Cap discharging device for inner caps of cup-mounted pull ring caps
By designing a lid-dispensing device, the inner lids are fed into the lid-dispensing port in an orderly manner and monitored by infrared sensors. This solves the problem of difficulty in grasping the inner lids caused by disordered placement, and achieves efficient grasping of the inner lids and improves production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI BAISHIJIA PACKING CO LTD
- Filing Date
- 2025-03-20
- Publication Date
- 2026-04-21
AI Technical Summary
During the production of inner caps for cup-shaped pull-tab lids, the dried inner caps are placed haphazardly on the conveyor belt, making it difficult for the robotic arm to pick them up efficiently, thus affecting production efficiency.
A lid-dispensing device for inner lids of cup-shaped pull-ring caps was designed, including a conveyor belt, a lid-dispensing plate, a lid-dispensing arm, and an infrared sensor. The lid-dispensing arm drives the lid-pushing plate to move back and forth, orderly feeding the inner lids into the lid-dispensing port. With the help of infrared sensor monitoring and robotic arm gripping, synchronous gripping is achieved.
This improved the efficiency of inner cover distribution and gripping, enhanced the automation and efficiency of the production process, and ensured that the robotic arm could efficiently complete the inner cover gripping task.
Smart Images

Figure CN224147063U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cup pull-ring cap production technology, and in particular to a cap arrangement device for the inner cap of a cup pull-ring cap. Background Technology
[0002] For cans used as containers for beverages, food, etc., a retaining lid type can lid is used, which is opened by a pull ring. Such a can lid has the following structure: by lifting the finger hook part of the pull ring, which is fixed to the panel by rivets, a lever action is created, causing a part of the panel to break along the score line, thus opening the panel.
[0003] Pull-ring caps consist of an inner cap and an outer cap. The inner cap is pressed into the outer cap to complete the assembly process. During the production of the inner cap of the pull-ring cap, the inner cap, after the sealant has dried, continues to be conveyed via a conveyor belt. A robotic arm picks up the inner cap and sends it to the assembly equipment. Before picking it up, the inner caps on the conveyor belt are placed in an disordered manner, making it difficult for the robotic arm to pick them up. Therefore, a cap-arranging device for cup-shaped pull-ring cap inner caps is needed to solve the above problem. Utility Model Content
[0004] To address the aforementioned issues, this utility model provides a lid-arranging device for inner lids of cup-shaped pull-ring caps. This device can push disordered inner lids into a row of lid openings through the lid-arranging assembly, facilitating the simultaneous grasping of multiple inner lids by a robotic arm and improving production efficiency.
[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:
[0006] A lid-laying device for a cup-shaped pull-ring cap includes a conveyor belt. A lid-laying plate is fixedly installed on the output end of the conveyor belt and attached to the surface of the belt. A row of lid-laying openings is opened on the side wall of the lid-laying plate along the width direction of the conveyor belt. The diameter of the lid-laying openings is the same as the diameter of the inner cap. A lid-laying arm that can reciprocate along the width direction is spanned across the conveyor belt. A plurality of push-cap plates adapted to the row of lid-laying openings are fixedly connected to the bottom of the lid-laying arm. An infrared sensor is installed on the inner wall of the tail end of the lid-laying opening.
[0007] Preferably, a fixing plate is fixedly installed on both sides of the conveyor belt frame, and the two ends of the cover arm pass through the fixing plate on the corresponding side. A cover assembly that can drive the cover arm to move back and forth is also installed on one side of the frame.
[0008] Preferably, the cover assembly includes a mounting plate fixedly installed on one side of the frame, a motor is mounted on the mounting plate, a cam is fixed to the output end of the motor, a roller that abuts against the cam is rotatably connected to the corresponding end of the cover arm, and a spring is elastically installed at the other end of the cover arm.
[0009] Preferably, a cylinder is installed in the middle of the cover arm, a connecting arm is fixedly connected to the telescopic end of the cylinder, a row of telescopic plates is fixedly connected to the bottom of the connecting arm, and a telescopic groove is provided at the front end of the push cover plate for the corresponding telescopic plates to extend and retract.
[0010] Preferably, both sides of the cover plate are fixed with oblique guide edges, an arc-shaped convex edge is provided between the entrances of adjacent cover openings, and the front end of the telescopic plate is rounded.
[0011] Preferably, the top of the drain opening is covered with a top cover, and a limiting plate extending out of the drain opening is fixed to the front end of the top cover.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. By installing rows of lid openings, lid assembly, and multiple lid pushers, the dried inner lids are conveyed by a conveyor belt and gathered in front of the lid assembly plate. The motor is started to drive the cam to rotate. Due to the action of the spring, the rollers of the lid assembly arm always contact the cam and rotate with the cam. The lid assembly arm drives multiple lid pushers to move back and forth, pushing the gathered inner lids apart. With the help of the belt conveyor, the inner lids are sent into the rows of lid openings. The infrared sensor can detect whether there are inner lids at the end of the lid opening, and then cooperate with the robot arm to complete the synchronous gripping process, which greatly improves production efficiency.
[0014] 2. By installing multiple telescopic plates, during the reciprocating movement of multiple push-cover plates, the cylinder is activated to drive the connecting arm to move, thereby driving the multiple telescopic plates to extend and retract back and forth, which can be inserted into the collected inner cover, further improving the cover separation efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a top view of the outlet of the present invention;
[0017] Figure 3 This is a front view of the multiple telescopic plates proposed in this utility model.
[0018] In the diagram: 1 Conveyor belt, 2 Row of cover plates, 3 Row of cover openings, 4 Top cover, 5 Limiting plate, 6 Inclined guide edge, 7 Mounting plate, 8 Cam, 9 Roller, 10 Fixing plate, 11 Spring, 12 Row of cover arms, 13 Push cover plate, 14 Cylinder, 15 Telescopic plate, 16 Connecting arm, 17 Arc-shaped convex edge, 18 Infrared sensor. Detailed Implementation
[0019] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0021] Reference Figure 1-3 A lid-laying device for inner lids of cup-shaped pull-ring caps includes a conveyor belt 1. A lid-laying plate 2, which is fixedly installed on the output end of the conveyor belt 1 and attached to the surface of the belt, is provided. A row of lid-laying openings 3 are opened on the side wall of the lid-laying plate 2 along the width direction of the conveyor belt 1. The diameter of the lid-laying openings 3 is the same as the diameter of the inner lid. A lid-laying arm 12, which can reciprocate along its width direction, is spanned across the conveyor belt 1. A plurality of push-lid plates 13, which are adapted to the row of lid-laying openings 3, are fixedly connected to the bottom of the lid-laying arm 12. An infrared sensor 18 is installed on the inner wall of the tail end of the lid-laying opening 3. The infrared sensor 18 can detect whether there is an inner lid at the tail end of the lid-laying opening 3, and then cooperate with the robot arm to complete the synchronous grasping process, which greatly improves production efficiency.
[0022] Furthermore, fixed plates 10 are fixedly installed on both sides of the conveyor belt 1, and the two ends of the cover arm 12 pass through the corresponding fixed plates 10. A cover assembly that can drive the cover arm 12 to move back and forth is also installed on one side of the frame.
[0023] Specifically, the cover assembly includes a mounting plate 7 fixedly installed on one side of the frame. A motor is mounted on the mounting plate 7, and a cam 8 is fixed to the output end of the motor. The corresponding end of the cover arm 12 is rotatably connected to a roller 9 that abuts against the cam 8. A spring 11 is elastically installed at the other end of the cover arm 12. When the motor is started, it drives the cam 8 to rotate. Because the roller 9 of the cover arm 12 always abuts against the cam 8 under the action of the spring 11, it rotates with the cam 8. The cover arm 12 drives multiple push plates 13 to move back and forth, pushing the collected inner covers separately. With the help of the belt conveyor, the inner covers are sent into a row of cover openings 3.
[0024] Furthermore, a cylinder 14 is installed in the middle of the cover arm 12. A connecting arm 16 is fixedly connected to the telescopic end of the cylinder 14. A row of telescopic plates 15 is fixedly connected to the bottom of the connecting arm 16. The front end of the push cover plate 13 is provided with a telescopic groove for the corresponding telescopic plates 15 to extend and retract. During the reciprocating movement of multiple push cover plates 13, the cylinder 14 is activated to drive the connecting arm 16 to move, thereby driving multiple telescopic plates 15 to extend and retract back and forth, which can be inserted into the collected inner cover, further improving the cover separation efficiency.
[0025] Furthermore, both sides of the cover plate 2 are fixed with inclined guide edges 6. The inner covers of the belt edge converge towards the middle through the inclined guide edges 6. An arc-shaped protruding edge 17 is provided between the entrances of adjacent cover openings 3. The front end of the telescopic plate 15 is rounded to facilitate the cover separation process after contact with the inner cover.
[0026] Furthermore, a top cover 4 is provided on the top of the cover opening 3, and a limiting plate 5 extending out of the cover opening 3 is fixed to the front end of the top cover 4 to prevent the inner covers from stacking after they are arranged in the cover opening 3.
[0027] After drying, the inner covers are conveyed by the conveyor belt 1 and gathered in front of the cover plate 2. The motor is started to drive the cam 8 to rotate. Because the cover arm 12 is under the action of the spring 11, the roller 9 always abuts against the cam 8 and rotates with the cam 8. The cover arm 12 drives multiple push plates 13 to move back and forth, pushing the gathered inner covers apart. With the help of the belt conveyor, the inner covers are sent into a row of cover openings 3. The infrared sensor 18 can detect whether there are inner covers at the end of the cover opening 3, and then cooperate with the robot arm to complete the synchronous gripping process, which greatly improves production efficiency.
[0028] During the reciprocating movement of multiple push-cover plates 13, the starting cylinder 14 drives the connecting arm 16 to move, which in turn drives multiple telescopic plates 15 to extend and retract back and forth, which can be inserted into the collected inner cover, further improving the cover separation efficiency.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 device for ejecting the inner caps of cup-pull ring caps, comprising a conveyor belt (1), characterized in that, The output end of the conveyor belt (1) is fixedly installed with a cover plate (2) attached to the surface of the belt. The side wall of the cover plate (2) is provided with a row of cover openings (3) along the width direction of the conveyor belt (1). The diameter of the cover opening (3) is the same as the diameter of the inner cover. A cover arm (12) that can move back and forth along its width direction is spanned across the conveyor belt (1). The bottom of the cover arm (12) is fixedly connected with a plurality of push plates (13) adapted to a row of cover openings (3). An infrared sensor (18) is installed on the inner wall of the tail end of the cover opening (3).
2. A cup pull-tab inner lid ejection device according to claim 1, wherein, The conveyor belt (1) has fixed plates (10) fixedly installed on both sides of the frame. The two ends of the cover arm (12) pass through the corresponding fixed plates (10). A cover assembly that can drive the cover arm (12) to move back and forth is also installed on one side of the frame.
3. The lid-dispensing device for the inner lid of a cup-shaped pull-ring cap according to claim 2, characterized in that, The cover assembly includes a mounting plate (7) fixedly installed on one side of the frame. A motor is mounted on the mounting plate (7). A cam (8) is fixed at the output end of the motor. A roller (9) that abuts the cam (8) is rotatably connected to the corresponding end of the cover arm (12). A spring (11) is elastically installed at the other end of the cover arm (12).
4. A cup pull-tab inner lid ejection device according to claim 1, wherein, A cylinder (14) is installed in the middle of the cover arm (12). A connecting arm (16) is fixedly connected to the telescopic end of the cylinder (14). A row of telescopic plates (15) is fixedly connected to the bottom of the connecting arm (16). The front end of the push cover plate (13) is provided with a telescopic groove for the corresponding telescopic plates (15) to extend and retract.
5. A cup pull-tab inner lid ejection device according to claim 4, wherein, Both sides of the cover plate (2) are fixed with inclined guide edges (6), and an arc-shaped protruding edge (17) is provided between the entrances of adjacent cover openings (3). The front end of the telescopic plate (15) is rounded.
6. A cup pull-tab inner lid ejection device according to claim 1, wherein, The top of the outlet (3) is covered with a top cover (4), and the front end of the top cover (4) is fixed with a limiting plate (5) extending out of the outlet (3).