Feeding mechanism and bottle cap detection equipment

Abstract

The application discloses a feeding mechanism and a bottle cap detection device. The feeding mechanism comprises a rack, a receiving part arranged on the rack, the receiving part being used for being connected with a discharging end of an external feeding mechanism to receive bottle caps fed by the discharging end of the external feeding mechanism, and an upper negative pressure conveying belt assembly arranged on the rack and extending along a feeding direction, the upper negative pressure conveying belt assembly being arranged in a staggered mode with the receiving part, and an end of the upper negative pressure conveying belt assembly close to the receiving part being located directly above the receiving part, the upper negative pressure conveying belt assembly being used for adsorbing the bottle caps received by the receiving part and conveying the adsorbed bottle caps along the feeding direction. The receiving part is provided with a blowing port used for being connected with a positive pressure air source and blowing air to the bottom of the bottle caps received by the receiving part. The above structure is favorable for improving the response speed of transferring the bottle caps to the upper negative pressure conveying belt assembly, and is also favorable for the upper negative pressure conveying belt assembly to more stably adsorb the bottle caps.

Description

Technical Field

[0001] This application relates to the field of bottle cap detection technology, and in particular to a feeding mechanism and bottle cap detection equipment. Background Technology

[0002] Bottle caps are a common filling accessory used to seal the filling opening of filling containers (glass bottles, plastic bottles, etc. for filling liquids). Before assembling the bottle caps onto the filling opening of the filling container, the bottle caps need to be inspected to ensure that the bottle caps entering the assembly process meet the requirements in terms of appearance, size, printing, labeling, etc.

[0003] In related technologies, to detect the bottom area of ​​bottle caps during conveying, a partially overlapping and staggered upper and lower negative pressure conveyor belt assembly is used for feeding. The upper negative pressure conveyor belt assembly uses vacuum adsorption to pick up the bottle caps conveyed by the lower negative pressure conveyor belt assembly and continues to convey the adsorbed bottle caps, exposing the bottom area of ​​the bottle caps for visual inspection. However, in the above feeding process, the upper negative pressure conveyor belt assembly relies solely on its own vacuum adsorption force to pick up the bottle caps conveyed by the lower negative pressure conveyor belt assembly. This results in a slow response speed for the bottle caps to transfer from the lower to the upper negative pressure conveyor belt assembly, and the upper negative pressure conveyor belt assembly struggles to reliably pick up the bottle caps conveyed by the lower negative pressure conveyor belt assembly. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a feeding mechanism that is beneficial to improving the response speed of bottle cap transfer to the upper negative pressure conveyor belt assembly, and at the same time, it is beneficial to make the upper negative pressure conveyor belt assembly more stable in picking up the bottle cap.

[0005] This application also proposes a bottle cap testing device having the above-mentioned feeding mechanism.

[0006] A feeding mechanism according to a first aspect of this application includes: a frame; a receiving part disposed on the frame, the receiving part being used to dock with the discharge end of an external feeding mechanism to receive bottle caps fed by the discharge end of the external feeding mechanism; an upper negative pressure conveyor belt assembly disposed on the frame and extending along the feeding direction, the upper negative pressure conveyor belt assembly being vertically offset from the receiving part, one end of the upper negative pressure conveyor belt assembly near the receiving part being located directly above the receiving part, the upper negative pressure conveyor belt assembly being used to adsorb the bottle caps received by the receiving part and to convey the adsorbed bottle caps along the feeding direction; wherein, the receiving part is provided with an air blowing port for connecting to a positive pressure air source and blowing air onto the bottom of the bottle caps received by the receiving part.

[0007] The feeding mechanism according to the embodiments of this application has at least the following beneficial effects: In use, the receiving part receives bottle caps fed from the discharge end of the external feeding mechanism. The upper negative pressure conveyor belt assembly has one end near the receiving part directly above it, allowing the upper negative pressure conveyor belt assembly to adsorb the bottle caps received by the receiving part and transport them along the feeding direction, exposing the bottom area of ​​the bottle caps. This enables visual inspection technology to detect the bottom area of ​​the bottle caps. Furthermore, the receiving part is provided with an air outlet for connecting to a positive pressure air source and blowing air onto the bottom of the bottle caps received by the receiving part. While the upper negative pressure conveyor belt assembly adsorbs the bottle caps received by the receiving part, the positive pressure air source blows air onto the bottom of the bottle caps received by the receiving part through the air outlet, assisting the bottle caps to detach from the support of the receiving part and be adsorbed onto the upper negative pressure conveyor belt assembly. The above structure is beneficial for improving the response speed of the bottle cap transfer to the upper negative pressure conveyor belt assembly, and also helps the upper negative pressure conveyor belt assembly to more stably pick up the bottle caps.

[0008] According to some embodiments of this application, the feeding mechanism further includes a negative pressure generating device, which has an air inlet and an air outlet. The air inlet is connected to the upper negative pressure conveyor belt assembly via a pipeline, and the air outlet is connected to the air blowing port via a pipeline.

[0009] According to some embodiments of this application, a regulating valve is provided on the pipeline between the air outlet and the air blowing port, and the regulating valve is used to regulate the air output of the air blowing port.

[0010] According to some embodiments of this application, the receiving part is provided with a limiting groove extending along the feeding direction and used to accommodate the bottle cap, the end of the limiting groove is an open structure, and the air blowing port is located at the bottom of the limiting groove.

[0011] According to some embodiments of this application, the feeding mechanism further includes a cap-separating device, which includes two rotating wheels for clamping bottle caps and driving the clamped bottle caps to feed. The two rotating wheels are respectively disposed on both sides of the receiving part, and a first drive motor for driving the rotating wheels to rotate is disposed on the frame.

[0012] According to some embodiments of this application, the feeding mechanism further includes an upward-opening collection hopper, which is located directly below the upper negative pressure conveyor belt assembly, and is used to collect fallen bottle caps.

[0013] According to some embodiments of this application, the upper negative pressure conveyor belt assembly includes a first support, a second drive motor, rollers, and an annular conveyor belt. The first support is disposed on the frame and extends along the feeding direction. Rollers are disposed at both ends of the first support. The annular conveyor belt is wrapped around the first support. The second drive motor is disposed on the first support and is used to drive the annular conveyor belt to move. A negative pressure chamber for connecting to a negative pressure air source is disposed inside the first support. An adsorption hole for adsorbing bottle caps is disposed on the annular conveyor belt, which can communicate with the negative pressure chamber.

[0014] According to some embodiments of this application, a height adjustment structure is provided on the frame corresponding to the upper negative pressure conveyor belt assembly, and the height adjustment structure is used to adjust the height of the upper negative pressure conveyor belt assembly.

[0015] According to some embodiments of this application, the height adjustment structure includes a second bracket, a movable connector, a lead screw assembly, and a drive member. The second bracket is disposed on the frame. The movable connector is movably connected to the second bracket and connected to the first bracket. The lead screw assembly is disposed between the second bracket and the movable connector. The drive member is connected to the lead screw assembly and is used to drive the movable connector to move up and down relative to the second bracket.

[0016] The bottle cap detection device according to a second aspect of this application includes a feeding mechanism according to the first aspect of this application described above.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of the structure of a bottle cap detection device according to an embodiment of this application;

[0020] Figure 2 This is a partial structural diagram of the receiving part in a bottle cap testing device according to an embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the air path structure between the receiving part, the upper negative pressure conveyor belt assembly, and the negative pressure generating device in a bottle cap testing device according to an embodiment of this application.

[0022] Figure 4 yes Figure 2 A schematic diagram of the structure shown from another perspective;

[0023] Figure 5 This is a partial structural diagram of the feeding mechanism in a bottle cap testing device according to an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the upper negative pressure conveyor belt assembly according to an embodiment of this application;

[0025] Figure 7 yes Figure 6 A cross-sectional view of the structure shown;

[0026] Figure 8 yes Figure 7 A magnified view of a portion of point A in the middle.

[0027] Figure label:

[0028] Bottle cap a, frame 100, receiving part 200, air blowing port 210, limiting groove 220, upper negative pressure conveyor belt assembly 300, first support 310, negative pressure chamber 311, second drive motor 320, roller 330, ring conveyor belt 340, adsorption hole 341, negative pressure generating device 400, air inlet end 410, air outlet end 420, regulating valve 500, rotating wheel 610, first drive motor 620, hopper 700, second support 810, guide column 811, movable connecting part 820, guide sleeve 821, screw assembly 830, drive part 840. Detailed Implementation

[0029] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0030] In the description of this application, it should be understood that if directional descriptions are involved, such as up, down, front, back, left, right, etc., indicating the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] In the description of this application, if words such as several, greater than, less than, exceeding, above, below, or within appear, "several" means one or more, "more than" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the number itself, and "above," "below," "within," etc. are understood to include the number itself.

[0032] In the description of this application, the use of terms such as "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0033] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0034] Reference Figures 1 to 8 The feeding mechanism according to an embodiment of this application includes a frame 100, a receiving part 200, and an upper negative pressure conveyor belt assembly 300.

[0035] Specifically, the receiving part 200 is disposed on the frame 100. The receiving part 200 is used to connect with the discharge end of the external feeding mechanism to receive the bottle caps a fed by the discharge end of the external feeding mechanism. The upper negative pressure conveyor belt assembly 300 is disposed on the frame 100 and extends along the feeding direction. The upper negative pressure conveyor belt assembly 300 and the receiving part 200 are staggered vertically. The end of the upper negative pressure conveyor belt assembly 300 near the receiving part 200 is located directly above the receiving part 200. The upper negative pressure conveyor belt assembly 300 is used to adsorb the bottle caps a received by the receiving part 200 and transport the adsorbed bottle caps a along the feeding direction. The receiving part 200 is provided with an air blowing port 210 for connecting to a positive pressure air source and blowing air to the bottom of the bottle caps a received by the receiving part 200.

[0036] It should be noted that the feeding direction mentioned above is the X direction in the attached diagram.

[0037] In use, the receiving part 200 receives bottle caps a fed from the discharge end of the external feeding mechanism. The upper negative pressure conveyor belt assembly 300 is located directly above the receiving part 200, which allows the upper negative pressure conveyor belt assembly 300 to adsorb the bottle caps a received by the receiving part 200 and transport the adsorbed bottle caps a along the feeding direction, so that the bottom area of ​​the bottle caps a is exposed, thereby enabling the bottom area of ​​the bottle caps a to be detected in conjunction with visual inspection technology. Furthermore, the receiving section 200 is provided with an air inlet 210 for connecting to a positive pressure air source and blowing air onto the bottom of the bottle cap a received by the receiving section 200. While the upper negative pressure conveyor belt assembly 300 adsorbs the bottle cap a received by the receiving section 200, the positive pressure air source blows air onto the bottom of the bottle cap a received by the receiving section 200 through the air inlet 210, assisting the bottle cap a in detaching from the support of the receiving section 200 and being adsorbed onto the upper negative pressure conveyor belt assembly 300. This structure improves the response speed of the bottle cap a being transferred to the upper negative pressure conveyor belt assembly 300, and also helps the upper negative pressure conveyor belt assembly 300 to more stably pick up the bottle cap a.

[0038] Reference Figure 3 In some embodiments, the feeding mechanism further includes a negative pressure generating device 400, which has an air inlet 410 and an air outlet 420. The air inlet 410 of the negative pressure generating device 400 is connected to the upper negative pressure conveyor belt assembly 300 via a pipeline, and the air outlet 420 of the negative pressure generating device 400 is connected to the air blowing port 210 via a pipeline. In use, the air inlet 410 of the negative pressure generating device 400 provides negative pressure to the upper negative pressure conveyor belt assembly 300 to adsorb bottle caps a, and the air outlet 420 of the negative pressure generating device 400 provides positive pressure to the air blowing port 210 to blow up bottle caps a, thereby realizing the recycling of airflow. Compared with the use of independent negative pressure air sources and positive pressure air sources, this is beneficial for reducing energy consumption.

[0039] Specifically, the negative pressure generating device 400 is a negative pressure fan. Of course, the negative pressure generating device 400 can also be an air pump or an exhaust fan, which is not limited here.

[0040] Reference Figures 2 to 4 In some embodiments, a regulating valve 500 is provided on the pipeline between the air outlet 420 of the negative pressure generating device 400 and the air blowing port 210. The regulating valve 500 is used to adjust the air output of the air blowing port 210 in order to adapt to the actual feeding requirements.

[0041] Reference Figure 2 and Figure 4 In some embodiments, the receiving part 200 is provided with a limiting groove 220 extending along the feeding direction for accommodating the bottle cap a, which helps to prevent the bottle cap a received by the receiving part 200 from falling off. The end of the limiting groove 220 is an open structure to receive the bottle cap a fed by the discharge end of the external feeding mechanism. The air blowing port 210 is located at the bottom of the limiting groove 220 to blow air onto the bottom of the bottle cap a received by the receiving part 200.

[0042] Reference Figure 2 , Figure 4 and Figure 5 In some embodiments, the feeding mechanism further includes a cap-separating device, which includes two rollers 610 for clamping and feeding bottle caps a. The two rollers 610 are respectively disposed on both sides of the receiving part 200. A first drive motor 620 for driving the rollers 610 to rotate is disposed on the frame 100. In use, the rotation speed of the first drive motor 620 is set so that the feeding speed of the bottle caps a clamped by the two rollers 610 is less than the conveying speed of the upper negative pressure conveyor belt assembly 300. This allows the bottle caps a that have been released from the clamping of the rollers 610 and are being conveyed by the upper negative pressure conveyor belt assembly 300 to be separated from the bottle caps a clamped by the two rollers 610, thereby achieving the cap-separating function.

[0043] By adjusting the speed of the first drive motor 620, the distance between two adjacent bottle caps a can be changed to adapt to different feeding requirements.

[0044] Reference Figure 1 and Figure 5 In some embodiments, the feeding mechanism further includes an upward-opening collection hopper 700, which is located directly below the upper negative pressure conveyor belt assembly 300. The collection hopper 700 is used to collect fallen bottle caps a. When bottle caps a conveyed by the upper negative pressure conveyor belt assembly 300 accidentally fall, they can be collected through the collection hopper 700.

[0045] Reference Figures 6 to 8 In some embodiments, the upper negative pressure conveyor belt assembly 300 includes a first support 310, a second drive motor 320, a roller 330, and an annular conveyor belt 340. The first support 310 is disposed on the frame 100 and extends along the feeding direction. Rollers 330 are provided at both ends of the first support 310. The annular conveyor belt 340 is wound around the first support 310. The second drive motor 320 is disposed on the first support 310 and is used to drive the annular conveyor belt 340 to move. The interior of the first support 310 is provided with a negative pressure chamber 311 for connecting to a negative pressure air source. The annular conveyor belt 340 is provided with an adsorption hole 341 that can communicate with the negative pressure chamber 311 and is used to adsorb bottle caps a. Its structure is simple and easy to implement.

[0046] It should be noted that in some embodiments, the output shaft of the second drive motor 320 is connected to one of the rollers 330 to drive the roller 330 to rotate, thereby driving the annular conveyor belt 340 to move.

[0047] It should be noted that in some other embodiments, a tensioning assembly is provided on the first support 310. The tensioning assembly includes multiple tensioning rollers. The output shaft of the second drive motor 320 is connected to one of the tensioning rollers to drive the tensioning roller to rotate. The annular conveyor belt 340 is wound around the tensioning roller so that the rotation of the tensioning roller can drive the annular conveyor belt 340 to move.

[0048] It should be noted that in some embodiments, the frame 100 is provided with a height adjustment structure corresponding to the upper negative pressure conveyor belt assembly 300. The height adjustment structure is used to adjust the height of the upper negative pressure conveyor belt assembly 300, so as to accommodate bottle caps a of different heights.

[0049] Reference Figure 1 and Figure 5In some embodiments, the height adjustment structure includes a second support 810, a movable connector 820, a lead screw assembly 830, and a drive member 840. The second support 810 is disposed on the frame 100. The movable connector 820 is movably connected to the second support 810 and connected to the first support 310. The lead screw assembly 830 is disposed between the second support 810 and the movable connector 820. The drive member 840 is connected to the lead screw assembly 830 and is used to drive the movable connector 820 to move up and down relative to the second support 810. Its structure is simple and easy to implement.

[0050] It should be noted that in some embodiments, at least two guide posts 811 are spaced apart on the second bracket 810, and a guide sleeve 821 is provided on the movable connector 820 through which the guide posts 811 pass, so that the movable connector 820 can move up and down relative to the second bracket 810.

[0051] It should be noted that in some other embodiments, the second bracket 810 is provided with guide grooves at intervals, and the movable connector 820 is provided with a slider that is slidably connected to the guide groove, so that the movable connector 820 can move up and down relative to the second bracket 810.

[0052] It should be noted that in some embodiments, the nut of the lead screw assembly 830 is fixedly mounted on the second bracket 810, and the screw of the lead screw assembly 830 is connected to the movable connector 820. In this case, when the drive member 840 drives the screw of the lead screw assembly 830 to rotate, the nut of the lead screw assembly 830 remains stationary, thereby driving the screw of the lead screw assembly 830 to move up and down, thereby driving the movable connector 820 to move up and down relative to the second bracket 810, and further driving the first bracket 310 to move up and down relative to the second bracket 810, so as to adjust the height of the upper negative pressure conveyor belt assembly 300.

[0053] It should be noted that in some other embodiments, the nut of the lead screw assembly 830 is fixedly mounted on the movable connector 820, and the screw of the lead screw assembly 830 is rotatably mounted between the second bracket 810 and the frame 100. In this case, when the drive member 840 drives the screw of the lead screw assembly 830 to rotate, the screw of the lead screw assembly 830 can only rotate to drive the nut of the lead screw assembly 830 to move up and down, thereby driving the movable connector 820 to move up and down relative to the second bracket 810, and further driving the first bracket 310 to move up and down relative to the second bracket 810, so as to adjust the height of the upper negative pressure conveyor belt assembly 300.

[0054] Specifically, the drive component 840 is a handwheel. Of course, the drive component 840 can also be a motor, which is not limited here.

[0055] It should be noted that in some other embodiments, the height of the upper negative pressure conveyor belt assembly 300 can also be adjusted by linear drive structures such as electric push rods, cylinders, and hydraulic cylinders, which is not limited here.

[0056] The bottle cap detection device according to an embodiment of this application includes the feeding mechanism described above.

[0057] It is understood that since the bottle cap detection device of the embodiments of this application includes the above-mentioned feeding mechanism, the bottle cap detection device of the embodiments of this application has all the technical effects of the above-mentioned feeding mechanism.

[0058] In the description of this specification, the use of terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," and "some examples" indicates that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A feeding mechanism, characterized in that, include: frame; A receiving section is provided on the frame. The receiving section is used to connect with the discharge end of the external feeding mechanism to receive bottle caps fed by the discharge end of the external feeding mechanism. An upper negative pressure conveyor belt assembly is mounted on the frame and extends along the feeding direction. The upper negative pressure conveyor belt assembly is vertically offset from the receiving part. One end of the upper negative pressure conveyor belt assembly near the receiving part is located directly above the receiving part. The upper negative pressure conveyor belt assembly is used to adsorb the bottle caps received by the receiving part and transport the adsorbed bottle caps along the feeding direction. The receiving part is provided with an air blowing port for connecting to a positive pressure air source and blowing air to the bottom of the bottle cap received by the receiving part; The receiving part is provided with a limiting groove extending along the feeding direction and used to accommodate the bottle cap. The end of the limiting groove is an open structure, and the air blowing port is located at the bottom of the limiting groove. The feeding mechanism also includes a cap-splitting device, which includes two rotating wheels for clamping bottle caps and driving the clamped bottle caps to feed. The two rotating wheels are respectively arranged on both sides of the receiving part, and a first drive motor for driving the rotating wheels to rotate is provided on the frame. The upper negative pressure conveyor belt assembly includes a first support, a second drive motor, rollers, and an annular conveyor belt. The first support is mounted on the frame and extends along the feeding direction. Rollers are mounted at both ends of the first support. The annular conveyor belt is wound around the first support. The second drive motor is mounted on the first support and is used to drive the annular conveyor belt. The first support has a negative pressure chamber for connecting to a negative pressure air source. The annular conveyor belt has adsorption holes that can communicate with the negative pressure chamber and are used to adsorb bottle caps.

2. The feeding mechanism as described in claim 1, characterized in that, The feeding mechanism also includes a negative pressure generating device, which has an air inlet and an air outlet. The air inlet is connected to the upper negative pressure conveyor belt assembly through a pipeline, and the air outlet is connected to the air blowing port through a pipeline.

3. The feeding mechanism as described in claim 2, characterized in that, A regulating valve is installed on the pipeline between the air outlet and the air blowing port, and the regulating valve is used to adjust the air output of the air blowing port.

4. The feeding mechanism as described in claim 1, characterized in that, The feeding mechanism also includes an upward-opening collection hopper, which is located directly below the upper negative pressure conveyor belt assembly and is used to collect fallen bottle caps.

5. The feeding mechanism as described in claim 1, characterized in that, The frame is provided with a height adjustment structure corresponding to the upper negative pressure conveyor belt assembly, and the height adjustment structure is used to adjust the height of the upper negative pressure conveyor belt assembly.

6. The feeding mechanism as described in claim 5, characterized in that, The height adjustment structure includes a second bracket, a movable connector, a lead screw assembly, and a drive component. The second bracket is mounted on the frame. The movable connector is movably connected to the second bracket and connected to the first bracket. The lead screw assembly is disposed between the second bracket and the movable connector. The drive component is connected to the lead screw assembly and is used to drive the movable connector to move up and down relative to the second bracket.

7. A bottle cap testing device, characterized in that, Includes the feeding mechanism as described in any one of claims 1 to 6.

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