completed, the cylinder 210 drives the sealing cover 220 to reset, making it easy to remove the tested bottle and bottle cap, thus completing the entire airtightness test process. All components involved in this utility model are externally connected to the controller in a conventional manner. The above structures and principles are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0036] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A bottle cap airtightness testing device, characterized in that, include: A workbench (100) is provided with a groove (120) on the top and an anti-slip pad (110) is fixedly installed on the bottom outer wall of the workbench (100). The positioning fixture includes a guide rail (300), the inner wall of which is rotatably connected to a lead screw (310) via a bearing, and a slidably connected bracket (330) to the inner wall of the guide rail (300), the bracket (330) being used to position the top of the bottle cap; The pneumatic testing device includes a sealing cover (220), and an air pump (240) is fixedly installed on the top of the workbench (100). The output end of the air pump (240) is connected to the sealing cover (220) through an air pipe (241).

2. The airtightness testing device for bottle caps according to claim 1, characterized in that, A handwheel (320) is fixedly installed on the top outer wall of the lead screw (310), and a bottle cap positioning groove (331) is provided on the top of the card holder (330).

3. The airtightness testing device for bottle caps according to claim 2, characterized in that, The top center of the groove (120) is provided with a bottle bottom positioning groove (121), which cooperates with the bottle cap positioning groove (331) to engage and position the bottle body and bottle cap to be tested. The inner wall of the sealing cover (220) is provided with a viewing window (230).

4. The airtightness testing device for bottle caps according to claim 1, characterized in that, The pneumatic testing device includes a support frame (200), which is fixedly installed on the top outer wall of the workbench (100), and a cylinder (210) is fixedly installed on the bottom outer wall of the support frame (200).

5. The airtightness testing device for bottle caps according to claim 4, characterized in that, A sealing cover (220) is fixedly connected to the outer wall of the bottom output shaft of the cylinder (210). A sealing ring is provided at the bottom of the sealing cover (220), and the sealing ring is sealed to the inner wall of the groove (120).

6. The airtightness testing device for bottle caps according to claim 5, characterized in that, A pressure sensor (221) is fixedly installed on the top outer wall of the sealing cover (220), and a solenoid valve (242) is fixedly installed on the outer wall of the air pipe (241).

7. The airtightness testing device for bottle caps according to claim 6, characterized in that, A controller (400) is fixedly installed on the top outer wall of the workbench (100). A display screen (410) and operation buttons (420) are fixedly installed on the front outer wall of the controller (400). The controller (400) is electrically connected to a cylinder (210), an air pump (240), an air pressure sensor (221), and a solenoid valve (242).

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