Pre-filled needle conveying equipment with converging function

Abstract

The invention discloses pre-filled needle conveying equipment with a converging function, and belongs to the technical field of conveying equipment. Comprising a base and a guiding and conveying mechanism, the guiding and conveying mechanism is arranged on the upper side of the base, the guiding and conveying mechanism comprises a left conveying line device, a middle conveying line device, a right conveying line device and a converging assembly, the left conveying line device, the middle conveying line device and the right conveying line device are sequentially arranged from left to right, and the converging assembly comprises a base body, a cover body, two sets of plugging components and a flow guiding component; the flow guiding component comprises a lower conveying line device and two first guide rails, the two blocking components are arranged on the two sides of the lower conveying line device and used for controlling connection and disconnection of the guiding and conveying mechanism, and sensing devices are fixedly installed on the upper sides of the left conveying line device, the middle conveying line device and the right conveying line device. The problems that conveying of multiple types of pre-filling needles cannot be achieved, and the packaging requirements of the multiple types of pre-filling needles are not met are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of conveying equipment technology, specifically to a pre-filled needle conveying device with a merging function. Background Technology

[0002] Pre-filled syringes, also known as pre-filled syringes, are syringes in which the drug solution is pre-filled. They are used directly by injecting the drug solution with the syringe and are disposable. They are very convenient to use and are therefore becoming increasingly popular in the market, with demand increasing day by day. After mass production, pre-filled syringes need to be packaged, usually in a box with grooves. Nowadays, pharmaceutical factories usually use conveyor lines to transport pre-filled syringes during packaging.

[0003] In the prior art, patent application CN120003953A discloses a horizontal conveying line and conveying method for pre-filled needles, and patent application CN120191716A discloses a feeding device and feeding method for pre-filled needles. Both of these devices use conveying lines, but the conveying lines are mostly single channels. When it is necessary to feed pre-filled needles containing different drug components into the same packaging box, it is not possible to convey multiple types of pre-filled needles, thus it is not suitable for the packaging needs of multiple categories of pre-filled needles. Summary of the Invention

[0004] To overcome the above-mentioned defects, the present invention provides a pre-filled needle delivery device with merging function, specifically adopting the following technical solution: A pre-filled needle delivery device with merging function includes a base and a guiding mechanism, wherein the guiding mechanism is disposed on the upper side of the base; The guiding mechanism includes a left conveyor line device, a middle conveyor line device, a right conveyor line device, and a merging assembly. The left conveyor line device, the middle conveyor line device, and the right conveyor line device are arranged in sequence from left to right, and are all fixedly mounted on the base at an angle downwards by multiple uprights. The bottom output ends of the left conveyor line device, the middle conveyor line device, and the right conveyor line device are all connected to the merging assembly. The merging assembly includes a base, a cover, two sets of sealing components and a flow guiding component. The flow guiding component includes a lower conveyor device and two first guide rails. The base is vertically fixed on the upper side of the base, the cover is fixedly fixed on the upper side of the base, and the two first guide rails are horizontally fixed in the cover. The lower conveyor device is slidably embedded in the two first guide rails and tilted downwards. The bottom output ends of the left, middle and right conveyor devices are all fixedly connected to the top input end of the cover. Two sets of blocking components are installed on both sides of the lower conveyor device to control the opening and closing of the guiding mechanism; Sensors are fixedly installed on the upper side of the left, middle, and right conveyor devices.

[0005] As a preferred technical solution of the present invention, the sealing component includes a drum and multiple baffles. The multiple baffles are all arranged perpendicular to the output end of the guiding mechanism, and adjacent baffles are hinged together. The interconnected baffles are wound on the drum. The baffle ends near the middle are fixedly connected to the side of the lower conveyor device. A linkage mechanism is provided on the bottom side of the cover. The linkage mechanism is used to drive the lower conveyor device to slide and the two drums to rotate.

[0006] As a preferred technical solution of the present invention, the linkage mechanism includes a motor, a screw, three pulleys, a transmission belt, and two gears. The motor is fixedly installed on the bottom side of the cover and perpendicular to the bottom surface of the cover. The three pulleys are respectively fixedly sleeved on the bottom ends of the two drums and the output shaft of the motor. The transmission belt is rotatably sleeved on the three pulleys. The screw is horizontally rotatably installed on the upper surface of the bottom side of the cover through two supports. The lower conveyor device is threadedly sleeved on the screw. The two gears are respectively fixedly sleeved on the top end of the motor main shaft and the end of the screw, and are meshed together.

[0007] As a preferred technical solution of the present invention, a power roller device is horizontally fixedly installed on the front side of the base via two trusses. The power roller device is used to convey the vesicle box of the pre-filled needle for packaging. A conveyor belt device is horizontally arranged on the upper side of the output end area of ​​the power roller device. The conveyor belt device is used to push the pre-filled needle for packaging. A packaging mechanism is provided on the side end of the lower conveyor line device.

[0008] As a preferred technical solution of the present invention, the packaging mechanism includes a winding assembly and a pressing assembly. The winding assembly includes a card holder and a roller. The card holder is horizontally fixedly installed on the outside of the lower conveyor device, and the roller is fixedly installed on the upper side of the card holder and perpendicular to the card holder. A sealing film is rotatably sleeved on the roller, and an adhesive is glued to the outside of the sealing film. The pressing assembly is disposed between the lower conveyor device and the winding assembly.

[0009] As a preferred embodiment of the present invention, the pressing assembly includes a pressure plate, two first cylinders, a heating plate, a cutter, a pressure roller, two springs, a connecting frame, two guide rods, and a sliding component. The pressure plate is disposed on the side of the lower conveyor device via the sliding component. Both first cylinders are horizontally inclined downwards, and their ends are fixedly mounted on the bottom of the pressure plate. The cutter is inclined forward, and its rear end is fixedly connected to the two first cylinders. The heating plate is vertically inclined and fixedly mounted on the side of the pressure plate near the lower conveyor device. The side of the sealing film without adhesive is in sliding contact with the heating plate. The frame is vertically fixed on the side of the pressure plate away from the lower conveyor device. Two guide rods are inclined and slidably sleeved in the connecting frame, and are positioned vertically opposite each other. A retaining ring is fixedly sleeved on each of the two guide rods. Two springs are respectively sleeved on the two guide rods, and their ends are fixedly connected to the retaining rings and the side of the connecting frame that are close to each other. The two ends of the pressure roller are respectively rotated and sleeved on the bottom of the two guide rods. An air pump device is fixedly installed on the outside of the side of the lower conveyor device opposite to the pressure plate. An air vent is opened at the bottom of the pressure plate. The air pump device is connected to the air vent through an air pipe. The sliding component is set on the top of the pressure plate.

[0010] As a preferred embodiment of the present invention, the sliding component includes a second cylinder, a second guide rail, and a slide. The second guide rail is fixedly mounted on the upper side of the pressure plate at an angle downwards. The slide is slidably embedded in the second guide rail. The second cylinder is fixedly mounted on the upper side of the pressure plate at an angle downwards, and its output end is fixedly connected to the upper end of the slide.

[0011] Compared with the prior art, the present invention provides a pre-filled needle delivery device with merging function, which has the following beneficial effects: (1) The lower conveyor device moves under the drive of the linkage mechanism and passes through the left conveyor device, the middle conveyor device and the right conveyor device in sequence to receive a preset number of pre-filled needles, and then pushes them into the groove of the vesicle box, so that the received pre-filled needles are sequentially loaded into the groove of the vesicle box, so that pre-filled needles of different drug components can be loaded into the same packaging box according to the requirements. (2) When the lower conveyor moves to the right, it will receive the pre-charge needles. When it moves to the left, it will unload the received pre-charge needles. During unloading, it will work with the packaging mechanism to promptly package the pre-charge needles in the vesicle box, reduce the exposure time of the pre-charge needles, and prevent the pre-charge needles from detaching from the vesicle box during the conveying process. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of a pre-filled needle delivery device with merging function proposed in this invention; Figure 2 This is a partial side view cross-sectional structural diagram of a pre-filled needle delivery device with merging function proposed in this invention; Figure 3 This is a top view partial cross-sectional structural diagram of a pre-filled needle conveying device with merging function proposed in this invention; Figure 4 for Figure 2 Enlarged view of the structure at point A in the image; Figure 5 for Figure 3 Enlarged view of the structure at point B in the image.

[0013] In the diagram: 1. Base; 101. Data terminal; 2. Left conveyor; 3. Middle conveyor; 4. Right conveyor; 5. Seat; 6. Cover; 7. Lower conveyor; 8. First guide rail; 9. Sensor; 10. Drum; 11. Baffle; 12. Motor; 13. Screw; 14. Pulley; 15. Drive belt; 16. Gear; 17. Support frame; 18. Truss; 19. Power unit 20. Roller assembly; 21. Conveyor belt assembly; 22. Card holder; 23. Reel; 24. Sealing film; 25. Adhesive; 26. Pressure plate; 27. Air outlet; 28. First cylinder; 29. ​​Heating plate; 30. Cutting knife; 31. Pressure roller; 32. Spring; 33. Connecting frame; 34. Guide rod; 35. Retaining ring; 36. Air pump assembly; 37. Air pipe; 38. Second cylinder; 39. Second guide rail; 30. Slide carriage. Detailed Implementation

[0014] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, what is described is only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] See Figure 1-5 A pre-filled needle delivery device with merging function includes a base 1 and a guiding mechanism, wherein the guiding mechanism is disposed on the upper side of the base 1; The guiding mechanism includes a left conveyor line device 2, a middle conveyor line device 3, a right conveyor line device 4, and a merging assembly. The left conveyor line device 2, the middle conveyor line device 3, and the right conveyor line device 4 are arranged from left to right and are all fixedly mounted on the base 1 at an angle downwards by multiple uprights. The bottom output ends of the left conveyor line device 2, the middle conveyor line device 3, and the right conveyor line device 4 are all connected to the merging assembly. The merging assembly includes a base 5, a cover 6, two sets of sealing components and a flow guiding component. The flow guiding component includes a lower conveyor device 7 and two first guide rails 8. The base 5 is vertically fixedly installed on the upper side of the base 1, and the cover 6 is fixedly installed on the upper side of the base 5. The two first guide rails 8 are horizontally fixedly installed inside the cover 6. The lower conveyor device 7 is slidably embedded on the two first guide rails 8 and tilted downward. The bottom output ends of the left conveyor device 2, the middle conveyor device 3 and the right conveyor device 4 are all fixedly connected to the top input end of the cover 6. The left conveyor device 2, the middle conveyor device 3, the right conveyor device 4, and the lower conveyor device 7 all adopt the same structure in the prior art. Through the cyclically rotating belt, the pre-filled needles are conveyed in an orderly manner under the action of friction. Their specific structures will not be described in detail here.

[0016] Two sets of blocking components are installed on both sides of the lower conveyor device 7 to control the opening and closing of the guiding mechanism; The left conveyor device 2, the middle conveyor device 3 and the right conveyor device 4 are all fixedly installed with a sensor 9, which is used to sense the number of pre-filled needles flowing through.

[0017] The sealing component includes a drum 10 and multiple baffles 11. The multiple baffles 11 are all arranged perpendicular to the output end of the guiding mechanism, and adjacent baffles 11 are hinged together. The interconnected baffles 11 are wound on the drum 10. The end of the baffle 11 near the middle is fixedly connected to the side of the lower conveyor device 7. The bottom side of the cover 6 is provided with a linkage mechanism, which is used to drive the lower conveyor device 7 to slide and the two drums 10 to rotate.

[0018] The linkage mechanism includes a motor 12, a screw 13, three pulleys 14, a transmission belt 15, and two gears 16. The motor 12 is fixedly installed on the bottom side of the cover 6 and is perpendicular to the bottom surface of the cover 6. The three pulleys 14 are respectively fixedly sleeved on the bottom ends of the two drums 10 and the output shaft of the motor 12. The transmission belt 15 is rotatably sleeved on the three pulleys 14. The screw 13 is horizontally rotatably installed on the upper surface of the inner bottom side of the cover 6 through two support brackets 17. The lower conveyor device 7 is threadedly sleeved on the screw 13. The two gears 16 are respectively fixedly sleeved on the top end of the main shaft of the motor 12 and the end of the screw 13, and are meshed together.

[0019] A power roller device 19 is horizontally fixed on the front side of the base 1 via two trusses 18. The power roller device 19 is used to convey the vesicle box for packaging pre-filled needles. A conveyor belt device 20 is horizontally arranged on the upper side of the output area of ​​the power roller device 19 on the base 1. The conveyor belt device 20 is used to push the pre-filled needles for packaging. A sealing mechanism is provided on the side of the lower conveyor line device 7.

[0020] The packaging mechanism includes a winding assembly and a pressing assembly. The winding assembly includes a card holder 21 and a reel 22. The card holder 21 is horizontally fixedly installed on the outside of the lower conveyor device 7. The reel 22 is fixedly installed on the upper side of the card holder 21 and is perpendicular to the card holder 21. A sealing film 23 is rotatably sleeved on the reel 22. An adhesive tape 24 is adhered to the outside of the sealing film 23. The pressing assembly is located between the lower conveyor device 7 and the winding assembly.

[0021] The pressing assembly includes a pressure plate 25, two first cylinders 26, a heating plate 27, a cutter 28, a pressure roller 29, two springs 30, a connecting frame 31, two guide rods 32, and a sliding component. The pressure plate 25 is mounted on the side of the lower conveyor device 7 via the sliding component. Both first cylinders 26 are horizontally inclined downwards, and their ends are fixedly mounted on the bottom of the pressure plate 25. The cutter 28 is inclined forward, and its rear end is fixedly connected to the two first cylinders 26. The heating plate 27 is vertically inclined and fixedly mounted on the side of the pressure plate 25 near the lower conveyor device 7. The side of the sealing film 23 without adhesive 24 slides in contact with the heating plate 27. The connecting frame 31 is vertically fixedly mounted on... On the side of the pressure plate 25 away from the lower conveyor device 7, two guide rods 32 are inclined and slidably sleeved in the connecting frame 31 and are positioned vertically opposite each other. A retaining ring 33 is fixedly sleeved on each of the two guide rods 32. Two springs 30 are respectively sleeved on the two guide rods 32, and their two ends are respectively fixedly connected to the retaining ring 33 and the side of the connecting frame 31 that are close to each other. The two ends of the pressure roller 29 are respectively rotatably sleeved on the bottom end of the two guide rods 32. An air pump device 34 is fixedly installed on the side of the lower conveyor device 7 opposite to the pressure plate 25. An air vent 251 is opened at the bottom end of the pressure plate 25. The air pump device 34 is connected to the air vent 251 through an air pipe 35. The sliding component is set on the top of the pressure plate 25.

[0022] The sliding component includes a second cylinder 36, a second guide rail 37, and a slide 38. The second guide rail 37 is fixedly mounted on the upper side of the pressure plate 25 at an angle downwards. The slide 38 is slidably embedded in the second guide rail 37. The second cylinder 36 is fixedly mounted on the upper side of the pressure plate 25 at an angle downwards, and its output end is fixedly connected to the upper end of the slide 38.

[0023] When this equipment is in operation, it can transport and package pre-filled syringes with different drug components. The input ends of the left conveyor device 2, the middle conveyor device 3, and the right conveyor device 4 are respectively connected to the pre-filled syringe transport production line with different drug components. The overall operation of the equipment is controlled by the data terminal 101 and is powered by an external power source. The control system and the circuit connection relationship between various electrical components are existing technologies and will not be described in detail here.

[0024] When a batch of pre-charged needles flow through the left conveyor device 2, the middle conveyor device 3, and the right conveyor device 4, they are monitored and sensed by the sensor device 9, which detects the number of pre-charged needles flowing through and feeds the collected data back to the data terminal 101. The data terminal 101 controls the equipment based on the feedback.

[0025] Motor 12 starts and stops under the control of data terminal 101. First, the input end of the lower conveyor device 7 is aligned with the output end of the left conveyor device 2. At this time, the output ends of the middle conveyor device 3 and the right conveyor device 4 are blocked by multiple baffles 11, preventing the pre-charge needles from flowing down. After receiving a preset number of pre-charge needles from the left conveyor device 2, data terminal 101 starts motor 12. Motor 12 drives gear 16 and pulley 14 located at its output end to rotate, thereby driving screw 13 and transmission belt 15 through gear 16. Rotation causes the screw 13 to drive the lower conveyor device 7 to move on the two first guide rails 8 via the thread. The transmission belt 15 drives the two drums 10 to rotate via the other two pulleys 14, thereby releasing and winding the multiple baffles 11. After the output end of the lower conveyor device 7 is aligned with the output end of the middle conveyor device 3, the middle conveyor device 3 conveys a preset number of pre-filled needles into the lower conveyor device 7. Then the motor 12 starts again, causing the lower conveyor device 7 to move to the right conveyor device 4 to receive the preset number of pre-filled needles.

[0026] Driven by the linkage mechanism, the lower conveyor device 7 moves sequentially through the left conveyor device 2, the middle conveyor device 3, and the right conveyor device 4 to receive a preset number of pre-filled needles. Then, the motor 12 rotates in the reverse direction, causing the lower conveyor device 7 to move in the reverse direction. At this time, the received pre-filled needles are discharged through the bottom of the lower conveyor device 7 and pushed into the groove of the vesicle box. The vesicle box moves to the right under the conveying of the power roller device 19, which is opposite to the movement direction of the lower conveyor device 7 moving to the left. This allows the received pre-filled needles to be loaded into the groove of the vesicle box in sequence, so that pre-filled needles with different drug components can be loaded into the same packaging box as required.

[0027] As the lower conveyor 7 moves to the left for unloading, it simultaneously drives the sealing mechanism to move and operate. The second cylinder 36 extends, causing the slide 38 to move the pressure plate 25 downward, pushing the sealing film 23, preheated by the heating plate 27, to the end face of the blister pack. After the hot-melted adhesive 24 contacts the blister pack, it adheres to the surface of the blister pack. At the same time, the air pump 34 releases suction, and the air vent 251 releases the sealing film 23. As the lower conveyor 7 moves in the opposite direction to the blister pack, the sealing film 23 is stretched, heated by the heating plate 27, and then... The adhesive adheres to the surface of the vesicle box and is then rolled by the pressure roller 29, making the bond stronger. After all the pre-filled needles in the lower conveyor device 7 are loaded into the vesicle box and sealed by the sealing film 23, the two first cylinders 26 extend, driving the cutter 28 to move towards the vesicle box and cut the sealed film 23. At the same time, the air pump device 34 starts and generates suction, which is used to attract the end of the sealing film 23 through the air outlet 251. Then the second cylinder 36 shortens, causing the slide 38 to move upward, so that the cut sealing film 23 is removed from the vesicle box.

[0028] The encapsulated vesicle box moves to the right and eventually detaches from the power roller device 19, landing on the conveyor belt device 20. At the same time, the lower conveyor device 7 moves to the right to perform the pre-filled needle receiving operation for the next cycle. After receiving, it moves in the opposite direction to perform synchronous unloading.

[0029] When the lower conveyor 7 moves to the right, it receives the pre-charged needles. When it moves to the left, it unloads the received pre-charged needles. During unloading, it works in conjunction with the packaging mechanism to promptly package the pre-charged needles into the vesicle box, reducing the exposure time of the pre-charged needles and preventing them from detaching from the vesicle box during the conveying process.

[0030] After being heated, the adhesive 24 is not in a fluid state and will not flow downward due to its own weight. It can also maintain its stickiness for a certain period of time after being heated. The air pump device 34 is a dual-guide mechanism. The port connected to the air outlet 251 can both draw in and exhaust air. When drawing in air, it adsorbs and fixes the end of the sealing film 23. When exhausting air, it can push the end of the sealing film 23 towards the surface of the vesicle box.

[0031] The lower conveyor device 7 operates synchronously with the power roller device 19. When the lower conveyor device 7 moves from right to left, it faces the right end of the unloaded vesicle box and then begins unloading and sealing. The operating speed of the power roller device 19 is coordinated with the operation of the lower conveyor device 7.

[0032] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pre-filled needle delivery device with merging function, comprising a base (1) and a guiding mechanism, wherein the guiding mechanism is disposed on the upper side of the base (1); Its features are: The guiding mechanism includes a left conveyor line device (2), a middle conveyor line device (3), a right conveyor line device (4), and a merging assembly. The left conveyor line device (2), the middle conveyor line device (3), and the right conveyor line device (4) are arranged from left to right and are all fixedly mounted on the base (1) by multiple uprights tilting downwards. The bottom output ends of the left conveyor line device (2), the middle conveyor line device (3), and the right conveyor line device (4) are all connected to the merging assembly. The merging assembly includes a base (5), a cover (6), two sets of blocking components and a flow guiding component. The flow guiding component includes a lower conveyor device (7) and two first guide rails (8). The base (5) is vertically fixed on the upper side of the base (1), and the cover (6) is fixed on the upper side of the base (5). The two first guide rails (8) are horizontally fixed inside the cover (6). The lower conveyor device (7) is slidably embedded on the two first guide rails (8) and tilted downward. The bottom output ends of the left conveyor device (2), the middle conveyor device (3) and the right conveyor device (4) are all fixedly connected to the top input end of the cover (6). Two sets of blocking components are set on both sides of the lower conveyor device (7) to control the opening and closing of the guiding mechanism; Sensing devices (9) are fixedly installed on the upper side of the left conveyor device (2), the middle conveyor device (3) and the right conveyor device (4).

2. The pre-filled needle conveying device with merging function according to claim 1, characterized in that: The sealing component includes a drum (10) and multiple baffles (11). The multiple baffles (11) are all set perpendicular to the output end of the guiding mechanism, and adjacent baffles (11) are hinged together. The interconnected baffles (11) are wound on the drum (10). The end of the baffle (11) near the middle is fixedly connected to the side of the lower conveyor device (7). The bottom side of the cover (6) is provided with a linkage mechanism, which is used to drive the lower conveyor device (7) to slide and the two drums (10) to rotate.

3. A pre-filled needle conveying device with merging function according to claim 2, characterized in that: The linkage mechanism includes a motor (12), a screw (13), three pulleys (14), a transmission belt (15), and two gears (16). The motor (12) is fixedly installed on the bottom side of the cover (6) and perpendicular to the bottom surface of the cover (6). The three pulleys (14) are respectively fixedly sleeved on the bottom ends of the two drums (10) and the output shaft of the motor (12). The transmission belt (15) is rotatably sleeved on the three pulleys (14). The screw (13) is horizontally rotatably installed on the upper surface of the bottom side of the cover (6) through two supports (17). The lower conveyor device (7) is threaded on the screw (13). The two gears (16) are respectively fixedly sleeved on the top end of the main shaft of the motor (12) and the end of the screw (13) and are meshed.

4. A pre-filled needle conveying device with merging function according to claim 1, characterized in that: A power roller device (19) is horizontally fixed on the front side above the base (1) via two trusses (18). The power roller device (19) is used to convey the vesicle box of the pre-filled needle for packaging. A conveyor belt device (20) is horizontally set on the upper side of the output area of ​​the power roller device (19) on the base (1). The conveyor belt device (20) is used to push the pre-filled needle for packaging. A sealing mechanism is set on the side of the lower conveyor line device (7).

5. A pre-filled needle conveying device with merging function according to claim 4, characterized in that: The packaging mechanism includes a winding assembly and a pressing assembly. The winding assembly includes a card holder (21) and a reel (22). The card holder (21) is horizontally fixed on the outside of the lower conveyor device (7). The reel (22) is fixed on the upper side of the card holder (21) and perpendicular to the card holder (21). A sealing film (23) is rotatably sleeved on the reel (22). An adhesive tape (24) is glued to the outside of the sealing film (23). The pressing assembly is located between the lower conveyor device (7) and the winding assembly.

6. A pre-filled needle conveying device with merging function according to claim 5, characterized in that: The pressing assembly includes a pressure plate (25), two first cylinders (26), a heating plate (27), a cutter (28), a pressure roller (29), two springs (30), a connecting frame (31), two guide rods (32), and a sliding component. The pressure plate (25) is set on the side of the lower conveyor device (7) through the sliding component. The two first cylinders (26) are both horizontally inclined downwards and their ends are fixedly installed at the bottom of the pressure plate (25). The cutter (28) is inclined forward and its rear end is fixedly connected to the two first cylinders (26). The heating plate (27) is vertically inclined and fixedly installed on the side of the pressure plate (25) near the lower conveyor device (7). The side of the sealing film (23) without adhesive (24) is in sliding contact with the heating plate (27). The connecting frame (31) is vertically fixedly installed on the side of the pressure plate (25) near the lower conveyor device (7). The pressure plate (25) is located away from the lower conveyor device (7). Two guide rods (32) are inclined and slidably sleeved in the connecting frame (31) and are positioned opposite each other. A retaining ring (33) is fixedly sleeved on each of the two guide rods (32). Two springs (30) are respectively sleeved on the two guide rods (32) and their ends are fixedly connected to the retaining ring (33) and the connecting frame (31) respectively. The pressure roller (29) is rotatably sleeved on the bottom of the two guide rods (32). An air pump device (34) is fixedly installed on the side of the lower conveyor device (7) opposite to the pressure plate (25). An air vent (251) is opened at the bottom of the pressure plate (25). The air pump device (34) is connected to the air vent (251) through an air pipe (35). The sliding component is set on the top of the pressure plate (25).

7. A pre-filled needle conveying device with merging function according to claim 6, characterized in that: The sliding component includes a second cylinder (36), a second guide rail (37), and a slide (38). The second guide rail (37) is fixedly mounted on the upper side of the pressure plate (25) at an angle downwards. The slide (38) is slidably embedded in the second guide rail (37). The second cylinder (36) is fixedly mounted on the upper side of the pressure plate (25) at an angle downwards, and its output end is fixedly connected to the upper end of the slide (38).

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