CN219052121U - Detection screening device for plastic bottle blanks - Google Patents

Abstract

The application discloses a detect sieving mechanism for plastic bottle base includes: machine, feeding mechanism includes: the feeding driving device and the feeding thumb wheel are provided with a plurality of arc-shaped grooves on the circumferential surface of the outer side of the feeding thumb wheel; the feeding mechanism is fixedly connected to the upper surface of the machine table and comprises: the feeding device comprises a feeding support frame, wherein the upper end of the feeding support frame is connected with an arc-shaped material guide plate, the upper surface of the machine table is provided with a feeding driving device, and the output end of the feeding driving device is fixedly connected with a feeding thumb wheel; the periphery at pay-off drive arrangement is connected with bullet base device, and bullet base device includes: the flexible base plate is movably connected with one end of the connecting plate through a rotating shaft, the telescopic cylinder is fixedly connected with the outer side of the connecting plate, and a telescopic rod of the telescopic cylinder is movably connected with one end of the flexible base plate. The utility model can prevent clamping flaws on the surface of the bottle blank when the quality of the bottle blank is detected, and unqualified bottle blanks can be conveniently and rapidly discharged.

Description

Detection screening device for plastic bottle blanks

Technical Field

The utility model relates to the technical field of screening equipment, in particular to a detection screening device for plastic bottle blanks.

Background

The plastic bottle is widely applied to industries such as food, beverage, medicine, daily chemical products and the like, and with the continuous increase of the demand of the plastic bottle, the plastic bottle is manufactured in an automatic assembly line mode so as to meet the production capacity of the plastic bottle.

After the existing bottle blank is produced, part of the bottle blank is not in accordance with the quality requirement, for example, the bottle blank has the problems of stain, substandard bottle blank shape, defect of bottle mouth thread of the bottle blank and the like, and the bottle blank is an unqualified product, and the bottle blank is required to be separated from the qualified product;

the existing bottle blank detection equipment mainly aims at detecting blank openings, blank bottoms, blank opening threads and bottle bodies when detecting bottle blanks, the bottle blanks need to be fixedly clamped through clamping claws when detecting the bottle blanks, due to the mechanical structure limitations of the clamping claws, special lenses are needed when detecting the blank opening threads, the existing clamping claws are complicated, the bottle blanks are fixed through hard clamping when clamping the bottle blanks, clamping flaws are easily formed on the surfaces of the bottle blanks, the bottle blanks are damaged, the bottle blanks cannot be conveniently and quickly removed when unqualified bottle blanks are detected, and bottle blank mixing is easily caused.

Disclosure of Invention

The utility model aims to provide a detection screening device for plastic bottle blanks, which is used for solving the problems that in the prior art, hard clamping of clamping claws easily causes clamping flaws on the surfaces of bottle blanks during quality detection of the bottle blanks and unqualified bottle blanks cannot be discharged rapidly.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical scheme: a detect sieving mechanism for plastic bottle base, includes board, its characterized in that: the upper surface at the board is provided with feeding mechanism, and feeding mechanism includes: the feeding driving device is fixedly connected with the upper surface of the machine table, the output end of the feeding driving device is fixedly connected with a feeding deflector wheel, a plurality of arc-shaped grooves are formed in the outer circumferential surface of the feeding deflector wheel, a clamping device is connected to the arc-shaped grooves, a cam disc is fixedly connected to the top surface of a mounting seat of the feeding driving device below the feeding deflector wheel, a inwards concave guide track is arranged on the surface of the cam disc, and the outer contour of the guide track is identical with the outer contour of the cam disc; one side that is located feeding mechanism is at the last surface fixedly connected with feed mechanism of board, and feed mechanism includes: the feeding device comprises a feeding support frame, wherein the feeding support frame is fixedly connected to the upper surface of a machine table, two symmetrical feeding baffles which are obliquely arranged are connected to the upper end of the feeding support frame, a space is reserved between the two feeding baffles and the feeding support frame to form a feeding channel, an arc-shaped material guide plate is connected to one side of the feeding baffle at the upper end of the feeding support frame, a feeding driving device connected to the upper surface of the machine table is arranged at the same circle center as the arc-shaped material guide plate, a feeding thumb wheel is fixedly connected to the output end of the feeding driving device, and a superposition track exists between the clamping end of the clamping device and the feeding thumb wheel and between the clamping end of the clamping device and the material guide plate during movement; keep away from feed mechanism and lie in feeding mechanism's one side is provided with formation of image detection device at the upper surface of board, is provided with the waste material funnel of being connected with board upper surface fixed in one side of formation of image detection device, lies in waste material funnel's top and is connected with bullet base device at feeding drive arrangement's periphery, and bullet base device includes: the connecting plate is fixedly connected with the periphery of the feeding driving device through bolts, an elastic blank plate is movably connected to one end of the connecting plate through a rotating shaft, a telescopic cylinder is fixedly connected to the outer side of the connecting plate, a telescopic rod of the telescopic cylinder is movably connected with one end of the elastic blank plate, and a discharging mechanism is arranged on one side of the feeding mechanism in the opposite direction to the feeding mechanism.

Further, in an embodiment of the present utility model, the discharging mechanism includes: the device comprises a machine table, a discharge driving device, a discharge stirring wheel, two discharge baffles, a clamping device, a discharge supporting column, a clamping device and a discharge device.

Further, in an embodiment of the present utility model, the clamping device includes: torsion spring seat, arc recess fixed connection of torsion spring seat and pay-off thumb wheel is rotated through the pivot in the below of torsion spring seat and is connected with torsion piece, is provided with track bearing in one side of torsion piece, and bolt fixedly connected with clamping jaw seat is passed through in the one end of torsion piece, is provided with two symmetrical clamping jaws in the one end activity of clamping jaw seat, and the clamping jaw forms when laminating and has open-ended circular, is connected with the couple spring through the couple post in the upper surface of two clamping jaws.

Further, in the embodiment of the utility model, the blank ejection plate rotates around the axis of the rotating shaft movably connected with the connecting plate when driven to rotate by the telescopic cylinder, and the outer side surface of the blank ejection plate contacts with the bottle blank on the clamping device when rotating.

Further, in the embodiment of the utility model, arc-shaped grooves are formed on the surfaces of the feeding thumb wheel and the discharging thumb wheel, the surface of the feeding thumb wheel is not higher than the surface of the material guiding plate, and the surface of the discharging thumb wheel is not higher than the surface of the discharging baffle.

Further, in the embodiment of the present utility model, a material blocking device is fixedly connected to the feeding support frame at the junction of the feeding baffle and the material guiding plate, and the material blocking device includes: the telescopic baffle rod and the telescopic motor are arranged on the surface of the feeding support frame at one side of the feeding baffle plate, and the telescopic baffle rod is movably arranged in the telescopic motor.

The beneficial effects of the utility model are as follows: according to the utility model, the bottle blanks in the feeding baffle plate can be intercepted by the material blocking device, so that the bottle blanks are prevented from being blocked due to a large number of disposable feeding thumb wheels, and the feeding of the bottle blanks can be intercepted during equipment maintenance, so that the bottle blanks are prevented from continuously entering and influencing the equipment maintenance. The bottle blank is clamped by the clamping device, the bottle blank is automatically clamped by the two symmetrical clamping jaws and the hook spring, and the clamping force of the clamping jaws is controlled by the hook spring in the clamping process to prevent hard clamping flaws from being caused on the surface of the bottle blank. Through imaging detection device, bullet base device, the centre gripping is that the time of taking the defective bottle base to the defective bottle base pops out in the clamping jaw for the defective bottle base breaks away from the clamping jaw and prevents to mix with the bottle base that does not have the defect, thereby realizes the automatic classification of bottle base.

Drawings

The present application is further described below with reference to the drawings and examples.

Fig. 1 is a front view of a screening apparatus for inspecting plastic preforms according to an embodiment of the present utility model.

Fig. 2 is a top view of a screening apparatus for inspecting plastic preforms according to an embodiment of the utility model.

Fig. 3 is a perspective view of a screening apparatus for inspecting plastic preforms according to an embodiment of the present utility model.

Fig. 4 is a schematic view of the green body ejection device of fig. 2.

Fig. 5 is a partially enlarged schematic view of the structure at a in fig. 3.

Fig. 6 is a schematic structural view of the feeding mechanism in fig. 2 when the feeding mechanism is cooperatively connected with the clamping device.

Fig. 7 is a schematic view of the structure of the clamping device in fig. 6.

Fig. 8 is a schematic view of the cam disk of fig. 6.

1. Machine 2, feeding mechanism 21 and feeding support frame

22. Feeding driving device 23, feeding thumb wheel 24 and feeding baffle plate

25. Stop 26 and guide plate

3. Clamping device 31, torsion block 32, clamping jaw

33. Torsion spring seat 34, clamping jaw seat 35 and track bearing

4. Imaging detection device 5, waste hopper

6. Blank ejection device 61, connecting plate 62 and blank ejection plate

63. Telescopic cylinder 64, telescopic rod

7. Discharge mechanism 71, discharge driving device 72 and discharge thumb wheel

73. Discharging baffle

8. Feeding mechanism 81, feeding driving device 82 and feeding thumb wheel

83. Cam disc 831, guide track

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

As shown in fig. 1, 2 and 3, this embodiment discloses a detection screening device for plastic bottle blanks, including a machine 1, a feeding mechanism 8 is disposed on an upper surface of the machine 1, and the feeding mechanism 8 includes: the feeding driving device 81, the feeding driving device 81 is fixedly connected with the upper surface of the machine 1, the output end of the feeding driving device 81 is fixedly connected with a feeding deflector wheel 82, a plurality of arc-shaped grooves are formed in the outer circumferential surface of the feeding deflector wheel 82, a clamping device 3 is connected to the arc-shaped grooves, a cam disc 83 is fixedly connected to the top surface of a mounting seat of the feeding driving device 81 below the feeding deflector wheel 82, an inwards concave guide track 831 is arranged on the surface of the cam disc 83, the outer contour of the guide track 831 is identical to the outer contour of the cam disc 83, three arc-shaped edges are arranged on the periphery of the cam disc 83 in the embodiment and are divided into a first station, a second station and a third station, the direction of the first station faces the feeding mechanism 2, the direction of the second station faces the imaging detection device 4, and the direction of the third station faces the discharging mechanism 7;

specifically, in this embodiment, as shown in fig. 3, 5 and 7, the number of the gripping devices 3 is several, the number of the gripping devices 3 is the same as the number of the arc-shaped grooves on the feeding thumb wheel 82, and the gripping devices 3 include: the torsion spring seat 33 is fixedly connected with an arc-shaped groove of the feeding thumb wheel 82 through a fixed disc, a torsion block 31 is rotationally connected below the torsion spring seat 33 through a rotating shaft, a track bearing 35 is arranged on one side of the torsion block 31, a clamping jaw seat 34 is fixedly connected with one end of the torsion block 31 through a bolt, two symmetrical clamping jaws 32 are movably arranged at one end of the clamping jaw seat 34, the clamping jaws 32 form a circular shape with an opening when being attached, and a hook spring is connected with the upper surfaces of the two clamping jaws 32 through a hook column;

as shown in fig. 6, when the clamping device 3 is installed, the track bearing 35 stretches into the guide track 831, the track bearing 35 of the clamping device 3 moves along the guide track 831 in the rotating process of the feeding deflector 82, the track bearing 35 drives the clamping jaw seat 34, the torsion block 31 and the clamping jaw 32 to rotate (as shown in fig. 2) through the track bearing 35 when moving along the guide track 831 due to the outline profile of the cam plate 83 (as shown in fig. 8), when the clamping device 3 rotates to the position of the feeding mechanism 2, the clamping device 3 which is originally in an inclined state changes to be in a horizontal state (thereby changing the distance between the clamping device 3 and the feeding mechanism 2), so that the clamping jaw 32 clamps a bottle blank on the feeding deflector 23 in the rotating process, thereby realizing the clamping action of the clamping jaw 32 on the bottle blank, realizing the automatic clamping of the bottle blank through two symmetrical clamping jaw 32 and the hook spring on the clamping device 3, and preventing hard clamping flaw on the surface of the bottle blank due to the clamping force control of the hook spring during the clamping.

As shown in fig. 2 and 3, a feeding mechanism 2 is fixedly connected to an upper surface of the machine 1 at one side of the feeding mechanism 8, and the feeding mechanism 2 includes: the feeding support frame 21, feeding support frame 21 fixed connection is in the upper surface of board 1, be connected with the feeding baffle 24 that two symmetries slope set up in the upper end of feeding support frame 21, all leave the interval between two feeding baffles 24 and the feeding support frame 21 and form the material loading passageway, be used for putting into of bottle base and the transportation of bottle base, bottle base carries out the landing along the incline direction voluntarily after the bottle base is put into the material loading passageway of slope, realize the automatic feeding of bottle base, be located one side of feeding baffle 24 and be connected with curved stock guide 26 in the upper end of feeding support frame 21, be the same centre of a circle with curved stock guide 26 and be provided with the feeding drive 22 who is connected at board 1 upper surface, be located the output fixedly connected with feeding thumb wheel 23 of feeding drive 22, be located the junction of feeding baffle 24 and stock guide 26 and feeding support frame 21 fixedly connected with stop device 25, stop device 25 includes: the telescopic material blocking rod and the telescopic motor are fixedly arranged on the surface of the feeding support frame 21 at one side of the feeding baffle 24, the telescopic material blocking rod is movably arranged in the telescopic motor, bottle blanks in the feeding baffle 24 can be intercepted through the telescopic material blocking rod of the material blocking device 25, a large number of bottle blanks can be prevented from entering the feeding deflector wheel 23 at one time to cause blockage, feeding of the bottle blanks can be intercepted during equipment maintenance, continuous entering of the bottle blanks is prevented, equipment maintenance is influenced, and the overlapping track exists between the clamping ends of the clamping device 3 and the feeding deflector wheel 23 and the material guiding plate 26 during movement;

the upper surface of the machine 1, which is located at one side of the feeding mechanism 8 and far away from the feeding mechanism 2, is provided with an imaging detection device 4, one side of the imaging detection device 4 is provided with a waste hopper 5 fixedly connected with the upper surface of the machine 1, the periphery of a feeding driving device 81 above the waste hopper 5 is connected with a blank ejection device 6, and the defective bottle blanks are ejected when being clamped in clamping jaws 32 through the imaging detection device 4 and the blank ejection device 6, so that the defective bottle blanks are separated from clamping jaws 32 to be prevented from being mixed with the bottle blanks without defects, and the automatic classification of the bottle blanks is realized.

As shown in fig. 4, the green bullet device 6 includes: the connecting plate 61, the connecting plate 61 passes through the periphery fixed connection of bolt and pay-off drive arrangement 81, there is bullet blank 62 in the one end of connecting plate 61 through rotation axis swing joint, fixedly connected with telescopic cylinder 63 in the outside of connecting plate 61, telescopic link 64 and the one end swing joint of bullet blank 62 of telescopic cylinder 63, concretely, in this embodiment, as shown in fig. 4, bullet blank 62 rotates around the axle center of rotation axis with connecting plate 61 swing joint when driving through telescopic cylinder 63 and rotates, bullet blank 62's outside surface is contacted with bottle blank on the clamping device 3 when rotatory, be located one side of feeding mechanism 8 and feeding mechanism 2 and be provided with discharge mechanism 7 in opposite direction, concretely, in this embodiment, as shown in fig. 2, 3, discharge mechanism 7 includes: the discharging driving device 71, the discharging driving device 71 is fixedly arranged on the upper surface of the machine 1, the discharging driving device 71 is fixedly connected with a discharging deflector 72 at the output end, two discharging baffles 73 are arranged on one side of the discharging deflector 72, a space is reserved between the two discharging baffles 73 to form a discharging channel, when a qualified bottle blank moves to the discharging baffles 73, the bottle blank on the clamping jaw 32 is separated through the discharging deflector 72 and the discharging channel, automatic discharging of the bottle blank is achieved, the discharging baffles 73 are connected with a discharging support column arranged on the upper surface of the machine 1, and the clamping end of the clamping device 3 is in a coincident track with the discharging deflector 72 and the discharging baffles 73 during discharging.

In this embodiment, as shown in fig. 3, arc-shaped grooves are provided on the surfaces of the feeding thumb wheel 23 and the discharging thumb wheel 72, and the surface of the feeding thumb wheel 23 is not higher than the surface of the guide plate 26 and the surface of the discharging thumb wheel 72 is not higher than the surface of the discharging baffle 73.

In the present embodiment, the feeding driving device 81, the feeding driving device 22, and the discharging driving device 71 are provided in the same configuration, including: the mounting plate is fixedly arranged on the upper surface of the machine table 1, a rotating motor is arranged in the mounting plate, and the feeding thumb wheel 82, the feeding thumb wheel 23 and the discharging thumb wheel 72 are respectively controlled to rotate through the rotating motors.

The working principle of the utility model is as follows: the bottle mouth of the bottle blank is upwards placed on a feeding baffle 24 of a feeding mechanism 2, the bottle blank moves along the inclined direction of the feeding baffle 24, when the bottle blank moves to an arc-shaped groove of a feeding deflector 23, the feeding deflector 23 drives the bottle blank to move along a material guide plate 26, a material blocking device 25 is arranged at the intersection of the feeding baffle 24 and the material guide plate 26, the bottle blank can be blocked through a telescopic material blocking rod, and the quantity of the bottle blank entering the material guide plate 26 is controlled;

when the bottle blank moves to the junction of the material guide plate 26 and the clamping device 3, the track bearing 35 of the clamping device 3 moves along the guide track 831, and the track bearing 35 drives the clamping jaw seat 34, the torsion block 31 and the clamping jaw 32 to rotate in the moving process, so that the clamping jaw 32 clamps the bottle blank on the feeding thumb wheel 23 in the rotating process;

when the clamping jaw 32 clamps the bottle blank, the feeding driving device 81 starts to drive the feeding thumb wheel 82 to rotate towards the imaging detection device 4, when the feeding thumb wheel 82 rotates to pass through the imaging detection device 4, the imaging detection device 4 shoots the bottle blank in multiple directions, the photos are sent to a control device (not shown in the figure), and then the control device compares the photos to judge whether the bottle blank has defects or not, so that the accuracy of detection results is ensured;

when the bottle body is defective, the feeding thumb wheel 82 continues to rotate, and when the bottle body rotates to the upper part of the waste hopper 5, the telescopic cylinder 63 is started to drive the telescopic rod 64 to extend, the telescopic rod 64 drives the blank-ejecting plate 62 to rotate around the axis of a rotating shaft connected with the telescopic rod 64, and the blank-ejecting plate 62 pushes out bottle blanks in the clamping jaw 32 in the rotating process, so that the bottle blanks with defects are separated from the clamping jaw 32 and fall into the waste hopper 5 to be discharged;

when the bottle body is free from defects, the feeding deflector 82 continues to rotate, the blank ejection device 6 is not started through the upper part of the waste hopper 5, the feeding deflector 82 rotates to the position of the discharging mechanism 7, on the rotating track of the feeding deflector 82, when the clamping jaw 32 brings the bottle blank into the position of the discharging baffle 73, the bottle body part of the bottle blank enters the discharging baffle 73, the clamping jaw 32 continues to rotate so that the bottle blank is separated from the clamping jaw 32, when the bottle blank is separated from the clamping jaw 32 and enters the discharging baffle 73, the discharging driving device 71 starts to drive the discharging deflector 72 to rotate, and the bottle blank is rotationally brought to move along the path of the discharging baffle 73 through the discharging deflector 72 to discharge, so that the classified discharging of the bottle blank is realized.

While the foregoing has been described in terms of illustrative embodiments thereof, so that those skilled in the art may appreciate the present application, it is not intended to be limited to the precise embodiments so that others skilled in the art may readily utilize the present application to its various modifications and variations which are within the spirit and scope of the present application as defined and determined by the appended claims.

Claims (6)

1. A detect sieving mechanism for plastic bottle base, includes board, its characterized in that: the upper surface at the board is provided with feeding mechanism, and feeding mechanism includes: the feeding driving device is fixedly connected with the upper surface of the machine table, the output end of the feeding driving device is fixedly connected with a feeding deflector wheel, a plurality of arc-shaped grooves are formed in the outer circumferential surface of the feeding deflector wheel, a clamping device is connected to the arc-shaped grooves, a cam disc is fixedly connected to the top surface of a mounting seat of the feeding driving device below the feeding deflector wheel, a inwards concave guide track is arranged on the surface of the cam disc, and the outer contour of the guide track is identical with the outer contour of the cam disc;

one side that is located feeding mechanism is at the last surface fixedly connected with feed mechanism of board, and feed mechanism includes: the feeding device comprises a feeding support frame, wherein the feeding support frame is fixedly connected to the upper surface of a machine table, two symmetrical feeding baffles which are obliquely arranged are connected to the upper end of the feeding support frame, a space is reserved between the two feeding baffles and the feeding support frame to form a feeding channel, an arc-shaped material guide plate is connected to one side of the feeding baffle at the upper end of the feeding support frame, a feeding driving device connected to the upper surface of the machine table is arranged at the same circle center as the arc-shaped material guide plate, a feeding thumb wheel is fixedly connected to the output end of the feeding driving device, and a superposition track exists between the clamping end of the clamping device and the feeding thumb wheel and between the clamping end of the clamping device and the material guide plate during movement;

keep away from feed mechanism and lie in feeding mechanism's one side is provided with formation of image detection device at the upper surface of board, is provided with the waste material funnel of being connected with board upper surface fixed in one side of formation of image detection device, lies in waste material funnel's top and is connected with bullet base device at feeding drive arrangement's periphery, and bullet base device includes: the connecting plate is fixedly connected with the periphery of the feeding driving device through bolts, an elastic blank plate is movably connected to one end of the connecting plate through a rotating shaft, a telescopic cylinder is fixedly connected to the outer side of the connecting plate, a telescopic rod of the telescopic cylinder is movably connected with one end of the elastic blank plate, and a discharging mechanism is arranged on one side of the feeding mechanism in the opposite direction to the feeding mechanism.

2. The apparatus for detecting and screening plastic bottle blanks according to claim 1, wherein the discharging mechanism comprises: the device comprises a machine table, a discharge driving device, a discharge stirring wheel, two discharge baffles, a clamping device, a discharge supporting column, a clamping device and a discharge device.

3. The inspection and screening apparatus for plastic bottle preforms according to claim 1, wherein said holding means comprises: torsion spring seat, arc recess fixed connection of torsion spring seat and pay-off thumb wheel is rotated through the pivot in the below of torsion spring seat and is connected with torsion piece, is provided with track bearing in one side of torsion piece, and bolt fixedly connected with clamping jaw seat is passed through in the one end of torsion piece, is provided with two symmetrical clamping jaws in the one end activity of clamping jaw seat, and the clamping jaw forms when laminating and has open-ended circular, is connected with the couple spring through the couple post in the upper surface of two clamping jaws.

4. The detecting and screening device for plastic bottle blanks according to claim 1, wherein the blank-ejecting plate rotates around the axis of the rotating shaft movably connected with the connecting plate when rotated by the telescopic cylinder, and the outer side surface of the blank-ejecting plate contacts with the bottle blanks on the holding device when rotated.

5. The detecting and screening device for plastic bottle blanks according to claim 1, wherein arc-shaped grooves are formed in the surfaces of the feeding thumb wheel and the discharging thumb wheel, the surface of the feeding thumb wheel is not higher than the surface of the material guiding plate, and the surface of the discharging thumb wheel is not higher than the surface of the discharging baffle.

6. The device for detecting and screening plastic bottle blanks according to claim 1, wherein a stop device is fixedly connected with the feeding support frame at the junction of the feeding baffle plate and the material guiding plate, and the stop device comprises: the telescopic baffle rod and the telescopic motor are arranged on the surface of the feeding support frame at one side of the feeding baffle plate, and the telescopic baffle rod is movably arranged in the telescopic motor.

Images