Bottle cap inner plug detection mechanism

Abstract

The utility model relates to a bottle cap inner plug detection mechanism, and aims to solve the problems of inaccurate bottle cap inner plug detection and low efficiency. The mechanism comprises a vibration disc feeding machine, a PPU mechanical arm and a cover inner plug detection assembly. The feeding of the vibration disc is divided into two parts through the material channel, the PPU manipulator puts the cover into the mold cavity of the detection assembly mold, the ejector pin assembly positions and supports the cover, and the height difference of the inner plug is used for detection through the optical fiber sensor. When no inner plug exists, the thread cylinder is ejected out, the PPU moves defective products and supplements materials, and after the products are qualified, caps are carried to rotary table bottles. The device has the advantages of accurate detection, high automation degree, timely defective product treatment, stable structure and the like, effectively improves the product packaging quality and the production efficiency, and is suitable for various bottle cap inner plug detection scenes.

Description

Technical Field

[0001] This utility model belongs to the field of cap packaging, and in particular relates to a bottle cap inner plug detection mechanism. Background Technology

[0002] In the bottle cap packaging industry, the integrity of the inner cap plug plays a crucial role in the product's sealing performance and quality. Currently, cap packaging material manufacturers cannot guarantee that every cap plug is intact. During the production process, due to frequent vibrations during vibratory feeding and material turnover, plug separation is common. Existing inspection methods largely rely on manual labor, which is not only inefficient but also highly susceptible to subjective factors, making accuracy difficult to guarantee. Prolonged manual inspection can lead to fatigue, increasing misjudgments and omissions, allowing defective caps to enter subsequent processes, thus affecting overall product quality and increasing scrap rates and production costs. Furthermore, the lack of efficient, automated, and accurate inner cap plug inspection equipment has become a significant factor restricting the bottle cap packaging industry from improving production efficiency and product quality. Utility Model Content

[0003] The purpose of this utility model is to provide a bottle cap inner plug detection mechanism, aiming to solve the problems existing in the background art. To achieve this purpose, the technical solution adopted by this utility model is:

[0004] A bottle cap inner plug detection mechanism includes a vibratory feeder, a PPU robot, and a cap inner plug detection component. The PPU robot is used to put the caps from the vibratory feeder into the cap inner plug detection component.

[0005] The cap inner plug detection assembly includes a mounting base component, a cap inner plug detection component, and an ejector pin component. The ejector pin component is mounted on the mounting base component, and the cap inner plug detection component is mounted on the ejector pin component. The ejector pin component is used for positioning and supporting the cap. The cap inner plug detection component determines whether the cap is qualified by measuring the height difference between the cap and the ejector pin component to determine whether the cap has an inner plug.

[0006] Preferably, the mounting base component includes a first base, a support plate, and a reinforcing rib. The support plate is mounted on the first base, the reinforcing rib is mounted on one side of the support plate, and the ejector pin component is mounted on the other side of the mounting plate.

[0007] Preferably, the ejector pin assembly includes a threaded cylinder mounting plate, a spring, a mold, a threaded cylinder, and an ejector rod. The mold is mounted on the head of the support plate, and ejector rods are symmetrically distributed inside the mold. The threaded cylinder mounting plate is mounted below the mold, and a threaded cylinder is mounted at the bottom of the threaded cylinder mounting plate. The threaded cylinder passes through the threaded cylinder mounting plate and is connected to the ejector rod. A spring is provided on the outside of the ejector rod, and symmetrically distributed cap inner plug detection components are provided on the surface of the mold.

[0008] Preferably, the lid inner plug detection component is a fiber optic sensor.

[0009] Preferably, a material detection photoelectric sensor is further provided on the top of the support plate. The material detection photoelectric sensor is used to detect whether there is a lid on the ejector rod.

[0010] Preferably, the PPU manipulator mechanism includes a servo motor, a PPU, a groove-shaped photoelectric sensor, a support column, a second base, a linear slide rail, a connecting plate, and a clamping cylinder. A support column is installed on the top of the second base, the PPU is installed at the head of the support column, a servo motor is arranged at the rear of the PPU, a groove-shaped photoelectric sensor and a linear slide rail are respectively arranged on the left and right sides of the opposite side of the servo motor, a connecting plate is installed at the tail of the linear slide rail, and a plurality of clamping cylinders are installed at the bottom of the connecting plate. The clamping cylinders are used to clamp the bottle caps.

[0011] The beneficial effects of the present utility model are as follows:

[0012] Precise detection and efficient screening: This lid inner plug detection mechanism utilizes the height difference (8 mm) generated by the presence or absence of the lid inner plug, and precisely detects through a fiber optic sensor, capable of quickly and accurately determining whether the lid inner plug is qualified. It effectively avoids problems such as product leakage and deterioration caused by the absence of the inner plug, greatly improves the qualification rate of product packaging, and reduces waste loss;

[0013] Highly automated operation process: Combining the vibration disk feeding, the one-to-two design of the material channel, and the automatic material taking, transfer, and placement operations of the PPU manipulator, a fully automated process from lid supply to detection, screening, and then discharging is achieved. It greatly reduces manual intervention, significantly improves production efficiency, reduces labor costs, and at the same time reduces errors and uncertainties brought by manual operations;

[0014] Timely defective product handling and replenishment mechanism: Once a lid without an inner plug is detected, the thread cylinder quickly ejects, and the PPU manipulator immediately discards the defective material and automatically performs a replenishment operation for re-detection. It ensures that the lids finally placed on the turntable bottles are all products with qualified inner plugs, guarantees the stability of product quality, and maintains the continuity of production;

[0015] Stable and reliable structural design: The mounting seat component is composed of a base, a support plate, and a reinforcing rib, providing a solid and stable support foundation for the entire detection mechanism. The layout of each component is reasonable and the connection is tight, ensuring the stable operation of the equipment during high-frequency detection operations, reducing the probability of equipment failures, extending the service life of the equipment, and reducing the equipment maintenance cost. Description of the Drawings

[0016] Figure 1 It is the overall schematic diagram provided by the embodiment of the present utility model;

[0017] Figure 2A schematic diagram of the PPU robotic arm structure provided for an embodiment of this utility model;

[0018] Figure 3 A schematic diagram of the cap inner plug detection component provided in this embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the cap inner plug detection component according to an embodiment of the present invention.

[0020] The following are the labeling elements in the figure:

[0021] 1. Vibratory feeder;

[0022] 2. PPU robotic arm; 21. Servo motor; 22. PPU; 23. Slotted photoelectric sensor; 24. Support column; 25. Second base; 26. Linear slide rail; 27. Connecting plate; 28. Clamping cylinder;

[0023] 3. Cap inner plug detection component;

[0024] 31. Mounting base component; 311. First base; 312. Support plate; 313. Reinforcing rib;

[0025] 32. Detection component inside the cap;

[0026] 33. Ejector pin assembly; 331. Threaded cylinder mounting plate; 332. Spring; 333. Mold; 334. Threaded cylinder; 335. Ejector rod;

[0027] 34. Photoelectric sensor for material detection. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. Conversely, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations. The terms "upper end," "lower end," "left side," "right side," "front end," "rear end," and similar expressions used herein refer to the positional relationship with reference to the accompanying drawings.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0032] like Figures 1-4 As shown, this utility model embodiment provides a bottle cap inner plug detection mechanism, including a vibratory feeder 1, a PPU robot 2, and a cap inner plug detection component 3. The PPU robot 2 is used to put the caps in the vibratory feeder 1 into the cap inner plug detection component 3.

[0033] The lid inner plug detection assembly 3 includes a mounting base component 31, a lid inner plug detection component 3, and a ejector pin component 33. The ejector pin component 33 is mounted on the mounting base component 31, and the lid inner plug detection component 3 is mounted on the ejector pin component 33. The ejector pin component 33 is used for positioning and supporting the lid. The lid inner plug detection component 3 determines whether the lid is qualified by the height difference between the lid and the ejector pin component 33 to determine whether the lid has an inner plug.

[0034] In this embodiment, the mounting base component 31 includes a first base 311, a support plate 312 and a reinforcing rib 313. The support plate 312 is mounted on the first base 311, the reinforcing rib 313 is mounted on one side of the support plate 312, and the ejector pin component 33 is mounted on the other side of the mounting plate.

[0035] In this embodiment, the ejector pin component 33 includes a threaded cylinder mounting plate 331, a spring 332, a mold 333, a threaded cylinder 334, and an ejector rod 335. The mold 333 is mounted on the head of the support plate 312. The ejector rods 335 are symmetrically distributed inside the mold 333. The threaded cylinder mounting plate 331 is mounted below the mold 333. The threaded cylinder 334 is mounted at the bottom of the threaded cylinder mounting plate 331. The threaded cylinder 334 passes through the threaded cylinder mounting plate 331 and is connected to the ejector rod 335. The spring 332 is provided on the outside of the ejector rod 335. The surface of the mold 333 is provided with symmetrically distributed cap inner plug detection components 32.

[0036] In this embodiment, the inner plug detection component 32 is an optical fiber sensor.

[0037] In this embodiment, a material detection photoelectric sensor 34 is also provided on the top of the support plate 312. The material detection photoelectric sensor 34 is used to detect whether there is a cover on the top rod 335.

[0038] In this embodiment, the PPU manipulator 2 mechanism includes a servo motor 21, a PPU 22, a slotted photoelectric sensor 23, a support column 24, a second base 25, a linear slide rail 26, a connecting plate 27, and clamping cylinders 28. The support column 24 is mounted on the top of the second base 25, and the PPU 22 is mounted on the head of the support column 24. The servo motor 21 is located on the rear side of the PPU 22. The slotted photoelectric sensor 23 and the linear slide rail 26 are located on the left and right sides opposite to the servo motor 21, respectively. The connecting plate 27 is mounted on the tail of the linear slide rail 26, and multiple clamping cylinders 28 are mounted on the bottom of the connecting plate 27. The clamping cylinders 28 are used to clamp bottle caps.

[0039] Working principle

[0040] Lid supply and initial preparation

[0041] The covers are fed in an orderly manner by a vibratory feeder 1, which moves the covers along the feed channel through its own vibration. The feed channel is designed with a two-part structure, which can simultaneously provide covers for two subsequent inspection processes. The PPU robot 2 plays a key role in material handling throughout the entire inspection process. During operation, the servo motor 21 drives the PPU 22 to move. During the movement, the slotted photoelectric sensor 23 is used to assist in positioning and ensure the accurate position of the PPU 22. The linear guide rail 26 ensures the smoothness and directionality of the PPU 22's movement. When the PPU 22 moves to the picking position, the clamping cylinder 28 at the bottom of the connecting plate 27 extends and precisely clamps the cover in the feed channel of the vibratory feeder 1.

[0042] Lid transfer and positioning

[0043] After the clamping cylinder 28 clamps the lid, the PPU robot arm 2, under the control of the servo motor 21, moves along the linear slide rail 26 to transfer the lid into the mold cavity 333 of the lid inner plug detection assembly 3. At this time, the push rods 335 symmetrically distributed inside the mold 333 are in their initial positions under the action of the spring 332, and the shaft end plane of the push rod 335 is ready to contact the inner plug plane of the lid to support the lid. At the same time, the material detection photoelectric sensor 34 located on the top of the support plate 312 starts to work, detecting whether there is a lid on the push rod 335. If a lid is detected, it means that the lid has been successfully placed on the push rod 335, and it is ready to proceed to the next step of inner plug detection.

[0044] Internal plug detection and judgment

[0045] When the cover is placed on the push rod 335, the presence or absence of an inner plug will cause a height difference (e.g., 8mm), while the PPU robot 2 maintains a consistent picking height each time. If the cover has an inner plug, it will be positioned higher, and the fiber optic sensor (cover inner plug detection component 32) mounted on the surface of the mold 333 will not be able to detect the bottom edge of the cover, thus determining it to be a qualified product. If the cover does not have an inner plug, it will sink deeper into the mold cavity, and the fiber optic sensor will be able to detect the bottom edge of the cover, thus determining that the cover does not have an inner plug.

[0046] Defective product handling and replenishment

[0047] When the fiber optic sensor determines that the cap has no inner plug, the threaded cylinder 334 starts working. The threaded cylinder 334 passes through the threaded cylinder mounting plate 331 and is connected to the ejector rod 335. The threaded cylinder 334 initiates an ejection action, causing the ejector rod 335 to move upward a certain distance. At this time, the PPU robot 2 moves again, and the clamping cylinder 28 removes the defective material (cap without an inner plug) from the mold cavity. Under the coordinated action of the servo motor 21 and the linear guide rail 26, it is transferred to the defective product storage box. Then, the PPU robot 2 returns to the material pick-up position in the material channel, clamps another cap, and transfers it into the mold cavity 333 for another inner plug detection. This cycle continues until a qualified cap is detected.

[0048] Qualified product output and subsequent process connection

[0049] Once the inner plug of the cap passes inspection, the PPU robot 2 transfers the cap to a bottle on a turntable (a component in the production equipment that connects to subsequent processes, such as the turntable used to transfer bottles in a filling and capping machine), preparing it for subsequent processes (such as capping). This completes the inner plug inspection and capping process for one cap. Throughout the process, all components work closely together to achieve efficient and accurate inspection and screening of the inner plug, ensuring the integrity of the inner plug during product packaging and improving product quality and production efficiency.

[0050] The above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. A bottle cap inner plug detection mechanism, characterized in that: The device includes a vibratory feeder, a PPU manipulator, and a cap plug detection assembly. The PPU manipulator is used to place the cap from the vibratory feeder into the cap plug detection assembly. The lid inner plug detection assembly includes a mounting base component, a lid inner plug detection component, and a ejector pin component. The ejector pin components are all mounted on the mounting base component, and the lid inner plug detection component is mounted on the ejector pin component. The ejector pin component is used for positioning and supporting the lid. The lid inner plug detection component determines whether the lid is qualified by the height difference between the lid and the ejector pin component to determine whether there is an inner plug.

2. The bottle cap inner plug detection mechanism according to claim 1, characterized in that: The mounting base component includes a first base, a support plate, and a reinforcing rib. The support plate is mounted on the first base, the reinforcing rib is mounted on one side of the support plate, and the ejector pin component is mounted on the other side of the support plate.

3. The bottle cap inner plug detection mechanism according to claim 2, characterized in that: The ejector pin assembly includes a threaded cylinder mounting plate, a spring, a mold, a threaded cylinder, and an ejector rod. The mold is mounted on the head of the support plate, and the ejector rods are symmetrically distributed inside the mold. The threaded cylinder mounting plate is mounted below the mold, and the threaded cylinder is mounted at the bottom of the threaded cylinder mounting plate. The threaded cylinder passes through the threaded cylinder mounting plate and is connected to the ejector rod. A spring is provided on the outer side of the ejector rod, and the mold surface is provided with symmetrically distributed cover inner plug detection components.

4. The bottle cap inner plug detection mechanism according to claim 3, characterized in that: The inner plug detection component of the cover is a fiber optic sensor.

5. The bottle cap inner plug detection mechanism according to claim 4, characterized in that: The top of the support plate is also equipped with a material detection photoelectric sensor, which is used to detect whether there is a cover on the top rod.

6. The bottle cap inner plug detection mechanism according to claim 5, characterized in that: The PPU robotic arm mechanism includes a servo motor, a PPU, a slotted photoelectric sensor, a support column, a second base, a linear slide rail, a connecting plate, and clamping cylinders. The support column is mounted on the top of the second base, and the PPU is mounted on the head of the support column. The servo motor is located on the rear side of the PPU. The slotted photoelectric sensor and the linear slide rail are located on the left and right sides opposite to the servo motor, respectively. The connecting plate is mounted on the tail of the linear slide rail, and multiple clamping cylinders are mounted on the bottom of the connecting plate. The clamping cylinders are used to clamp bottle caps.

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