A serum filling and capping machine

Abstract

This invention relates to the field of serum filling technology and discloses a serum filling and capping machine, including a frame, a pushing mechanism mounted on the frame, a turntable mechanism mounted on one side of the pushing mechanism, a filling mechanism mounted on top of the turntable mechanism, and a capping mechanism mounted on one side of the turntable mechanism. The turntable mechanism includes a turntable mounted on top of the frame, several containers mounted on the turntable, bottle caps mounted on the containers, and a capping mechanism mounted on one side of the capping mechanism. It adaptively adapts to different bottle caps, improving operational convenience and production efficiency. Through linkage with an automatic locking force release unit, it can automatically identify the bottle cap locking status and release the clamping force without preset parameters, solving the problem of frequent manual parameter adjustment, reducing operational intensity, and improving production line changeover efficiency and equipment versatility.

Description

Technical Field

[0001] This invention relates to the field of serum filling technology, and more particularly to a serum filling and capping machine. Background Technology

[0002] In the production of biological products such as serum, filling and capping machines are key equipment to ensure product sealing and sterility. Their core function is to automate the process of container transport, serum filling, cap assembly, and tightening. Existing capping machines typically consist of a frame, a pushing mechanism, a turntable mechanism, a filling mechanism, a capping mechanism, and a capping mechanism, which work together to meet basic production needs. However, existing capping machines still face several technical challenges in meeting the specific requirements of serum filling and adapting to different cap sizes.

[0003] In the capping process, due to differences in the number of turns and size of different caps, existing equipment requires manual pre-setting and adjustment of the clamping force and number of rotations before capping to avoid problems such as cap deformation, cracking, and thread stripping caused by continuous pressure from the grippers after the cap is tightened. However, frequent parameter adjustments are cumbersome, increasing the workload of operators and reducing production line changeover efficiency; moreover, manual adjustments are prone to errors and cannot accurately match the locking requirements of various caps. Furthermore, the gripper structures of existing capping machines are mostly rigid designs or conventional rubber grips, lacking wear-resistant and anti-slip surface treatments adapted to extrusion deformation. This can easily lead to cap slippage, clamping misalignment, or continuous friction between the grippers and caps causing component wear and debris shedding, thus posing a risk of serum contamination and failing to meet the high sterility and low-damage requirements of biopharmaceutical production. In addition, the locking and releasing mechanisms of some equipment have simple trigger logic, which can easily lead to mis-locking during the initial clamping stage or incomplete unlocking, resulting in insufficient cap locking accuracy and further affecting product yield. All of these problems limit the reliability and adaptability of existing capping machines in the serum filling field. Summary of the Invention

[0004] In view of the problems of existing technology, such as the need for frequent manual parameter adjustment to adapt to different bottle caps, easy slippage and wear of the grippers with the risk of contamination, and easy accidental triggering or incomplete unlocking of the locking and releasing mechanism, a serum filling and capping machine is proposed.

[0005] Its purpose is to: eliminate the need for frequent manual parameter adjustments and adapt to different cap sizes in serum filling and capping machines; improve the gripping stability and wear resistance of the grippers; optimize the triggering accuracy of the locking and releasing mechanism; eliminate the problems of accidental triggering and incomplete unlocking; reduce the risk of cap damage and serum contamination; and improve production efficiency and product qualification rate.

[0006] The technical solution of the present invention is a serum filling and capping machine, including a frame, a pushing mechanism disposed on the frame, a turntable mechanism disposed on one side of the pushing mechanism, a filling mechanism disposed on the top of the turntable mechanism, and a capping mechanism disposed on one side of the turntable mechanism. The turntable mechanism includes a turntable disposed on the top of the frame, a plurality of containers disposed on the turntable, bottle caps disposed on the containers, and a capping mechanism disposed on one side of the capping mechanism.

[0007] The capping mechanism includes a drive mechanism, several grippers disposed at the bottom of the drive mechanism, and an automatic locking force release unit disposed inside the grippers;

[0008] The automatic release unit for locking force includes a rubber clamping block disposed in the clamping jaws, two concave arcs symmetrically opened on the side of the rubber clamping block, a compression spring disposed in the clamping jaws and fixedly connected to the rubber clamping block, locking components disposed on both sides of the rubber clamping block for locking the rubber clamping block, a trigger component disposed in the middle of the two locking components, and a reset component disposed on one side of the trigger component for pushing the trigger component to reset.

[0009] The triggering assembly includes a shrinkage groove in the middle of the rubber clamping block, a circular triggering block in the shrinkage groove, rotating shafts symmetrically arranged on both sides of the triggering block, several extrusion plates arranged in a circular array on the rotating shafts, two push plates arranged on both sides of the triggering block, a connecting plate on one side of the push plate, a push rod on one side of the connecting plate, and a push column on one side of the push rod.

[0010] Furthermore, the ends of the push plates are arc-shaped, and the two push plates and the connecting plate are centrally symmetrical about the trigger block.

[0011] Furthermore, several of the extrusion plates are arranged in an odd-numbered ring array at the end of the rotating shaft, and several extrusion plates on both sides of the rotating shaft are arranged symmetrically.

[0012] Furthermore, the locking assembly includes a locking groove communicating with the gripper and the rubber clamping block, a locking spring disposed in the locking groove, a locking post disposed on one side of the locking spring, and one end of the locking post extending into the locking groove located in the rubber clamping block.

[0013] Furthermore, in the initial state, the locking pin will push the pin against the locking groove.

[0014] Furthermore, the reset assembly includes symmetrically rotatably oriented limiting rings on both sides of the rotating shaft, limiting strips on one side of the limiting rings, a reset plate on one side of the two limiting strips, a reset spring on one side of the reset plate, and a cylindrical groove formed inside the rubber clamp to provide space for the reset spring to move.

[0015] Furthermore, symmetrical limiting grooves are provided on both sides of the shrinkage groove to limit the linear movement of the rotating shaft, and the rotating shaft is slidably connected to the limiting grooves.

[0016] Furthermore, the rubber clamp is also provided with a movable cavity for providing horizontal movement of the push plate, connecting plate and push rod.

[0017] Furthermore, one end of the rubber clamp is convex and arc-shaped, and its surface is coated with a flexible nanodiamond composite coating. The surface of the flexible nanodiamond composite coating is also provided with micron-sized arc-shaped anti-slip textures that can deform synchronously with the rubber clamp.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. Achieving adaptive compatibility with different bottle caps, significantly improving operational convenience and production efficiency. This invention, through the linkage design of the automatic locking force release unit, eliminates the need to preset the number of cap turns or clamping force. It automatically identifies the locking state of bottle caps with different tightening degrees and sizes and releases the clamping force accordingly, completely solving the problem of frequent manual parameter adjustments required for adapting to different bottle caps in existing technologies. This not only reduces the workload of operators but also improves the switching efficiency of the production line between different product specifications, significantly enhancing the equipment's versatility and automation level.

[0020] 2. Optimize clamping and protective performance to reduce product damage and contamination risks. On the one hand, the arc-shaped structure of the rubber clamping end, the flexible nano-diamond composite coating, and the synchronously deformable micron-level arc-shaped anti-slip texture work together to improve the fit and clamping with the bottle cap, preventing slippage during capping, while also taking into account flexible deformation and high wear resistance, avoiding wear and debris shedding caused by excessive friction between the clamping claws and the bottle cap; on the other hand, the surface treatment solution has stable materials that meet the aseptic requirements of biopharmaceutical production, effectively eliminating the risk of serum contamination, while reducing damage problems such as bottle cap deformation, cracking, and thread stripping, and improving the filling and capping qualification rate of serum containers.

[0021] 3. Improve the reliability and accuracy of the locking and releasing mechanism to ensure stable equipment operation. The odd-numbered ring array design of the extrusion plate avoids initial mis-locking at the source; the symmetrical layout enables synchronous and smooth unlocking of the locking components, avoiding problems such as incomplete unlocking and jamming; the reset and limit structure ensures stable movement, extends component life, and reduces maintenance costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the body frame structure after the present invention has been removed;

[0024] Figure 3 This is a schematic diagram of the drive mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of the overall structure of the gripper holding the bottle cap according to the present invention;

[0026] Figure 5 This is a three-dimensional structural diagram of the gripper, rubber clamping block, and trigger block of the present invention.

[0027] Figure 6 This is an exploded view of the overall structure of the automatic locking force release unit of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram showing the exploded internal structure of the rubber clamping block of the present invention.

[0029] Figure 8 This is a schematic diagram of the overall cooperative structure of the locking component, reset component, and trigger component of the present invention;

[0030] Figure 9 This is an exploded structural diagram of the locking component, reset component, and triggering component of the present invention;

[0031] Figure 10 This is a three-dimensional structural diagram of the two push plates of the present invention;

[0032] Figure 11 This is a schematic diagram showing the positional structure of the two push plates and several extrusion plates of the present invention.

[0033] In the picture:

[0034] 1. Frame; 11. Pushing mechanism; 12. Turntable mechanism; 121. Container; 122. Bottle cap; 13. Filling mechanism; 14. Top cover mechanism; 2. Drive mechanism; 3. Gripper; 4. Rubber clamp; 5. Compression spring; 6. Trigger assembly; 61. Shrink groove; 62. Trigger block; 63. Rotating shaft; 64. Extrusion plate; 65. Push plate; 66. Connecting plate; 67. Push rod; 68. Push column; 7. Locking assembly; 71. Locking groove; 72. Locking spring; 73. Locking column; 8. Reset assembly; 81. Limit ring; 82. Limit strip; 83. Reset plate; 84. Reset spring; 9. Limit groove. Detailed Implementation

[0035] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] Example 1, referring to Figures 1-11This invention provides a serum filling and capping machine, comprising a frame 1, a pushing mechanism 11 mounted on the frame 1, a turntable mechanism 12 mounted on one side of the pushing mechanism 11, a filling mechanism 13 mounted on the top of the turntable mechanism 12, and a capping mechanism 14 mounted on one side of the turntable mechanism 12. The turntable mechanism 12 includes a turntable rotatably mounted on the top of the frame 1, several containers 121 placed on the turntable, and bottle caps 122 mounted on the containers 121. It also includes a capping mechanism mounted on one side of the capping mechanism 14. The pushing mechanism 11 pushes the containers 121 into the turntable mechanism 12. The turntable mechanism 12 rotates and cooperates with the filling mechanism 13 to fill the containers 121 with serum. After filling, the containers 121 rotate to the bottom of the capping mechanism 14 for capping, and then continue to rotate. Tighten the cap at the bottom of the screw cap mechanism, and finally rotate it out from the other side of the turntable mechanism 12; the screw cap mechanism includes a drive mechanism 2, several grippers 3 set at the bottom of the drive mechanism 2, the drive mechanism 2 controls the grippers 3 to clamp the bottle cap 122, the grippers 3 rotate to tighten the bottle cap 122, and an automatic locking force release unit set inside the grippers 3; the automatic locking force release unit includes a rubber clamp 4 slidably connected in the grippers 3, two concave arcs symmetrically opened on the side of the rubber clamp 4, a compression spring 5 fixedly connected in the grippers 3, the compression spring 5 fixedly connected to the rubber clamp 4, locking components 7 set on both sides of the rubber clamp 4 for locking the rubber clamp, a trigger component 6 set in the middle of the two locking components 7, and a reset component 8 set on one side of the trigger component 6 for pushing the trigger component 6 to reset. The trigger assembly 6 includes a shrinkage groove 61 formed in the middle of the rubber clamping block 4, a circular trigger block 62 slidably connected in the shrinkage groove 61, a rotating shaft 63 symmetrically fixedly connected to both sides of the trigger block 62, a plurality of extrusion plates 64 fixedly connected to the rotating shaft 63 in a circular array, two push plates 65 respectively set on both sides of the trigger block 62, a connecting plate 66 fixedly connected to one side of the push plate 65, a push rod 67 fixedly connected to one side of the connecting plate 66, and a push column 68 fixedly connected to one side of the push rod 67.

[0037] Specifically, existing capping machines typically require different tightening turns for different bottle caps 122. Therefore, before capping, it's often necessary to pre-adjust the clamping force and number of rotations. For example, for a bottle cap 122 that tightens with two or three rotations, the machine needs to automatically open the gripper 3 after two or three rotations to prevent continuous pressure on the cap 122, which could cause deformation or damage due to excessive pressure or wear from friction between the gripper 3 and the cap 122's side, affecting subsequent clamping force and tightening degree. Furthermore, readjustment is required before capping for bottle caps 122 and containers 121 with different tightening turns, making the operation cumbersome. The purpose of this invention is to solve the adaptability problem of capping clamping for different tightening degrees of bottle caps 122, avoiding the aforementioned problems.

[0038] To address the aforementioned issues, an automatic locking force release unit is designed to automatically release the continuous, rigid clamping force of the rubber clamp 4 on the bottle cap 122 when it is tightened. Initially, the rubber clamp 4 is locked by the locking component 7, allowing it to clamp the bottle cap 122. The trigger block 62 is compressed and retracted within the shrinkage groove 61, and under the action of the reset component 8, it continuously presses against the side of the bottle cap 122. When the bottle cap 122 is tightened, as the gripper 3 continues to rotate, the side of the bottle cap 122 slides out from the compression point of the rubber clamp 4 and rotates to the next gripper 3. At this point, the bottle cap 122, under the action of two concave arcs, first presses against the trigger block 62. While pressing against the trigger block 62, the bottle cap 122 also rotates, causing the trigger block 62 to move and rotate simultaneously with the rotating shaft 63. Several compression plates 64 move and rotate, pressing against the push plates 65 on both sides, causing the push rod 67 to move synchronously with the push column 68, thereby squeezing... When the trigger block 62 rotates continuously (in the initial clamping state, the trigger block 62 is only squeezed and contracted without rotation), the several extrusion plates 64 arranged in a ring array continuously squeeze and push the push plate 65. At this time, the distance that the push plate 65 is pushed to move is fixed, and the push column 68 pushes the locking component 7 to just disengage from the rubber clamp 4, so that the locking component 7 contacts and locks against it. The rubber clamp 4 can then be pushed and contracted to avoid continuous hard friction and squeezing between it and the side of the bottle cap 122.

[0039] This invention utilizes the linkage design of the trigger component 6 and locking component 7 in the automatic release unit for locking force. After the bottle cap 122 is fully tightened, without the need for preset rotation counts or clamping force, rotation of the side of the bottle cap 122 automatically triggers the movement and rotation of the trigger block 62, thereby pushing the locking component 7 to release the lock on the rubber clamp 4. When the lock is released, the rubber clamp 4 can automatically retract under the action of the compression spring 5, avoiding the continuous hard compression and torsional friction of the clamp 3 on the tightened bottle cap 122 in the prior art. This fundamentally eliminates the problems of deformation, cracking, and thread stripping of the bottle cap 122 caused by excessive torque, as well as excessive wear between the clamp 3 and the side wall of the bottle cap 122, significantly improving the filling and capping qualification rate of the serum container 121. Furthermore, it is compatible with bottle caps 122 and containers 121 of different tightening degrees and sizes, without the need for preset adjustments. Whether it's a small bottle cap that can be tightened by turning it twice or a large bottle cap that requires five turns to tighten, the equipment can automatically identify its tightening status and release the clamping force, significantly reducing the workload of operators and improving the switching efficiency and automation level of the production line.

[0040] Reference Figures 8-10 The ends of the push plate 65 are arc-shaped, and the two push plates 65 and the connecting plate 66 are centrally symmetrical about the trigger block 62.

[0041] Specifically, the arc-shaped design facilitates the smooth entry of the extrusion plate 64. The two push plates 65 and the connecting plate 66 are symmetrical about the trigger block 62. When the trigger block 62 rotates, the extrusion plates 64 on both sides will simultaneously and equally extrude the corresponding push plates 65, thereby driving the connecting plates 66, push rods 67, and push columns 68 on both sides to move synchronously. This symmetrical design ensures that the extrusion force of the push columns 68 on both sides on the locking component 7 is consistent in magnitude and synchronous in direction, so that the locking component 7 (such as the locking column 73) can smoothly and uniformly disengage from the locking groove 71 of the rubber clamp 4. This avoids problems such as incomplete locking release due to uneven force on one side (e.g., one side not disengaged, one side disengaged), jamming caused by force offset of the rubber clamp 4, and offset of the bottle cap 122 clamping, thus ensuring the accuracy of the locking force release action.

[0042] Reference Figures 8-10 Several extrusion plates 64 are fixedly connected to the end of the rotating shaft 63 in an odd-numbered ring array, and the extrusion plates 64 on both sides of the rotating shaft 63 are symmetrically arranged.

[0043] Specifically, if an even-numbered ring array is used, the squeezing plates 64 will be distributed in pairs facing each other. When the rotating shaft 63 drives the squeezing plates 64 to rotate, there may be situations where the squeezing plates 64 on both sides simultaneously contact or disengage from the push plate 65, resulting in a discontinuity of force (i.e., a trigger blind zone) during the triggering process. However, if an odd-numbered ring array is used, the distribution of the squeezing plates 64 has no symmetrical "opposing plates". For every small angle that the rotating shaft 63 rotates, there is always one and only one squeezing plate 64 in effective contact with the push plate 65, and the contact position continuously changes with the rotation. In the initial clamping state where the squeezing plates 64 of the odd-numbered array only contract and do not rotate, they cannot form a continuous squeezing force, further strengthening the logic of "non-continuous rotation does not trigger unlocking" and completely avoiding false triggering. One crucial aspect is that the odd-number asymmetric design prevents the locking component 7 from unlocking when one of the compression plates 64 is at its maximum pushing distance in the initial state during the initial compression and contraction of the trigger block 62. The odd-number design ensures that the upper and lower compression plates 64 are asymmetrical, with different pushing distances on each side. Even if one compression plate 64 pushes the locking component 7 to unlock, the other side will not be able to unlock it. This asymmetric distribution of the odd-number array fundamentally avoids the risk of mis-locking when the trigger block 62 is only compressed and contracted during the initial clamping stage. Because the contact position and stroke of the compression plates 64 on both sides are mismatched, a synchronous unlocking driving force cannot be formed, strictly ensuring the judgment logic of "no unlocking during contraction, unlocking only during continuous rotation," thus enhancing locking reliability.

[0044] Example 2, refer to Figures 6-7 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the locking component 7 includes a locking groove 71 that connects the gripper 3 and the rubber clamping block 4, a locking spring 72 that is fixedly connected in the locking groove 71, and a locking post 73 that is fixedly connected to one side of the locking spring 72, with one end of the locking post 73 extending into the locking groove 71 located in the rubber clamping block 4.

[0045] Specifically, when the push post 68 pushes the locking post 73, the locking post 73 is pushed to compress the locking spring 72 and move into the locking groove 71. When the trigger block 62 rotates continuously to squeeze the side of the push plate 65, the push plate 65 drives the push post 68 to move to the maximum distance, which just makes the locking post 73 disengage from the rubber clamp 4, thereby unlocking the rubber clamp 4 and allowing it to be squeezed and contracted, thus avoiding wear on the bottle cap 122 and the rubber clamp 4.

[0046] Reference Figures 6-7 In the initial state, the locking pin 73 will push the pin 68 to abut against the locking groove 71.

[0047] Specifically, this design facilitates the return of the push post 68 to its initial position and also allows it to precisely push the locking post 73 to release the contact lock on the rubber clamp 4. The remaining structure is the same as that in Embodiment 1.

[0048] Example 3, referring to Figures 7-9 This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the reset assembly 8 includes a limiting ring 81 symmetrically and rotatably disposed on both sides of the rotating shaft 63, a limiting strip 82 fixedly connected to one side of the limiting ring 81, a reset plate 83 fixedly connected to one side of the two limiting strips 82, a reset spring 84 fixedly connected to one side of the reset plate 83, and a cylindrical groove (not shown, only used to provide space for movement) opened inside the rubber clamp 4 for providing space for movement of the reset spring 84.

[0049] Specifically, the reset component 8 is used to drive the trigger component 6 to reset. When the trigger block 62 is pushed, the limit ring 81 pushes the limit bar 82 and the reset plate 83 to move. The reset plate 83 compresses the reset spring 84 in the cylindrical groove.

[0050] Reference Figure 7 The shrinkage groove 61 is also symmetrically provided with limiting grooves 9 on both sides for limiting the linear movement of the rotating shaft 63, and the rotating shaft 63 is slidably connected to the limiting grooves 9.

[0051] Specifically, the limiting groove 9 is used to restrict the movement path of the rotating shaft 63, so that the trigger block 62 is pushed to move in a straight line, thereby improving its stability during rotation and translation.

[0052] Reference Figure 7 The rubber clamp 4 also has a movable cavity (not shown, only used to provide space for movement) for providing horizontal movement of the push plate 65, the connecting plate 66 and the push rod 67.

[0053] Specifically, the movable cavity is used to provide movement space and limit the movement of the push plate 65, the connecting plate 66 and the push rod 67, thereby improving their stability and accuracy in the unlocking process.

[0054] Reference Figures 5-7 The rubber clamp 4 has a convex arc shape at one end, and its surface is coated with a flexible nano-diamond composite coating. The surface of the flexible nano-diamond composite coating is also provided with micron-level arc-shaped anti-slip textures (not shown) that can deform synchronously with the rubber clamp 4.

[0055] Specifically, the rubber clamp 4 is adapted to the extrusion deformation characteristics, improving the fit and clamping degree with the bottle cap 122 and the balance of force; it combines high wear resistance and flexibility, preventing coating cracking and peeling, reducing wear between the clamp and the bottle cap 122, and extending service life; it enhances anti-slip performance to prevent the bottle cap 122 from slipping, and the arc-shaped design avoids scratches on the bottle cap 122; it ensures material stability and sterility, preventing debris from contaminating the serum; ultimately achieving a comprehensive effect of stable clamping, low-damage protection, and sterile adaptation, improving the capping qualification rate and reducing equipment maintenance costs. The remaining structure is the same as that in Example 2.

[0056] Based on embodiments 1-3, the working principle of this invention is as follows: During initial clamping, the drive mechanism 2 drives the gripper 3 to clamp the bottle cap 122. The rubber clamping block 4 is locked by the locking component 7 to ensure stable clamping. The trigger block 62 retracts into the shrinkage groove 61 and presses against the bottle cap 122. The arc-shaped structure and special anti-slip texture of the extrusion end of the rubber clamping block 4 take into account the requirements of fit and anti-slip, flexible deformation, and wear resistance and sterility. After the bottle cap 122 is tightened, the gripper 3 continues to rotate, causing the bottle cap 122 to drive the trigger block 62 to rotate. The trigger block 62 drives the two rotating shafts 63 and the odd-numbered annular array extrusion plates 64 to rotate. The characteristic of the odd-numbered array without contact blind spots is used to form continuous extrusion force. With the symmetrical layout on both sides and the centrally symmetrical pushing component, the two pushing columns 68 simultaneously extrude the locking column 73. When the pushing column 68 moves to the maximum distance, the locking column 73 is unlocked, and the rubber clamping block 4 retracts under the action of the compression spring 5 to avoid continuous friction damage. After unlocking, the reset component 8 drives the trigger component 6 to reset, and the limiting structure ensures stable movement. This mechanism requires no preset parameters, can adapt to different bottle caps 122, avoids accidental locking, achieves stable clamping, low damage and sterility, improves the pass rate and reduces maintenance costs.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A serum filling and capping machine, comprising a frame, a pushing mechanism mounted on the frame, a turntable mechanism mounted on one side of the pushing mechanism, a filling mechanism mounted on top of the turntable mechanism, and a capping mechanism mounted on one side of the turntable mechanism, wherein the turntable mechanism includes a turntable mounted on top of the frame, a plurality of containers mounted on the turntable, and bottle caps mounted on the containers, characterized in that, It also includes a capping mechanism located on one side of the top cover mechanism; The capping mechanism includes a drive mechanism, several grippers located at the bottom of the drive mechanism, and an automatic locking force release unit located inside the grippers. The automatic locking force release unit includes a rubber clamping block located inside the grippers, two concave arcs symmetrically formed on the sides of the rubber clamping block, a compression spring located inside the grippers and fixedly connected to the rubber clamping block, locking components located on both sides of the rubber clamping block for locking the rubber clamping block, a triggering component located in the middle of the two locking components, and a reset component located on one side of the triggering component for pushing the triggering component to reset. The triggering component includes a shrinkage groove in the middle of the rubber clamping block, a circular triggering block in the shrinkage groove, a rotating shaft symmetrically arranged on both sides of the triggering block, a plurality of extrusion plates arranged in a circular array on the rotating shaft, two push plates arranged on both sides of the triggering block, a connecting plate arranged on one side of the push plate, a push rod arranged on one side of the connecting plate, and a push column arranged on one side of the push rod. The locking assembly includes a locking groove that connects the gripper and the rubber clamping block, a locking spring disposed in the locking groove, and a locking post disposed on one side of the locking spring, with one end of the locking post extending into the locking groove located in the rubber clamping block. In the initial state, the locking pin will push the pin against the locking groove; The reset assembly includes symmetrically rotatably oriented limiting rings on both sides of the rotating shaft, limiting strips on one side of the limiting rings, a reset plate on one side of the two limiting strips, a reset spring on one side of the reset plate, and a cylindrical groove formed inside the rubber clamp to provide space for the reset spring to move. The shrinkage groove is also symmetrically provided on both sides for limiting the linear movement of the rotating shaft, and the rotating shaft is slidably connected to the limiting groove.

2. The serum filling and capping machine according to claim 1, characterized in that, The ends of the push plates are arc-shaped, and the two push plates and the connecting plate are centrally symmetrical about the trigger block.

3. The serum filling and capping machine according to claim 1, characterized in that, Several extrusion plates are arranged in an odd-numbered ring array at the end of the rotating shaft, and several extrusion plates on both sides of the rotating shaft are arranged symmetrically.

4. The serum filling and capping machine according to claim 1, characterized in that, The rubber clamp also has a movable cavity for providing horizontal movement of the push plate, connecting plate and push rod.

5. The serum filling and capping machine according to claim 1, characterized in that, One end of the rubber clamp is convex and arc-shaped, and its surface is coated with a flexible nanodiamond composite coating. The surface of the flexible nanodiamond composite coating is also provided with micron-level arc-shaped anti-slip textures that can deform synchronously with the rubber clamp.

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