A packaging capping device with integrated checkweighing and rejection function

By introducing damping telescopic components and clamping detection components into the packaging lid sealing device, the problem of inaccurate weight detection caused by vibration is solved, and a more efficient and reliable lid installation and sealing process is achieved.

CN224279709UActive Publication Date: 2026-05-26GUANGZHOU FULAITE INTELLIGENT MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU FULAITE INTELLIGENT MFG CO LTD
Filing Date
2025-08-08
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing packaging capping devices suffer from reduced accuracy in cap weight detection due to vibration, affecting capping quality and production process stability.

Method used

By employing damped telescopic components and clamping detection components, and through gas damping and limiting functions, the impact of vibration on weight detection is reduced, thereby improving the stability and accuracy of the detection components.

Benefits of technology

It significantly improves the quality and stability of barrel lid installation, ensures smooth capping process, and enhances the efficiency and reliability of packaging production lines.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of packaging lid sealing devices, and more particularly to a packaging lid sealing device with integrated checkweighing and rejection function. It includes a robotic arm and a fixed base assembly. A damping telescopic assembly is fixedly connected to the lower end of the fixed base assembly, and a clamping detection assembly is fixedly connected to the lower end of the damping telescopic assembly. The damping telescopic assembly includes a cylindrical shell, with a movable rod slidably connected to the inner side of the shell. A rubber sealing ring is fixedly connected to the upper end of the movable rod, and a spring is sleeved on the outer side of the movable rod. An air storage groove is opened on the inner side of the cylindrical shell, with a limit post fixedly connected to the upper end of the air storage groove. An exhaust port is opened near the upper end of the cylindrical shell, and a silicone duckbill valve is fixedly connected to the inner side of the cylindrical shell near the lower end. A slow-flow hole is opened inside the silicone duckbill valve. In this utility model, the device effectively reduces the impact of vibration on the weight detection of the lid, quickly stabilizes the position of the detection component, and significantly improves the speed and accuracy of weight measurement.
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Description

Technical Field

[0001] This utility model relates to the technical field of packaging capping devices, specifically a packaging capping device with integrated checkweighing and rejection function. Background Technology

[0002] A packaging capping device is a piece of equipment used in automated packaging production lines. Its main function is to accurately place and firmly press the caps of packaging barrels into the openings of the barrels to ensure the sealing and integrity of the packaging. This device usually integrates multiple functions, such as automatic capping, precise positioning, capping, and quality inspection. It can effectively improve packaging efficiency, reduce manual intervention, and ensure the stability and consistency of packaging quality. It is widely used in food, beverage, pharmaceutical, and chemical industries and is an indispensable and important component of modern automated packaging production lines.

[0003] The integrated checkweighing and rejection function is a packaging lid sealing device used in automated packaging production lines. It integrates the functions of sealing and checkweighing. During the packaging process, the device first uses a mechanical structure to firmly press the lid of the packaging drum to ensure the sealing and integrity of the packaging.

[0004] While existing packaging capping devices are equipped with cap weight detection functions, they may be affected by factors such as vibration during actual operation, leading to a decrease in weighing accuracy. This vibration may originate from the operation of the equipment itself, other mechanical actions on the production line, or instability in the entire production environment. This decrease in accuracy directly affects the accuracy of cap weight detection, thereby affecting capping quality and subsequent production processes. Therefore, to address the above issues, a packaging capping device integrating checkweighing rejection function is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a packaging capping device with integrated checkweighing and rejection functions to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A packaging capping device with integrated checkweighing and rejection function includes a robotic arm and a fixed base assembly. A damping telescopic component is fixedly connected to the lower end of the fixed base assembly, and a clamping detection component is fixedly connected to the lower end of the damping telescopic component. The damping telescopic component includes a cylindrical shell, a movable rod slidably connected to the inner side of the cylindrical shell, a rubber sealing ring fixedly connected to the upper end of the movable rod, and a spring sleeved on the outer side of the movable rod. An air storage groove is formed on the inner side of the cylindrical shell, a limit post is fixedly connected to the upper end of the air storage groove, an exhaust port is formed near the upper end of the cylindrical shell, and a silicone duckbill valve is fixedly connected to the inner side of the cylindrical shell near the lower end. A slow-flow hole is formed on the inner side of the silicone duckbill valve. The outer side of the rubber sealing ring is fitted against the inner side of the air storage groove. The upper end of the spring is fixedly connected to the movable rod, and the lower end of the spring is fixedly connected to the cylindrical shell.

[0008] As a further optimization of this utility model, the fixed base assembly includes a top plate, and a fixed base is fixedly connected to the front end of the top plate. The top plate is fixedly connected to the fixed plate by bolts.

[0009] As a further optimization of this utility model, the front end of the fixed base is fixedly connected to the robotic arm, the fixed plate has a fixing opening on the inner side near the cylinder shell, and the fixed plate is welded to the outer side of the cylinder shell through a through hole.

[0010] As a further optimization of this utility model, the clamping detection component includes a partition, and a radar rangefinder is fixedly connected to the upper end of the partition, with the center of the radar rangefinder aligned with the center of the fixed disk.

[0011] As a further optimization of this utility model, the partition plate has an installation hole on its inner side, the partition plate is fixedly connected to the chuck by screws, and the upper end of the partition plate is fixedly connected to the bottom end of the movable rod.

[0012] As a further optimization of this utility model, the bottom end of the limiting post is flush with the bottom end of the exhaust port, the exhaust port is connected to the air storage tank, and the exhaust port is located at the upper end of the movable rod.

[0013] As a further optimization of this utility model, the silicone duckbill valve is connected to the air storage tank, the silicone duckbill valve is located at the lower end of the rubber sealing ring, and the inner side of the silicone duckbill valve is connected to the slow flow hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, by setting up a damping telescopic component and a clamping detection component, the device effectively reduces the impact of vibration on the weight detection of the barrel lid through gas damping and limiting functions, quickly stabilizes the position of the detection component, and significantly improves the speed and accuracy of weight measurement. This design not only improves the quality and stability of barrel lid installation, but also ensures the smooth progress of the subsequent capping process, thereby improving the efficiency and reliability of the entire packaging production line. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the fixed base assembly structure of this utility model;

[0018] Figure 3 This is a cross-sectional structural diagram of the damping telescopic component of this utility model;

[0019] Figure 4 This is a schematic diagram of the fixed disk structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the cylindrical shell structure of this utility model;

[0021] Figure 6 This utility model Figure 5 A schematic diagram of the structure at point A.

[0022] In the picture: 1. Robotic arm;

[0023] 2. Fixing base assembly; 21. Top plate; 22. Fixing base; 23. Bolt; 24. Fixing plate;

[0024] 3. Damping telescopic assembly; 31. Cylinder shell; 32. Movable rod; 33. Rubber sealing ring; 34. Spring; 35. Limiting post; 36. Exhaust port; 37. Air storage tank; 38. Silicone duckbill valve; 39. Flow retardant hole;

[0025] 4. Clamping detection assembly; 41. Partition plate; 42. Radar rangefinder; 43. Screw; 44. Chuck. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] Please see Figures 1-6 This utility model provides a technical solution:

[0029] A packaging capping device with integrated checkweighing and rejection function includes a robotic arm 1 and a fixed base assembly 2. A damping telescopic assembly 3 is fixedly connected to the lower end of the fixed base assembly 2, and a clamping detection assembly 4 is fixedly connected to the lower end of the damping telescopic assembly 3. The damping telescopic assembly 3 includes a cylindrical shell 31, a movable rod 32 is slidably connected to the inner side of the cylindrical shell 31, a rubber sealing ring 33 is fixedly connected to the upper end of the movable rod 32, a spring 34 is sleeved on the outer side of the movable rod 32, an air storage groove 37 is opened on the inner side of the cylindrical shell 31, a limit post 35 is fixedly connected to the upper end of the air storage groove 37, an exhaust port 36 is opened on the upper end of the cylindrical shell 31, a silicone duckbill valve 38 is fixedly connected to the inner side of the cylindrical shell 31 near the lower end, a slow flow hole 39 is opened on the inner side of the silicone duckbill valve 38, the outer side of the rubber sealing ring 33 is in contact with the inner side of the air storage groove 37, the upper end of the spring 34 is fixedly connected to the movable rod 32, and the lower end of the spring 34 is fixedly connected to the cylindrical shell 31.

[0030] As a further implementation of this solution, the fixed base assembly 2 includes a top plate 21, a fixed base 22 is fixedly connected to the front end of the top plate 21, the top plate 21 is fixedly connected to the fixed plate 24 by bolts 23, the front end of the fixed base 22 is fixedly connected to the robotic arm 1, the fixed plate 24 has a fixing port on the inner side near the cylindrical shell 31, and the fixed plate 24 is welded to the outer side of the cylindrical shell 31 through the through hole. Through the above settings, the overall structural stability of the device is enhanced, and it is also convenient for installation and maintenance.

[0031] As a further implementation of this solution, the clamping detection component 4 includes a partition 41, with a radar rangefinder 42 fixedly connected to the upper end of the partition 41. The center of the radar rangefinder 42 is aligned with the center of the fixed plate 24. An installation hole is provided on the inner side of the partition 41. The partition 41 is fixedly connected to the chuck 44 by screws 43. The upper end of the partition 41 is fixedly connected to the bottom end of the movable rod 32. With the above settings, the bucket lid can be clamped. At the same time, the clamping detection component 4 can detect the distance that the clamping detection component 4 moves downward due to the weight of the bucket lid, thus achieving the effect of detecting the weight of the bucket lid.

[0032] As a further implementation of this solution, the bottom end of the limiting post 35 is flush with the bottom end of the exhaust port 36, the exhaust port 36 is connected to the air storage tank 37, the exhaust port 36 is located at the upper end of the movable rod 32, the silicone duckbill valve 38 is connected to the air storage tank 37, the silicone duckbill valve 38 is located at the lower end of the rubber sealing ring 33, and the inner side of the silicone duckbill valve 38 is connected to the slow flow hole 39. Through the above settings, not only is the instability of the movable rod 32 caused by vibration reduced, but the speed and accuracy of weight measurement are also improved, ensuring the smooth progress of the bucket lid installation process.

[0033] Workflow: When installing the bucket lid, the robotic arm 1 is controlled to move the fixed base assembly 2, the damping telescopic assembly 3, and the clamping detection assembly 4 as a whole. When the chuck 44 is aligned with the bucket lid, the chuck 44 is controlled by the existing battery and Bluetooth to separate the chuck jaws and surround the bucket lid. The chuck jaws are then clamped to the bucket lid. After clamping, the bucket lid is moved upward. After moving upward a certain distance, it is paused for three seconds to stabilize the bucket lid. The weight of the bucket lid is then detected. If the weight is qualified, the bucket lid is aligned with the bucket body and then the bucket lid is placed on the bucket body.

[0034] When detecting the weight of the bucket lid, after the lid is suspended, its weight will pull the clamping detection component 4 to move downwards a certain distance. The clamping detection component 4 will drive the movable rod 32 to move downwards. The movable rod 32 moves downwards against the friction between the movable rod 32, the rubber sealing ring 33 and the cylindrical shell 31. The friction between the movable rod 32, the rubber sealing ring 33 and the cylindrical shell 31 is measured multiple times to obtain a fixed value. According to Hooke's Law, the spring constants of the two springs 34 are the same. The distance between the radar rangefinder 42 and the fixed plate 24 is detected. The spring constant of the spring 34 is multiplied by the distance to obtain the spring force value. The spring force value is proportional to the weight. The weight of the bucket lid can be obtained by measuring the spring force value and the friction between the friction force.

[0035] To reduce the impact of vibration on the accuracy of lid quality testing, when the movable rod 32 moves inside the air storage tank 37, the rubber sealing ring 33 seals the space between the cylinder shell 31 and the cylinder shell 31. This allows gas at the upper end of the rubber sealing ring 33 to flow out from the exhaust port 36, effectively venting the air. The limiting post 35 limits the movement of the movable rod 32, controlling its distance when the lid is placed on. Gas at the lower end of the spring 34 flows out from the slow-flow hole 39 in the silicone duckbill valve 38. The small diameter of the slow-flow hole 39 dampens the gas, reducing instability of the movable rod 32 due to vibration and improving the speed and accuracy of lid weight measurement. The silicone duckbill valve 38 guides and restricts the gas flow. When the movable rod 32 moves upward, external gas quickly flows into the air storage tank 37 from inside the silicone duckbill valve 38, increasing the speed of the movable rod 32's reset and facilitating subsequent testing.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A packaging capping device integrating checkweighing and rejection functions, comprising a robotic arm (1) and a fixed base assembly (2), characterized in that: The lower end of the fixed base assembly (2) is fixedly connected to a damping telescopic assembly (3), and the lower end of the damping telescopic assembly (3) is fixedly connected to a clamping detection assembly (4). The damping telescopic assembly (3) includes a cylindrical shell (31), a movable rod (32) is slidably connected to the inner side of the cylindrical shell (31), a rubber sealing ring (33) is fixedly connected to the upper end of the movable rod (32), a spring (34) is sleeved on the outer side of the movable rod (32), an air storage groove (37) is opened on the inner side of the cylindrical shell (31), a limit post (35) is fixedly connected to the upper end of the air storage groove (37), an exhaust port (36) is opened on the upper end of the cylindrical shell (31), a silicone duckbill valve (38) is fixedly connected to the inner side of the cylindrical shell (31) near the lower end, a slow flow hole (39) is opened on the inner side of the silicone duckbill valve (38), the outer side of the rubber sealing ring (33) is in contact with the inner side of the air storage groove (37), the upper end of the spring (34) is fixedly connected to the movable rod (32), and the lower end of the spring (34) is fixedly connected to the cylindrical shell (31).

2. The packaging capping device with integrated checkweighing and rejection function according to claim 1, characterized in that: The mounting bracket assembly (2) includes a top plate (21), a mounting bracket (22) is fixedly connected to the front end of the top plate (21), and the top plate (21) is fixedly connected to the mounting plate (24) by bolts (23).

3. The packaging capping device with integrated checkweighing and rejection function according to claim 2, characterized in that: The front end of the fixed base (22) is fixedly connected to the robotic arm (1), and the fixed plate (24) has a fixed opening on the inner side near the cylindrical shell (31). The fixed plate (24) is welded to the outer side of the cylindrical shell (31) through the through hole.

4. The packaging capping device with integrated checkweighing and rejection function according to claim 1, characterized in that: The clamping detection component (4) includes a partition (41), and a radar rangefinder (42) is fixedly connected to the upper end of the partition (41). The center of the radar rangefinder (42) is aligned with the center of the fixed disk (24).

5. A packaging capping device with integrated checkweighing and rejection function according to claim 4, characterized in that: The partition (41) has an installation hole on its inner side. The partition (41) is fixedly connected to the chuck (44) by screws (43). The upper end of the partition (41) is fixedly connected to the bottom end of the movable rod (32).

6. The packaging capping device with integrated checkweighing and rejection function according to claim 1, characterized in that: The bottom end of the limiting post (35) is flush with the bottom end of the exhaust port (36), the exhaust port (36) is connected to the air storage tank (37), and the exhaust port (36) is located at the upper end of the movable rod (32).

7. A packaging capping device with integrated checkweighing and rejection function according to claim 1, characterized in that: The silicone duckbill valve (38) is connected to the air storage tank (37). The silicone duckbill valve (38) is located at the lower end of the rubber sealing ring (33). The inner side of the silicone duckbill valve (38) is connected to the slow flow hole (39).