Detection device for missing labeling of blood collection tube middle box

Abstract

The utility model discloses a missing labeling detection device for a blood collection tube middle box, and belongs to the technical field of medical instrument packaging equipment. The device comprises a conveying mechanism, a position sensor used for detecting the position of the blood collection tube middle box and a color detector used for detecting the label of the blood collection tube middle box. The position sensor and the color detector are both aligned with a conveying belt of the conveying mechanism, and the position sensor is electrically connected with the color detector. And when the blood collection tube middle box reaches the sensing area of the position sensor, the color detector is started and detects the blood collection tube middle box. Through cooperation of the position sensor and the color detector, non-contact type labeling missing detection is achieved, complex working conditions can be dealt with, the problem of mistaken touch starting caused by interference of background colors and illumination changes is solved, the misjudgment rate is reduced, and the detection efficiency and the detection effect are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device packaging equipment technology, and in particular to a device for detecting label leakage in blood collection tube boxes. Background Technology

[0002] In the automated labeling process of blood collection tube boxes, missing labels are a common quality problem. To solve this problem, existing technologies usually rely on manual inspection, mechanical tactile inspection, or traditional photoelectric sensor inspection. Among them, manual inspection is inefficient and has a high rate of missed detection, and cannot be adapted to automated production lines; mechanical tactile inspection requires physical contact with the label, which is prone to wear and has strict requirements on label position accuracy, resulting in low label inspection efficiency; traditional photoelectric sensor inspection is easily affected by background color and lighting changes, has a high false judgment rate, and is difficult to deal with complex working conditions (such as label / film reflection and color difference of the inner box cap). Utility Model Content

[0003] This invention provides a device for detecting missing labels in blood collection tube boxes, aiming to solve the problems of low efficiency and poor effectiveness in the detection of missing labels in the prior art.

[0004] This utility model provides a device for detecting missing labels on blood collection tube boxes, including a conveying mechanism, a position sensor for detecting the position of the blood collection tube box, and a color detector for detecting the label on the blood collection tube box.

[0005] Both the position sensor and the color detector are aligned with the conveyor belt of the conveying mechanism, and the position sensor and the color detector are electrically connected; the position sensor is used to generate a start signal when it senses the blood collection tube box; the color detector is used to detect the blood collection tube box when it receives the start signal.

[0006] In one embodiment, the position sensor and the color detector are arranged sequentially along the conveying direction of the conveying mechanism.

[0007] In one embodiment, the position sensor is located on the side of the conveying mechanism, and the color detector is located above the conveying mechanism.

[0008] In one embodiment, a reflector is also connected to the conveying mechanism, and the reflector is arranged opposite to the position sensor on both sides of the conveying mechanism.

[0009] In one embodiment, the detection ray of the color detector is perpendicular to the conveying axis of the conveying mechanism.

[0010] In one embodiment, the blood collection tube box leakage label detection device further includes an adjustment frame;

[0011] The adjusting frame includes a connecting vertical rod, a connecting horizontal rod, a first locking element, and a second locking element;

[0012] The connecting vertical rod is connected to the side wall of the conveying mechanism;

[0013] The connecting crossbar is located above the conveying mechanism. The connecting crossbar and the connecting vertical bar are connected by the first locking member. The locking or releasing of the first locking member is used to make the connecting crossbar and the connecting vertical bar securely or movably connected.

[0014] The second locking member is connected to the connecting crossbar, and the connecting crossbar is connected to the color detector through the second locking member. Locking or releasing the second locking member is used to make the connecting crossbar and the color detector securely or movably connected.

[0015] In one embodiment, the blood collection tube box leakage label detection device further includes a controller;

[0016] The controller is electrically connected to the color detector;

[0017] The controller is used to receive the signal from the color detector and generate information about missing tags in the blood collection tube box based on the signal from the color detector.

[0018] In one embodiment, the blood collection tube box leakage label detection device further includes an alarm;

[0019] The alarm is electrically connected to the controller, and the alarm is used to send an alarm signal when it receives information about a missing tag in the blood collection tube box.

[0020] In one embodiment, the controller is also electrically connected to the delivery mechanism, and the controller is also configured to control the delivery mechanism to stop when it receives information that a tag is missing from the blood collection tube box.

[0021] In one embodiment, the position sensor is a photoelectric sensor.

[0022] In one embodiment, the color detector is a color sensor.

[0023] As can be seen from the above technical solutions, this utility model has the following advantages:

[0024] This embodiment provides a device for detecting missing labels on blood collection tube boxes. Since both the position sensor and the color detector are aligned with the conveyor belt of the conveying mechanism, and are electrically connected, the position sensor triggers the color detector to detect the blood collection tube box when it reaches the sensing area of ​​the position sensor. Therefore, the color detector is only activated when the position sensor detects the blood collection tube box has reached its position, avoiding the problem of traditional detectors being accidentally activated due to background color and lighting changes during long standby periods, thus reducing the false alarm rate. Furthermore, by replacing the traditional photoelectric sensor with a color detector, the color detector can detect specific colors, reducing interference from background color and lighting changes, and can handle complex working conditions. When faced with label / film reflections, the color detector can detect using a specific wavelength of light source, reducing reflective interference. When faced with color differences in the cap of the blood collection tube, the color detector can accurately identify the color differences, thereby accurately determining whether the label on the blood collection tube box is missing. Attached Figure Description

[0025] 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.

[0026] Figure 1 A schematic diagram of the overall structure of a blood collection tube leakage label detection device provided in this embodiment of the utility model. Figure 1 ;

[0027] Figure 2 A schematic diagram of the overall structure of a blood collection tube leakage label detection device provided in this embodiment of the utility model. Figure 2 ;

[0028] Figure 3 This is a partially enlarged structural schematic diagram provided for an embodiment of the present utility model.

[0029] Figure label:

[0030] 1. Conveying mechanism; 2. Position sensor; 3. Color detector; 4. Adjusting frame; 40. Connecting vertical rod; 41. Connecting horizontal rod; 42. First locking element; 43. Second locking element; 5. Reflector; a. Detection laser; b. Blood collection tube box. Detailed Implementation

[0031] In existing technologies, the following methods are mainly relied upon for detection: manual inspection, which is inefficient, has a high rate of missed detection, and cannot be adapted to automated production lines; vision systems, which are costly, require high-resolution cameras and AI algorithms (Artificial Intelligence), and are complex to deploy and maintain; mechanical tactile detection, which involves physical contact with the label, is prone to wear and has stringent requirements for label positional accuracy; and traditional photoelectric sensor detection, which is easily affected by background color and lighting changes, has a high false judgment rate, and is difficult to handle complex working conditions (such as label / film reflection, color differences between the inner box and the cap). However, each of the above technologies suffers from low efficiency, poor effect, and poor economy in missing label detection.

[0032] This utility model provides a device for detecting missing labels in blood collection tube boxes, which solves the technical problems of low efficiency and poor effect of missing label detection in the prior art, thereby improving the economic practicality in production.

[0033] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below 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 skilled in the art without creative effort are within the scope of protection of the present utility model.

[0034] Please see Figures 1 to 3 The present invention provides a device for detecting missing labels in blood collection tube boxes, including a conveying mechanism 1, a position sensor 2 for detecting the position of blood collection tube box b, and a color detector 3 for detecting the label of blood collection tube box b.

[0035] Both position sensor 2 and color detector 3 are aligned with the conveyor belt of conveying mechanism 1, and position sensor 2 and color detector 3 are electrically connected; position sensor 2 is used to generate a start signal when it senses the blood collection tube box b; color detector 3 is used to detect the blood collection tube box b when it receives the start signal.

[0036] In the operation of this embodiment, the blood collection tube box b is placed on the conveyor belt of the conveying mechanism 1. When the blood collection tube box b is conveyed to the sensing area of ​​the position sensor 2, the position sensor 2 will send a start signal to the color detector 3 when it senses the blood collection tube box b. The color sensor receives the start signal, starts up and reads the label signal. The color detector 3 will detect whether there is a missing label on the blood collection tube box b, thereby completing the detection.

[0037] When position sensor 2 detects the blood collection tube box b, position sensor 2 outputs a high-level signal as a start signal. That is, position sensor 2 outputs a start signal to color detector 3, and color detector 3 receives the start signal to perform detection.

[0038] The advantages of this embodiment are as follows: First, it has high detection efficiency. This embodiment achieves non-contact label detection through the coordinated operation of the position sensor 2 and the color detector 3, avoiding the problems of low efficiency, high false negative rate, easy wear and tear, and stringent requirements for label position accuracy associated with traditional manual or mechanical tactile detection, thus effectively improving production efficiency. Second, it has good detection performance. The color detector 3 only activates detection when the position sensor 2 detects that the blood collection tube box b has reached its position, avoiding the problem of the detector being mistakenly activated due to background color or lighting changes during long-term standby, reducing the false judgment rate. Furthermore, by replacing the traditional photoelectric sensor... Color detector 3 is capable of handling complex working conditions. When faced with label / film reflections, color detector 3 can use a specific wavelength light source for detection to reduce reflection interference. When faced with color differences in the inner box cap, color detector 3 can accurately identify color differences, thereby accurately determining whether the label in the blood collection tube inner box b is missing. After research, the photoelectric positioning accuracy is ±0.2mm, and the color detection false judgment rate is ≤0.5%, effectively improving product quality. Thirdly, it is convenient and economical to maintain. This embodiment achieves low-cost maintenance through the cooperation of two sensors. The hardware cost is less than 1 / 6 of that of the vision system, and it supports rapid model changeover.

[0039] In one specific embodiment, such as Figures 1 to 3 As shown, a feasible arrangement of position sensor 2 and color detector 3 is further provided. Along the conveying direction of conveying mechanism 1, position sensor 2 and color detector 3 are arranged sequentially. Therefore, in the direction of conveying mechanism 1, the position of position sensor 2 will be closer to the conveyed blood collection tube box b than the position of color detector 3. Position sensor 2 will detect and react before color detector 3. That is, position sensor 2 will detect the position of blood collection tube box b first, and then color detector 3 will start to detect the label on blood collection tube box b. In specific implementation, position sensor 2 detects first and color detector 3 detects later, which can ensure that color detector 3 has enough time to fully detect the label on blood collection tube box b.

[0040] In one embodiment, such as Figures 1 to 3As shown, position sensor 2 is located on the side of the conveyor belt. The detection part of position sensor 2 can directly detect the side of the conveyor belt. When a blood collection tube box b passes through the sensing area of ​​position sensor 2 on the side, position sensor 2 can directly detect it. Color detector 3 is located above the conveyor belt. Since the labels of blood collection tube boxes b are all printed on the upper surface, color detector 3 can effectively detect the labels on the upper surface of blood collection tube boxes b.

[0041] In this embodiment, as Figures 1 to 3 As shown, a reflector plate 5 is also connected to the conveyor mechanism 1. The reflector plate 5 and the position sensor 2 are arranged on opposite sides of the conveyor belt. The position sensor 2 is mounted on the side wall of the conveyor mechanism 1 by an L-shaped mounting arm, so that the position sensor 2 can be located on the side of the conveyor belt. The reflector plate 5 can reflect the light of the position sensor 2 to complete the sensing detection.

[0042] Specifically, position sensor 2 is a diffuse reflection photoelectric sensor. A diffuse reflection photoelectric sensor is a photoelectric sensor that determines the existence or position of an object by detecting the light signal reflected from the surface of the object. It can directly use the reflected light from the surface of the object being measured for detection and is suitable for various industrial and daily scenarios.

[0043] In this embodiment, as Figures 1 to 3As shown, the color detector 3 is mounted above the conveyor belt via an adjusting frame 4. The adjusting frame 4 includes two connecting vertical rods 40, a connecting horizontal rod 41, four first locking elements 42, and four second locking elements 43. The two connecting vertical rods 40 are located on opposite sides of the conveyor belt of the conveying mechanism 1. The two connecting vertical rods 40 are respectively fixedly connected to the side walls of the conveying mechanism 1 via different fixed horizontal rods. There are also first locking elements 42 between the connecting vertical rods 40 and the fixed horizontal rods. The locking or loosening of the first locking elements 42 is used to fix the... The horizontal bar and the connecting vertical bar 40 are either securely connected or movably connected. For example, when the first locking member 42 is loosened, the connecting vertical bar 40 can be moved up and down, changing the relative position of the connecting vertical bar 40 and the fixed horizontal bar. When locked again, the connecting vertical bar 40 will be securely connected to the fixed horizontal bar. The connecting horizontal bar 41 is located above the conveyor belt. The connecting horizontal bar 41 and the two connecting vertical bars 40 are connected by the first locking member 42. The locking or loosening of the first locking member 42 is used to securely connect the connecting horizontal bar 41 and the connecting vertical bar 40. The connection is movable; for example, when the first locking member 42 is loosened, the connecting vertical rod 40 can be moved up and down, changing the relative position of the connecting vertical rod 40 and the connecting horizontal rod 41, thereby adjusting the vertical position. When locked again, the connecting vertical rod 40 will be securely connected to the connecting horizontal rod 41. The second locking member 43 is connected to the connecting horizontal rod 41. The second locking member 43 is connected to the connecting vertical rod 40 through the first locking member 42. The second locking member 43 is fixedly connected to the color detector 3. The locking or loosening of the second locking member 43 is achieved by... To ensure that the connecting crossbar 41 is securely or movably connected to the color detector 3, for example, when the second locking member 43 is loosened, the color detector 3 can be moved left or right to change the relative position between the color detector 3 and the connecting crossbar 41, thereby adjusting the horizontal position. When locked, the connecting vertical bar 40 will be securely connected to the connecting crossbar 41. In specific implementation, the color detector 3 achieves vertical and horizontal position adjustment through the connecting vertical bar 40, the connecting crossbar 41, the first locking member 42, and the second locking member 43.

[0044] Specifically, the color detector 3 is a color sensor, and the first locking member 42 is a locking block with a vertical through hole and a horizontal through hole. The vertical through hole and the horizontal through hole are perpendicular to each other. The vertical through hole is used to install the connecting vertical rod 40, and the horizontal through hole is used to install the connecting horizontal rod 41. Both the walls of the vertical through hole and the walls of the horizontal through hole have gaps. Threaded through holes are provided on both sides of the gaps. Bolts can be inserted into the threaded through holes and tightened or loosened by nuts, thereby locking or loosening the first locking member 42. The second locking member 43 has the same structure as the first locking member 42, but its purpose is different. That is, the two through holes of the second locking member 43 are used to install the connecting horizontal rod 41 and the connecting rod of the color sensor, respectively.

[0045] In one embodiment, to improve the detection accuracy of the color detector 3, the detection ray of the color detector 3 is perpendicular to the conveyor axis of the conveyor belt, i.e., as shown... Figure 2 As shown, the detection laser a of the color sensor forms a 90° incident angle with the label area. In specific implementation, the color detector 3 is vertically locked by the angle of the second locking member 43, and the color detector 3 can be vertically oriented toward the label of the blood collection tube box b, thereby reducing detection error.

[0046] In one specific embodiment, to improve the level of automation, the blood collection tube box label leakage detection device further includes a PLC controller (Programmable Logic Controller); the PLC controller is electrically connected to both the position sensor 2 and the color detector 3; the controller is used to receive the signal from the color detector 3 and generate label leakage information for the blood collection tube box based on the signal from the color detector 3, that is, the PLC controller compares the signal from the color detector 3 with a built-in preset signal. The PLC controller has a built-in comparison module and a storage module. When a comparison is required, the comparison module compares the preset voltage signal stored in the storage module with the voltage signal from the color detector 3 and outputs the corresponding high and low levels to determine whether the label is missing.

[0047] The PLC controller is also used to receive the trigger signal from the position sensor 2 and send the trigger signal to the color detector 3 to start detection.

[0048] It should be noted that the circuit of the comparator module is readily known to those skilled in the art, and they can select a suitable comparator circuit as needed, which will not be elaborated upon here.

[0049] In one embodiment, the blood collection tube box label leakage detection device further includes an alarm; the alarm is electrically connected to the PLC controller and connected to the leakage circuit. The alarm is used to send an alarm signal when a label leakage is detected in the blood collection tube box b. Specifically, the alarm can be an audible and visual alarm.

[0050] In one embodiment, to reduce resource waste, the controller is also electrically connected to the conveying mechanism 1. The controller is also used to control the conveying mechanism 1 to stop when a missing label is detected in the blood collection tube box b. Specifically, when a missing label is detected in the blood collection tube box b, the controller controls the conveying mechanism 1 to stop. When a missing label is detected in the blood collection tube box b, the controller controls the conveying mechanism 1 to resume conveying, thereby avoiding unnecessary waste caused by the conveying mechanism 1 transporting blood collection tube boxes b without labels, reducing resource waste and improving product quality.

[0051] Among them, the instant stop protection has a response time of ≤0.1 seconds from detection of chain plate stoppage.

[0052] After adopting the above controller, when the position sensor 2 detects that the middle box has entered the sensing area, it triggers the color sensor to read the signal of the label area. The PLC controller compares the signal according to the preset program. If the comparison result is abnormal, the power supply circuit of the conveying mechanism 1 is cut off through the PLC controller, and the sound and light alarm module is activated at the same time.

[0053] In one specific embodiment, such as Figures 1 to 3 As shown, a feasible structure for the conveying mechanism 1 is further provided. The conveying mechanism 1 is a chain plate conveyor, which includes a chain plate guide rail, a chain, a chain plate, and a drive mechanism. The drive mechanism drives the chain and chain plate in the chain plate guide rail to transport the blood collection tube box b. The position sensor 2 and the color detector 3 are both installed and fixed on the outer wall of the chain plate guide rail, thereby fixing the position sensor 2 and the color detector 3.

[0054] In one embodiment, in order to achieve the automatic rejection function, the conveying mechanism 1 also includes a rejection component, which includes a rejection telescopic head and a rejection motor. The rejection motor is mounted on the chain plate guide rail. The rejection telescopic head is aligned with the chain and the chain plate. When it is detected that the label of the blood collection tube box b is missing, the rejection telescopic head extends and retracts to push out the blood collection tube box b without the label and reject it.

[0055] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between apparatuses or units, and may be electrical, mechanical, or other forms.

[0056] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs. The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably.

[0057] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

[0058] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0059] Finally, it should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A device for detecting label leakage in blood collection tube boxes, characterized in that, Includes a delivery mechanism, a position sensor for detecting the position of the blood collection tube box, and a color detector for detecting the label on the blood collection tube box; Both the position sensor and the color detector are aligned with the conveyor belt of the conveying mechanism, and the position sensor and the color detector are electrically connected; the position sensor is used to generate a start signal when it senses the blood collection tube box; the color detector is used to detect the blood collection tube box when it receives the start signal.

2. The device for detecting label leakage in blood collection tubes according to claim 1, characterized in that, The position sensor and the color detector are arranged sequentially along the conveying direction of the conveying mechanism.

3. The device for detecting label leakage in blood collection tubes according to claim 1, characterized in that, The position sensor is located on the side of the conveying mechanism, and the color detector is located above the conveying mechanism.

4. The device for detecting label leakage in blood collection tubes according to claim 3, characterized in that, A reflector is also connected to the conveying mechanism, and the reflector and the position sensor are arranged opposite to each other on both sides of the conveying mechanism.

5. The device for detecting label leakage in blood collection tubes according to claim 3, characterized in that, The detection ray of the color detector is perpendicular to the conveying axis of the conveying mechanism.

6. The device for detecting label leakage in blood collection tubes according to claim 3, characterized in that, The device for detecting missing labels in blood collection tube boxes also includes an adjustment frame; The adjusting frame includes a connecting vertical rod, a connecting horizontal rod, a first locking element, and a second locking element; The connecting vertical rod is connected to the side wall of the conveying mechanism; The connecting crossbar is located above the conveying mechanism. The connecting crossbar and the connecting vertical bar are connected by the first locking member. The locking or releasing of the first locking member is used to make the connecting crossbar and the connecting vertical bar securely or movably connected. The second locking member is connected to the connecting crossbar, and the connecting crossbar is connected to the color detector through the second locking member. Locking or releasing the second locking member is used to make the connecting crossbar and the color detector securely or movably connected.

7. The device for detecting label leakage in blood collection tubes according to claim 1, characterized in that, The device for detecting missing labels in blood collection tube boxes also includes a controller; The controller is electrically connected to the color detector; The controller is used to receive the signal from the color detector and generate information about missing tags in the blood collection tube box based on the signal from the color detector.

8. The device for detecting label leakage in blood collection tubes according to claim 7, characterized in that, The device for detecting missing labels in blood collection tube boxes also includes an alarm. The alarm is electrically connected to the controller, and the alarm is used to send an alarm signal when it receives information about a missing tag in the blood collection tube box.

9. The device for detecting label leakage in blood collection tubes according to claim 7, characterized in that, The controller is also electrically connected to the conveying mechanism, and the controller is also used to control the conveying mechanism to stop when it receives information that the tag in the blood collection tube box is missing.

10. The device for detecting label leakage in blood collection tubes according to any one of claims 1 to 9, characterized in that, The position sensor is a photoelectric sensor, and the color detector is a color sensor.

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