A finishing device for bottle cap production

Abstract

The utility model relates to a kind of arrangement device for bottle cap production. Including support, support base plate and rotating motor are fixedly connected on it, and feeding carousel is installed on rotating motor;It further includes round outer cover structure and the screening subassembly installed at the outer cover discharge port;Reverse blow recovery subassembly is docked at the blanking opening below the screening subassembly;Slide way subassembly is docked at the side end discharge port of screening subassembly;Screening subassembly includes export bottom plate structure and the adjustable railing subassembly and guide plate structure oppositely arranged and with adjustable spacing;Ejection groove is opened on export bottom plate structure;Slide way subassembly includes adjusting mounting seat, two groups of limiting bars and slide way backing plate, gap is left between two groups of limiting bars and is enclosed into slide way with slide way backing plate, and distance adjusting mechanism is arranged between two groups of limiting bars.The utility model has the advantages of simplifying equipment structure, improving the adaptability of different specifications bottle cap, reducing production interruption time, enhancing production continuity and equipment versatility.

Description

Technical Field

[0001] This utility model belongs to the field of injection molding equipment technology, and in particular relates to a finishing device for bottle cap production. Background Technology

[0002] Bottle caps play a crucial role in the container sealing process. Through a precise fit with the bottle opening, they form a multi-layered sealing structure, effectively preventing leakage of contents and the intrusion of external contaminants. When the cap is tightened, the bottle opening extends into the cap and contacts the sealing gasket. The groove on the inside of the bottle opening tightly engages with the threads of the cap, generating continuous pressure to ensure the reliability of the sealing surface, thereby maintaining stable product quality.

[0003] On automated bottle cap production lines, scattered bottle caps must be aligned to a uniform orientation by a sorting device before being accurately conveyed to the capping machine for assembly. Currently, the commonly used cap sorting devices mainly rely on a vibratory feeder to drive the bottle caps, and use a dedicated attitude adjustment slide to achieve orientation correction.

[0004] These devices exhibit significant shortcomings in practical applications: their complex overall design, containing numerous precision components, leads to high maintenance difficulty; the attitude adjustment slides require customized processing for specific bottle cap sizes, with geometric parameters strictly corresponding to cap specifications, making them unsuitable for caps of different diameters or heights; when the production line switches cap specifications, the entire slide assembly must be disassembled and replaced, resulting in prolonged equipment downtime, production interruptions, and a significant reduction in overall equipment utilization. These deficiencies not only increase production costs but also hinder the flexible upgrading of production lines, failing to meet the urgent needs of the modern packaging industry for efficient and versatile finishing equipment. Therefore, there is an urgent need to design a finishing device for bottle cap production to address these issues. Summary of the Invention

[0005] This invention provides a reasonably designed sorting device for bottle cap production to solve the technical problems existing in the prior art. This invention has the advantages of simplifying equipment structure, improving adaptability to bottle caps of different specifications, reducing production interruption time, enhancing production continuity, and improving equipment versatility.

[0006] The technical solution adopted by this utility model to solve the technical problems existing in the prior art is as follows: A sorting device for bottle cap production includes a support frame, a support base plate fixed to the support frame by several support tubes, a rotary motor mounted on the support base plate, a feeding turntable mounted on the output shaft of the rotary motor above the support roller assembly, several support roller assemblies mounted on the support base plate, the several support roller assemblies being located below the feeding turntable and rolling in contact with the bottom surface of the feeding turntable; it also includes a circular outer cover structure mounted on the support base plate surrounding the feeding turntable, the top of the circular outer cover structure being open and having an outer cover outlet on its peripheral wall; it also includes a screening component mounted at the outer cover outlet for rejecting bottle caps with the opening facing downwards; and a high-pressure air source is connected to the discharge port below the screening component. The interconnected backflush recovery assembly has its outlet extending into the circular outer cover structure to transfer rejected bottle caps into the circular outer cover structure. A slide assembly is connected to the side outlet of the screening assembly for transferring bottle caps. The screening assembly includes a guide base plate structure connected to the circular outer cover structure, and adjustable railings and guide plates arranged opposite to it with adjustable spacing. A rejection groove is provided on the guide base plate structure. The slide assembly includes an adjustable mounting base connected to a bracket. Two sets of symmetrically arranged limiting rails and a slide support plate covering the outer side of the two sets of limiting rails are movably installed on the adjustable mounting base. A gap is left between the two sets of limiting rails, which, together with the slide support plate, form a slide that allows bottle caps to pass through. An adjustment mechanism for adjusting the width of the slide is provided between the two sets of limiting rails.

[0007] The advantages and positive effects of this utility model are as follows: This utility model provides a sorting device for bottle cap production. Through the synergistic design of rotary sorting and adjustable screening mechanisms, it solves the problems of bottle cap orientation adjustment and specification compatibility, simplifies the device structure, and improves equipment utilization. Compared with the prior art, which requires replacing the cap sorting mechanism to adapt to different bottle cap specifications, this application, through the adjustable spacing of the adjustable rail assembly and guide plate structure, combined with the distance adjustment mechanism of the slide assembly 13, achieves compatibility with multiple bottle cap specifications without replacing any parts. In addition, the design of the backflushing recovery assembly 11 forms a closed-loop cycle, avoiding material waste and further improving the practicality of the device.

[0008] Preferably, the bottom plate structure includes a bottom plate body installed on a circular outer cover structure, and the removal groove includes a cap outlet opening extending along the length direction of the bottom plate body. Several evenly distributed arc-shaped baffles are provided on the edge of the cap outlet opening along the length direction. The area of ​​each arc-shaped baffle is smaller than the opening area of ​​the bottle cap. A gap is left between two adjacent arc-shaped baffles to allow the bottle cap to pass through, and the gap is smaller than the diameter of the bottle cap.

[0009] Preferably, the guide plate structure includes a baffle plate two with a Z-shaped cross-section, and several strip holes extending along its width are provided on the base plate body. The baffle plate two is locked and connected by bolts and lock nuts passing through the strip holes. A limiting upright plate two is integrally formed at the inner end of the baffle plate two, extending through the outer cover outlet to the round outer cover structure. Reinforcing rods are fixed to the back of both the baffle plate two and the limiting upright plate two.

[0010] Preferably, the adjustable guardrail assembly includes a baffle plate with an L-shaped cross-section that is disposed opposite to the guide plate structure. A limiting plate is integrally formed at the inner end of the baffle plate, extending through the outer cover outlet into the circular outer cover structure. The assembly also includes several adjusting screws fixed to the back of the baffle plate. The adjusting screws pass through the upwardly bent part of the guide base plate structure and are locked to the guide base plate structure by nuts.

[0011] Preferably, the adjusting mechanism includes two opposing copper sleeve seats installed on two sets of limiting rails, each copper sleeve seat having a copper sleeve inserted inside; it also includes an adjusting rod installed on the adjusting mounting base, spanning the two sets of limiting rails, the adjusting rod slidingly inserted inside the copper sleeves installed in each copper sleeve seat; threaded holes are provided on the outer peripheral walls of the copper sleeve seats and the copper sleeves inserted inside them, and tightening bolts are screwed into the threaded holes for locking the copper sleeve seats and adjusting rods; it also includes a scale installed on one set of limiting rails; the adjusting mechanism is provided in two sets, with the two sets of adjusting mechanisms located at the upper and lower parts of the adjusting mounting base, respectively.

[0012] Preferably, the backflushing recovery assembly includes a hopper mounted below the screening assembly, a return material lower bend pipe connected to the discharge port of the hopper, an air inlet pipe connected to the return material lower bend pipe, a speed control valve and a gas pipeline mounted on the support at the air inlet pipe, and connected to a high-pressure gas source through the gas pipeline; it also includes a return material straight pipe connected to the discharge port of the return material lower bend pipe, an return material upper bend pipe extending into the circular outer cover structure installed at the discharge port of the return material straight pipe, and the return material straight pipe connected to the support through a return material pipe seat mounted on the support.

[0013] Preferably, the support roller assembly includes two sets of opposing mounting shaft seats mounted on a support base plate. Each mounting shaft seat has a longitudinally extending strip hole, and a roller shaft passes through the two sets of strip holes. A support roller that rolls and contacts the bottom surface of the support base plate is rotatably connected to the roller shaft. The assembly also includes two sets of opposing guide rod seats mounted on the support base plate. Each guide rod seat has a longitudinally extending strip hole, and a transversely arranged shaft support rod that is perpendicular to the roller shaft passes through the two sets of strip holes to support the roller shaft. The assembly also includes screw seats fixed to each guide rod seat, and a screw for supporting the shaft support rod is screwed into each screw seat.

[0014] Preferably, a wear-resistant ring is fixed to the bottom surface of the feeding turntable, and the wear-resistant ring makes rolling contact with the support roller assembly; a rubber gasket is installed on the feeding turntable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a three-dimensional structural diagram of the main body of this utility model, from a frontal perspective; Figure 3 This is a three-dimensional structural diagram of the main body of this utility model, from a rear view. Figure 4 This is a three-dimensional structural diagram of the screening component in this utility model; Figure 5 yes Figure 1 Enlarged diagram of region A in the image; Figure 6 This is a three-dimensional structural diagram of the support roller assembly in this utility model.

[0016] In the diagram: 1. Bracket; 2. Support pipe; 3. Rotary motor; 4. Support roller assembly; 4-1. Mounting shaft seat; 4-2. Roller shaft; 4-3. Screw seat; 4-4. Shaft support rod; 4-5. Guide rod seat; 4-6. Support roller; 5. Support base plate; 6. Feeding turntable; 7. Rubber gasket; 8. Circular outer cover structure; 8-1. Outer cover outlet; 8-2. Outer cover body; 9. Lower pressure ring plate; 10. Wear-resistant ring; 11. Backflush recovery assembly; 11-1. Air inlet; 11-2. Lower return bend; 11-3. Drop hopper; 11-4. Return pipe seat; 11-5. Straight return pipe; 11-6. Upper return bend; 12. Screening assembly; 12-1. Outlet base plate structure; 12-1-1. Arc 12-1-2, Cover slot; 12-1-3, Base plate body; 12-2, Adjustable railing assembly; 12-2-1, Adjusting screw; 12-2-2, Cover guardrail one; 12-2-3, Limiting upright plate one; 12-3, Guide plate structure; 12-3-1, Limiting upright plate two; 12-3-2, Cover guardrail two; 13, Slide assembly; 13-1, Slide support plate; 13-2, Support plate support rod; 13-3, Cover support plate; 13-4, Support plate seat plate; 13-5, Cover front limiting plate; 13-6, Adjustable mounting seat; 13-7, Limiting rail; 13-8, Scale; 13-9, Copper sleeve seat; 13-10, Adjusting rod; 13-11, Mounting top plate; 14, Slide bracket. Detailed Implementation

[0017] To further understand the invention content, features, and effects of this utility model, the following embodiments are provided in detail: Please see Figure 1The present invention relates to a finishing device for bottle cap production, comprising a support 1, a supporting base plate 5 fixed to the support 1 by a plurality of supporting tubes 2, a rotary motor 3 mounted on the supporting base plate 5, a feeding turntable 6 mounted on the output shaft of the rotary motor 3 above a supporting roller assembly 4, a plurality of supporting roller assemblies 4 mounted on the supporting base plate 5, the plurality of supporting roller assemblies 4 being located below the feeding turntable 6 and rolling in contact with the bottom surface of the feeding turntable 6; and a circular outer cover structure mounted on the supporting base plate 5 surrounding the feeding turntable 6. The structure 8 has an open top and an outer cover outlet 8-1 on its peripheral wall; it also includes a screening component 12 installed at the outer cover outlet 8-1 for rejecting bottle caps with the opening facing downwards; a backflush recovery component 11 connected to a high-pressure air source is connected to the discharge port below the screening component 12, and the discharge port of the backflush recovery component 11 extends into the outer cover structure 8 for transferring the rejected bottle caps into the outer cover structure 8; a slide assembly 13 is connected to the discharge port at the side end of the screening component 12 for transferring bottle caps; like Figure 3 As shown, the screening component 12 includes a bottom plate structure 12-1 connected to the circular outer cover structure 8, and adjustable railing components 12-2 and guide plate structure 12-3 arranged opposite to each other with adjustable spacing; a rejection groove is provided on the bottom plate structure 12-1. like Figure 2 and Figure 3 As shown, the slide assembly 13 includes an adjusting mounting base 13-6 connected to the bracket 1. Two sets of symmetrically arranged limiting rails 13-7 and a slide support plate 13-1 covering the outer side of the two sets of limiting rails 13-7 are movably mounted on the adjusting mounting base 13-6. A gap is left between the two sets of limiting rails 13-7 and together with the slide support plate 13-1, they form a slide that allows the bottle cap to pass through. An adjusting mechanism for adjusting the width of the slide is provided between the two sets of limiting rails 13-7.

[0018] like Figure 4 As shown, the bottom plate structure 12-1 includes a bottom plate body 12-1-3 mounted on the circular outer cover structure 8. The removal groove includes a cap outlet slot 12-1-2 extending along the length direction of the bottom plate body 12-1-3. Several evenly distributed arc-shaped baffles 12-1-1 are provided on the edge of the cap outlet slot 12-1-2 along the length direction. The area of ​​each arc-shaped baffle 12-1-1 is smaller than the opening area of ​​the bottle cap. A gap is left between two adjacent arc-shaped baffles 12-1-1 so that the bottle cap can pass through and the gap is smaller than the diameter of the bottle cap.

[0019] Specifically, the bottom plate structure 12-1 is the core component used to achieve the bottle cap screening function, which improves screening accuracy through optimized rejection groove design. In practical applications, the bottom plate body 12-1-3 can be made of metal sheet or high-strength plastic, and its surface is treated with wear resistance to extend its service life. The cap outlet slot 12-1-2 refers to a strip-shaped groove opened along the length of the bottom plate body 12-1-3, the width and depth of which can be adjusted according to different bottle cap specifications. Furthermore, the arc-shaped baffle 12-1-1 is a special structure set at the edge of the cap outlet slot 12-1-2. Its shape can be semi-circular, elliptical, or other curved shapes adapted to the bottle cap opening, aiming to achieve precise screening through contact interference with the bottle cap opening.

[0020] In detail, this solution involves evenly distributed arc-shaped baffles 12-1-1 along the edge of the cap outlet 12-1-2. Utilizing the area-limiting properties of these baffles, the opening edge of the cap will contact and interfere with the baffles when the cap is facing downwards, preventing it from passing through the gap. Simultaneously, the gap between adjacent arc-shaped baffles 12-1-1 is designed to be smaller than the cap diameter, allowing caps with upward-facing openings to pass smoothly without being jammed due to excessive size. This design not only improves screening accuracy but also enhances adaptability to caps of different sizes. Furthermore, the even distribution of the arc-shaped baffles 12-1-1 further improves the stability of the screening process, avoiding cap jamming caused by uneven local force.

[0021] Through the above settings, the bottom plate structure 12-1 achieves precise screening of bottle cap orientation, effectively solving the screening failure problem caused by the simple design of the rejection groove in the prior art. At the same time, by optimizing the design of the arc-shaped baffle 12-1-1 and the gap, this solution significantly improves the compatibility of the screening mechanism with bottle caps of various sizes, providing a reliable guarantee for the overall performance of the bottle cap sorting device.

[0022] like Figure 4 As shown, the guide plate structure 12-3 includes a baffle plate 12-3-2 with a Z-shaped cross-section. Several strip-shaped holes extending along the width direction are provided on the base plate body 12-1-3. The baffle plate 12-3-2 is locked in place by bolts and lock nuts inserted into the strip-shaped holes. A limiting upright plate 12-3-1 is integrally formed at the inner end of the baffle plate 12-3-2, extending from the outer cover outlet 8-1 into the circular outer cover structure 8. Reinforcing rods are fixed to the back of both the baffle plate 12-3-2 and the limiting upright plate 12-3-1. The reinforcing rods can be rectangular tubing or angle steel, etc., and are fixed to the back by welding or bolting to improve the overall resistance to deformation.

[0023] The optimized guide plate structure effectively solves the problem of fluctuating spacing during the screening process. The baffle plate 2 (12-3-2) adopts a Z-shaped cross-section design, providing not only better structural rigidity but also reserving operating space for the adjustment mechanism. The combination of the strip holes and bolt locking structure on the base plate body (12-1-3) allows the baffle plate 2 (12-3-2) to flexibly adjust its position according to the bottle cap size and remain stable after adjustment. The integrated design of the limiting plate 2 (12-3-1) and the baffle plate 2 (12-3-2) ensures synchronous movement of both, precisely controlling the bottle cap's passage position. The reinforcing rods significantly improve the overall structure's resistance to deformation, especially maintaining a stable screening spacing during long-term operation. These features work together to enable the device to accurately adapt to the screening needs of bottle caps of different sizes, improving the accuracy of rejecting bottle caps with downward-facing openings.

[0024] like Figure 4 As shown, the adjustable railing assembly 12-2 includes a cover plate 12-2-2 with an L-shaped cross-section, which is arranged opposite to the guide plate structure 12-3. A limiting plate 12-2-3 extending through the outer cover outlet 8-1 into the circular outer cover structure 8 is integrally formed at the inner end of the cover plate 12-2-2. It also includes a plurality of adjusting screws 12-2-1 fixed to the back of the cover plate 12-2-2. The adjusting screws 12-2-1 pass through the upwardly bent part of the guide bottom plate structure 12-1 and are locked to the guide bottom plate structure 12-1 by nuts.

[0025] Specifically, the baffle plate 12-2-2 is a structural component with lateral limiting function, which can be made by stamping or injection molding of metal sheet. Its purpose is to provide a stable screening channel while preventing the bottle cap from shifting due to shaking during movement. In practical applications, the limiting upright plate 12-2-3 can be understood as an extension structure, which can be connected to the baffle plate 12-2-2 through integral molding or welding. Its main function is to ensure that the bottle cap maintains a vertical posture when passing through the outer cover outlet 8-1. The adjusting screw 12-2-1 is a fastener used for position adjustment, which can be implemented using a common screw or a precision adjusting screw with graduations, aiming to achieve rapid spacing adjustment and immediate fixation. In detail, this solution forms an adjustable screening channel through the cooperation of the baffle plate 12-2-2 and the guide plate structure 12-3. Its L-shaped cross-section design ensures structural strength and provides reliable lateral support for the bottle cap.

[0026] Based on this, the aforementioned adjustable barrier assembly 12-2, together with the guide plate structure 12-1 and the guide plate structure 12-3, constitute a complete screening system. By adjusting the position of the adjusting screw 12-2-1, the width of the screening channel can be flexibly changed to adapt to the screening needs of bottle caps of different specifications. This design is particularly suitable for production scenarios that require frequent changes in bottle cap specifications, effectively solving the problem of poor compatibility of screening components.

[0027] like Figure 3 As shown, the adjusting mechanism includes two opposing copper sleeve seats 13-9 installed on two sets of limiting rails 13-7, with a copper sleeve passing through each copper sleeve seat 13-9. It also includes an adjusting rod 13-10 installed on the adjusting mounting base 13-6, spanning the two sets of limiting rails 13-7. The adjusting rod 13-10 slides through the copper sleeves installed in each copper sleeve seat 13-9. Threaded holes are provided on the outer peripheral walls of both the copper sleeve seat 13-9 and the copper sleeves inside. Tightening bolts are screwed into the threaded holes to lock the copper sleeve seat 13-9 and the adjusting rod 13-10. The threaded holes on the outer peripheral walls of the copper sleeve seat 13-9 and the copper sleeves, combined with the tightening bolts, provide a multi-point fixing mechanism. After the tightening bolts are screwed in, they can simultaneously press the copper sleeve seat 13-9 and the copper sleeves, locking the adjusting rod 13-10 in any position. This double locking method effectively resists the risk of loosening caused by equipment vibration. It also includes a scale 13-8 installed on a set of limit bars 13-7; the adjustment mechanism is provided in two sets and the two sets of adjustment mechanisms are located at the upper and lower parts of the adjustment mounting base 13-6, respectively.

[0028] Specifically, this adjusting mechanism effectively solves the problems of insufficient accuracy in slide width adjustment and poor locking reliability through a precise mechanical structure design. The copper sleeve seat 13-9 is installed on the limit bar 13-7, providing a stable installation base for the adjusting mechanism. The copper sleeve passes through the copper sleeve seat 13-9 to form a low-friction sliding interface, allowing the adjusting rod 13-10 to move smoothly within the copper sleeve. This design, based on the self-lubricating properties of copper, reduces adjustment resistance and achieves continuous fine adjustment of the width.

[0029] like Figure 2 As shown, the backflushing recovery assembly 11 includes a hopper 11-3 installed below the screening assembly 12. A return material lower bend pipe 11-2 is connected to the discharge port of the hopper 11-3. An air inlet 11-1 is connected to the return material lower bend pipe 11-2. A speed control valve and a gas pipeline are installed on the air inlet 11-1 and connected to a high-pressure gas source through the gas pipeline. It also includes a return material straight pipe 11-5 connected to the discharge port of the return material lower bend pipe 11-2. A return material upper bend pipe 11-6 extending into the circular outer cover structure 8 is installed at the discharge port of the return material straight pipe 11-5. The return material straight pipe 11-5 is connected to the support 1 through a return material pipe seat 11-4 installed on the support 1.

[0030] Specifically, the backflush recovery assembly 11 is a device used to retransfer rejected bottle caps to the sorting area, which can be achieved through airflow drive combined with pipe guidance. The hopper 11-3 can be understood as a container for collecting rejected bottle caps, with a funnel-shaped bottom to ensure smooth entry of the caps into the subsequent transport path. The lower return bend 11-2 is a curved pipe that smooths the transition of the bottle caps' movement from the hopper 11-3 to the straight return pipe 11-5, reducing impact caused by height differences. The air inlet 11-1 is a key component connected to the high-pressure air source, and its airflow intensity is adjusted by a speed control valve to adapt to the transport requirements of bottle caps of different sizes. The straight return pipe 11-5 provides a straight transport section, ensuring the bottle caps maintain a stable posture during transport. The upper return bend 11-6 is designed to precisely guide the bottle caps back into the circular outer cover structure 8, avoiding deviation from the target position. The return pipe seat 11-4 serves to support and fix the return straight pipe 11-5, suppressing vibration interference and maintaining the stability of the pipeline system. Through these features, the backflush recovery assembly 11 not only achieves efficient recovery of rejected bottle caps but also significantly improves the operational reliability of the sorting device through optimized airflow control and pipeline layout. This design cleverly combines the advantages of airflow dynamics and mechanical structure, providing a reliable guarantee for the recycling of bottle caps during the sorting process.

[0031] like Figure 6 As shown, the support roller assembly 4 includes two sets of mounting bearings 4-1 mounted on the support base plate 5, each mounting bearing 4-1 having a longitudinally extending strip hole. A roller shaft 4-2 passes through the two sets of strip holes, and a support roller 4-6 is rotatably connected to the roller shaft 4-2, making rolling contact with the bottom surface of the support base plate 5. It also includes two sets of guide rod seats 4-5 mounted on the support base plate 5, each guide rod seat 4-5 having a longitudinally extending strip hole. A transversely arranged shaft support rod 4-4, perpendicular to the roller shaft 4-2, passes through the two sets of strip holes to support the roller shaft 4-2. Finally, it includes screw seats 4-3 fixed to each guide rod seat 4-5, each screw seat 4-3 having a screw threaded onto it to support the shaft support rod 4-4.

[0032] Through the above technical solutions, the support roller assembly 4 not only improves the rotational accuracy of the feeding turntable but also significantly enhances the device's adaptability to bottle caps of different sizes, providing a fundamental guarantee for the continuity and reliability of the bottle cap sorting process. Simultaneously, the combination of this solution with the support base plate 5, feeding turntable 6, and other structures further optimizes the overall device performance, solving the problem of feed turntable wobbling caused by a fixed support height, thereby improving the efficiency and stability of bottle cap sorting.

[0033] like Figure 5As shown, a wear-resistant ring 10 is fixed to the bottom surface of the feeding turntable 6, and the wear-resistant ring 10 rolls in contact with the support roller assembly 4; a rubber gasket 7 is installed on the feeding turntable 6.

[0034] Specifically, the wear-resistant ring 10 refers to an independent component with high hardness and wear resistance. It can be made of polyurethane, hard alloy, or ceramic materials in a ring structure. Its purpose is to absorb frictional stress and disperse contact pressure, preventing the main body of the feeding turntable 6 from being directly exposed to the wear environment, thereby significantly extending the service life of the device. The rubber gasket 7 can be understood as a flexible component utilizing a high coefficient of friction and elastic properties. It can be made of materials such as natural rubber, silicone, or nitrile rubber in a ring shape. Its purpose is to increase the friction of the contact surface, preventing the bottle cap from sliding or shifting during rotation and maintaining the correct upward orientation of the bottle cap opening.

[0035] like Figure 5 As shown, the circular outer cover structure 8 includes an outer cover body 8-2 with a convex cross-section. A downward pressure ring plate 9 is fixed to the bottom surface of the stepped surface of the outer cover body 8-2. By fixing the downward pressure ring plate 9 to the bottom surface of the stepped surface of the outer cover body 8-2, a continuous covering barrier is formed, further counteracting the upward tendency of the bottle cap caused by centrifugal force during rotation. This design ensures that the bottle cap can slide stably along the inner wall of the outer cover to the discharge port, avoiding jamming or material loss caused by the bottle cap jumping out. In conjunction with the aforementioned feeding turntable 6, support roller assembly 4, and other structures, it jointly improves the efficiency and stability of bottle cap sorting.

[0036] like Figure 2 As shown, a support rod 13-2 is inserted through the back of the adjusting mounting base 13-6, and the support rod 13-2 is fixedly connected to the slide rail support plate 13-1. A locking nut is screwed onto the support rod 13-2 for locking the connection with the adjusting mounting base 13-6. A mounting top plate 13-11 is installed on the front of the adjusting mounting base 13-6 for mounting the slide rail bracket 14. In detail, this solution significantly improves the stability and ease of operation of the slide rail assembly during adjustment by optimizing the overall structural design of the adjusting mounting base 13-6, ensuring that the slide rail width can accurately adapt to different sizes of bottle caps and maintain a stable transmission state. The support rod 13-2 inserted through the back of the adjusting mounting base 13-6 and fixedly connected to the slide rail support plate 13-1, combined with the locking mechanism of the locking nut, achieves rigid fixation of the slide rail support plate 13-1, ensuring the long-term consistency of the gap between the slide rail support plate 13-1 and the limiting rail 13-7. An additional mounting top plate 13-11 is added to the front of the adjusting mounting base 13-6, providing a direct and stable mounting reference surface for the slide bracket 14, enabling the bracket to achieve a quick and reliable connection through the top plate.

[0037] Furthermore, each limiting bar 13-7 has an L-shaped cross-section. Its unique geometry enhances the bar's bending stiffness and load-bearing capacity, preventing deformation when the adjusting mechanism applies locking force. Simultaneously, the L-shaped edges facilitate precise engagement with components such as the adjusting rod, ensuring accurate locking of even minor changes in the slide width adjustment, thereby maintaining the unidirectional and stable flow of bottle caps within the slide. In addition, the design of the aforementioned slide assembly, in conjunction with the screening assembly 12 and the backflush recovery assembly 11, effectively addresses issues such as unstable slide support plate fixation, unreliable slide bracket installation, and insufficient structural strength of the limiting bars, thus achieving efficient sorting and stable transport of bottle caps of different sizes.

[0038] like Figure 2 As shown, the slide assembly 13 also includes a tray seat 13-4 installed at the lower end of each limiting rail 13-7. Each tray seat 13-4 has a strip hole and a cover plate 13-3 is installed inside it by bolts and locking nuts passing through the strip hole. It also includes a cover front limiting plate 13-5 installed on the tray seat 13-4 at the sliding discharge end.

[0039] In detail, this solution creates a complete control node at the slide outlet by setting a tray seat 13-4 at the lower end of the limiting bar 13-7. The strip holes on the tray seat 13-4, combined with bolts and locking nuts, allow for continuous adjustment of the position of the cap ejection tray 13-3. This design enables operators to quickly adapt to different cap sizes without replacing parts. The inner placement of the cap ejection tray 13-3 directly supports the bottom edge of the cap, maintaining stability during transport through physical support. The front limiting plate 13-5, located at the sliding discharge end, precisely controls the cap output rhythm, ensuring that caps enter subsequent processes in a single, orderly row. These features, combined with other structures in the slide assembly 13, effectively solve the stability problems caused by the diversity of cap sizes and dynamic transport in cap production, significantly improving the equipment's adaptability to different cap sizes.

[0040] Working principle: After the feeding turntable 6 rotates and sorts the bottle caps, they are guided to the screening component 12 via the circular outer cover structure 8. Bottle caps with the correct orientation are transferred through the slide assembly 13, while bottle caps with the incorrect orientation are sent back into the circular outer cover structure 8 by the backflush recovery component 11 for re-sorting. The adjustable spacing between the adjustable railing assembly 12-2 and the guide plate structure 12-3, combined with the distance adjustment mechanism of the slide assembly 13, allows the device to be compatible with various bottle cap specifications without replacing any parts. This fundamentally simplifies the structure and improves the equipment utilization rate, solving the problem of low equipment utilization caused by the complex structure and inability to adapt to different bottle cap specifications of existing bottle cap sorting devices.

[0041] The rotary motor 3 is mounted on the support base plate 5, and its output shaft drives the feeding turntable 6 to rotate. It uses centrifugal force to push the scattered bottle caps outward, thereby achieving initial sorting. The support roller assembly 4 is located below the feeding turntable 6 and rolls in contact with the bottom surface of the feeding turntable 6. It provides support while reducing rotational friction, ensuring the smooth operation of the feeding turntable 6.

[0042] A further circular outer cover structure 8 surrounds the feeding turntable 6, with an open top for easy addition of bottle caps. An outer cover outlet 8-1 on the periphery guides the orderly output of the sorted bottle caps, preventing them from scattering and piling up. A screening component 12 is installed at the outer cover outlet 8-1, using a rejection groove on the bottom plate structure 12-1 and the corresponding adjustable rail assembly 12-2 and guide plate structure 12-3 to screen the bottle caps by their orientation. The distance between the adjustable rail assembly 12-2 and the guide plate structure 12-3 is adjustable to accommodate bottle caps of different sizes, while rejecting bottle caps with downward-facing openings, ensuring that only correctly oriented bottle caps enter subsequent processes.

[0043] In addition, the backflush recovery component 11 connects to the lower discharge port of the screening component 12, using a high-pressure air source to blow rejected bottle caps back into the circular outer cover structure 8 for reprocessing, forming a closed-loop cycle, reducing material waste and improving processing efficiency. The slide assembly 13 connects to the side discharge port of the screening component 12. By adjusting the distance adjustment mechanism on the mounting base 13-6, the distance between the two sets of limit rails 13-7 is adjusted, changing the slide width to accommodate bottle caps of different sizes, thereby achieving stable conveying of bottle caps.

Claims

1. A finishing device for bottle cap production, characterized in that: The system includes a support frame (1), a support base plate (5) fixed to the support frame (1) via several support tubes (2), a rotary motor (3) mounted on the support base plate (5), a feeding turntable (6) mounted on the output shaft of the rotary motor (3) above the support roller assembly (4), several support roller assemblies (4) mounted on the support base plate (5), the several support roller assemblies (4) being located below the feeding turntable (6) and rolling in contact with the bottom surface of the feeding turntable (6); it also includes a support base plate (1) with a support base plate (2) fixed to the support base plate (1) via several support tubes (2), a rotary motor (3) mounted on the support base plate (5), a feeding turntable (6) mounted on the output shaft of the rotary motor (3), a feeding turntable (6) located above the support roller assembly (4), several support roller assemblies (4) mounted on the support base plate (5), the several support roller assemblies (4) being located below the feeding turntable (6) and rolling in contact with the bottom surface of the feeding turntable (6); and a support base plate (6) with a support base plate (2) fixed to the support base plate (1) via several support tubes (2), a support base plate (5) fixed to the support base plate (1 ... A circular outer cover structure (8) is installed on the plate (5) surrounding the feeding turntable (6). The top of the circular outer cover structure (8) is open and an outer cover outlet (8-1) is provided on the peripheral wall. It also includes a screening component (12) installed at the outer cover outlet (8-1) for removing bottle caps with the opening facing down. A backflush recovery component (11) connected to a high-pressure air source is connected to the discharge port below the screening component (12). The discharge port of the backflush recovery component (11) extends into the circular outer cover structure (8). Inside, a slide assembly (13) is used to transfer rejected bottle caps into the round outer cover structure (8); a slide assembly (13) is connected to the side outlet of the screening assembly (12) for transferring bottle caps; the screening assembly (12) includes a bottom plate structure (12-1) connected to the round outer cover structure (8) and adjustable railing assemblies (12-2) and guide plate structures (12-3) arranged opposite to it with adjustable spacing; a rejection groove is provided on the bottom plate structure (12-1); the slide assembly (13) includes a slide assembly (13) connected to the round outer cover structure (8) for transferring rejected bottle caps into the round outer cover structure (8); the slide assembly (13) includes a slide assembly (13) connected to the bottom plate structure (8) for transferring bottle caps into the round outer cover ... The bracket (1) is connected to the adjustment mounting base (13-6). Two sets of symmetrically arranged limit rails (13-7) and a slide plate (13-1) covering the outer side of the two sets of limit rails (13-7) are movably installed on the adjustment mounting base (13-6). There is a gap between the two sets of limit rails (13-7) and together with the slide plate (13-1), they form a slide that allows the bottle cap to pass through. An adjustment mechanism for adjusting the width of the slide is provided between the two sets of limit rails (13-7).

2. The finishing device for bottle cap production as described in claim 1, characterized in that: The bottom plate structure (12-1) includes a bottom plate body (12-1-3) installed on the circular outer cover structure (8). The removal groove includes a cap outlet slot (12-1-2) extending along its length direction on the bottom plate body (12-1-3). Several evenly distributed arc-shaped baffles (12-1-1) are provided on the edge of the cap outlet slot (12-1-2) along its length direction. The area of ​​each arc-shaped baffle (12-1-1) is smaller than the opening area of ​​the bottle cap. A gap is left between two adjacent arc-shaped baffles (12-1-1) for the bottle cap to pass through, and the gap is smaller than the diameter of the bottle cap.

3. The finishing device for bottle cap production as described in claim 1, characterized in that: The guide plate structure (12-3) includes a baffle plate two (12-3-2) with a Z-shaped cross section. Several strip holes extending along its width are provided on the base plate body (12-1-3). The baffle plate two (12-3-2) is locked and connected by bolts and lock nuts passing through the strip holes. A limiting plate two (12-3-1) is integrally formed at the inner end of the baffle plate two (12-3-2) and extends through the outer cover outlet (8-1) to the round outer cover structure (8). Reinforcing rods are fixed to the back of both the baffle plate two (12-3-2) and the limiting plate two (12-3-1).

4. The finishing device for bottle cap production as described in claim 1, characterized in that: The adjustable railing assembly (12-2) includes a cover plate (12-2-2) with an L-shaped cross section, which is arranged opposite to the guide plate structure (12-3). A limiting plate (12-2-3) is integrally formed at the inner end of the cover plate (12-2-2) and extends through the outer cover outlet (8-1) into the circular outer cover structure (8). It also includes a number of adjusting screws (12-2-1) fixed to the back of the cover plate (12-2-2). The adjusting screws (12-2-1) pass through the upwardly bent part of the guide bottom plate structure (12-1) and are locked to the guide bottom plate structure (12-1) by nuts.

5. The finishing device for bottle cap production as described in claim 1, characterized in that: The adjusting mechanism includes two opposing copper sleeve seats (13-9) installed on two sets of limiting rails (13-7), each with a copper sleeve passing through it. It also includes an adjusting rod (13-10) installed on the adjusting mounting base (13-6) that spans the two sets of limiting rails (13-7). The adjusting rod (13-10) slides through the copper sleeves installed in each copper sleeve seat (13-9). Threaded holes are provided on the outer peripheral walls of the copper sleeve seats (13-9) and the copper sleeves passing through them. Tightening bolts are screwed into the threaded holes to lock the copper sleeve seats (13-9) and the adjusting rod (13-10) together. It also includes a scale (13-8) installed on one set of limiting rails (13-7). There are two sets of adjusting mechanisms, and the two sets of adjusting mechanisms are located at the upper and lower parts of the adjusting mounting base (13-6), respectively.

6. The finishing device for bottle cap production as described in claim 1, characterized in that: The backflushing recovery assembly (11) includes a hopper (11-3) installed below the screening assembly (12), a return material lower bend (11-2) connected to the discharge port of the hopper (11-3), an air inlet (11-1) connected to the return material lower bend (11-2), a speed control valve and a gas pipeline installed on the air inlet (11-1) of the support (1), and connected to a high-pressure gas source through the gas pipeline; it also includes a return material straight pipe (11-5) connected to the discharge port of the return material lower bend (11-2), a return material upper bend (11-6) installed at the discharge port of the return material straight pipe (11-5) extending into the circular outer cover structure (8), and the return material straight pipe (11-5) connected to the support (1) through a return material pipe seat (11-4) installed on the support (1).

7. The finishing device for bottle cap production as described in claim 1, characterized in that: The support roller assembly (4) includes two sets of mounting shaft seats (4-1) installed on the support base plate (5) and arranged opposite to each other. Each mounting shaft seat (4-1) has a longitudinally extending strip hole. A roller shaft (4-2) is inserted between the two sets of strip holes. A support roller (4-6) that rolls in contact with the bottom surface of the support base plate (5) is rotatably connected to the roller shaft (4-2). The assembly also includes two sets of guide rod seats (4-5) installed on the support base plate (5) and arranged opposite to each other. Each guide rod seat (4-5) has a longitudinally extending strip hole. A shaft support rod (4-4) that is arranged laterally and perpendicular to the roller shaft (4-2) is inserted through the two sets of strip holes to support the roller shaft (4-2). The assembly also includes screw seats (4-3) fixed to each guide rod seat (4-5). Each screw seat (4-3) has a screw for supporting the shaft support rod (4-4) screwed into it.

8. The finishing apparatus for bottle cap production as described in claim 1, characterized in that: in A wear-resistant ring (10) is fixed to the bottom surface of the feeding turntable (6), and the wear-resistant ring (10) rolls in contact with the support roller assembly (4); a rubber gasket (7) is installed on the feeding turntable (6).

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