Assembly method and transfer assembly mechanism

Abstract

The present invention relates to an assembly method and a transfer assembly mechanism, which are used to assemble a sealing body to an accessory to obtain a medical consumables assembly. The assembly method includes the following steps: S10, using a material picking assembly to obtain the sealing body, and connecting the material picking assembly and the sealing body as a whole; S20, adjusting the position of the material picking assembly so that the sealing body points to the end of the accessory; S30, transferring the sealing body from the material picking assembly to the accessory so that the sealing body and the accessory form a circumferential fit; the transfer assembly includes: a material picking assembly, which is used to obtain the sealing body and can be connected to the sealing body as a whole; a transfer assembly, which can transfer the sealing body by driving the material picking assembly and the accessory to move relative to each other, and make the end of the sealing body face the end of the accessory; a transfer assembly, which can drive the sealing body to transfer to the accessory when the end of the sealing body faces the end of the accessory.

Description

Technical Field

[0001] The present invention relates to the technical field of medical consumables production, and in particular to an assembly method and a transfer assembly mechanism. Background Art

[0002] The most common application scenario of medical consumables is to inject fluid substances into the human body or specific lesions, such as medicines, physiological regulation, diagnosis and treatment, or replenishment solutions. It can be seen that ensuring that medical consumables have good sealing performance is of great significance for maintaining the cleanliness and hygiene of the fluid substances inside them and meeting specific storage requirements. Taking the most commonly used medical syringe as an example, it includes an injection tube for containing fluid substances and a push rod that can be partially extended or retracted into the tube body. The outer periphery of the push rod part that is always located in the injection tube is provided with a sealing body, which is used to fill the gap between the outer periphery of the push rod and the inner wall of the injection tube so that the two form a dynamic seal.

[0003] In order to ensure a good seal between the push rod and the inner wall of the injection tube, there must be sufficient pre-pressure between the sealing body and the push rod to avoid a gap between the push rod and the sealing body. However, this will make it difficult to assemble the sealing body and the push rod. Putting the sealing body on the outer periphery of the push rod is not only more laborious, but also prone to rupture of the sealing body, oval deformation of the sealing body, bending or even breakage of the push rod. The yield rate after assembly is low, and the assembly efficiency will also increase and decrease with the increase of assembly difficulty. Summary of the Invention

[0004] In view of this, it is necessary to provide an assembly method of a sealing body and accessories, wherein the sealing body and accessories are applied to medical consumables, and the assembly method comprises the following steps:

[0005] S10, using the material taking component to obtain the sealing body, and connecting the material taking component and the sealing body into one;

[0006] S20, adjusting the position of the material taking component so that the sealing body points to the end of the accessory;

[0007] S30, transferring the sealing body from the material taking assembly to the accessory, so that the sealing body and the accessory form a circumferential fit.

[0008] The assembly method and transfer assembly mechanism provided by the present invention have at least the following beneficial effects:

[0009] 1) After the material removal assembly and the sealing body are connected as one, the position / orientation angle of the material removal assembly relative to the accessory is directly adjusted, thereby indirectly adjusting the position / orientation angle of the sealing body relative to the accessory. This reduces the difficulty of adjusting the relative position of the accessory and the sealing body before assembly. The adjustment process is simplified and traceable. The material removal assembly can be used as a judgment basis for judging whether the relative position between the sealing body and the accessory meets the assembly process requirements.

[0010] 2) Under the premise that the material picking component controls / constrains the sealing body to point to the end of the accessory, the transfer operation of the sealing body can ensure that the sealing body can correctly form a circumferential fit with the accessory, eliminating the possibility of assembly failure, sealing body rupture or ovalization / elongation deformation due to inaccurate alignment between the sealing body and the accessory, and greatly improving the yield rate and assembly efficiency after assembly.

[0011] In one embodiment, step S10, i.e., obtaining the sealing body by using the material taking component and connecting the material taking component and the sealing body into one body, includes:

[0012] The picking assembly has a first positioning reference, which is used to define the position of the sealing body relative to the picking assembly in the radial direction.

[0013] With this arrangement, the sealing body and the material-taking assembly are connected together to form a tighter fit, and the sealing body is not easy to shake or deflect radially relative to the material-taking assembly. This is conducive to improving the accuracy of relative position adjustment of the sealing body and accessories, and there will be no large relative position deviation between the two, which is beneficial to subsequent assembly.

[0014] In one embodiment, the assembly method further comprises the following steps:

[0015] S15. Using a material stabilizing assembly to support accessories; wherein:

[0016] The material stabilizing assembly has a second positioning reference, and the second positioning reference is used to define the position of the accessory relative to the material stabilizing assembly in its radial direction;

[0017] Step S20, i.e. adjusting the position of the material taking component so that the sealing body points to the end of the accessory, includes the following steps:

[0018] S21. Adjust the position and / or angle of the material taking assembly relative to the material stabilizing assembly so that the first positioning reference and the second positioning reference point to each other.

[0019] With this arrangement, the material stabilizing assembly can first ensure the shape and dimensional stability of the accessory, preventing the material taking assembly from misaligning with the accessory due to accidental shaking of the accessory; in addition, in the process of transferring the sealing body to the accessory, the material stabilizing assembly can provide sufficient auxiliary support for the accessory to enhance its effect of resisting the force of the sealing body, preventing it from bending or shaking under the force of the sealing body, thereby improving the success rate of assembly; the positioning references of the material taking assembly and the material stabilizing assembly point to each other, which means that the sealing body can point to the end of the accessory more accurately, thereby making the alignment of the two before assembly more accurate and the alignment error smaller, and the probability of ovalization / elongation of the sealing body, breakage of the sealing body and other defects after assembly is significantly reduced.

[0020] In one embodiment, step S21, i.e., adjusting the position and / or angle of the material taking assembly relative to the material stabilizing assembly so that the first positioning reference and the second positioning reference point toward each other, includes the following steps:

[0021] S211. Adjust at least one of the material taking assembly and the material stabilizing assembly so that the first positioning reference and the second positioning reference are collinear.

[0022] With this arrangement, the sealing body and the accessories can be coaxially aligned before assembly, and the axes of the two and the first positioning reference and the second positioning reference are all collinear. In this way, an axial force directed towards the accessories can be directly applied to the sealing body to quickly complete the transfer and assembly of the sealing body. During the transfer process, the various parts of the sealing body on the circumference are subjected to uniform force. After assembly, the internal stress distribution of the various parts of the sealing body on the circumference is balanced, and the sealing body and accessories assembled as one are firmly connected and not easy to separate.

[0023] In one embodiment, step S21, i.e., adjusting the position and / or angle of the material taking assembly relative to the material stabilizing assembly so that the first positioning reference and the second positioning reference point toward each other, includes the following steps:

[0024] S212, driving the end of the material taking component and the accessory to conform to each other, so that the material taking component and the accessory are relatively fixed.

[0025] With this arrangement, after the relative position between the material-picking assembly and the accessory is adjusted, the two can further consolidate the position adjustment result of the previous step through contour-adaptive fixed cooperation, ensuring that the first positioning reference and the second positioning reference can always point to each other, eliminating the accidental relative movement between the material-picking assembly and the accessory during the transfer of the sealing body to the accessory, thereby causing transfer or assembly failure.

[0026] In one embodiment, step S10, i.e., obtaining the sealing body by using the material taking component and connecting the material taking component and the sealing body into one body, includes the following steps:

[0027] S11, the material taking component moves relatively close to the sealing body along the first positioning reference.

[0028] With such an arrangement, when the material-picking assembly is picking up the sealing body, the sealing body is stationary relative to the material-picking assembly in the radial direction. This is more conducive to the material-picking assembly correctly picking up the sealing body and preventing the material-picking assembly from accidentally damaging the sealing body due to the relative position error between the material-picking assembly and the sealing body in the radial direction of the sealing body.

[0029] In one embodiment, the sealing body is a hollow structure; step S11, i.e., the material taking component moves relatively close to the sealing body along the first positioning reference, includes the following steps:

[0030] S111. The material taking component passes through the sealing body, and the axis of the sealing body is aligned with the first positioning reference.

[0031] With this arrangement, the material-taking component coaxially penetrates the sealing body. Once the penetration is completed, it indicates that the sealing body and the material-taking component are coaxially adapted and connected as one. In addition, the material-taking component can also apply a balanced radial outward expansion force to the inner circumference of the sealing body, which can expand the through-hole area of the sealing body to a certain extent, facilitate the transition of the sealing body from the material-taking component to the accessory, and reduce the resistance of the sealing body when the accessory is sleeved. When the shape of the sealing body is circular, the coaxial penetration can improve the roundness of the sealing body, making its shape closer to a regular circle, and reducing the difficulty of assembly rotation.

[0032] In one embodiment, step S30, i.e., transferring the sealing body from the material taking assembly to the accessory so that the sealing body and the accessory form a circumferential fit, includes the following steps:

[0033] S31, placing the transfer assembly against the end of the sealing body facing away from the accessory, and using the transfer assembly to push the sealing body to slide relative to the material taking assembly.

[0034] With this arrangement, the transfer assembly can apply a balanced thrust to the end of the sealing body away from the accessory, which will not cause local excessive or insufficient force in the circumferential direction of the sealing body, thereby eliminating the possibility of elliptical deformation of the sealing body during the transfer and assembly process.

[0035] The present invention further provides a transfer assembly mechanism for transferring a sealing body and assembling the sealing body to an accessory. The transfer assembly mechanism includes:

[0036] A material taking component, used for taking the sealing body and capable of being connected to the sealing body as a whole;

[0037] The transfer assembly can transfer the sealing body by driving the material taking assembly and the accessory to move relative to each other, and make the end of the sealing body face the end of the accessory;

[0038] The transfer assembly can drive the sealing body to transfer toward the accessory when the end of the sealing body faces the end of the accessory.

[0039] In one embodiment, the take-out assembly has a first positioning reference for defining the position of the sealing body relative to the take-out assembly in its radial direction;

[0040] The transfer assembly mechanism further includes a material stabilizing component for carrying the accessory, the material stabilizing component having a second positioning reference for defining the position of the accessory relative to the material stabilizing component in its radial direction;

[0041] The transfer assembly drives and connects the material taking assembly or the material stabilizing assembly, and adjusts the position and / or angle of the material taking assembly relative to the material stabilizing assembly so that the first positioning reference and the second positioning reference point to each other.

[0042] In one embodiment, the transfer assembly drives the material taking assembly, and the first positioning reference and the second positioning reference are made collinear by adjusting the material taking assembly.

[0043] In one embodiment, the transfer assembly includes a first pushing portion for connecting to the sealing body and a transfer driving portion, wherein the transfer driving portion is capable of driving the first pushing portion to move relatively close to the accessory.

[0044] In one embodiment, the material picking assembly has a first positioning reference for limiting the position of the sealing body relative to the material picking assembly in its radial direction, and the material picking assembly also includes an adapter portion for forming a circumferential fit with the sealing body, and the first positioning reference is the axis of the adapter portion; the first pushing portion is movably arranged in the axial direction of the adapter portion.

[0045] In one embodiment, the adapting portion is used to penetrate the sealing body and cooperate with the inner wall of the through hole of the sealing body, and the first pushing portion is sleeved on the outer periphery of the adapting portion.

[0046] With this arrangement, when the sealing body is located in the material taking assembly, it first circumferentially cooperates with the adapter portion, and then transitions to the accessory and circumferentially cooperates with the outer periphery of the accessory. The first pushing portion can be used to axially push the end of the sealing body away from the accessory.

[0047] In one embodiment, the transfer assembly drives the material picking assembly and the accessory to move relative to each other so that the sealing body faces the end of the accessory. The transfer assembly is movably connected to the material picking assembly and can follow the transfer power output of the transfer assembly and the synchronous translation movement of the material picking assembly.

[0048] With this arrangement, the picking component can adjust its position / orientation angle relative to the accessory through translation. During the position adjustment process of the picking component, the transfer component and the picking component are always relatively stationary, which can ensure that the initial position of the transfer component relative to the sealing body remains unchanged. After the picking component stops translation, the transfer component can immediately start driving the transfer sealing body.

[0049] In one embodiment, the transfer assembly drives the material picking assembly to flip over a preset angle so that the sealing body faces the end of the accessory. The transfer assembly is operatively connected to the material picking assembly and can follow the transfer power output of the transfer assembly and the material picking assembly to flip over the preset angle synchronously.

[0050] With such arrangement, the position / orientation angle of the material taking component relative to the accessory can be adjusted by rotating it.

[0051] In one embodiment, the transfer assembly can drive the material taking assembly to conform to the end of the accessory and fix them relatively.

[0052] In one embodiment, the transfer assembly mechanism also includes a transfer component, and at least one of the transfer component and the material picking component can move relatively close to the other so that the transfer component can obtain the sealing body, and the transfer component can move relatively close to the accessory together with the sealing body so that the end of the sealing body is facing the end of the accessory.

[0053] This arrangement allows for differentiated design of the sealant's structure within the adapter and transfer assembly, both in the retrieving assembly and in the transfer assembly. For example, the adapter's end could be chamfered or rounded to reduce the difficulty of retrieving the sealant and the extent of damage to the sealant. The transfer assembly's structures for retrieving the sealant and transferring the sealant to the accessory could then be configured to match the accessory's dimensions and facilitate transfer of the sealant thereto. This prevents the chamfered or rounded corners of the adapter from interfering with the transfer of the sealant from the adapter to the accessory.

[0054] In one embodiment, the transfer assembly includes a first transfer unit and a second transfer unit, and the transfer assembly can repeatedly switch the material taking assembly to be in the loading position or the transfer position, and can repeatedly switch the second transfer unit to be in the transfer position or the assembly position;

[0055] The material taking component obtains the sealing body when it is in the loading position, and guides the sealing body to be transferred to the first transfer unit when it is in the transfer position; the second transfer unit obtains the sealing body when it is in the transfer position, and guides the sealing body to be transferred to the accessory when it is in the assembly position.

[0056] In one embodiment, the transfer assembly includes a first pushing portion, a second pushing portion, and a third pushing portion movably connected to the material taking assembly, the first transfer unit, and the second transfer unit, respectively;

[0057] When the material taking component is at the transfer position, it points to the first transfer unit. In response to the material taking component being at the transfer position, the first pushing portion pushes the sealing body toward the first transfer unit.

[0058] The second transfer unit points to the first transfer unit when it is in the transfer position, and the second pushing portion pushes the sealing body toward the second transfer unit in response to the second transfer unit being in the transfer position;

[0059] The second transfer unit points to the accessory when in the assembly position, and the third pushing portion pushes the sealing body toward the accessory in response to the second transfer unit being in the assembly position. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 This is a schematic structural diagram of a transfer assembly mechanism according to an embodiment of the present invention at a first viewing angle;

[0061] Figure 2 for Figure 1The partial enlarged schematic diagram of the transfer assembly mechanism at position X is shown;

[0062] Figure 3 This is a schematic structural diagram of a transfer assembly mechanism according to an embodiment of the present invention at a second viewing angle;

[0063] Figure 4 for Figure 3 The partial enlarged schematic diagram of the transfer assembly mechanism at position Y is shown;

[0064] Figure 5 A partial structural diagram of a transfer assembly mechanism according to an embodiment of the present invention;

[0065] Figure 6 Schematic diagram of the structure of the transfer component of the transfer assembly mechanism according to one embodiment of the present invention.

[0066] Description of reference numerals:

[0067] 100. Transfer assembly mechanism; 200. Push rod;

[0068] 10. Material picking assembly; 11. Adapter; 20. Transfer assembly; 30. Transfer assembly; 31. First pushing part; 32. Transfer drive part; 33. First transfer part; 34. Second transfer part; 351. Second pushing part; 352. First transfer drive source; 361. Third pushing part; 362. Second transfer drive source; 40. Material stabilizing assembly; 50. Positioning assembly. DETAILED DESCRIPTION

[0069] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0070] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0071] The present invention provides an assembly method for an assembly body of medical consumables, and provides a transfer assembly mechanism 100 capable of executing the assembly method. The assembly body includes a sealing body and an accessory, and the assembly method is used to assemble the sealing body to a specific position on the accessory, so that the accessory can adapt to other components and form a sealed fit. The present invention does not specifically limit the type of medical consumables. The following takes the assembly process of the push rod 200 and the sealing ring of a medical syringe as an example to explain in detail the steps of the above-mentioned assembly method and the structure and principle of the transfer assembly mechanism 100. The above-mentioned accessories and the sealing body are the push rod 200 and the sealing ring, respectively.

[0072] In a medical syringe, the portion of the push rod 200 that is always located within the syringe is sheathed with a hollow sealing ring. The inner circumferential wall of the sealing ring is in sealing contact with the outer wall of the push rod 200, and the outer circumferential wall of the sealing ring is used to contact the inner wall of the syringe. Of course, in other embodiments, the sealing body can also be a non-hollow structure, and the accessory does not necessarily need to be the push rod 200. For example, the accessory can have a structure with a hollow channel, and the sealing body is a solid structure and is used to seal the hollow channel opening of the accessory.

[0073] First, the assembly method is introduced, which includes the following steps:

[0074] S10, using the material taking component 10 to obtain the sealing body, and connecting the material taking component 10 and the sealing body into one body;

[0075] S20, adjusting the position of the material taking component 10 so that the sealing body points to the end of the accessory;

[0076] S30, transferring the sealing body from the material taking assembly 10 to the accessory, so that the sealing body and the accessory form a circumferential fit.

[0077] Steps S10 and S20 together reveal that, after the retrieving assembly 10 has received the sealing ring, it and the sealing ring become a relatively stationary unit. By adjusting the position of the retrieving assembly 10 relative to the push rod 200, that is, the position and posture / orientation angle of the retrieving assembly 10 relative to the push rod 200, the position and orientation angle of the sealing ring relative to the push rod 200 are indirectly adjusted. When the normal direction of the end of the sealing ring points toward the end of the push rod 200, the pre-assembly position adjustment between the sealing ring and the push rod 200 has been successfully completed, and the sealing ring transfer operation can proceed.

[0078] Step S30 reveals that when the normal direction of the end of the sealing ring points to the end of the push rod 200, the sealing ring can first move relative to the material picking assembly 10 under the action of external force, and then detach from the material picking assembly 10. The part of the sealing ring that first detaches from the material picking assembly 10 smoothly transitions to the end of the push rod 200. Then, external force is continuously applied to the sealing ring, causing the remaining part of the sealing ring to transition to the end of the push rod 200. The external force is continuously applied to the sealing ring until the sealing ring reaches the designated assembly area on the push rod 200. Finally, the assembly area of the sealing ring and the push rod 200 forms a circumferential fit centered on the normal direction of the end of the push rod 200, and the circumferential side of the push rod 200 is sealed against the sealing ring.

[0079] For medical syringes, the assembly area of the push rod 200 is penetrated by a through hole for the sealing ring, and the inner wall of the sealing ring is in sealing contact with the outer wall of the assembly area; for other types of medical consumables, for example, the sealing body is a solid structure and the accessories are a structure with a hollow cavity, the sealing body will eventually close the opening of the hollow cavity, and the inner peripheral wall of the hollow cavity is in sealing contact with the outer side of the sealing body.

[0080] Step S10 specifically also includes the following limitations:

[0081] The material taking assembly 10 has a first positioning reference, which is used to define the position of the sealing body relative to the material taking assembly 10 in the radial direction.

[0082] The above definition reveals that: after the material-picking component 10 obtains the sealing ring, the freedom of the sealing ring to move in the radial direction relative to the material-picking component 10 is immediately restricted. In other words, once the material-picking component 10 obtains the sealing ring, no matter how the position / orientation angle of the material-picking component 10 relative to the push rod 200 is adjusted next, the material-picking component 10 and the sealing ring are always relatively fixed in the radial direction of the sealing ring. In this way, when the end of the sealing ring points normally to the end of the push rod 200, the sealing ring is not easy to move in its radial direction relative to the end of the push rod 200 under external interference, thereby improving the centering positioning accuracy of the sealing ring and the push rod 200 before assembly.

[0083] Optionally, the first positioning datum is a virtual reference line. After the retrieving assembly 10 retrieves the sealing body, the axis of the sealing ring coincides with the first positioning datum. The axis of the sealing body can be considered to occupy the line corresponding to the first positioning datum. Of course, the present invention does not specifically limit the shape of the sealing body. The sealing ring can be not only circular but also polygonal or elliptical. In this case, the axis of the sealing ring passes through the geometric center of the polygon or the midpoint of the major axis or minor axis of the ellipse and is perpendicular to the extended plane in which the sealing ring is located.

[0084] Furthermore, step S10 includes the following steps:

[0085] S11 , the material taking assembly 10 moves relatively close to the sealing body along the first positioning reference.

[0086] Step S11 reveals that the retrieving assembly 10 approaches the sealing ring along the direction of the first positioning datum and captures it. As previously mentioned, after the retrieving assembly 10 captures the sealing ring, the first positioning datum coincides with the axis of the sealing ring. Therefore, step S11 essentially defines that the retrieving assembly 10 approaches the sealing ring along its axis and is coaxially connected to the sealing ring.

[0087] Furthermore, step S11 includes the following steps:

[0088] S111 , the material taking component 10 passes through the sealing body, and makes the axis of the sealing body collinear with the first positioning reference.

[0089] Step S111 is specifically applicable to the assembly of the push rod 200 and a hollow sealing body, such as the assembly of the sealing ring and the push rod 200 in the medical syringe described in this specification. Step S111 discloses that the material dispensing assembly 10 coaxially penetrates the hollow sealing body. Once the material dispensing assembly 10 obtains the sealing ring, it can exert a balanced radial outward expansion force on the inner peripheral wall of the sealing body, which can expand the through-hole size of the sealing ring to a certain extent, facilitate the transition of the sealing ring from the material dispensing assembly 10 to the push rod 200, and reduce the resistance when the sealing ring is fitted over the push rod 200. In particular, when the sealing ring is circular in shape, the coaxial penetration can also improve the roundness of the sealing ring, making its shape closer to a regular circle.

[0090] Furthermore, the assembly method further comprises the following steps:

[0091] S15. Using the material stabilizing assembly 40 to carry the accessory; wherein the material stabilizing assembly 40 has a second positioning reference, and the second positioning reference is used to define the position of the accessory relative to the material stabilizing assembly 40 in its own radial direction;

[0092] Step S20 further includes the following steps:

[0093] S21. Adjust the position and / or angle of the material taking component 10 relative to the material stabilizing component 40 so that the first positioning reference and the second positioning reference point to each other.

[0094] Step S15 reveals that after the stabilizing assembly 40 applies a load / constraining force to the push rod 200, the push rod 200's freedom of movement in its radial direction relative to the stabilizing assembly 40 is restricted. Regardless of subsequent adjustments to the position / orientation of the retrieving assembly 10 relative to the push rod 200, the stabilizing assembly 40 consistently constrains the push rod 200 to remain fixed in its radial direction. This prevents the push rod 200 from radially swaying or deflecting due to the force of the sealing ring when the seal moves toward the push rod 200, thereby improving the yield rate and single-pass assembly success rate of the seal ring and push rod 200 assembly.

[0095] Optionally, the second positioning reference is a virtual reference straight line. When the material stabilizing assembly 40 carries the push rod 200, the axis of the push rod 200 coincides with the second positioning reference. It can be regarded that the axis of the push rod 200 occupies the straight line where the second positioning reference is located.

[0096] Steps S15 and S21 together reveal that, with the sealing ring radially fixed relative to the material retrieving assembly 10 and the push rod 200 radially fixed relative to the material stabilizing assembly 40, the first positioning datum and the second positioning datum are directed toward each other, which indirectly achieves the goal of the sealing ring axis and the push rod 200 axis pointing toward each other. This improves the success rate and accuracy of the sealing ring being smoothly separated from the material retrieving assembly 10 and simultaneously transitioned to the push rod 200 at the intersection of the first positioning datum and the second positioning datum, thereby preventing misalignment between the sealing ring and the push rod 200, which could cause the sealing ring to be blocked by the end of the push rod 200.

[0097] Furthermore, step S21 includes the following steps:

[0098] S211 , adjusting at least one of the material taking assembly 10 and the material stabilizing assembly 40 so that the first positioning reference and the second positioning reference are collinear.

[0099] Step S211 reveals that by directly adjusting the first positioning datum and the second positioning datum to be collinear, the axis of the sealing ring is aligned with the axis of the push rod 200 when the normal direction of the end of the sealing ring points to the end of the push rod 200. This greatly reduces the difficulty of the sealing ring's transition to the push rod 200, allowing the direct application of axial force to drive the sealing ring and push rod 200 to move relative to each other along their common axis, thereby fitting the sealing ring onto the push rod 200. The overall shape of the sealing ring fitted onto the push rod 200 is close to a regular circle, with less oval deformation, resulting in a more balanced contact pressure between the inner wall of the sealing ring and the outer periphery of the push rod 200 along the circumference of the push rod 200.

[0100] Furthermore, step S21 further includes the following steps:

[0101] S212: driving the material taking component 10 to conform to the end of the accessory, so that the material taking component 10 and the accessory are relatively fixed.

[0102] Specifically, the material picking component 10 includes an adapter part 11 for directly picking up the sealing ring and circumferentially cooperating with it. The end of the adapter part 11 that first extends into the sealing ring through hole and the end of the push rod 200 that first penetrates the sealing ring through hole have mutually matching surface shapes, and the two can fit together and then be fixed; step S212 reveals: after the relative position / orientation angle between the material picking component 10 and the push rod 200 is adjusted, the two can further consolidate the position adjustment result of the previous step through contour adaptation, ensuring that the first positioning reference and the second positioning reference can always point to each other, eliminating the accidental relative movement between the material picking component 10 and the push rod 200 during the transfer of the sealing ring to the push rod 200, thereby eliminating assembly failure.

[0103] Furthermore, step S30 includes the following steps:

[0104] S31 , placing the transfer assembly 30 against the end of the sealing body facing away from the accessory, and using the transfer assembly 30 to push the sealing body to slide relative to the material taking assembly 10 .

[0105] Step S31 reveals that: the transfer component 30 is used to apply a thrust directed to the push rod 200 to the sealing body at the end of the sealing ring away from the push rod 200 to complete the transfer and assembly of the sealing ring. In this way, the stress state of the sealing body is more reasonable and safe, and will not cause local excessive or insufficient stress in the circumferential direction of the sealing ring, nor will there be excessive shear force in a certain cross-section in the circumferential direction of the sealing ring, thereby eliminating the possibility of elliptical deformation of the sealing ring during the transfer and assembly process.

[0106] The following describes the structure and operating principle of the transfer assembly mechanism 100, which includes a retrieving assembly 10 for retrieving and integrally connecting the sealing ring to the sealing ring, a transfer assembly 20 capable of driving the integrally connected retrieving assembly 10, the sealing ring, and the push rod 200 for relative motion, and a transfer assembly 30 capable of driving the sealing ring to transfer toward the push rod 200 and be assembled to the push rod 200 when the end of the sealing body is normally directed toward the end of the push rod 200. The retrieving assembly 10, transfer assembly 20, and transfer assembly 30 are respectively used to perform the above-mentioned steps S10, S20, and S30.

[0107] Specifically, the retrieving assembly 10 includes an adapter portion 11 for directly capturing the sealing body and forming a circumferential fit therewith. This circumferential fit ensures that the sealing body retains its original shape after being captured by the adapter portion 11. The adapter portion 11 contacts the circumferential sidewalls of the sealing body, preventing the sealing body from becoming elliptical or elongated. The first positioning reference described in the aforementioned assembly method is the geometric center of the adapter portion 11.

[0108] Optionally, see Figure 2 、 Figure 4 、 Figure 5 , the adapter 11 is a pin-shaped element, and its axis is the first positioning reference. After the sealing body is obtained by the adapter 11, the sealing body is arranged around the outer wall of the adapter 11, and the two are coaxially connected as a whole. In order to facilitate the adapter 11 to pass through the hollow sealing body, the outer edge of the end of the adapter 11 is provided with a chamfer or a fillet, and the end of the adapter 11 is conical, table-shaped or hemispherical as a whole, which can reduce the degree of damage to the surface of the sealing body caused by the adapter 11. Of course, in other embodiments, when the sealing body has other structures or shapes, the adapter 11 does not necessarily adopt a pin-shaped structure. For example, when the sealing body is a solid structure and is used to seal the cavity opening of an accessory with a hollow cavity, the adapter 11 can also be a structure with a hollow groove or cavity, which can be sleeved or arranged around the outer wall of the sealing body through the inner wall of its groove or cavity. At this time, the axis of the sealing body is collinear with the axis of the groove / cavity.

[0109] The transfer assembly 20 first drives the retrieving assembly 10, which has already received the sealing body, and the push rod 200 to move relative to each other, while transferring the sealing body and adjusting the position / orientation angle of the sealing body relative to the push rod 200. It should be noted that when the end of the sealing body is pointing normally toward the end of the push rod 200, the sealing body may have either been separated from the adapter 11 of the retrieving assembly 10 or may continue to remain in the adapter 11 of the retrieving assembly 10.

[0110] Furthermore, the transfer assembly mechanism 100 includes a stabilizing assembly 40 for supporting and constraining the push rod 200. Under the constraining action of the stabilizing assembly 40, the push rod 200 is fixed radially relative to the stabilizing assembly 40. The stabilizing assembly 40 has a second positioning reference, which is a virtual straight line. When the push rod 200 is supported by the stabilizing assembly 40, its axis is collinear with the second positioning reference.

[0111] See also Figures 1 to 4, the transfer assembly 20 includes a transfer drive source for driving the material picking assembly 10, and the transfer assembly mechanism also includes a transfer assembly (not numbered in the figure). The transfer assembly includes a first transfer unit and a second transfer unit. The first transfer unit and the material stabilizing assembly 40 are arranged along the driving stroke direction of the transfer drive source. The second transfer unit is also installed on the transfer drive source and can move synchronously with the movement of the material picking assembly 10. The material picking assembly 10 and the second transfer unit are also arranged along the driving stroke direction of the transfer drive source. The driving stroke of the transfer drive source has a first stop point and a second stop point respectively. When the power output end of the transfer drive source is at the first stop point, the material picking assembly 10 and the second transfer unit correspond to the sealing body loading position and the first transfer unit respectively. When the power output end of the transfer drive source is at the second stop point, they correspond to the first transfer unit and the material stabilizing assembly 40 / push rod 200 respectively. The position of the first transfer unit is the transfer position of the sealing body, and the position of the material stabilizing assembly 40 is the assembly position of the sealing body.

[0112] After the material picking component 10 obtains the sealing body at the loading position, it first follows the forward power output of the transfer drive source to move close to the first transfer unit, and then reaches the transfer position. Then, the sealing body is transferred from the adapter 11 of the material picking component 10 to the first transfer unit under the external force of the transfer component 30. Then the transfer drive source outputs reverse power, driving the material picking component 10 to move back to the sealing body loading position. At the same time, the second transfer unit follows the reverse power output of the transfer drive source to reach the transfer position. Afterwards, the sealing body is transferred from the first transfer unit to the second transfer unit. At the same time, the material picking component 10 that has returned to the sealing body loading position obtains a new sealing body. After that, the transfer drive source changes the power output direction again. The second transfer unit drives the sealing body and follows the forward power output of the transfer drive source to reach the assembly position, so that the sealing body is transferred from the second transfer unit to the push rod 200. At the same time, the newly obtained sealing body on the material picking component 10 is also transferred to the first transfer unit.

[0113] Specifically, the first transfer unit includes a first transfer portion 33 in the shape of a pin shaft, the second transfer unit includes a second transfer portion 34 in the shape of a pin shaft, the distance between the first positioning reference and the axis of the second transfer portion 34 is equal to the distance between the axis of the first transfer portion 33 and the second positioning reference. When the sealing body is in the loading position, the distance between its axis and the axis of the first transfer portion 33 is equal, and is also equal to the distance between the first positioning reference and the axis of the second transfer portion 34. The transfer assembly 30 includes: a first pushing portion 31 and a transfer drive portion 32 that drives and connects to the first pushing portion 31. The first pushing portion 31 is sleeved on the outer periphery of the adapter portion 11 of the material picking assembly 10 and can slide relative to the adapter portion 11 along the first positioning reference. It also includes: a second pushing portion 351 and a first transfer drive source 352 that drives and connects to the second pushing portion 351, a third pushing portion 361 and a second transfer drive source 362 that drives and connects to the third pushing portion 361. The first pushing part 31 and the transfer driving part 32 are movably connected to the material picking component 10, and can remain relatively fixed and move synchronously with the material picking component 10; the second pushing part 351 can be movably installed on the first transfer unit, which is sleeved on the first transfer part 33 and has the freedom of axial movement along the first transfer part 33; the third pushing part 361 can be movably installed on the second transfer unit, which is sleeved on the second transfer part 34 and has the freedom of axial movement along the second transfer part 34.

[0114] When the sealing body is transferred from the material taking component 10 to the first transfer unit, the end of the adapter 11 first follows the positive power output of the transfer drive source to the end of the first transfer part 33, so that a transfer trajectory can be formed to guide the sealing body to move toward the first transfer part 33. As the material taking component 10 reaches the transfer position, the transfer drive source pushes the sealing body away from one end of the first transfer unit through the first pushing part 31, so that the sealing body is transferred to the first transfer part 33, and then the second transfer part 34 follows the reverse power output of the transfer drive source to reach The transfer position points to the end of the first transfer part 33, and the first transfer driving source 352 drives the second pushing part 351, and the second pushing part 351 pushes the sealing body to transfer to the second transfer part 34; thereafter, the second transfer part 34 follows the positive power output of the transfer driving source to reach the assembly position and points to the end of the push rod 200, so that a transfer trajectory guiding the sealing body to move toward the push rod 200 can be formed, and the second transfer driving source 362 drives the third pushing part 361, and the third pushing part 361 pushes the sealing body to transfer to the push rod 200.

[0115] For the push rod 200 of the medical syringe, the simplest structure is to provide a necked section for the sealing ring to be mounted, and the outer diameters at both ends of the necked section are larger than the outer diameter of the necked section itself, so that two step surfaces can be formed on the push rod 200. The two step surfaces can respectively stop the axial ends of the sealing ring, thereby limiting the sealing ring to the necked section and preventing the sealing ring from falling off the push rod 200.

[0116] As the adapter 11 is the first structure in the transfer assembly mechanism 100 to be threaded with the sealing ring, the end of the adapter 11 needs to be chamfered or rounded to reduce the difficulty of threading the sealing ring and reduce the degree of damage to the sealing ring caused by the outer edge of the adapter 11. However, if the first and second transfer units are not provided, and the material removal assembly 10 is directly brought to the assembly position and the adapter 11 is directly directed to the end of the push rod 200 to transfer the sealing ring, the following problems will arise:

[0117] 1) The minimum outer diameter of the chamfered or rounded corners of the adapter 11 is smaller than the outer diameter of the end face of the push rod 200. This means that when the sealing ring is transferred from the adapter 11 to the end of the push rod 200, the outer diameter of the portion where the sealing ring is placed will experience a trend of first decreasing and then suddenly increasing. The sudden increase in outer diameter corresponds to the sudden increase in the outer diameter of the end face of the push rod 200 compared to the minimum outer diameter of the chamfered / rounded corners of the adapter 11. This makes it more difficult for the sealing ring to transfer to the necked section.

[0118] 2) The minimum outer diameter of the chamfered or rounded corners of the adapter 11 is greater than or equal to the outer diameter of the end face of the push rod 200. This means that when the sealing ring moves from the cylindrical section of the adapter 11 to the end of the push rod 200, the outer diameter of the portion where the sealing ring is mounted will experience a trend of continuous decrease. In other words, the outer diameter of the portion where the sealing ring is mounted will change from the outer diameter of the cylindrical section of the adapter 11 to the outer diameter of the chamfered / rounded corners of the adapter 11, and then to the outer diameter of the end of the push rod 200. This will cause the sealing ring to slide down too much along the axis of the push rod 200 and miss the necked section where it is mounted.

[0119] It can be seen that the key to ensuring that the sealing ring can be transferred smoothly and evenly to the push rod 200 and then correctly installed on the necking section is to make the outer diameter of the cylindrical section of the adapter 11 equal or basically equal to the outer diameter of the end of the push rod 200, which conflicts with the setting of chamfers / rounded corners on the adapter 11. To overcome this conflict, a first transfer unit and a second transfer unit are added in this embodiment, wherein the end of the adapter 11 is still normally chamfered or rounded, and the outer diameter of the first transfer part 33 is equal to the minimum outer diameter of the chamfer / rounded corner of the adapter 11, so that the first push part 31 can smoothly push the sealing body to the first transfer part 33; the outer diameter of the second transfer part 34 is equal to the outer diameter of the first transfer part 33 and the outer diameter of the end of the push rod 200, and the chamfer / rounded corner is not set at the end of the second transfer part 34, or the length of the chamfer / rounded corner at the end of the second transfer part 34 is much smaller than the length of the chamfer / rounded corner of the adapter 11. In this way, whether the sealing body is transferred from the first transfer part 33 to the second transfer part 34, or from the second transfer part 34 to the end of the push rod 200, the outer diameter of the part where the sealing body is sleeved will basically not change.

[0120] It is worth noting that the above-mentioned first transfer unit and second transfer unit are not components that must be set in the transfer assembly mechanism 100. In other embodiments, the first transfer unit and the second transfer unit may not be set, and the second pushing part 351, the third pushing part 361, the first transfer drive source 352 and the second transfer drive source 362 may be omitted. Accordingly, the transfer position can be cancelled, and the material picking component 10 is driven by the transfer component 20 to directly reach the assembly position from the loading position, and the adapter part 11 is pointed to the end of the push rod 200, and then the first pushing part 31 and the transfer drive source push the sealing body to transfer it to the push rod 200.

[0121] It should also be noted that the provision of the above-mentioned first transfer unit and the second transfer unit is not the only solution for transferring the sealing body from the material-retrieving assembly 10 to the transfer assembly, and then transferring from the transfer assembly to the push rod 200. For example, in another optional embodiment, the transfer assembly may be provided with only one transfer portion, and may also include a position adjustment portion driven by the transfer portion, which drives the transfer portion and changes its position state / orientation angle relative to the material-retrieving assembly 10 and the push rod 200 (referred to as the position of the transfer portion). When the position of the transfer portion is switched to the transfer portion pointing to the adapter portion 11, the transfer assembly 30 transfers the sealing body on the adapter portion 11 to the transfer portion, and then the position adjustment portion drives the transfer portion and the sealing body to move simultaneously close to the push rod 200 until the sealing body and the transfer portion both point to the end of the push rod 200, and finally the transfer assembly 30 transfers the sealing body on the transfer portion to the push rod 200. The position adjustment part can drive the transfer part to rotate, drive the transfer part to move horizontally, and can also drive the transfer part to move in a compound manner along an irregular trajectory, which will not be elaborated here.

[0122] Of course, the position adjustment part can also drive the connected material picking component 10 and / or the push rod 200 to make the material picking component 10 and / or the push rod 200 move relatively close to the transfer part, as long as at least one of the transfer part and the material picking component 10 can move relatively close to the other so that the transfer part can obtain the sealing body, and then the transfer part and the sealing body move relatively close to the push rod 200 together so that the end of the sealing body points to the end of the push rod 200.

[0123] Optionally, when the first transfer unit and the second transfer unit are cancelled in the transfer assembly mechanism 100, the transfer assembly 20 can drive the material picking assembly 10 and the material stabilizing assembly 40 to move relative to each other to adjust the position / orientation angle of the material picking assembly 10 relative to the material stabilizing assembly 40, so that the first positioning reference of the adapter 11 and the second positioning reference of the material stabilizing assembly 40 point to each other. Preferably, the first positioning reference and the second positioning reference can be collinear, thereby obtaining a position adjustment result in which the axis of the sealing body and the axis of the push rod 200 are collinear. In this way, the transfer drive part 32 can output a driving force along the first positioning reference, directly driving the first push part 31 to push the sealing body axially along the sealing body to the push rod 200. A rest plane perpendicular to the first positioning reference can be provided on the first push part 31, thereby forming a surface-fitting contact with the end of the sealing body facing away from the push rod 200.

[0124] In addition, in other embodiments, the first pushing portion 31 can also be connected to the sealing body and apply force to it in other ways, and is not limited to pushing the sealing body away from one end of the push rod 200. For example, the first pushing portion 31 can apply pressure to the circumferential side wall of the sealing body, generating static friction between the two so that they can remain relatively fixed, and can also make the sealing body move synchronously with the first pushing portion 31.

[0125] As a preferred embodiment, the transfer drive source of the transfer assembly 20 drives the material picking assembly 10 and the material stabilizing assembly 40 that have obtained the sealing body to move relative and translationally; of course, in other embodiments, the transfer drive source can also drive the material picking assembly 10 and the material stabilizing assembly 40 that have obtained the sealing body to rotate relative to each other to adjust the position / orientation angle of the material picking assembly 10 relative to the push rod 200. At this time, the transfer assembly 30 can also be connected to the material picking assembly 10 and follow the material picking assembly 10 to perform synchronous flipping movement.

[0126] Optionally, when the first transfer unit and the second transfer unit are eliminated from the transfer assembly mechanism 100, the transfer assembly 20 can also drive the adapter portion 11 of the material removal assembly 10 to be fixedly engaged with the end of the push rod 200. As previously mentioned, the end of the push rod 200 can be configured to have a shape similar to that of the end of the adapter portion 11. This allows a contoured fit between the push rod 200 and the adapter portion 11, thereby improving the tightness and bonding strength of the fixed fit between the two, and making the transfer of the sealed body smoother and more labor-saving.

[0127] Furthermore, the transfer assembly mechanism 100 also includes a positioning component 50 , which can be fixedly fitted with at least one end of the push rod 200 relatively far away from its assembly area, and is used to limit the radial and axial movement freedom of the push rod 200 .

[0128] In an embodiment not shown in the figures, the transfer assembly 30 need not be operably connected to the transfer assembly 20, that is, the transfer assembly 30 need not move synchronously with the transfer assembly 20. Instead, the transfer assembly 30 may be fixed in an assembly position to wait for the retrieving assembly 10 or the transfer assembly to move into position with the sealing body. Once the sealing body is directed toward the end of the push rod 200, the transfer assembly 30 may be activated to transfer the sealing body from the retrieving assembly 10 or the transfer assembly to the push rod 200.

[0129] The various technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0130] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. Any appropriate changes and modifications to the above embodiments fall within the scope of the present invention as long as they are within the spirit of the present invention.

Claims

1. A method for assembling a sealing body and an accessory, wherein the sealing body and the accessory are applied to medical consumables, characterized in that: The assembly method comprises the following steps: S10, using the adapter of the material taking assembly to obtain the sealing body, and connecting the adapter and the sealing body into one body; S20, adjusting the position of the material taking component to control the transfer component and the material taking component to move closer to each other; S30, the transfer assembly transfers the sealing body from the adapter portion to the transfer portion of the transfer assembly; S40, the transfer assembly and the sealing body are brought together close to the accessory so that the end of the sealing body points toward the end of the accessory; S50, the transfer assembly transfers the sealing body from the transfer portion to the accessory, so that the sealing body and the accessory form a circumferential fit; The assembly method further comprises: The transfer assembly repeatedly switches the material taking assembly so that the material taking assembly is in the loading position or the transfer position, and the transfer assembly repeatedly switches the second transfer unit of the transfer assembly so that the second transfer unit is in the transfer position or the assembly position; The material taking component obtains the sealing body at the loading position and guides the sealing body to be transferred to the first transfer unit of the transfer component at the transfer position; the second transfer unit obtains the sealing body at the transfer position and guides the sealing body to be transferred to the accessory at the assembly position; Among them, the structures of the adapter and the transfer component for obtaining the sealing body are differentiated, and the structures of the adapter and the transfer component for transferring the sealing body to the accessory are differentiated, The structure for obtaining the sealing body in the transfer component is adapted to the size of the accessory, and the structure for transferring the sealing body to the accessory in the transfer component is adapted to the size of the accessory.

2. The assembly method according to claim 1, wherein: Step S10, i.e., using the adapter of the material taking component to obtain the sealing body, and connecting the adapter and the sealing body into one body, includes: The material taking assembly has a first positioning reference, which is used to define the position of the sealing body relative to the material taking assembly in the radial direction.

3. The assembly method according to claim 2, characterized in that: The assembly method further comprises the following steps: S15. Using a material stabilizing assembly to support accessories; wherein: The material stabilizing assembly has a second positioning reference, and the second positioning reference is used to define the position of the accessory relative to the material stabilizing assembly in the radial direction.

4. The assembly method according to claim 2, characterized in that: Step S10, i.e., using the adapter of the material taking component to obtain the sealing body and connecting the adapter and the sealing body into one body, includes the following steps: S11. The material taking assembly moves relatively close to the sealing body along the first positioning reference.

5. The assembly method according to claim 4, characterized in that: The sealing body is a hollow structure; step S11, that is, the material taking component moves relatively close to the sealing body along the first positioning reference, includes the following steps: S111. The material taking component passes through the sealing body, and the axis of the sealing body is aligned with the first positioning reference.

6. The assembly method according to claim 1, characterized in that: Step S50, that is, the transfer assembly transfers the sealing body from the transfer portion to the accessory so that the sealing body and the accessory form a circumferential fit, includes the following steps: S31, placing the transfer assembly against the end of the sealing body facing away from the accessory, and using the transfer assembly to push the sealing body to slide relative to the material taking assembly.

7. A transfer and assembly mechanism for transferring a sealing body and assembling the sealing body to an accessory, characterized in that: The transfer assembly mechanism includes: A material taking assembly, comprising an adapter portion for taking the sealing body and capable of being connected to the sealing body as a whole, wherein the end of the adapter portion is provided with a chamfer or a rounded corner; A transfer assembly capable of transferring the sealing body by driving the material taking assembly and the accessory to move relative to each other, and making the end of the sealing body face the end of the accessory; A transfer assembly, comprising a first transfer unit and a second transfer unit, wherein the transfer assembly and the material taking assembly can move relatively close to each other so that the transfer assembly can obtain the sealing body, and the transfer assembly and the sealing body can move relatively close to the accessory together so that the end of the sealing body faces the end of the accessory; a transfer assembly for transferring the sealing body from the adapter portion to the transfer portion of the transfer assembly, and capable of driving the sealing body to transfer from the transfer portion to the accessory when the end portion of the sealing body faces the end portion of the accessory; the outer diameter of the transfer portion is equal to the outer diameter of the end portion of the accessory; The transfer assembly can repeatedly switch the material taking assembly so that the material taking assembly is in the loading position or the transfer position, and can repeatedly switch the second transfer unit so that the second transfer unit is in the transfer position or the assembly position; The picking assembly obtains the sealing body when in the loading position and guides the sealing body to be transferred to the first transfer unit when in the transfer position; the second transfer unit obtains the sealing body when in the transfer position and guides the sealing body to be transferred to the accessory when in the assembly position; The adapter and the transfer component have different structures for obtaining the seal, and the adapter and the transfer component have different structures for transferring the seal to the accessory. The structure for obtaining the sealing body in the transfer component is adapted to the size of the accessory, and the structure for transferring the sealing body to the accessory in the transfer component is adapted to the size of the accessory to avoid the chamfer or the rounded corner interfering with the transfer of the sealing body to the accessory.

8. The transfer assembly mechanism according to claim 7, characterized in that: The material taking assembly has a first positioning reference for defining the position of the sealing body relative to the material taking assembly in its radial direction; The transfer assembly mechanism further includes a material stabilizing component for carrying an accessory, wherein the material stabilizing component has a second positioning reference for defining the position of the accessory relative to the material stabilizing component in its radial direction; The transfer assembly is driven to connect to the material picking assembly or the material stabilizing assembly, and the first positioning reference and the second positioning reference are made to point to each other by adjusting the position and / or angle of the material picking assembly relative to the material stabilizing assembly.

9. The transfer assembly mechanism according to claim 8, characterized in that: The transfer assembly is driven and connected to the material taking assembly, and the first positioning reference and the second positioning reference are made collinear by adjusting the material taking assembly.

10. The transfer assembly mechanism according to claim 7, 8 or 9, characterized in that: The transfer assembly includes a first pushing portion for connecting to the sealing body and a transfer driving portion, wherein the transfer driving portion is capable of driving the first pushing portion to move relatively close to the accessory.

11. The transfer assembly mechanism according to claim 10, characterized in that: The material taking assembly has a first positioning reference for defining the position of the sealing body relative to the material taking assembly in its radial direction, the adapter is used to form a circumferential fit with the sealing body, and the first positioning reference is the axis of the adapter; The first pushing portion is movably arranged in the axial direction of the adapting portion.

12. The transfer assembly mechanism according to claim 11, characterized in that: The adapting portion is used to penetrate the sealing body and cooperate with the inner wall of the through hole of the sealing body, and the first pushing portion is sleeved on the outer periphery of the adapting portion.

13. The transfer assembly mechanism according to claim 7, characterized in that: The transfer assembly drives the material taking assembly and the accessory to perform relative translational movement so that the sealing body faces the end of the accessory, and the transfer assembly is movably connected to the material taking assembly.

14. The transfer assembly mechanism according to claim 7, characterized in that: The transfer assembly drives the picking assembly to flip over a preset angle so that the sealing body faces the end of the accessory. The transfer assembly is operatively connected to the picking assembly and can follow the transfer power output of the transfer assembly and flip over the preset angle synchronously with the picking assembly.

15. The transfer assembly mechanism according to claim 7, characterized in that: The transfer assembly can drive the material taking assembly to conform to the end of the accessory and to fix them relatively.

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