A high and low pressure leakage detection machine for product testing

Abstract

This utility model discloses a high and low pressure leakage detection machine for product testing, including a base: a conveying device is fixedly installed on one side of the top surface of the base; a fixed frame is fixedly installed at one end of the base located on the conveying device; a third conveyor belt is fixedly installed on the top surface of the base located at the other end of the conveying device; a clamping device is fixedly installed on the top surface of the base on the side of the conveying device away from the fixed frame; and a high-pressure pump is fixedly installed on one side of the top surface of the fixed frame. Beneficial effects: This device applies positive and negative pressure to the inside of the bottle through the alternating action of the high-pressure pump and the vacuum pump, respectively, achieving dry-type leak detection without water injection, effectively avoiding drying treatment and energy consumption caused by water residue; in addition, the multi-stage coordination of this device can complete the conveying, positioning, clamping, detection, and intelligent diversion of unqualified bottles, significantly improving detection efficiency and reducing energy consumption and labor costs.

Description

Technical Field

[0001] This utility model relates to the field of product sealing test, and in particular to a high and low pressure leakage tester for product testing. Background Technology

[0002] Currently, most liquid products such as baijiu and huangjiu on the market are packaged in ceramic or glass bottles. These materials have good barrier properties and are widely used in the packaging of various types of wine. However, ceramic and glass bottles are very prone to developing invisible cracks that are difficult to see with the naked eye due to uneven heating or firing defects during production or transportation. These micro-cracks are very easy to expand during filling and subsequent transportation and storage, leading to leakage. In severe cases, they may even cause the bottle to burst, which not only affects the appearance and quality stability of the product, but may also cause safety hazards.

[0003] Currently, the most commonly used testing method in the industry is the manual water injection leak detection method, which involves pouring water into the bottle and observing whether there is water leakage on the outer wall or the bottle opening to determine whether the seal is qualified. Although this method is simple to operate, it has the following significant drawbacks: it requires water injection and observation for each bottle, making it difficult to adapt to the needs of large-scale assembly line testing; residual water in the bottle needs to be dried manually or by equipment, increasing energy consumption and process complexity; the water injection method is not sensitive to hidden cracks, which can lead to misjudgment or missed detection; it requires a lot of manual intervention, making it difficult to guarantee the consistency and efficiency of testing. Utility Model Content

[0004] The main purpose of this invention is to provide a high and low pressure leakage detection machine for product testing, which aims to solve the problems mentioned in the background art.

[0005] To solve the above problems, this utility model proposes a high and low pressure leakage detection machine for product testing, including a base: a conveying device is fixedly installed on one side of the top surface of the base, a fixed frame is fixedly installed at one end of the base located on the conveying device, and a third conveyor belt is fixedly installed on the top surface of the base located at the other end of the conveying device.

[0006] A clamping device is fixedly installed on the top surface of the base on the side of the conveying device away from the fixed frame. A high-pressure pump is fixedly installed on one side of the top surface of the fixed frame, and vacuum pumps are arranged at intervals next to the high-pressure pump.

[0007] A detection device is fixedly installed on the bottom surface of the extended end of the fixing frame, and a control panel is provided on one side of the fixing frame.

[0008] In one embodiment, the conveying device includes mounting plates, a first conveyor belt and a second conveyor belt are provided between two oppositely arranged mounting plates, a positioning plate is slidably arranged in a groove on one side of one of the two mounting plates, a spring is fixedly connected to one side of the positioning plate, and the other end of the spring is fixedly connected to the bottom of the groove.

[0009] Another mounting plate opposite the positioning plate is provided with a through groove for the clamping device to cooperate with the positioning plate to clamp the product. An infrared sensor is provided on the mounting plate near the through groove.

[0010] An arc-shaped baffle is movably installed on the inner wall of the opening at the other end of the mounting plate with the sliding groove, and a micro motor is fixedly installed at the upper end of the opening.

[0011] In one embodiment, a linkage rod is fixedly installed on the inner wall of the arc-shaped baffle. The lower end of the linkage rod is located in the bearing at the bottom of the inner wall of the mounting plate, and the upper end is connected to the output end of the micro motor to drive the arc-shaped baffle to rotate in order to divert unqualified bottles.

[0012] In one embodiment, the clamping device includes a fixed base, a cylinder is provided at the upper end of the fixed base, and a chuck is fixedly connected to the output end of the cylinder.

[0013] In one embodiment, the detection device includes a fixing plate, a hydraulic rod is fixedly connected to the center of the top surface of the fixing plate, and the other end of the hydraulic rod is fixedly connected to the bottom surface of the extension end of the fixing frame;

[0014] The fixed plate is equipped with connecting valves on both sides near the hydraulic rod. Each connecting valve is connected to a connecting pipe, which passes through the fixed frame and connects to the high-pressure pump and the vacuum pump, respectively.

[0015] The output head is fixedly installed on the bottom surface of the fixed plate, and a rubber sleeve is arranged around the output head. A pressure sensor is provided on one side of the lower end of the output head.

[0016] In one embodiment, the fixed plate is provided with an electromagnetic valve to control the connection status between the two connecting valves and the output head, so as to ensure that when the high-pressure pump or vacuum pump is working, the valve on the other side is closed to prevent interference.

[0017] In one embodiment, the high-pressure pump, vacuum pump, pressure sensor, micro motor, cylinder, infrared sensor, solenoid valve, and all conveyor belts are electrically connected to the control panel via connecting lines, and the control panel realizes start-stop and coordinated control. Beneficial effects

[0018] This device uses alternating high-pressure and vacuum pumps to apply positive and negative pressure to the inside of the bottle, achieving dry-type seal testing without water injection. This effectively avoids the drying process and energy consumption caused by water residue, significantly simplifies the process, and improves overall testing efficiency and automation.

[0019] The device is equipped with multi-stage conveyor belts and infrared sensor triggering devices, which can work with the production line to realize the conveying, positioning, clamping, detection and intelligent diversion of unqualified bottles. The entire detection process does not require manual intervention, which greatly improves the consistency of detection and work efficiency. Utilizing the principle of high and low pressure gas leakage, the device collects pressure change data inside the bottle in real time through pressure sensors, which can accurately determine whether there are structural defects in the bottle that are difficult to be identified by the naked eye, such as micro-cracks and cracks, and can effectively reduce the rate of missed detection and false detection. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the main axial structure of this utility model;

[0022] Figure 2 This is a partial structural schematic diagram of the present invention;

[0023] Figure 3 This is the utility model Figure 1 Enlarged structural diagram at point A;

[0024] Figure 4 This is the utility model Figure 3 Enlarged structural diagram at point C;

[0025] Figure 5 This is the utility model Figure 1 Enlarged structural diagram at point B.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Base; 2. Fixing frame; 3. High-pressure pump; 4. Vacuum pump; 5. Detection device; 501. Fixing plate; 502. Hydraulic rod; 503. Connecting valve; 504. Connecting pipe; 505. Output head; 506. Rubber sleeve; 507. Pressure sensor; 6. Conveying device; 601. Mounting plate; 602. Positioning plate; 603. Spring; 604. Infrared sensor; 605. Micro motor; 606. Arc-shaped baffle; 7. First conveyor belt; 8. Second conveyor belt; 9. Clamping device; 901. Fixed base; 902. Cylinder; 903. Chuck; 10. Third conveyor belt; 11. Control panel. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To achieve the above-mentioned utility model objectives, such as Figure 1-4 As shown, this utility model provides a high and low pressure leakage detection machine for product testing, including a base 1: a conveying device 6 is fixedly installed on one side of the top surface of the base 1, a fixing frame 2 is fixedly installed at one end of the base 1 located on the conveying device 6, and a third conveyor belt 10 is fixedly installed on the top surface of the base 1 located at the other end of the conveying device 6.

[0030] A clamping device 9 is fixedly installed on the top surface of the base 1 on the side away from the fixed frame 2 of the conveying device 6. A high-pressure pump 3 is fixedly installed on one side of the top surface of the fixed frame 2. A vacuum pump 4 is arranged at intervals on the side of the high-pressure pump 3.

[0031] A detection device 5 is fixedly installed on the bottom surface of the extension end of the fixed frame 2. A control panel 11 is provided on one side of the fixed frame 2. The detection device 5 includes a fixed plate 501. A hydraulic rod 502 is fixedly connected to the center of the top surface of the fixed plate 501. The other end of the hydraulic rod 502 is fixedly connected to the bottom surface of the extension end of the fixed frame 2.

[0032] A connecting valve 503 is installed on both sides of the fixed plate 501 near the hydraulic rod 502. Each connecting valve 503 is connected to a connecting pipe 504. The connecting pipe 504 passes through the fixed frame 2 and connects to the high-pressure pump 3 and the vacuum pump 4 respectively.

[0033] The output head 505 is fixedly installed on the bottom surface of the fixed plate 501. A rubber sleeve 506 is arranged around the output head 505. A pressure sensor 507 is arranged on one side of the lower end of the output head 505. The fixed plate 501 is equipped with an electromagnetic valve to control the connection status between the two connecting valves 503 and the output head 505 respectively, so as to ensure that the valve on the other side is closed when the high pressure pump 3 or the vacuum pump 4 is working to prevent interference.

[0034] Specifically, the bottles to be tested are first placed manually on the conveyor device 6 at intervals. The bottles are then transported to the testing area by the conveyor path formed by the first conveyor belt 7 and the second conveyor belt 8, which are located between two opposing mounting plates 601. When the infrared sensor 604 detects the bottle's arrival signal, the first conveyor belt 7 automatically stops running, and the clamping device 9 is activated. The clamping device 9 drives the chuck 903 forward through the cylinder 902, cooperating with the positioning plate 602 in the slide groove of the mounting plate 601 to clamp and accurately position the bottle, ensuring that the bottle mouth is aligned with the subsequent output head 505. One end of the positioning plate 602 is connected to a spring 603, which provides cushioning during clamping to prevent damage to the bottle due to excessive clamping force. At the same time, the surfaces of the positioning plate 602 and the chuck 903 are covered with a rubber layer, providing good anti-slip and cushioning performance, ensuring stable clamping and effectively protecting the bottle. After the bottle is fixed, the testing device 5 begins to work. The hydraulic rod 502, located at the bottom of the extension end of the fixed frame 2, drives the fixed plate 501 to move downward, so that the output head 505 installed at its bottom seals against the bottle opening. A rubber sleeve 506 is provided around the output head 505 to enhance sealing and prevent gas leakage from interfering with detection accuracy. After the output head 505 is sealed against the bottle opening, the control panel 11 controls the solenoid valve to switch channels. First, the high-pressure pump 3 is started, and high-pressure gas is introduced into the bottle through the connecting valve 503 and connecting pipe 504. During continuous pressurization, the pressure valve located at the lower end of the output head 505... Force sensor 507 monitors the changes in air pressure inside the bottle in real time. After pressurization, the bottle enters the pressure holding stage. If the air pressure drops rapidly or fluctuates abnormally during the detection process, the bottle is determined to have hidden cracks, micro-cracks, or sealing defects and is therefore a defective product. Subsequently, the solenoid valve switches to vacuum pump 4 to perform a vacuuming operation on the bottle to simulate a negative pressure environment and further test its sealing reliability. The vacuum detection also collects data through pressure sensor 507, realizing dual detection under high pressure and negative pressure conditions, effectively improving detection accuracy and sensitivity, and ensuring that defective bottles are accurately identified.

[0035] To achieve the above-mentioned utility model objectives, such as Figure 1-5 As shown, this utility model provides a high and low pressure leakage detection machine for product testing. The conveying device 6 includes a mounting plate 601. A first conveyor belt 7 and a second conveyor belt 8 are provided between two oppositely arranged mounting plates 601. A positioning plate 602 is slidably arranged in a groove on one side of the two mounting plates 601. A spring 603 is fixedly connected to one side of the positioning plate 602, and the other end of the spring 603 is fixedly connected to the bottom of the groove.

[0036] Another mounting plate 601 opposite to the positioning plate 602 is provided with a through groove for the clamping device 9 to cooperate with the positioning plate 602 to clamp the product. An infrared sensor 604 is provided on the mounting plate 601 near the through groove.

[0037] An arc-shaped baffle 606 is movably installed on the inner wall of the opening at the other end of the mounting plate 601 with a chute. A micro motor 605 is fixedly installed at the upper end of the opening. A linkage rod is fixedly installed on the inner wall of the arc-shaped baffle 606. The lower end of the linkage rod is located in the bearing at the bottom of the inner wall of the mounting plate 601, and the upper end is connected to the output end of the micro motor 605. It is used to drive the arc-shaped baffle 606 to rotate to achieve the diversion of unqualified bottles. The clamping device 9 includes a fixed base 901. A cylinder 902 is installed at the upper end of the fixed base 901. A chuck 903 is fixedly connected to the output end of the cylinder 902. The high-pressure pump 3, vacuum pump 4, pressure sensor 507, micro motor 605, cylinder 902, infrared sensor 604, solenoid valve and all conveyor belts are electrically connected to the control panel 11 through connection lines. The control panel 11 realizes start-stop and coordinated control.

[0038] Specifically, after the inspection is completed, the control panel 11 controls the hydraulic rod 502 to move upward, causing the fixing plate 501 to move upward, so that the output head 505 is disengaged from the bottle mouth; then the control panel 11 controls the cylinder 902 to reset, and the clamp 903 to release, completing the release of the bottle; at the same time, the positioning plate 602, under the rebound action of the spring 603, resets the bottle to the conveyor belt. If the bottle inspection result is qualified, the bottle will continue to be conveyed by the first conveyor belt 7 to the second conveyor belt 8 and enter the subsequent process for processing; if the inspection result is unqualified, the control panel 11 will drive the micro motor 605 to rotate, causing the arc-shaped baffle 606 to rotate to the preset offset. As the bottle passes the baffle, it is guided by the arc-shaped baffle 606 to deflect onto the third conveyor belt 10 on the other side, thus automatically rejecting defective products. Through the above process, this device realizes automatic bottle conveying, precise positioning, high and low pressure sealing detection, and intelligent sorting of defective products. The entire detection process does not rely on manual water injection and requires no manual intervention, avoiding human error and cumbersome procedures such as drying. It is particularly suitable for efficient and non-destructive testing of containers such as glass bottles and ceramic bottles that are prone to hidden cracks, significantly improving detection efficiency and consistency, and reducing labor costs and quality risks.

[0039] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A high-low pressure leak detection machine for product detection, comprising a base (1), characterized in that, A conveying device (6) is fixedly installed on one side of the top surface of the base (1), a fixed frame (2) is fixedly installed at one end of the base (1) located on the conveying device (6), and a third conveyor belt (10) is fixedly installed on the top surface of the base (1) located at the other end of the conveying device (6). The conveying device (6) has a clamping device (9) fixedly installed on the top surface of the base (1) on the side away from the fixed frame (2), and a high pressure pump (3) is fixedly installed on one side of the top surface of the fixed frame (2), and a vacuum pump (4) is arranged at intervals on the side of the high pressure pump (3). A detection device (5) is fixedly installed on the bottom surface of the extended end of the fixed frame (2), and a control panel (11) is provided on one side of the fixed frame (2).

2. The high and low pressure leakage detection machine for product testing as described in claim 1, characterized in that, The conveying device (6) includes a mounting plate (601), a first conveyor belt (7) and a second conveyor belt (8) are provided between two oppositely arranged mounting plates (601), a positioning plate (602) is slidably arranged in a groove on one side of one of the two mounting plates (601), a spring (603) is fixedly connected to one side of the positioning plate (602), and the other end of the spring (603) is fixedly connected to the bottom of the groove; Another mounting plate (601) opposite to the positioning plate (602) is provided with a through groove for the clamping device (9) to cooperate with the positioning plate (602) to clamp the product. An infrared sensor (604) is provided on the mounting plate (601) near the through groove. An arc-shaped baffle (606) is movably installed on the inner wall of the opening at the other end of the mounting plate (601) on one side of the slide groove, and a micro motor (605) is fixedly installed at the upper end of the opening.

3. A high and low pressure leakage detection machine for product testing as described in claim 2, characterized in that, A linkage rod is fixedly installed on the inner wall of the arc-shaped baffle (606). The lower end of the linkage rod is located in the bearing at the bottom of the inner wall of the mounting plate (601), and the upper end is connected to the output end of the micro motor (605) to drive the arc-shaped baffle (606) to rotate so as to divert unqualified bottles.

4. A high and low pressure leakage detection machine for product testing as described in claim 3, characterized in that, The clamping device (9) includes a fixed base (901), and a cylinder (902) is provided on the upper end of the fixed base (901). A chuck (903) is fixedly connected to the output end of the cylinder (902).

5. A high and low pressure leakage detection machine for product testing as described in claim 4, characterized in that, The detection device (5) includes a fixing plate (501), a hydraulic rod (502) is fixedly connected to the center of the top surface of the fixing plate (501), and the other end of the hydraulic rod (502) is fixedly connected to the bottom surface of the extension end of the fixing frame (2); The fixed plate (501) is equipped with connecting valves (503) on both sides near the hydraulic rod (502). Each connecting valve (503) is connected to a connecting pipe (504). The connecting pipe (504) passes through the fixed frame (2) and connects to the high-pressure pump (3) and the vacuum pump (4). The output head (505) is fixedly installed on the bottom surface of the fixed plate (501), and a rubber sleeve (506) is arranged around the output head (505). A pressure sensor (507) is provided on one side of the lower end of the output head (505).

6. A high and low pressure leakage detection machine for product testing as described in claim 5, characterized in that, The fixed plate (501) is equipped with an electromagnetic valve, which is used to control the connection state between the two connecting valves (503) and the output head (505) respectively, so as to ensure that when the high pressure pump (3) or the vacuum pump (4) is working, the valve on the other side is closed to prevent interference.

7. A high and low pressure leakage detection machine for product testing as described in claim 6, characterized in that, The high-pressure pump (3), vacuum pump (4), pressure sensor (507), micro motor (605), cylinder (902), infrared sensor (604), solenoid valve and all conveyor belts are electrically connected to the control panel (11) through connection lines, and the control panel (11) realizes start-stop and coordinated control.

Images