Plastic bottle automatic detection machine with high separation precision

Abstract

The invention discloses a plastic bottle automatic detection machine with high separation precision. The plastic bottle automatic detection machine comprises a lifting mechanism, a bottle arranging mechanism and a detection table, bottle clamping belts are installed in the two fixing frames respectively, a material conveying belt is installed at one end of the detection table, a photoelectric sensor is installed at the end, close to the bottle clamping belts, of a limiting baffle, a third material channel is connected to one side of the middle of the material conveying belt, and an air spraying opening is formed in the position, right facing the third material channel, of the limiting baffle away from one side of the third material channel. The plastic bottles are integrally lifted and conveyed into the bottle arranging mechanism through the lifting mechanism, the stainless steel mesh screen is arranged at the end of a material channel of the lifting mechanism, impurities such as leftover materials mixed in the plastic bottles are screened out, and the materials are preliminarily removed; and then the plastic bottles are detected through the photoelectric sensor, unqualified products are removed through opening and closing of the pneumatic valve, the qualified products and the unqualified products can be automatically detected and automatically separated, manpower is saved, the production efficiency is improved, and the separation precision is high.

Description

Technical Field

[0001] The invention relates to the field of plastic bottle production, in particular to an automatic plastic bottle inspection machine with high separation accuracy. Background Art

[0002] During the mass production of plastic bottles in mold factories, some scraps that have not been cleaned up are mixed in. At the same time, some plastic bottles produced have unqualified lengths due to shaping and cooling. These scraps and unqualified products are mixed with qualified plastic bottles. The traditional way is to use manual sorting and classification to remove unqualified products and re-sort them. This method is time-consuming and labor-intensive, with high labor intensity and low work efficiency. Summary of the invention

[0003] The object of the present invention is to provide an automatic plastic bottle inspection machine with high separation accuracy to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic inspection machine for plastic bottles with high separation accuracy, comprising a lifting mechanism, a bottle unscrambling mechanism and an inspection platform; the lifting mechanism comprises a hopper, a first material channel and a stainless steel mesh screen, the hopper is arranged at the bottom of the first material channel, the stainless steel mesh screen is arranged at the top of the first material channel and extends to above the bottle unscrambling mechanism; the bottle unscrambling mechanism comprises an inclined rotatable inner turntable and a horizontal rotatable outer turntable, the outer turntable is arranged at the periphery of the inner turntable and is lower than the height of the outer turntable, an inner retaining ring is installed between the outer turntable and the inner turntable, an outer retaining ring is installed on the outer periphery of the outer turntable, an open end is arranged on the outer retaining ring and is connected to a conveyor belt, a high-speed camera is arranged on the conveyor belt, a jet head is arranged on one side of the high-speed camera, and the output direction of the jet head is consistent with the movement direction of the conveyor belt Vertically, a steering frame is installed at one end of the output direction of the jet head, and a plastic bottle steering component is correspondingly arranged in the steering frame; a discharge port is arranged on one side of the conveyor belt of the bottle unscrambling mechanism, and a second material channel extends from the discharge port; fixed frames are symmetrically installed on both sides of the end of the testing platform close to the bottle unscrambling mechanism, and bottle clamping belts are respectively installed in the two fixed frames, and the second material channel extends to the bottom of the two bottle clamping belts; a material conveyor belt is installed at the end of the testing platform away from the bottle unscrambling mechanism, the material conveyor belt is connected with the two bottle clamping belts and extends outward, and a limit baffle is installed on both sides of the material conveyor belt, and a photoelectric sensor is installed on one of the limit baffles close to one end of the bottle clamping belt; one side of the middle part of the material conveyor belt is connected to the third material channel, and a jet port is installed on the limit baffle on the side away from the third material channel at a position facing the third material channel.

[0005] As a preferred solution of the present invention, a lifting conveyor belt is arranged in the first material channel, the first material channel is inclined, and the stainless steel mesh screen is composed of a plurality of parallel and spaced dividing strips, which are bent in the middle and extend into the feeding port of the bottle unscrambling mechanism.

[0006] As a preferred solution of the present invention, the bottle clamping belt is closed and wrapped around a plurality of rollers, a driving motor is installed on each of the two fixing frames, and the output ends of the two driving motors are respectively connected to the central axes of the rollers at the ends of the bottle clamping belt.

[0007] As a preferred solution of the present invention, the material conveyor belt is driven by a second driving motor.

[0008] As a preferred solution of the present invention, a notch is provided on the limit baffle at the location of the third material channel.

[0009] As a preferred solution of the present invention, a fixing plate is installed on the detection table, a gas storage bottle is installed on the fixing plate, the output end of the gas storage bottle is connected to the air injection port through an air guide pipe, and a pneumatic valve is installed on the air guide pipe.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The present invention provides a lifting mechanism to lift the plastic bottles as a whole and transport them to the bottle sorting mechanism, and provides a stainless steel mesh screen at the end of the material channel to screen out impurities such as scraps mixed in the plastic bottles and preliminarily remove the materials; the bottle sorting mechanism is provided, and the plastic bottles are sorted by centrifugal force through the rotation of the inner turntable and the outer turntable, and then a steering component is provided, and the direction of the plastic bottles is identified by a high-speed camera, and then the direction of the plastic bottles is changed by the steering component to facilitate subsequent detection procedures, and then the plastic bottles are detected by photoelectric sensors, and unqualified products are removed by opening and closing of pneumatic valves. Qualified products and unqualified products can be automatically detected and automatically separated, saving manpower, improving production efficiency, and having high separation accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the specific structure of the stainless steel mesh screen of the present invention;

[0014] Figure 3 It is a schematic diagram of the specific structure of the bottle unscrambling mechanism of the present invention;

[0015] Figure 4 It is a schematic diagram of the specific connection structure of the bottle clamping belt and the material conveyor belt of the present invention.

[0016] In the figure: 1. lifting mechanism; 2. bottle unscrambling mechanism; 201. inner turntable; 202. outer turntable; 203. inner retaining ring; 204. outer retaining ring; 205. conveyor belt; 206. high-speed camera; 207. jet head; 208. steering frame; 3. testing platform; 4. hopper; 5. first material channel; 6. stainless steel mesh screen; 7. dividing strip; 8. discharge port; 9. second material channel; 10. fixing frame; 11. bottle clamping belt; 12. driving motor 1; 13. material conveyor belt; 14. driving motor 2; 15. limit baffle; 16. photoelectric sensor; 17. third material channel; 18. jet port; 19. fixing plate; 20. gas storage bottle; 21. air guide tube; 22. pneumatic valve. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] See also Figure 1-4The present invention provides a technical solution: an automatic inspection machine for plastic bottles with high separation accuracy, comprising a lifting mechanism 1, a bottle unscrambling mechanism 2 and a detection platform 3; the lifting mechanism 1 comprises a hopper 4, a first material channel 5 and a stainless steel mesh screen 6, the hopper 4 is arranged at the bottom of the first material channel 5, the stainless steel mesh screen 6 is arranged at the top of the first material channel 5 and extends to the top of the bottle unscrambling mechanism 2; the bottle unscrambling mechanism 2 comprises an inclined rotatable inner turntable 201 and a horizontal rotatable outer turntable 202, the outer turntable 202 is arranged at the periphery of the inner turntable 201 and is lower than the height of the outer turntable 202, an inner retaining ring 203 is installed between the outer turntable 202 and the inner turntable 201, an outer retaining ring 204 is installed at the outer periphery of the outer turntable 202, an open end is arranged on the outer retaining ring 204 and is connected to a conveyor belt 205, a high-speed camera 206 is arranged on the conveyor belt 205, a jet head 207 is arranged on one side of the high-speed camera 206, and the output direction of the jet head 207 is consistent with the running direction of the conveyor belt 205 The moving direction is vertical, a steering frame 208 is installed at one end of the output direction of the jet head 207, and a plastic bottle steering component is correspondingly arranged in the steering frame 208. A discharge port 8 is arranged on one side of the conveyor belt 205 of the bottle unscrambling mechanism 2, and a second material channel 9 extends from the discharge port 8; fixed frames 10 are symmetrically installed on both sides of one end of the detection platform 3 close to the bottle unscrambling mechanism 2, and bottle clamping belts 11 are respectively installed in the two fixed frames 10, and the second material channel 9 extends to the bottom of the two bottle clamping belts 11; a material conveyor belt 13 is installed at one end of the detection platform 3 away from the bottle unscrambling mechanism 2, and the material conveyor belt 13 is connected with the two bottle clamping belts 11 and extends outward, and a limiting baffle 15 is respectively installed on both sides of the material conveyor belt 13, and a photoelectric sensor 16 is installed on one of the limiting baffles 15 near one end of the bottle clamping belt 11; one side of the middle part of the material conveyor belt 13 is connected to the third material channel 17, and a jet port 18 is installed on the limiting baffle 15 on the side away from the third material channel 17 at a position facing the third material channel 17.

[0021] Furthermore, a lifting conveyor belt is arranged in the first material channel 5, the first material channel 5 is arranged at an angle, and the stainless steel mesh screen 6 is composed of a plurality of parallel and spaced-apart dividing bars 7, and the dividing bars 7 are bent in the middle and extend to the feeding port of the bottle unscrambling mechanism 2.

[0022] Furthermore, the bottle clamping belt 11 is closed and wrapped around a plurality of rollers, and a driving motor 12 is respectively installed on the two fixing frames 10 , and the output ends of the two driving motors 12 are respectively connected to the central axes of the rollers at the ends of the bottle clamping belt 11 .

[0023] Furthermore, the material conveyor belt 13 is driven by a second driving motor 14 .

[0024] Furthermore, a notch is formed on the limit baffle 15 at the location of the third material channel 17 .

[0025] Furthermore, a fixing plate 19 is installed on the detection platform 3 , a gas cylinder 20 is installed on the fixing plate 19 , an output end of the gas cylinder 20 is connected to the jet port 18 via an air guide tube 21 , and a pneumatic valve 22 is installed on the air guide tube 21 .

[0026] Working principle: In the present invention, the detection table 3 is provided with a general control system, and the general control system is respectively connected to the control ends of various control devices including the lifting conveyor belt, the bottle unscrambling mechanism 2, the drive motor 1 12, the drive motor 2 14, the photoelectric sensor 16, and the pneumatic valve 22. During the detection, the circuit is turned on, and a large number of plastic bottles to be screened are poured into the hopper 4 of the lifting mechanism 1. The lifting mechanism 1 works, and the plastic bottles are lifted to a higher height by the lifting conveyor belt and sent to the bottle unscrambling mechanism 2. The plastic bottles fall on the inner turntable 201, and the plastic bottles move to the edge of the inner turntable 201 as the inner turntable 201 rotates, and contact with the inner retaining ring 203 under the action of centrifugal force. As the inner turntable 201 rotates, the plastic bottles rise from a low position to a high position, and are transferred from the inner turntable 201 to the outer turntable 202, and then cling to the side wall of the outer retaining ring 204 as the inner turntable 201 rotates, and then After entering the conveyor belt 205, the high-speed camera 206 takes a picture of the plastic bottle, and the bottle mouth direction is determined by the image recognition system. The plastic bottles that do not conform to the bottle mouth direction are blown into the steering frame 208 through the air jet head 207, and then the plastic bottles enter the first material channel 5. At the end of the first material channel 5, there is a stainless steel mesh screen 6. This stainless steel mesh screen 6 is used as the first screening. Only plastic bottles can pass through the stainless steel mesh screen 6 and enter the round bucket of the bottle sorting mechanism 2. The scraps produced by production leak out from the stainless steel mesh screen 6, and the fallen scraps are caught in cartons or boxes. The rotation of the motor in the bottle sorting mechanism 2 drives the mold plate to rotate, thereby driving the plastic bottles to rotate, so that the plastic bottles come out in a straight line through the discharge port 8 in turn, and are pushed out through the second material channel 9. When the plastic bottles are pushed to the end of the second material channel 9, the plastic bottles enter the material conveyor belt 13 driven by the two bottle clamping belts 11. The photoelectric sensor 16 on the material conveyor belt 13 senses the length of time each plastic bottle has passed to judge qualified products and defective products, and sends the sensing signal to the main control system. When the detection time of the photoelectric sensor 16 exceeds or is less than the sensing time of the standard plastic bottle, the main control system controls the pneumatic valve 22 to open, and jets through the jet port 18 to separate the unqualified plastic bottles from the material conveyor belt 13 and blow them into the third material channel 17 for removal, thereby separating qualified products from unqualified products.

[0027] It is worth noting that the entire device is controlled by a main control button. Since the device matched with the control button is a common device and belongs to the existing common technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic bottle automatic inspection machine with high separation accuracy, characterized in that: The invention comprises a lifting mechanism (1), a bottle unscrambling mechanism (2) and a detection platform (3); the lifting mechanism (1) comprises a hopper (4), a first material channel (5) and a stainless steel mesh screen (6); the hopper (4) is arranged at the bottom of the first material channel (5); the stainless steel mesh screen (6) is arranged at the top of the first material channel (5) and extends above the bottle unscrambling mechanism (2); the bottle unscrambling mechanism (2) comprises an inclined rotatable inner turntable (201) and a horizontal rotatable outer turntable (202); the outer turntable (202) is arranged at the periphery of the inner turntable (201) and is lower than the outer turntable (202); 02) height setting, an inner retaining ring (203) is installed between the outer turntable (202) and the inner turntable (201), an outer retaining ring (204) is installed on the outer periphery of the outer turntable (202), an open end is arranged on the outer retaining ring (204) and connected to the conveyor belt (205), a high-speed camera (206) is arranged on the conveyor belt (205), a nozzle (207) is arranged on one side of the high-speed camera (206), the output direction of the nozzle (207) is perpendicular to the movement direction of the conveyor belt (205), and the nozzle (207) ) is installed at one end of the output direction of the bottle unscrambling mechanism (2), and a plastic bottle turning assembly is correspondingly arranged in the turning frame (208); a discharge port (8) is arranged on one side of the conveyor belt (205) of the bottle unscrambling mechanism (2), and a second material channel (9) extends from the discharge port (8); fixed frames (10) are symmetrically installed on both sides of one end of the inspection platform (3) close to the bottle unscrambling mechanism (2), and bottle clamping belts (11) are respectively installed in the two fixed frames (10), and the second material channel (9) extends to the bottom of the two bottle clamping belts (11); the inspection platform (3) is far away from the bottle unscrambling mechanism A material conveyor belt (13) is installed at one end of (2), the material conveyor belt (13) is connected with the two bottle clamping belts (11) and extends outwards, and a limit baffle (15) is installed on both sides of the material conveyor belt (13), and a photoelectric sensor (16) is installed on one of the limit baffles (15) close to one end of the bottle clamping belt (11); one side of the middle part of the material conveyor belt (13) is connected to the third material channel (17), and an air jet (18) is installed on the limit baffle (15) on the side away from the third material channel (17) at a position facing the third material channel (17).

2. According to claim 1, the automatic plastic bottle inspection machine with high separation accuracy is characterized by: A lifting conveyor belt is arranged in the first material channel (5), the first material channel (5) is arranged at an angle, the stainless steel mesh screen (6) is composed of a plurality of parallel and spaced-apart dividing strips (7), the dividing strips (7) are bent in the middle and extend into the feeding port of the bottle unscrambling mechanism (2).

3. The automatic plastic bottle inspection machine with high separation accuracy according to claim 1 is characterized by: The bottle clamping belt (11) is closed and wrapped around a plurality of rollers. A driving motor (12) is respectively installed on the two fixing frames (10). The output ends of the two driving motors (12) are respectively connected to the central axes of the rollers at the ends of the bottle clamping belt (11).

4. The automatic plastic bottle inspection machine with high separation accuracy according to claim 1 is characterized by: The material conveyor belt (13) is driven by a second driving motor (14).

5. The automatic plastic bottle inspection machine with high separation accuracy according to claim 1 is characterized by: The limit baffle (15) is provided with a notch at the location of the third material channel (17).

6. The automatic plastic bottle inspection machine with high separation accuracy according to claim 1 is characterized by: A fixing plate (19) is installed on the detection platform (3), a gas storage bottle (20) is installed on the fixing plate (19), an output end of the gas storage bottle (20) is connected to the air injection port (18) through an air guide pipe (21), and a pneumatic valve (22) is installed on the air guide pipe (21).

Images