Plastic bottle detection device and method

Abstract

The invention belongs to the technical field of plastic bottle detection, and provides a plastic bottle detection device and method.The plastic bottle detection device comprises a detection table, a plurality of first visual detectors can be arranged on the detection table through a support, and a plurality of supporting mechanisms are distributed on the upper end face of the detection table at equal intervals; the two sides of the supporting mechanism are each provided with a limiting mechanism, the limiting mechanisms can vertically limit one ends of all bottle bodies at the same time, and the limiting mechanisms can sense the pressure generated when the bottle bodies tilt upwards. According to the device, when the deformation degrees of the bottle bodies are different, the second limiting belts can still be attached to the bottle bodies and keep the same downward pressure, meanwhile, the high attaching degree of the second limiting belts and the bottle bodies can be kept, and therefore the pressed parts of the bottle bodies can be evenly stressed.

Description

Technical Field

[0001] The present invention belongs to the technical field of plastic bottle detection, and particularly relates to a plastic bottle detection device and method. Background Art

[0002] Plastic bottles are mainly made of materials such as polyethylene or polypropylene and added with a variety of organic solvents. Plastic bottles widely use polyester, polyethylene, and polypropylene as raw materials. After adding the corresponding organic solvents and being heated at high temperature, they are plastic containers formed by blow molding, extrusion blow molding, or injection molding through plastic molds. Plastic bottles are mainly used as disposable plastic packaging containers for liquids or solids such as beverages, foods, pickles, honey, dried fruits, edible oils, agricultural veterinary drugs, etc. Plastic bottles have the characteristics of being not easily broken, low cost, high transparency, and food-grade raw materials.

[0003] Since plastic bottles are not easily degradable, scientific and technological personnel have continuously studied and improved on existing materials to seek bottle body materials for easily degradable plastic bottles. However, since plastic bottles need to have a certain hardness to resist external pressure deformation during transportation and use, it is necessary to detect new plastic bottle materials.

[0004] When the existing plastic bottle detection device detects plastic bottles, it generally loads the plastic bottles with liquid and then squeezes the plastic bottle body through a pressure device, and then observes the deformation degree of the plastic bottle body to judge the compressive capacity of the plastic bottle body during actual use. However, since general plastic bottle bodies are usually circular and the surface flatness is uneven, not only is the plastic bottle body prone to move after being pressed, but on the other hand, the contact area between different plastic bottle bodies and the pressure device during detection is prone to have a large deviation, resulting in poor accuracy of the detection results of the plastic bottle body. Summary of the Invention

[0005] The purpose of the present invention is to provide a plastic bottle detection device and method, aiming to solve the technical problem that the contact area between different plastic bottle bodies and the pressure device during detection is prone to have a large deviation, resulting in poor accuracy of the detection results of the plastic bottle body in the prior art.

[0006] The present invention is implemented as follows. A plastic bottle detection device includes a detection table. A plurality of first vision detectors for detecting the deformation degree of the bottle body can be arranged on the detection table through brackets. A plurality of support mechanisms are equidistantly distributed on the upper end surface of the detection table. The support mechanisms can support and limit the bottle body. One limiting mechanism is respectively arranged on both sides of the support mechanism. The limiting mechanism can simultaneously vertically limit one end of all bottle bodies, and the limiting mechanism can sense the pressure when the bottle body tilts upward.

[0007] The upper end surface of the testing platform is fixedly connected with a No. 2 support frame, and the No. 2 support frame is connected with a No. 3 electric lifting seat through a driving component, and the driving component can drive the No. 3 electric lifting seat to move horizontally, and the telescopic end of the No. 3 electric lifting seat is fixedly connected with a connecting seat, and an air pressure sensor is arranged in the connecting seat, and the lower end surface of the connecting seat slides vertically and is sealed and connected with a plurality of sliding seats, and the connecting seat is connected with an air pump;

[0008] Each sliding seat is fixedly connected to an outer frame, and a plurality of rotating rods are arranged in a rectangular shape on the outer frame, and the rotating rods are all rotatably connected to the outer frame, and a No. 2 limiting belt is surrounded by the outside of all the rotating rods. A tensioning assembly and a power assembly are provided on the outer frame, and the tensioning assembly is used to tension the No. 2 limiting belt, and the power assembly is driven by a driving shaft driven by a motor, which drives the No. 2 limiting belt to rotate around the rotating rod through the driving shaft, and the power assembly can drive the No. 2 limiting belt to rotate, and a No. 2 visual detector is provided on the middle side wall of the outer frame, and an unfolding mechanism is provided on both sides of the No. 2 visual detector, and the unfolding mechanism can stretch and unfold the No. 2 limiting belt to both sides, and the unfolding mechanism can also detect the degree of depression when the No. 2 limiting belt contacts the bottle body.

[0009] Further technical solution: the unfolding mechanism includes a fixed frame, a No. 2 electric lifting seat, a rotating roller, a No. 3 motor and a guide strip;

[0010] The fixing frame is embedded in the inner wall of the outer frame, and a No. 2 pressure sensor is arranged between the upper end surface of one end of the fixing frame and the outer frame, the fixing frame is fixedly connected with a No. 2 electric lifting seat, the telescopic end of the No. 2 electric lifting seat is fixedly connected with a No. 3 motor, the output shaft of the No. 3 motor is fixedly connected with a roller, and two sections of guide strips are spirally arranged on the side wall of the roller, and the spiral directions of the two sections of guide strips are opposite.

[0011] Further technical solution: The tensioning assembly includes a No. 1 electric lifting seat and a tensioning roller. The No. 1 electric lifting seat is fixedly connected to the inner top surface of the outer frame. The telescopic end of the No. 1 electric lifting seat is rotatably connected to the tensioning roller, and the tensioning roller is elastically abutted against the No. 2 limiting belt.

[0012] Further technical solution: the driving assembly includes a threaded shaft, a second motor and a slider;

[0013] The No. 2 motor is fixedly connected to the No. 2 support frame, the output shaft of the No. 2 motor is fixedly connected to a threaded shaft, the threaded shaft is threadedly connected to a slider, the slider is horizontally slidably connected to the No. 2 support frame, and the slider is fixedly connected to the fixed end of the No. 3 electric lifting seat.

[0014] Further technical solution: the limiting mechanism includes a No. 1 support frame, an electric telescopic rod, a limiting frame and a limiting groove;

[0015] The first support frame is fixedly connected to the upper end surface of the detection table. The first support frame is fixedly connected with an electric telescopic rod. The telescopic end of the electric telescopic rod is fixedly connected with a limiting frame. A number of limiting grooves are provided on the limiting frame, and each limiting groove faces a support mechanism. A first pressure sensor is provided in each limiting groove.

[0016] Further technical solution: The support mechanism includes a support seat, a fixed shaft, a first motor, a first motor, and a first limiting belt;

[0017] The support seats are all fixedly connected to the upper end surface of the detection table. One end of the support seat is fixedly connected with a fixed shaft, the other end of the support seat is fixedly connected with a first motor, the output shaft of the first motor is fixedly connected with a rotating shaft, one end of the first limiting belt is fixedly connected with the fixed shaft, and the other end of the first limiting belt is wound around the rotating shaft;

[0018] An induction component is provided on the support seat, and the induction component can sense the depression degree when the first limiting belt contacts the bottle body.

[0019] Further technical solution: The induction component includes a lifting rod and a pressure induction plate. The fixed end of the lifting rod is fixedly connected with the support seat, the telescopic end of the lifting rod is fixedly connected with the pressure induction plate. The pressure induction plate is arranged in the middle of the support seat and is arranged below the first limiting belt.

[0020] A method for detecting plastic bottles includes the following steps:

[0021] S1: Place the bottle bodies of each plastic bottle on each support mechanism in sequence, and start the two limiting mechanisms on the detection table. The two limiting mechanisms respectively perform vertical limiting on both ends of all bottle bodies;

[0022] S2: Start the driving component to drive all the outer frames to move horizontally until the second limiting belts in all the outer frames move to the pressure test positions of the predetermined bottle bodies. At this time, start the third electric lifting seat to extend. The third electric lifting seat drives all the second limiting belts to press down on each bottle body, so as to test the deformation conditions of each bottle body under the same pressure;

[0023] S3: When each second limiting belt presses down on each bottle body, when the limiting mechanism detects that the pressure value between some bottle bodies and the limiting mechanism exceeds a certain degree, the unfolding mechanism in the upper outer frame of this bottle body can stretch and unfold the second limiting belt to both sides;

[0024] S4: After the second limit belt presses the bottle body down to a certain extent, the second vision detector is started at this time. By detecting the size of the projected area of the shadow area at the fitting position of the second limit belt and the bottle body through the second vision detector, the pressing area of the second limit belt on the bottle body can be calculated. Combining the pressing force of each second limit belt on the bottle body, the deformation degree range of the bottle body under the force per unit area can be calculated.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0026] 1. The third electric lifting seat drives all the second limit belts to press down on each bottle body, so as to test the deformation conditions of each bottle body under the same pressure; at this time, the air pump can change the air pressure in the connecting seat, so as to change the pressing force of each second limit belt on each bottle body. Further, when the deformation degrees of each bottle body are different, at this time, each second limit belt can still fit the bottle body and maintain the same pressing force. At the same time, the second limit belt can maintain a high degree of fit with the bottle body, so that the stressed part of the bottle body can be evenly stressed;

[0027] 2. When the limit mechanism detects that the pressure value between some bottle bodies and the limit mechanism exceeds a certain extent, the unfolding mechanism in the upper outer frame of this bottle body can stretch and unfold the second limit belt to both sides, so as to prevent the second limit belt from stacking towards the middle of the bottle body along with the depression of the bottle body, thereby affecting the stress area of the bottle body;

[0028] 3. When the tensile deformation of the second limit belt is too large during the extrusion process with the bottle body, at this time, the second limit belt is sunken upwards. The unfolding mechanism can also detect the depression degree when the second limit belt contacts the bottle body, and tension the second limit belt through the tensioning component, so that each second limit belt maintains a stable and consistent pressing force when pressing down on the bottle body, avoiding the influence of too low tension of individual second limit belts on the stress stability of the bottle body; Tensioning the second limit belt through the tensioning component can also prevent the second limit belt from being sunken upwards, resulting in a large difference between the actual contact area of the second limit belt and the bottle body and the projected area of the shadow area, thereby affecting the calculation of the pressing area of the second limit belt on the bottle body;

[0029] 4. Start the power component to drive the second limit belt to rotate around the rotating rod. Under the horizontal limiting action of the limit mechanism on the bottle body, the second limit belt can drive the bottle body to rotate, so as to simultaneously perform pressure tests on other parts of all bottle bodies. During this process, since the second limit belt can maintain a high degree of fit with the bottle body, it can prevent the bottle body from slipping during the rotation process and improve the consistency of the detection parts of each bottle body;

[0030] 5. After the second limit belt presses the lower part of the bottle to a certain extent, the second vision detector is activated at this time. By detecting the size of the projected area of the shadow area at the fitting position between the second limit belt and the bottle body through the second vision detector, the pressing area of the second limit belt on the bottle body can be calculated. Combining the downward pressure of each second limit belt on the bottle body, the deformation degree range of the bottle body under the force per unit area can be calculated. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0032] Figure 2 It is a schematic diagram of the structure of the support mechanism in the present invention.

[0033] Figure 3 It is a schematic diagram of the structure of the limit mechanism in the present invention.

[0034] Figure 4 It is a schematic diagram of the structure of the drive assembly in the present invention.

[0035] Figure 5 It is a schematic diagram of the external structure of the outer frame in the present invention.

[0036] Figure 6 It is a schematic diagram of the internal structure of the outer frame in the present invention.

[0037] Figure 7 It is a schematic diagram of the structure of the unfolding mechanism in the present invention.

[0038] In the drawings: 1, inspection table; 2, support mechanism; 21, support seat; 22, fixed shaft; 23, first motor; 24, rotating shaft; 25, first limit belt; 26, induction assembly; 261, lifting rod; 262, pressure induction plate; 3, limit mechanism; 31, first support frame; 32, electric telescopic rod; 33, limit frame; 34, limit groove; 4, drive assembly; 41, threaded shaft; 42, second motor; 43, slider; 5, tensioning assembly; 51, first electric lifting seat; 52, tensioning roller; 6, unfolding mechanism; 61, fixed frame; 62, second electric lifting seat; 63, rotating roller; 64, third motor; 65, guide bar; 7, second vision detector; 8, power assembly; 9, second limit belt; 10, second support frame; 11, third electric lifting seat; 12, connecting seat; 13, sliding seat; 14, air pump; 15, outer frame; 16, rotating rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0039] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] The following is a detailed description of the specific implementation of the present invention in combination with specific embodiments.

[0041] As Figures 1-7 shown, a plastic bottle detection device provided by the present invention includes a detection table 1. A plurality of first vision detectors for detecting the deformation degree of the bottle body can be arranged on the detection table 1 through brackets. A plurality of support mechanisms 2 are equidistantly distributed on the upper end surface of the detection table 1. The support mechanisms 2 can support and limit the bottle body. One limiting mechanism 3 is arranged on each side of the support mechanism 2. The limiting mechanism 3 can vertically limit one end of all bottle bodies at the same time, and the limiting mechanism 3 can sense the pressure when the bottle body tilts upward.

[0042] A second support frame 10 is fixedly connected to the upper end surface of the detection table 1. The second support frame 10 is connected to a third electric lifting seat 11 through a driving component 4. The driving component 4 can drive the third electric lifting seat 11 to move horizontally. The telescopic end of the third electric lifting seat 11 is fixedly connected to a connecting seat 12. A pneumatic sensor is arranged in the connecting seat 12. A plurality of sliding seats 13 are vertically slid and sealedly connected to the lower end surface of the connecting seat 12. The connecting seat 12 is communicated with an air pump 14.

[0043] Each sliding seat 13 is fixedly connected to an outer frame 15. A plurality of rotating rods 16 are arranged in a rectangular manner on the outer frame 15. The rotating rods 16 are all rotatably connected to the outer frame 15. A second limiting belt 9 is wound around all the rotating rods 16. A tensioning component 5 and a power component 8 are arranged on the outer frame 15. The tensioning component 5 is used to tension the second limiting belt 9. The power component 8 is a driving shaft driven by a motor. The driving shaft drives the second limiting belt 9 to rotate around the rotating rods 16. The power component 8 can drive the second limiting belt 9 to rotate. A second vision detector 7 is arranged on the middle side wall of the outer frame 15. Expansion mechanisms 6 are arranged on both sides of the second vision detector 7. The expansion mechanisms 6 can stretch and expand the second limiting belt 9 to both sides, and the expansion mechanisms 6 can also detect the depression degree when the second limiting belt 9 contacts the bottle body.

[0044] A plastic bottle detection method includes the following steps:

[0045] S1: Place the bottle bodies of each plastic bottle on each support mechanism 2 in sequence, and start the two limiting mechanisms 3 on the detection table 1. The two limiting mechanisms 3 respectively vertically limit both ends of all bottle bodies.

[0046] S2: Start the driving assembly 4 to drive all the outer frames 15 to move horizontally until the No. 2 limiting belts 9 in all the outer frames 15 move to the predetermined pressure test position of the bottle body, then start the No. 3 electric lifting seat 11 to extend, and the No. 3 electric lifting seat 11 drives all the No. 2 limiting belts 9 to press down on each bottle body, so as to test the deformation of each bottle body under the same pressure; at this time, the air pump 14 can change the air pressure in the connecting seat 12, so as to change the downward pressure of each No. 2 limiting belt 9 on each bottle body, and further, when the deformation degree of each bottle body is different, at this time, each No. 2 limiting belt 9 can still fit the bottle body and maintain the same downward pressure, and at the same time, the No. 2 limiting belt 9 can maintain a high degree of fit with the bottle body, so that the pressure-bearing part of the bottle body can be evenly stressed;

[0047] S3: When each No. 2 limiting belt 9 presses down each bottle body, if the two ends of part of the bottle body are tilted too much, the middle part of the bottle body will be too sunken. At this time, the No. 2 limiting belt 9 is easy to stack toward the middle part of the bottle body along with the sunken bottle body, thereby affecting the contact area between the No. 2 limiting belt 9 and the bottle body and reducing the force-bearing area of ​​the bottle body; therefore, when the limiting mechanism 3 detects that the pressure value between part of the bottle body and the limiting mechanism 3 exceeds a certain level, the unfolding mechanism 6 in the upper outer frame 15 of the bottle body can stretch and unfold the No. 2 limiting belt 9 to both sides, thereby preventing the No. 2 limiting belt 9 from stacking toward the middle part of the bottle body along with the sunken bottle body, thereby affecting the force-bearing area of ​​the bottle body;

[0048] When the No. 2 limiting belt 9 generates too large a tensile deformation during the squeezing process with the bottle body, the No. 2 limiting belt 9 is concave upwards. The unfolding mechanism 6 can also detect the degree of concavity when the No. 2 limiting belt 9 contacts the bottle body, and tighten the No. 2 limiting belt 9 through the tensioning assembly 5, so that each No. 2 limiting belt 9 maintains a stable and consistent downward pressure when pressing down on the bottle body, thereby preventing the tension of individual No. 2 limiting belts 9 from being too low and affecting the force stability of the bottle body;

[0049] S4: Start the power assembly 8 to drive the No. 2 limiting belt 9 to rotate around the rotating rod 16. Under the horizontal limiting effect of the limiting mechanism 3 on the bottle body, the No. 2 limiting belt 9 can drive the bottle body to rotate, so as to perform pressure tests on all other parts of the bottle body at the same time. In this process, since the No. 2 limiting belt 9 can maintain a high degree of fit with the bottle body, it can prevent the bottle body from slipping during the rotation process, thereby improving the consistency of the detection parts of each bottle body;

[0050] S5: After the No. 2 limiting belt 9 presses the bottle body down to a certain extent, the No. 2 visual detector 7 is started. The No. 2 visual detector 7 detects the size of the projection area of ​​the shadow area where the No. 2 limiting belt 9 and the bottle body are in contact, thereby calculating the downward pressure area of ​​the No. 2 limiting belt 9 on the bottle body. Combined with the downward pressure of each No. 2 limiting belt 9 on the bottle body, the deformation degree range of the bottle body under force per unit area can be calculated.

[0051] In the above process, tensioning the second limiting belt 9 through the tensioning assembly 5 can prevent the second limiting belt 9 from sagging upward, resulting in a large difference between the actual contact area of the second limiting belt 9 with the bottle body and the projected area of the shaded area, thus affecting the calculation of the downward pressure area of the second limiting belt 9 on the bottle body.

[0052] As Figure 7 shown, a plastic bottle detection device provided by the present invention, the unfolding mechanism 6 includes a fixing frame 61, a second electric lifting seat 62, a roller 63, a third motor 64 and a guide bar 65;

[0053] The fixing frame 61 is fitted in the inner wall of the outer frame 15, and a second pressure sensor is provided between the upper end surface of one end of the fixing frame 61 and the outer frame 15. The fixing frame 61 is fixedly connected with a second electric lifting seat 62. The telescopic end of the second electric lifting seat 62 is fixedly connected with a third motor 64. The output shaft of the third motor 64 is fixedly connected with a roller 63. Two guide bars 65 are spirally arranged on the side wall of the roller 63, and the spiral directions of the two guide bars 65 are opposite.

[0054] In this embodiment, start the second electric lifting seat 62 to drive the roller 63 to move downward, start the third motor 64, the third motor 64 drives the roller 63 to rotate, the roller 63 drives the guide bar 65 to contact the second limiting belt 9, and under the push of the guide bar 65, the second limiting belt 9 is unfolded and flattened to both sides, avoiding the second limiting belt 9 from tightening and overlapping towards the middle along the width direction;

[0055] When the second limiting belt 9 sags upward, at this time the second limiting belt 9 squeezes the roller 63, and the roller 63 drives the fixing frame 61 to squeeze the second pressure sensor, thereby detecting the sagging degree of the second limiting belt 9.

[0056] As Figure 6 shown, a plastic bottle detection device provided by the present invention, the tensioning assembly 5 includes a first electric lifting seat 51 and a tensioning roller 52. The first electric lifting seat 51 is fixedly connected to the inner top surface of the outer frame 15. The telescopic end of the first electric lifting seat 51 is rotatably connected with a tensioning roller 52, and the tensioning roller 52 is elastically abutted against the second limiting belt 9.

[0057] In this embodiment, start the first electric lifting seat 51 to extend, and the first electric lifting seat 51 drives the tensioning roller 52 to press the second limiting belt 9 tightly, thereby increasing the tension of the second limiting belt 9.

[0058] As Figure 4 shown, a plastic bottle detection device provided by the present invention, the driving assembly 4 includes a threaded shaft 41, a second motor 42 and a slider 43;

[0059] The second motor 42 is fixedly connected to the second support frame 10. The output shaft of the second motor 42 is fixedly connected to a threaded shaft 41. The threaded shaft 41 is threadedly connected to a slider 43. The slider 43 is horizontally slidably connected to the second support frame 10. The slider 43 is fixedly connected to the fixed end of the third electric lifting seat 11.

[0060] In this embodiment, when the second motor 42 is started, the second motor 42 drives the threaded shaft 41 to rotate. The threaded shaft 41 drives the slider 43 to move horizontally through threaded transmission. The slider 43 drives the connecting seat 12 to move horizontally through the third electric lifting seat 11.

[0061] As Figure 3 shown, a plastic bottle detection device provided by the present invention. The limiting mechanism 3 includes a first support frame 31, an electric telescopic rod 32, a limiting frame 33 and a limiting groove 34.

[0062] The first support frame 31 is fixedly connected to the upper end surface of the detection table 1. The first support frame 31 is fixedly connected to an electric telescopic rod 32. The telescopic end of the electric telescopic rod 32 is fixedly connected to a limiting frame 33. A plurality of limiting grooves 34 are provided on the limiting frame 33. Each limiting groove 34 faces a support mechanism 2. A first pressure sensor is provided in each limiting groove 34.

[0063] In this embodiment, when the electric telescopic rod 32 is started to extend, the electric telescopic rod 32 drives the limiting frame 33 to move downward until the limiting grooves 34 on the limiting frame 33 contact the respective bottle bodies. At this time, the respective bottle bodies are horizontally and vertically limited through the limiting grooves 34.

[0064] As Figure 2 shown, a plastic bottle detection device provided by the present invention. The support mechanism 2 includes a support seat 21, a fixed shaft 22, a first motor 23, a first motor 23 and a first limiting belt 25.

[0065] The support seats 21 are all fixedly connected to the upper end surface of the detection table 1. One end of the support seat 21 is fixedly connected to a fixed shaft 22. The other end of the support seat 21 is fixedly connected to a first motor 23. The output shaft of the first motor 23 is fixedly connected to a rotating shaft 24. One end of the first limiting belt 25 is fixedly connected to the fixed shaft 22. The other end of the first limiting belt 25 is wound around the rotating shaft 24.

[0066] An induction component 26 is provided on the support seat 21. The induction component 26 can sense the depression degree when the first limiting belt 25 contacts the bottle body.

[0067] In this embodiment, the bottle body is placed on the first limiting belt 25. When the first limiting belt 25 is compressed and extended, the first limiting belt 25 sinks downward at this time, and the bottle body presses the induction component 26. The induction component 26 can sense the degree of depression when the first limiting belt 25 contacts the bottle body. At this time, the first motor 23 controls the rotation of the rotating shaft 24, and the rotating shaft 24 tightens the first limiting belt 25. By cooperating with the first limiting belt 25 and the second limiting belt 9, the positioning effect of each bottle body can be increased, and at the same time, the stress area of each bottle body can be increased, so that the stressed parts of each bottle body can be evenly stressed.

[0068] As Figure 2 shown, a plastic bottle detection device provided by the present invention, the induction component 26 includes a lifting rod 261 and a pressure sensing plate 262. The fixed end of the lifting rod 261 is fixedly connected to the support seat 21, and the telescopic end of the lifting rod 261 is fixedly connected to a pressure sensing plate 262. The pressure sensing plate 262 is arranged in the middle of the support seat 21 and is arranged below the first limiting belt 25.

[0069] In this embodiment, when the first limiting belt 25 sinks downward, the bottle body presses the pressure sensing plate 262 at this time, so as to sense the degree of depression of the first limiting belt 25.

[0070] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

[0071] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plastic bottle detection device, including a detection table (1), on which a plurality of first vision detectors for detecting the deformation degree of the bottle body can be arranged through brackets, characterized in that, The upper end surface of the detection platform (1) is provided with a plurality of support mechanisms (2) at equal intervals, the support mechanisms (2) being capable of supporting and limiting the bottle body, and a limiting mechanism (3) being respectively arranged on both sides of the support mechanism (2), the limiting mechanism (3) being capable of simultaneously limiting the vertical position of one end of all the bottle bodies, and the limiting mechanism (3) being capable of sensing the pressure when the bottle body tilts upward; The upper end surface of the detection platform (1) is fixedly connected to a No. 2 support frame (10), and the No. 2 support frame (10) is connected to a No. 3 electric lifting seat (11) through a driving component (4). The driving component (4) can drive the No. 3 electric lifting seat (11) to move horizontally. The telescopic end of the No. 3 electric lifting seat (11) is fixedly connected to a connecting seat (12), and an air pressure sensor is arranged in the connecting seat (12). The lower end surface of the connecting seat (12) is vertically slidable and sealed to a plurality of sliding seats (13), and the connecting seat (12) is connected to an air pump (14); Each sliding seat (13) is fixedly connected to an outer frame (15), and a plurality of rotating rods (16) are arranged in a rectangular shape on the outer frame (15). The rotating rods (16) are rotatably connected to the outer frame (15). A second limiting belt (9) is surrounded by the outside of all the rotating rods (16). A tensioning assembly (5) and a power assembly (8) are arranged on the outer frame (15). The tensioning assembly (5) is used to tension the second limiting belt (9). The power assembly (8) is driven by a driving shaft driven by a motor. The driving shaft drives the No. 2 limiting belt (9) to rotate around the rotating rod (16), and the power assembly (8) can drive the No. 2 limiting belt (9) to rotate. The middle side wall of the outer frame (15) is provided with a No. 2 visual detector (7), and both sides of the No. 2 visual detector (7) are provided with an unfolding mechanism (6). The unfolding mechanism (6) can stretch and unfold the No. 2 limiting belt (9) to both sides, and the unfolding mechanism (6) can also detect the degree of depression when the No. 2 limiting belt (9) contacts the bottle body.

2. The plastic bottle detection device according to claim 1, characterized in that, The unfolding mechanism (6) comprises a fixed frame (61), a second electric lifting seat (62), a rotating roller (63), a third motor (64) and a guide bar (65); The fixing frame (61) is embedded in the inner wall of the outer frame (15), and a No. 2 pressure sensor is arranged between the upper end surface of one end of the fixing frame (61) and the outer frame (15), the fixing frame (61) is fixedly connected to a No. 2 electric lifting seat (62), the telescopic end of the No. 2 electric lifting seat (62) is fixedly connected to a No. 3 motor (64), the output shaft of the No. 3 motor (64) is fixedly connected to a rotating roller (63), and two sections of guide strips (65) are spirally arranged on the side wall of the rotating roller (63), and the spiral directions of the two sections of guide strips (65) are opposite.

3. The plastic bottle detection device according to claim 1, characterized in that The tensioning assembly (5) includes a first electric lifting seat (51) and a tensioning roller (52). The first electric lifting seat (51) is fixedly connected to the inner top surface of the outer frame (15). The telescopic end of the first electric lifting seat (51) is rotatably connected to a tensioning roller (52), and the tensioning roller (52) is elastically abutted against the second limiting belt (9).

4. The plastic bottle detection device according to claim 1, characterized in that, The driving assembly (4) includes a threaded shaft (41), a second motor (42) and a slider (43); The second motor (42) is fixedly connected to the second support frame (10). The output shaft of the second motor (42) is fixedly connected to a threaded shaft (41). The threaded shaft (41) is threadedly connected to a slider (43). The slider (43) is horizontally slidably connected to the second support frame (10), and the slider (43) is fixedly connected to the fixed end of the third electric lifting seat (11).

5. The plastic bottle detection device according to claim 1, characterized in that, The limiting mechanism (3) includes a first support frame (31), an electric telescopic rod (32), a limiting frame (33) and a limiting groove (34); The first support frame (31) is fixedly connected to the upper end surface of the detection table (1). The first support frame (31) is fixedly connected to an electric telescopic rod (32). The telescopic end of the electric telescopic rod (32) is fixedly connected to a limiting frame (33). A plurality of limiting grooves (34) are provided on the limiting frame (33). Each limiting groove (34) is opposite to a support mechanism (2), and a first pressure sensor is provided in each limiting groove (34).

6. The plastic bottle detection device according to claim 1, characterized in that, The support mechanism (2) includes a support seat (21), a fixed shaft (22), a first motor (23), a first motor (23) and a first limiting belt (25); The support seats (21) are all fixedly connected to the upper end surface of the detection table (1). One end of the support seat (21) is fixedly connected to a fixed shaft (22). The other end of the support seat (21) is fixedly connected to a first motor (23). The output shaft of the first motor (23) is fixedly connected to a rotating shaft (24). One end of the first limiting belt (25) is fixedly connected to the fixed shaft (22), and the other end of the first limiting belt (25) is wound around the rotating shaft (24); An induction component (26) is provided on the support seat (21), and the induction component (26) can sense the depression degree when the first limiting belt (25) contacts the bottle body.

7. The plastic bottle detection device according to claim 6, characterized in that, The induction component (26) includes a lifting rod (261) and a pressure induction plate (262). The fixed end of the lifting rod (261) is fixedly connected to the support seat (21). The telescopic end of the lifting rod (261) is fixedly connected to a pressure induction plate (262). The pressure induction plate (262) is arranged in the middle of the support seat (21) and is arranged below the first limiting belt (25).

8. A method for detecting plastic bottles, which is applied to the plastic bottle detection device according to any one of claims 1-7, characterized in that, It includes the following steps: S1: Place the bottle bodies of each plastic bottle on each support mechanism (2) in sequence, and start the two limiting mechanisms (3) on the detection table (1). The two limiting mechanisms (3) respectively perform vertical limiting on both ends of all bottle bodies; S2: Start the drive assembly (4) to drive all the outer frames (15) to move horizontally until the second limit belts (9) in all the outer frames (15) move to the pressure test positions of the predetermined bottle bodies. At this time, start the third electric lifting seat (11) to extend, and the third electric lifting seat (11) drives all the second limit belts (9) to press down on each bottle body, so as to test the deformation conditions of each bottle body under the same pressure; S3: When each second limit belt (9) presses down on each bottle body, when the limit mechanism (3) detects that the pressure value between some bottle bodies and the limit mechanism (3) exceeds a certain degree, the unfolding mechanism (6) in the upper outer frame (15) of this bottle body can stretch and unfold the second limit belt (9) to both sides; S4: After the second limit belt (9) presses down the bottle body to a certain extent, start the second vision detector (7) at this time. By detecting the size of the projected area of the shadow area at the fitting position between the second limit belt (9) and the bottle body through the second vision detector (7), the pressing area of the second limit belt (9) on the bottle body can be calculated. Combining the downward pressure of each second limit belt (9) on the bottle body, the deformation degree range of the bottle body under the force per unit area can be calculated.

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