Cap screwing device

Abstract

The utility model relates to production line equipment technical field provides a kind of capping device, including machine body, capping execution mechanism, fixed assembly and capping recycling mechanism, machine body is equipped with conveying space, conveying space is used to accommodate bottle body conveying mechanism;Capping execution mechanism is located in machine body, capping execution mechanism is suitable for close or away from conveying space, to clamp the bottle cap on bottle body conveying mechanism and rotate;Fixed assembly is located in machine body, for fixing the bottle body on bottle body conveying mechanism;Capping recycling mechanism is located in machine body, capping execution mechanism is suitable for the bottle cap that is screwed down is transferred to capping recycling mechanism.The utility model cooperates with fixed assembly by setting movable capping execution mechanism, realizes bottle cap automatic rotation and bottle body stable fixation, simultaneously configures capping recycling mechanism to complete cover directional collection, with the advantages of improving bottle cap processing efficiency, reducing artificial cost and reducing health and safety hazards.

Description

Technical Field

[0001] This utility model relates to the field of production line equipment technology, and in particular to a cap-tightening device. Background Technology

[0002] In the dairy packaging industry, PET bottles are commonly used containers, and the opening and recycling of their caps has always presented numerous technical challenges. Traditional manual capping requires a large number of operators and is inefficient. This method not only wastes human resources but also significantly increases production costs. More importantly, the unavoidable human contact during manual operation may pose potential hygiene and safety hazards.

[0003] Meanwhile, in the recycling and processing of PET bottles, since the caps and bottles are made of different materials, they must be effectively separated to achieve efficient recycling. However, in existing processing technologies, pre-treatment steps such as cap removal still mainly rely on manual operation. This method not only consumes a large amount of manpower, but also fails to meet the separation efficiency requirements of large-scale recycling. Especially when processing large volumes, the limitations of manual operation become more prominent, severely restricting the improvement of the purity and utilization rate of recycled PET bottle materials. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in related technologies. To this end, this invention proposes a cap-screwing device, which aims to improve bottle cap processing efficiency, reduce labor costs, and minimize hygiene and safety hazards.

[0005] The cap-screwing device according to a first aspect of the present invention includes: The machine body is provided with a conveying space for accommodating a bottle conveying mechanism. A capping actuator is provided on the machine body and is adapted to be close to or away from the conveying space to clamp and rotate the bottle cap on the bottle conveying mechanism; A fixing component is provided on the machine body and is used to fix the bottle body on the bottle conveying mechanism; A cap-recycling mechanism is provided on the machine body, and the cap-screwing actuator is adapted to transfer the unscrewed bottle cap to the cap-recycling mechanism.

[0006] According to the embodiments of the present invention, the cap-screwing device achieves automated cap unscrewing and stable bottle body fixation by setting a movable cap-screwing actuator and a fixed component to work together. At the same time, it is equipped with a cap-screwing recycling mechanism to complete the directional collection of caps. It has the advantages of improving cap processing efficiency, reducing labor costs and reducing hygiene and safety hazards.

[0007] According to one embodiment of the present invention, the cap-tightening and recycling mechanism includes a recycling box, the recycling box having a receiving groove, and the cap-tightening actuator being located above the opening of the receiving groove.

[0008] According to one embodiment of the present invention, one end of the recycling box is provided with an outlet that communicates with the receiving slot.

[0009] According to one embodiment of the present invention, the bottom wall of the receiving groove is gradually inclined downwards in the direction of the outlet.

[0010] According to one embodiment of the present invention, the cap-tightening recycling mechanism further includes an air-blowing component, which is located at the end of the recycling box away from the outlet, and is adapted to blow air into the receiving groove.

[0011] According to one embodiment of the present invention, the recycling box has an air blowing hole at one end away from the outlet that communicates with the receiving groove, and the air blowing element is disposed on the outer wall of the recycling box and blows air toward the air blowing hole.

[0012] According to one embodiment of the present invention, the recycling box includes a first section and a second section connected to each other, the first section and the second section being arranged at an angle, the first section being provided with the receiving groove, the second section being provided with a discharge channel communicating with the receiving groove, and the outlet being located at the end of the second section away from the first section.

[0013] According to one embodiment of the present invention, the fixing component includes two driving clamps, which are respectively located on opposite sides of the conveying space. The driving clamps are used to abut against the bottle body, and the two driving clamps are adapted to move closer to or further away from each other.

[0014] According to one embodiment of the present invention, the machine body is provided with a displacement track, and the cap-tightening actuator includes: A displacement component, which is movably disposed on the displacement track to move closer to or further away from the conveying space; A lifting assembly, wherein the lifting assembly is disposed on the displacement assembly; A cap screwing assembly is provided on the lifting assembly, the lifting assembly is adapted to drive the cap screwing assembly to lift and lower, and the cap screwing assembly is adapted to clamp the bottle cap and rotate it.

[0015] According to one embodiment of the present invention, the screw cap assembly includes: Mounting bracket, which is mounted on the lifting assembly; Multiple cap screwing drive components and multiple cap screwing assemblies are spaced apart on the mounting frame; Multiple cap-screwing jaws are provided, and each of the multiple cap-screwing jaws is correspondingly arranged with a multiple cap-screwing drive unit. The cap-screwing jaws are adapted to grip or release the bottle cap, and the cap-screwing drive unit is adapted to drive the cap-screwing jaws to rotate.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the screw cap device provided in an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the screw cap recycling mechanism provided in this embodiment of the utility model.

[0020] Figure label: 1. Body; 11. Conveying space; 12. Displacement track; 2. Cap tightening mechanism; 21. Displacement component; 22. Lifting component; 23. Cap tightening component; 231. Mounting bracket; 232. Cap tightening drive component; 233. Cap tightening gripper; 3. Fixing component; 31. Drive clamp; 4. Cap tightening recovery mechanism; 41. Recovery box; 411. First section; 4111. Receiving slot; 412. Second section; 4121. Outlet; 42. Air blowing component. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0024] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0026] In existing technologies, the recycling and processing of PET bottles for dairy products has long relied on manual operations. Traditional manual capping methods suffer from low efficiency, high labor costs, and difficulties in ensuring hygiene. During the PET bottle recycling process, the caps and bottle bodies need to be separated due to material differences. However, manual sorting is not only time-consuming and labor-intensive but also results in cap residue leading to insufficient purity of the recycled materials. For example, in a dairy recycling workshop, operators must stand continuously beside the production line, manually unscrewing bottle caps and sorting them. Prolonged work easily leads to fatigue and errors, and human contact with the bottle openings can cause secondary contamination.

[0027] Therefore, as Figure 1 As shown, this application proposes a capping device including a body 1, a capping actuator 2, a fixing component 3, and a capping recycling mechanism 4. The body 1 is provided with a conveying space 11 for accommodating a bottle conveying mechanism. The movable capping actuator 2 is provided on the body 1 for clamping the bottle cap and rotating it. The fixing component 3 is used to constrain the bottle body. The capping recycling mechanism 4 receives the cap that has been unscrewed.

[0028] The structure comprises: Body 1, the frame structure supporting all functional modules, which can be achieved by combining a welded metal frame with panels; its internal spatial layout must accommodate the coordinated operation of the conveying and operating mechanisms. Capping mechanism 2, the mechanical device for clamping and rotating bottle caps, can be achieved using a servo motor-driven robotic arm in conjunction with pneumatic grippers for three-dimensional movement and rotation control. Fixing component 3, the constraint mechanism limiting bottle displacement, can be achieved using bidirectional pneumatic push rods driving clamping blocks 31 to form symmetrical clamping. Capping recycling mechanism 4, the storage container for collecting separated bottle caps, can be achieved using an inclined guide chute in conjunction with an air blowing device for directional conveying of bottle caps.

[0029] Understandably, the machine body 1 integrates an electrical control module, including a PLC controller, drive power supply, and sensor signal processing unit. It receives feedback from position sensors, torque sensors, etc., and coordinates the actions of various mechanisms such as feeding, conveying, capping, and recycling to achieve automated processes. It is also connected to an external human-machine interface (HMI) for parameter setting, status monitoring, and fault alarm.

[0030] Sensor modules are distributed throughout the feeding, capping, and conveying processes. For example, photoelectric sensors detect the bottle's position, torque sensors monitor the capping force, and displacement sensors provide feedback on the module's position, providing data support for precise equipment operation and safety protection, and preventing abnormalities such as dry tightening and overload.

[0031] For example, after the bottle enters the machine body 1 through the conveying mechanism, the pneumatic clamping block of the fixing component 3 synchronously applies clamping force to the bottle body, eliminating displacement deviation caused by rotational torque. The gripper of the capping actuator 2, driven by a servo motor, precisely positions the bottle cap, clamps it, and rotates it with a preset torque to remove the bottle cap. The decapped bottle cap is transferred to the guide trough inlet of the recycling mechanism. The inclined trough uses gravity to make the bottle cap slide towards the collection area, and airflow is used to accelerate the transfer if necessary. The various modules achieve action timing matching through the PLC control system, forming an unmanned continuous operation process.

[0032] In one embodiment, the capping device is driven by a pneumatic system. Through air source processing, valve control, and coordinated actuators, it achieves cap gripping, cap dropping, and bottle clamping actions, providing stable pneumatic power and precise motion control for automatic capping and cap recycling of PET bottles. Specific functions are as follows: Air source treatment: The pneumatic shut-off valve and pneumatic triplet filter, regulate the pressure, and add oil mist to the input compressed air, outputting a clean, stable air source with an appropriate amount of lubricating components to ensure the reliable operation of pneumatic components. The pneumatic shut-off valve switches the air source on and off, and the triplet removes impurities and regulates the pressure.

[0033] Cap gripping control: The solenoid valve and three-position valve plate work together to drive the cap gripping actuator to achieve the action of gripping bottle caps. By controlling the on and off of the solenoid valve and the reversal of the three-position valve plate, the extension and retraction of the cap gripping cylinder and other components are precisely controlled to complete the cap gripping and release process, which is suitable for multi-station (4 sets of cap grippers) synchronous or individual operation.

[0034] Bottle cap recycling: The nozzle, with the help of an air source, blows the bottle cap through the airflow after the cap gripping actuator releases the cap, ensuring that the cap falls accurately into the designated position.

[0035] Bottle clamping action: The electromagnetic control cylinder clamps and releases PET bottles, providing stable support for capping and ensuring that the bottle does not shift when the capping torque is applied. The extension and retraction of the cylinder is controlled by the solenoid valve to meet the bottle clamping and releasing rhythm in automated production.

[0036] Silencing and air path integration: The silencer reduces exhaust noise and optimizes the working environment; the three-position valve plate integrates multiple air paths with a neat layout, facilitating air path distribution and control, and improving system integration and maintenance convenience.

[0037] Understandably, this application achieves full automation of the bottle cap unscrewing and recycling process. Operators only need to monitor the equipment's operating status. The physical separation accuracy of the bottle body and bottle cap is significantly improved, and the sealed design of the production environment effectively isolates human contact.

[0038] Please refer to the reference. Figure 1 and Figure 2This application further proposes a cap-tightening and recycling mechanism 4 including a recycling box 41, the recycling box 41 having a receiving groove 4111, and the cap-tightening actuator 2 located above the opening of the receiving groove 4111.

[0039] The recycling box 41 is a container for centralized storage of bottle caps, which can be a rectangular box made of metal or plastic. Its internal space is used to receive the unscrewed bottle caps. The receiving groove 4111 is a recessed area inside the recycling box 41, which can be formed into a groove structure by stamping or injection molding. The groove opening is larger than the diameter of the bottle cap to ensure that the bottle cap can be smoothly inserted. The area above the groove opening refers to the position of the cap-screwing actuator 2, which is perpendicular to the opening area of ​​the receiving groove 4111. It can be positioned by a robotic arm or guide rail so that the actuator can directly align with the groove opening when releasing the bottle cap.

[0040] For example, after the cap-screwing mechanism 2 completes the cap-screwing operation, the clamped cap is released into the groove area of ​​the receiving groove 4111. Since the cap-screwing mechanism 2 is vertically aligned with the groove opening, the cap falls directly into the receiving groove 4111 under the action of gravity. The depth of the receiving groove 4111 can be set to more than twice the height of the cap to ensure that the cap is completely inserted into the groove and will not pop out.

[0041] This application further proposes that one end of the recycling box 41 has an outlet 4121 that communicates with the receiving groove 4111. The outlet 4121 refers to an opening structure located at the end of the recycling box 41 and communicating with the receiving groove 4111. Specifically, it can be in the form of a rectangular or circular hole, and its size is slightly larger than the diameter of the bottle cap to ensure smooth discharge.

[0042] For example, after the capping actuator 2 transfers the bottle cap to the receiving groove 4111, the bottle cap moves along the receiving groove 4111 towards the outlet 4121 under gravity or external assistance, and finally leaves the recycling box 41 through the outlet 4121 and enters the external collection device. The opening position of the outlet 4121 is consistent with the extension direction of the receiving groove 4111, so that the bottle cap can be discharged directly without changing direction during the movement, avoiding accumulation due to path turning.

[0043] This application further proposes that the bottom wall of the receiving tank 4111 is gradually inclined downward in the direction of the outlet 4121.

[0044] The gradual downward slope of the bottom wall of the receiving groove 4111 refers to the formation of a continuous slope on the bottom wall, which can be achieved by using a planar or arc-shaped structure. The slope direction corresponds to the position of the outlet 4121, so that the bottle cap slides naturally toward the outlet 4121 under the action of gravity.

[0045] For example, after the capping actuator 2 transfers the bottle cap into the receiving slot 4111, the bottle cap contacts the inclined bottom wall surface and slides towards the outlet 4121 along the inclined direction under the action of gravity. The slope design of the inclined bottom wall ensures that the bottle cap can move by its own weight without external driving force. The inclination angle of the bottom wall can be adjusted according to the size or material of the bottle cap, for example, using an inclination angle of 5° to 30° to accommodate bottle caps of different sizes. This structure uses physical guidance to arrange the bottle caps in an orderly manner and continuously discharge them, avoiding stagnation or blockage caused by disorderly accumulation. Understandably, this prevents the bottle caps from accumulating in the recycling box 41, ensuring that the bottle caps automatically slide towards the outlet 4121 along a predetermined path, improving the continuity and stability of the recycling process, while reducing the frequency of downtime for cleaning due to blockage.

[0046] This application further proposes to provide an air blowing element 42 at the end of the recycling box 41 away from the outlet 4121, and the air blowing element 42 blows air into the receiving groove 4111.

[0047] Among them, the air blowing component 42 refers to a power device that can generate directional airflow, which can be implemented by an air pump or a centrifugal fan. Its installation position is limited to the end area of ​​the recycling box 41, forming a straight-facing layout with the outlet 4121.

[0048] For example, when the air blowing component 42 is activated, the airflow enters the receiving groove 4111 from the end region of the recycling box 41, forming a continuous airflow field along the length of the groove. Bottle caps in the receiving groove 4111 are pushed by the airflow and move towards the outlet 4121 along the inclined direction of the bottom wall. For bottle caps that are stuck due to surface friction or structural jamming, the kinetic energy generated by the airflow can overcome their static friction and make them re-enter the moving state. When the bottle caps move to the area of ​​the outlet 4121, they naturally detach from the recycling box 41 under the action of gravity.

[0049] Understandably, this application achieves directional and continuous conveying of bottle caps within the recycling bin 41, eliminating retention caused by frictional resistance. The airflow-driven method eliminates the need for contact-type mechanical structures, reducing equipment maintenance frequency and making it particularly suitable for recycling lightweight plastic bottle caps with smooth surfaces.

[0050] This application further proposes that the end of the recycling box 41 away from the outlet 4121 is provided with an air blowing hole that connects to the receiving groove 4111, and the air blowing element 42 is provided on the outer wall of the recycling box 41 and blows air toward the air blowing hole.

[0051] The air inlet refers to a channel structure located at the end of the recycling box 41 and communicating with the receiving tank 4111. It can be implemented using a circular or rectangular through-hole, used to introduce external airflow into the receiving tank 4111. For example, when a bottle cap is placed into the receiving tank 4111, the airflow generated by the air blowing component 42 enters the receiving tank 4111 through the air inlet, forming an airflow channel flowing from the air inlet towards the outlet 4121. The airflow acts on the surface of the bottle caps accumulated in the receiving tank 4111, pushing the bottle caps along the inclined direction of the bottom wall towards the outlet 4121. Because the air inlet is located at the end away from the outlet 4121, the airflow coverage can penetrate the entire receiving tank 4111, preventing bottle caps from accumulating in the inlet area. The external mounting of the air blowing component 42 keeps the internal structure of the equipment compact while avoiding direct contact between the airflow element and the recycled material.

[0052] This application further proposes that the recycling box 41 includes a first segment 411 and a second segment 412 connected to each other, the first segment 411 and the second segment 412 are arranged at an angle, the first segment 411 is provided with a receiving groove 4111, the second segment 412 is provided with a discharge channel communicating with the receiving groove 4111, and the outlet 4121 is located at the end of the second segment 412 away from the first segment 411.

[0053] The first segment 411 refers to the initial receiving area in the recycling box 41 for receiving bottle caps. This can be implemented using a groove structure with a flat or inclined bottom, used to receive bottle caps transferred from the capping mechanism 2. The second segment 412 refers to the extension forming a zigzag path with the first segment 411. This can be implemented using a tubular or groove structure connected to the first segment 411 at an acute, right, or obtuse angle, used to guide the bottle caps towards the outlet 4121. Angle setting refers to a non-linear transition between the two segments, which can be achieved through bending or segmented splicing, used to change the direction of movement of the bottle caps and utilize gravity to facilitate sliding. The discharge channel refers to the path connecting the receiving groove 4111 and the outlet 4121, which can be implemented using a smooth-walled guide groove or pipe structure to reduce frictional resistance during bottle cap movement. The outlet 4121 is the position where the bottle caps finally leave the recycling box 41. This can be located at the end of the second segment 412 and connected to an external collection container for directional discharge of the bottle caps.

[0054] For example, after the bottle cap is transferred to the receiving slot 4111 of the first segment 411, due to the angle formed between the second segment 412 and the first segment 411, the bottle cap slides along the discharge channel towards the end of the second segment 412 under the action of gravity. The outlet 4121 is located at the end of the second segment 412, ensuring that the bottle cap is continuously guided to the external collection area during the sliding process, without the need for manual cleaning. Through the layout of the zigzag path, the bottle cap forms a unidirectional flow inside the recycling box 41, effectively preventing blockage problems caused by accumulation.

[0055] This application further proposes that the fixing component 3 includes two drive clamps 31, which are located on opposite sides of the conveying space 11. The drive clamps 31 are used to abut against the bottle body, and the two drive clamps 31 are adapted to move closer to each other or further away from each other.

[0056] The drive clamping block 31 is an actuator that generates clamping force through mechanical transmission. Specifically, it can be achieved by using a cylinder or electric cylinder to drive the linear slide rail to move, and the clamping distance can be adjusted by controlling the stroke of the drive source. The two drive clamping blocks 31 move closer or further apart to each other in a synchronous and symmetrical manner in the horizontal direction. This can be achieved by using a double slider linkage mechanism or a gear and rack synchronization mechanism, and the symmetrical movement ensures that the clamping center coincides with the axis of the bottle.

[0057] For example, after the bottle enters the conveying space 11, the two drive clamps 31 move synchronously from both sides towards the center until they contact the outer wall of the bottle. The clamping surfaces form surface contact with the bottle to distribute pressure. At this time, the drive clamps 31 remain clamped to resist the rotational torque applied by the capping assembly 23. When it is necessary to release the bottle, the drive clamps 31 move in the opposite direction to the initial position to avoid interfering with the subsequent conveying of bottles. This clamping method adapts to bottles of different diameters by dynamically adjusting the clamping spacing, while using bidirectional clamping force to counteract the lateral torque generated during rotation, ensuring the stability of the bottle axis.

[0058] Understandably, this application can provide a stable bottle fixation effect during the automated capping process, preventing capping failure due to bottle displacement, while being compatible with different bottle sizes, ensuring the coordination of the fixed component 3 and the conveying mechanism during continuous operation of the production line.

[0059] This application further proposes a technical solution including a displacement track 12 of the body 1, and a cap-tightening actuator 2 comprising a displacement component 21, a lifting component 22, and a cap-tightening component 23. The displacement component 21 is movably mounted on the displacement track 12 to move closer to or further away from the conveying space 11. The lifting component 22 is mounted on the displacement component 21. The cap-tightening component 23 is located at the end of the lifting component 22, and is adjusted vertically by lifting drive, and has the functions of clamping and rotating bottle caps.

[0060] The displacement track 12 refers to the guide structure set on the machine body 1, which can be implemented using a linear guide or a slide rail structure, and is used to guide the displacement component 21 to move along a predetermined path. The displacement component 21 refers to the moving part installed on the displacement track 12, which can be implemented using a slider and a motor-driven lead screw mechanism, enabling the capping actuator 2 to adjust its position laterally to align with bottle caps at different locations. The lifting component 22 refers to the mechanism that drives the capping component 23 to move vertically, which can be implemented using a cylinder, hydraulic cylinder, or electric push rod, and is used to adjust the height of the capping gripper 233 to accommodate bottles of different sizes. The capping component 23 refers to the actuator that includes clamping and rotation functions, which can be implemented using a servo motor-driven gripper mechanism, and completes the capping operation by clamping the bottle cap and applying rotational torque.

[0061] For example, the displacement track 12 provides guidance for linear movement in the horizontal direction, and the displacement component 21 moves along the track to allow the capping actuator 2 to cover different areas of the conveying space 11. When the bottle conveying mechanism transports the bottle to the predetermined station, the displacement component 21 drives the lifting component 22 and the capping component 23 to move laterally to directly above the bottle cap. The lifting component 22 then drives the capping component 23 to descend to the bottle cap position, the gripper closes to hold the bottle cap, and the bottle cap is unscrewed by rotation. After the cap is screwed on, the lifting component 22 rises to reset, and the displacement component 21 returns to its initial position to await the next operation cycle. This scheme ensures precise positioning of the gripper through coordinated movement in the horizontal and vertical directions, avoiding clamping failure due to positional deviation.

[0062] In some specific embodiments, the displacement track 12 can be configured as a double track structure to enhance movement stability; the lifting component 22 can be driven by a servo motor in conjunction with a ball screw to achieve precise height control; the gripper of the capping component 23 can be equipped with a pressure sensor to monitor the clamping force in real time to avoid cap deformation.

[0063] Understandably, this application achieves automatic adjustment of the bottle cap clamping position and height, ensuring precise positioning of the gripper and stable clamping of the bottle cap, thus improving the reliability and consistency of the capping operation. This solution can adapt to bottles and caps of different sizes, meet the needs of continuous production, and reduce equipment failures or bottle damage caused by positioning deviations.

[0064] This application further proposes a cap screwing assembly 23 including a mounting frame 231 disposed on a lifting assembly 22, a plurality of cap screwing drive members 232 disposed at intervals on the mounting frame 231, a plurality of cap screwing claws 233 and a plurality of cap screwing drive members 232 being disposed in a one-to-one correspondence, the cap screwing claws 233 being adapted to grip or release the cap, and the cap screwing drive members 232 being adapted to drive the cap screwing claws 233 to rotate.

[0065] The mounting frame 231 is a structural component that supports multiple drive units. It can be implemented using a welded or bolted metal frame connection and is used to maintain the relative position of each actuator during lifting. The cap-screwing drive component 232 is an actuator that provides rotational power. It can be implemented using a servo motor and a reduction mechanism, and can independently control the rotation angle and torque output of each gripper. The cap-screwing gripper 233 is a clamping component that directly contacts the bottle cap. It can be implemented using pneumatic fingers or electromagnetic clamps, and completes the gripping and releasing of the bottle cap through opening and closing actions.

[0066] For example, the connection between the mounting frame 231 and the lifting assembly 22 forms a vertical motion transmission path. When the lifting assembly 22 moves the mounting frame 231 downward, multiple cap-screwing jaws 233 simultaneously approach the bottle cap position. Each cap-screwing drive unit 232 independently controls the rotation of its corresponding jaw. After the jaw closes and grips the bottle cap, the drive unit outputs a preset torque to make the jaw rotate the bottle cap. Since the drive units are spaced apart on the mounting frame 231, multiple bottle caps can be screwed on simultaneously, avoiding the waiting time of traditional single-point operations.

[0067] Understandably, this application achieves simultaneous screwing of multiple bottle caps, significantly improving processing efficiency compared to single-point operations. Independent drive control of each gripper eliminates clamping failures caused by cap positional deviations, ensuring clamping stability. Independent adjustment of rotation parameters allows the equipment to be compatible with bottle caps of different sizes, improving process adaptability. The modular layout also facilitates rapid replacement of faulty units, reducing equipment maintenance downtime.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be covered within the scope of the claims of the present invention.

Claims

1. A capping device, characterized in that, include: The machine body is provided with a conveying space for accommodating a bottle conveying mechanism. A capping actuator is provided on the machine body and is adapted to be close to or away from the conveying space to clamp and rotate the bottle cap on the bottle conveying mechanism; A fixing component is provided on the machine body and is used to fix the bottle body on the bottle conveying mechanism; A cap-recycling mechanism is provided on the machine body, and the cap-screwing actuator is adapted to transfer the unscrewed bottle cap to the cap-recycling mechanism.

2. The cap-screwing device according to claim 1, characterized in that, The cap-tightening and recycling mechanism includes a recycling box with a receiving slot, and the cap-tightening actuator is located above the opening of the receiving slot.

3. The cap-screwing device according to claim 2, characterized in that, One end of the recycling box has an outlet that connects to the receiving slot.

4. The cap-screwing device according to claim 3, characterized in that, The bottom wall of the receiving tank is set to gradually slope downwards towards the outlet.

5. The cap-screwing device according to claim 3, characterized in that, The capping and recycling mechanism also includes an air blowing component, which is located at the end of the recycling box away from the outlet and is adapted to blow air into the receiving tank.

6. The cap-screwing device according to claim 5, characterized in that, The recycling box has an air blowing hole at one end away from the outlet, which is connected to the receiving groove. The air blowing element is located on the outer wall of the recycling box and blows air toward the air blowing hole.

7. The cap-screwing device according to claim 3, characterized in that, The recycling box includes a first section and a second section connected to each other, the first section and the second section being arranged at an angle, the first section having the receiving groove, the second section having a discharge channel communicating with the receiving groove, and the outlet being located at the end of the second section away from the first section.

8. The cap-screwing device according to claim 1, characterized in that, The fixing component includes two drive clamps, which are located on opposite sides of the conveying space. The drive clamps are used to abut against the bottle body and are adapted to move closer to or further away from each other.

9. The cap-screwing device according to any one of claims 1 to 8, characterized in that, The machine body is provided with a displacement track, and the cap-tightening actuator includes: A displacement component, which is movably disposed on the displacement track to move closer to or further away from the conveying space; A lifting assembly, wherein the lifting assembly is disposed on the displacement assembly; A cap screwing assembly is provided on the lifting assembly, the lifting assembly is adapted to drive the cap screwing assembly to lift and lower, and the cap screwing assembly is adapted to clamp the bottle cap and rotate it.

10. The cap-screwing device according to claim 9, characterized in that, The cap screwing assembly includes: Mounting bracket, which is mounted on the lifting assembly; Multiple cap screwing drive components and multiple cap screwing assemblies are spaced apart on the mounting frame; Multiple cap-screwing jaws are provided, and each of the multiple cap-screwing jaws is correspondingly arranged with a multiple cap-screwing drive unit. The cap-screwing jaws are adapted to grip or release the bottle cap, and the cap-screwing drive unit is adapted to drive the cap-screwing jaws to rotate.

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