Visual detection device for medicine bottle box support

Abstract

The visual detection device comprises a rack and a visual detection lens, a first conveying belt and a second conveying belt are horizontally installed on the rack, the visual detection lens is installed above the first conveying belt, and a discharging opening is formed in one side, behind the visual detection lens, of the first conveying belt; the second conveying belt is arranged at the discharging opening; a waste material removing mechanism is arranged above the two conveying belts, and the waste material removing mechanism is used for shifting unqualified charging box supports on the first conveying belt to the second conveying belt through the discharging opening; the tail of the second conveying belt is connected with a waste bin on the rack, and a stored material lifting mechanism is vertically arranged in the waste bin. The device can be used for efficiently detecting the box supports filled with the medicine bottles, not only can be used for accurately removing the support boxes which are lack of the medicine bottles and unqualified in medicine bottle lettering, but also can be used for effectively avoiding the problems of bottle flying, bottle breaking and the like when the box supports are removed.

Description

Technical Field

[0001] The invention belongs to the field of medicine bottle detection equipment, and in particular relates to a medicine bottle box tray visual detection device. Background Art

[0002] Medicine bottles such as ampoules are usually placed in plastic trays for box packaging after the coding and printing process. Before box packaging, the medicine bottles in the trays need to be inspected to ensure quality. Existing detection devices generally use visual detection lenses to take photos and detect, and identify medicine trays with missing bottles, missing words on the bottle body, or too shallow characters. Existing detection devices generally use cylinders or air guns to remove unqualified trays on the conveyor belt, and the medicine bottles can be recycled after being cleaned and scrubbed. However, due to the high-speed transmission of the trays on the conveyor belt, when the trays are removed from the conveyor belt by structures such as cylinders, problems such as flying bottles and broken bottles often occur, resulting in the scrapping of medicine bottles, which not only affects the operation of the production line, but also causes serious waste. Summary of the invention

[0003] In order to address the deficiencies in the prior art, the present invention aims to provide a visual inspection device for medicine bottle trays, which can efficiently inspect trays containing medicine bottles. It can not only accurately remove trays with missing bottles or unqualified medicine bottles printed on them, but can also effectively avoid problems such as flying bottles and broken bottles when removing trays.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: A visual inspection device for medicine bottle box trays comprises a frame and a visual inspection lens, wherein a first conveyor belt and a second conveyor belt are horizontally mounted on the frame, the visual inspection lens is mounted above the first conveyor belt, a discharge port is provided on one side of the first conveyor belt behind the visual inspection lens, and the second conveyor belt is arranged at the discharge port; a waste rejection mechanism is arranged above the two conveyor belts, and the waste rejection mechanism transfers unqualified loaded box trays on the first conveyor belt to the second conveyor belt through the discharge port; the second conveyor belt is mounted parallel to the side of the first conveyor belt, and the two conveyor belts have the same feeding direction; the tail of the second conveyor belt is connected to the feed port on one side of the waste bin on the frame, and a material storage lifting mechanism is vertically arranged in the waste bin; an upper limit plate is arranged at the top of the waste bin at a level higher than the feed port.

[0005] Preferably, the first conveyor belt is a transparent conveyor belt, and an illuminating lamp is installed upward below the transparent conveyor belt.

[0006] Preferably, a transition plate is fixedly provided at the gap between the two conveyor belts; and a baffle plate is provided on the side of the second conveyor belt away from the discharge port.

[0007] Preferably, the waste rejection mechanism comprises a synchronous belt transmission assembly and a push rod, the synchronous belt transmission assembly is horizontally and tiltedly installed above the two conveyor belts along the unloading direction, and the push rod is fixedly connected to the synchronous belt transmission assembly.

[0008] Preferably, the synchronous belt drive assembly includes a plurality of horizontal synchronous belts that are arranged side by side and rotate synchronously, the push rod is vertically fixed to the belt surface of the horizontal synchronous belt, and the push rods on different horizontal synchronous belts are arranged obliquely; when the push rod rotates to the bottom of the synchronous belt, the arrangement direction of the push rod is parallel to the feeding direction of the two transmission belts.

[0009] Preferably, the material storage lifting mechanism includes a synchronous belt lifting assembly, and the synchronous belt lifting assembly includes a pallet and a lifting synchronous belt. The pallet is movably arranged in the waste bin, and the pallet is fixedly connected to the vertically arranged lifting synchronous belt.

[0010] Preferably, the material storage lifting mechanism further comprises a slide rail vertically mounted in the waste material bin, and the support plate is vertically slidably mounted on the slide rail.

[0011] Preferably, the end of the upper limit plate is horizontally hinged to the side wall of the waste bin away from the feed opening.

[0012] Preferably, a first photoelectric switch is installed on one side of the first conveyor belt at a position corresponding to the visual detection lens; a second photoelectric switch and a third photoelectric switch for detecting material levels are installed above and below the waste bin, respectively.

[0013] Preferably, a plurality of limiting rods for limiting the rising box support are vertically fixed at the opening of the waste bin.

[0014] The present invention has the following beneficial effects: 1. The first photoelectric switch of the present invention is used to detect that when a box tray passes by on the first conveyor belt, the visual inspection lens is activated to take pictures for inspection. Since the first conveyor belt is transparent, the lighting below can shine through the first conveyor belt onto the plastic box tray, thereby illuminating the glass medicine bottle, so that the visual inspection lens can effectively identify and detect the quality of the character printing on the medicine bottle.

[0015] 2. When the visual inspection lens detects that there is a problem with the tray loading or the printing of the medicine bottle being transported at high speed on the first conveyor belt, the tray will be removed from the discharge port by the synchronous belt drive assembly when it moves to the discharge port. During this period, since the synchronous belt drive assembly is set at a certain angle to the two conveyor belts, and the three push rods are parallel to the first drive belt under the three horizontal synchronous belts, when the horizontal synchronous belt is in motion, the three push rods can be used to push the problematic tray obliquely toward the discharge port, so that the tray moves along the conveying direction of the first conveyor belt while pushing it to move horizontally toward the discharge port. The tray moves at high speed when being transported on the conveyor belt. Compared with the prior art of vertically pushing / blowing and removing the discharged material by a cylinder or an air gun, the waste rejection mechanism arranged horizontally and obliquely in this application makes the tray move more smoothly when screening the discharged material, effectively avoiding the problems of flying bottles and broken bottles during the movement of the tray, ensuring the integrity of the medicine bottles in the tray being screened, so that the medicine bottles can be recycled again.

[0016] 3. The problematic box trays removed by the waste rejection mechanism are sent to the pallet in the waste bin via the second conveyor belt. After the material is loaded on the pallet, it will be detected by the second photoelectric switch above, and the lifting and lowering synchronous belt will be activated to drive the pallet down one station, so that a layer of box tray height is reserved between the feeding port of the waste bin and the box tray on the top layer of the pallet, in preparation for the next feeding; the above actions are repeated after each feeding of the waste bin until the third photoelectric switch below detects the material level, and then the touch panel and warning light will be used to prompt the staff to pick up the material. After the staff starts the unloading operation, the lifting and lowering synchronous belt will drive the pallet to rise to the maximum height, thereby lifting out the entire material stored in the waste bin. After the staff takes it out, the lifting and lowering synchronous belt drives the pallet to reset to the topmost station to standby.

[0017] 4. A plurality of limit rods are vertically fixed at the opening of the waste bin, which can effectively limit the box tray ejected from the waste bin to prevent the box tray from tipping over after being ejected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the installation of the conveyor belt of the present invention; Figure 4 It is a structural schematic diagram of the waste removal mechanism of the present invention; Figure 5 It is a schematic diagram of the installation of the second conveyor belt and the waste bin of the present invention; Figure 6 This is a cross-sectional view of the interior of the waste bin of the present invention. DETAILED DESCRIPTION

[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of use of the present invention.

[0020] like Figure 1-6 As shown, the present invention proposes a visual inspection device for medicine bottle trays, including a frame 1 and a visual inspection lens 13. The frame 1 is provided with a transparent outer shell guard plate 11 to facilitate observation of the operation of the device. A human-machine interactive touch panel 12 is installed on the housing 41. The touch panel 12 is integrated with a PLC control system for regulating and displaying the operating conditions and operating parameters of the conveyor belt, motor, photoelectric switch and other components of the device. A first conveyor belt 2 and a second conveyor belt 3 are horizontally installed on the frame 1, and the visual inspection lens 13 is installed above the first conveyor belt 2.

[0021] Among them, the box tray containing the medicine bottle is generally made of a plastic material that can transmit light, and in this application, the first conveyor belt 2 adopts a transparent conveyor belt, and a lighting lamp is installed upward at the position opposite to the visual inspection lens 13 below the transparent conveyor belt. A first photoelectric switch is installed on one side of the first conveyor belt 2 at a position corresponding to the visual inspection lens 13. The first photoelectric switch is used to detect that when a box tray passes by on the first conveyor belt 2, the visual inspection lens 13 is activated to take pictures and detect. Since the first conveyor belt 2 is transparent, the lighting lamp below can shine through the first conveyor belt 2 on the plastic box tray to illuminate the glass medicine bottle, so that the visual inspection lens 13 can effectively identify and detect the quality of the character printing on the medicine bottle. The visual inspection lens 13 used in this application is a commonly used inspection lens 13 in the prior art, and its principle will not be repeated.

[0022] A feeding port is provided on one side of the first conveyor belt 2 behind the visual inspection lens 13, and a second conveyor belt 3 is provided at the feeding port, and the second conveyor belt 3 is installed parallel to the side of the first conveyor belt 2, and the two conveyor belts have the same feeding direction. A transition plate 14 is fixedly provided at the gap between the two conveyor belts.

[0023] A waste rejection mechanism 4 is provided above the two conveyor belts, and the waste rejection mechanism 4 is used to transfer the unqualified loading box trays on the first conveyor belt 2 to the second conveyor belt 3 through the unloading port. A baffle plate 31 is provided on the side of the second conveyor belt 3 away from the unloading port to limit the box trays that are horizontally transferred to the second conveyor belt 3. Specifically, the waste rejection mechanism 4 includes a synchronous belt transmission assembly and a push rod 43, and the synchronous belt transmission assembly is horizontally and obliquely installed above the two conveyor belts along the unloading direction. Among them, the synchronous belt transmission assembly includes three horizontal synchronous belts 42 horizontally installed on the housing 41, and the three horizontal synchronous belts 42 are arranged side by side and synchronously driven to rotate by the same motor. A push rod 43 is vertically fixed on the belt surface of each horizontal synchronous belt 42, and the push rods 43 on different horizontal synchronous belts 42 are arranged obliquely compared to the horizontal direction of the horizontal synchronous belt 42. When the push rod 43 rotates to the bottom of the synchronous belt, the arrangement direction of the push rod 43 is parallel to the feeding direction of the two transmission belts.

[0024] When the visual inspection lens 13 detects that there is a problem with the tray loading or the printing of the medicine bottle being transported at high speed on the first conveyor belt 2, the tray will be removed from the discharge port by the synchronous belt transmission assembly when it moves to the discharge port. During this period, since the synchronous belt transmission assembly is set at a certain angle with the two conveyor belts, and the three push rods 43 are parallel to the first transmission belt under the three horizontal synchronous belts 42, when the horizontal synchronous belt 42 is in motion, the three push rods 43 can be used to push the problematic tray obliquely toward the discharge port, so that the tray moves along the conveying direction of the first conveyor belt 2 while pushing it to move horizontally toward the discharge port.

[0025] The box tray moves at high speed when being transported on the conveyor belt. Compared with the prior art in which the material is removed by vertical pushing / blowing by a cylinder or an air gun, the waste removal mechanism 4 arranged horizontally and tilted in the present application makes the movement of the box tray more stable when screening the material, and effectively avoids problems such as flying bottles and broken bottles during the movement of the box tray, thereby ensuring the integrity of the medicine bottles in the box tray after screening, so that the medicine bottles can be recycled again.

[0026] The waste bin 5 is vertically arranged on the frame 1, and a feed port 50 connected to the second conveyor is arranged on one side of the upper opening of the waste bin 5. An upper limit plate 51 is also arranged horizontally on one side of the top opening of the waste bin 5 away from the feed port 50, and the setting height of the feed port 50 is lower than the horizontal height of the upper limit plate 51. One end of the upper limit plate 51 is horizontally hinged on the opening side wall of the waste bin 5, and is in a horizontal state during normal operation, and is used to limit the box tray entering the waste bin 5, play a material blocking role, and prevent the box tray or medicine bottle from flying out of the opening of the waste bin 5; it can be rotated open when it is necessary to discharge the waste bin 5.

[0027] A material storage lifting mechanism is vertically arranged in the waste bin 5, and the material storage lifting mechanism includes a synchronous belt lifting assembly driven by a motor and a slide rail 54 vertically installed in the waste bin 5. The synchronous belt lifting assembly includes a support plate 53 and a lifting synchronous belt 55. The support plate 53 is movably arranged in the waste bin 5 and vertically slidably installed on the slide rail 54. The support plate 53 is fixedly connected to the vertically arranged lifting synchronous belt 55. A second photoelectric switch and a third photoelectric switch for detecting material levels are respectively installed above and below the waste bin 5.

[0028] The problematic box trays rejected by the waste rejection mechanism 4 are sent to the pallet 53 in the waste bin 5 via the second conveyor belt 3. After the material is loaded on the pallet 53, it will be detected by the second photoelectric switch above, and the lifting synchronous belt 55 will be activated to drive the pallet 53 to move down one station, so that a layer of box tray height is reserved between the feed port 50 of the waste bin 5 and the box trays on the top layer of the pallet 53, in preparation for the next feeding; thereafter, the waste bin 5 repeats the above action after each feeding until the third photoelectric switch below detects the material level, and then prompts the staff to pick up the material through the touch panel 12 and the warning light. After the staff starts the unloading operation, the lifting synchronous belt 55 will drive the pallet 53 to rise to the maximum height, thereby completely lifting out the material stored in the waste bin 5. After the staff takes it out, the lifting synchronous belt 55 drives the pallet 53 to move down and reset to the topmost station to stand by.

[0029] A plurality of limiting rods 52 are vertically fixed at the opening of the waste bin 5 , and the limiting rods 52 can effectively limit the box tray that is ejected from the waste bin 5 to prevent the box tray from tipping over after being ejected.

[0030] When using the present invention, the visual inspection lens 13 will effectively inspect the box trays transported on the first conveyor belt 2. The box trays that pass the inspection will be sent to the next process via the first conveyor belt 2, and the box trays that fail the inspection will be removed from the unloading port by the synchronous belt drive assembly and sent to the second conveyor belt, and then sent to the pallet 53 in the waste bin 5 via the second conveyor belt. Each time the waste bin 5 is fed and raised and lowered, the synchronous belt 55 drives the pallet 53 to move down one station to prepare for the next feeding.

[0031] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A visual inspection device for a medicine bottle tray, comprising a frame and a visual inspection lens, characterized in that: A first conveyor belt and a second conveyor belt are horizontally mounted on the frame, the visual inspection lens is mounted above the first conveyor belt, a discharge port is provided on one side of the first conveyor belt behind the visual inspection lens, and the second conveyor belt is arranged at the discharge port; a waste rejection mechanism is provided above the two conveyor belts, and the waste rejection mechanism transfers unqualified loading box supports on the first conveyor belt to the second conveyor belt through the discharge port; the second conveyor belt is mounted parallel to the side of the first conveyor belt, and the two conveyor belts have the same feeding direction; the tail of the second conveyor belt is connected to the feed port on one side of the waste bin on the frame, and a material storage lifting mechanism is vertically provided in the waste bin; an upper limit plate is provided at the top of the waste bin at a level higher than the feed port.

2. The visual inspection device for medicine bottle tray according to claim 1, characterized in that: The first conveyor belt is a transparent conveyor belt, and an illuminating lamp is installed upward below the transparent conveyor belt.

3. The visual inspection device for medicine bottle tray according to claim 1, characterized in that: A transition plate is fixedly arranged at the gap between the two conveyor belts; and a material blocking plate is arranged on the side of the second conveyor belt away from the unloading port.

4. The visual inspection device for medicine bottle tray according to claim 1, characterized in that: The waste rejection mechanism comprises a synchronous belt transmission assembly and a push rod. The synchronous belt transmission assembly is horizontally and tiltedly installed above the two conveyor belts along the unloading direction of the conveyor belts, and the push rod is fixedly connected to the synchronous belt transmission assembly.

5. The visual inspection device for medicine bottle tray according to claim 4, characterized in that: The synchronous belt transmission assembly includes a plurality of horizontal synchronous belts arranged side by side and rotating synchronously. The push rods are vertically fixed to the belt surfaces of the horizontal synchronous belts, and the push rods on different horizontal synchronous belts are arranged obliquely. When the push rods rotate to the bottom of the synchronous belts, the arrangement direction of the push rods is parallel to the feeding direction of the two transmission belts.

6. The visual inspection device for medicine bottle tray according to claim 1, characterized in that: The material storage lifting mechanism includes a synchronous belt lifting component, and the synchronous belt lifting component includes a support plate and a lifting synchronous belt. The support plate is movably arranged in the waste bin, and the support plate is fixedly connected to the vertically arranged lifting synchronous belt.

7. The visual inspection device for medicine bottle tray according to claim 6, characterized in that: The material storage lifting mechanism also includes a slide rail vertically installed in the waste material bin, and the support plate is vertically slidably installed on the slide rail.

8. The visual inspection device for medicine bottle tray according to claim 1, characterized in that: The end of the upper limit plate is horizontally hinged on the side wall of the waste bin away from the feed opening.

9. The visual inspection device for medicine bottle tray according to claim 1, characterized in that: A first photoelectric switch is installed at a position corresponding to the visual detection lens on one side of the first conveyor belt; a second photoelectric switch and a third photoelectric switch for detecting material levels are installed above and below the waste bin, respectively.

10. The visual inspection device for medicine bottle tray according to claim 1, characterized in that: A plurality of limiting rods for limiting the position of the rising box support are vertically fixed at the opening of the waste bin.

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