Bottle cap removing device and cap sorter

Abstract

The bottle cap removing device comprises a cap removing mechanism and a cap blocking mechanism, and the cap removing mechanism is arranged on the inner wall of a cap containing box, located above the tail end of a supporting plate and suitable for applying thrust extending in the radial direction of a cap separating disc to bottle caps with unqualified postures in a station groove. The cap blocking mechanism is located on the cap separating disc and provided with a plurality of bottle cap guiding channels which extend in the radial direction of the cap separating disc and are in one-to-one butt joint with the station grooves, and the bottle cap guiding channels are suitable for guiding bottle caps with unqualified postures to slide down along a set track. The bottle cap removing device improves the removing speed and stability of bottle caps with unqualified postures, and further improves the overall cap sorting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automatic cap sorting equipment, and in particular to a bottle cap rejection device and a cap sorter. Background Technology

[0002] In the production and packaging process of bottled products with pump caps or gun caps, it is necessary to first adjust the position of the pump caps or gun caps with straws so that they are output in a set posture so that the grippers in the subsequent process can place them on the bottle mouth. Chinese invention patent CN 118637310 B discloses a cap sorting device and method for bottle caps with straws. The cap sorting device includes an inclined cap holding box, bottle caps, a cap separating plate, a rotary drive mechanism, and a support plate. The cap separating plate is installed inside the cap holding box and is rotatably supported on the bottom plate of the cap holding box. The inclined direction is consistent with the cap holding box. The rotary drive mechanism is connected to the cap separating plate, so that the bottle caps entering the cap holding box form a first posture. Multiple work station slots are evenly opened on the outer periphery of the cap separating plate. The support plate is installed at the lower end of the cap holding box to support the bottle caps in the corresponding work station slots, so that the bottle caps form a second posture. A step is formed between the end of the support plate and the bottom plate of the cap holding box, so that the bottle caps form a third posture. Thus, the disorderly bottle caps entering the cap holding box are sorted into the third posture with the straw facing upward.

[0003] The cap sorter described above primarily utilizes the rotation of an inclined cap-separating disc and the inability of the workstation slot to limit caps with incorrect posture. As the caps rotate towards the top of the cap container, they automatically slide out of the workstation slot under gravity, achieving automatic rejection. However, during this process, the caps that slide out of the workstation slot rotate under the influence of the disc and move towards the bottom of the container under gravity. Therefore, as they slide from the top to the bottom, they are prone to colliding with the straws of other caps, affecting the correct caps and causing a decrease in sorting efficiency and inaccurate subsequent posture changes. Therefore, the existing cap sorter structure needs to be optimized. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a bottle cap rejection device and a cap sorting tool, thereby improving the rejection speed and stability of bottle caps with unqualified postures, and thus improving the overall cap sorting efficiency.

[0005] The technical solution to achieve the purpose of this utility model is:

[0006] A bottle cap rejection device includes a cap rejection mechanism and a cap blocking mechanism. The cap rejection mechanism is disposed on the inner wall of a cap receiving box and located above the end of a support plate. It is adapted to apply a thrust extending radially along a cap separating plate to bottle caps with unqualified posture in the work station slot. The cap blocking mechanism is located on the cap separating plate and is provided with a plurality of bottle cap guide channels extending radially along the cap separating plate and connecting one by one with the work station slot. The bottle cap guide channels are adapted to guide bottle caps with unqualified posture to slide down along a set trajectory.

[0007] Furthermore, the cap container is provided with a limiting plate to restrict the bottle caps from sliding into the work station slot layer by layer. The cap rejection mechanism is a first air nozzle fixed on the inner wall of the cap container. The outlet of the first air nozzle is arranged radially towards the cap container, higher than the top of the bottle cap in the second posture and lower than the limiting plate. The thrust is generated by blowing air towards the bottle cap with unqualified posture through the first air nozzle.

[0008] Furthermore, at least two first air nozzles are provided and located at the end of the limiting plate, arranged circumferentially along the cover box;

[0009] Furthermore, the distance between the outlets of the two first air nozzles is equal to the circumferential distance between adjacent workstation slots located on the same circumferential surface.

[0010] Furthermore, the outlet diameter of the first air nozzle is smaller than the inner tube diameter of the first air nozzle.

[0011] Furthermore, the capping mechanism includes a plurality of baffles disposed on the upper surface of the capping disc and extending radially along the capping disc, the baffles being located between adjacent workstation slots, and adjacent baffles forming the capping guide channel.

[0012] Furthermore, the top of the baffle is higher than the top of the bottle cap in its second orientation.

[0013] Furthermore, two adjacent baffles are of different lengths, while baffles spaced apart are of the same length, forming a cover mechanism surrounded by baffles of varying lengths.

[0014] Furthermore, the end of the baffle near the axis of the cover plate is provided with an inclined surface that slopes away from the axis of the cover plate.

[0015] Furthermore, the width of the baffle increases sequentially from the end closer to the axis of the cover plate to the end farther away from the axis of the cover plate.

[0016] A cap sorting device includes a cap posture adjustment device and a cap rejection device as described above. The cap posture adjustment device is a second air nozzle fixed on the inner wall of the cap container. The outlet of the second air nozzle is set downward and faces the side wall of the head end of a qualified cap in the work station slot.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects:

[0018] (1) This utility model applies a pushing force to bottle caps with unqualified posture through a cap-removing mechanism, so that bottle caps with unqualified posture can be quickly removed when they arrive at the cap-removing mechanism along with the cap sorting tray. Compared with the existing removal method that relies on gravity to slide down naturally, it improves the removal speed and stability. At the same time, a cap-blocking mechanism is added to limit the bottle caps with unqualified posture through the bottle cap guide channel, so that they slide down according to the set trajectory and avoid affecting other bottle caps with qualified posture. On the other hand, the overall structure allows bottle caps with unqualified posture to return more quickly and undergo the next round of posture adjustment, thereby improving the overall cap sorting efficiency.

[0019] (2) This utility model uses the first air nozzle to blow air to form a pushing force to push the bottle cap with unqualified posture. When the bottle cap is in qualified posture, the outlet of the first air nozzle is higher than the top of the bottle cap and cannot apply a pushing force to the bottle cap. When the bottle cap is in unqualified posture, the unqualified bottle cap is quickly blown out of the work station slot by the impact of the airflow. The bottle cap that is freed from the restriction of the work station slot can quickly move away from the work station slot and re-enter the work station slot for posture adjustment. The structure is simple and the rejection efficiency is high.

[0020] (3) This utility model is provided with at least two first air nozzles to avoid rejection failure caused by inconsistent air pressure of the first air nozzles, and further improve rejection stability.

[0021] (4) By reducing the diameter of the first air nozzle outlet, the present invention achieves the convergence of airflow, thereby increasing the airflow pressure, which is more conducive to removing bottle caps with unqualified posture; in addition, due to the increase of airflow impact force, the set distance between the first air nozzle outlet and the bottle cap can be expanded, reducing the probability of interference between the bottle cap and the first air nozzle.

[0022] (5) This utility model adopts a baffle structure to form a bottle cap guide channel, which is simple in structure.

[0023] (6) The height of the baffle strip of this utility model is higher than the top of the bottle cap in the second posture, thereby protecting the bottle cap in the correct posture in the bottle cap guide channel, so that the baffle strip can better block the influence of the diffused airflow on the surrounding bottle caps and further reduce interference.

[0024] (7) The arrangement of the baffles of this utility model with one long and one short makes the entrance of the bottle cap guide channel larger, making it easier for the bottle cap to enter the work station slot.

[0025] (8) The end of the baffle of this utility model is provided with a bevel to avoid the bottle cap with unqualified posture from being interfered with by the baffle when it slides down, so that the bottle cap can slide down more smoothly and further improve the stability of cap removal.

[0026] (9) The variable width setting of the baffle strip of this utility model makes the two sides of the bottle cap guide channel tend to be parallel, thereby limiting the bottle cap entering it, so that the bottle cap extends radially along the cap plate and better adjusts the posture of the bottle cap.

[0027] (10) The cap sorter of this utility model is equipped with a cap rejection mechanism and a cap posture adjustment device, which can quickly reject caps with unqualified postures and quickly adjust caps with qualified postures, so that they can quickly change from the second posture to the third posture. Attached Figure Description

[0028] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein:

[0029] Figure 1 This is a perspective view of the present utility model;

[0030] Figure 2 for Figure 1 Sectional view of plane AA in the middle;

[0031] Figure 3 This is a partially enlarged view of the cap-removing mechanism 1 of this utility model;

[0032] Figure 4 This is a partially enlarged view of the present invention from a top perspective.

[0033] The labels in the attached diagram are:

[0034] 100-ton container, 200-ton cover plate, 300-ton support plate, 400-ton workstation slot, 500-ton limit plate;

[0035] 1. Cap removal mechanism; 2. Cap blocking mechanism; 2-1. Bar; 2-1-1. Inclined surface; 3. Cap posture adjustment device. Detailed Implementation

[0036] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0037] (Example 1)

[0038] like Figures 1 to 4The cap sorting device shown has the same main structure as the cap sorting device with authorization announcement number CN 118637310 B, including a cap holding box 100, a cap separating plate 200, a support plate 300, a work station groove 400, and a limiting plate 500, used for sorting bottle caps of pump cap or gun cap structure. In this structure, caps with incorrect posture cannot be caught in the work station groove and will naturally slide down, easily colliding with other correctly positioned caps during their slide, thus limiting the sorting efficiency and stability. Therefore, this embodiment adds a cap rejection device to the existing structure. The cap rejection device includes a cap rejection mechanism 1 and a cap blocking mechanism 2. The cap rejection mechanism 1 is located on the inner wall of the cap holding box 100 and above the end of the support plate 300, and is used to apply a pushing force extending radially along the cap separating plate 200 to caps with incorrect posture in the work station groove 400, thereby causing the caps with incorrect posture to slide down quickly. The cap-blocking mechanism 2 is located on the cap-distributing plate 200 and has multiple cap-guided channels that extend radially along the cap-distributing plate and connect with the work station slots one by one. The cap-guided channels guide caps with unqualified postures so that they can slide down along the set trajectory, thereby reducing interference with other caps.

[0039] Specifically, the cap rejection mechanism 1 is a first air nozzle fixed to the inner wall of the cap container 100. The outlet of the first air nozzle is radially positioned towards the cap container 100, slightly higher than the top of the cap in its second posture and lower than the limiting plate 500. Air is blown through the first air nozzle towards caps with unacceptable postures to create a pushing force. When the cap posture is acceptable, the outlet of the first air nozzle, being higher than the top of the cap, cannot apply a pushing force. When the cap posture is unacceptable, the impact of the airflow quickly blows the unacceptable cap out of the work station slot 400. Caps freed from the work station slot 400 can quickly move away from their original work station slot and re-enter the work station slot at the lower end of the cap container 100 for posture adjustment. The structure is simple and the rejection efficiency is high.

[0040] Considering that the pressure of the external compressed air connected to the first air nozzle may be unstable, bottle caps with unqualified postures may not be properly rejected when they pass quickly through the cap rejection mechanism 1. Therefore, in this embodiment, two first air nozzles are provided at the end of the limiting plate 500 and are arranged circumferentially along the cap box. The distance between the outlets of the two first air nozzles is equal to the circumferential distance between adjacent workstation slots on the same circumferential surface, so as to avoid interference of the diffused airflow at the outlets of the two air nozzles.

[0041] Due to the limited space within the workstation slot, it's crucial to ensure the outlet air pressure of the first nozzle is sufficient to actuate the bottle cap while preventing interference between the nozzle and the cap. Therefore, a sufficient clearance must be maintained between the nozzle and the cap, while avoiding excessive increases in compressed air pressure that would raise costs. To address this, this embodiment optimizes the structure of the first nozzle, making its outlet diameter smaller than the inner tube diameter. This allows for airflow convergence, increasing airflow pressure and facilitating the rejection of caps with incorrect orientation. The increased airflow impact force also allows for a wider distance between the nozzle outlet and the cap, reducing the probability of interference.

[0042] The cap-blocking mechanism 2 includes multiple baffles 2-1 disposed on the upper surface of the cap-distributing plate 200 and extending radially along the cap-distributing plate 200. The baffles 2-1 are located between adjacent workstation slots 400, and adjacent baffles 2-1 form a cap-guiding channel, resulting in a simple structure. The top of the baffle 2-1 is higher than the top of the cap in its second posture, thereby protecting the correctly positioned caps within the cap-guiding channel. This allows the baffles 2-1 to better shield the diffused airflow from affecting surrounding caps, further reducing interference.

[0043] Two adjacent baffles 2-1 of different lengths and baffles of the same length at intervals form a cap-blocking mechanism 2 surrounded by baffles 2-1 of varying lengths. This enlarges the entrance to the cap guide channel, making it easier for caps to enter the workstation slot. One end of the baffle 2-1 near the axis of the cap-distributing plate 200 has an inclined surface 2-1-1 that slopes away from the axis of the cap-distributing plate 200 along its rotation direction. This prevents caps with incorrect posture from being interfered with by the baffle 2-1 as they slide down, allowing them to slide more smoothly and further improving cap rejection stability. The width of the baffle 2-1 increases progressively from the end near the axis of the cap-distributing plate 200 to the end away from the axis, making the two sides of the cap guide channel more parallel. This limits the entry of caps and allows them to extend radially along the cap-distributing plate, better adjusting their posture.

[0044] By improving the efficiency of removing bottle caps with unqualified postures, the overall bottle cap sorting efficiency and stability are improved. To further improve the stability of the sorting, the bottle cap sorter in this embodiment is also equipped with a bottle cap posture adjustment device 3. Inspired by the cap removal mechanism 1, the bottle cap posture adjustment device 3 in this embodiment is a second air nozzle fixed on the inner wall of the cap container 100. The second air nozzle is located near the end of the support plate 300, with the outlet facing downward and directly facing the side wall of the head end of the bottle cap with qualified posture in the work station slot 400. This provides assistance when the bottle cap loses the support of the support plate 300 and is about to adjust its posture, allowing it to quickly adjust from the second posture to the third posture.

[0045] Working principle: This embodiment uses fluid gas to quickly remove bottle caps with unqualified postures. Combined with baffle 2-1 to limit the trajectory of bottle caps entering and leaving, it enhances the efficiency of cap sorting, reduces the influence of diffusion airflow on other bottle caps, and at the same time, prevents bottle caps in the rejection station slot 400 from affecting other bottle caps with normal postures. In addition, a bottle cap posture adjustment device 3 is added to accelerate the adjustment of bottle cap posture and improve stability.

[0046] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bottle cap rejection device, characterized in that: The device includes a cap-removing mechanism (1) and a cap-blocking mechanism (2). The cap-removing mechanism (1) is located on the inner wall of the cap container (100) and above the end of the support plate (300). It is adapted to apply a thrust extending radially along the cap-separating plate (200) to caps with unqualified posture in the work station slot (400). The cap-blocking mechanism (2) is located on the cap-separating plate (200) and has multiple cap-guided channels extending radially along the cap-separating plate (200) and connecting one by one with the work station slot (400). The cap-guided channels are adapted to guide caps with unqualified posture to slide down along a set trajectory.

2. The bottle cap rejection device according to claim 1, characterized in that: The cap-removing mechanism (1) is a first air nozzle fixed on the inner wall of the cap container (100). The outlet of the first air nozzle is arranged radially toward the cap container (100). The thrust is generated by blowing air toward the cap with unqualified posture through the first air nozzle.

3. The bottle cap rejection device according to claim 2, characterized in that: The first air nozzle is provided in at least two and located at the end of the limiting plate (500), and is arranged circumferentially along the cover box.

4. The bottle cap rejection device according to claim 2, characterized in that: The outlet diameter of the first air nozzle is smaller than the inner tube diameter of the first air nozzle.

5. A bottle cap rejection device according to any one of claims 1 to 4, characterized in that: The capping mechanism (2) includes a plurality of baffles (2-1) disposed on the upper surface of the capping plate (200) and extending radially along the capping plate (200). The baffles (2-1) are located between adjacent work station slots (400), and adjacent baffles (2-1) form the capping guide channel.

6. The bottle cap rejection device according to claim 5, characterized in that: The top of the baffle (2-1) is higher than the top of the bottle cap in the second posture.

7. A bottle cap rejection device according to claim 5, characterized in that: Two adjacent baffles (2-1) have different lengths and baffles (2-1) that are spaced apart have the same length, forming a baffle mechanism (2) surrounded by baffles (2-1) that are spaced apart by one long and one short.

8. A bottle cap rejection device according to claim 7, characterized in that: The baffle (2-1) has an inclined surface (2-1-1) at the end near the axis of the cover plate (200) that slopes away from the axis of the cover plate (200).

9. A bottle cap rejection device according to claim 7, characterized in that: The width of the baffle (2-1) increases sequentially from the end closer to the axis of the sub-cover plate (200) to the end farther away from the axis of the sub-cover plate (200).

10. A lid feeder, characterized in that: The device includes a bottle cap posture adjustment device (3) and a bottle cap rejection device as described in any one of claims 1 to 9. The bottle cap posture adjustment device (3) is a second air nozzle fixed on the inner wall of the cap container (100). The outlet of the second air nozzle is set downward and faces the side wall of the bottle cap head end that is in a qualified posture in the work station slot (400).

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