Device for automatically detecting wall thickness of stay tube

Abstract

The utility model discloses a stay tube wall thickness automatic detection device, and relates to the field of medical pipeline detection devices. The automatic detection device for the wall thickness of the stay tube comprises a cooling water tank and a medical pipeline arranged in the cooling water tank, an ultrasonic sensor used for detecting the medical pipeline is arranged in the cooling water tank, and a control system host and a display screen which are used for feeding back information are arranged on the outer side of the cooling water tank; and a right-angle plate and a guide wheel which are used for supporting the medical pipeline are arranged in the cooling water tank. According to the automatic detection device for the wall thickness of the stay tube, the ultrasonic sensor is arranged in the cooling water tank, the control system host and the display screen are arranged on the side of the cooling water tank, and the thickness of a medical pipeline can be detected through the ultrasonic sensor and is fed back to the control system host and the display screen in real time for monitoring; and meanwhile, a right-angle plate and a guide wheel are arranged, so that the conveyed medical pipeline can be stably supported.

Description

Technical Field

[0001] The utility model relates to the technical field of medical pipeline detection, in particular to an automatic detection device for the wall thickness of a drawn pipe. Background Art

[0002] Medical catheters are the most common tools in the hands of doctors. They are made by extruding polymers into simple raw tubes, which are then assembled into the final catheter device. They are mainly tubular rubber products used in medical treatment.

[0003] The existing medical tubes cannot monitor the inner wall thickness in real time during extrusion production. The hourly output of extruded tubes is high. If the wall thickness deviation is not found in time, it is easy to cause a large number of defective products to be scrapped.

[0004] The reason for this problem is that during the extrusion production of existing medical pipes, only the outer diameter of the pipe is monitored online. Due to the small inner diameter of the medical pipe, the wall thickness of the inner wall cannot be monitored online in real time. Random inspection is required during product inspection, making it difficult to ensure the quality of the product. Secondly, excessive wall thickness of the pipe can easily cause excessive inner diameter and toughness of the pipe. However, there is time limitation in the random inspection process. The hourly output of extruded pipes is high. If the excessive wall thickness outside the specification is not discovered in time, it is very easy to cause a large number of defective products to be scrapped. In view of the shortcomings of the existing technology, we propose an automatic detection device for the wall thickness of drawn pipes to solve the above problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the utility model provides an automatic detection device for the wall thickness of a drawn tube, which solves the problem that the thickness of the inner wall of the existing medical tube cannot be monitored online in real time during extrusion production. The hourly output of the extruded tube is high, and if the wall thickness deviation outside the specification cannot be discovered in time, it is very easy to cause a large number of defective products to be scrapped.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: an automatic detection device for the wall thickness of a drawn tube, comprising a cooling water tank and a medical pipe arranged inside the cooling water tank, wherein a detection unit and a support unit are arranged inside the cooling water tank;

[0007] The detection unit includes an ultrasonic sensor disposed inside the cooling water tank, the ultrasonic sensor is used to detect the medical pipeline, and a control system host and a display screen for feedback information are disposed outside the cooling water tank;

[0008] The supporting unit comprises a right-angle plate and a guide wheel which are arranged inside the cooling water tank, and the right-angle plate and the guide wheel are used to support the medical pipeline.

[0009] Preferably, a cover plate is rotatably connected to the top of the cooling water trough, a mounting base is fixedly connected to the inside of the cooling water trough, and the ultrasonic sensor is arranged inside the mounting base.

[0010] Preferably, the display screen is installed inside a control system host, and the display screen is used to monitor medical pipelines.

[0011] Preferably, a sensor circuit is provided on the top of the mounting base, and an end of the sensor circuit is mounted on a side wall of a control system host.

[0012] Preferably, the right-angle plates are fixedly connected inside the cooling water tank, and the right-angle plates are distributed on both sides of the mounting base.

[0013] Preferably, a slide groove is provided on the side wall of the right-angle plate, and a threaded rod is slidably connected inside the slide groove;

[0014] The guide wheel is internally rotatably connected with a shaft rod, the shaft rod is threadedly sleeved on the outer peripheral wall of the threaded rod, and the threaded rod is used to clamp and fix the shaft rod.

[0015] Preferably, the medical tube is slidably connected to the side wall of the guide wheel, and the end of the medical tube passes through the side wall of the mounting base and the ultrasonic sensor in sequence.

[0016] The utility model discloses an automatic detection device for the wall thickness of a drawn tube, which has the following beneficial effects: the automatic detection device for the wall thickness of a drawn tube is provided with an ultrasonic sensor inside a cooling water tank, and a control system host and a display screen are provided on the side of the cooling water tank. When the medical tube produced by extrusion passes through the ultrasonic sensor, the ultrasonic sensor will detect its thickness, and provide real-time feedback to the control system host and the display screen for monitoring. If the wall thickness exceeds the tolerance, an alarm will be issued in time, thereby reducing batch scrapping and lowering the defective product rate. At the same time, by providing a right-angle plate and a guide wheel, the transported medical tube can be stably supported. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the cooling water tank of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the ultrasonic sensor of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the guide wheel of the utility model.

[0021] In the figure: 1. cooling water tank; 101. cover plate; 2. mounting base; 201. ultrasonic sensor; 202. sensor circuit; 3. control system host; 301. display screen; 4. medical pipe; 5. right-angle plate; 501. slide groove; 502. guide wheel; 503. shaft rod; 504. threaded rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The embodiment of the present application provides an automatic detection device for the wall thickness of a drawn tube, thereby solving the problem that the thickness of the inner wall of the existing medical tube cannot be monitored online in real time during extrusion production. The hourly output of the extruded tube is high, and if the wall thickness deviation outside the specification cannot be discovered in time, it is very easy to cause a large number of defective products to be scrapped.

[0024] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] The utility model embodiment discloses an automatic detection device for the wall thickness of a drawn tube.

[0026] According to the attached Figure 1-3 As shown, an automatic detection device for the wall thickness of a drawn tube comprises a cooling water tank 1 and a medical pipe 4 arranged inside the cooling water tank 1, wherein a detection unit and a support unit are arranged inside the cooling water tank 1;

[0027] The detection unit includes an ultrasonic sensor 201 disposed inside the cooling water tank 1, the ultrasonic sensor 201 is used to detect the medical pipe 4, and a control system host 3 and a display screen 301 for feedback information are disposed outside the cooling water tank 1;

[0028] The supporting unit includes a right-angle plate 5 and a guide wheel 502 arranged inside the cooling water tank 1 , and the right-angle plate 5 and the guide wheel 502 are used to support the medical pipe 4 .

[0029] A cover plate 101 is rotatably connected to the top of the cooling water tank 1 , a mounting base 2 is fixedly connected to the interior of the cooling water tank 1 , and an ultrasonic sensor 201 is disposed inside the mounting base 2 .

[0030] The display screen 301 is installed inside the control system host 3 , and the display screen 301 is used to monitor the medical pipeline 4 .

[0031] A sensor line 202 is disposed on the top of the mounting base 2 , and an end of the sensor line 202 is mounted on a side wall of the control system host 3 .

[0032] The right-angle plate 5 is fixedly connected inside the cooling water tank 1 , and the right-angle plate 5 is distributed on both sides of the mounting base 2 .

[0033] A slide groove 501 is provided on the side wall of the right angle plate 5, and a threaded rod 504 is slidably connected inside the slide groove 501;

[0034] The guide wheel 502 is internally connected to a shaft 503 for rotation. The shaft 503 is threadedly sleeved on the outer peripheral wall of the threaded rod 504. The threaded rod 504 is used to clamp and fix the shaft 503. By rotating the threaded rod 504, the distance between the shaft 503 and the threaded rod 504 is continuously reduced until the shaft 503 and the threaded rod 504 are clamped and fixed on both sides of the right angle plate 5, the guide wheel 502 can be fixed.

[0035] The guide wheel 502 can stably convey the medical tube 4 to the ultrasonic sensor 201 for detection.

[0036] The medical tube 4 is slidably connected to the side wall of the guide wheel 502, and the end of the medical tube 4 passes through the side wall of the mounting base 2 and the ultrasonic sensor 201 in sequence. When the medical tube 4 passes through the inside of the ultrasonic sensor 201, the ultrasonic pulse emitted by the probe on the ultrasonic sensor 201 reaches the material interface through the medical tube 4, and the pulse is reflected back to the probe to determine the wall thickness of the medical tube 4 by accurately measuring the propagation time of the ultrasonic wave in the material, and then feed back to the control system host 3 through the sensor line 202. The control system host 3 will convert the signal into the required wall thickness value, and can set the monitoring range, which can be displayed on the display screen 301 to achieve real-time monitoring.

[0037] When the utility model is in use, the guide wheel 502 is first slid up and down to the required position, and the threaded rod 504 is rotated to continuously reduce the distance with the shaft rod 503, until the shaft rod 503 and the threaded rod 504 are clamped and fixed on both sides of the right-angle plate 5, and the guide wheel 502 is fixed. Then, the medical pipe 4 produced by extrusion is slid on the guide wheel 502 for transmission. At the same time, the medical pipe 4 will pass through the mounting base 2 and the ultrasonic sensor 201 in sequence. At this time, the ultrasonic pulse emitted by the probe on the ultrasonic sensor 201 will reach the material interface through the medical pipe 4, and the pulse will be reflected back to the probe to determine the wall thickness of the medical pipe 4 by accurately measuring the propagation time of the ultrasonic wave in the material, and the wall thickness of the medical pipe 4 will be determined, and the wall thickness of the medical pipe 4 will be fed back to the control system host 3 through the sensor line 202. The control system host 3 will convert the signal into the required wall thickness value, and the monitoring range can be set. It can be displayed on the display screen 301, so that the wall thickness of the medical pipe 4 can be monitored in real time.

[0038] In summary, compared with the prior art, the present invention has the following beneficial effects: by arranging an ultrasonic sensor 201 inside the cooling water trough 1, and arranging a control system host 3 and a display screen 301 on the side of the cooling water trough 1, when the extruded medical tube 4 passes through the ultrasonic sensor 201, the ultrasonic sensor 201 will detect its thickness, and provide real-time feedback to the control system host 3 and the display screen 301 for monitoring, and an alarm will be issued in time when the wall thickness exceeds the tolerance, thereby reducing batch scrapping and lowering the defective product rate. At the same time, by arranging the right-angle plate 5 and the guide wheel 502, the transported medical tube 4 can be stably supported.

[0039] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic detection device for the wall thickness of a drawn tube, comprising a cooling water tank (1) and a medical tube (4) arranged inside the cooling water tank (1), characterized in that: A detection unit and a support unit are arranged inside the cooling water tank (1); The detection unit comprises an ultrasonic sensor (201) arranged inside the cooling water tank (1), the ultrasonic sensor (201) being used to detect the medical pipe (4), and a control system host (3) and a display screen (301) for feedback information are arranged outside the cooling water tank (1); The support unit comprises a right-angle plate (5) and a guide wheel (502) arranged inside the cooling water tank (1); the right-angle plate (5) and the guide wheel (502) are used to support the medical pipeline (4).

2. The automatic detection device for drawn tube wall thickness according to claim 1, characterized in that: The top of the cooling water trough (1) is rotatably connected to a cover plate (101), the interior of the cooling water trough (1) is fixedly connected to a mounting base (2), and the ultrasonic sensor (201) is arranged inside the mounting base (2).

3. The automatic detection device for drawn tube wall thickness according to claim 1, characterized in that: The display screen (301) is installed inside the control system host (3), and the display screen (301) is used to monitor the medical pipeline (4).

4. The automatic detection device for drawn tube wall thickness according to claim 2, characterized in that: A sensor line (202) is arranged on the top of the mounting base (2), and an end of the sensor line (202) is mounted on a side wall of the control system host (3).

5. The automatic detection device for drawn tube wall thickness according to claim 1, characterized in that: The right-angle plates (5) are fixedly connected inside the cooling water tank (1), and the right-angle plates (5) are distributed on both sides of the mounting base (2).

6. The automatic detection device for drawn tube wall thickness according to claim 1, characterized in that: A sliding groove (501) is provided on the side wall of the right-angle plate (5), and a threaded rod (504) is slidably connected inside the sliding groove (501); The guide wheel (502) is rotatably connected to a shaft rod (503) inside, and the shaft rod (503) is threadedly sleeved on the outer peripheral wall of a threaded rod (504), and the threaded rod (504) is used to clamp and fix the shaft rod (503).

7. The automatic detection device for drawn tube wall thickness according to claim 1, characterized in that: The medical tube (4) is slidably connected to the side wall of the guide wheel (502), and the end of the medical tube (4) passes through the side wall of the mounting base (2) and the ultrasonic sensor (201) in sequence.

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