Air leakage testing mechanism

Abstract

The utility model discloses a gas leakage testing mechanism in the field of gas leakage detection of tubular products, which comprises a water tank and a CCD (Charge Coupled Device) camera, the side wall of the water tank is provided with a displacement mechanism for clamping and driving a tubular object to be tested to move in the axial direction, the displacement mechanism comprises a linear module, a movable plate and a clamping module, the linear module is in driving connection with the movable plate, and the clamping module is connected with the CCD camera. The clamping module is fixedly installed on the end face of the movable plate and moves along with the movable plate, a worker enables a tubular to-be-detected object to penetrate through the empty hole, the clamping arm clamps one end of the tubular to-be-detected object, the worker pours a water solution into the water tank to enable the water solution to immerse the tubular to-be-detected object, and the driving piece drives the movable plate to move slowly. The clamping cylinder drives the tubular object to be detected to slowly move together, if air leakage occurs, bubbles can be generated on the water surface, the CCD camera can detect the air leakage position of the tubular object to be detected, and the detection efficiency of the tubular object to be detected can be greatly improved by adopting the mode.

Description

Technical Field

[0001] The utility model relates to the technical field of air leakage detection equipment for tubular products, in particular to an air leakage testing mechanism. Background Art

[0002] Casings are made from the large and small intestines of livestock by scraping off the fat inside. They are mainly used as casings for sausages and sausages. Sheep casings can also be made into gut, which is used to make tennis strings, bowstrings, and surgical sutures.

[0003] Traditional casing air tightness testing is done by filling the casing with water and then visually identifying leaks. This method can easily lead to missed inspections, or some smaller holes are difficult to detect, resulting in an incomplete inspection. Alternatively, the casing is placed in water and tested by blowing air. If bubbles are found, it proves that the section of casing is damaged. However, this testing method is usually based on manual operation and manual testing, which affects product quality when used in the food processing industry, and the testing process is also inefficient. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technical solutions, the utility model provides an air leakage testing mechanism, which can effectively solve the technical problem that the current casing air tightness detection is usually mainly based on manual operation and manual detection methods, and the detection process is low in efficiency.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a leakage testing mechanism, including a water tank and a CCD camera arranged above the water tank, the interior of the water tank is hollow to form a water tank for holding a solution, the water tank is provided with empty holes running through its left and right side walls, a tubular object to be tested that is not fixedly connected to the empty holes is passed through the empty holes, the side walls of the water tank are provided with a displacement mechanism for clamping and driving the tubular object to be tested to move in an axial direction, the displacement mechanism includes a linear module, a movable plate and a clamping module, the linear module is drivingly connected to the movable plate, and the clamping module is fixedly mounted on the end surface of the movable plate and moves therewith.

[0006] Preferably, one end of the water tank is provided with a support frame fixedly connected thereto, the support frame is L-shaped, and the CCD camera is fixedly mounted on the top of the support frame.

[0007] Preferably, the clamping module includes a clamping cylinder and a group of clamping arms spaced apart and arranged on the left and right sides, and the clamping cylinder is drivingly connected to the clamping arms.

[0008] Preferably, the linear displacement module includes a guide rod, a linear slider slidingly engaged with the guide rod, and a driving member for driving the linear slider to move.

[0009] Preferably, a lifting module for driving the movable plate to move up and down is provided on the end surface of the linear slider.

[0010] Preferably, the lifting module includes a lifting plate and a lifting cylinder drivingly connected thereto, and the movable plate and the lifting plate are connected to each other and rise and fall together therewith.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] By setting up a water tank and a CCD camera, workers place the tubular object under test in the empty hole, clamp the clamping arm to one end of the tubular object under test, and pour aqueous solution into the water tank to immerse the tubular object under test. The driving member drives the movable plate to move slowly, so that the clamping cylinder drives the tubular object under test to move slowly together. If there is an air leak, it will produce bubbles on the water surface. The CCD camera can detect the leak location of the tubular object under test. Using this method can greatly improve the inspection efficiency of tubular objects under test. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of an air leakage testing mechanism of the utility model;

[0014] Figure 2 for Figure 1 A magnified view of the structure of part A.

[0015] Numbers in the figure:

[0016] 1-clamping arm, 2-water tank, 3-tubular object to be tested, 4-empty hole, 5-water tank, 6-support frame, 7-CCD camera, 8-guide rod, 9-lifting cylinder, 10-linear slider, 11-lifting plate, 12-movable plate, 13-clamping cylinder. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] like Figure 1-2As shown, the utility model provides an air leakage testing mechanism, including a water tank 2 and a CCD camera 7 arranged above the water tank 2, one end of the water tank 2 is provided with a support frame 6 fixedly connected thereto, the support frame 6 is L-shaped, the CCD camera 7 is fixedly installed on the top of the support frame 6, the lens of the CCD camera 7 is vertically facing the inside of the water tank 5, and the CCD camera 7 is externally connected to an alarm, the interior of the water tank 2 is hollow to form a water tank 5 for holding a solution, the water tank 2 is provided with an empty hole 4 running through its left and right side walls, a tubular object to be tested 3 non-fixedly connected thereto is passed through the empty hole 4, an air blowing mechanism is provided at one end of the tubular object to be tested 3, the side wall of the water tank 2 is provided with a displacement mechanism for clamping and driving the tubular object to be tested 3 to move in the axial direction, the displacement mechanism includes a linear module, a movable plate 12 and a clamping module, the linear module is driven and connected to the movable plate 12, the clamping module The holding module is fixedly mounted on the end surface of the movable plate 12 and moves therewith. The clamping module includes a clamping cylinder 13 and a group of clamping arms 1 arranged at intervals on the left and right. The clamping cylinder 13 is driven and connected to the clamping arm 1. The linear displacement module includes a guide rod 8, a linear slider 10 slidingly matched with the guide rod 8, and a driving member for driving the linear slider 10 to move. The driving member is a driving cylinder, and the output shaft of the driving cylinder drives the linear slider 10 to move. A lifting module for driving the movable plate 12 to move up and down is provided on the end surface of the linear slider 10. The lifting module includes a lifting plate 11 and a lifting cylinder 9 driven and connected thereto. The movable plate 12 is connected to the lifting plate 11 and rises and falls together with it. The lifting module can adjust the height position of the clamping module. The staff can adjust the clamping module to a suitable height position through the lifting module to better clamp the tubular object to be tested 3 for movement;

[0019] The tubular object 3 can be a tubular product such as sausage casing or silicone tube. A worker inserts the tubular object 3 into the hole 4. The clamping arm 1 clamps one end of the tubular object 3. The worker pours aqueous solution into the water tank 5 to submerge the tubular object 3. The worker continuously and slowly replenishes the aqueous solution to keep the tubular object 3 within the aqueous solution, ensuring that the surface of the aqueous solution does not fluctuate significantly. The blowing mechanism blows air into the tubular object 3. Simultaneously, the driving member slowly moves the movable plate 12, causing the clamping cylinder 13 to slowly move the tubular object 3 along with it. Therefore, if there is a leak somewhere in the tubular object 3, the CCD camera 7 detects the bubble and triggers an alarm, notifying the worker to proceed with the next step.

[0020] Compared with traditional technology: by setting up a water tank 2 and a CCD camera 7, the staff inserts the tubular object 3 into the empty hole 4, and the clamping arm 1 clamps one end of the tubular object 3. The staff pours aqueous solution into the interior of the water tank 5 to immerse the tubular object 3. The driving member drives the movable plate 12 to move slowly, thereby causing the clamping cylinder 13 to drive the tubular object 3 to move slowly together. If there is an air leak, bubbles will be generated on the water surface. The CCD camera 7 can detect the leak location of the tubular object 3. Using this method can greatly improve the detection efficiency of the tubular object 3.

[0021] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A gas leakage testing mechanism, comprising a water tank and a CCD camera located above the water tank, characterized in that: The interior of the water tank is hollow to form a water tank for holding the solution. The water tank is provided with a hole running through its left and right side walls. A tubular object to be tested is passed through the hole and is not fixedly connected to the object. The side wall of the water tank is provided with a displacement mechanism for clamping and driving the tubular object to be tested to move in the axial direction. The displacement mechanism includes a linear module, a movable plate and a clamping module. The linear module is drivingly connected to the movable plate, and the clamping module is fixedly mounted on the end surface of the movable plate and moves therewith.

2. The air leakage testing mechanism according to claim 1, characterized in that: One end of the water tank is provided with a support frame fixedly connected thereto, the support frame is L-shaped, and the CCD camera is fixedly installed on the top end of the support frame.

3. The air leakage testing mechanism according to claim 1, characterized in that: The clamping module comprises a clamping cylinder and a group of clamping arms spaced apart and arranged on the left and right sides. The clamping cylinder is drivingly connected to the clamping arms.

4. The air leakage testing mechanism according to claim 1, characterized in that: The linear module includes a guide rod, a linear slider slidingly matched with the guide rod, and a driving member for driving the linear slider to move.

5. The air leakage testing mechanism according to claim 4, characterized in that: A lifting module for driving the movable plate to move up and down is provided on the end surface of the linear slider.

6. The air leakage testing mechanism according to claim 5, characterized in that: The lifting module includes a lifting plate and a lifting cylinder drivingly connected thereto. The movable plate and the lifting plate are connected to each other and rise and fall together therewith.

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