Cover sorting machine capable of directionally screening bottle caps in waterfall mode

The cap sorting machine, which uses a waterfall-style directional screening method, achieves stable conveying and precise screening of caps of different sizes by utilizing the synergistic effect of the conveying and output components. This solves the problem of poor equipment adaptability in existing technologies and improves production efficiency and finished product quality.

CN223616252UActive Publication Date: 2025-12-02ZHANGJIAGANG CHENGYIDA PACKAGING MASCH CO LTD
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Patent Information

Application Number
CN202423084040.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-12-02
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

Existing cap sorting machines cannot efficiently and accurately orientedly sieve caps of different sizes, resulting in frequent equipment failures and poor product quality.

Method used

The cap sorting machine adopts a waterfall-style directional screening method. The conveying component stably transports the caps, the output component precisely adjusts the posture, and the screening component screens the caps step by step according to their size. It uses negative pressure adsorption and airflow to achieve stable transport and accurate classification of the caps.

Benefits of technology

It improves bottle cap conveying efficiency, ensures uniform finished product specifications, reduces equipment failures, and enhances screening accuracy and finished product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bottle cap screening, in particular to a waterfall type directional bottle cap screening cap sorter which comprises a base, a plurality of supporting rods are fixedly connected to the top of the base, a supporting frame is fixedly connected to the tops of the supporting rods, and a conveying assembly is installed in the supporting frame. The top of the supporting rod is fixedly connected with a discharging box, the discharging box is located at the front end of the conveying assembly, the conveying assembly is internally provided with an output assembly, the top of the supporting rod is fixedly provided with a screening assembly, and the screening assembly is located on one side of the supporting frame; and the conveying assembly comprises rollers, a driving belt, a moving block and a stop block, and the two rollers are movably installed at the upper end and the lower end of the interior of the supporting frame. The bottle cap conveying and sorting device can efficiently and stably convey bottle caps and accurately adjust postures, can accurately screen, sort and collect the bottle caps of different sizes, effectively improves conveying and screening efficiency and accuracy, reduces cost and ensures finished product quality.
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Description

Technical Field

[0001] This utility model relates to the field of bottle cap screening, and in particular to a cap sorting machine for waterfall-style directional screening of bottle caps. Background Technology

[0002] With the rapid development of society, the packaging industry is booming, and bottle caps, as an indispensable sealing component for various bottles, are seeing their production scale increase daily. Although small, bottle caps bear multiple crucial responsibilities, including sealing, preservation, and anti-counterfeiting. Therefore, the stringent quality control during the production process is beyond imagination. Finished bottle caps undergo multiple meticulous screening processes, removing defective or deformed products and precisely separating caps of different specifications and sizes to meet the diverse needs of various bottles. After all, different beverage, daily chemical, and pharmaceutical bottles have varying requirements for cap size and style; accurate cap screening is the cornerstone of ensuring smooth subsequent packaging processes and meeting product quality standards.

[0003] Currently, traditional cap sorting machines are mostly designed based on a single-size fit principle in the cap screening process. Their internal mechanical structures and screening channels are fixed and rigid, only capable of handling caps of specific sizes. When faced with a mixture of caps of different sizes, these machines become inadequate. This can easily cause caps to become stuck inside the machine, leading to frequent equipment failures and soaring downtime maintenance costs. Furthermore, inaccurate screening can result in mismatched caps being mixed into the finished product packaging, causing quality problems such as poor sealing and inadequate fit, severely damaging the company's economic benefits and brand reputation. Utility Model Content

[0004] In view of this, the present invention provides a waterfall-style directional screening bottle cap sorting machine. The main technical problem to be solved is that the existing cap sorting machines cannot efficiently and accurately achieve directional screening of bottle caps of different sizes, and it is necessary to overcome the shortcomings of poor adaptability of traditional cap sorting machines.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a waterfall-style directional screening bottle cap sorting machine, comprising a base, a plurality of support rods fixedly connected to the top of the base, a support frame fixedly connected to the top of the support rods, a conveying assembly installed inside the support frame, a discharge box fixedly connected to the top of the support rods, the discharge box being located at the front end of the conveying assembly, an output assembly installed inside the conveying assembly, and a screening assembly fixedly installed on the top of the support rods, the screening assembly being located on one side of the support frame;

[0006] The conveying assembly includes rollers, drive belts, moving blocks, and stop blocks. Two rollers are movably installed at the upper and lower ends inside the support frame. Two drive belts are sleeved on the outer walls of the two rollers. Multiple moving blocks are fixedly installed on the outer walls of the two drive belts. Two stop blocks are fixedly connected to the upper and lower ends of the outer walls of the moving blocks.

[0007] By adopting the above technical solution, bottle caps can be stably and continuously conveyed upwards, preventing them from slipping or shifting during transport, ensuring smooth connection of subsequent processes, and greatly improving conveying efficiency and stability.

[0008] As a further description of the above technical solution:

[0009] The output component includes a first air pipe, a mounting block, a paddle, a second air pipe, a suction hood, and an air outlet block. The first air pipe is fixedly installed on one side of the support frame. The mounting block is fixedly connected to the outer wall of the first air pipe. The paddle is movably installed inside the mounting block. The second air pipe is fixedly connected to the end of the mounting block away from the first air pipe. The suction hood is fixedly connected to the end of the first air pipe away from the mounting block. The suction hood is located inside the support frame and is attached to the back of multiple movable blocks. The air outlet block is fixedly connected to the end of the first air pipe away from the mounting block.

[0010] By adopting the above technical solution, the negative pressure suction generated by the rotation of the paddle is used to accurately adsorb bottle caps through the suction hood, effectively identify the orientation of the bottle caps, and adjust the bottle caps that do not conform to the conveying posture to ensure that the subsequent bottle caps can enter the screening process in the correct posture, which greatly improves the accuracy of cap orientation and reduces misoperation and rework.

[0011] As a further description of the above technical solution:

[0012] The output component also includes a slot and an air inlet slot. The slot is formed inside the movable block, and the air inlet slot is formed on the outer wall of the support frame. The air outlet block is in contact with the air inlet slot.

[0013] By adopting the above technical solution, the slot provides a channel for the transmission of negative pressure suction, which is precisely applied to the back of the bottle cap to enhance the adsorption effect; the air inlet slot and the air outlet block work together to change the airflow direction in a timely manner, and cleverly use the wind power to push the bottle cap to the predetermined screening area, so as to achieve smooth transfer of the bottle cap, avoid blockage and accumulation, and optimize the overall screening rhythm.

[0014] As a further description of the above technical solution:

[0015] A baffle is fixedly connected to the front end of the support frame, and the suction hood is located at the bottom of the baffle.

[0016] By adopting the above technical solution, the baffle acts as a physical barrier to prevent bottle caps from falling accidentally and to stabilize the bottle cap queue.

[0017] As a further description of the above technical solution:

[0018] The screening assembly includes a screening box, a first partition, a second partition, and a third partition. The screening box is fixedly connected to the top of the support rod and located on the side of the support frame away from the first air tube. The first partition is fixedly connected inside the screening box. The second partition is fixedly connected inside the screening box and located at the bottom of the first partition. The third partition is fixedly connected inside the screening box and located at the bottom of the second partition. Each of the first, second, and third partitions has a screening groove inside. The screening groove inside the first partition is larger than the screening groove inside the second partition, and the screening groove inside the second partition is larger than the screening groove inside the third partition.

[0019] By adopting the above technical solution, a multi-level screening structure is designed according to bottle caps of different sizes, with each partition screening trough decreasing in size, allowing the bottle caps to be sorted in an orderly manner according to their size.

[0020] As a further description of the above technical solution:

[0021] The support frame is fixedly connected to the screening box, and an air outlet groove is provided at the joint between the support frame and the screening box.

[0022] By adopting the above technical solution, the airflow precisely pushes the bottle caps into the sieving box, preventing the bottle caps from scattering.

[0023] As a further description of the above technical solution:

[0024] A first drive motor is fixedly installed on the outer wall of the support frame, the bottom roller is fixedly installed on the output end of the first drive motor, a second drive motor is fixedly installed on the outer wall of the mounting block, and the blade is fixedly installed on the output end of the second drive motor.

[0025] By adopting the above technical solutions, precise linkage of all aspects of the capping machine is ensured, adapting to complex production conditions and improving the reliability and flexibility of equipment operation.

[0026] As a further description of the above technical solution:

[0027] The base has multiple support feet fixedly connected to its bottom.

[0028] By adopting the above technical solutions, the vibration and shaking of the equipment during operation can be reduced, thereby reducing errors and malfunctions caused by unstable foundations.

[0029] By employing the above technical solution, the cap sorting machine for waterfall-style directional screening of bottle caps of this utility model has at least the following beneficial effects:

[0030] 1. Compared with existing technologies, this waterfall-style directional screening bottle cap sorting machine uses a first drive motor to drive the roller, drive belt and moving block to form a stable upward conveying force. The stop block helps to stabilize the bottle caps, which can efficiently and smoothly convey the bottle caps piled up in the discharge box, so that the bottle caps can quickly and orderly enter the subsequent processing process, greatly improve the bottle cap conveying efficiency, reduce the cost of manual intervention, and create favorable conditions for subsequent accurate screening.

[0031] 2. Compared with existing technologies, this waterfall-style directional bottle cap sorting machine precisely adsorbs and adjusts the bottle caps' posture through the output component, and then uses the air outlet to precisely blow the bottle caps into the screening component. Combined with the first, second, and third partitions for step-by-step screening, it can meticulously classify and orderly discharge bottle caps according to their size, effectively solving the problem of mixed screening of bottle caps of different sizes, significantly improving screening accuracy, ensuring uniform specifications of finished bottle caps, and meeting high-standard packaging requirements. Attached Figure Description

[0032] Figure 1 This is a first-view structural diagram of a waterfall-style directional bottle cap sorting machine proposed in this utility model.

[0033] Figure 2 This is a structural schematic diagram from a second perspective of a waterfall-style directional screening bottle cap sorting machine proposed in this utility model.

[0034] Figure 3 This is an exploded structural diagram of the conveying component in a waterfall-style directional bottle cap sorting machine proposed in this utility model.

[0035] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0036] Figure 5 This is an exploded structural diagram of the output component in a waterfall-style directional bottle cap sorting machine proposed in this utility model.

[0037] Figure 6 for Figure 5 Enlarged structural diagram at point B;

[0038] Figure 7 This is a cross-sectional structural diagram of the screening component in a waterfall-style directional screening bottle cap sorting machine proposed in this utility model.

[0039] Figure 8 for Figure 7 Enlarged structural diagram at point C.

[0040] Legend:

[0041] 1. Base; 2. Support rod; 3. Support frame; 301. Baffle; 4. Conveying assembly; 401. Roller; 402. Drive belt; 403. Moving block; 404. Stop block; 405. First drive motor; 5. Discharge box; 6. Output assembly; 601. First air pipe; 602. Mounting block; 603. Paddle; 604. Second air pipe; 605. Suction hood; 606. Air outlet block; 607. Slot; 608. Air inlet slot; 609. Second drive motor; 7. Screening assembly; 701. Screening box; 702. Air outlet slot; 703. First partition; 704. Second partition; 705. Third partition; 8. Support feet. Detailed Implementation

[0042] Reference Figure 1-8 This utility model provides a waterfall-style directional screening bottle cap sorting machine: It includes a base 1, with multiple support rods 2 fixedly connected to the top of the base 1, cooperating with the base 1 to support the entire device. A support frame 3 is fixedly connected to the top of the support rods 2 for mounting various parts. A conveying assembly 4 is installed inside the support frame 3 for conveying bottle caps upwards. A discharge box 5 is fixedly connected to the top of the support rods 2, located at the front end of the conveying assembly 4 for storing bottle caps. An output assembly 6 is installed inside the conveying assembly 4 for conveying bottle caps to a screening assembly 7. The screening assembly 7 is fixedly installed on the top of the support rods 2, located at one end of the support frame 3. The side is used to screen bottle caps of different sizes; the conveying assembly 4 includes a roller 401, a drive belt 402, a moving block 403 and a stop block 404. The roller 401 has two movably installed at the upper and lower ends inside the support frame 3. It drives the top roller 401 to rotate synchronously through the friction with the drive belt 402. The drive belt 402 has two sleeves on the outer walls of the two rollers 401. The moving block 403 has multiple fixed installations on the outer walls of the two drive belts 402. The moving block 403 on the outer wall of the drive belt 402 moves cyclically with the belt. The stop block 404 has two fixed connections on the upper and lower ends of the outer wall of the moving block 403 to limit the lateral displacement of the bottle caps.

[0043] Output component 6 includes a first air pipe 601, a mounting block 602, a blade 603, a second air pipe 604, a suction hood 605, and an air outlet block 606. The first air pipe 601 is fixedly installed on one side of the support frame 3. The mounting block 602 is fixedly connected to the outer wall of the first air pipe 601. The blade 603 is movably installed inside the mounting block 602. The blade 603 rotates rapidly inside the mounting block 602. The special shape and high-speed rotation of the blade 603 instantly generate a strong negative pressure in the surrounding area. In a pressurized environment, the second air pipe 604 is fixedly connected to the end of the mounting block 602 away from the first air pipe 601, and the suction hood 605 is fixedly connected to the end of the first air pipe 601 away from the mounting block 602. The suction hood 605 is located inside the support frame 3 and is attached to the back of multiple moving blocks 403. The suction hood 605 serves as a negative pressure release terminal, closely attached to the back of the moving blocks 403, and precisely acts on the bottle cap. The air outlet block 606 is fixedly connected to the end of the first air pipe 601 away from the mounting block 602.

[0044] The output component 6 also includes a slot 607 and an air inlet slot 608. The slot 607 is formed inside the movable block 403, and the air inlet slot 608 is formed on the outer wall of the support frame 3. The air outlet block 606 is in close contact with the air inlet slot 608. When the suction hood 605 generates negative pressure suction, the slot 607 allows the negative pressure airflow to pass smoothly through the interior of the movable block 403 and directly act on the flat surface of the back of the bottle cap.

[0045] A baffle 301 is fixedly connected to the front end of the support frame 3, and the suction hood 605 is located at the bottom of the baffle 301.

[0046] The sieving assembly 7 includes a sieving box 701, a first partition 703, a second partition 704, and a third partition 705. The sieving box 701 is fixedly connected to the top of the support rod 2 and located on the side of the support frame 3 away from the first air pipe 601. Its overall structural design ensures that after the bottle cap enters the sieving box 701, it falls naturally under gravity and passes through the sieving of each partition in sequence. The first partition 703 is fixedly connected inside the sieving box 701, and the second partition 704 is fixedly connected to the sieving box. Inside 701 and located at the bottom of the first partition 703, the third partition 705 is fixedly connected inside the sieving box 701 and located at the bottom of the second partition 704. The first partition 703, the second partition 704 and the third partition 705 all have sieving grooves inside. The sieving groove inside the first partition 703 is larger than the sieving groove inside the second partition 704, and the sieving groove inside the second partition 704 is larger than the sieving groove inside the third partition 705. Different bottle caps are sieved through sieving grooves of different sizes.

[0047] The support frame 3 is fixedly connected to the screening box 701, and an air outlet groove 702 is provided at the joint between the support frame 3 and the screening box 701.

[0048] A first drive motor 405 is fixedly installed on the outer wall of the support frame 3, and a bottom roller 401 is fixedly installed on the output end of the first drive motor 405. The first drive motor 405 provides strong power to the conveying component 4, and drives the roller 401 and the drive belt 402 to operate stably. A second drive motor 609 is fixedly installed on the outer wall of the mounting block 602, and a paddle 603 is fixedly installed on the output end of the second drive motor 609. The second drive motor 609 precisely controls the generation of negative pressure suction. The dual power works together to ensure precise linkage of each link of the lid sorting machine and adapt to complex production conditions.

[0049] The bottom of the base 1 is fixedly connected with multiple support feet 8.

[0050] Working principle: First, bottle caps of different sizes are put into the discharge box 5 in batches, and then the first drive motor 405 and the second drive motor 609 are turned on at the same time.

[0051] When the first drive motor 405 is powered on, it drives the bottom roller 401 to start rotating at a constant speed. Through close contact with the drive belt 402, the top roller 401 rotates synchronously and in the same direction under the influence of friction. Multiple moving blocks 403 fixed on the outer wall of the drive belt 402 move in a cycle with the belt. The side blocks 404 restrict the lateral displacement of the bottle cap. Even when operating at high speed and when the bottle caps are being transported in a dense manner, the bottle caps can be prevented from slipping or becoming misaligned, ensuring that the bottle caps move steadily upward along the predetermined route in all directions.

[0052] Simultaneously, the second drive motor 609 rotates at high speed, driving the blade 603 to rotate rapidly inside the mounting block 602. The special shape of the blade 603 and its high-speed rotation instantly create a strong negative pressure environment in the surrounding area. Air is continuously drawn in through the second air pipe 604, and the suction hood 605, as the negative pressure release terminal, fits tightly against the back of the moving block 403, precisely acting on the bottle cap. At this time, the bottle caps in the discharge box 5 are in different positions. If the back of the bottle cap faces the moving block 403, because the back of the bottle cap is flat and smooth, and the slot 607 opens a direct path for the negative pressure suction, the bottle cap will be steadily adsorbed by the suction hood 605. On the other hand, if the front of the bottle cap faces the moving block 403 and the front is not flat, the negative pressure is difficult to effectively adsorb, and the bottle cap remains in its original position.

[0053] As the moving block 403 continues to move upward, the bottle caps that are being attracted follow the movement. When they reach the area where the baffle 301 is located, the physical obstruction changes the environment in which the suction works. The suction force of the suction hood 605 on the bottle cap is reduced sharply until it fails. The bottle cap loses its attraction force, but thanks to the double obstruction of the baffle 404 and the baffle 301, it remains steadily in the conveying queue without falling or deviating.

[0054] Once the bottle cap moves to the corresponding position in the air inlet slot 608, the airflow generated by the rotation of the blade 603 in the early stage is transmitted through a series of air pipes, and is precisely turned and ejected at the air outlet block 606. The strong airflow carries the bottle cap and precisely pushes it through the air outlet slot 702, and smoothly enters the screening box 701 area.

[0055] Upon entering the screening box 701, the bottle caps encounter a precision screening system composed of the first partition 703, the second partition 704, and the third partition 705. Larger bottle caps are first intercepted by the first partition 703 and slide down its screening groove to the corresponding collection area; slightly smaller bottle caps successfully pass through the first partition 703 but are blocked by the second partition 704 and diverted along the screening groove; even smaller bottle caps continue to descend and are finally screened by the third partition 705. Thus, bottle caps of different sizes are placed in their respective positions, completing an efficient and precise screening process.

[0056] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterfall-style directional screening bottle cap sorting machine, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a plurality of support rods (2), the top of the support rods (2) is fixedly connected to a support frame (3), a conveying assembly (4) is installed inside the support frame (3), a discharge box (5) is fixedly connected to the top of the support rods (2), the discharge box (5) is located at the front end of the conveying assembly (4), an output assembly (6) is installed inside the conveying assembly (4), a screening assembly (7) is fixedly installed on the top of the support rods (2), and the screening assembly (7) is located on one side of the support frame (3); The conveying assembly (4) includes a roller (401), a drive belt (402), a moving block (403), and a stop block (404). The roller (401) has two movably mounted on the upper and lower ends inside the support frame (3). The drive belt (402) has two sleeves on the outer walls of the two rollers (401). The moving block (403) has multiple fixedly mounted on the outer walls of the two drive belts (402). The stop block (404) has two fixedly connected to the upper and lower ends of the outer wall of the moving block (403).

2. The cap sorting machine for waterfall-type directional screening of bottle caps according to claim 1, characterized in that: The output component (6) includes a first air pipe (601), a mounting block (602), a paddle (603), a second air pipe (604), a suction hood (605), and an air outlet block (606). The first air pipe (601) is fixedly installed on one side of the support frame (3). The mounting block (602) is fixedly connected to the outer wall of the first air pipe (601). The paddle (603) is movably installed inside the mounting block (602). The second air pipe (604) is fixedly connected to the end of the mounting block (602) away from the first air pipe (601). The suction hood (605) is fixedly connected to the end of the first air pipe (601) away from the mounting block (602). The suction hood (605) is located inside the support frame (3) and is attached to the back of a plurality of movable blocks (403). The air outlet block (606) is fixedly connected to the end of the first air pipe (601) away from the mounting block (602).

3. The cap sorting machine for waterfall-type directional screening of bottle caps according to claim 2, characterized in that: The output component (6) also includes a slot (607) and an air inlet slot (608). The slot (607) is opened inside the movable block (403), and the air inlet slot (608) is opened on the outer wall of the support frame (3). The air outlet block (606) is in close contact with the air inlet slot (608).

4. A cap sorting machine for waterfall-type directional screening of bottle caps according to claim 2, characterized in that: The front end of the support frame (3) is fixedly connected to a baffle (301), and the suction hood (605) is located at the bottom of the baffle (301).

5. A cap sorting machine for waterfall-type directional screening of bottle caps according to claim 1, characterized in that: The screening assembly (7) includes a screening box (701), a first partition (703), a second partition (704), and a third partition (705). The screening box (701) is fixedly connected to the top of the support rod (2) and located on the side of the support frame (3) away from the first air pipe (601). The first partition (703) is fixedly connected inside the screening box (701), and the second partition (704) is fixedly connected inside the screening box (701) and located on the side of the first air pipe (601). At the bottom of the plate (703), the third partition (705) is fixedly connected to the inside of the screening box (701) and located at the bottom of the second partition (704). The first partition (703), the second partition (704) and the third partition (705) all have screening grooves inside. The screening groove inside the first partition (703) is larger than the screening groove of the second partition (704), and the screening groove of the second partition (704) is larger than the screening groove of the third partition (705).

6. A cap sorting machine for waterfall-type directional screening of bottle caps according to claim 5, characterized in that: The support frame (3) is fixedly connected to the screening box (701), and an air outlet groove (702) is provided at the joint between the support frame (3) and the screening box (701).

7. A cap sorting machine for waterfall-type directional screening of bottle caps according to claim 2, characterized in that: The outer wall of the support frame (3) is fixedly installed with a first drive motor (405), the bottom roller (401) is fixedly installed at the output end of the first drive motor (405), the outer wall of the mounting block (602) is fixedly installed with a second drive motor (609), and the blade (603) is fixedly installed at the output end of the second drive motor (609).

8. A cap sorting machine for waterfall-type directional screening of bottle caps according to claim 1, characterized in that: The bottom of the base (1) is fixedly connected with multiple support feet (8).