Automatic filling and sealing integrated equipment for blood collection tubes

Abstract

The utility model discloses a kind of automatic filling and sealing integration equipment of blood collection tube, belong to medical instrument production equipment technical field, and its technical scheme main points include rack, the right side of the rack is provided with PLC controller, and the present application is by setting synchronous conveying mechanism, mounting rail, electric cylinder and fixed measurement filling mechanism, synchronous conveying mechanism variable frequency motor can drive spindle drive conveyor belt operation, cooperate speed encoder is connected with secondary shaft by coupling, can real-time detect conveyor belt running speed, solve the problem that current equipment lacks real-time detection conveying speed, when conveyor belt appears speed fluctuation due to pipe body jam, fixed pipe clamping base abrasion, can rely on speed encoder feedback data adjustment variable frequency motor output, avoid fixed measurement filling mechanism and conveying rhythm misregistration, while fixed measurement filling mechanism is slidably arranged on mounting rail, electric cylinder of the rack two sides can drive fixed measurement filling mechanism along mounting rail fine adjustment position.

Description

Technical Field

[0001] This utility model relates to the field of medical device manufacturing equipment technology, and in particular to an integrated automatic filling and sealing device for blood collection tubes. Background Technology

[0002] The automated blood collection tube filling and sealing equipment is a specialized piece of equipment used in the medical device manufacturing industry for the mass production of blood collection tubes. Its core function is to accurately fill 1mL-10mL glass or plastic blood collection tubes with reagents such as anticoagulants and coagulants, as well as seal the tube openings after filling. By integrating tube delivery, reagent metering, and subsequent tube sealing processes, it achieves continuous processing of blood collection tubes from "empty tubes" to "finished tubes". At the same time, by optimizing the linkage logic between delivery and filling, it reduces problems such as reagent spillage and tube misalignment, ensuring filling accuracy and production efficiency, and ultimately meeting the needs of large-scale, high-quality production of blood collection tubes for clinical testing.

[0003] However, existing automated blood collection tube filling equipment struggles to meet the demands of large-scale, high-precision production in actual operation. The core issue lies in the "insufficient dynamic adaptability of tube delivery and filling": as a core consumable for blood sample collection and storage, the production quality of blood collection tubes directly depends on "reagent filling accuracy" and "tube delivery stability." A filling volume error exceeding ±0.1mL can lead to abnormal blood sample dilution or coagulation, affecting clinical test results. Current equipment generally employs a control logic of "fixed-speed conveyor belt + timed start / stop filling components," which has significant shortcomings. On the one hand, the conveyor belt is prone to speed fluctuations due to tube jamming and wear of the fixed tube holder, but there is a lack of a structure to detect the conveying speed in real time and dynamically adjust the conveying rhythm, which leads to misalignment between the filling components and the conveying rhythm, causing needle misalignment and reagent spillage, which wastes raw materials and requires manual shutdown for cleaning. On the other hand, the tube conveying path deviation relies on a single detection method and lacks an adaptation structure that can capture the deviation in real time and drive the filling mechanism to make fine adjustments. Even a small deviation will cause filling accuracy errors, making it impossible to guarantee the accuracy of the filling position and making it difficult to meet the strict clinical requirements for the production quality of blood collection tubes.

[0004] Therefore, an integrated automatic blood collection tube filling and sealing device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an integrated automatic blood collection tube filling and sealing device that addresses the shortcomings of existing automatic blood collection tube filling and sealing equipment in meeting the demands of large-scale, high-precision production. The core issue lies in the insufficient dynamic adaptability of tube delivery and filling: as a core consumable for blood sample collection and storage, the production quality of blood collection tubes directly depends on the accuracy of reagent filling and the stability of tube delivery. An error in filling volume exceeding ±0.1mL can lead to abnormal blood sample dilution or coagulation, affecting clinical test results. Current equipment generally employs a fixed-speed conveyor belt combined with a timed start / stop filling unit. The control logic of the "piece" has obvious defects. On the one hand, the conveyor belt is prone to speed fluctuations due to tube jamming and wear of the fixed tube holder, but there is no structure to detect the conveying speed in real time and dynamically adjust the conveying rhythm. This leads to misalignment between the filling components and the conveying rhythm, causing needle misalignment and reagent spillage, which wastes raw materials and requires manual shutdown for cleaning. On the other hand, the tube conveying path deviation relies on a single detection method and lacks an adaptation structure that can capture the deviation in real time and drive the filling mechanism to make fine adjustments. Even a small deviation will cause filling accuracy errors, making it impossible to guarantee the accuracy of the filling position and failing to meet the strict requirements of clinical blood collection tube production quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated automatic blood collection tube filling and sealing device, comprising a frame, a PLC controller on the right side of the frame, a synchronous conveying mechanism on the top side inside the frame, mounting rails on both sides of the top of the frame, electric cylinders bolted to the front sides of both sides of the frame, a fixed-measurement filling mechanism on the top of the mounting rail, and the front side of the fixed-measurement filling mechanism being fixedly connected to the output end of the electric cylinder;

[0007] The synchronous conveying mechanism includes a variable frequency motor bolted to the right side of the frame. A main shaft and a secondary shaft are respectively arranged on the rear and front sides inside the frame. The right side of the main shaft is fixedly connected to the output end of the variable frequency motor. A conveyor belt is sleeved on the outside of the main shaft and the secondary shaft. A fixed tube holder is provided on the surface of the conveyor belt. A bracket is bolted to the right side of the frame. A speed encoder is arranged inside the bracket. A coupling is provided at the output end of the speed encoder. The left side of the coupling is fixedly connected to the right side of the secondary shaft.

[0008] Preferably, the fixed-measurement filling mechanism includes a mounting frame slidably connected to the top of the mounting rail, the front side of the mounting frame being fixedly connected to the telescopic end of the electric cylinder, and a laser displacement sensor being provided on the front side of the bottom of the mounting frame, the laser displacement sensor being electrically connected to the PLC controller.

[0009] Preferably, a liquid storage tank is provided on the rear side of the top of the mounting bracket, and a metering pump is provided on the rear side of the top of the mounting bracket, the metering pump being electrically connected to the PLC controller.

[0010] Preferably, the output end of the metering pump is connected to an elastic infusion tube, an electric push rod is bolted to the front side of the top of the mounting frame, the telescopic end of the electric push rod passes through the top of the mounting frame, a suspension plate is fixedly connected to the telescopic end of the electric push rod, a flow valve is connected to the bottom of the elastic infusion tube, a filling needle is connected to the bottom of the flow valve, the filling needle is embedded inside the suspension plate, and the filling needle is located at the top of the conveyor belt.

[0011] Preferably, the front and rear sides of the top two sides of the mounting bracket are provided with locking structures. The locking structures include positioning grooves opened on the top of the mounting rail. Electromagnetic locks are bolted to the front and rear sides of the top two sides of the mounting bracket. The locking tongue end of the electromagnetic lock penetrates through the top of the mounting bracket.

[0012] Preferably, the bolt end of the electromagnetic lock is fixedly connected to an anti-slip pad, which is located inside the positioning groove.

[0013] Preferably, a touch screen is provided on the outside of the PLC controller, and the touch screen is electrically connected to the PLC controller.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This application sets up a synchronous conveying mechanism, an installation rail, an electric cylinder, and a fixed-measurement filling mechanism. In the synchronous conveying mechanism, the variable frequency motor can drive the main shaft to drive the conveyor belt. In conjunction with the speed encoder, it is connected to the secondary shaft through a coupling, which can detect the speed of the conveyor belt in real time. This solves the problem that existing equipment lacks real-time detection of conveying speed. When the conveyor belt speed fluctuates due to tube jamming or wear of the fixed tube holder, the output of the variable frequency motor can be adjusted based on the feedback data of the speed encoder to avoid misalignment between the fixed-measurement filling mechanism and the conveying rhythm. At the same time, the fixed-measurement filling mechanism is slidably set on the installation rail. The electric cylinders on both sides of the frame can drive the fixed-measurement filling mechanism to finely adjust its position along the installation rail. This makes up for the lack of an adaptive adjustment structure when the tube conveying path of the existing equipment deviates. It effectively reduces needle misalignment and reagent spillage, reduces raw material waste and the frequency of manual shutdown for cleaning, and ensures the accuracy of the filling position.

[0016] 2. This application integrates the conveying speed data detected by the speed encoder with the filling status information fed back by the fixed-time filling mechanism by setting up a PLC controller, so as to realize the coordinated control of the variable frequency motor and electric cylinder. This breaks the rigid control logic of the existing equipment of "fixed speed conveyor belt + timed start and stop filling component", and gives the equipment the ability to dynamically adapt to the actual conveying status. This further improves the linkage accuracy of tube conveying and filling processes, ensures that the reagent filling accuracy meets clinical requirements, and meets the needs of large-scale and high-quality production of blood collection tubes. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the automatic blood collection tube filling and sealing integrated device of this utility model;

[0018] Figure 2 This is a structural diagram of the synchronous conveying mechanism of this utility model;

[0019] Figure 3 This is a structural diagram of the electric cylinder of this utility model;

[0020] Figure 4 This is a structural diagram of the fixed-measurement filling mechanism of this utility model;

[0021] Figure 5 This is a structural diagram of the locking structure of this utility model.

[0022] In the diagram: 1. Frame; 2. PLC controller; 3. Synchronous conveying mechanism; 301. Variable frequency motor; 302. Main shaft; 303. Secondary shaft; 304. Conveyor belt; 305. Fixed pipe holder; 306. Bracket; 307. Speed ​​encoder; 308. Coupling; 4. Mounting rail; 5. Electric cylinder; 6. Fixed measurement and filling mechanism; 601. Mounting bracket; 602. Laser displacement sensor; 603. Liquid storage tank; 604. Metering pump; 605. Flexible infusion tube; 606. Electric push rod; 607. Suspension plate; 608. Flow valve; 609. Filling needle; 7. Locking structure; 701. Positioning groove; 702. Electromagnetic lock; 703. Anti-slip pad; 8. Touch screen display. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-5 The present invention provides the following technical solution:

[0025] An integrated automatic blood collection tube filling and sealing device includes a frame 1, a PLC controller 2 is provided on the right side of the frame 1, a synchronous conveying mechanism 3 is provided on the top side inside the frame 1, mounting rails 4 are provided on both sides of the top of the frame 1, electric cylinders 5 are bolted to the front sides of both sides of the frame 1, a fixed measurement filling mechanism 6 is provided on the top of the mounting rails 4, and the front side of the fixed measurement filling mechanism 6 is fixedly connected to the output end of the electric cylinder 5.

[0026] The synchronous conveying mechanism 3 includes a variable frequency motor 301 bolted to the right side of the frame 1. A main shaft 302 and a secondary shaft 303 are respectively arranged on the rear and front sides inside the frame 1. The right side of the main shaft 302 is fixedly connected to the output end of the variable frequency motor 301. A conveyor belt 304 is sleeved on the outside of the main shaft 302 and the secondary shaft 303. A fixed pipe clamp 305 is provided on the surface of the conveyor belt 304. A bracket 306 is bolted to the right side of the frame 1. A speed encoder 307 is arranged inside the bracket 306. A coupling 308 is arranged at the output end of the speed encoder 307. The left side of the coupling 308 is fixedly connected to the right side of the secondary shaft 303.

[0027] In this embodiment: by setting up a frame 1, a PLC controller 2, a synchronous conveying mechanism 3, a mounting rail 4, an electric cylinder 5, and a fixed-measurement filling mechanism 6, the frame 1 serves as the basic load-bearing structure of the equipment, providing a stable installation benchmark for all components such as the PLC controller 2 and the synchronous conveying mechanism 3, ensuring the structural positioning accuracy of each mechanism during operation. After the equipment is started, the synchronous conveying mechanism 3 enters the working state first: the variable frequency motor 301 on the right side of the frame 1 drives the main shaft 302 to rotate, and the main shaft 302 drives the secondary shaft 303 to rotate synchronously through the conveyor belt 304. The fixed tube holder 305 on the surface of the conveyor belt 304 moves cyclically with the belt body to realize the continuous conveying of blood collection tubes. During this process, the frame 1 The speed encoder 307 on the right-side bracket 306 is rigidly connected to the secondary shaft 303 via a coupling 308. The rotational speed of the secondary shaft 303 is directly transmitted to the speed encoder 307, enabling it to convert the conveyor belt 304's running speed data into an electrical signal in real time and transmit it to the PLC controller 2 immediately. This forms a dynamic monitoring system for the conveyor's status. When the PLC controller 2 receives and analyzes the data from the speed encoder 307, if it detects speed fluctuations in the conveyor belt 304 due to pipe jamming or wear on the fixed pipe holder 305, it will immediately trigger the preset control logic, sending an adjustment command to the variable frequency motor 301. By changing the output frequency of the variable frequency motor 301, the rotational speed of the main shaft 302 is precisely adjusted. The speed of the conveyor belt 304 is adjusted to ensure that the conveying rhythm always matches the working frequency of the fixed-measurement filling mechanism 6, thus fundamentally avoiding problems such as needle misalignment and reagent spillage caused by speed misalignment. Simultaneously, the cooperative structure of the mounting rail 4 and electric cylinder 5 plays a crucial adjusting role in addressing potential deviations in the tube conveying path: the fixed-measurement filling mechanism 6 is slidably mounted on two parallel mounting rails 4 at the top of the frame 1, forming a stable lateral adjustment track. When the filling position needs adjustment, the PLC controller 2 sends an action signal to the electric cylinders 5 on both sides of the frame 1. The extension and retraction ends of the electric cylinders 5 drive the fixed-measurement filling mechanism 6 to slide smoothly along the mounting rails 4, achieving precise fine-tuning of the filling position. This adjustment method... Relying on the guiding and limiting of the mounting rail 4 and the precise drive of the electric cylinder 5, the system can quickly compensate for errors caused by tube conveying deviation, ensuring the precise alignment of the filling needle 609 with the blood collection tube opening, and significantly improving filling accuracy. The entire workflow is centered on the PLC controller 2, integrating the detection signal of the speed encoder 307 with the execution actions of the electric cylinder 5 and the frequency conversion motor 301, seamlessly connecting the three key links of "conveying monitoring - speed adjustment - position calibration". This breaks the rigid mode of "fixed speed + timed filling" of existing equipment, and realizes the dynamic adaptation of tube conveying and filling processes. While ensuring continuous operation of the equipment, it effectively improves the accuracy and efficiency of blood collection tube production.

[0028] Specifically, such as Figure 4As shown, the fixed-measurement filling mechanism 6 includes a mounting frame 601 that is slidably connected to the top of the mounting rail 4. The front side of the mounting frame 601 is fixedly connected to the telescopic end of the electric cylinder 5. A laser displacement sensor 602 is provided on the front side of the bottom of the mounting frame 601. The laser displacement sensor 602 is electrically connected to the PLC controller 2.

[0029] Specifically, such as Figure 4 As shown, a liquid storage tank 603 is provided on the rear side of the top of the mounting bracket 601, and a metering pump 604 is provided on the rear side of the top of the mounting bracket 601. The metering pump 604 is electrically connected to the PLC controller 2.

[0030] Specifically, such as Figure 4 As shown, the output end of the metering pump 604 is connected to an elastic infusion tube 605. An electric push rod 606 is bolted to the front side of the top of the mounting bracket 601. The telescopic end of the electric push rod 606 passes through the top of the mounting bracket 601. A suspension plate 607 is fixedly connected to the telescopic end of the electric push rod 606. A flow valve 608 is connected to the bottom of the elastic infusion tube 605. A filling needle 609 is connected to the bottom of the flow valve 608. The filling needle 609 is embedded inside the suspension plate 607 and is located at the top of the conveyor belt 304.

[0031] In this embodiment: a fixed-position filling mechanism 6 is set up, with a mounting frame 601 as the core supporting frame. The mounting frame 601 is slidably connected to the top of the mounting rail 4, and its front side is fixed to the telescopic end of the electric cylinder 5. Under the drive of the electric cylinder 5, the lateral position can be finely adjusted along the mounting rail 4, laying the foundation for subsequent precise filling. When the equipment is running, the laser displacement sensor 602 on the front bottom of the mounting frame 601 first performs real-time position detection on the blood collection tubes on the conveyor belt 304, and transmits the tube position signal to the PLC controller 2. The PLC controller 2 combines the signal to determine whether the blood collection tube has reached the filling position. After the blood collection tube is accurately positioned, the PLC controller 2 sends a signal to the laser displacement sensor 602 on the rear top of the mounting frame 601. The metering pump 604 sends a command to draw a preset dose of reagent from the storage tank 603 and deliver it to the lower part through the flexible infusion tube 605. At the same time, the PLC controller 2 controls the extension and retraction of the electric push rod 606 on the front top of the mounting bracket 601, which drives the suspension plate 607 and the embedded filling needle 609 to rise and fall synchronously. When the filling needle 609 descends to the appropriate position of the tube opening, the flow valve 608 opens, and the reagent is accurately injected into the blood collection tube through the needle. After filling is completed, the electric push rod 606 drives the filling needle 609 to rise again, and the flow valve 608 closes, realizing the automatic connection of "positioning-liquid supply-filling", which not only ensures the accuracy of the filling dose, but also avoids the filling needle 609 from colliding with the tube body or the reagent from overflowing.

[0032] Specifically, such as Figure 5As shown, locking structures 7 are provided on the front and rear sides of the top two sides of the mounting bracket 601. The locking structure 7 includes a positioning groove 701 opened on the top of the mounting rail 4. Electromagnetic locks 702 are bolted to the front and rear sides of the top two sides of the mounting bracket 601. The locking tongue end of the electromagnetic lock 702 penetrates through the top of the mounting bracket 601.

[0033] Specifically, such as Figure 5 As shown, the bolt end of the electromagnetic lock 702 is fixedly connected to an anti-slip pad 703, which is located inside the positioning groove 701.

[0034] In this embodiment: a locking structure 7 is provided, which works in conjunction with the sliding adjustment of the mounting bracket 601 and the mounting rail 4. When the electric cylinder 5 drives the mounting bracket 601 to move along the mounting rail 4 to the preset filling position, the PLC controller 2 sends an energizing command to the electromagnetic locks 702 on both sides of the top of the mounting bracket 601. The locking tongue of the electromagnetic lock 702 extends downward and penetrates the top of the mounting bracket 601, finally embedding into the positioning groove 701 at the top of the mounting rail 4, thereby achieving rigid locking between the mounting bracket 601 and the mounting rail 4 and preventing filling. During the process, the mounting bracket 601 may shift due to equipment vibration or reagent impact, ensuring the relative position of the filling needle 609 and the blood collection tube opening remains stable. At the same time, the anti-slip pad 703 fixed at the end of the locking tongue fits tightly against the inner wall of the positioning groove 701, further increasing frictional resistance and preventing slight slippage after locking. When the position of the mounting bracket 601 needs to be adjusted again, the PLC controller 2 controls the electromagnetic lock 702 to de-energize, the locking tongue retracts, and the mounting bracket 601 can slide along the mounting rail 4 again, balancing "adjustment flexibility" and "operational stability".

[0035] Specifically, such as Figure 1 As shown, a touch screen 8 is provided on the outside of the PLC controller 2, and the touch screen 8 is electrically connected to the PLC controller 2.

[0036] In this embodiment: By setting up a touch screen display 8, which is electrically connected to the PLC controller 2, the core of the human-machine interaction of the equipment is formed. On the one hand, the PLC controller 2 transmits key data during the operation of the equipment (such as the speed of the conveyor belt 304, the filling dosage of the metering pump 604, the detection results of the laser displacement sensor 602, the working status of the electromagnetic lock 702, etc.) to the touch screen display 8 in real time, presenting them in a visual interface. Operators can intuitively grasp the operating status of the equipment and facilitate timely detection of abnormalities. On the other hand, operators can input commands to the PLC controller 2 through the touch screen display 8, such as setting the filling dosage, adjusting the speed of the conveyor belt 304, calibrating the detection benchmark of the laser displacement sensor 602, etc. After the commands are parsed by the PLC controller 2, they are converted into control signals for each actuator (metering pump 604, variable frequency motor 301, electric cylinder 5, etc.), realizing convenient adjustment of equipment parameters. In addition, when the equipment malfunctions (such as insufficient reagent or excessive tube misalignment), the touch screen display 8 will display fault prompts simultaneously, guiding operators to quickly troubleshoot and handle the problem, improving the convenience of equipment operation and maintenance efficiency.

[0037] Working Principle: During the use of the automatic blood collection tube filling and sealing integrated equipment, the frame 1 serves as the basic supporting framework, and the core components are assembled in preset positions: the PLC controller 2 on the right side of the frame 1 serves as the central hub, and the touch screen 8 on the outside is electrically connected to it. The synchronous conveying mechanism 3 on the top side of the frame 1, the mounting rails 4 on both sides of the top, the fixed-measurement filling mechanism 6, and the electric cylinders 5 on both sides work together to form the working system. At the same time, the locking structure 7 on the top of the mounting frame 601, the laser displacement sensor 602 of the fixed-measurement filling mechanism 6, and other components are positioned as needed. After the equipment is started, it runs continuously according to the following process: The operator first inputs parameters to the PLC controller 2 through the touch screen 8, such as setting the filling dosage of the metering pump 604, the target running speed of the conveyor belt 304, and the laser displacement sensor 602. The detection reference and other parameters of the displacement sensor 602 are parsed by the PLC controller 2 and synchronized to each execution component. Then, the synchronous conveying mechanism 3 starts, and the variable frequency motor 301 on the right side of the frame 1 drives the main shaft 302 to rotate. The main shaft 302 drives the secondary shaft 303 on the front side to rotate synchronously through the conveyor belt 304. The tube holder 305 on the surface of the conveyor belt 304 moves cyclically with the belt. The operator puts the empty blood collection tubes into the tube holder 305 one by one. The holder limits the tube body and realizes the continuous conveying of the blood collection tubes. During this process, the speed encoder 307 on the support 306 on the right side of the frame 1 is rigidly connected to the secondary shaft 303 through the coupling 308. The rotation speed of the secondary shaft 303 is transmitted to the speed encoder 307 in real time. The encoder converts the speed data into an electrical signal and transmits it to the PLC controller 303. LC controller 2 continuously monitors the speed of conveyor belt 304. If it detects speed fluctuations caused by tube jamming or wear of the tube holder 305, it immediately sends an adjustment command to the variable frequency motor 301. By changing the output frequency of the variable frequency motor 301, it corrects the speed of the main shaft 302, ensuring that the conveyor belt 304 always runs at the target speed and avoiding conveying rhythm disorder. When the blood collection tube approaches the fixed-point filling mechanism 6 along with the conveyor belt 304, the laser displacement sensor 602 on the front side of the bottom of the mounting frame 601 first detects the position of the tube and transmits the position signal to PLC controller 2. PLC controller 2 combines this signal to determine whether the blood collection tube has reached the filling position. If there is a slight deviation in the tube, PLC controller 2 sends a motion signal to the electric cylinders 5 on both sides of the frame 1. Upon receiving the command, the electric cylinder 5 extends and retracts, causing the mounting bracket 601, which is slidably connected to the top of the mounting rail 4, to make a slight lateral adjustment until the laser displacement sensor 602 detects that the tube is precisely aligned. At this point, the PLC controller 2 energizes the electromagnetic locks 702 on both sides of the top of the mounting bracket 601. The locking tongue of the electromagnetic lock 702 extends downward and penetrates the mounting bracket 601, embedding itself into the positioning groove 701 at the top of the mounting rail 4. The anti-slip pad 703 at the locking tongue tightly adheres to the groove wall, achieving rigid locking of the mounting bracket 601 and preventing displacement due to vibration during filling. Immediately afterwards, the PLC controller 2 sends a working command to the metering pump 604 on the rear side of the top of the mounting bracket 601. The metering pump 604 draws a preset dose of anticoagulant or coagulant from the storage tank 603 and delivers it downward through the elastic infusion tube 605.Simultaneously, PLC controller 2 controls the extension and retraction of the electric push rod 606 on the front top of the mounting bracket 601, causing the suspension plate 607 and the embedded filling needle 609 to descend synchronously. When the filling needle 609 descends to a suitable position above the blood collection tube opening, the electric push rod 606 stops moving, and PLC controller 2 controls the flow valve 608 to open. The reagent is then precisely injected into the tube body through the filling needle 609. After filling is completed, the flow valve 608 closes first, and the electric push rod 606 drives the filling needle 609 to rise, preventing the filling needle 609 from colliding with the tube body or leaking residual reagent. The filled blood collection tube continues to be conveyed backward by the conveyor belt 304. After leaving the working range of the fixed-point filling mechanism 6, it enters the subsequent sealing mechanism of the equipment (such as the heat-sealing mechanism). The sealing mechanism is installed on the rear side of the top of the frame 1 (the existing technology will not be described in detail here). Then, the sealing mechanism seals the blood collection tube opening according to a preset program, ultimately forming a finished tube, which is conveyed to the discharge end by the conveyor belt 304. Operators collect the tubes as needed. Throughout the operation, the touch screen 8 receives key data transmitted from the PLC controller 2 in real time, such as the current filling dosage, the actual speed of the conveyor belt 304, and the working status of the electromagnetic lock 702, presenting it in a visual interface for easy monitoring by operators. If a fault such as tube misalignment occurs, the touch screen 8 immediately displays a fault prompt, and the PLC controller 2 simultaneously pauses the equipment operation. Operators can quickly troubleshoot and resolve the issue based on the prompts, ensuring stable and efficient equipment operation.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated automatic blood collection tube filling and sealing device, comprising a frame (1), characterized in that: A PLC controller (2) is provided on the right side of the frame (1), a synchronous conveying mechanism (3) is provided on the top side inside the frame (1), mounting rails (4) are provided on both sides of the top of the frame (1), electric cylinders (5) are bolted to the front sides of both sides of the frame (1), a fixed measuring filling mechanism (6) is provided on the top of the mounting rail (4), and the front side of the fixed measuring filling mechanism (6) is fixedly connected to the output end of the electric cylinder (5); The conveying mechanism includes a variable frequency motor (301) bolted to the right side of the frame (1). A main shaft (302) and a secondary shaft (303) are respectively provided on the rear and front sides of the frame (1). The right side of the main shaft (302) is fixedly connected to the output end of the variable frequency motor (301). A conveyor belt (304) is sleeved on the outside of the main shaft (302) and the secondary shaft (303). A fixed pipe holder (305) is provided on the surface of the conveyor belt (304). A bracket (306) is bolted to the right side of the frame (1). A speed encoder (307) is provided inside the bracket (306). A coupling (308) is provided at the output end of the speed encoder (307). The left side of the coupling (308) is fixedly connected to the right side of the secondary shaft (303).

2. The automatic blood collection tube filling and sealing integrated device according to claim 1, characterized in that: The fixed-measurement filling mechanism (6) includes a mounting frame (601) slidably connected to the top of the mounting rail (4). The front side of the mounting frame (601) is fixedly connected to the telescopic end of the electric cylinder (5). A laser displacement sensor (602) is provided on the front side of the bottom of the mounting frame (601). The laser displacement sensor (602) is electrically connected to the PLC controller (2).

3. The automatic blood collection tube filling and sealing integrated device according to claim 2, characterized in that: A liquid storage tank (603) is provided on the rear side of the top of the mounting bracket (601), and a metering pump (604) is provided on the rear side of the top of the mounting bracket (601). The metering pump (604) is electrically connected to the PLC controller (2).

4. The automatic blood collection tube filling and sealing integrated device according to claim 3, characterized in that: The output end of the metering pump (604) is connected to an elastic infusion tube (605). An electric push rod (606) is bolted to the front side of the top of the mounting bracket (601). The telescopic end of the electric push rod (606) passes through the top of the mounting bracket (601). A suspension plate (607) is fixedly connected to the telescopic end of the electric push rod (606). A flow valve (608) is connected to the bottom of the elastic infusion tube (605). A filling needle (609) is connected to the bottom of the flow valve (608). The filling needle (609) is embedded inside the suspension plate (607). The filling needle (609) is located at the top of the conveyor belt (304).

5. The automatic blood collection tube filling and sealing integrated device according to claim 2, characterized in that: The mounting bracket (601) is provided with locking structures (7) on the front and rear sides of the top two sides. The locking structure (7) includes a positioning groove (701) opened on the top of the mounting rail (4). Electromagnetic locks (702) are bolted to the front and rear sides of the top two sides of the mounting bracket (601). The locking tongue end of the electromagnetic lock (702) penetrates the top of the mounting bracket (601).

6. The automatic blood collection tube filling and sealing integrated device according to claim 5, characterized in that: The electromagnetic lock (702) has an anti-slip pad (703) fixedly connected to the bolt end, and the anti-slip pad (703) is located inside the positioning groove (701).

7. The automatic blood collection tube filling and sealing integrated device according to claim 1, characterized in that: A touch screen (8) is provided on the outside of the PLC controller (2), and the touch screen (8) is electrically connected to the PLC controller (2).

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