A continuous linear fully automatic plastic bottle light inspection system

Abstract

The present application discloses a continuous linear fully automatic plastic bottle light inspection system, which relates to the technical field of light inspection equipment. The system includes a horizontal conveying mechanism and a clamping mechanism arranged on the horizontal conveying mechanism. The clamping mechanism moves along the conveying direction of the horizontal conveying mechanism. The clamping mechanism is used to clamp the body of the plastic bottle and keep the plastic bottle vertically arranged. In the conveying direction of the horizontal conveying mechanism, a number of inspection stations for inspecting the appearance of the plastic bottle and the internal liquid medicine are arranged in sequence. The inspection stations include line scanning cameras and / or area array cameras. The present application adopts a linear layout, and the dynamic line is more reasonable. There is no need to shake the liquid medicine in the bottle body. The transmission mechanism is relatively simple, and a large number of fine bubbles will not be generated to affect the detection of tiny foreign objects.

Description

Technical Field

[0001] The present application relates to the technical field of light inspection equipment, and in particular to a continuous linear fully automatic plastic bottle light inspection system. Background Art

[0002] The current automatic light inspection of domestic large-volume infusion products made of plastic bottles usually uses an area array camera to perform trajectory comparison and foreign object calibration. The vertically transported plastic bottles are rotated and shaken vertically to allow the foreign matter and the liquid medicine to be fully mixed. The area array camera and the bottle being tested remain relatively still, and judgment is made by comparing the movement trajectories of foreign objects and bubbles of different weights.

[0003] The above method usually requires multiple disc mechanisms or circular tracks for multiple transfers, which will cause certain damage to the appearance quality of the bottle. The structure is relatively complex, and a large number of fine bubbles will be generated during the rotation and shaking of the liquid medicine, thereby causing false detection and affecting the detection effect.

[0004] Therefore, in view of the above technical problems, how to provide a light inspection system with a simple structure, good detection effect, and no damage to the bottle body is a technical problem that technical personnel in this field need to solve. Summary of the invention

[0005] The purpose of this application is to provide a continuous linear fully automatic plastic bottle light inspection system, which adopts a linear layout, has a more reasonable movement line, does not need to shake the liquid in the bottle, has a relatively simple transmission mechanism, and does not generate a large number of fine bubbles that affect the detection of tiny foreign objects.

[0006] To achieve the above-mentioned purpose, the present application provides a continuous linear fully automatic plastic bottle light inspection system, including a horizontal conveying mechanism and a clamping mechanism arranged on the horizontal conveying mechanism, the clamping mechanism moves along the conveying direction of the horizontal conveying mechanism, the clamping mechanism is used to clamp the bottle body of the plastic bottle and keep the plastic bottle vertically arranged, and in the conveying direction of the horizontal conveying mechanism, a number of inspection stations for inspecting the appearance of the plastic bottle and the internal liquid are sequentially arranged, and the inspection stations include line scan cameras and / or area array cameras.

[0007] Preferably, the horizontal conveying mechanism comprises an annular guide rail and a power source cooperating with the annular guide rail, the power source is used to drive the slider of the annular guide rail to move along the track, an annular frame is provided on the upper side of the annular guide rail, and a guide groove is provided on the annular frame;

[0008] The clamping mechanism includes a fixed jaw fixedly connected to the sliding block and an opening and closing jaw hinged to the fixed jaw, the middle portion of the opening and closing jaw is hinged to the fixed jaw via a pin shaft, the first end of the opening and closing jaw extends outward from the annular frame and cooperates with the fixed jaw for clamping or loosening the body of the plastic bottle, the second end of the opening and closing jaw is provided with a guide wheel, the guide wheel is arranged in the guide groove, and the rotation angle of the opening and closing jaw relative to the fixed jaw is changed according to the guide path of the guide groove to achieve clamping or loosening of the bottle body.

[0009] Preferably, the inspection stations include a light-colored foreign matter and scratch inspection station, a dark-colored foreign matter inspection station, a bottle body appearance, liquid level and change-free inspection station, a bottle top pull ring and rubber stopper inspection station, and a bottom pull ring and surrounding bottle impurity inspection station. The light-colored foreign matter and scratch inspection station, the dark-colored foreign matter inspection station, and the bottle body appearance, liquid level and change-free inspection station adopt a line scan camera, and the bottle top pull ring and rubber stopper inspection station and the bottom pull ring and surrounding bottle impurity inspection station adopt an area array camera.

[0010] Preferably, it also includes a feeding channel for conveying the plastic bottle to the clamping mechanism, and the feeding channel is used to convey the plastic bottle to a preset position to enter the clamping mechanism.

[0011] Preferably, a limiting assembly is provided at the end of the feed channel, and the limiting assembly includes a vertical limiting structure and a transverse limiting structure. The vertical limiting structure includes a lower supporting member and an upper bottle pressing member to limit the vertical position of the plastic bottle, and the transverse limiting structure includes a side limiting member to limit the transverse position of the plastic bottle.

[0012] Preferably, it also includes a return channel for products that fail the first inspection. The starting end of the return channel for products that fail the first inspection is located at the rear side of the inspection station for receiving products that fail the first inspection. The end of the return channel for products that fail the first inspection is connected to the starting end of the transfer channel. The end of the transfer channel is connected to the feed channel for re-transmitting the products that fail the first inspection to the clamping mechanism for secondary inspection.

[0013] Preferably, it also includes a secondary light inspection unqualified channel, the starting end of which is located at the rear side of the inspection station, for receiving products that fail the secondary light inspection and transporting the unqualified products to the light inspection unqualified storage area.

[0014] Preferably, it also includes a discharge bottle pushing mechanism arranged at the rear side of the inspection station, the discharge bottle pushing mechanism includes a bottle blocking plate and a discharge channel for receiving products that pass the light inspection, and the clamping mechanism opens at the bottle blocking plate to allow the products that pass the light inspection to enter the discharge channel.

[0015] Preferably, a mouth tube scratch and combination cover inspection station and a combination cover unqualified rejection station are provided on the periphery of the discharge channel, and a mouth tube scratch and combination cover inspection station is provided at the rear side of the mouth tube scratch and combination cover inspection station, and a qualified product output channel and a combination cover unqualified channel are provided at the discharge end of the discharge channel. Products qualified by the mouth tube scratch and combination cover inspection station enter the qualified product output channel and are transported to the qualified product storage area, and products unqualified by the mouth tube scratch and combination cover inspection station are moved to the combination cover unqualified channel by the combination cover unqualified rejection station and are transported to the combination cover unqualified storage area.

[0016] Preferably, it also includes a manual re-inspection and random inspection station for manually inspecting unqualified products in the secondary light inspection unqualified channel and the combination cover unqualified channel.

[0017] Compared with the above-mentioned background technology, the present application realizes vertical clamping of plastic bottles through a clamping mechanism, and realizes a linear layout through a horizontal conveying mechanism. The dynamic line is more reasonable, and the appearance, internal solution, liquid level, etc. of the plastic bottle can be inspected in a vertical state. There is no need to shake the liquid medicine in the bottle body, so as to avoid the generation of a large number of fine bubbles that affect the detection of tiny foreign objects. At the same time, it gets rid of the limitations of multi-stage transportation and rotation of plastic bottles, etc., and can meet the various needs of different customers, effectively improving the overall operating efficiency. At the same time, only the clamping mechanism is in contact with the bottle body, avoiding erroneous detection caused by multi-stage transportation contaminated particles and the conveying device itself. In addition, based on the linear layout, the present application can set a line scan camera for inspection at some inspection stations. The camera does not need to be stationary relative to the plastic bottle. It only needs the plastic bottle to move along a straight line, and the camera is fixed. The structure is simpler and more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0019] Figure 1 A top view of the continuous linear fully automatic plastic bottle light inspection system provided in an embodiment of the present application;

[0020] Figure 2 A front view of the continuous linear fully automatic plastic bottle light inspection system provided in the embodiment of the present application;

[0021] Figure 3 A schematic diagram of the coordination structure of the horizontal conveying mechanism and the clamping mechanism provided in the embodiment of the present application;

[0022] Figure 4A schematic diagram of the structure of the clamping mechanism provided in the embodiment of the present application;

[0023] Figure 5 A schematic diagram of the front structure of the limit assembly provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of the side structure of the limit assembly provided in an embodiment of the present application;

[0025] Figure 7 This is a schematic diagram of the structure of the discharging and bottle-moving mechanism provided in an embodiment of the present application.

[0026] In the figure: 1-feeding channel; 2-limiting component; 3-horizontal conveying mechanism; 4-black background plate; 5-white background plate; 6-bottle appearance, liquid level and deterioration detection station; 7-bottle top pull ring and rubber plug detection station; 8-secondary light inspection unqualified channel; 9-manual re-inspection and random inspection station; 10-combination cover unqualified channel; 11-qualified product output channel; 12-mouth tube scratch and combination cover detection station; 13-discharging channel; 14-first inspection unqualified return channel; 15-dark foreign matter in the bottle Inspection station; 16-clamping mechanism; 17-light-colored foreign matter and scratch inspection station in the bottle; 18-lane changing mechanism; 19-transfer channel; 20-bottom pull ring and impurity inspection station in the circumference of the bottle; 21-cleaning component; 22-lower support; 23-track; 24-slider; 25-fixed clamp; 26-guide groove; 27-opening and closing clamp; 28-pin shaft; 29-guide wheel; 30-upper bottle pressure part; 31-side limit part; 32-bottle baffle plate; 33-unqualified combination cover rejection station. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] like Figure 1 As shown, in this embodiment, a continuous linear fully automatic plastic bottle light inspection system is provided, which includes a horizontal conveying mechanism 3 and a clamping mechanism 16 arranged on the horizontal conveying mechanism 3. The horizontal conveying mechanism 3 is mainly used to convey various materials in the horizontal direction, such as a belt conveyor, a roller conveyor, a guide rail slider conveying device, etc., to ensure that the materials can be conveyed in the horizontal direction. The clamping mechanism 16 can move along the horizontal conveying mechanism 3. The number of the clamping mechanisms 16 is multiple and distributed at a certain interval, so as to meet the demand for clamping multiple plastic bottles, and the plastic bottles do not interfere with each other.

[0031] In this embodiment, the clamping mechanism 16 itself can move along with the conveying direction of the horizontal conveying mechanism 3, and the clamping mechanism 16 can also clamp the body of the plastic bottle, so that the plastic bottle remains vertically arranged. In the conveying direction of the horizontal conveying mechanism 3, a number of inspection stations for inspecting the appearance of the plastic bottle and the internal liquid medicine are sequentially arranged, so as to realize the light inspection of the plastic bottle. Light inspection: an important checkpoint for controlling the intrinsic quality of transparent bottled medicines or beverages. If not handled properly, serious consequences will occur. When working, the product is backlit, and the impurities and suspended matter in the product after movement can be clearly seen through a magnifying glass or the human eye, thereby preventing the omission of unqualified products. It is mainly suitable for the inspection of transparent bottles in the pharmaceutical, food, chemical, pesticide and other industries, and for the removal of unqualified products.

[0032] In summary of the above embodiments, the present application realizes vertical clamping of the plastic bottle through the clamping mechanism 16, and realizes a linear layout through the horizontal conveying mechanism 3. The dynamic line is more reasonable, and the appearance, internal solution, liquid level, etc. of the plastic bottle can be inspected in a vertical state. There is no need to shake the liquid medicine in the bottle body, so as to avoid the generation of a large number of fine bubbles that affect the detection of tiny foreign objects. At the same time, it gets rid of the limitations of multi-stage transportation and rotational connection of plastic bottles, etc., and can meet the various needs of different customers, effectively improving the overall operating efficiency. At the same time, only the clamping mechanism 16 is in contact with the bottle body, avoiding erroneous detection caused by multi-stage transportation contaminated particles and the conveying device itself. In addition, based on the linear layout, the present application can set a line scan camera for detection at some inspection stations. The camera does not need to be stationary relative to the plastic bottle. It only needs the plastic bottle to move along a straight line, and the camera is fixed. The structure is simpler and more reliable.

[0033] In some embodiments, the horizontal conveying mechanism 3 includes an annular guide rail and a power source that cooperates with the annular guide rail. Figure 1 and Figure 3The power source is used to drive the slider 24 of the annular guide rail to move along the track 23. The power source can be a servo motor, a stepper motor, etc., or a magnetic levitation conveying system, etc. There are no excessive restrictions here, and it is sufficient to ensure that the slider 24 can be driven to move along the track 23.

[0034] An annular frame is provided on the upper side of the annular guide rail, and a guide groove 26 is provided on the annular frame. The clamping mechanism 16 includes a fixed clamping claw 25 fixedly connected to the slider 24 and an opening and closing clamping claw 27 hinged to the fixed clamping claw 25. Figure 4 The middle part of the opening and closing clamping jaw 27 is hinged to the fixed clamping jaw 25 through the pin shaft 28, and the first end of the opening and closing clamping jaw 27 extends out of the annular frame and cooperates with the fixed clamping jaw 25, so that the bottle body of the plastic bottle can be clamped or loosened by the rotation of the opening and closing clamping jaw 27. The second end of the opening and closing clamping jaw 27 is provided with a guide wheel 29, which is arranged in the guide groove 26 and is rolled in the guide groove 26. Therefore, the rotation angle of the opening and closing clamping jaw 27 relative to the fixed clamping jaw 25 can be changed through the guide path of the guide groove 26, thereby achieving the clamping or loosening of the bottle body.

[0035] The bottle body is fixed and positioned by an openable and closable clamping jaw, and the opening and closing of the opening and closing clamping jaw 27 is controlled by the trajectory of the guide groove 26. The structure is safe and reliable, and the damage to the bottle body caused by the opening and closing problem of the clamping mechanism 16 is avoided to the greatest extent.

[0036] Of course, for the above-mentioned single-sided opening and closing form, in some embodiments, a double-sided opening and closing method can also be adopted, that is, the guide wheels 29 of the two clamping jaws are guided respectively by two guide grooves 26, so as to adjust the clamping or loosening state of the two clamping jaws.

[0037] The clamping mechanism 16 of the present application can be clamped at any position of the plastic bottle, and is compatible with round bottles, flat bottles, stand-up bags and other products for testing. It is also compatible with a variety of specifications such as 100~500ML, with strong versatility, convenience and speed.

[0038] In some embodiments, the system further includes a feed channel 1 for conveying plastic bottles to the clamping mechanism 16. Specifically, the plastic bottle infusion products that have completed terminal sterilization are spaced apart by a multi-stage chain conveyor, and each plastic bottle infusion product is accurately placed into the clamping mechanism 16 through the feed channel 1 and the linkage with the horizontal conveying mechanism 3. In addition, the present application has relatively low requirements for conveying incoming materials, and the spacing of the clamping mechanism 16 can be adjusted to adapt to different incoming material conditions, ensuring that each plastic bottle can correspond to a clamping mechanism 16, thereby achieving feeding accuracy and reliability.

[0039] A limiting assembly 2 is provided at the end of the feed channel 1. The limiting assembly 2 includes a vertical limiting structure and a lateral limiting structure. The vertical limiting structure includes a lower support member 22 and an upper bottle pressing member 30. Please refer to Figure 5 and Figure 6 , to limit the vertical position of the plastic bottle, and the lateral limiting structure includes a side limiting member 31 to limit the lateral position of the plastic bottle. When the plastic bottle enters the clamping mechanism 16, the combination cover is limited by the vertical limiting structure, and the bottle body is limited by the lateral limiting structure, so as to ensure that each plastic bottle can reach the predetermined position and accurately enter the clamping mechanism 16. In addition, the real-time dynamic spacing adjustment of the plastic bottles can be performed by the limiting component 2, for example, the spacing of the plastic bottles entering the clamping mechanism 16 is adjusted through the blocking effect of the vertical limiting structure or the lateral limiting structure, so as to ensure the accuracy and reliability of feeding.

[0040] When the clamping mechanism 16 reaches the predetermined position of the plastic bottle, the opening and closing clamping claw 27 changes from an open state to a closed state under the action of the guide wheel 29 and the guide groove 26, thereby clamping the plastic bottle and keeping the plastic bottle moving in a vertical state. Repeat the above actions to clamp the continuously incoming plastic bottle large infusion products at equal intervals and stably on the horizontal conveying mechanism 3 and transmit them along the running direction of the equipment.

[0041] It should be pointed out that the above mentioned feeding is limited by the limiting component 2. Of course, the material can also be loaded after the disc is arranged to ensure that the material can accurately reach the specified position and be clamped by the clamping mechanism 16. It will not be repeated here and all fall within the scope of protection of this application.

[0042] Under default conditions, the bottle body is clean. A plasma clean compressed air curtain can be added at the place where the plastic bottle enters the clamping mechanism 16 to blow and remove the particles contaminated on the bottle body to improve the accuracy of the light inspection; a cleaning component 21 can also be set on the lower support member 22, please refer to Figure 5 The cleaning component 21 uses a roller brush, or a roller compressed air brush, or an ion wind clean compressed air blower, etc. There are no excessive restrictions here, and all fall within the protection scope of this application.

[0043] The above inspection stations include the inspection station 17 for light-colored foreign matter and scratches in the bottle, the inspection station 15 for dark-colored foreign matter in the bottle, the inspection station 6 for bottle appearance, liquid level and deterioration, the inspection station 7 for top pull ring and rubber plug, and the inspection station 20 for bottom pull ring and impurities in the bottle around the bottle; please refer to Figure 1 and Figure 2 First, the plastic bottle is inspected at the light-colored foreign matter and scratch detection station 17 in cooperation with the black background plate 4 for white foreign matter, white floating objects, and scratches on the bag in the bottle; secondly, the dark-colored foreign matter detection station 15 in cooperation with the white background plate 5 is used to detect black particles, hair, and dark-colored foreign matter in the bottle; then, the bottle body appearance, liquid level, and change-destruction detection station 6 are inspected, and finally, the bottle top pull ring and rubber stopper detection station 7, the bottom pull ring, and the impurity detection station 20 around the bottle are inspected.

[0044] In some embodiments, the light-colored foreign matter and scratch detection station 17, the dark-colored foreign matter detection station 15, and the bottle appearance, liquid level and deterioration detection station 6 can use line scan cameras, and the top pull ring and rubber stopper detection station 7 and the bottom pull ring and impurity detection station 20 can use area array cameras. Compared with area array cameras, line scan cameras are more suitable for linear layout light inspection systems, and can achieve accurate detection of appearance, internal solution, liquid level, etc.

[0045] Please refer to Figure 1 The system also includes a first inspection unqualified return channel 14, the starting end of which is located at the rear side of the inspection station. In this embodiment, the reference basis of the front and rear sides is the conveying direction, that is, in the conveying direction, the plastic bottle first reaches the inspection station and then reaches the first inspection unqualified return channel 14. It should be pointed out that after passing through the above-mentioned light-colored foreign matter and scratch detection station 17, dark-colored foreign matter detection station 15, bottle body appearance, liquid level and change detection station 6, bottle top pull ring and rubber plug detection station 7, bottom pull ring and impurity detection station 20 in the circumference of the bottle, qualified products will continue to be conveyed to the subsequent stations along the horizontal conveying mechanism 3 under the clamping of the clamping mechanism 16, and unqualified products will change the clamping mechanism 16 to an open state under the action of the cylinder, that is, the cylinder can drive the opening and closing jaws 27 to open, so that the unqualified products fall into the first inspection unqualified return channel 14. Of course, the unqualified products can also be placed in the first inspection unqualified return channel 14 by clamping, such as a robotic arm.

[0046] In order to ensure that the return channel 14 that fails the first inspection can store as many products as possible, the channel can adopt the form of small distance stepping to store materials. The end of the return channel 14 that fails the first inspection is connected to the transfer channel 19, and the end of the transfer channel 19 is connected to the feed channel 1, so that the unqualified products in the first inspection can be re-transported to the clamping mechanism 16 for secondary inspection.

[0047] It should be pointed out that when the unqualified products of the first inspection are conveyed to the feed channel 1 through the transfer channel 19, the bottle body may turn. Therefore, in this embodiment, a lane-changing mechanism 18 may be provided at the head end of the transfer channel 19. The lane-changing mechanism 18 may be an inclined plate. When the bottle body contacts the inclined plate, the angle of the bottle body may be changed, and after passing through the inclined plate, the position of the bottle body may also be changed, so that the bottle body enters the transfer channel 19. In other words, the inclined plate may be used as a limiting device, so that the bottle body enters the transfer channel 19 from the unqualified return channel 14 of the first inspection, and at the same time, the placement angle of the bottle body may be changed, so that the bottle body enters the feed channel 1 in the correct posture. Of course, the switching mechanism may also be a device such as a robotic arm to ensure that the lane-changing operation of the product can be realized and that the bottle body enters the transfer channel 19 in the correct posture.

[0048] Taking into account that the feed channel 1 needs to receive uninspected products on the one hand, and unqualified products that have passed the first inspection on the other hand, in order to avoid confusing the two products, a blocking mechanism can also be set on the feed channel 1, that is, when the uninspected products are batched or the gap between vehicles is long, the blocking mechanism is activated to prevent the uninspected products from entering the feed channel 1. At this time, the unqualified products that have passed the first inspection on the transfer channel 19 can be placed into the feed channel 1 through the merging mechanism for secondary inspection.

[0049] Among them, there are many ways to set up the blocking mechanism and the merging mechanism. For example, the blocking mechanism can be a power cylinder such as a cylinder with a blocking plate, which can extend the baffle plate into the feed channel 1 to prevent untested products from entering the feed channel 1; the merging mechanism can also be a power cylinder with a baffle plate, which pushes the product in the transfer channel 19 into the feed channel 1 through the baffle plate, or the merging mechanism uses a mechanical arm to clamp the product in the transfer channel 19 and put it into the feed channel 1. No more restrictions are made on the blocking mechanism and the merging mechanism here, as long as they can achieve the above functions, they all fall within the protection scope of this application.

[0050] Please refer to Figure 1 The system also includes a secondary channel for unqualified lamp parts, that is, after the unqualified products in the first inspection pass the secondary lamp inspection at the inspection station, the qualified products will continue to be transported to the subsequent station along the horizontal conveying mechanism 3 under the clamping of the clamping mechanism 16; the unqualified products will enter the secondary lamp inspection unqualified channel 8, specifically, the starting end of the secondary lamp inspection unqualified channel 8 is set at the rear side of the inspection station, and the opening and closing clamping claws 27 can be opened by a power cylinder such as a cylinder, so that the unqualified products in the secondary lamp inspection fall into the unqualified secondary lamp inspection channel 8, or the unqualified products in the secondary lamp inspection can be placed in the unqualified secondary lamp inspection channel 8 by a robotic arm clamping method, and the unqualified products are transported to the unqualified lamp inspection storage area through the unqualified secondary lamp inspection channel 8.

[0051] It can be seen that the present application adopts a two-light inspection method to prevent missed inspections, false inspections, etc., and improve inspection efficiency and accuracy.

[0052] Please refer to Figure 1 and Figure 7The system also includes a discharging bottle-push mechanism arranged at the rear side of the inspection station. Products that pass the light inspection will be transported to the discharging bottle-push mechanism position along with the horizontal conveying mechanism 3, and the products will be discharged through the bottle-blocking plate 32, so that the products that pass the light inspection will enter the discharging channel 13. Specifically, the discharging position of qualified products adopts the form of discharging by the bottle-blocking plate 32, which can only allow the clamping mechanism 16 to pass through, and the bottle-blocking plate 32 interferes with the guide wheel here, so that the opening and closing clamping claws 27 are opened, and the product slides into the discharging channel 13; at the same time, in order to ensure that the plastic bottle products are prevented from tipping over along the conveying direction due to inertia, a partition can be set on the discharging channel 13 to ensure that the bottle body enters the discharging channel 13 in a vertical state, which is safe and reliable, and fundamentally avoids the situation where the clamping mechanism 16 brings the material back to the entrance.

[0053] In addition, a mouth tube scratch and combined cover detection station 12 and a combined cover unqualified rejection station 33 are provided on the side of the discharge channel 13, and the mouth tube scratch and combined cover detection station 12 are provided on the rear side. Figure 7 The discharging and bottle-selecting mechanism of the present application adopts the form of discharging bottles by selecting materials, and the equally spaced selecting blocks step quickly. At the same time, the discharging channel 13 integrates the mouth tube scratch and combination cover welding quality inspection stations and the removal of unqualified combination covers, which is fast and efficient, and the rejection channel discharges materials separately, which is convenient for manual and quick verification.

[0054] Specifically, the discharge end of the discharge channel 13 is provided with a qualified product output channel 11 and a combination cover unqualified channel 10. The qualified products detected by the mouth tube scratch and combination cover detection station 12 enter the qualified product output channel 11 and are transported to the qualified product storage area; the unqualified products detected by the mouth tube scratch and combination cover detection station 12 are moved to the combination cover unqualified channel 10 through the combination cover unqualified rejection station 33 and transported to the combination cover unqualified storage area. Figure 1 It can be seen that the discharge channel 13 and the qualified product output channel 11 can be the same channel, and after passing the inspection of the mouth tube scratch and the combination cover inspection station 12, the qualified products can enter the qualified product output channel 11 in sequence. The unqualified products are moved to the combination cover unqualified channel 10 by the combination cover unqualified rejection station 33. The combination cover unqualified rejection station 33 can be in the form of a power cylinder plus a blocking plate, that is, the unqualified products can be pushed into the combination cover unqualified channel 10 through the blocking plate.

[0055] It should be pointed out that for the two channels where the product needs to be changed, a robot arm can be used to clamp the product and place it on the other channel. Of course, each channel should have a corresponding drive component such as a motor to drive the channel to transport normally.

[0056] The above-mentioned inspection stations are for illustration only. Different inspection stations or cameras can be added according to actual inspection requirements, and no excessive restrictions are imposed here.

[0057] Please refer to Figure 1 The system also includes a manual re-inspection and sampling station 9, which is used to manually detect unqualified products on the secondary light inspection unqualified channel 8 and the combination cover unqualified channel 10; the manual re-inspection and sampling station 9 can, on the one hand, classify and collect the products rejected by the leak detection and light inspection, and conduct manual re-inspection; on the other hand, when the equipment fails, it can temporarily perform low-speed manual inspection, and can also conduct sampling inspection on qualified products, thereby increasing the reliability and practicality of the entire system.

[0058] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0059] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A continuous linear fully automatic plastic bottle light inspection system, characterized in that: It comprises a horizontal conveying mechanism (3) and a clamping mechanism (16) arranged on the horizontal conveying mechanism (3), wherein the clamping mechanism (16) moves along the conveying direction of the horizontal conveying mechanism (3), and the clamping mechanism (16) is used to clamp the body of the plastic bottle and keep the plastic bottle vertically arranged. In the conveying direction of the horizontal conveying mechanism (3), a plurality of inspection stations for inspecting the appearance of the plastic bottle and the internal liquid medicine are arranged in sequence, and the inspection stations include line scan cameras and / or area array cameras; The horizontal conveying mechanism (3) comprises an annular guide rail and a power source cooperating with the annular guide rail, the power source being used to drive a slider (24) of the annular guide rail to move along a track (23), an annular frame being provided on the upper side of the annular guide rail, and a guide groove (26) being provided on the annular frame; The clamping mechanism (16) comprises a fixed clamping jaw (25) fixedly connected to the slider (24) and an opening and closing clamping jaw (27) hinged to the fixed clamping jaw (25); the middle part of the opening and closing clamping jaw (27) is hinged to the fixed clamping jaw (25) via a pin shaft (28); the first end of the opening and closing clamping jaw (27) extends outward from the annular frame and cooperates with the fixed clamping jaw (25) to clamp or loosen the bottle body of the plastic bottle; the second end of the opening and closing clamping jaw (27) is provided with a guide wheel (29); the guide wheel (29) is arranged in the guide groove (26) and changes the rotation angle of the opening and closing clamping jaw (27) relative to the fixed clamping jaw (25) according to the guide path of the guide groove (26) to achieve clamping or loosening of the bottle body; It also includes a feeding channel (1) for conveying the plastic bottle to the clamping mechanism (16), wherein the feeding channel (1) is used to convey the plastic bottle to a preset position so as to enter the clamping mechanism (16); A limiting assembly (2) is provided at the end of the feed channel (1), the limiting assembly (2) comprising a vertical limiting structure and a transverse limiting structure, the vertical limiting structure comprising a lower support member (22) and an upper bottle pressing member (30) to limit the vertical position of the plastic bottle, and the transverse limiting structure comprising a side limiting member (31) to limit the transverse position of the plastic bottle.

2. The continuous linear fully automatic plastic bottle light inspection system according to claim 1 is characterized in that: The inspection stations include an inspection station for light-colored foreign matter and scratches in the bottle (17), an inspection station for dark-colored foreign matter in the bottle (15), an inspection station for bottle appearance, liquid level and change-out (6), an inspection station for top pull ring and rubber plug (7), and an inspection station for bottom pull ring and surrounding impurities in the bottle (20). The inspection station for light-colored foreign matter and scratches in the bottle (17), the inspection station for dark-colored foreign matter in the bottle (15), and the inspection station for bottle appearance, liquid level and change-out (6) use line scan cameras, and the inspection station for top pull ring and rubber plug (7) and the inspection station for bottom pull ring and surrounding impurities in the bottle (20) use area array cameras.

3. The continuous linear fully automatic plastic bottle light inspection system according to claim 1 is characterized in that: It also includes a return channel (14) for first inspection unqualified products, the starting end of which is located at the rear side of the inspection station and is used to receive first inspection unqualified products, the end of which is connected to the starting end of a transfer channel (19), and the end of which is connected to the feed channel (1) and is used to transport the first inspection unqualified products back to the clamping mechanism (16) for secondary inspection.

4. The continuous linear fully automatic plastic bottle light inspection system according to claim 3 is characterized in that: It also includes a secondary light inspection unqualified channel (8), the starting end of which is arranged at the rear side of the inspection station, and is used to receive products that fail the secondary light inspection and transport the unqualified products to a light inspection unqualified storage area.

5. The continuous linear fully automatic plastic bottle light inspection system according to claim 4 is characterized in that: It also includes a discharging and bottle-pushing mechanism disposed at the rear side of the inspection station, the discharging and bottle-pushing mechanism including a bottle blocking plate (32) and a discharging channel (13) for receiving products that pass the light inspection, the clamping mechanism (16) opening at the bottle blocking plate (32) to allow products that pass the light inspection to enter the discharging channel (13).

6. The continuous linear fully automatic plastic bottle light inspection system according to claim 5 is characterized in that: The discharge channel (13) is provided with a mouth tube scratch and combined cap detection station (12) and a combined cap unqualified rejection station (33) arranged at the rear side of the mouth tube scratch and combined cap detection station (12). The discharge end of the discharge channel (13) is provided with a qualified product output channel (11) and a combined cap unqualified channel (10). The qualified products detected by the mouth tube scratch and combined cap detection station (12) enter the qualified product output channel (11) and are transported to the qualified product storage area. The unqualified products detected by the mouth tube scratch and combined cap detection station (12) are moved to the combined cap unqualified channel (10) by the combined cap unqualified rejection station (33) and are transported to the combined cap unqualified storage area.

7. The continuous linear fully automatic plastic bottle light inspection system according to claim 6 is characterized in that: It also includes a manual re-inspection and sampling station (9) for manually inspecting unqualified products in the secondary light inspection unqualified channel (8) and the combination cover unqualified channel (10).

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