A pharmaceutical bottle rejection device

Abstract

The present invention relates to the technical field of pharmaceutical packaging equipment, in particular to a waste vial rejection device, which includes a bottle feeding mechanism, a vision inspection mechanism, and a waste rejection mechanism that are connected in sequence; the star wheels of the vision inspection mechanism and the waste rejection mechanism are both provided with bottle mouth poking openings arranged at equal intervals on the outer edge, and a spring rod is radially installed along the inner side of each bottle mouth poking opening, and the rod body of the spring rod is pushed into the corresponding bottle mouth poking opening by a spring; the camera of the vision inspection mechanism is installed on the side of the vision star wheel, and an encoder is provided on the rotating shaft of the vision star wheel; an annular groove and a waste rejection groove located outside the annular groove are formed on the waste rejection bottom plate, the entrance and the exit of the waste rejection groove are both communicated with the annular groove, and the waste rejection groove has a protruding portion arranged facing the waste bottle channel; the rod body of the spring rod is connected with a limiting shaft, the limiting shaft penetrates through a relief groove formed on the waste rejection star wheel and the lower end is inserted into the annular groove, and a stopper mechanism for controlling the limiting shaft is arranged above the entrance of the waste rejection groove, and the stopper mechanism is controlled by a controller.

Description

Technical Field

[0001] The present invention relates to the technical field of pharmaceutical packaging equipment, and in particular to a waste bottle removing device for medicine bottles. Background Art

[0002] After the rubber stoppers are put on ampoules and other medicine bottles, it is necessary to remove the unqualified waste bottles with defects such as missing stoppers, inclined rubber stoppers, and too high rubber stoppers before capping to prevent unqualified products from flowing into qualified products.

[0003] The conventional waste bottle removing method on the filling line is to vacuum adsorb the waste bottles and send them to the removal channel. When removing waste bottles, the vacuum pumping equipment distributes through the air distribution plate to the vacuum suction cups at the end of the bottle discharging turntable. When the vacuum suction cup is at the station where the unqualified bottle is located, the vacuum suction cup sucks the unqualified bottle under the action of vacuum, and then the bottle discharging turntable conveys the unqualified bottle to the waste bottle removing track for waste bottle removal under the rotation drive of the bottle discharging shaft. The defects of such a conventional waste bottle removing mechanism are as follows: the air distribution plate and the bottle discharging turntable are in surface contact and there is relative rotation, which easily causes sealing problems and air leakage, resulting in unstable adsorption of the bottle body. Moreover, it takes a certain amount of time for the vacuum to adsorb and release the bottle body, which affects both the waste bottle removing speed and the conveying speed of normal bottle bodies. Since the waste bottle removing mechanism is arranged on the bottle inlet side of the capping machine, the speed of waste bottle removal will also affect the capping speed of the capping machine. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the above background art, and provide a waste bottle removing device for medicine bottles, which has a simple structure, can remove unqualified medicine bottles before capping, and has a fast waste bottle removing speed without affecting the conveying of normal bottle bodies.

[0005] The technical solution adopted by the present invention is as follows: a waste bottle removing device for medicine bottles includes a bottle inlet mechanism, a vision detection mechanism, and a waste bottle removing mechanism connected in sequence. The vision star wheel of the vision detection mechanism and the waste bottle removing star wheel of the waste bottle removing mechanism are both provided with bottle mouth poking parts arranged at equal intervals on the outer edge. A first elastic rod is radially installed inside each bottle mouth poking part of the vision star wheel, and a second elastic rod is radially installed inside each bottle mouth poking part of the waste bottle removing star wheel. The first rod body of the first elastic rod and the second rod body of the second elastic rod are both pushed into the corresponding bottle mouth poking parts under the action of springs. The camera of the vision detection mechanism is installed on the side of the vision star wheel, and is used to take images of the medicine bottles inside the bottle mouth poking parts of the vision star wheel and transmit them to the control machine for processing. An encoder electrically connected to the control machine is provided on the rotating shaft of the vision star wheel.

[0006] In the rejection mechanism, an annular groove centered on the rotating shaft of the rejection star wheel is formed on the rejection bottom plate, and a rejection groove is located outside the annular groove. Both the inlet and the outlet of the rejection groove communicate with the annular groove, and the rejection groove has a protrusion arranged facing the waste bottle passage; a vertical limiting shaft is connected to the second rod body of the second elastic rod. The limiting shaft penetrates through the avoidance groove formed on the rejection star wheel and its lower end is inserted into the annular groove. Above the inlet of the rejection groove, there is a stop block mechanism for controlling the limiting shaft to stay in the annular groove or enter the rejection groove, and this stop block mechanism is controlled by a controller.

[0007] Further, the first elastic rod includes a first sleeve, a spring, the first rod body and a limiting member; the first sleeve is fixed in the mounting hole formed radially on the vision star wheel, the first rod body is slidably mounted in the first sleeve, a spring for pushing the first rod body outwards is arranged in the first sleeve, and the inner end of the first rod body passes through the tail of the first sleeve and is fixed with the limiting member.

[0008] Further, the second elastic rod includes a second sleeve, a spring, the second rod body and a limiting shaft; the second sleeve is fixed in the mounting hole formed radially on the rejection star wheel, and the avoidance grooves are formed at both the top and the bottom of this mounting hole; the second rod body is slidably mounted in the second sleeve, a spring for pushing the second rod body outwards is arranged in the second sleeve, the limiting shaft is fixed on the second rod body, guiding grooves are formed at both the top and the bottom of the second sleeve, the upper end of the limiting shaft passes through the guiding groove and the avoidance groove at the top of the mounting hole, and the lower end passes through the guiding groove and the avoidance groove at the bottom of the mounting hole and is inserted into the annular groove.

[0009] Further, rollers or bearings are installed at both the upper end and the lower end of the limiting shaft.

[0010] Further, a swing block is provided at the outlet of the rejection groove, and this swing block is rotatably connected to the partition block between the rejection groove and the annular groove.

[0011] Further, the stop block mechanism includes a stop block, a sliding seat, a sliding rod, an eccentric wheel and a motor. The sliding rod is slidably mounted in the sliding seat in the front-back or up-down direction. One end of the sliding rod extends above the rejection star wheel and is fixed with the stop block. The stop block corresponds to the inlet of the rejection groove vertically. The other end of the sliding rod is connected to the eccentric wheel through a connecting block, and the eccentric wheel is driven by the motor.

[0012] Further, an arc surface for guiding the limiting shaft is formed at the front end of the stop block.

[0013] Further, the bottle inlet mechanism includes a bottle inlet star wheel, a bottle inlet bottom plate, a power source, and a bottle inlet guardrail. Equally spaced bottle mouth picking openings are formed at the outer edge of the bottle inlet star wheel. The bottle inlet guardrail is arranged outside the bottle inlet star wheel and has an arc-shaped opening, and this arc-shaped opening is arranged opposite to the outer edge of the bottle inlet star wheel to form a bottle inlet passage.

[0014] Further, in the visual inspection mechanism, a visual guardrail is provided outside the visual star wheel. The visual guardrail has an arc-shaped opening, which is arranged opposite to the outer edge of the visual star wheel to form a visual inspection channel. The front end of the visual inspection channel is connected to the rear end of the bottle inlet channel, and a first guiding block for guiding the medicine bottle into the visual inspection channel is provided at the connection.

[0015] Further, in the rejection mechanism, a rejection guardrail is provided outside the rejection star wheel. The rejection guardrail has an arc-shaped opening, which is arranged opposite to the rejection star wheel to form a qualified bottle channel. A waste bottle channel is also opened on the rejection guardrail. The front ends of the qualified bottle channel and the waste bottle channel are both connected to the rear end of the visual inspection channel, and a second guiding block for guiding the qualified medicine bottle into the qualified bottle channel is provided at the connection.

[0016] The beneficial effects of the present invention are as follows:

[0017] (1) The camera of the visual inspection mechanism takes pictures of the bottle body and transmits them to the control machine for processing. After detecting unqualified medicine bottles, they are rejected by the rejection star wheel. The detection speed is fast and the result is accurate.

[0018] (2) During rejection, the stopper mechanism opens the inlet of the rejection slot. The rod body of the second elastic rod can be quickly and actively ejected under the action of the spring. The limiting shaft quickly enters the rejection slot to limit the rod body. The unqualified medicine bottles can only enter the waste bottle channel following the bottle mouth of the visual star wheel. Due to the quick action of the second elastic rod, the rejection speed can be increased to adapt to a higher capping speed.

[0019] (3) The first elastic rod and the second elastic rod can apply lateral pressure to the medicine bottle during its movement, making it move close to the arc-shaped opening, enhancing the stability of the medicine bottle. At the connection of the visual inspection mechanism and the rejection mechanism, the first elastic rod and the second elastic rod work together to avoid the misalignment of the medicine bottle.

[0020] (4) The stopper mechanism is arranged on the upper side of the rejection star wheel. Its structure is simple and the action is accurate, and it can adapt to high-speed rejection actions.

[0021] (5) When the rejection mechanism normally discharges bottles, the swing block can close the outlet of the rejection slot under the pushing of the limiting shaft, enabling the limiting shaft to smoothly transition from one side of the rejection slot outlet to the other side, avoiding jamming. At the same time, it can avoid the noise caused by the spring pushing the ejector rod at the rejection slot outlet, resulting in the limiting shaft hitting the groove wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0023] Figure 2 is a top view structural schematic diagram of the rejection mechanism, with the stopper mechanism omitted in the figure.

[0024] Figure 3 It is a schematic diagram of the state where the waste rejection slot entrance is open and the limit shaft enters the waste rejection slot in the waste rejection state.

[0025] Figure 4 It is a schematic diagram of the state where the limit shaft enters the protrusion in the waste rejection state.

[0026] Figure 5 It is a schematic diagram of the state where the waste rejection slot entrance is closed and the limit shaft enters the annular groove in the normal bottle discharging state.

[0027] Figure 6 It is a schematic diagram of the sectional structure of the first ejector rod.

[0028] Figure 7 It is a schematic diagram of the sectional structure of the second ejector rod.

[0029] Figure 8 It is a schematic diagram of the structure of the stopper mechanism.

[0030] Figure 9 It is Figure 8 The upward view structure diagram of

[0031] Figure 10 It is a schematic diagram of the installation structure of the eccentric wheel and the connecting seat.

[0032] In the figure: bottle inlet mechanism 1, bottle inlet star wheel 1.1, bottle inlet channel 1.2, bottle inlet guardrail 1.3, vision inspection mechanism 2, vision star wheel 2.1, first ejector rod 2.2, first rod body 2.21, first sleeve 2.22, limit member 2.23, vision guardrail 2.3, vision inspection channel 2.4, camera 2.5, waste rejection mechanism 3, waste rejection star wheel 3.1, second ejector rod 3.2, limit shaft 3.21, second rod body 3.22, push block 3.23, bearing 3.24, guide groove 3.25, second sleeve 3.26, waste rejection guardrail 3.3, qualified bottle channel 3.4, waste bottle channel 3.5, stopper mechanism 3.6, stopper 3.61, arc surface 3.611, motor 3.62, motor shaft 6.321, transition block 3.63, sliding seat 3.64, slide bar 3.65, connecting block 3.67, connecting groove 3.671, avoidance groove 3.7, waste rejection bottom plate 3.8, housing 3.68, rotating wheel 3.66, eccentric rod 3.661, annular groove 3.81, waste rejection slot 3.82, waste rejection slot entrance 3.821, waste rejection slot exit 3.822, protrusion 3.823, rotating shaft of waste rejection star wheel 3.9, swing block 3.10, medicine bottle 4, first guiding block 5.1, second guiding block 5.2, inclined surface 5.21, bottle mouth dialing member 6, spring 7. Specific implementation manners

[0033] In order to enable ordinary technicians in the field to more clearly understand the objectives, technical solutions and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments, but the present invention is not limited to the following embodiments.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] like Figure 1 As shown, a medicine bottle rejection device provided by the present invention comprises a bottle feeding mechanism 1, a visual inspection mechanism 2, and a rejection mechanism 3 connected in sequence. Among them, the bottle feeding mechanism 1 comprises a bottle feeding star wheel 1.1, a bottle feeding bottom plate, and a bottle feeding guardrail 1.3. Bottle removal ports 6 arranged at equal intervals are provided at the outer edge of the bottle feeding star wheel 1.1. The bottle feeding star wheel 1.1 is connected to a rotating shaft, and the rotating shaft is connected to a power source, and the bottle feeding star wheel 1.1 is driven to rotate by the power source. The bottle feeding guardrail 1.3 is arranged on the outer side of the bottle feeding star wheel 1.1 and has an arc-shaped opening, and the arc-shaped opening is arranged opposite to the outer edge of the bottle feeding star wheel 1.1 to form a bottle feeding channel 1.2. The medicine bottle 4 arrives at the bottle inlet channel 1.2 and enters the bottle-pushing opening 6 of the bottle inlet star wheel 1.1. It moves along with the rotation of the bottle-pushing opening 6. During the movement, the medicine bottle 4 is supported by the bottle inlet bottom plate and blocked from the outside by the arc-shaped opening of the bottle inlet guardrail 1.3, while guiding the medicine bottle 4 at the same time.

[0037] like Figure 1As shown in the figure, in the visual inspection mechanism 2, the visual star wheel 2.1 is connected to the rotating shaft, and the rotating shaft is connected to the power source. A visual guardrail 2.3 is provided outside the visual star wheel 2.1. The visual guardrail 2.3 has an arc-shaped opening, and the arc-shaped opening is arranged opposite to the outer edge of the visual star wheel 2.1 to form a visual inspection channel 2.4. The front end of the visual inspection channel 2.4 is connected to the rear end of the bottle inlet channel 1.2, and a first guiding block 5.1 for guiding the medicine bottle 4 into the visual inspection channel 2.4 is provided at the connection. The first guiding block 5.1 extends above the bottle inlet star wheel 1.1 to block the medicine bottle 4 in the bottle-pushing opening 6 of the bottle inlet star wheel 1.1 and transfer it into the visual inspection channel 2.4.

[0038] As Figure 1 shown, the visual star wheel 2.1 of the visual inspection mechanism 2 is provided with equally spaced bottle-pushing openings 6 at the outer edge. A first elastic rod 2.2 is radially installed along the inner side of each bottle-pushing opening 6 of the visual star wheel 2.1. As Figure 6 shown, the first elastic rod 2.2 includes a first sleeve 2.22, a spring 7, a first rod body 2.21 and a limiting member 2.23. The first sleeve 2.22 is fixed in the installation hole radially opened on the visual star wheel 2.1. The first rod body 2.21 is slidably installed in the first sleeve 2.22. A spring 7 for pushing the first rod body 2.21 outwards is provided in the first sleeve 2.22. The inner end of the first rod body 2.21 passes through the tail of the first sleeve 2.22 and is fixed with the limiting member 2.23. When there is no medicine bottle 4 entering the bottle-pushing opening 6, the outer end of the first rod body 2.21 is pushed into the corresponding bottle-pushing opening 6 by the spring 7. When the medicine bottle 4 is pressed by the first guiding block 5.1 and the visual guardrail 2.3, the outer end of the first rod body 2.21 is retracted by the medicine bottle 4, and the medicine bottle 4 enters the bottle-pushing opening 6.

[0039] Two cameras 2.5 of the visual inspection mechanism 2 are installed on the side of the visual star wheel 2.1 to take pictures of the image of the medicine bottle 4 in the bottle-pushing opening 6 of the visual star wheel 2.1 and transmit it to the control machine for processing. The two cameras 2.5 are arranged at a certain angle to more comprehensively take pictures of the circumferential image of the medicine bottle 4. An encoder electrically connected to the control machine is provided on the rotating shaft of the visual star wheel 2.1. The encoder is used to determine the rotation angle of the visual star wheel 2.1. Since the bottle-pushing openings 6 of the visual star wheel 2.1 are equally spaced and the angle between the bottle-pushing openings is the same, after the encoder determines the rotation angle of the visual star wheel 2.1, the control machine can obtain the bottle-pushing opening 6 where the defective product is located through processing, providing a basis for subsequent rejection.

[0040] As Figures 1 to 5As shown, in the waste rejection mechanism 3, the rotating shaft 3.9 of the waste rejection star wheel 3.1 is connected to the rotating shaft, and the rotating shaft is connected to the power source. A waste rejection guardrail 3.3 is arranged on the outside of the waste rejection star wheel 3.1, and the waste rejection guardrail 3.3 has an arc-shaped opening, and the arc-shaped opening is arranged opposite to the waste rejection star wheel 3.1 to form a qualified bottle channel 3.4. The waste rejection guardrail 3.3 is also provided with the waste bottle channel 3.5. The front ends of the qualified bottle channel 3.4 and the waste bottle channel 3.5 are both connected to the rear end of the visual inspection channel 2.4, and a second guide block 5.2 is provided at the connection. The second guide block 5.2 is formed with the same arc-shaped opening as the visual guardrail 2.3, and the end of the arc-shaped opening is formed with a slope 5.21, and the slope 5.21 is used to guide the qualified medicine bottle 4 into the qualified bottle channel 3.4.

[0041] Generally, the bottle feeding mechanism 1, visual inspection mechanism 2 and waste rejection mechanism 3 share a power source (generally a motor), which transmits power to the rotating shafts of the bottle feeding star wheel 1.1, the visual star wheel 2.1 and the waste rejection star wheel 3.1 through gears.

[0042] In the reject mechanism 3, the reject star wheel 3.1 of the reject mechanism 3 is provided with bottle-push holes 6 arranged at equal intervals at the outer edge, and a second spring rod 3.2 is radially installed inside each bottle-push hole 6 of the reject star wheel 3.1. Figure 7 As shown, the second spring rod 3.2 includes a second sleeve 3.26, a spring 7, a second rod body 3.22 and a limiting shaft 3.21. The second sleeve 3.26 is fixed in a mounting hole radially opened in the waste rejection star wheel 3.1, and the top and bottom of the mounting hole are provided with a shunting groove 3.7. The second rod body 3.22 is slidably installed in the second sleeve 3.26, and a spring 7 is provided in the second sleeve 3.26 to push the second rod body 3.22 outwards. The limiting shaft 3.21 is fixed on the second rod body 3.22, and the top and bottom of the second sleeve 3.26 are provided with a guide groove 3.25. The upper end of the limiting shaft 3.21 passes through the guide groove 3.25 and the shunting groove 3.7 at the top of the mounting hole, and the lower end passes through the guide groove 3.25 and the shunting groove 3.7 at the bottom of the mounting hole. In order to protect the bottle body, a push block 3.23 is fixed to the outer end of the second rod body 3.22.

[0043] like Figures 3 to 5As shown, the waste rejection bottom plate 3.8 is located below the waste rejection star wheel 3.1. An annular groove 3.81 centered on the waste rejection groove outlet 3.822 is formed on the waste rejection bottom plate 3.8, and a waste rejection groove 3.82 is located outside the annular groove 3.81. The waste rejection groove inlet 3.821 and the waste rejection groove outlet 3.822 are both communicated with the annular groove 3.81. The waste rejection groove 3.82 has a protruding portion 3.823 arranged facing the waste bottle channel 3.5. The lower end of the limit shaft 3.21 of the second elastic rod 3.2 is inserted into the annular groove 3.81. Above the waste rejection groove inlet 3.821, there is a stopper mechanism 3.6 for controlling the limit shaft 3.21 to stay in the annular groove 3.81 or enter the waste rejection groove 3.82. The stopper mechanism 3.6 is controlled by a control machine. In order to reduce friction, rollers or bearings 3.24 are installed at both the upper end and the lower end of the limit shaft 3.21. A swing block 3.10 is provided at the waste rejection groove outlet 3.822. The swing block 3.10 is rotatably connected to the partition block between the waste rejection groove 3.82 and the annular groove 3.81 and can swing back and forth between the outlets of the waste rejection groove 3.82 and the annular groove 3.81.

[0044] As Figure 8 , Figure 9 , Figure 10 shown, the stopper mechanism 3.6 includes a stopper 3.61, a sliding seat 3.64, a sliding rod 3.65, an eccentric wheel, and a motor 3.62. The sliding rod 3.65 is slidably installed in the sliding seat 3.64. One end of the sliding rod 3.65 extends above the waste rejection star wheel 3.1 and is fixed with the stopper 3.61. The stopper 3.61 corresponds to the waste rejection groove inlet 3.821 up and down. The other end of the sliding rod 3.65 is connected to the eccentric wheel through a connecting block 3.67. The eccentric wheel is driven by the motor 3.62. The motor 3.62 is installed on the top of the sliding seat 3.64 through a transition block 3.63 and is covered by a housing 3.68. The motor shaft 6.321 extends downward. The eccentric wheel consists of a rotating wheel 3.66 and an eccentric rod 3.661 eccentrically fixed on the bottom surface of the rotating wheel 3.66. The rotating wheel 3.66 is fixed to the lower end of the motor shaft 6.321. The eccentric rod 3.661 is inserted into a connecting groove 3.671 opened in the connecting hole. An arc surface 3.611 for guiding the limit shaft 3.21 is formed at the front end of the stopper 3.61. When the motor 3.62 rotates, the eccentric rod 3.661 pulls the sliding rod 3.65 and the stopper 3.61 at the end of the sliding rod 3.65 to move through the connecting block 3.67.

[0045] The stopper 3.61 can also move up and down. At this time, the sliding rod 3.65 is slidably installed in the sliding seat 3.64. The connecting block and the eccentric wheel are installed at an adjusted angle. When the motor rotates, the eccentric rod pulls the sliding rod and the stopper at the end of the sliding rod to move up and down through the connecting block.

[0046] The working principle of the present invention is as follows: The bottle inlet star wheel 1.1 toggles the medicine bottles 4 one by one into the bottle mouth 6 of the vision star wheel 2.1. During the rotation of the vision star wheel 2.1, the camera 2.5 takes pictures of the medicine bottles 4 and provides them to the control machine. The control machine determines the defective bottles based on the image results and knows the bottle mouth 6 where the defective bottle is located according to the angle of the encoder; as Figure 3 shown, when the defective medicine bottle 4 is about to arrive, the control machine controls the motor 3.62 of the stopper mechanism 3.6 to start, driving the stopper 3.61 to retract, leaving the lower waste rejection slot inlet 3.821. Under the action of the spring 7, the second rod body 3.22 of the second ejector rod 3.2 quickly ejects outward, and the limit shaft 3.21 follows and ejects together, entering the waste rejection slot inlet 3.821. The bottle mouth 6 on the waste rejection disk is blocked by the second rod body 3.22, and the defective bottle cannot enter and can only follow the continuous movement of the vision star wheel 2.1. After passing the connection between the vision detection mechanism 2 and the waste rejection mechanism 3, the distance between the vision star wheel 2.1 and the waste rejection star wheel 3.1 gradually increases, and there is no vision guardrail 2.3 outside the vision star wheel 2.1 to abut against the medicine bottle 4. The first rod body 2.21 of the first ejector rod 2.2 will quickly eject the medicine bottle 4 outward (at this time, the medicine bottle 4 is positioned between the two ejector rods. Since the second ejector rod moves along the waste rejection slot driven by the limit rod, the force of the second ejector rod will be greater and gradually push the medicine bottle 4 back to the bottle mouth of the vision star wheel), as Figure 4 shown. At this time, the limit shaft 3.21 has reached the protrusion 3.823 along the waste rejection slot 3.82, and the second rod body 3.22 of the second ejector rod 3.2 extends outward to the longest, pushing the defective bottle into the defective bottle channel 3.5 to complete the waste rejection action. Subsequently, the limit shaft 3.21 travels along the waste rejection slot 3.82, pushes open the swing block 3.10 from the waste rejection slot outlet 3.822, and enters the annular slot 3.81 to travel normally. During the travel, the spring is compressed to achieve energy storage. During this waste rejection process, both the first ejector rod and the second ejector rod are forced by the spring, and their action response speed is very fast. Therefore, the waste rejection disk can rotate at a high speed to meet the requirements of high-speed capping and high-speed waste rejection.

[0047] As Figure 5As shown, when a qualified bottle body arrives, the stopper 3.61 of the stopper mechanism 3.6 moves forward and blocks above the inlet 3.821 of the rejection groove. The upper end of the limit shaft 3.21 crosses the inlet 3.821 of the rejection groove along the arc surface 3.611 of the stopper 3.61 and keeps moving within the annular groove 3.81. When passing through the outlet 3.822 of the rejection groove, the swing block 3.10 swings towards the outlet 3.822 of the rejection groove and abuts against the groove wall, enabling the limit shaft 3.21 to cross the outlet 3.822 of the rejection groove along the swing block 3.10 and keep moving within the annular groove 3.81. The swing block 3.10 can prevent the limit shaft 3.21 from hitting the groove wall of the outlet 3.822 of the rejection groove under the action of the spring, thereby reducing noise. Since the limit shaft 3.21 is limited by the annular groove 3.81, the second rod body 3.22 does not enter the bottle mouth 6 of the rejection star wheel 3.1. At the connection between the visual inspection mechanism 2 and the rejection mechanism 3, the first rod body 2.21 of the first elastic rod 2.2 will push the medicine bottle 4 outwards. Under the guidance of the inclined surface 5.21, the qualified bottle body enters the bottle mouth 6 of the rejection star wheel 3.1, and then enters the qualified bottle channel 3.4 under the guidance of the rejection guardrail 3.3, and finally exits the bottle from the rear end of the qualified bottle channel 3.4.

[0048] The above are only the preferred embodiments of the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A waste rejection device for medicine bottles, characterized in that: It includes a bottle feeding mechanism (1), a visual inspection mechanism (2), and a rejection mechanism (3) connected in sequence; the visual star wheel (2.1) of the visual inspection mechanism (2) and the rejection star wheel (3.1) of the rejection mechanism (3) are both provided with bottle mouth poking parts (6) arranged at equal intervals on the outer edge. Inside each bottle mouth poking part (6) of the visual star wheel (2.1), a first elastic rod (2.2) is installed radially along the inner side. Inside each bottle mouth poking part (6) of the rejection star wheel (3.1), a second elastic rod (3.2) is installed radially along the inner side. The first rod body (2.21) of the first elastic rod (2.2) and the second rod body (3.22) of the second elastic rod (3.2) are both pushed into the corresponding bottle mouth poking part (6) under the push of a spring (7); the camera (2.5) of the visual inspection mechanism (2) is installed on the side of the visual star wheel (2.1) and is used to take images of the medicine bottles (4) inside the bottle mouth poking parts (6) of the visual star wheel (2.1) and transmit them to the control machine for processing. An encoder electrically connected to the control machine is provided on the rotating shaft of the visual star wheel (2.1). In the rejection mechanism (3), an annular groove (3.81) centered on the rotating shaft (3.9) of the rejection star wheel is formed on the rejection bottom plate (3.8), and a rejection groove (3.82) is located outside the annular groove (3.81). The rejection groove inlet (3.821) and the rejection groove outlet (3.822) are both communicated with the annular groove (3.81). The rejection groove (3.82) has a protruding part (3.823) arranged facing the waste bottle channel (3.5); the second rod body (3.22) of the second elastic rod (3.2) is connected with a vertical limiting shaft (3.21). The limiting shaft (3.21) passes through an avoidance groove (3.7) formed on the rejection star wheel (3.1) and the lower end is inserted into the annular groove (3.81). Above the rejection groove inlet (3.821), there is a stop block mechanism (3.6) for controlling the limiting shaft (3.21) to stay in the annular groove (3.81) or enter the rejection groove (3.82). The stop block mechanism (3.6) is controlled by the control machine.

2. The waste rejection device for a medicine bottle according to claim 1, characterized in that: The first elastic rod (2.2) includes a first sleeve (2.22), a spring (7), the first rod body (2.21), and a limiting part (2.23); the first sleeve (2.22) is fixed in a mounting hole radially formed on the visual star wheel (2.1). The first rod body (2.21) is slidably installed in the first sleeve (2.22). A spring (7) for pushing the first rod body (2.21) outward is provided in the first sleeve (2.22). The inner end of the first rod body (2.21) passes through the tail of the first sleeve (2.22) and is fixed with the limiting part (2.23).

3. A pharmaceutical bottle rejection device according to claim 1 or 2, characterized in that: The second ejecting rod (3.2) includes a second sleeve (3.26), a spring (7), the second rod body (3.22), and a limit shaft (3.21); the second sleeve (3.26) is fixed in the mounting hole radially formed in the waste removing star wheel (3.1), and avoiding grooves (3.7) are formed at both the top and bottom of the mounting hole; the second rod body (3.22) is slidably mounted in the second sleeve (3.26), a spring (7) for pushing the second rod body (3.22) outwards is arranged in the second sleeve (3.26), the limit shaft (3.21) is fixed on the second rod body (3.22), guiding grooves (3.25) are formed at both the top and bottom of the second sleeve (3.26), the upper end of the limit shaft (3.21) passes through the guiding groove (3.25) and the avoiding groove (3.7) at the top of the mounting hole, and the lower end passes through the guiding groove (3.25) and the avoiding groove (3.7) at the bottom of the mounting hole and is inserted into the annular groove (3.81).

4. The reject device for a medicine bottle according to claim 3, wherein: Rollers or bearings (3.24) are mounted at both the upper and lower ends of the limit shaft (3.21).

5. The waste rejection device for a medicine bottle according to claim 4, characterized in that: A swing block (3.10) is arranged at the waste removing groove outlet (3.822), and the swing block (3.10) is rotatably connected to the partition block between the waste removing groove (3.82) and the annular groove (3.81).

6. The waste rejection device for a medicine bottle according to claim 5, wherein: The stopper mechanism (3.6) includes a stopper (3.61), a sliding seat (3.64), a sliding rod (3.65), an eccentric wheel, and a motor (3.62). The sliding rod (3.65) is slidably mounted in the sliding seat (3.64) in a front-back or up-down sliding manner. One end of the sliding rod (3.65) extends above the waste removing star wheel (3.1) and is fixed with the stopper (3.61). The stopper (3.61) corresponds to the waste removing groove inlet (3.821) vertically. The other end of the sliding rod (3.65) is connected to the eccentric wheel through a connecting block (3.67), and the eccentric wheel is driven by the motor (3.62).

7. The waste rejection device for a medicine bottle according to claim 6, characterized in that: An arc surface (3.611) for guiding the limit shaft (3.21) is formed at the front end of the stopper (3.61).

8. The waste rejection device for a medicine bottle according to claim 7, characterized in that: The bottle feeding mechanism (1) includes a bottle feeding star wheel (1.1), a bottle feeding bottom plate, and a bottle feeding guardrail (1.3). Equal-spacing arranged bottle mouth picking openings (6) are formed at the outer edge of the bottle feeding star wheel (1.1). The bottle feeding guardrail (1.3) is arranged outside the bottle feeding star wheel (1.1) and has an arc-shaped opening. The arc-shaped opening is arranged opposite to the outer edge of the bottle feeding star wheel (1.1) to form a bottle feeding channel (1.2).

9. The waste rejection device for a medicine bottle according to claim 8, characterized in that: In the visual inspection mechanism (2), a visual guardrail (2.3) is arranged outside the visual star wheel (2.1). The visual guardrail (2.3) has an arc-shaped opening. The arc-shaped opening is arranged opposite to the outer edge of the visual star wheel (2.1) to form a visual inspection channel (2.4). The front end of the visual inspection channel (2.4) is connected to the rear end of the bottle feeding channel (1.2), and a first guiding block (5.1) for guiding the medicine bottle (4) into the visual inspection channel (2.4) is arranged at the connection part.

10. A pharmaceutical bottle rejection device according to claim 9, characterized in that: In the rejection mechanism (3), a rejection guardrail (3.3) is provided outside the rejection star wheel (3.1). The rejection guardrail (3.3) has an arc-shaped opening, and the arc-shaped opening is arranged opposite to the rejection star wheel (3.1) to form a qualified bottle passage (3.4). A waste bottle passage (3.5) is also provided on the rejection guardrail (3.3). The front ends of the qualified bottle passage (3.4) and the waste bottle passage (3.5) are both connected to the rear end of the visual inspection passage (2.4). A second guiding block (5.2) for guiding the qualified medicine bottles (4) into the qualified bottle passage (3.4) is provided at the connection.

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