Feeding device of blood transfusion bag filling machine

Abstract

The utility model relates to a blood transfusion bag filling machine feeding device which comprises a vacuumizing mechanism, a feeding frame and a clamping mechanism, the vacuumizing mechanism comprises a mounting plate, a vacuumizing connector and a material suction assembly, and the material suction assembly and the vacuumizing connector are both arranged on the mounting plate; the feeding frame is provided with a support, a tray and a suction cup, the tray is arranged at one end of the support, and the suction cup used for sucking blood transfusion bags is arranged on the face, facing the suction assembly, of the support. The clamping mechanism comprises a fixed clamping block and a movable clamping block, the fixed clamping block is arranged at the end, away from the tray, of the support, the movable clamping block and the fixed clamping block are arranged correspondingly, and the movable clamping block can move relative to the fixed clamping block. Through cooperative work of all the mechanisms, automatic operation of the feeding process of the blood transfusion bag filling machine is achieved, continuity and high efficiency of the whole operation process are guaranteed, time and errors of manual operation are reduced, production efficiency and product quality are improved, and meanwhile labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical device manufacturing, in particular to a feeding device of a blood transfusion bag filling machine. Background Art

[0002] In the high-end medical machinery segment, blood transfusion bag handling plays a crucial role in ensuring the safe storage and efficient delivery of blood products. Currently, conventional methods for loading blood transfusion bags in bunches have numerous limitations.

[0003] Currently, common blood transfusion bag loading methods are divided into two modes: manual and semi-automatic. In the manual loading mode, the operator needs to align the exhaust pipe of one of the blood transfusion bags in a string with the vacuum equipment. The entire process is highly dependent on manual operation, which is not only time-consuming and labor-intensive, but also difficult to maintain a stable vacuum effect. The vacuuming quality completed by different batches and different operators varies significantly. Although the semi-automatic mode introduces some automation processes to achieve automatic clamping of materials, the vacuuming process still relies on manual operation. Although the semi-automatic mode reduces the manual burden to a certain extent, it does not eradicate the bottleneck of manual vacuuming. Since the vacuuming operation requires precise control of duration and strength, manual operation inevitably has differences, resulting in uneven vacuum levels, affecting the final product quality of the blood transfusion bag. In addition, the frequent switching between manual and automated processes is not smooth, which slows down the overall production rhythm.

[0004] In view of the above difficulties, the market is in urgent need of an innovative loading device for bunches of blood transfusion bags. Utility Model Content

[0005] To this end, the technical problem to be solved by the present invention is to overcome the technical defects of the existing technology and propose a feeding device for a blood transfusion bag filling machine, which integrates a vacuum mechanism, a feeding frame and a clamping mechanism. Through the coordinated work of various mechanisms, the automatic operation of the feeding process of the blood transfusion bag filling machine is realized, ensuring the continuity and efficiency of the entire operation process, reducing the time and errors of manual operation, improving production efficiency and product quality, and reducing labor costs.

[0006] In order to solve the above technical problems, the utility model provides a feeding device for a blood transfusion bag filling machine, comprising:

[0007] A vacuum pumping mechanism, comprising a mounting plate movable in the Y and Z directions, a vacuum pumping connector, and a material suction assembly, wherein the material suction assembly and the vacuum pumping connector are both disposed on the mounting plate and are used to perform suction fixation and vacuum pumping operations on the blood transfusion bag, respectively;

[0008] A feeding frame, comprising a bracket, a tray and a suction cup, wherein one end of the bracket is provided with a tray, and a side of the bracket facing the suction assembly is provided with a suction cup for adsorbing a blood transfusion bag;

[0009] The clamping mechanism includes a fixed clamping block and a movable clamping block. The fixed clamping block is arranged at the end of the bracket away from the tray. The movable clamping block is arranged corresponding to the fixed clamping block, and the movable clamping block can move relative to the fixed clamping block to clamp the air extraction tube of the blood transfusion bag.

[0010] In one embodiment, a frame is further included, and the vacuum mechanism further includes a first lifting drive source and a first translation drive source, the first lifting drive source is connected to the first translation drive source, and the first translation drive source is arranged on the frame.

[0011] In one embodiment, it also includes a clamping mechanism, which includes a lever, a first cam, a first connecting rod, a first pressure plate, a first spring and a first mounting block, one end of the first cam is connected to the lever, and the other end of the first cam is connected to the first pressure plate through the first connecting rod, a first spring is arranged between the first pressure plate and the first mounting block, and the first mounting block cover is arranged on the clamping mechanism.

[0012] In one embodiment, the clamping mechanism further includes a pressure block, and the pressure block is provided at the end of the lever away from the first cam.

[0013] In one embodiment, a downward pressing mechanism is further included, which includes a pressing rod, a first substrate, a second lifting drive source and a first connecting frame, the first connecting frame is arranged on the frame, the second lifting drive source is arranged on the first connecting frame, the driving end of the second lifting drive source is connected to the first substrate, and a pressing rod for pressing down the first pressure plate is provided on the first substrate.

[0014] In one embodiment, the clamping mechanism also includes a second cam, a second connecting rod, a second spring, a second pressure plate and a second mounting block, one end of the second cam is connected to the movable clamping block, and the other end of the second cam is connected to the second pressure plate through the second connecting rod, a second spring is arranged between the second pressure plate and the second mounting block, and the second mounting block cover is arranged on the clamping mechanism.

[0015] In one embodiment, a side-pushing mechanism is further included, which includes a push rod, a second base plate, a second translation drive source and a second connecting frame. The second connecting frame is arranged on the frame, the second translation drive source is arranged on the second connecting frame, the driving end of the second translation drive source is connected to the second base plate, and the second base plate is provided with a push rod for side-pushing the second pressure plate.

[0016] In one embodiment, the suction assembly includes a suction rod and a suction nozzle, the interior of the suction rod is provided with a suction channel, one end of the suction rod is provided with a suction nozzle, and the suction nozzle is connected to the suction channel.

[0017] In one embodiment, the angle between the tray and the bracket is less than 90°.

[0018] In one embodiment, a baffle is provided on the edge of the tray.

[0019] The above technical solution of the utility model has the following advantages compared with the prior art:

[0020] The utility model integrates a vacuuming mechanism, a feeding frame and a clamping mechanism. After the vacuuming operation of the blood transfusion bag is completed by the vacuuming mechanism, it is automatically transferred to the feeding frame. The blood transfusion bag is fixed by the suction cup and the clamping mechanism of the feeding frame, and a tray is used to place the blood transfusion bags that do not require vacuuming. Through the coordinated work of various mechanisms, the automatic operation of the feeding process of the blood transfusion bag filling machine is realized, ensuring the consistency and efficiency of the entire operation process, reducing the time and errors of manual operation, improving production efficiency and product quality, and reducing labor costs. This structural design and functional configuration make the device have important application value in the field of blood transfusion bag production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0022] Figure 1 The utility model is a structural diagram of a feeding device of a blood transfusion bag filling machine proposed in an embodiment of the present invention.

[0023] Figure 2 is Figure 1 The structural diagram of the vacuum mechanism is omitted.

[0024] Figure 3 is Figure 2 A structural diagram in which some components are omitted.

[0025] Figure 4 yes Figure 3 A partial enlarged schematic diagram of part A above.

[0026] Among them, the description of the figure marks is as follows: 11, mounting plate; 12, vacuum joint; 131, vacuum rod; 132, suction nozzle; 14, first lifting drive source; 15, first translation drive source; 21, bracket; 22, tray; 23, suction cup; 31, fixed clamp; 32, movable clamp; 33, second cam; 34, second connecting rod; 35, second spring; 36, second pressure plate; 37, second mounting block; 4, frame; 51, lever; 52, first cam; 53, first connecting rod; 54, first pressure plate; 55, first spring; 56, first mounting block; 57, pressure block; 61, pressure rod; 62, first substrate; 63, second lifting drive source; 64, first connecting frame; 71, push rod; 72, second substrate; 73, second translation drive source; 74, second connecting frame; 8, baffle. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0028] Reference Figures 1 to 4 As shown, an embodiment of the utility model provides a feeding device of a blood transfusion bag filling machine, comprising a vacuum mechanism, a feeding frame and a clamping mechanism. The vacuum mechanism comprises a mounting plate 11 movable along the Y and Z directions, a vacuum joint 12 and a suction assembly. The suction assembly and the vacuum joint 12 are both arranged on the mounting plate 11, for respectively adsorbing and fixing the blood transfusion bag and performing vacuum operations; the feeding frame has a bracket 21, a tray 22 and a suction cup 23, one end of the bracket 21 is provided with a tray 22, and a side of the bracket 21 facing the suction assembly is provided with a suction cup 23 for adsorbing the blood transfusion bag; the clamping mechanism comprises a fixed clamp block 31 and a movable clamp block 32, the fixed clamp block 31 is arranged at the end of the bracket 21 away from the tray 22, the movable clamp block 32 is arranged corresponding to the fixed clamp block 31, and the movable clamp block 32 can move relative to the fixed clamp block 31, for clamping the vacuum tube of the blood transfusion bag.

[0029] The utility model integrates a vacuuming mechanism, a feeding frame and a clamping mechanism. After the vacuuming operation of the blood transfusion bag is completed by the vacuuming mechanism, it is automatically transferred to the feeding frame. The blood transfusion bag is fixed by the suction cup 23 of the feeding frame and the clamping mechanism, and the blood transfusion bag that does not require vacuuming is placed on the tray 22. Through the coordinated work of various mechanisms, the automatic operation of the feeding process of the blood transfusion bag filling machine is realized, ensuring the consistency and efficiency of the entire operation process, reducing the time and errors of manual operation, improving production efficiency and product quality, and reducing labor costs. This structural design and functional configuration make the device have important application value in the field of blood transfusion bag production.

[0030] Among them, the above-mentioned suction component includes a suction rod 131 and a suction nozzle 132. The suction rod 131 is installed on the mounting plate 11. A suction channel is provided inside the suction rod 131. A suction nozzle 132 is provided at one end of the suction rod 131. The suction nozzle 132 is connected to the suction channel to construct a complete suction passage, which provides a basis for subsequent adsorption and fixation of the blood transfusion bag. During actual operation, the vacuum tubes of the blood transfusion bags that need to be vacuumed in the string can be accurately connected to the vacuum connector 12 with the help of a robot, while the blood transfusion bags that do not need to be vacuumed are stacked on the tray 22. This division of labor placement can handle blood transfusion bags with different needs at the same time, thereby improving overall work efficiency. After completing the initial placement, the vacuum channel of the vacuum rod 131 is evacuated. As the air pressure in the channel decreases, suction is generated at the connected suction nozzle 132, which tightly adsorbs the blood transfusion bag, stabilizes the position of the blood transfusion bag, and creates stable conditions for accurate vacuuming. After the blood transfusion bag is accurately fixed by the suction nozzle 132, the vacuum connector 12 is used to start the vacuuming procedure for the blood transfusion bag to ensure that the inside of the blood transfusion bag reaches a suitable vacuum degree. The entire process is closely linked and has a high degree of automation, which helps to improve the quality and efficiency of blood transfusion bag production.

[0031] Furthermore, the angle between the tray 22 and the bracket 21 is less than 90°. The tilted tray 22 can utilize the blood transfusion bag's own weight to make it slide more smoothly to the appropriate position, facilitating subsequent operation processes. There is no need to apply excessive external force to regulate the placement of the blood transfusion bag, thereby improving the efficiency of loading. The edge of the tray 22 is provided with a baffle 8. On the one hand, it can prevent the blood transfusion bag from accidentally sliding off the edge of the tray 22 when sliding in, placing, or due to slight shaking of the equipment, thereby ensuring the stability of the material placement. On the other hand, on an automated production line, the baffle 8 can assist the robot or other loading equipment in more accurately positioning the blood transfusion bag, avoiding grasping errors and other situations, and further improving the accuracy and reliability of the entire loading device.

[0032] In this embodiment, a feeding device of a blood transfusion bag filling machine further includes a frame 4, and a vacuum mechanism further includes a first lifting drive source 14 and a first translation drive source 15. The first lifting drive source 14 is connected to the first translation drive source 15, and the first translation drive source 15 is disposed on the frame 4. Preferably, the first lifting drive source 14 can be a lifting cylinder, and the first translation drive source 15 can be a linear motor. During actual operation, the lifting cylinder and the linear motor work together to drive the vacuum mechanism to move flexibly in the Y and Z planes. After completing the vacuum operation of the blood transfusion bag, the linear motor drives the vacuum mechanism as a whole to move toward the feeding frame to facilitate the suction cup 23 to absorb the blood transfusion bag. Finally, the lifting cylinder drives the vacuum mechanism to lift upward, separating the vacuum joint 12 from the blood transfusion bag extraction pipe. The various components cooperate closely and move smoothly, further improving the degree of automation and operating efficiency of the device.

[0033] Furthermore, the feeding device of the blood transfusion bag filling machine according to this embodiment further includes a clamping mechanism, which includes a lever 51, a first cam 52, a first connecting rod 53, a first pressure plate 54, a first spring 55, and a first mounting block 56. One end of the first cam 52 is connected to the lever 51, and the other end of the first cam 52 is connected to the first pressure plate 54 via the first connecting rod 53. The first spring 55 is disposed between the first pressure plate 54 and the first mounting block 56, and the first mounting block 56 is mounted on the clamping mechanism. Corresponding to the clamping mechanism, the feeding device of the blood transfusion bag filling machine according to this embodiment further includes a pressing mechanism, which includes a pressing rod 61, a first base plate 62, a second lifting drive source 63, and a first connecting frame 64. The first connecting frame 64 is disposed on the machine frame 4, and the second lifting drive source 63 is disposed on the first connecting frame 64. The driving end of the second lifting drive source 63 is connected to the first base plate 62. The first base plate 62 is provided with a pressing rod 61 for pressing down the first pressure plate 54. Preferably, the second lifting drive source 63 can be a lifting cylinder. When the clamping mechanism needs to be triggered, the lifting cylinder is started, driving the first base plate 62 and the pressure rod 61 to move vertically downward. The pressure rod 61 contacts and presses down the first pressure plate 54, prompting the clamping mechanism to start the clamping action. The first pressure plate 54 under the pressure of the pressure rod 61 overcomes the resistance of the first spring 55 and begins to move downward along a predetermined straight line. The downward movement of the first pressure plate 54 drives the first connecting rod 53 connected to it. Since the other end of the first connecting rod 53 is connected to the first cam 52, the first connecting rod 53 pushes the first cam 52 to rotate around its axis. The unique contour curve of the cam cleverly converts the linear motion transmitted by the first connecting rod 53 into rotational power again, driving the lever 51 connected to it to rotate around the fulcrum of the lever 51. The lever 51 continues to rotate, and its end gradually approaches the blood transfusion bag until it is tightly against the blood transfusion bag. Relying on the rigidity of the mechanical structure itself and the designed transmission ratio, sufficient clamping force is applied to firmly fix the blood transfusion bag in the position of the suction cup 23. During this process, the first spring 55 is continuously compressed, and the stored elastic potential energy increases, reserving energy for the subsequent release action. When the corresponding process is completed, the downward pressure on the pressure rod 61 is removed, and the compressed first spring 55 instantly releases its elastic potential energy, pushing the pressure plate upward. The pressure plate moves up, driving the first connecting rod 53 to pull the first cam 52 in reverse. The reverse rotation of the first cam 52 in turn causes the lever 51 to rotate in the opposite direction, returning to its initial position. The entire clamping mechanism releases the blood bag, and all components return to their initial standby state, ready for the next fixing operation. This achieves more precise and stable control of the blood bag-related components, allowing the device's automated process to be seamlessly connected.

[0034] The clamping mechanism can be extended to include a pressure block 57, which is provided at the end of the lever 51 facing away from the first cam 52. Preferably, the pressure block 57 can be a trapezoidal block, with the larger surface of the trapezoidal block used to compress the blood transfusion bag. This larger contact surface not only disperses the pressure more evenly, preventing damage to the blood transfusion bag caused by excessive local pressure, but also increases the coverage of a single compression. In this way, each movement of the lever 51 can use this trapezoidal pressure block 57 to simultaneously compress and secure the blood transfusion bags on two adjacent suction cups 23, greatly improving the efficiency of the securing operation. In the loading process of the filling machine for batch processing of blood transfusion bags, the frequency of operation is reduced, making the entire loading process more compact and efficient, further meeting the needs of automated production.

[0035] Next, the clamping mechanism further includes a second cam 33, a second connecting rod 34, a second spring 35, a second pressure plate 36, and a second mounting block 37. One end of the second cam 33 is connected to the movable clamping block 32, and the other end of the second cam 33 is connected to the second pressure plate 36 via the second connecting rod 34. A second spring 35 is disposed between the second pressure plate 36 and the second mounting block 37, and the second mounting block 37 is mounted on the clamping mechanism. Corresponding to the clamping mechanism, the feeding device of the blood transfusion bag filling machine in this embodiment further includes a side push mechanism. The side push mechanism includes a push rod 71, a second base plate 72, a second translation drive source 73, and a second connecting frame 74. The second connecting frame 74 is disposed on the frame 4. The second translation drive source 73 is disposed on the second connecting frame 74. The driving end of the second translation drive source 73 is connected to the second base plate 72. The second base plate 72 is provided with a push rod 71 for side pushing the second pressure plate 36. Preferably, the second translation drive source 73 can be a linear motor. When the clamping mechanism needs to be triggered to perform the clamping action, the linear motor is activated, driving the second base plate 72 and the push rod 71 to move horizontally. The push rod 71 contacts and pushes the second pressure plate 36. Through the linkage of the second pressure plate 36 and other components, the clamping mechanism initiates the clamping operation. The second pressure plate 36, under the pressure of the push rod 71, overcomes the resistance of the second spring 35 and moves horizontally in a straight line. This in turn drives the first connecting rod 53 connected to it to rotate the first cam 52 about its axis. The second cam 33 has a unique profile curve. During the rotation process, it can transmit its own rotational motion to the movable clamp 32 through the principle of mechanical transmission, converting the rotational motion into linear motion of the movable clamp 32 toward the fixed clamp 31. The movable clamp 32 continues to move linearly towards the fixed clamp 31, ultimately firmly clamping the blood transfusion bag's suction tube. During this process, the second spring 35 is continuously compressed, storing elastic potential energy, which is then used to build momentum for the subsequent release action. Upon completion of the corresponding process, the push rod 71 withdraws the pressure applied to the second pressure plate 36. At this point, the compressed second spring 35 releases its elastic potential energy, pushing the second pressure plate 36 horizontally in the opposite direction. The reverse movement of the second pressure plate 36 drives the second connecting rod 34, causing the second cam 33 to rotate in the opposite direction, which in turn drives the movable clamp 32 to move linearly away from the fixed clamp 31 and return to its initial position. The entire clamping mechanism releases its grip on the blood bag, preparing for the next clamping operation. Throughout the entire loading process of the blood bag filling machine, precise control of key components such as the blood bag extraction pipe ensures the stable flow of blood bags between processes, improving the consistency and accuracy of the device's automated operations.

[0036] The loading mechanism of a blood bag filling machine in this embodiment operates as follows: A robotic arm delivers a string of blood bags. The vacuum tubes of bags requiring vacuum are precisely connected to the vacuum connector 12 of the vacuum mechanism. Meanwhile, bags not requiring vacuum are stacked on the tray 22 of the loading frame. The vacuum mechanism's first translational drive source 15 (e.g., a linear motor) and first lift drive source 14 (e.g., a lift cylinder) work in tandem to drive the mounting plate 11 in the Y and Z directions, precisely positioning the suction assembly over the blood bag. The suction rod 131 of the suction assembly then draws air, securing the bag with the connected suction nozzle 132 in preparation for subsequent vacuuming. Once the bag is securely attached, the vacuum connector 12 begins vacuuming the bag, achieving the required vacuum level within the bag to ensure blood preservation quality. After vacuuming is complete, the first translational drive source 15 drives the entire vacuum mechanism toward the loading frame, enabling the suction cup 23 of the loading frame to secure the bag. Subsequently, the first lifting drive source 14 drives the vacuum mechanism upward, disengaging the vacuum connector 12 from the blood bag's suction tube. The second lifting drive source 63 of the downward-pressing mechanism then drives the first base plate 62 downward, causing the pressure rod 61 to push the first pressure plate 54 of the clamping mechanism. The first pressure plate 54 rotates via the first connecting rod 53, forcing the lever 51 downward. The pressure block 57 at the end of the lever 51 compresses and secures the blood bag on the two adjacent suction cups 23. Simultaneously, the second translation drive source 73 of the side-pushing mechanism drives the second base plate 72 to move, causing the push rod 71 to push the second pressure plate 36 of the clamping mechanism. The second pressure plate 36 overcomes the resistance of the second spring 35 and moves horizontally. The second connecting rod 34 drives the second cam 33 to rotate, converting the rotational motion into linear motion of the movable clamp 32, which moves closer to the fixed clamp 31 and clamps the blood bag's suction tube. After the above steps, the blood transfusion bag is precisely fixed on the loading frame, and can then be seamlessly connected to the subsequent filling, sealing and other processes of the filling machine. When these processes are completed, the various mechanisms operate in reverse, loosening the fixation and clamping of the blood transfusion bag and preparing for the next round of loading operations.

[0037] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A feeding device for a blood transfusion bag filling machine, characterized by: include: A vacuum pumping mechanism, comprising a mounting plate movable in the Y and Z directions, a vacuum pumping connector, and a material suction assembly, wherein the material suction assembly and the vacuum pumping connector are both disposed on the mounting plate and are used to perform suction fixation and vacuum pumping operations on the blood transfusion bag, respectively; A feeding frame, comprising a bracket, a tray and a suction cup, wherein one end of the bracket is provided with a tray, and a side of the bracket facing the suction assembly is provided with a suction cup for adsorbing a blood transfusion bag; The clamping mechanism includes a fixed clamping block and a movable clamping block. The fixed clamping block is arranged at the end of the bracket away from the tray. The movable clamping block is arranged corresponding to the fixed clamping block, and the movable clamping block can move relative to the fixed clamping block to clamp the air extraction tube of the blood transfusion bag.

2. A feeding device for a blood transfusion bag filling machine according to claim 1, characterized in that: It also includes a frame, and the vacuum mechanism also includes a first lifting drive source and a first translation drive source, the first lifting drive source is connected to the first translation drive source, and the first translation drive source is arranged on the frame.

3. A feeding device for a blood transfusion bag filling machine according to claim 1 or 2, characterized in that: It also includes a clamping mechanism, which includes a lever, a first cam, a first connecting rod, a first pressure plate, a first spring and a first mounting block. One end of the first cam is connected to the lever, and the other end of the first cam is connected to the first pressure plate through the first connecting rod. A first spring is arranged between the first pressure plate and the first mounting block, and the first mounting block cover is arranged on the clamping mechanism.

4. The feeding device of a blood transfusion bag filling machine according to claim 3, characterized in that: The clamping mechanism further includes a pressing block, which is provided at one end of the lever away from the first cam.

5. The feeding device of the blood transfusion bag filling machine according to claim 3, characterized in that: It also includes a downward pressing mechanism, which includes a pressing rod, a first base plate, a second lifting drive source and a first connecting frame. The first connecting frame is arranged on the frame, the second lifting drive source is arranged on the first connecting frame, the driving end of the second lifting drive source is connected to the first base plate, and a pressing rod for pressing down the first pressure plate is provided on the first base plate.

6. A feeding device for a blood transfusion bag filling machine according to claim 1 or 2, characterized in that: The clamping mechanism also includes a second cam, a second connecting rod, a second spring, a second pressure plate and a second mounting block, one end of the second cam is connected to the movable clamping block, and the other end of the second cam is connected to the second pressure plate through the second connecting rod, a second spring is arranged between the second pressure plate and the second mounting block, and the second mounting block cover is arranged on the clamping mechanism.

7. The feeding device of the blood transfusion bag filling machine according to claim 6, characterized in that: It also includes a side-pushing mechanism, which includes a push rod, a second base plate, a second translation drive source and a second connecting frame. The second connecting frame is arranged on the frame, the second translation drive source is arranged on the second connecting frame, the driving end of the second translation drive source is connected to the second base plate, and the second base plate is provided with a push rod for side-pushing the second pressure plate.

8. A feeding device for a blood transfusion bag filling machine according to claim 1 or 2, characterized in that: The suction component includes a suction rod and a suction nozzle. The interior of the suction rod is provided with a suction channel. One end of the suction rod is provided with a suction nozzle, and the suction nozzle is connected to the suction channel.

9. A feeding device for a blood transfusion bag filling machine according to claim 1 or 2, characterized in that: The angle between the tray and the bracket is less than 90°.

10. A feeding device for a blood transfusion bag filling machine according to claim 1 or 2, characterized in that: The edge of the tray is provided with a baffle.

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