CN219215659U - Cover sterilization system - Google Patents

Abstract

The utility model provides a cover sterilization system, which comprises a chain type circulating conveying mechanism for conveying covers, a sterilization cabin, a cleaning cabin and a drying cabin; the lower part of a circulation loop of the chain type circulation conveying mechanism is provided with a plurality of downward protruding conveying lines, and the sterilization cabin and the cleaning cabin are positioned at the lower part of the circulation loop corresponding to the downward protruding conveying lines, so that the downward protruding conveying lines can pass through and dip into the sterilization cabin and the spraying position passing through the cleaning cabin; the chain type circulating conveying mechanism is provided with a plurality of rows and a plurality of columns of clamping mechanisms, and can clamp the covers in the side lying state. The utility model can ensure that the covers are conveyed into and out of the sterilizing liquid container, sterilization is carried out in a soaking way, the sterilization time of each cover is related to the running speed of the conveying mechanism, the sterilization time is consistent, the covers are in a clamped state in the whole sterilization process, the cover clamps can well keep the covers, various actions can be carried out, the positioning of the covers is not influenced, the conveying is ordered, and the covers can be in consistent state through the sterilization process, so that the stable and consistent sterile effect is achieved.

Description

Cover sterilization system

Technical Field

The present utility model relates to a method and system for sterilizing caps in the field of filling machines, and more particularly to a method and system for sterilizing caps in an aseptic filling system.

Background

In the filling system, a method of spraying sterilizing liquid is mostly adopted for sterilizing the cover, but the cover with a complex structure inevitably has a part where the sterilizing liquid is difficult to spray, and cannot reach the high grade of aseptic package, thereby increasing the refrigerating requirement. For the sterilization process, the conventional cap conveying mechanism is that caps move directly in the cap lane based on gravity, but the caps can generate irregular movements in the cap lane, and even for caps with relatively simple structures, the reliability of the sterilization effect of spraying is also affected.

Disclosure of Invention

The utility model aims to provide a cap sterilization system which can be applied to a sterile filling system and can improve the sterilization effect of caps. The utility model adopts the following technical scheme:

the cap sterilization system for realizing the cap sterilization method is characterized by comprising a chain type circulating conveying mechanism for conveying caps, a sterilization cabin, a cleaning cabin and a drying cabin;

the chain wheel axis of the chain type circulating conveying mechanism is a horizontal axis, a plurality of downward protruding conveying lines are arranged at the lower part of a circulating loop of the chain type circulating conveying mechanism, and the sterilizing cabin and the cleaning cabin are correspondingly positioned at the lower part of the circulating loop and enable the downward protruding conveying line to pass through and be immersed into the sterilizing cabin and the spraying position passing through the cleaning cabin; the chained circulating conveying mechanism is provided with a plurality of rows and a plurality of columns of clamping mechanisms, and can clamp the covers in the side lying state.

On the basis of adopting the technical scheme, the utility model can also adopt the following further technical schemes or use the further technical schemes in combination:

the sterilization cabin is provided with a liquid level control mechanism.

The downward protruding conveying line is a U-shaped line, and in the sterilization cabin, the lower part of the U-shaped line is immersed in the sterilization liquid with the liquid level controlled by the liquid level control mechanism.

The downward protruding conveying line is a U-shaped line, the cleaning cabin is provided with a water spraying mechanism and an air spraying mechanism, the nozzle of the water spraying mechanism is arranged corresponding to the downward conveying path of the cover, the nozzle of the air spraying mechanism is arranged corresponding to the upward conveying path of the cover, and the downward conveying path and the upward conveying path of the cover are separated.

The drying cabin comprises a plurality of rows of cover falling channels corresponding to the cover clamping mechanisms, the drying mechanisms are arranged along the falling channels, and the cover falling channels are provided with hollow parts.

An openable cover blocking mechanism is arranged in the drying area corresponding to the cover falling channel in the drying cabin.

The chain type circulating conveying mechanism comprises a chain, chain plates are uniformly arranged along the circulating direction of the chain, a plurality of cover clamping mechanisms are arranged on the chain plates along the length direction of the chain plates, and the cover clamping mechanisms are arranged in rows by taking the chain plates as units and are arranged in a plurality of rows in the circulating direction of the chain to form a plurality of rows and a plurality of columns of cover clamping mechanisms; the cover clamping mechanism is provided with a cover bayonet, the cover bayonet is positioned outside the chain plate, the cover clamping mechanism is further provided with a driving wheel, and the driving wheel is used for opening the cover bayonet by receiving external action.

The front end of the clamping mechanism is provided with the cover bayonet.

The cap bayonet is a cap loose bayonet that is capable of movably restraining the cap in position.

The cover clamping mechanism comprises a first clamp arm, a second clamp arm and a fixing frame, wherein the fixing frame is connected with the chain plate, the first clamp arm and the second clamp arm are rotationally connected with the fixing frame, the rotation axis of the driving wheel, the rotation axis of the first clamp arm and the rotation axis of the second clamp arm are parallel to the chain wheel axis of the chain type circulating conveying mechanism, a reset spring is arranged between the first clamp arm and the second clamp arm, and the driving wheel is connected with the first clamp arm or the second clamp arm.

The cover loose bayonet comprises clamping grooves positioned at the front ends of the first clamp arm and the second clamp arm, the clamping grooves comprise cover limiting structures positioned at the front ends, the cover loose bayonet is synthesized by the clamping grooves of the first clamp arm and the second clamp arm, the size of the cover loose bayonet is larger than the circumferential size of a clamped part of the cover, and the cover can move under the limitation of the cover loose bayonet; the first clamp arm and the second clamp arm are of plate-shaped structures at the loose type bayonet of the cover, the clamping groove is formed by the front end of the plate-shaped structures, and the side face of the plate is used as a clamping cover working position.

The cover feeding position and the cover separating position are respectively provided with a first opening control mechanism and a second opening control mechanism, and the opening control mechanism is matched with the driving wheel and used for opening the cover clamping mechanism by circular motion of the driving wheel.

For the cover feeding, a plurality of rows of cover falling channels which correspond to the rows of the cover clamping mechanisms and utilize the gravity of the cover are arranged, the bottom of each cover falling channel is provided with a cover feeding channel which is inwards connected to a cover loosening type bayonet of the cover clamping mechanism at the cover feeding position, the cover pushing mechanism is arranged at the outer end corresponding to the cover feeding channel, and a first opening control mechanism is arranged in the chain type circulating conveying mechanism; the cover falling channel and the cover entering channel are both provided with limiting structures of the cover, so that the cover can fall down laterally and the clamped part of the cover is axially matched with the cover bayonet, and the cover is pushed into the cover bayonet laterally.

The cover inlet channel is a horizontal cover inlet channel.

The first opening control mechanism comprises a connecting shaft and a plurality of driving blocks corresponding to the number of columns of the cover clamping mechanism, the driving blocks are connected with the connecting shaft, and the connecting shaft is driven to rotate by power.

The second opening control mechanism is a plurality of fixing plates or fixing blocks which are matched with the driving wheels of the cover clamping mechanisms in each row respectively.

The cap has a neck as a clamped portion, and the cap loose bayonet is larger in size than the circumferential dimension of the neck of the cap, so that the cap can be movably limited in position.

And a cover transfer slideway is also arranged between the position of the cover leaving the chain type circulating conveying mechanism and the cover falling channel of the drying box.

The cover transfer slideway uses the clamped part of the cover as a guiding object to guide the cover into a cover falling channel of the drying cabin in a lateral lying manner.

The utility model also provides a transfer driving mechanism which comprises a plurality of rotary deflector rods respectively corresponding to the covers in each row, wherein the positions of the rotary deflector rods are staggered with the clamped parts of the covers in the axial direction, and the rotary deflector rods utilize the conveying time intervals of the front cover clamping mechanism and the rear cover clamping mechanism in the conveying route direction to dial the covers and rotate to dial back the working starting points of the covers.

By adopting the technical scheme of the utility model, the caps can be conveyed into and out of the sterilizing liquid container, sterilization is carried out in a soaking mode, the sterilization time of each cap is related to the running speed of the conveying mechanism, the sterilization time is consistent, the caps are in a clamped state in the whole sterilization process, the caps can be well kept by the cap clamps, various actions can be carried out, the positioning of the caps is not influenced, the conveying is ordered, and each cap can be subjected to the sterilization process in a consistent state, so that a stable and consistent sterile effect is achieved.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of a cap sterilization system of the present utility model.

Fig. 2 and 3 are schematic views of an embodiment of the cap sterilization system of the present utility model from different perspectives, respectively.

Fig. 4 is a schematic view showing an inner structure of a drying compartment of the embodiment of the cover sterilization system of the present utility model.

Fig. 5 is a schematic view of the transfer mechanism for delivering the lid from the endless conveyor to the drying compartment.

Fig. 6 is a schematic view of the cap transfer mechanism of the present utility model.

Fig. 7 is a schematic view of an embodiment of the cap retaining mechanism of the present utility model.

Fig. 8 is a schematic view of a mount in the lid retaining mechanism.

Fig. 9 is a side view of the cover in this embodiment.

Fig. 10 is a schematic diagram of the cover in this embodiment.

Fig. 11 is a schematic view of a cap inlet structure and an opening control structure at the cap inlet.

Fig. 12 is a schematic view of an opening control structure where the cap leaves the cap transfer mechanism.

Fig. 13 is a schematic view of another embodiment of a sterilization section.

Detailed Description

The cover sterilization system provided by the utility model can sterilize in a soaking way and thoroughly sterilize. Referring to the drawings, the cap sterilization system includes a chain circulation conveyor mechanism for conveying caps, a sterilization chamber 400, a washing chamber 500, and a drying chamber 600;

the chain wheel axis of the chain type circulating conveying mechanism is a horizontal axis, a plurality of downward protruding conveying lines 300 are arranged at the lower part of a circulating loop of the chain type circulating conveying mechanism, the sterilizing cabin 400 and the cleaning cabin 500 are positioned at the lower part of the circulating loop, and the downward protruding conveying line wheels can pass through and are immersed into spraying positions in the sterilizing cabin 400 and the cleaning cabin 500; the chain type circulating conveying mechanism is provided with a plurality of rows and columns of clamping mechanisms, and can clamp the cover 200 in a side lying state.

The downward protruding conveying line 300 protrudes downward in a U shape, and the cover 200 is conveyed downward in a U-shaped conveying line to be immersed in the sterilizing liquid and conveyed upward to be separated from the sterilizing liquid; the cover is conveyed downwards through the spraying position in a U-shaped conveying route.

Further, in the cleaning chamber 500, after the cover 200 leaves the cleaning liquid, the cleaning liquid is sprayed and drained during the ascending path to blow off the water on the cover, thereby improving the subsequent drying effect, and in this regard, a clean air spraying port 501 is provided on the side of the cleaning chamber 500 corresponding to the ascending path, and reference numeral 502 is an air inlet pipe. In order to improve the washing effect, in the washing compartment 500, a U-shaped conveying path is used, before the cover enters the washing liquid, sterile water is sprayed during conveying along the descending path, so that the washing effect is improved, and a sterile water nozzle 503 is arranged on the side of the washing compartment 500 corresponding to the descending conveying path, and reference numeral 504 is a water inlet pipe. A partition 505 is provided in the middle of the U-shaped conveying path to isolate the ascending path and the descending path in the cleaning chamber 500. Reference numeral 506 is a bottom water outlet of the washing compartment 500.

The utility model utilizes the characteristics of U-shaped conveying and the characteristics of the sterilization cabin as a soaking cabin, and the liquid level control mechanism is arranged to control the liquid level of the sterilization liquid in the sterilization cabin 400, so that the sterilization liquid can be controlled to be at a desired liquid level, and the sterilization time is controlled by the liquid level. As shown in fig. 13, a communicating tube type liquid level control mechanism 402 utilizing the principle of liquid level contour is provided in this embodiment.

When the sterilizing liquid is supplied, a special system heats the sterilizing liquid to a certain temperature, and then the sterilizing liquid is conveyed to a sterilizing working link from a pipeline, and the sterilizing cabin is not required to be further heated. However, for some sterilizing fluids, such as hydrogen peroxide, the temperature is slightly higher, as shown in fig. 2 and 3, and in the utility model, the characteristic of soaking sterilization is utilized.

The drying compartment 600 includes a plurality of rows of cover falling channels 601 corresponding to the plurality of rows of cover holding mechanisms, the covers fall by gravity in a lateral lying manner, a drying mechanism is arranged along the falling channels, a plurality of drying branches which are respectively arranged corresponding to the extending of the cover falling channels can be adopted, a blowing pipe 604 can be adopted for the drying branches, a blowing slit 605 which is arranged along the length direction of the blowing pipe is arranged on the blowing pipe 604, and a ventilation part 602 is arranged on the cover falling channels, so that hot air blows the cover 200. Reference numeral 603 is the supply manifold of the plurality of blowpipes 604.

An openable blocking mechanism is arranged in the drying area corresponding to the cover falling channel 601 in the drying compartment 600, so that the stability of drying quality is improved. The blocking mechanism may include movable stoppers 608 respectively corresponding to the cover falling passages 601, and an air cylinder 609 driving the movable stoppers 608 to advance and retreat, and the operation cycle of the air cylinder 609 is controlled by the control system. The movable stoppers 608 are inserted into the cap falling passage 601 by driving the air cylinders 609 and are retracted from the cap falling passage 601, the blocking mechanism is provided with guide sleeves 610, each movable stopper 608 is connected to a connecting frame 611, the guide frames 611 are slidably connected to the guide sleeves 610, and the connecting frame 611 is connected to the air cylinders 609.

A cleaning nozzle 606 may be further disposed in the drying chamber 600, so that cleaning and sterilizing may be directly performed in the chamber without disassembly after the completion of the operation, and reference numeral 607 denotes a liquid supply manifold of the cleaning nozzle 606.

The chain type endless conveying mechanism provided by the present utility model will be described in detail below.

The chain type circulating conveying mechanism comprises a chain 101, chain plates 102 are uniformly arranged along the circulating direction of the chain, reference numeral 103 is a chain supporting plate which can be in sliding fit with the chain 101, the chain can walk on the chain supporting plate 103, the chain type circulating conveying mechanism is provided with a left chain 101 and a right chain 101, two ends of the chain plates 102 are respectively connected with the left chain and the right chain, a plurality of cover clamping mechanisms are arranged on the chain plates 102 along the length direction of the chain plates, and the cover clamping mechanisms are arranged in rows by taking the chain plates as units and are arranged in a plurality of rows in the circulating direction of the chain to form a plurality of rows and a plurality of columns of cover clamping mechanisms; the cover clamping mechanism is provided with a cover loose bayonet 10, the cover 200 can be movably limited in position, the cover loose bayonet is located outside the chain plate 102, the cover loose bayonet 10 is located at the front end of the cover clamping mechanism, the opening and closing stroke of the cover clamping mechanism can be reduced, the cover is rapidly opened and reset, the cover 200 can be movably limited in position, the cover clamping mechanism is further provided with a driving wheel 13, and the driving wheel 13 is used for opening the cover loose bayonet 10 by receiving external action.

The cover clamping mechanism comprises a first clamp arm 11, a second clamp arm 12 and a fixing frame 14, the fixing frame 14 is connected with a chain plate 102, the first clamp arm 11 and the second clamp arm 12 are rotationally connected with the fixing frame 14, the rotation axes of a driving wheel 13, the first clamp arm 11 and the second clamp arm 12 are parallel to the chain wheel axis of the chain type circulation conveying mechanism, a reset spring 15 is arranged between the first clamp arm 11 and the second clamp arm 12 and used for driving the first clamp arm 11 and the second clamp arm 12 to close the cover loose type bayonet 10, the driving wheel 13 is connected with the first clamp arm 11 or the second clamp arm 12, the chain wheel axis of the chain type circulation conveying mechanism is a horizontal axis, and therefore the cover 200 can slide into the cover loose type bayonet more smoothly and is convenient for cover draining.

The loose lid bayonet 10 includes a slot 10-1 at the front ends of the first and second arms, the slot 10-1 includes a lid limit structure 10-2, such as a limit protrusion, at the front end, the slot 10-1 of the first and second arms synthesizes the loose lid bayonet 10, the loose lid bayonet has a size larger than the circumferential size of the held portion of the lid, such as a diameter smaller than the width of the bayonet 10 when the held portion is circular, and a side length smaller than the width of the bayonet 10 when the held portion is square, the lid can be movably limited in position, and the contracted portion can be used as the held portion if the lid has a locally contracted portion, which may be referred to as a neck.

The first clamp arm 11 and the second clamp arm 12 are in plate-shaped structures at the positions of the cover loose type bayonets 10, notch shapes of the first clamp arm 11 and the second clamp arm 12 are facilitated to form the clamping groove 10-1 and the cover limiting structure 10-2 at the front end of the clamping groove, and the side surfaces of the plates are used as clamping cover working positions. In operation, the cap 200 is input by opening the cap loose 10 and the cap 200 is closed, so that the cap 200 cannot be pulled out, and the cap 200 is slotted in the space of the cap loose 10, ensuring that the sterilizing liquid can soak the entire cap 200.

The utility model respectively sets a first opening control mechanism and a second opening control mechanism at the position of a cover entering position and a cover leaving from the cover conveying mechanism, and the opening control mechanism is matched with the driving wheel 13 and is used for driving the driving wheel 13 to do circular motion so as to open the cover clamping mechanism.

For cap feeding, the utility model is provided with a plurality of rows of cap falling channels 701 which correspond to the rows of cap clamping mechanisms and utilize the gravity of caps, the bottom of the cap falling channels 701 is provided with cap feeding channels 702 which are connected to cap loosening bayonets of the cap clamping mechanisms at the cap feeding positions inwards, and the cap feeding channels 702 can be horizontal cap feeding channels. A cover pushing mechanism is arranged at the outer end of the cover feeding channel 702, and a first opening control mechanism is arranged in the chain type circulating conveying mechanism; the cover falling channel 701 and the cover entering channel 702 are provided with cover limiting structures, which can be channel plates 703 and 704 forming the cover falling channel 701 and the cover entering channel 702, so that the cover 200 can be fallen down laterally and the clamped part 201 can be matched with the position of the cover loose bayonet 10 in the axial direction, such as being basically in the same plane, and the cover 200 is pushed into the cover loose bayonet 10 laterally.

The first opening control mechanism comprises a connecting shaft 51 and a plurality of driving blocks 52 corresponding to the number of columns of the cover clamping mechanism, the driving blocks 52 are connected with the connecting shaft 51, the connecting shaft is driven to rotate by power 53, when the driving blocks 52 rotate to contact with the driving wheel 13 of the cover clamping mechanism positioned at the opening part of the cover inlet channel 702, the driving wheel 13 is pressed, the clamp arm can be forced to rotate, the cover loose bayonet 10 is opened, at the moment, the cover is pushed into the cover loose bayonet 10 under the pushing of the cover pushing mechanism, and then the driving blocks 52 leave the driving wheel 13 in the continuous rotation or reciprocating rotation process, so that the clamp arm is reset to close the cover loose bayonet 10 under the driving of the reset spring 15. The cap pushing mechanism may employ an air cylinder 61 and a push rod 62 corresponding to the cap inlet channel 702, and a guide structure 63 for movement of the push rod mechanism.

On the chain type circulation conveying mechanism, after the cover is put in, the conveying route enters the U-shaped downward protruding conveying route of the corresponding sterilization cabin 400.

The second opening control mechanism is a plurality of fixing plates 7 or fixing blocks which are respectively matched with the driving wheels 13 of the cover clamping mechanisms of the rows. The fixed plate 7 is provided with a control inclined plane 70, so that the driving wheel 13 of the cover clamping mechanism which moves is gradually pressed by the inclined plane 70, and the clamp arm is driven to rotate against the elastic force of the reset spring 15.

Between the position of the cover leaving the chain type circulating conveying mechanism and the cover falling channel of the drying box, a cover transfer slideway 81 is further arranged, the clamped part of the cover can be used as a guiding object, the cover can be laterally guided into the cover falling channel 601 of the drying cabin, the transfer slideway 81 can be formed by a metal plate, and the edge of the plate is used as a falling track matched with the clamped part of the cover. The utility model also provides a transfer driving mechanism which comprises a plurality of rotary deflector rods 82 respectively corresponding to the covers in each row, wherein the positions of the rotary deflector rods 82 are axially staggered with the clamped parts of the covers, and the rotary deflector rods 82 utilize the conveying time intervals of the front cover clamping mechanism and the rear cover clamping mechanism in the conveying route direction to dial the covers and rotate to dial the working starting points of the covers. Each rotary lever 82 is integrally connected to a rotary shaft 83, and the rotary shaft 83 is rotated by a motor.

The bottom of the drying cabin and the top cabin 800 provided with the chain type circulating conveying mechanism are both provided with an air extraction opening 900 and an air extraction device.

Unless specifically stated otherwise, in the present utility model, if the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, they are merely for convenience in description and simplification of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, so that the terms describing the orientation or positional relationships in the present utility model are used for illustration only and are not to be construed as limitations of the present patent, and it is possible for those skilled in the art to understand the specific meanings of the terms described above in conjunction with the drawings according to circumstances.

Unless specifically stated or limited otherwise, the terms "disposed," "sandwiched," and "connected" herein are to be construed broadly, e.g., they may be fixed, they may be removably, or they may be integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The above embodiments are merely examples of the present utility model, but the present utility model is not limited thereto, and any changes or modifications made by those skilled in the art are included in the scope of the present utility model.

Claims (18)

1. The cover sterilization system is characterized by comprising a chain type circulating conveying mechanism for conveying covers, a sterilization cabin, a cleaning cabin and a drying cabin;

the chain wheel axis of the chain type circulating conveying mechanism is a horizontal axis, a plurality of downward protruding conveying lines are arranged at the lower part of a circulating loop of the chain type circulating conveying mechanism, and the sterilizing cabin and the cleaning cabin are correspondingly positioned at the lower part of the circulating loop and enable the downward protruding conveying line to pass through and be immersed into the sterilizing cabin and the spraying position passing through the cleaning cabin; the chained circulating conveying mechanism is provided with a plurality of rows and a plurality of columns of clamping mechanisms, and can clamp the covers in the side lying state.

2. The lid sterilization system of claim 1, wherein the downwardly projecting conveyor line is a U-shaped line, a lower portion of which is submerged in the sterilization liquid whose level is controlled by the liquid level control mechanism in the sterilization chamber.

3. The lid sterilization system according to claim 1, wherein the downward projecting conveyor line is a U-shaped line, the washing compartment is provided with a water spraying mechanism and a gas spraying mechanism, the nozzle of the water spraying mechanism is provided corresponding to the downward conveyor path of the lid, the nozzle of the gas spraying mechanism is provided corresponding to the upward conveyor path of the lid, and the downward conveyor path and the upward conveyor path of the lid are separated.

4. The lid sterilization system of claim 1, wherein the drying compartment includes a plurality of rows of lid drop channels corresponding to the plurality of rows of lid retaining mechanisms, the drying mechanism being disposed along the drop channels, the lid drop channels being provided with the void portions.

5. The lid sterilization system of claim 4, wherein an openable lid blocking mechanism is provided in the drying compartment in the drying region corresponding to the lid drop path.

6. The cover sterilization system of claim 1, comprising a chain type circulation conveying mechanism, wherein the chain type circulation conveying mechanism comprises a chain, chain plates are uniformly arranged along the circulation direction of the chain, a plurality of cover clamping mechanisms are arranged on the chain plates along the length direction of the chain plates, and the cover clamping mechanisms are arranged in rows by taking the chain plates as units and are arranged in a plurality of rows in the circulation direction of the chain to form a plurality of rows and a plurality of rows of cover clamping mechanisms; the cover clamping mechanism is provided with a cover bayonet, the cover bayonet is positioned outside the chain plate, the cover clamping mechanism is further provided with a driving wheel, and the driving wheel is used for opening the cover bayonet by receiving external action.

7. The lid sterilization system of claim 6, wherein the lid bayonet is a lid loose bayonet that is capable of movably restraining the lid in position.

8. The lid sterilization system of claim 6, wherein the lid retaining mechanism comprises a first jaw arm, a second jaw arm, and a fixed frame, the fixed frame is connected to the link plate, the first and second jaw arms are rotatably connected to the fixed frame, the rotational axes of the drive wheel, the first and second jaw arms are parallel to the sprocket axis of the chain circulation conveyor, a return spring is disposed between the first and second jaw arms, and the drive wheel is connected to the first or second jaw arm.

9. The cap sterilization system of claim 7, wherein the cap loose bayonet comprises a clamping groove at the front ends of the first clamp arm and the second clamp arm, the clamping groove comprises a cap limiting structure at the front ends, the clamping groove of the first clamp arm and the clamping groove of the second clamp arm form the cap loose bayonet, the size of the cap loose bayonet is larger than the circumferential size of the clamped part of the cap, and the cap can move under the limit of the cap loose bayonet; the first clamp arm and the second clamp arm are of plate-shaped structures at the loose type bayonet of the cover, the clamping groove is formed by the front end of the plate-shaped structures, and the side face of the plate is used as a clamping cover working position.

10. The lid sterilization system of claim 6, wherein a first opening control mechanism and a second opening control mechanism are provided at a lid-in position and a lid-out position of the lid conveyance mechanism, respectively, the opening control mechanism being engaged with the drive wheel for the drive wheel to perform a circular motion to open the lid-holding mechanism.

11. The lid sterilization system according to claim 6, wherein for the access lid, a plurality of rows of lid falling passages using lid gravity corresponding to the rows of lid holding mechanisms are provided, an access lid passage inwardly connected to the lid opening type of the lid holding mechanism at the access lid is provided at the bottom of the lid falling passage, a lid pushing mechanism is provided at the outer end corresponding to the access lid passage, and a first opening control mechanism is provided inside the chain circulation conveyor; the cover falling channel and the cover entering channel are both provided with limiting structures of the cover, so that the cover can fall down laterally and the clamped part of the cover is axially matched with the cover bayonet, and the cover is pushed into the cover bayonet laterally.

12. The lid sterilization system of claim 11, wherein the access opening is a horizontal access opening.

13. The lid sterilization system of claim 10, wherein the first opening control mechanism comprises a connecting shaft and a plurality of drive blocks corresponding to the number of columns of lid retaining mechanisms, the plurality of drive blocks being coupled to the connecting shaft, the connecting shaft being driven in rotation by power.

14. The lid sterilization system of claim 10, wherein the second opening control mechanism is a plurality of fixed plates or blocks that cooperate with the drive wheels of each row of lid retaining mechanisms, respectively.

15. The cap sterilization system of claim 7, wherein the cap has a neck as the retained portion, and wherein the cap loose bayonet is sized to be larger than a circumferential dimension of the neck of the cap to enable the cap to be movably restrained in position.

16. The lid sterilization system of claim 1, wherein a lid transition chute is further provided between the location where the lid leaves the chain circulation conveyor and the lid drop path of the oven drying box.

17. The lid sterilization system of claim 11, wherein the lid transfer chute guides the lid laterally into the lid drop channel of the drying chamber using the gripped portion of the lid as a guide.

18. The cap sterilization system of claim 16, wherein a transfer driving mechanism is further provided, the transfer driving mechanism comprises a plurality of rotary levers corresponding to the respective columns of caps, the rotary levers are positioned to axially shift the held portions of the caps, and the rotary levers utilize the conveying time intervals of the front and rear cap holding mechanisms in the conveying route direction to dial the caps and rotate the operation starting points of the dial-back caps.

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