An O-ring sealing assembly mechanism for an angiographic syringe

Abstract

The invention discloses a sealing O-ring assembly mechanism for angiographic syringes, belonging to the technical field of sealing O-ring assembly, comprising a workbench and a piston head for assembly, wherein a groove is provided on one side of the workbench, and slide grooves are provided on the inner walls of both sides of the groove along the length direction thereof, and a slide plate is provided inside the slide plate for sliding, and a plurality of placement grooves for placing O-rings are provided in an array on the slide plate, and a material receiving and feeding assembly is provided on one side of the workbench, and the material receiving and feeding assembly is used for feeding and receiving materials to the piston head, and a driving assembly is provided above the material receiving and feeding assembly, and the driving assembly not only controls the work of the material receiving and feeding assembly, but also drives the slide plate to slide back and forth, and a material pressing assembly assembly is provided above the driving assembly. The invention can not only realize the simultaneous loading, pressing assembly and unloading, but also, when loading and unloading, the slide plate reciprocates to realize the automatic loading of the O-ring falling, so that the continuous operation of the assembly is realized, thereby greatly improving the efficiency of the assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of sealing O-ring assembly, and in particular relates to a sealing O-ring assembly mechanism for an angiographic syringe. Background Art

[0002] The contrast injector is a medical device used to inject contrast agents into human blood vessels so that doctors can observe the morphology of a certain part of the human body or the vascular cavity. The contrast injector consists of a needle, an injection tube, a piston and a handle. The piston controls the injection of contrast agents, and the handle is used to operate the injector.

[0003] In order to ensure the sealing of the piston on the existing contrast injection syringe, a sealing O-ring needs to be sleeved on the piston to ensure sufficient sealing between it and the injection tube. The existing sealing O-rings are mostly assembled manually, and the manual assembly efficiency is low. Only a single sealing O-ring can be assembled each time. In addition, manual assembly requires manual loading and unloading, which is cumbersome and time-consuming. At the same time, it increases the manpower cost of the enterprise, which is not conducive to the needs of efficient production of the enterprise. For this reason, we propose a sealing O-ring assembly mechanism for contrast injection syringes. Summary of the invention

[0004] In order to solve the above problems, the object of the present invention is to provide a sealing O-ring assembly mechanism for an angiographic syringe.

[0005] To achieve the above-mentioned purpose, the present invention proposes an O-ring sealing assembly mechanism for an imaging syringe, comprising a workbench and a piston head for assembly, wherein a groove is provided on one side of the workbench, and slide grooves are provided on the inner walls of both sides of the groove along its length direction, a slide plate is provided inside the slide plate for sliding sliding, and a plurality of placement grooves for placing O-rings are provided in an array on the slide plate, a material receiving and feeding assembly is provided on one side of the workbench, and the material receiving and feeding assembly is used to feed and receive materials to the piston head, and a driving assembly is provided above the material receiving and feeding assembly, and the driving assembly not only controls the operation of the material receiving and feeding assembly, but also drives the slide plate to slide back and forth, and a material pressing assembly assembly is provided above the driving assembly, and the material pressing assembly assembly is used to drive the piston head to move downward and extrude and assemble with the O-ring and load and unload materials synchronously, and one side of the material pressing assembly assembly is provided with two support plates fixedly connected to the top of the workbench, and a material storage barrel is fixedly connected between the two support plates, and the material storage barrel is used to store O-rings.

[0006] Preferably, the material receiving and feeding assembly includes two conveyor belts, and the internal movable sleeves of the conveyor belts are provided with multiple conveyor rollers, both ends of the conveyor rollers are rotatably connected to side plates, and one end of the side plates is fixedly connected to the workbench, one end of one of the conveyor rollers is fixedly connected to a transmission shaft, and the ends of the two transmission shafts close to each other are fixedly connected to the first driven bevel gear.

[0007] Preferably, the drive assembly includes a fixed rod fixedly connected to two adjacent side plates, a double-axis motor is fixedly connected between the two fixed rods, the bottom end of the double-axis motor is fixedly connected to the first active bevel gear, and the first active bevel gear is meshed with the first driven bevel gear for transmission, the top output shaft of the double-axis motor is fixedly connected to the second active bevel gear, one side of the second active bevel gear is provided with a fixed plate fixedly connected to the side plate, a bearing is fixedly connected between the two fixed plates, a reciprocating screw rod is provided inside the bearing, one end of the reciprocating screw rod is fixedly connected to the second driven bevel gear, and the second active bevel gear is meshed with the second driven bevel gear for transmission, the external thread sleeve of the reciprocating screw rod is provided with a movable plate, one side of the movable plate is fixedly connected to two push-pull rods, and the end of the push-pull rod away from the movable plate is fixedly connected to the slide plate.

[0008] Preferably, the pressing assembly component includes a horizontal plate fixedly connected to one side of the workbench, two push rod motors are fixedly connected to the bottom of the horizontal plate, the output shafts of the push rod motors are fixedly connected to a lifting frame, a driving motor is provided inside the lifting frame, the output shaft of the driving motor is fixedly connected to a rotating plate, an air suction pump is installed on the top of the rotating plate, the air suction port of the air suction pump is fixedly connected to a transition tube connected thereto, a plurality of fixed pipes connected thereto are fixedly sleeved on the transition tube, a solenoid valve and an air intake valve are installed on the fixed pipe, a suction cup is fixedly connected to the bottom end of the fixed pipe, a plurality of positioning plates are fixedly connected to the top of the rotating plate, and the fixed pipe sleeve is arranged in the positioning plate.

[0009] Preferably, the placement groove includes a large circle groove and a small circle groove, and the large circle groove is located above the small circle groove, the diameter of the large circle groove is larger than the diameter of the small circle groove, the large circle groove is used to place the O-ring, and the small circle groove is adapted to the piston head.

[0010] Preferably, convex strips are provided on both sides of the slide plate, and the convex strips are slidably arranged in the slide grooves.

[0011] Preferably, a plurality of observation ports are arranged in an array on the storage barrel, through which the number of stored O-rings can be observed.

[0012] Preferably, two support rods are fixedly connected to one side of the bottom of the workbench, and a vertical plate for matching support is provided on the side of the bottom of the side panel away from the workbench.

[0013] Preferably, the conveyor belt located on the left side is used to convey the assembled piston head, and the conveyor belt located on the right side is used to convey the unassembled piston head.

[0014] The sealing O-ring assembly mechanism for contrast syringes proposed by the present invention can bring the following beneficial effects:

[0015] The pressing assembly component can realize the three steps of loading, pressing assembly and unloading at the same time, which greatly improves the assembly efficiency of O-rings and enables continuous assembly.

[0016] The driving assembly can not only drive the feeding assembly to work, wherein the feeding assembly can synchronously receive and feed the O-ring, but also drive the slide plate to slide. The slide plate slides at the bottom of the storage barrel to allow the O-ring in the storage barrel to fall down and be automatically loaded, thereby facilitating subsequent assembly;

[0017] In summary, this solution has a simple structure and novel design. It can not only realize loading, pressing assembly and unloading at the same time, but also, during loading and unloading, the slide plate moves back and forth to realize automatic loading of the O-ring falling, thus realizing continuous assembly operation and greatly improving assembly efficiency.

[0018] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] In the attached picture:

[0020] Figure 1 It is a front view structural schematic diagram of the present invention.

[0021] Figure 2 It is a side structural schematic diagram of the present invention.

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.

[0025] Figure 6 It is a partially cutaway three-dimensional structural schematic diagram of the material receiving and delivering component of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the driving component of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the pressing assembly component of the present invention.

[0028] Fig. 9 It is a schematic diagram of the exploded three-dimensional structure of the workbench and the slide plate of the present invention.

[0029] In the figure: 1 workbench, 2 slide, 3 slide plate, 4 placement slot, 5 material receiving and feeding assembly, 501 conveyor belt, 502 conveyor roller, 503 side plate, 504 transmission shaft, 505 first driven bevel gear, 6 driving assembly, 601 fixed rod, 602 double-axis motor, 603 first active bevel gear, 604 second active bevel gear, 605 fixed plate, 606 bearing, 607 reciprocating screw, 608 second driven bevel gear, 609 moving plate, 610 push-pull rod, 7 material pressing assembly, 701 horizontal plate, 702 push rod motor, 703 lifting frame, 704 driving motor, 705 rotating plate, 706 suction pump, 707 transition tube, 708 fixed tube, 709 solenoid valve, 710 air intake valve, 711 suction cup, 712 positioning plate, 8 support plate, 9 material storage tube, 10 support rod.

[0030] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0031] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

[0035] like Figures 1 to 9 As shown, an embodiment of the present invention proposes an O-ring sealing assembly mechanism for an angiographic syringe, comprising a workbench 1 and a piston head for assembly, a groove is provided on one side of the workbench 1, and slide grooves 2 are provided on the inner walls of both sides of the groove along its length direction, a slide plate 3 is provided inside the slide groove 2 for sliding, and a plurality of placement grooves 4 for placing O-rings are provided in an array on the slide plate 3, a material receiving and feeding assembly 5 is provided on one side of the workbench 1, and the material receiving and feeding assembly 5 is used to feed and receive materials to the piston head, and a driving assembly 6 is provided above the material receiving and feeding assembly 5, and the driving assembly 6 not only controls the operation of the material receiving and feeding assembly 5, but also drives the slide plate 3 to slide back and forth, and a material pressing assembly assembly 7 is provided above the driving assembly 6, and the material pressing assembly assembly 7 is used to drive the piston head to move downward and extrude and assemble with the O-ring and load and unload materials synchronously, and one side of the material pressing assembly assembly 7 is provided with two support plates 8 fixedly connected to the top of the workbench 1, and a material storage barrel 9 is fixedly connected between the two support plates 8, and the material storage barrel 9 is used to store O-rings.

[0036] like Figure 5 and Figure 6 As shown, the material receiving and feeding component 5 includes two conveyor belts 501, and the internal movable sleeve of the conveyor belt 501 is provided with a plurality of conveyor rollers 502. Both ends of the conveyor rollers 502 are rotatably connected to the side plates 503, and one end of the side plates 503 is fixedly connected to the workbench 1, one end of one of the conveyor rollers 502 is fixedly connected to the transmission shaft 504, and the ends of the two transmission shafts 504 close to each other are fixedly connected to the first driven bevel gear 505, the driving component 6 drives the first driven bevel gear 505 to rotate, and the first driven bevel gear 505 drives the transmission shaft 504 to rotate, and the transmission shaft 504 will drive the conveyor roller 502 to rotate, so that the conveyor roller 502 will drive the conveyor belt 501 to rotate, and the two conveyor belts 501 will rotate alternately, so as to realize one feeding and one receiving.

[0037] like Figure 6 , Figure 7 and Fig. 9As shown, the driving assembly 6 includes a fixed rod 601 fixedly connected to two adjacent side plates 503, a double-axis motor 602 is fixedly connected between the two fixed rods 601, a first active bevel gear 603 is fixedly connected to the bottom end of the double-axis motor 602, and the first active bevel gear 603 is meshed with the first driven bevel gear 505 for transmission, a second active bevel gear 604 is fixedly connected to the top output shaft of the double-axis motor 602, a fixed plate 605 fixedly connected to the side plate 503 is provided on one side of the second active bevel gear 604, a bearing 606 is fixedly connected between the two fixed plates 605, a reciprocating screw rod 607 is sleeved inside the bearing 606, a second driven bevel gear 608 is fixedly connected to one end of the reciprocating screw rod 607, and the second active bevel gear 604 is meshed with the second driven bevel gear 608 for transmission. The external threaded sleeve of the reciprocating screw 607 is provided with a moving plate 609, and two push-pull rods 610 are fixedly connected to one side of the moving plate 609, and the end of the push-pull rod 610 away from the moving plate 609 is fixedly connected to the slide plate 3, and the double-axis motor 602 drives the first driven bevel gear 505 meshing with it to rotate through the first active bevel gear 603, and at the same time, the double-axis motor 602 also drives the second driven bevel gear 608 meshing with it to rotate through the second active bevel gear 604, and the second driven bevel gear 608 drives the reciprocating screw 607 to rotate, and the rotation of the reciprocating screw 607 will drive the moving plate 609 and the push-pull rod 610 to reciprocate, and the push-pull rod 610 drives the slide plate 3 to reciprocate, so that the slide plate 3 moves at the bottom of the storage barrel 9, so that the O-ring in the storage barrel 9 automatically falls into the placement groove 4.

[0038] like Figure 5 and Figure 8 As shown, the pressing assembly component 7 includes a horizontal plate 701 fixedly connected to one side of the workbench 1, two push rod motors 702 are fixedly connected to the bottom of the horizontal plate 701, the output shaft of the push rod motor 702 is fixedly connected to a lifting frame 703, a driving motor 704 is arranged inside the lifting frame 703, the output shaft of the driving motor 704 is fixedly connected to a rotating plate 705, an air suction pump 706 is installed on the top of the rotating plate 705, the air suction port of the air suction pump 706 is fixedly connected to a transition tube 707 connected thereto, and a fixed sleeve is arranged on the transition tube 707 to connect thereto There are multiple fixed tubes 708 connected to each other, and a solenoid valve 709 and an air intake valve 710 are installed on the fixed tube 708. The bottom end of the fixed tube 708 is fixedly connected with a suction cup 711, and the top of the rotating plate 705 is fixedly connected with multiple positioning plates 712, and the fixed tube 708 is sleeved in the positioning plate 712. The push rod motor 702 drives the lifting frame 703 to rise and fall, so that the lifting frame 703 drives the suction cup 711 to rise and fall, and the suction pump 706 sucks air into the suction cup 711 through the fixed tube 708, so that the suction cup 711 will adsorb the piston head and drive it to rotate and rise and fall.

[0039] like Fig. 9As shown, the placement groove 4 includes a large circle groove and a small circle groove, and the large circle groove is located above the small circle groove. The diameter of the large circle groove is larger than the diameter of the small circle groove. The large circle groove is used to place the O-ring, and the small circle groove is adapted to the piston head. In this way, the piston head moves down and passes through the O-ring in the large circle groove before inserting into the small circle groove, so that the O-ring is assembled on the piston head and leaves the placement groove 4 together with the piston head.

[0040] like Fig. 9 As shown, convex strips are provided on both sides of the slide plate 3, and the convex strips are slidably arranged in the slide groove 2, and the slide plate 3 is guided to move by the convex strips.

[0041] like Figure 5 As shown, a plurality of observation ports are arranged in an array on the storage barrel 9, through which the number of stored O-rings can be observed.

[0042] like Figure 4 As shown, two support rods 10 are fixedly connected to one side of the bottom of the workbench 1, and a vertical plate for supporting is provided on the side of the bottom of the side plate 503 away from the workbench 1.

[0043] like Figure 6 As shown, the conveyor belt 501 on the left is used to convey the assembled piston head, and the conveyor belt 501 on the right is used to convey the unassembled piston head, so that the feeding and receiving of the piston head can be carried out synchronously.

[0044] Working principle: the unassembled piston head is placed equidistantly on the conveyor belt 501 on the right. During assembly, the push rod motor 702 drives the lifting frame 703 to move downward, and the lifting frame 703 drives the suction cup 711 to move down and close to the surface of the piston head. At this time, the suction pump 706 sucks air into the suction cup 711 through the fixed pipe 708, so that the suction cup 711 will adsorb the piston head. At this time, the solenoid valve 709 is opened and the air inlet valve 710 is closed, thereby ensuring the connection between the fixed pipe 708 and the suction cup 711, which is convenient for the suction pump 706 to suck air. A group of suction cups 711 close to the storage barrel 9 drives the piston head to move downward when moving downward. Before inserting into the small circle groove, it first passes through the O-shaped The piston head is moved to the left side of the conveyor belt 501, and the solenoid valve 709 on the left side of the conveyor belt 501 is closed, and the air inlet valve 710 is opened, so that the outside air can enter the fixed pipe 708 under the solenoid valve 709, so that the suction cup 711 below replenishes the air and stops adsorption, and the piston head on the suction cup 711 falls to the conveyor belt 501. On the conveyor belt 501, similarly, the suction cup 711 on the conveyor belt 501 on the right side will drive the adsorbed piston head to the top of the slide plate 3, and then the double-axis motor 602 drives the first driven bevel gear 505 meshing therewith to rotate through the first active bevel gear 603, and the first driven bevel gear 505 drives the transmission shaft 504 to rotate, and the transmission shaft 504 drives the conveyor roller 502 to rotate, so that the conveyor roller 502 drives the conveyor belt 501 to rotate, and the two conveyor belts 501 will rotate alternately, so as to realize one feeding and one receiving, and the double-axis motor 602 also drives the second driven bevel gear 608 meshing therewith to rotate through the second active bevel gear 604, and the second driven bevel gear The bevel gear 608 drives the reciprocating screw 607 to rotate, and the rotation of the reciprocating screw 607 drives the movable plate 609 and the push-pull rod 610 to move back and forth, and the push-pull rod 610 drives the slide plate 3 to move back and forth, so that the slide plate 3 moves at the bottom of the storage barrel 9, so that the O-ring in the storage barrel 9 automatically falls into the placement groove 4 for replenishment, which is convenient for the subsequent piston head to move down for assembly. After the two conveyor belts 501 rotate alternately for a distance, the dual-axis motor 602 stops working, and during the period of its working, the reciprocating screw 607 just drives the slide plate 3 to move back and forth one round trip, that is, the slide plate 3 moves at the bottom of the storage barrel 9 to replenish the O-ring and finally reset.

[0045] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0046] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A sealing O-ring assembly mechanism for an angiographic syringe, comprising a workbench (1) and a piston head for assembly, characterized in that: A groove is provided on one side of the workbench (1), and slide grooves (2) are provided on the inner walls of both sides of the groove along the length direction thereof. A slide plate (3) is provided inside the slide plate (2) for sliding movement, and a plurality of placement grooves (4) for placing O-rings are provided in an array on the slide plate (3). A material receiving and feeding assembly (5) is provided on one side of the workbench (1), and the material receiving and feeding assembly (5) is used to feed and receive materials to the piston head. A driving assembly (6) is provided above the material receiving and feeding assembly (5), and the driving assembly (6) not only controls the operation of the material receiving and feeding assembly (5), but also drives the slide plate (3) to slide back and forth. A material pressing assembly assembly (7) is provided above the driving assembly (6), and the material pressing assembly assembly (7) is used to drive the piston head to move downward to extrude and assemble with the O-ring and load and unload materials synchronously. Two support plates (8) are provided on one side of the material pressing assembly assembly (7) and are fixedly connected to the top of the workbench (1). A material storage barrel (9) is fixedly connected between the two support plates (8), and the material storage barrel (9) is used to store O-rings. The material pressing assembly component (7) comprises a horizontal plate (701) fixedly connected to one side of the workbench (1), two push rod motors (702) are fixedly connected to the bottom of the horizontal plate (701), the output shafts of the push rod motors (702) are fixedly connected to a lifting frame (703), a driving motor (704) is provided inside the lifting frame (703), the output shaft of the driving motor (704) is fixedly connected to a rotating plate (705), and a suction pump (706) is installed on the top of the rotating plate (705). The air intake port of the air intake pump (706) is fixedly connected to a transition tube (707) in communication with the transition tube (707), a plurality of fixed tubes (708) in communication with the transition tube (707) are fixedly sleeved on the transition tube (707), a solenoid valve (709) and an air intake valve (710) are installed on the fixed tube (708), a suction cup (711) is fixedly connected to the bottom end of the fixed tube (708), a plurality of positioning plates (712) are fixedly connected to the top of the rotating plate (705), and the fixed tube (708) is sleeved in the positioning plate (712).

2. The sealing O-ring assembly mechanism for an angiographic syringe according to claim 1, characterized in that: The material receiving and conveying assembly (5) comprises two conveyor belts (501), wherein a plurality of conveyor rollers (502) are movably sleeved inside the conveyor belts (501), both ends of the conveyor rollers (502) being rotatably connected to side plates (503), and one end of the side plates (503) being fixedly connected to the workbench (1), one end of one of the conveyor rollers (502) being fixedly connected to a transmission shaft (504), and the ends of the two transmission shafts (504) close to each other are both fixedly connected to a first driven bevel gear (505).

3. The sealing O-ring assembly mechanism for an angiographic syringe according to claim 2, characterized in that: The driving assembly (6) comprises a fixing rod (601) fixedly connected to two adjacent side plates (503); a double-axis motor (602) is fixedly connected between the two fixing rods (601); a first driving bevel gear (603) is fixedly connected to the bottom end of the double-axis motor (602); the first driving bevel gear (603) is meshed with a first driven bevel gear (505) for transmission; a second driving bevel gear (604) is fixedly connected to the top output shaft of the double-axis motor (602); and a fixing plate (605) fixedly connected to the side plate (503) is provided on one side of the second driving bevel gear (604). A bearing (606) is fixedly connected between the two fixed plates (605), a reciprocating screw (607) is sleeved inside the bearing (606), one end of the reciprocating screw (607) is fixedly connected to a second driven bevel gear (608), and the second active bevel gear (604) is meshed with the second driven bevel gear (608) for transmission, and a movable plate (609) is sleeved on the external thread of the reciprocating screw (607), one side of the movable plate (609) is fixedly connected to two push-pull rods (610), and one end of the push-pull rod (610) away from the movable plate (609) is fixedly connected to the slide plate (3).

4. The sealing O-ring assembly mechanism for an angiographic syringe according to claim 1, characterized in that: The placement groove (4) comprises a large circle groove and a small circle groove, and the large circle groove is located above the small circle groove, the diameter of the large circle groove is larger than the diameter of the small circle groove, the large circle groove is used to place the O-ring, and the small circle groove is adapted to the piston head.

5. The sealing O-ring assembly mechanism for an angiographic syringe according to claim 1, characterized in that: The slide plate (3) is provided with convex strips on both sides, and the convex strips are slidably arranged in the slide groove (2).

6. The sealing O-ring assembly mechanism for an angiographic syringe according to claim 1, characterized in that: The storage barrel (9) is provided with a plurality of observation ports in an array, through which the number of stored O-rings can be observed.

7. The sealing O-ring assembly mechanism for an angiographic syringe according to claim 2, characterized in that: Two support rods (10) are fixedly connected to one side of the bottom of the workbench (1), and a vertical plate for supporting is provided on the side of the bottom of the side plate (503) away from the workbench (1).

8. The sealing O-ring assembly mechanism for an angiographic syringe according to claim 2, characterized in that: The conveyor belt (501) located on the left side is used to convey the assembled piston head, and the conveyor belt (501) located on the right side is used to convey the unassembled piston head.

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