A bottle cap online reverse cap rejection device
The online detection and rejection device solves the problem of downtime caused by the reversed cap state during bottle cap conveying, achieving efficient bottle cap conveying and ensuring production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YIWU EASY OPEN END INDAL CORP
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-26
AI Technical Summary
In existing technologies, bottle caps are sometimes output in an inverted state during the bottle cap conveying process, leading to downtime and low production efficiency.
Design an online bottle cap reverse cap rejection device that uses a reverse cap detection probe to detect and reject bottle caps in a reversed state using a flip plate and cylinder mechanism, thus preventing them from entering subsequent processes.
It effectively removes bottle caps that are upside down, preventing machine downtime and ensuring production efficiency.
Smart Images
Figure CN224272242U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bottle cap conveying technology, specifically to an online bottle cap reverse cap rejection device. Background Technology
[0002] In bottle cap conveying processes, the commonly used methods for orderly arranging bottle caps in a consistent direction are rotary centrifugal capping machines, vibratory feeders, and waterfall cap sorting machines. Rotary and vibratory feeder methods can cause varying degrees of abrasion to the bottle caps, while waterfall cap sorting machines cause less abrasion and are therefore more widely used. However, all three types of cap sorting machines have the problem of bottle caps being output in an inverted state (for example, in a process where the bottle cap openings are required to face upwards, some bottle caps may be output with their openings facing downwards; these downward-facing bottle caps are considered inverted). This problem is especially likely to occur when the deviation between the center of gravity of the bottle caps is small.
[0003] For example, Chinese Patent Publication No. CN103863797A, entitled "Slanted Cap Sorting Machine", discloses a slanted cap sorting machine that uses a rotary type to accurately and automatically sort slanted caps; however, it also has the problem of outputting caps in an inverted state.
[0004] In view of this, there is a need to provide an online bottle cap reverse cap rejection device, so as to effectively prevent bottle caps from entering the subsequent process in an reversed state, causing problems such as machine downtime and ensuring production efficiency. Utility Model Content
[0005] The purpose of this invention is to provide an online bottle cap rejection device that can reject bottle caps that are conveyed in an inverted state, thereby preventing bottle caps from entering subsequent processes in an inverted state and causing machine downtime and other problems, thus ensuring production efficiency.
[0006] The technical solution of this utility model is:
[0007] An online bottle cap reverse cap rejection device includes a bottle cap conveying channel and a reverse cap rejection device. The bottle cap conveying channel includes a reverse cap rejection area, and a rejection port is provided at the bottom of the bottle cap conveying channel where the reverse cap rejection area is located.
[0008] The reverse-cap rejection device includes:
[0009] The reverse cap detection probe is set in the reverse cap rejection area. The reverse cap detection probe and the rejection port are distributed back and forth along the conveying direction of the cap conveying channel, or the reverse cap detection probe is located above the rejection port.
[0010] Rotate the flap located at the rejection port;
[0011] A rotary drive mechanism rotates a flap to close or open the rejection port. The specific operation of one type of online bottle cap rejection device according to this solution is as follows:
[0012] Bottle caps are arranged sequentially in the bottle cap conveyor channel and transported along it. When the bottle caps reach the reverse-cap rejection area, a reverse-cap detection probe checks each passing cap. When the probe detects a cap in an reversed position, a rotary drive mechanism rotates a flap to open the rejection port, allowing the reversed cap to fall through. The rotary drive mechanism then rotates the flap back to its original position, closing the rejection port, allowing correctly positioned bottle caps to be transported smoothly along the channel. This allows for the online rejection of caps transported in a reversed position, preventing them from entering subsequent processes and causing downtime or other problems, thus ensuring production efficiency.
[0013] Preferably, the reverse-cap rejection device also includes a front cap-stopping cylinder, located in front of the rejection port, with its piston rod extending into the cap conveying channel. Thus, when the reverse-cap detection probe detects a cap in an reversed state, the piston rod of the front cap-stopping cylinder first extends into the cap conveying channel, stopping the cap from reaching the reverse-cap rejection area, thereby keeping the reverse-capped cap in the rejection area. Next, the rotary drive mechanism drives the flap to rotate, opening the rejection port and allowing the reverse-capped cap to fall through. Then, the rotary drive mechanism drives the flap to rotate back to its original position, closing the rejection port. Finally, the piston rod of the front cap-stopping cylinder retracts and moves out of the cap conveying channel, allowing the cap to be smoothly conveyed along the channel.
[0014] Preferably, the reverse-cap rejection device also includes a rear cap-stopping cylinder, located behind the rejection port, with its piston rod extending into the cap conveying channel. Thus, when the reverse-cap detection probe detects a cap in an reversed state, the piston rods of both the front and rear cap-stopping cylinders simultaneously extend into the cap conveying channel, stopping the caps leading to and within the reverse-cap rejection area, ensuring that the reversed caps remain in the rejection area. Next, a rotary drive mechanism drives a flap to rotate, opening the rejection port and allowing the reversed caps to fall through. Then, the rotary drive mechanism drives the flap to rotate back to its original position, closing the rejection port. Finally, the piston rods of the front and rear cap-stopping cylinders retract and move out of the cap conveying channel, allowing the caps to be smoothly conveyed along the channel.
[0015] Preferably, the bottle cap conveying channel includes a front conveying channel, a reverse cap rejection channel, and a rear conveying channel, wherein the reverse cap rejection channel constitutes the reverse cap rejection area.
[0016] Preferably, the reverse-cap rejection channel is formed by a bottom support, a top limiting member, and left and right limiting members. The rejection port is located on the bottom support, and the reverse-cap detection probe is located on the top limiting member. This facilitates actual processing and manufacturing.
[0017] Preferably, the front conveying channel is made of round steel bars on all four sides, and flange plates are provided at both ends of the front conveying channel. The flange plates are provided with flange openings that are compatible with bottle caps, and each round steel bar of the front conveying channel is connected to the flange plates at both ends of the front conveying channel.
[0018] Preferably, the rear conveying channel is made of round steel bars on all four sides, and flange plates are provided at both ends of the rear conveying channel. The flange plates are provided with flange openings that are compatible with bottle caps, and each round steel bar of the rear conveying channel is connected to the flange plates at both ends of the rear conveying channel.
[0019] Preferably, the length of the rejection port along the conveying direction of the bottle cap conveying channel is 2-4 times the outer diameter of the bottle cap. Because bottle caps are squeezed against each other during conveying along the channel, the conveying speed changes, making it impossible to accurately predict the position of the bottle cap during transport. When the reverse-cap detection probe detects a bottle cap in an inverted state, to ensure that the inverted bottle cap can fall smoothly through the rejection port after it opens, this solution sets the length of the rejection port along the conveying direction of the bottle cap conveying channel to 2-4 times the outer diameter of the bottle cap.
[0020] Preferably, a feeding channel is also included, the upper end of which is connected to a rejection port. When a bottle cap in an inverted position falls through the rejection port, the bottle cap is conveyed to a designated position through the feeding channel.
[0021] Preferably, the flap can rotate within the material discharge channel.
[0022] Preferably, the rotary drive mechanism is a pneumatic cylinder, hydraulic cylinder, electric cylinder, or electric push rod.
[0023] The beneficial effects of this utility model are: it can remove bottle caps that are conveyed in an inverted state online, thereby avoiding problems such as bottle caps entering the subsequent process in an inverted state, which would lead to machine downtime and other problems, thus ensuring production efficiency. Attached Figure Description
[0024] Figure 1 This is a partial structural diagram of an online bottle cap reverse cap rejection device according to this utility model.
[0025] Figure 2 yes Figure 1 A top view.
[0026] In the picture:
[0027] Bottle cap conveying channel 1, reverse cap rejection area 1.0, front conveying channel 1.1, section conveying channel 1.2, flange plate 1.3, rejection port 1.4, round steel bar 1.5;
[0028] 2. Reverse cap rejection device, 2.1. Reverse cap detection probe, 2.2. Flip plate, 2.3. Rotary drive mechanism, 2.4. Front cap stop cylinder, 2.5. Rear cap stop cylinder, 2.6. Cap stop head;
[0029] Material feeding channel 3;
[0030] Bottle cap 4. Detailed Implementation
[0031] Specific Implementation Example 1, such as Figure 1 , Figure 2 As shown, an online bottle cap reverse cap rejection device includes a bottle cap conveying channel 1 and a reverse cap rejection device 2. The bottle cap conveying channel 1 includes a reverse cap rejection area 1.0. The bottom of the bottle cap conveying channel 1, where the reverse cap rejection area 1.0 is located, is provided with a rejection port 1.4.
[0032] The reverse-cap rejection device 2 includes a reverse-cap detection probe 2.1, a flap 2.2, and a rotary drive mechanism 2.3. The flap 2.2 is rotatably positioned at the rejection port 1.4. The rotary drive mechanism 2.3 drives the flap 2.2 to rotate, thereby closing or opening the rejection port 1.4. In this embodiment, the rotary drive mechanism 2.3 is a pneumatic cylinder, hydraulic cylinder, electric cylinder, or electric push rod.
[0033] The reverse cap detection probe 2.1 is set in the reverse cap rejection area 1.0 to detect the state of each bottle cap 4 that passes through the reverse cap detection probe 2.1 and determine whether the bottle cap 4 is in the reverse cap state.
[0034] In one example, the reverse cap detection probe 2.1 and the rejection port 1.4 are distributed back-to-back along the conveying direction of the cap conveying channel 1. The reverse cap detection probe 2.1 is located in front of and close to the rejection port 1.4. In this example, the reverse cap detection probe 2.1 detects the cap facing downwards or upwards.
[0035] In another example, the reverse cap detection probe 2.1 is located above the rejection port 1.4. In this example, the reverse cap detection probe 2.1 detects the bottle cap downwards.
[0036] The specific operation of the online bottle cap reverse cap rejection device in this embodiment is as follows:
[0037] The following description uses the example of a bottle cap with the opening facing down to be defined as an inverted cap state.
[0038] Bottle caps 4 are arranged sequentially in the bottle cap conveying channel 1 and conveyed along it. When the bottle caps reach the reverse cap rejection area 1.0 along the bottle cap conveying channel 1, each passing bottle cap is detected by the reverse cap detection probe 2.1. When the reverse cap detection probe 2.1 detects a bottle cap in an reversed state, the rotary drive mechanism 2.3 drives the flip plate 2.2 to rotate downwards, opening the rejection port 1.4, allowing the reversed bottle cap to fall through the rejection port 1.4; then the rotary drive mechanism 2.3 drives the flip plate 2.2 to rotate upwards to reset, closing the rejection port 1.4, so that bottle caps in a normal state can be smoothly conveyed along the bottle cap conveying channel 1. In this way, bottle caps conveyed in a reversed state can be rejected online, thereby preventing bottle caps from entering subsequent processes in a reversed state, causing downtime and other problems, and ensuring production efficiency.
[0039] Specific embodiment two, such as Figure 1 , Figure 2 As shown, an online bottle cap reverse cap rejection device includes a bottle cap conveying channel 1 and a reverse cap rejection device 2. The bottle cap conveying channel 1 includes a reverse cap rejection area 1.0. The bottom of the bottle cap conveying channel 1, where the reverse cap rejection area 1.0 is located, is provided with a rejection port 1.4.
[0040] The reverse-cap rejection device 2 includes a reverse-cap detection probe 2.1, a front cap stop cylinder 2.4, a flap 2.2, and a rotary drive mechanism 2.3. The flap 2.2 is rotatably positioned at the rejection port 1.4. The rotary drive mechanism 2.3 drives the flap 2.2 to rotate, thereby closing or opening the rejection port 1.4. In this embodiment, the rotary drive mechanism 2.3 is a pneumatic cylinder, hydraulic cylinder, electric cylinder, or electric push rod.
[0041] The front cap-stopping cylinder 2.4 is located in front of the rejection port 1.4, meaning that the front cap-stopping cylinder 2.4 and the rejection port 1.4 are distributed front and back along the conveying direction of the bottle cap conveying channel 1. The piston rod of the front cap-stopping cylinder 2.4 can extend into the bottle cap conveying channel 1. In this embodiment, the end of the piston rod of the front cap-stopping cylinder 2.4 is provided with a cap-stopping head 2.6.
[0042] In one example, the front stop cap cylinder 2.4 is positioned above the bottle cap conveying channel 1. The front stop cap cylinder 2.4 is vertically distributed, and the piston rod of the front stop cap cylinder 2.4 can extend into the bottle cap conveying channel 1 from top to bottom.
[0043] In another example, the front stop cap cylinder 2.4 is located below the bottle cap conveying channel 1. The front stop cap cylinder 2.4 is vertically distributed, and the piston rod of the front stop cap cylinder 2.4 can extend into the bottle cap conveying channel 1 from bottom to top.
[0044] In the third example, the front stop cap cylinder 2.4 is located on the left or right side of the bottle cap conveying channel 1. The front stop cap cylinder 2.4 is horizontally distributed, and the piston rod of the front stop cap cylinder 2.4 can extend into the bottle cap conveying channel 1 in the horizontal direction.
[0045] The reverse cap detection probe 2.1 is set in the reverse cap rejection area 1.0 to detect the state of each bottle cap 4 that passes through the reverse cap detection probe 2.1 and determine whether the bottle cap 4 is in the reverse cap state.
[0046] In one example, the reverse cap detection probe 2.1 and the rejection port 1.4 are distributed back-to-back along the conveying direction of the cap conveying channel 1. The reverse cap detection probe 2.1 is located in front of and close to the rejection port 1.4. In this example, the reverse cap detection probe 2.1 detects the cap facing downwards or upwards.
[0047] In another example, the reverse cap detection probe 2.1 is located above the rejection port 1.4. In this example, the reverse cap detection probe 2.1 detects the bottle cap downwards.
[0048] The specific operation of the online bottle cap reverse cap rejection device in this embodiment is as follows:
[0049] The following description uses the example of a bottle cap with the opening facing down to be defined as an inverted cap state.
[0050] Bottle caps 4 are arranged sequentially in the bottle cap conveying channel 1 and conveyed along the channel. When the bottle caps are conveyed to the reverse cap rejection area 1.0 along the bottle cap conveying channel 1, each bottle cap is detected by the reverse cap detection probe 2.1. When the reverse cap detection probe 2.1 detects a bottle cap in a reversed state, the piston rod of the front stop cylinder 2.4 first extends into the bottle cap conveying channel 1 to stop the bottle caps leading to the reverse cap rejection area 1.0, thus keeping the reversed bottle caps in the reverse cap rejection area 1.0. Then, the rotary drive mechanism 2.3 drives the flip plate 2.2 to rotate downward, opening the rejection port 1.4, allowing the reversed bottle caps to fall through the rejection port 1.4. Next, the rotary drive mechanism 2.3 drives the flip plate 2.2 to rotate upward and reset, closing the rejection port 1.4. Then, the piston rod of the front stop cylinder 2.4 retracts and moves out of the bottle cap conveying channel 1, so that the bottle caps can be conveyed smoothly along the channel 1. In this way, bottle caps that are conveyed in an upside-down state can be rejected online, thus preventing bottle caps from entering the subsequent process in an upside-down state and causing problems such as machine downtime, thereby ensuring production efficiency.
[0051] Specific embodiment three, such as Figure 1 , Figure 2 As shown, an online bottle cap reverse cap rejection device includes a bottle cap conveying channel 1 and a reverse cap rejection device 2. The bottle cap conveying channel 1 includes a reverse cap rejection area 1.0. The bottom of the bottle cap conveying channel 1, where the reverse cap rejection area 1.0 is located, is provided with a rejection port 1.4.
[0052] The reverse-cap rejection device 2 includes a reverse-cap detection probe 2.1, a front cap-stopping cylinder 2.4, a rear cap-stopping cylinder 2.5, a flap 2.2, and a rotary drive mechanism 2.3. The flap 2.2 is rotatably positioned at the rejection opening 1.4. The rotary drive mechanism 2.3 drives the flap 2.2 to rotate, thereby closing or opening the rejection opening 1.4. In this embodiment, the rotary drive mechanism 2.3 is a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, or an electric push rod.
[0053] The front cap-stopping cylinder 2.4 is located in front of the rejection port 1.4, meaning that the front cap-stopping cylinder 2.4 and the rejection port 1.4 are distributed front and back along the conveying direction of the bottle cap conveying channel 1. The piston rod of the front cap-stopping cylinder 2.4 can extend into the bottle cap conveying channel 1. In this embodiment, the end of the piston rod of the front cap-stopping cylinder 2.4 is provided with a cap-stopping head 2.6.
[0054] Located behind the rejection port 1.4, i.e., the rejection port 1.4 and the rear capping cylinder 2.5 are distributed front and back along the conveying direction of the bottle cap conveying channel 1. The piston rod of the rear capping cylinder 2.5 can extend into the bottle cap conveying channel 1. In this embodiment, the end of the piston rod of the rear capping cylinder 2.5 is provided with a capping head 2.6.
[0055] In one example, the front cap stop cylinder 2.4 is positioned above the cap conveying channel 1, and is vertically distributed. The piston rod of the front cap stop cylinder 2.4 can extend downwards into the cap conveying channel 1. The rear cap stop cylinder 2.5 is positioned above the cap conveying channel 1, and is vertically distributed. The piston rod of the rear cap stop cylinder 2.5 can extend downwards into the cap conveying channel 1.
[0056] In another example, the front cap stop cylinder 2.4 is located below the cap conveying channel 1, and is vertically distributed. The piston rod of the front cap stop cylinder 2.4 can extend into the cap conveying channel 1 from bottom to top. The rear cap stop cylinder 2.5 is located below the cap conveying channel 1, and is vertically distributed. The piston rod of the rear cap stop cylinder 2.5 can extend into the cap conveying channel 1 from bottom to top.
[0057] In the third example, the front cap cylinder 2.4 is located on the left or right side of the cap conveying channel 1. The front cap cylinder 2.4 is horizontally distributed, and its piston rod can extend horizontally into the cap conveying channel 1. The rear cap cylinder 2.5 is located on the left or right side of the cap conveying channel 1. The rear cap cylinder 2.5 is horizontally distributed, and its piston rod can extend horizontally into the cap conveying channel 1.
[0058] The reverse cap detection probe 2.1 is set in the reverse cap rejection area 1.0 to detect the state of each bottle cap 4 that passes through the reverse cap detection probe 2.1 and determine whether the bottle cap is in the reverse cap state.
[0059] In one example, the reverse cap detection probe 2.1 and the rejection port 1.4 are distributed back-to-back along the conveying direction of the cap conveying channel 1. The reverse cap detection probe 2.1 is located in front of and close to the rejection port 1.4. In this example, the reverse cap detection probe 2.1 detects the cap facing downwards or upwards.
[0060] In another example, the reverse cap detection probe 2.1 is located above the rejection port 1.4. In this example, the reverse cap detection probe 2.1 detects the bottle cap downwards.
[0061] The specific operation of the online bottle cap reverse cap rejection device in this embodiment is as follows:
[0062] The following description uses the example of a bottle cap with the opening facing down to be defined as an inverted cap state.
[0063] Bottle caps 4 are arranged sequentially in the bottle cap conveying channel 1 and conveyed along the bottle cap conveying channel 1. When the bottle caps are conveyed along the bottle cap conveying channel 1 to the reverse cap rejection area 1.0, each bottle cap that passes through is detected by the reverse cap detection probe 2.1. When the reverse cap detection probe 2.1 detects a bottle cap in an reversed state, the piston rods of the front cap stop cylinder 2.4 and the rear cap stop cylinder 2.5 simultaneously extend into the bottle cap conveying channel 1, stopping the bottle caps leading to the reverse cap rejection area 1.0 and the bottle caps within the reverse cap rejection area 1.0, thus ensuring that the reversed bottle caps remain within the reverse cap rejection area 1.0. Next, the rotary drive mechanism 2.3 drives the flap 2.2 to rotate downwards, opening the rejection port 1.4, allowing the reversed bottle caps to fall through the rejection port 1.4. Then, the rotary drive mechanism 2.3 drives the flap 2.2 to rotate upwards to reset, closing the rejection port 1.4. Finally, the piston rods of the front cap stop cylinder 2.4 and the rear cap stop cylinder 2.5 retract and move out of the bottle cap conveying channel 1, allowing the bottle caps to be smoothly conveyed along the bottle cap conveying channel 1. In this way, bottle caps that are conveyed in an upside-down state can be rejected online, thus preventing bottle caps from entering the subsequent process in an upside-down state and causing problems such as machine downtime, thereby ensuring production efficiency.
[0064] In this specific embodiment four, the remaining structure is the same as in specific embodiment one, two, or three, except that...
[0065] like Figure 1 , Figure 2 As shown, the bottle cap conveying channel 1 includes a front conveying channel 1.1, a reverse cap rejection channel, and a rear conveying channel 1.2. The reverse cap rejection channel constitutes the reverse cap rejection area 1.0.
[0066] The reverse-cap removal channel is formed by a bottom support, a top limiting member, and left and right limiting members. In this embodiment, the bottom support is composed of a bottom plate, the top limiting member is composed of a top plate, and the left and right limiting members are composed of left and right side plates. It should be noted that the bottom support can also be formed by other components, such as several parallel bottom rods; the top limiting member can also be composed of a top plate. Similarly, the left and right limiting members can also be formed by other components, such as several parallel side rods.
[0067] The rejection port 1.4 is provided on the bottom support member. In this embodiment, the rejection port 1.4 is provided on the bottom plate.
[0068] The reverse cap detection probe 2.1 is set on the top limiting member. In this embodiment, the reverse cap detection probe 2.1 is set on the top plate, and the top plate is provided with a detection port corresponding to the reverse cap detection probe 2.1. The reverse cap detection probe 2.1 detects each bottle cap that passes through the detection port.
[0069] Furthermore, such as Figure 2 As shown, the front conveying channel 1.1 is surrounded by round steel bars 1.5. These round steel bars can be hollow or solid. Flange plates 1.3 are provided at both ends of the front conveying channel 1.1. The flange plates have flange openings that fit the bottle caps. Each round steel bar of the front conveying channel 1.1 is connected to the flange plates at both ends of the front conveying channel 1.1. It should be noted that the front conveying channel 1.1 can also be entirely constructed of sheet metal.
[0070] The rear conveying channel 1.2 is surrounded by round steel bars 1.5. These round steel bars can be hollow or solid. Flange plates 1.3 are provided at both ends of the rear conveying channel 1.2. The flange plates have flange openings that fit the bottle caps. Each round steel bar of the rear conveying channel 1.2 is connected to the flange plates at both ends of the rear conveying channel 1.2. It should be noted that the rear conveying channel 1.2 can also be surrounded by sheet metal.
[0071] Furthermore, such as Figure 1 As shown, the length of the rejection port 1.4 along the conveying direction of the bottle cap conveying channel 1 is 2-4 times the outer diameter of the bottle cap. In this embodiment, the length of the rejection port 1.4 along the conveying direction of the bottle cap conveying channel 1 is 3 times the outer diameter of the bottle cap. Because the bottle caps will squeeze against each other during the conveying process along the bottle cap conveying channel 1, and the conveying speed will change, the position of the bottle cap during the conveying process cannot be accurately predicted. When the reverse-cap detection probe 2.1 detects a bottle cap in a reverse-cap state, in order to ensure that the reverse-cap bottle cap can fall smoothly through the rejection port 1.4 after it opens, this solution makes the length of the rejection port 1.4 along the conveying direction of the bottle cap conveying channel 1 2-4 times the outer diameter of the bottle cap.
[0072] Furthermore, such as Figure 1 As shown, an online bottle cap rejection device also includes a feeding channel 3. The upper end of the feeding channel 3 is connected to the rejection port 1.4. The flap 2.2 can rotate within the feeding channel 3. When a bottle cap in an inverted state falls through the rejection port 1.4, the bottle cap is conveyed to a designated position through the feeding channel 3.
[0073] For example, the lower end of the material discharge channel 3 is connected to the cap sorting machine, and the bottle caps are transported back to the cap sorting machine through the material discharge channel 3 for reordering and feeding; or the lower end of the material discharge channel 3 is equipped with a recycling box, and the bottle caps are transported into the recycling box through the material discharge channel 3.
[0074] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent transformations made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.
Claims
1. An online bottle cap reverse cap rejection device, characterized in that, It includes a bottle cap conveying channel and a reverse cap rejection device. The bottle cap conveying channel includes a reverse cap rejection area, and a rejection port is provided at the bottom of the bottle cap conveying channel where the reverse cap rejection area is located. The reverse-cap rejection device includes: The reverse cap detection probe is set in the reverse cap rejection area. The reverse cap detection probe and the rejection port are distributed back and forth along the conveying direction of the cap conveying channel, or the reverse cap detection probe is located above the rejection port. Rotate the flap located at the rejection port; A rotary drive mechanism drives the flap to rotate, thereby closing or opening the rejection port.
2. The online bottle cap reverse cap rejection device according to claim 1, characterized in that, The reverse cap rejection device also includes a front cap stop cylinder, which is located in front of the rejection port, and the piston rod of the front cap stop cylinder can extend into the bottle cap conveying channel.
3. The online bottle cap reverse cap rejection device according to claim 2, characterized in that, The reverse cap rejection device also includes a rear cap stop cylinder, which is located behind the rejection port, and the piston rod of the rear cap stop cylinder can extend into the bottle cap conveying channel.
4. A bottle cap online reverse cap rejection device according to claim 1, 2, or 3, characterized in that, The bottle cap conveying channel includes a front conveying channel, a reverse cap rejection channel, and a rear conveying channel. The reverse cap rejection channel constitutes the reverse cap rejection area. The reverse cap rejection channel is surrounded by a bottom support, a top limiting member, and left and right limiting members. The rejection port is set on the bottom support and the reverse cap detection probe is set on the top limiting member.
5. The online bottle cap reverse cap rejection device according to claim 4, characterized in that, The front conveying channel is surrounded by round steel bars. Flange plates are provided at both ends of the front conveying channel. The flange plates have flange openings that are compatible with bottle caps. Each round steel bar of the front conveying channel is connected to the flange plates at both ends of the front conveying channel.
6. The online bottle cap reverse cap rejection device according to claim 4, characterized in that, The rear conveying channel is surrounded by round steel bars. Flange plates are provided at both ends of the rear conveying channel. The flange plates have flange openings that are compatible with bottle caps. Each round steel bar of the rear conveying channel is connected to the flange plates at both ends of the rear conveying channel.
7. A bottle cap online reverse cap rejection device according to claim 1, 2, or 3, characterized in that, The length of the rejection port along the conveying direction of the bottle cap conveying channel is 2-4 times the outer diameter of the bottle cap.
8. A bottle cap online reverse cap rejection device according to claim 1, 2, or 3, characterized in that, It also includes a material discharge channel, the upper end of which is connected to the rejection port.
9. The online bottle cap reverse cap rejection device according to claim 8, characterized in that, The flap can rotate within the material discharge channel.
10. A bottle cap online reverse cap rejection device according to claim 1, 2, or 3, characterized in that, The rotary drive mechanism is a pneumatic cylinder, hydraulic cylinder, electric cylinder, or electric push rod.