Professional manufacturer ofplastic pipesCreate with care to serve customers

      After the corrugated pipe is formed, it is necessary to inspect whether there are holes on the corrugated pipe to prevent defective products from entering the market and ensure the quality of production and processing. At present, there are also methods that use light detection. The light source is placed inside a corrugated tube to move the light source inside the corrugated tube. A photosensitive element is set on the outside of the corrugated tube to follow the movement of the light source and detect the light through the photosensitive element. When there are holes on the corrugated pipe, the light emitted by the light source passes through the holes to the outer side of the corrugated pipe. After receiving the light, the photosensitive element sends an indicator signal, indicating that the corrugated pipe has holes and is a defective product that needs to be eliminated. However, due to the presence of multiple folds on the corrugated pipe, adjacent folds can easily block each other. When the hole is blocked by adjacent folds, light still cannot be emitted from the hole, which can easily cause false detection and poor detection effect.

      This article aims to provide a hole detection device for plastic corrugated pipes to improve the detection accuracy of corrugated pipes.

      To achieve the above objectives, the basic technical solution of this product is as follows: a plastic corrugated pipe hole detection device, including a detection platform, a detection platform including a bottom plate, a frame on the bottom plate, perforations that run through the bottom plate from top to bottom on the bottom plate, a metal bell shell on the lower side of the bottom plate, an upper opening at the upper end of the metal bell shell, a lower opening at the lower end, and an upper opening connected to the lower end of the perforation. A vibration shaft is movably connected to the metal bell shell, and one end of the vibration shaft sequentially passes through the upper opening and perforation and extends to the upper side of the bottom plate. The part of the vibration shaft inside the metal bell shell is connected to a pull rope, which is connected to a hanging ball. The hanging ball is located inside the metal bell shell, and a fixed mechanism is installed on the frame, which includes a rotating mechanism The central shaft tube connected to the rack is equipped with an air box at one end of the central shaft tube, The central shaft pipe is fixedly connected to a pulley, which is connected to a first motor. The other end of the central shaft pipe is fixedly connected to a threaded pipe, and a threaded central slider is sleeved on the threaded pipe. The central slider is slidably connected to a vertical rod, and the outer part of the central shaft pipe is sleeved with an outer pipeline. The outer pipeline is rotatably connected to the frame and connected to a second motor, and the outer pipeline is fixedly connected to an upper diagonal rod. The upper diagonal rod is slidably connected to an upper slider, and the upper slider is also slidably connected to the vertical rod.

      The principle of this scheme is that the fixed mechanism is used to fix the corrugated pipe. When the first motor is working, it drives the threaded pipe to rotate through the belt pulley and the central shaft pipe. When the second motor is working, it will drive the outer pipe to rotate, and the outer pipe will drive the fixed upper diagonal rod to rotate. The upper slider on the upper diagonal rod will follow the movement. As there is a vertical rod connected between the upper slider and the central slider, the upper slider will drive the central slider to rotate on the threaded pipe. When there is a difference in speed between the first motor and the second motor, the rotation speed of the center slider comes from the second motor, while the rotation speed of the threaded pipe comes from the first motor. Therefore, there will be a speed difference between the center slider and the threaded pipe, causing the threaded pipe to push the center slider to slide. The central slider slides and drives the upper slider to move together through the vertical rod, thereby causing the upper slider to move away from the end of the central axis pipe and pressing the corrugated pipe tightly, achieving automatic fixation of the corrugated pipe. At this point, the air inside the bellows will be blown into the threaded pipe through the central axis pipe and into the corrugated pipe through the threaded pipe. The airflow moves from one end of the corrugated pipe to the other. When there are holes on the corrugated pipe, the airflow will blow out from the holes to the bottom plate of the detection platform, causing vibration of the vibration shaft. During the vibration process, the vibrating shaft continuously swings the hanging ball, causing it to hit the metal bell shell, which makes the metal bell shell sound and reminds the operator that the corrugated pipe has holes and is a defective product; When there are no holes on the corrugated pipe, the airflow is blown out through the other end of the corrugated pipe, so it will not cause the metal bell shell to sound, thus conducting the detection of the corrugated pipe.

      After the upper slider presses against the corrugated pipe, the upper slider continues to rotate under the drive of the upper diagonal rod, causing the corrugated pipe pressed against the upper slider to rotate accordingly. This enables different parts to be closer to the vibration axis and comprehensive inspection of multiple parts to ensure detection accuracy.

      The beneficial effects of this method are as follows: 1. This product uses wind for hole detection on corrugated pipes. Compared to the existing technology that uses light detection, on the one hand, due to the non fixed direction of wind movement, it can be filled inside the corrugated pipe after entering, thus conducting a comprehensive inspection of the corrugated pipe; On the other hand, due to the wind having a certain blowing force on other objects during the flow process, when the hole is obstructed by adjacent wrinkles, it can push the obstructed area away and flow out of the hole, thus improving the accuracy of detection. 2. By observing whether the vibrating shaft vibrates through the blown wind vibration, it can be determined whether the corrugated pipe has holes; The vibrating shaft vibrates and strikes the metal bell shell, making the metal bell shell sound, thereby achieving the purpose of reminding and alarming, facilitating the operator's timely handling. 3. By rotating the threaded pipe, the central slider drives the upper slider to slide and fix the corrugated pipe tightly, and drives the corrugated pipe to rotate, thus enabling comprehensive inspection of multiple parts of the corrugated pipe and improving the accuracy of the inspection.

      The outer pipeline is also fixedly connected with a lower inclined rod, which is slidably connected with a lower slider, and the lower slider is also slidably connected to the vertical rod. The lower diagonal rod is combined with the upper diagonal rod to simultaneously press the corrugated pipe tightly, ensuring the stable rotation of the corrugated pipe and facilitating the inspection of the corrugated pipe.

      There is a water tank on the lower side of the bottom plate, and the end of the vibration shaft that is far away from the bottom plate extends into the water tank. The upper part of the water tank is connected to a water pipe, which is connected to the central axis pipe. A water chestnut is installed on the water pipe. When the vibrating shaft vibrates, it will cause fluctuations in the water in the tank, causing the water level to continuously rise and fall. During the process of water level changes, some of the water flows into the water pipe and is pumped into the central shaft pipe by the water pump, and then flows into the corrugated pipe through the threaded pipe. During this process, the operator can determine whether the corrugated pipe has holes by observing the fluctuation of the water surface or whether there is water inside the detected corrugated pipe, enhancing the judgment basis and achieving accurate detection.

     There are two sets of fixed mechanisms, two sets of fixed mechanisms are set facing each other, and one set of fixed mechanisms is sliding connected to the bottom plate. Two sets of fixed mechanisms simultaneously press and fix the two ends of the corrugated pipe, to prevent one set of fixed mechanisms from effectively fixing the corrugated pipe when it is heavy, or when the corrugated pipe is light, the end of the corrugated pipe that is not fixed by the fixed mechanism will swing, ensuring the stable detection of the corrugated pipe.

There are multiple perforations arranged in a straight line, and the perforations are located between two sets of fixed mechanisms. Multiple perforations simultaneously detect multiple parts on the corrugated pipe to improve detection accuracy.

      The upper end of the perforation is connected to a conical opening, and the perforation is connected to the smaller end of the conical opening. Compared to circular ports, conical ports can concentrate and guide the airflow blown out of corrugated pipes onto the vibration shaft, causing significant vibration and facilitating detection and observation.

      Both ends of the vertical rod and the end of the threaded tube away from the central axis tube are equipped with limit blocks. The limit block can prevent the center slider, upper slider, or lower slider from falling off the threaded pipe or vertical rod.