Novel automatic cap sorter
By introducing aluminum foil detection sensors and telescopic elements into the automatic cap sorting machine, the problem of large equipment space occupation was solved, the integration of aluminum foil detection and rejection was realized, and production costs were reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHOUSHAN SHARK PHARMA MACHINERY
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-28
AI Technical Summary
Existing automatic cap sorting devices with cap-removing mechanisms are space-consuming and costly when detecting whether there is aluminum foil inside the cap.
A novel automatic cap sorting machine was designed, comprising a lifting mechanism, a cap rejection mechanism, and an aluminum foil detection sensor. The aluminum foil detection sensor detects whether there is aluminum foil inside the bottle cap, and the position of the transition slide is controlled by a telescopic element to realize the detection and rejection of aluminum foil, thereby reducing the space occupied by the equipment.
It enables aluminum foil detection while removing both front and back covers, reducing equipment space requirements, lowering production costs, and supporting multiple aluminum foil detection modes.
Smart Images

Figure CN224171820U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lid sorting equipment technology, specifically to a new type of automatic lid sorting machine. Background Technology
[0002] Aluminum foil sealing is a crucial step in the packaging process of pharmaceuticals, food, cosmetics, and other products. After bottling, bottle caps containing aluminum foil are screwed on, and then electromagnetic induction heating is used to seal the aluminum foil. However, during production, aluminum foil is often not placed inside the bottle cap, resulting in unsealed bottled products. Therefore, the inspection of aluminum foil on bottle caps is an essential testing procedure in the production of bottled products.
[0003] Chinese Patent Publication No. CN103754611B discloses an automatic cap sorting device with a reverse cap rejection mechanism. After the caps are conveyed by the lifting mechanism and the reverse cap rejection mechanism, the correct caps enter the next capping process through the sliding bar, while the reverse caps fall into the cap collecting hopper through the cap dropping hopper. This device also requires an aluminum foil detection mechanism before or after cap sorting to detect the presence of aluminum foil inside the caps, resulting in a large overall footprint and high production costs. Utility Model Content
[0004] To overcome the shortcomings of the prior art, this utility model provides a new type of automatic cap sorting machine, which solves the problem that current automatic cap sorting devices with reverse cap rejection mechanisms do not have aluminum foil detection.
[0005] The technical solution adopted in this utility model is as follows:
[0006] A novel automatic cap sorting machine includes a lifting mechanism and a cap rejection mechanism. The cap rejection mechanism includes a tray assembly, which comprises a tray and a transparent plate. An upper sliding strip, a middle sliding strip, and a lower sliding strip are sequentially installed at the lower part of the tray assembly. The machine also includes:
[0007] A transition slider is positioned between the middle slider and the lower slider.
[0008] The material discharge hopper is located below the middle slide bar and the transition slide bar;
[0009] The first telescopic element is mounted on the tray assembly and connected to the transition slide bar;
[0010] An aluminum foil detection sensor is located at the front end of the transition slider.
[0011] The front end of the aluminum foil detection sensor is provided with a stop block, and the stop block is equipped with a second telescopic element.
[0012] The block is made of polytetrafluoroethylene.
[0013] The distance between the tray and the transparent plate is adjustable.
[0014] The feed end of the pallet assembly is provided with a stop bar, the top of which is rotatably mounted on the side of the lifting mechanism, and the front end of which is provided with a limit bar.
[0015] The distance between the tray and the transparent plate is greater than the thickness of the bottle cap. The upper and lower sliders are installed on the tray, and the middle slider is installed on the transparent plate. The supporting surface of the upper slider has an inclined surface on the side near the tray.
[0016] Both the first and second telescopic elements are cylinders.
[0017] The beneficial effects of this utility model are:
[0018] During the process of rejecting both front and back caps, an aluminum foil detection sensor detects whether aluminum foil is installed in the front cap. When aluminum foil is present in the cap, the sensor transmits a signal to the control center. The control center then controls the first telescopic element to extend the transition slide bar, aligning it with the lower slide bar. The front cap then passes through the transition slide bar and lower slide bar to proceed to the next process. When there is no aluminum foil in the cap, the first telescopic element resets the transition slide bar, and the cap returns to the lifting mechanism via the hopper. This allows for the simultaneous rejection of both front and back caps and detection of aluminum foil on the cap. Multiple sensors can also be installed to detect the front and back sides of the aluminum foil or double-sheet aluminum foil, reducing the space occupied by the equipment. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the entire machine of this utility model.
[0020] Figure 2 This is a schematic diagram of the reverse cover rejection and aluminum foil detection of this utility model.
[0021] Figure 3 This is a schematic diagram of the bottom of the tray assembly of this utility model.
[0022] Figure 4 This is a schematic diagram of the upper slider of this utility model.
[0023] 1. Pallet plate; 2. Transparent plate; 3. Upper slide bar; 4. Middle slide bar; 5. Lower slide bar; 6. Drop hopper; 7. Transition slide bar; 8. No. 1 telescopic element; 9. Aluminum foil detection sensor; 10. Stop block; 11. No. 2 telescopic element; 12. Stop bar; 13. Limiting rod; 14. Inclined surface. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0025] In the embodiments, such as Figure 1 , Figure 2 , Figure 3As shown, a novel automatic cap sorting machine includes a lifting mechanism and a cap rejection mechanism. The cap rejection mechanism includes a tray assembly, which includes a tray 1 and a transparent plate 2. An upper sliding strip 3, a middle sliding strip 4, and a lower sliding strip 5 are sequentially installed on the lower part of the tray assembly. The machine also includes:
[0026] Transition slider 7 is positioned between middle slider 4 and lower slider 5;
[0027] The discharge hopper 6 is located below the middle slide bar 4 and the transition slide bar 7;
[0028] The first telescopic element 8 is mounted on the tray assembly and connected to the transition slide bar 7;
[0029] The aluminum foil detection sensor 9 is located at the front end of the transition slider 7.
[0030] During the process of rejecting both front and back caps, an aluminum foil detection sensor 9 detects whether aluminum foil is installed in the front cap. When aluminum foil is present in the cap, the aluminum foil detection sensor 9 transmits a signal to the control center. The control center controls the first telescopic element 8 to extend the transition slide 7, making the transition slide align with the lower slide. The front cap then passes through the transition slide and the lower slide to enter the next process. When there is no aluminum foil in the cap, the first telescopic element 8 drives the transition slide 7 to reset, and the cap returns to the lifting mechanism through the hopper. This allows for the detection of aluminum foil in the cap while rejecting both front and back caps. Of course, multiple sensors can also be set to detect the front and back sides of the aluminum foil or double aluminum foil, reducing the space occupied by the equipment.
[0031] In the embodiments, such as Figure 2 , Figure 3 As shown, the front end of the aluminum foil detection sensor 9 is provided with a stop block 10, and the stop block 10 is equipped with a second telescopic element 11. The second telescopic element 11 can drive the stop block 10 to block the bottle cap, ensuring that there is a certain distance between adjacent bottle caps, and ensuring that when the aluminum foil detection sensor 9 detects bottle caps, the bottle cap in front passes through the transition slide strip 7.
[0032] In this embodiment, the stop 10 is made of polytetrafluoroethylene. The stop 10 will not damage the surface of the bottle cap after it resets.
[0033] In the embodiments, such as Figure 1 , Figure 2 , Figure 3 As shown, the distance between the tray 1 and the transparent plate 2 is adjustable. A threaded rod is installed on the tray 1, passing through the transparent plate 2. Adjusting nuts for engaging with the threaded rod are provided at both ends of the transparent plate 2. By adjusting the distance between the tray 1 and the transparent plate 2, it can accommodate bottle caps of different sizes, making it highly versatile.
[0034] In the embodiments, such as Figure 2As shown, the feed end of the tray assembly is provided with a baffle 12, the top of which is rotatably mounted on the side of the lifting mechanism, and a limiting rod 13 is provided at the front end of the baffle 12. According to an automatic cap sorting device with a reverse cap rejection mechanism disclosed in Chinese Patent Publication No. CN103754611B, a baffle bar is provided above the upper slide bar 3. Due to the action of the baffle plate of the lifting mechanism, some bottle caps may enter the tray assembly from the highest point of the baffle plate. Since the bottle caps are arranged vertically at the feed inlet of the baffle bar, they may block the feed inlet of the baffle bar. The baffle 12 can prevent bottle caps from entering the tray assembly and blocking the feed inlet of the baffle bar.
[0035] In the embodiments, such as Figure 2 , Figure 3 , Figure 4 As shown, the distance between the tray 1 and the transparent plate 2 is greater than the thickness of the bottle cap. The upper slide bar 3 and the lower slide bar 5 are installed on the tray 1, and the middle slide bar 4 is installed on the transparent plate 2. The supporting surface of the upper slide bar 3 has an inclined surface 14 on the side near the tray 1. When the cap enters the tray assembly, because the center of gravity of the bottle cap is biased towards the cap surface, the cap surface contacts the inclined surface 14 of the upper slide bar 3, while the cap opening contacts the transparent plate 2. When the cap moves to the middle slide bar 4, the upper part of the cap surface contacts the tray 1, and the cap opening contacts the middle slide bar 4, allowing it to slide smoothly. However, when the cap enters the tray assembly, the cap opening contacts the inclined surface 14 of the upper slide bar 3, and the upper part of the cap surface contacts the transparent plate 2. When the cap moves to the middle slide bar 4, there is no support at the cap opening, so it falls into the hopper 6.
[0036] In the embodiments, such as Figure 3 As shown, both the first telescopic element 8 and the second telescopic element 11 are cylinders. Cylinders have high operating efficiency, stable operation, and are easy to install.
[0037] Obviously, the above embodiments of this utility model are merely illustrative examples and not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, these obvious variations or modifications derived from the essential spirit of this utility model still fall within the protection scope of this utility model.
Claims
1. A novel automatic cap sorting machine, comprising a lifting mechanism and a cap rejection mechanism, wherein the cap rejection mechanism comprises a tray assembly, the tray assembly comprising a tray (1) and a transparent plate (2), and an upper sliding strip (3), a middle sliding strip (4) and a lower sliding strip (5) are sequentially installed on the lower part of the tray assembly, characterized in that, Also includes: A transition slider (7) is positioned between the middle slider (4) and the lower slider (5); The discharge hopper (6) is located below the middle slide bar (4) and the transition slide bar (7); The first telescopic element (8) is set on the tray assembly and connected to the transition slide (7); An aluminum foil detection sensor (9) is set at the front end of the transition slider (7).
2. The novel automatic cap sorting machine as described in claim 1, characterized in that: The front end of the aluminum foil detection sensor (9) is provided with a stop (10), and the stop (10) is equipped with a second telescopic element (11).
3. The novel automatic cap sorting machine as described in claim 2, characterized in that: The stop (10) is made of polytetrafluoroethylene material.
4. The novel automatic cap sorting machine as described in claim 1, characterized in that: The distance between the tray (1) and the transparent plate (2) is adjustable.
5. A novel automatic cap sorting machine as described in claim 1, characterized in that: The feed end of the pallet assembly is provided with a stop bar (12), the top of the stop bar (12) is rotatably disposed on the side of the lifting mechanism, and the front end of the stop bar (12) is provided with a limit bar (13).
6. The novel automatic cap sorting machine as described in claim 1, characterized in that: The distance between the tray (1) and the transparent plate (2) is greater than the thickness of the bottle cap. The upper slide (3) and the lower slide (5) are installed on the tray (1). The middle slide (4) is installed on the transparent plate (2). The supporting surface of the upper slide (3) is provided with an inclined surface (14) on the side close to the tray (1).
7. A novel automatic cap sorting machine as described in claim 2, characterized in that: Both the first telescopic element (8) and the second telescopic element (11) are cylinders.
Citation Information
Patent Citations
An automatic cap unscrambling device with reverse cap rejecting mechanism
CN103754611B