A high efficiency cap screwing device

Abstract

The application discloses a high-efficiency cap screwing device, which comprises a base, a cap distributing plate, a cap feeding guide rail and a cap screwing mechanism. The cap distributing plate is obliquely arranged in front of the base, the cap screwing mechanism is arranged in the base in a lifting mode, the cap feeding guide rail is obliquely arranged in front of the cap distributing plate and used for feeding a plurality of bottle caps to the cap distributing plate, and a plurality of cap distributing channels are arranged on the surface of the cap distributing plate. The inner wall of the base is provided with a swing guiding mechanism which is in sliding fit with the sidewall of the cap screwing mechanism. When the cap screwing mechanism is lifted, the cap screwing mechanism swings towards the cap distributing plate under the guiding action of the swing guiding mechanism, and when the cap screwing mechanism is lowered, the cap screwing mechanism is returned to the normal position under the guiding action of the swing guiding mechanism. The application realizes the synchronous feeding and arrangement of a plurality of bottle caps, and then realizes the one-time screwing of a plurality of containers, so that the work efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the technical field of capping equipment, and particularly to a high-efficiency capping device. Background Technology

[0002] Filling machines are the core equipment for filling and sealing (capping) bottles. Traditionally, rotary filling machines are the mainstream choice for this type of production. The core structure of a traditional rotary filling machine is a single turntable. All production processes, including filling, capping, and screwing, must be completed within the limited circumferential space of the turntable. This results in an extremely compact overall workstation layout. Furthermore, in traditional capping operations, the vibrating guide rail of the vibrating plate moves the caps one by one towards the capping station. Due to the high container conveying speed, relying solely on the capping station to deliver caps one by one to the capping station results in insufficient cap placement time. This easily leads to caps not being properly placed or even jamming, affecting the stability of the capping operation. Therefore, existing systems typically include an air blowing device at the end of the vibrating guide rail of the vibrating plate to blow the last cap into the capping station to solve the jamming problem. However, this method, using air blowing, easily blows dust onto the surface of the caps, causing re-contamination of the sterilized caps, affecting food safety, and increasing production costs. Summary of the Invention

[0003] The technical problem to be solved by the embodiments of the present invention is to provide a high-efficiency capping device that enables the synchronous conveying and arrangement of multiple bottle caps, thereby enabling the capping and capping of multiple containers at one time, which not only significantly improves production efficiency, but also reduces labor costs and labor intensity.

[0004] To achieve the above objectives, the present invention discloses a high-efficiency capping device, comprising a base, a cap-separating plate, a cap-feeding guide rail, and a capping mechanism. The cap-separating plate is inclinedly mounted in front of the base, and the capping mechanism is vertically and flexibly mounted in the base. The cap-feeding guide rail is inclinedly mounted in front of the cap-separating plate for feeding a number of bottle caps onto the cap-separating plate. The surface of the cap-separating plate is provided with multiple cap-separating channels, and the bottle caps slide into the cap-separating channels under their own weight.

[0005] The inner wall of the base is provided with a swing guide mechanism, which slides in cooperation with the side wall of the capping mechanism. When the capping mechanism rises, it swings towards the capping plate under the action of the swing guide mechanism. A top cap mechanism is provided below the capping plate to push the bottle cap in the capping channel onto the capping mechanism. When the capping mechanism falls, it returns to its original position under the action of the swing guide mechanism to screw the bottle cap onto the container.

[0006] Furthermore, the surface of the cap-separating plate is provided with a limiting hole communicating with the cap-separating channel. A limiting sleeve is slidably inserted into the limiting hole. The upper outer wall of the limiting sleeve is provided with a groove in the direction in which the bottle cap slides in. The limiting sleeve is driven to rise by a limiting drive device to intercept the bottle cap sliding on the cap-separating channel.

[0007] Furthermore, the top cover mechanism includes several top rods, which are disposed below the cover plate and are slidably inserted into the limiting sleeve. A top block is fixedly disposed on the upper part of the top rod. The top rod is driven by the top cover driving device to drive the top block to rise and push the bottle cap on the limiting sleeve into the capping mechanism.

[0008] Furthermore, a horizontal sliding module is provided on the cover plate, and a baffle plate is fixedly provided at the bottom of the horizontal sliding module. The surface of the baffle plate is provided with a plurality of square holes that communicate with the cover channel at intervals along the length direction.

[0009] A material distribution frame is inclinedly mounted on the front of the base, a guide plate is mounted on one side of the material distribution frame, and an inclined groove is provided on the guide plate. One end of the horizontal sliding module slides in cooperation with the inclined groove.

[0010] The top cover driving device drives the cover plate to rise, which in turn causes the horizontal sliding module to move the baffle plate horizontally under the guidance of the inclined groove, moving the square hole of the baffle plate above the cover channel.

[0011] The above settings can block and limit the bottle caps during the dispensing process, preventing them from accidentally falling or rolling during the rising process, while ensuring that the bottle caps are smoothly pushed into the capping mechanism.

[0012] Furthermore, a guide plate is provided between the cover plate and the cover feeding guide rail, and a plurality of guide blocks are equidistantly arranged on the surface of the guide plate, forming a guide channel that connects with the cover plate channel.

[0013] The front of the cap-separating plate is hinged to a flipping guide rail that connects to the end of the cap-feeding guide rail. The cap-feeding guide rail is used to feed several bottle caps onto the flipping guide rail. The flipping guide rail is driven by a flipping drive device to flip and feed several bottle caps onto the guide plate. The bottle caps are then guided into the cap-separating channel through the guide channel. This allows multiple bottle caps to be distributed to different positions simultaneously and also helps to organize the bottle caps to a certain extent, preparing them for the subsequent capping operation.

[0014] Furthermore, the capping mechanism includes a capping frame and several capping sleeves. The capping frame is vertically and slidably disposed within the base and slides in cooperation with the swing guide mechanism. The several capping sleeves are disposed below the capping frame. Several capping shafts are rotatably disposed on the capping frame. The lower part of the capping shafts is slidably inserted into the capping sleeves. A capping head is disposed at the bottom of the capping sleeve. The bottom surface of the capping head has a cavity for receiving bottle caps. The capping sleeves are rotated by a rotation drive device to screw the bottle caps onto the container.

[0015] Furthermore, the lower outer wall of the capping head is provided with an annular groove, and the inner wall of the cavity is provided with several through holes communicating with the annular groove along the circumference. A retaining ball is disposed within each through hole, and an elastic limiting ring is fitted inside the annular groove to confine the retaining ball within the through hole. The bottle cap is held in place in the cavity of the capping head by the retaining balls. Under the constraint of the elastic limiting ring, the retaining balls press firmly against the outer wall of the bottle cap, achieving a stable hold. This holding structure also has a certain degree of self-adaptability; even if the bottle cap surface has slight unevenness or dimensional deviations, the retaining balls can achieve effective holding of the bottle cap through their own fine-tuning within the through holes, further improving the versatility and reliability of the capping device.

[0016] Furthermore, the swing guide mechanism includes a first arc-shaped slide groove and a second arc-shaped slide groove disposed on the inner wall of the base, with the lower parts of the first arc-shaped slide groove and the second arc-shaped slide groove being vertically disposed. The upper part of the capping frame of the capping mechanism is provided with a first guide wheel that slides and engages with the first arc-shaped slide groove, and the lower part of the capping frame of the capping mechanism is provided with a second guide wheel that slides and engages with the second arc-shaped slide groove. A lifting drive device is hinged to the base, and its telescopic end is hinged to the capping frame of the capping mechanism.

[0017] Furthermore, a rotating shaft is rotatably mounted on the cover plate, and side plates are provided at both ends of the flip guide rail. The side plates are fixedly connected to the rotating shaft, and a flip drive device is hinged to the cover plate. Its telescopic end is hinged to the rotating shaft, and the flip drive device drives the rotating shaft to swing the flip guide rail up and down.

[0018] Furthermore, a first limiting rod is retractably provided in the middle of the cap feeding guide rail. The first limiting rod is driven by a first telescopic drive device to extend into the cap feeding guide rail and intercept the bottle cap in the middle of the cap feeding guide rail.

[0019] The end of the cap feeding guide rail is provided with a second limiting rod that can be extended into the cap feeding guide rail by a second telescopic drive device, in order to prevent the bottle cap on the cap feeding guide rail from sliding into the flipping guide rail.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] (1) The present invention uses a cap-separating plate to pre-position multiple bottle caps, and then the capping mechanism simultaneously completes the capping and screwing of multiple bottle caps. It is not necessary to complete the capping and screwing of each packaging bag in a short time when it enters the station. The process can be completed at the same time when the next batch of multiple packaging bags enter the station one by one. Thus, the pre-positioning time of bottle caps is increased many times, providing sufficient capping time to avoid jamming problems and shortening the waiting time required for containers, thereby improving the overall production efficiency. (2) In the present invention, the cap feeding guide, the flipping guide, and the cap-separating plate are all inclined, so that the bottle caps are transported under their own weight without any external force. This not only results in a fast response speed but also avoids contamination of the bottle caps. (3) The swing guide mechanism of the present invention adopts a specific design of the first arc-shaped slide groove and the second arc-shaped slide groove, which can accurately guide the capping frame to swing and rise and fall, so that several capping heads can transfer multiple bottle caps on the capping plate to the mouth of the container at one time and perform capping work simultaneously. This can reduce the time that the container stays and waits each time, avoid the time waste caused by capping one by one, greatly shorten the overall capping time, significantly improve production efficiency, and reduce labor costs and labor intensity. (4) The elastic limiting ring on the capping head of the present invention can effectively limit several holding balls in the through hole, not only preventing the holding balls from falling off, but also allowing the holding balls to better hold the bottle cap in the cavity under the elastic action of the elastic limiting ring. This also makes the capping operation more flexible and can adapt to bottle caps of different sizes and shapes, improving the versatility and applicability of the capping machine. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention (I).

[0023] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure II ;

[0024] Figure 3 This is a schematic diagram of the structure of the flip guide rail;

[0025] Figure 4 This is a structural schematic diagram of the cover plate;

[0026] Figure 5 This is a schematic diagram of the limiting sleeve.

[0027] Figure 6 This is a schematic diagram of the top cover mechanism;

[0028] Figure 7 This is a structural sectional view of the top cover mechanism;

[0029] Figure 8 This is a schematic diagram of the capping mechanism;

[0030] Figure 9 This is a schematic diagram of the base structure;

[0031] Figure 10 This is a schematic diagram of the capping head structure;

[0032] Figure 11 This is a structural cross-sectional view of the capping mechanism. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0034] Reference Figure 1 As shown, a high-efficiency capping device includes a base 1, a cap-separating plate 2, a cap-feeding guide rail 3, and a capping mechanism 4. The cap-separating plate 2 is inclinedly arranged in front of the base 1, the cap-feeding guide rail 3 is inclinedly mounted in front of the cap-separating plate 2, and the capping mechanism 4 is vertically and flexibly arranged in the base 1.

[0035] Reference Figure 1 , Figure 4 As shown, specifically, a material distribution frame 20 is mounted in front of the base 1. A pair of guide rods are respectively provided on both sides of the material distribution frame 20. The two sides of the cover plate 2 have guide bushings that cooperate with the guide rods for guidance. A top cover drive device 201 is fixedly installed on both sides of the top of the material distribution frame 20. In this embodiment, a cylinder is preferably used. Its telescopic end is fixedly connected to the cover plate 2, so that the cover plate 2 is driven to slide up and down along the guide rods by the top cover drive device 201.

[0036] Reference Figure 3 , Figure 4 As shown, a guide plate 5 is further installed between the cap-separating plate 2 and the cap-feeding guide rail 3. Fixed rods are fixed between the two ends of the guide plate 5 and the top of the material-separating frame 20. Several guide blocks 51 are equidistantly arranged on the surface of the guide plate 5, so that several guide channels 52 are formed between the several guide blocks 51. Multiple cap-separating channels 21 are provided on the surface of the cap-separating plate 2 and are connected to the guide channels 52. Several bottle caps slide into the cap-separating channels 21 under their own weight.

[0037] Traditional filling machines typically use a one-by-one capping method at the capping station. This means that containers on the turntable need to stop and wait for the cap to be applied before the screw cap station can simultaneously screw caps onto multiple containers. However, the waiting time for containers at each capping station on the turntable wastes time in the overall production process. For example, if it takes 1-2 seconds to apply a cap, then applying caps to multiple containers and then screwing them onto the turntable can take several seconds, resulting in low production efficiency. If the container conveying speed is increased, the cap conveying speed may not be able to keep up with the container conveying speed, leading to situations where the caps are not properly applied.

[0038] To solve the above problems, a flipping guide rail 6 is hinged to the front of the cap-separating plate 2 and connected to the end of the cap-feeding guide rail 3. In this embodiment, the cross-section of the flipping guide rail 6 is "C" shaped. A pair of mounting plates 27 are fixedly installed at the front end of the guide plate 5. A rotating shaft 61 is rotatably installed on the mounting plate 27 of the guide plate 5. Side plates 62 are provided at both ends of the flipping guide rail 6. The two side plates 62 are fixedly connected to the rotating shaft 61 respectively. A flipping drive device 63 is hinged to the guide plate 5. In this embodiment, the flipping drive device is preferably a cylinder, and its extension end is hinged to the rotating shaft 61. The cap-feeding guide rail 3 is used to feed several bottle caps into the flipping guide rail 6, thereby driving the rotating shaft 61 to swing the flipping guide rail 6 up and down through the flipping drive device 63, and feeding several bottle caps into the cap-separating channel 21.

[0039] In addition, the side plate 62 near the cap feeding guide 3 is only connected to the end edge of the flipping guide, so that one end of the cap feeding guide is open and the other end is closed, ensuring that the cap feeding guide can enter the flipping guide normally and preventing the bottle cap in the flipping guide from sliding out from the other end.

[0040] Specifically, in this embodiment, the length of one mounting plate 27 is less than the length of the other mounting plate 27, so that after the rotating shaft 61 is installed between the mounting plates 27, the rotating shaft 61 is in an inclined state. At the same time, in order to ensure that the flipping guide rail 6 is aligned with the front end of the guide plate 5 after flipping upward, the length of one side plate 62 is also less than the length of the other side plate 62. When the flipping drive device 63 drives the rotating shaft to rotate, the flipping guide rail 6 will swing up and down at a specific angle, so that the flipping guide rail 6 can better cooperate with the guide plate 5 and the cover feeding guide rail 3 during the swinging process.

[0041] Furthermore, a stop plate 64 is fixedly installed on the mounting plate 27 away from the cover feeding guide rail 6. A buffer block 641 is provided on the end of the stop plate so that when the flipping guide rail 6 is reset and connected with the cover feeding guide rail 3, the end of the flipping guide rail 6 and the stop plate 64 are in a stop-fitting position to ensure accurate alignment between the flipping guide rail 6 and the cover feeding guide rail 3. At the same time, the buffer block can reduce the impact force generated during collision, protect the flipping guide rail and the stop plate from damage, and extend their service life.

[0042] A first limiting rod 31 is telescopically provided on the middle part of the lid feeding guide rail 3, and a first telescopic drive device is fixedly installed on the side wall of the lid feeding guide rail 3. In this embodiment, the first telescopic drive device is preferably a cylinder, and its telescopic end is fixedly connected to the first limiting rod 31.

[0043] A second limiting rod 32 is telescopically provided on the end of the lid feeding guide rail 3, and a second telescopic drive device is fixedly installed below the bottom surface of the lid feeding guide rail 3. In this embodiment, the second telescopic drive device is preferably a cylinder, and its telescopic end is fixedly connected to the second limiting rod 32.

[0044] A third limiting rod is telescopically provided on the first end of the lid feeding guide rail 3, and a third telescopic drive device is fixedly installed below the bottom surface of the lid feeding guide rail 3. In this embodiment, the third telescopic drive device is preferably a cylinder, and its telescopic end is fixedly connected to the third limiting rod.

[0045] Furthermore, the first end of the cap feeding guide rail 3 is connected to the discharge port of the cap feeding device. The cap feeding device feeds the bottle caps one by one into the cap feeding guide rail 3. Under their own weight, the bottle caps in the cap feeding guide rail 3 slide into the flipping guide rail 6. In this embodiment, the length of the flipping guide rail 6 can accommodate five bottle caps at a time. After the bottle caps are all gathered in the flipping guide rail 6, the second telescopic drive device drives the second limiting rod 32 to extend into the cap feeding guide rail 3, thereby intercepting the bottle caps on the cap feeding guide rail 3 from continuing to slide into the flipping guide rail 6, preventing the bottle caps from sliding into the flipping guide rail 6 too early or too many times, and ensuring the timely delivery of bottle caps. In this embodiment, the distance between adjacent limit rods 31, 32, and 3 is equal to the length of the flipping guide rail 6. Therefore, after the second limit rod 32 intercepts five bottle caps, the first telescopic drive device drives the first limit rod 31 to extend into the cap feeding guide rail 3 to continue intercepting the bottle caps in the cap feeding guide rail 3. This allows for flexible control of the forward speed and quantity of bottle caps according to the actual production rhythm. Finally, the third telescopic drive device drives the third limit rod to extend into the cap feeding guide rail 3, causing the cap feeding device to stop feeding bottle caps onto the cap feeding guide rail 3.

[0046] Furthermore, the rotating shaft 61 is driven by the flipping drive device 63 to swing the flipping guide rail 6 upward until it abuts against the guide plate 5. This causes the bottle caps in the flipping guide rail 6 to slide into the guide channel 52 under their own weight, and then guide each bottle cap into the corresponding capping channel 21. This simultaneously distributes multiple bottle caps to different positions, facilitating subsequent capping and screwing operations. The flipping drive device 63 then drives the flipping guide rail 6 downward to continue connecting with the cap feeding guide rail 3, and the second telescopic drive... The device drives the second limiting rod 32 to retract, causing the bottle cap between the first limiting rod 31 and the second limiting rod 32 to slide into the flipping guide rail 6 and continue to feed the bottle cap into the cap dispensing channel 21. Subsequently, the second limiting rod 32 continues to extend into the cap feeding guide rail 3, while the first telescopic drive device drives the first limiting rod 31 to retract, causing the bottle cap between the third limiting rod and the first limiting rod 31 to slide into the space between the first limiting rod 31 and the second limiting rod 32. This cycle repeats, thereby greatly improving the conveying efficiency of the bottle cap and ensuring the stability of the bottle cap during the conveying process.

[0047] With the above-described configuration, the inclined arrangement between the cap feeding guide and the tilting guide allows the bottle caps to be transported by their own weight, eliminating the need for any external force. This not only reduces energy consumption and waste but also avoids potential cap damage caused by external forces, improving cap integrity and preventing contamination. Furthermore, gravity transport offers rapid response, quickly delivering caps to designated positions. The tilting guide's up-and-down tilting mechanism enables simultaneous transport of multiple caps, providing sufficient time for the tilting guide to feed caps as multiple containers are transported to the capping mechanism from the turntable. Compared to traditional one-by-one transport, this invention is not only more efficient but also further improves container transport efficiency, shortening the waiting time required for traditional capping and avoiding time waste caused by untimely cap delivery in traditional methods.

[0048] Reference Figure 4 , Figure 5 As shown, further, the surface of the capping plate 2 is provided with a limiting hole 22 communicating with the capping channel 21. A limiting sleeve 23 is slidably inserted into the limiting hole 22. Limiting drive devices 232 are respectively provided at both ends of the bottom of the capping plate 2. In this embodiment, the limiting drive device 232 is preferably a cylinder. A limiting plate 233 is fixedly provided between its telescopic ends. The limiting sleeve 23 is fixedly provided on the limiting plate. The upper outer wall of the limiting sleeve 23 is provided with a groove 231 in the direction of the bottle cap sliding in. The limiting sleeve 23 is driven to rise by the limiting drive device 232, thereby intercepting the bottle cap in the capping channel 21 from continuing to slide down through the inner wall of the limiting sleeve 23, so that the subsequent capping mechanism can take away the bottle cap.

[0049] Combination Figure 6 , Figure 7 As shown, further, a top cover mechanism 24 is provided below the cover plate 2. The top cover mechanism 24 includes several push rods 241, which are arranged below the cover plate 2. A pin plate 243 is mounted below the cover plate 2. The lower part of the push rod 241 is fixedly mounted on the pin plate 243 and slidably inserted into the limiting sleeve 23. A top block 242 is fixedly mounted on the upper part of the push rod 241. The outer diameter of the top block 242 is approximately the same as the inner diameter of the limiting sleeve 23. The outer wall of the top block 242 has an arc-shaped flange that slides with the slot 231 of the limiting sleeve 23. The top cover driving device 201 drives the cover plate 2 to rise, so that the top block 242 on the push rod 241 lifts the bottle cap in the cover channel 21.

[0050] Furthermore, when the bottle cap is inserted into the capping mechanism, insufficient clamping force may cause the bottle cap to fall off and get stuck in the limiting sleeve 23 or the limiting hole 22, thus affecting the normal conveying of subsequent bottle caps. Therefore, the top block 242 can continue to rise under the action of the top cap driving device 201, generating an upward pushing force on the bottle cap stuck there, pushing the stuck bottle cap out of the limiting sleeve 23 or the limiting hole 22, so that the bottle cap slides out of the cap-separating channel under its own weight, restoring the unobstructed passage, ensuring that subsequent bottle caps can be normally conveyed to the cap-separating channel 21, reducing the equipment downtime caused by bottle cap jamming, and improving production efficiency.

[0051] Preferably, a bolt head 244 is fixedly connected to the limiting plate 233, the bolt head 244 is fixedly connected to the limiting sleeve 23, and the bolt head 244 has a shaft hole that is open at the top and bottom in the middle. A pin sleeve 245 is provided inside the limiting sleeve 23, and the pin sleeve 245 is threadedly connected to the shaft hole. The push rod 241 passes through the pin sleeve 245. When the push rod 241 descends, the push block 242 abuts against the pin sleeve 245.

[0052] Reference Figure 3 , Figure 4 As shown, a horizontal sliding module 25 is provided on the cap-separating plate 2. A baffle plate 26 is fixedly provided at the bottom of the horizontal sliding module 25, thereby preventing bottle caps from falling out of the cap-separating channel 21. When the height between the baffle plate 26 and the cap-separating channel 21 is less than the outer diameter of the bottle cap, the bottle cap can be prevented from flipping during the sliding process, ensuring the stability of the bottle cap conveying. A guide plate 202 is provided on one side of the material distribution frame 20. An inclined groove 203 is provided on the guide plate 202. One end of the horizontal sliding module 25 slides in cooperation with the inclined groove 203.

[0053] Specifically, in this embodiment, the horizontal sliding module 25 includes a pair of crossbars 251. The surface of the cover plate 2 is provided with fixed seats on both sides of the cover plate 26. The ends of the crossbars 251 are slidably engaged with the fixed seats, and rollers 252 that are rotatably engaged with the inclined groove 203 are rotatably provided between the ends of the crossbars 251. The surface of the cover plate 26 is provided with a plurality of square holes 261 that communicate with the cover channel 21 along the length direction. When the top cover driving device 201 drives the cover plate 2 to rise, the rollers 252 between the crossbars 251 rise along the inclined groove 203, so that the horizontal sliding module 25 drives the cover plate 26 to move horizontally under the action of the inclined groove 203, and moves the square holes 261 on the cover plate 26 to the top of the cover channel 21, so as to facilitate the subsequent insertion of the bottle cap into the capping mechanism 4.

[0054] Reference Figure 8 , Figure 11 As shown, further, the inner wall of the base 1 is provided with a swing guide mechanism 8, which slides in cooperation with the side wall of the capping mechanism 4. The capping mechanism 4 includes a capping frame 41 and several capping sleeves 42. The capping frame 41 is vertically and slidably disposed in the base 1 and slides in cooperation with the swing guide mechanism 8. Several capping sleeves 42 are disposed below the capping frame 41. Several capping shafts 43 are rotatably disposed on the capping frame 41. The capping sleeves 42 are slidably inserted into the capping shafts 43. A capping head 421 is provided at the bottom of the capping sleeve 42. The bottom surface of the capping head 421 has a cavity for receiving bottle caps, and the top of the capping frame 41 is fixed. A rotary drive device 44 is installed. In this embodiment, the rotary drive device is preferably a servo motor. Its output shaft is fixedly connected to the capping shaft 43 through a linkage. Thus, the rotary drive device 44 drives the capping sleeve 42 to rotate and place the bottle cap on the container. A pair of horizontal shafts are mounted on the top of the capping frame 41. A pair of lifting drive devices are hinged on the top of the base. In this embodiment, the lifting drive device is preferably a cylinder. Its telescopic end is rotatably connected to the horizontal shaft through a joint bearing. The lifting drive device drives the capping frame to lift and lower several capping sleeves 42, thereby causing the capping frame of the capping mechanism 4 to swing under the action of the swing guide mechanism 8.

[0055] Combination Figure 9 As shown, in this embodiment, the swing guide mechanism 8 includes a first arc-shaped slide groove 81 and a second arc-shaped slide groove 82 disposed on the two inner sides of the base 1. The outer arc of the first arc-shaped slide groove 81 is disposed towards the front end of the base 1, and the outer arc of the second arc-shaped slide groove 82 is disposed towards the rear end of the base 1. The lower parts of the first arc-shaped slide groove 81 and the second arc-shaped slide groove 82 are vertically disposed. The upper part of the capping frame 41 is provided with a first guide wheel that slides with the first arc-shaped slide groove 81, and the lower part of the capping frame 41 is provided with a second guide wheel that slides with the second arc-shaped slide groove 82.

[0056] In actual operation, the sliding of the first guide wheel 411 in the first arc-shaped slide groove 81 and the sliding of the second guide wheel in the second arc-shaped slide groove 82 are very smooth, which can effectively reduce friction and improve the efficiency of the entire capping process. The specific settings of the first arc-shaped slide groove and the second arc-shaped slide groove make the swing and return actions of the capping frame 41 precise and controllable.

[0057] Reference Figure 1 , Figure 8 , Figure 9 As shown, when the capping frame 41 rises, the first guide wheel 411 slides upward along the first arc-shaped groove 81. Because the outer arc of the first arc-shaped groove 81 is set towards the front end of the base 1, it guides the lower part of the capping frame 41 to swing towards the cap-separating plate 2. At this time, the sliding of the second guide wheel 412 in the second arc-shaped groove 82 also plays an auxiliary stabilizing role, ensuring that the capping frame 41 swings smoothly, allowing the capping sleeves 42 to accurately adjust their angles to be parallel to the angle of the cap-separating plate 2, thereby smoothly holding the bottle caps in the cap-separating channel 21.

[0058] When the capping frame 41 descends, the first guide wheel 411 slides down along the first arc-shaped slide groove 81, and the second guide wheel 412 slides down along the second arc-shaped slide groove 82. Since the lower parts of the first arc-shaped slide groove 81 and the second arc-shaped slide groove 82 are vertically arranged, the capping frame 41 can accurately return to its original position under guidance, so that several capping sleeves 42 are parallel to the mouth of the container, providing a reliable guarantee for accurately screwing the bottle cap onto the container.

[0059] Furthermore, the capping mechanism in this embodiment is not limited to using a swinging method to pick up caps. In another embodiment, the cap separating plate can be horizontally arranged, and a pusher plate is provided on the cap separating plate. After several bottle caps are fed onto the guide plate by the flipping guide rail, several bottle caps slide into the corresponding cap separating channels through the guide channel. Then, the pusher plate is driven by a cylinder to push the bottle caps to the designated position. The capping mechanism can be horizontally sliding, and the capping frame is driven by a cylinder to move horizontally above the bottle caps. Then, the capping mechanism pushes the bottle caps into the capping head of the capping sleeve. This avoids the space limitation problem that may be caused by the swinging method, and is especially suitable for some production scenarios with strict space layout requirements.

[0060] Reference Figure 10As shown, further, the lower outer wall of the capping head 421 is provided with an annular groove 423, and the inner wall of the cavity 422 is provided with a plurality of through holes 424 communicating with the annular groove 423 along the circumferential direction. A retaining ball 425 is provided in the through hole 424. In this embodiment, the inner diameter of the end of the through hole 424 near the cavity is smaller than the inner diameter of the other end, so as to prevent the retaining ball 425 from falling out of the cavity 422. An elastic limiting ring is sleeved in the annular groove 423. In this embodiment, the elastic limiting ring is preferably made of rubber. The elastic limiting ring is used to retain the ball 425. The ball bearing 425 is enclosed in the annular groove 423, which is used to confine the ball bearing 425 within the through hole 424 to prevent the ball bearing 425 from falling out. When the bottle cap enters the cavity 422 of the capping head 421, the ball bearing 425 moves towards the annular groove 423 under the external force of the bottle cap, overcoming the elastic force of the elastic limiting ring. This allows the bottle cap to smoothly enter the cavity 422. After the bottle cap is fully inside the cavity 422, the ball bearing is locked in place by the elastic force of the elastic limiting ring.

[0061] During the capping process, the holding ball 425 is in close contact with the cap, ensuring that the capping head 421 can stably rotate the cap and screw it onto the container. Due to the rolling characteristics of the holding ball 425, friction between it and the cap is reduced during capping, avoiding damage to the cap surface and ensuring the appearance quality of the cap. At the same time, this holding method also makes the capping operation more flexible, adaptable to caps of different sizes and shapes, improving the versatility and applicability of the capping machine. After capping is completed, the capping head 421 rises, the cap disengages from the cavity 422, and the holding ball 425 returns to its initial position under the action of the elastic limit ring, preparing for the next capping operation, thus enabling the capping of multiple containers.

[0062] With the above setup, multiple bottle caps are pre-positioned using the cap plate 2, allowing the capping mechanism 4 to enable multiple capping sleeves 42 to simultaneously complete the capping and screwing operations of multiple bottle caps. This eliminates the need to complete capping and screwing operations quickly for each container entering the station; the process can be completed uniformly as the next batch of containers enters the station one by one. This significantly increases the pre-positioning time of the bottle caps, providing ample time to avoid jamming. It solves the connection time and error between traditional capping and screwing operations, preventing production stoppages due to untimely cap supply, ensuring the continuity and efficiency of capping and screwing operations by the capping sleeves 42, greatly improving capping efficiency, and enabling the production line to operate at a faster speed, thereby shortening the waiting time for containers.

[0063] In addition, the elastic limiting ring and several retaining balls 425 have a certain degree of self-adaptability. Even if there are slight unevenness or dimensional deviations on the surface of the bottle cap, the retaining balls can effectively retain the bottle cap by making fine adjustments within the through hole under the elastic action of the elastic limiting ring, which further improves the versatility and reliability of the capping device.

[0064] Reference Figure 11 As shown, further, a strip groove is provided on the outer wall of the capping shaft 43, and a pin hole 462 is provided on the outer wall of the capping sleeve. A pin is inserted into the pin hole 462 and slides in cooperation with the strip groove of the capping shaft 43. This not only ensures that the capping shaft 43 and the capping sleeve 42 can move relative to each other, but also ensures that the two can rotate synchronously during the capping process, transmitting a stable torque, making the capping operation more reliable and efficient. In addition, a receiving groove 431 is provided at the bottom of the capping shaft 43, and an elastic component 432 is provided between the receiving groove 431 and the capping sleeve 42. In this embodiment, the elastic component is preferably a spring, so that there is a certain elastic buffer between the capping shaft 43 and the capping sleeve 42. During the capping process, when the capping head 421 contacts the bottle cap or container, the spring acts as a buffer to prevent damage to the bottle cap or machine parts due to rigid collisions between the capping head 421 and the bottle cap or container. As the capping head 421 continues to press down and rotate for the capping operation, the spring will extend and retract accordingly based on the actual capping situation. When the bottle cap is too tight or the bottle cap is slightly misaligned, the spring can retract to adjust the pressure of the capping head 421 on the bottle cap, ensuring a smooth capping process. Simultaneously, after capping is complete, the capping head 421 rises, and the spring returns to its initial state, adjusting the relative position of the capping shaft 43 and the capping sleeve back to their original positions, providing stable working conditions for the next capping operation.

[0065] Furthermore, in this embodiment, the container is preferably a stand-up pouch. In the entire production line, the capping machine usually needs to be used in conjunction with equipment such as a filling machine and a labeling machine. Since stand-up pouches are usually conveyed by a turntable, in this embodiment, the plurality of limiting holes 22, the plurality of limiting sleeves 23, the plurality of top cap mechanisms 24, and the plurality of capping sleeves 42 are arranged in an arc shape so that they can better connect with the turntable, which can meet the requirement of capping multiple containers at the same time, thereby improving the automation level and production efficiency of the entire production line.

[0066] Reference Figures 1-11 As shown, the specific working process is as follows:

[0067] First, several bottle caps are fed onto the flipping guide rail 6 via the cap feeding guide rail 3. The flipping drive device 63 drives the flipping guide rail 6 to swing upward, conveying the flipping guide rail 6 to the guide plate 5. Under its own weight, each bottle cap in the flipping guide rail 6 slides into its respective guide channel 52. The bottle cap is then guided into the corresponding cap separating channel 21 through the guide channel 52. At this time, the limiting drive device 232 drives the limiting sleeve 23 to extend out of the limiting hole 22 of the cap separating plate 2, thereby intercepting the bottle cap in the cap separating channel 21. At the same time, the top block 242 supports the bottle cap, keeping it in the designated position, waiting for the capping mechanism 4 to take the cap.

[0068] Next, the lifting drive device 11 drives the capping frame 41 to lift several capping sleeves 42, and under the guidance of the first arc-shaped slide groove 81 and the second arc-shaped slide groove 82, the capping sleeves 42 are adjusted to be parallel to the capping plate 2. Then, the top cap drive device 201 drives the capping plate 2 to lift the ejector plate 243, so that the top block 242 pushes the bottle cap along the inner wall of the limiting sleeve 23 under the action of the top rod 241, until the bottle cap is pushed into the cavity 422 of the capping head 421. Several holding balls 425 on the capping head 421 hold the bottle cap in the cavity 422 under the elastic action of the elastic limiting ring.

[0069] Finally, the lifting drive device 11 drives the capping frame 41 to lower several capping sleeves 42, and under the guidance of the first arc-shaped slide 81 and the second arc-shaped slide 82, the several capping sleeves 42 return to the center and are parallel to the mouth of the container. At the same time, the rotation drive device 44 drives the capping sleeves 42 to rotate the capping head 421, and screws the bottle cap onto the container.

[0070] Of course, the above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They cannot be used to limit the scope of protection of the present invention. All modifications made according to the spirit of the main technical solution of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency capping device, characterized in that, The system includes a base (1), a cap-separating plate (2), a cap-feeding guide rail (3), and a cap-screwing mechanism (4). The cap-separating plate (2) is inclinedly mounted in front of the base (1). The cap-screwing mechanism (4) is vertically mounted in the base (1). The cap-feeding guide rail (3) is inclinedly mounted in front of the cap-separating plate (2). A flipping guide rail (6) is hinged to the front of the cap-separating plate (2) and connected to the end of the cap-feeding guide rail (3). The cap-feeding guide rail (3) is used to feed several bottle caps onto the flipping guide rail (6). The flipping guide rail (6) is driven to flip by a flipping drive device to feed several bottle caps onto the cap-separating plate (2). The surface of the cap-separating plate (2) is provided with multiple cap-separating channels (21). The inner wall of the base (1) is provided with a swing guide mechanism (8), which slides with the side wall of the capping mechanism (4). When the capping mechanism (4) rises, it swings towards the split cap plate (2) under the action of the swing guide mechanism (8). A top cap mechanism (24) is provided below the split cap plate (2) to push the bottle cap in the split cap channel (21) onto the capping mechanism (4). When the capping mechanism (4) falls, it returns to the center under the action of the swing guide mechanism (8) to screw the bottle cap onto the container. A horizontal sliding module (25) is provided on the cover plate (2), and a baffle plate (26) is fixedly provided at the bottom of the horizontal sliding module (25). The surface of the baffle plate (26) is provided with a plurality of square holes (261) that communicate with the cover channel (21) along the length direction. A material distribution frame (20) is inclinedly mounted on the front of the base (1). A guide plate (202) is mounted on one side of the material distribution frame (20). An inclined groove (203) is provided on the guide plate (202). One end of the horizontal sliding module (25) is slidably engaged with the inclined groove (203).

2. The high-efficiency capping device according to claim 1, characterized in that, The surface of the cap plate (2) is provided with a limiting hole (22) communicating with the cap channel (21). A limiting sleeve (23) is slidably inserted in the limiting hole (22). The upper outer wall of the limiting sleeve (23) is provided with a groove (231) in the direction of the bottle cap sliding in. The limiting sleeve (23) is driven to rise by the limiting drive device (232) to intercept the bottle cap sliding on the cap channel (21).

3. The high-efficiency capping device according to claim 2, characterized in that, The top cover mechanism (24) includes several top rods (241), which are located below the cover plate (2) and are slidably inserted into the limiting sleeve (23). A top block (242) is fixedly provided on the upper part of the top rod (241). The top rod (241) is driven by the top cover driving device (201) to drive the top block (242) to rise and push the bottle cap on the limiting sleeve (23) into the capping mechanism (4).

4. The high-efficiency capping device according to claim 1, characterized in that, The top cover drive device (201) drives the sub-cover plate (2) to lift the horizontal sliding module (25), thereby causing the horizontal sliding module (25) to move the baffle plate (26) horizontally under the guidance of the inclined groove (203), and move the square hole (261) of the baffle plate (26) above the sub-cover channel (21).

5. The high-efficiency capping device according to claim 1, characterized in that, A guide plate (5) is installed between the cap-separating plate (2) and the cap-feeding guide rail (3). Several guide blocks (51) are evenly spaced on the surface of the guide plate (5). The guide blocks (51) form a guide channel (52) that connects with the cap-separating channel (21). The flipping drive device drives the flipping guide rail (6) to flip and feed several bottle caps onto the guide plate (5). The bottle caps are then guided into the cap-separating channel (21) through the guide channel (52).

6. The high-efficiency capping device according to claim 1, characterized in that, The capping mechanism (4) includes a capping frame (41) and several capping sleeves (42). The capping frame (41) is vertically and vertically disposed in the base (1) and slides in cooperation with the swing guide mechanism (8). The several capping sleeves (42) are disposed below the capping frame (41). Several capping shafts (43) are rotatably disposed on the capping frame (41). The lower part of the capping shafts (43) is slidably inserted into the capping sleeves (42). The bottom of the capping sleeves (42) is provided with a capping head (421). The bottom surface of the capping head (421) has a cavity (422) for accommodating the bottle cap. The capping sleeves (42) are rotated by a rotation drive device (44) to place the bottle cap on the container.

7. A high-efficiency capping device according to claim 6, characterized in that, The lower outer wall of the capping head (421) is provided with an annular groove (423). The inner wall of the cavity (422) is provided with a plurality of through holes (424) communicating with the annular groove (423) along the circumferential direction. A retaining ball (425) is provided in the through hole (424), and an elastic limiting ring is provided in the annular groove (423) to limit the retaining ball (425) in the through hole (424), so that the retaining ball (425) holds the bottle cap in the cavity (422) of the capping head (421).

8. A high-efficiency capping device according to claim 1, characterized in that, The swing guide mechanism (8) includes a first arc-shaped slide groove (81) and a second arc-shaped slide groove (82) disposed on the inner wall of the base (1) at the top and bottom, respectively. The lower parts of the first arc-shaped slide groove (81) and the second arc-shaped slide groove (82) are both vertically disposed. The upper part of the capping mechanism (4) is provided with a first guide wheel that slides with the first arc-shaped slide groove (81), and the lower part of the capping mechanism (4) is provided with a second guide wheel that slides with the second arc-shaped slide groove (82). A lifting drive device (11) is hinged on the base (1). The telescopic end of the lifting drive device (11) is hinged to the capping mechanism (4). The capping mechanism (4) is driven to rise and fall by the lifting drive device (11) and swings under the guidance of the first arc-shaped slide groove (81) and the second arc-shaped slide groove (82).

9. A high-efficiency capping device according to claim 5, characterized in that, A rotating shaft (61) is rotatably mounted on the capping plate (2). Side plates (62) are provided at both ends of the flipping guide rail (6). The side plates (62) are fixedly connected to the rotating shaft (61). A flipping drive device (63) is hinged on the capping plate (2). The telescopic end of the flipping drive device (63) is hinged to the rotating shaft (61). The rotating shaft (61) is driven by the flipping drive device (63) to flip the flipping guide rail (6) and send several bottle caps into the capping channel (21).

10. A high-efficiency capping device according to claim 9, characterized in that, The cap feeding guide (3) is provided with a first limiting rod (31) in the middle. The first limiting rod (31) is driven by the first telescopic driving device to extend into the cap feeding guide (3) to intercept the bottle cap in the middle of the cap feeding guide (3). The end of the cap feeding guide (3) is provided with a second limiting rod (32) that can be extended and retracted. The second limiting rod (32) is driven by the second telescopic drive device to extend into the cap feeding guide (3) to intercept the bottle cap on the cap feeding guide (3) from sliding into the flipping guide (6).

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