Product inspection and removal device

Abstract

The utility model relates to a product inspecting and removing device which comprises a horizontal conveying belt, and a pushing assembly and a backup plate are arranged on the same side of the conveying belt. The product checking and removing device further comprises a first photoelectric switch assembly, a second photoelectric switch assembly and a PLC module. The first photoelectric switch assembly comprises a first stand column, a cross beam and a first photoelectric sensor. The cross beam is vertically arranged above the conveying belt, can slide up and down along the stand columns and is selectively fixed on the stand columns; the first photoelectric sensor is movably arranged on the cross beam; the second photoelectric switch assembly comprises a second stand column, a second photoelectric sensor and a third photoelectric sensor, the PLC module is connected with the first photoelectric sensor, the second photoelectric sensor and the pushing assembly. The device has the advantages that the device is suitable for products with rectangular sections of different specifications and models, simple in structure and high in adaptability, and the rejection efficiency and the success rate of unqualified products on an assembly line can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of product conveying and sorting, in particular to a product inspection and rejection device. Background Art

[0002] When products with rectangular cross-sections, such as plastic bottles and glass bottles, are circulated on the production line, due to the difference in length and width, some production and processing procedures have strict requirements on the direction of product placement. For example, when filling or adding bottle caps, in order to enable the rectangular cross-section bottles to be arranged in an orderly manner with length against length and width against width to enter such procedures, the products need to be straightened.

[0003] At present, the common product alignment device uses several parallel conveyor belts with increasing speeds, and sets up curved special-shaped panels on both sides of the conveyor belts for alignment. However, the above structure occasionally causes the bottles to be incorrectly aligned, or even fall over. If these improperly placed bottles are not removed, it will cause production abnormalities after entering the next process.

[0004] At present, there are devices for rejecting defective products, but the above-mentioned devices are mainly designed for round bottles without directionality.

[0005] Therefore, it is necessary to improve and optimize the existing defective product rejection device so that it can better meet user needs. Utility Model Content

[0006] The purpose of the embodiment of the utility model is to address the shortcomings of the prior art structure and to propose a product inspection and rejection device. By setting two adjustable photoelectric switches, inverted bottles and bottles that are not aligned in a row can be rejected. The product inspection and rejection device is suitable for products with rectangular cross-sections of different specifications and models. It has a simple structure and strong adaptability, and can ensure the rejection efficiency and success rate of unqualified products on the assembly line.

[0007] In order to achieve the above-mentioned utility model purpose, a product inspection and rejection device proposed in the utility model embodiment is realized by the following technical scheme:

[0008] A product inspection and rejection device comprises a horizontal conveyor belt, on the same side of which a push assembly and a support plate for constraining the product boundary on the conveyor belt are provided; the characteristic is that: the product inspection and rejection device also comprises a first photoelectric switch assembly, a second photoelectric switch assembly and a PLC module; the first photoelectric switch assembly comprises a first column, a crossbeam and a first photoelectric sensor; the crossbeam is vertically arranged above the conveyor belt, can slide up and down along the first column and can be selectively fixed on the first column; the first photoelectric sensor is movably arranged on the crossbeam and is configured to be arranged with a sensing direction vertically toward the conveyor belt; the second photoelectric switch assembly comprises a second column and a second photoelectric sensor and a third photoelectric sensor movably fixed up and down on the second column, and the second photoelectric sensor and the third photoelectric sensor are configured to be arranged with a sensing direction horizontally toward the conveyor belt; along the conveying direction of the conveyor belt, the first photoelectric sensor and the second photoelectric sensor are both arranged upstream of the push assembly; the support plate is provided with a notch corresponding to the position of the second photoelectric sensor and the push block; the PLC module connects the first photoelectric sensor, the second photoelectric sensor and the push assembly.

[0009] The conveyor belt is also provided with a sorting assembly for allowing the products on it to be conveyed against the support plate.

[0010] The support plate is a vertically arranged unpowered roller, and the rotating shaft of the unpowered roller is arranged perpendicular to the conveyor belt.

[0011] The push assembly comprises a push block and a driving mechanism for driving the push block to extend intermittently.

[0012] The driving mechanism is a cylinder, and the pushing block is fixedly connected to the cylinder piston.

[0013] The driving mechanism comprises an electric push rod, and the push block is fixed on the push rod of the electric push rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model proposes a product inspection and rejection device, which can reject inverted bottles and bottles that are not aligned in a row by setting two adjustable photoelectric switches. The product inspection and rejection device is suitable for products with rectangular cross-sections of different specifications and models. It has a simple structure and strong adaptability, and can ensure the rejection efficiency and success rate of unqualified products on the assembly line. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above features and advantages of the present invention will become clearer and easier to understand through the following description of exemplary embodiments thereof in conjunction with the accompanying drawings.

[0016] Figure 1 A top view of a product inspection and rejection device according to an embodiment of the utility model;

[0017] Figure 2It is a side view of the product inspection and rejection device according to an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part 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.

[0019] The terms such as "front", "rear", "left", "right", "inside", "outside" etc. cited in this specification are only for the convenience of description and are not intended to limit the scope of application of the present invention. Changes or adjustments to their relative relationships shall be regarded as within the scope of application of the present invention without substantially changing the technical content.

[0020] In the description of the following embodiments, unless otherwise clearly specified and limited, the terms such as "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0021] See Figure 1-2 As shown, the embodiment of the utility model provides a product inspection and rejection device, including a horizontal conveyor belt 1, a push assembly 2 and a support plate 3 are provided on the same side of the conveyor belt 1, and the support plate 3 is used to constrain the movement boundary of the product on the conveyor belt. In a preferred embodiment, the support plate 3 is a vertically arranged unpowered roller, and the rotating shaft of the unpowered roller is arranged perpendicular to the conveyor belt.

[0022] The conveyor belt 1 may also be provided with a sorting assembly for conveying the products on it against the backing plate 3. Common structures of the sorting assembly include a fence, a fence, a conveyor belt, etc. that can form a trumpet-shaped structure with the backing plate. In addition, the process before the rejection process is a square-section bottle alignment process, and most of the alignment processes have the function of making the bottles against the backing plate. Therefore, the structure of the sorting assembly is not described in detail here, and the sorting assembly is omitted in the drawings.

[0023] The push assembly 2 is a conventional push rod type rejection mechanism, including a push block 21 and a driving mechanism that drives the push block to intermittently extend to push out the product on the conveyor belt 1. In a preferred embodiment, the driving mechanism is a cylinder 22, and the push block 21 is fixedly connected to the piston of the cylinder 22. Of course, push rod devices of other structures such as electric push rods can also be applied here.

[0024] The product inspection and rejection device also includes a first photoelectric switch component 4, a second photoelectric switch component 5 and a PLC module.

[0025] The first photoelectric switch assembly 4 includes a first column 41, a beam 42 and a first photoelectric sensor 43. The first column 41 is set on one side of the conveyor belt, and the beam 42 is vertically set above the conveyor belt 42, which can slide up and down along the first column 41 and can be selectively fixed on the first column 41. The first photoelectric sensor 43 can be movably set on the beam 42, and is configured to be set with the sensing direction vertically facing the conveyor belt 1. The position of the first photoelectric sensor 43 on the beam is related to the width of the product: when the product is correctly placed, its long side is in contact with the backing plate, and the first photoelectric sensor 43 cannot detect it at this time; when the product is not correctly placed, its width exceeds the detection area of ​​the first photoelectric sensor 43 and can be detected by the first photoelectric sensor 43.

[0026] The second photoelectric switch assembly 5 includes a second column 51 and a second photoelectric sensor 52 and a third photoelectric sensor 53 movably fixed on the second column 51, and the second photoelectric sensor 52 and the third photoelectric sensor 53 are configured to be arranged with the sensing direction horizontally facing the conveyor belt 1. The positions of the second photoelectric switch assembly 5 and the third photoelectric sensor 53 on the second column 51 are related to the product height: when the bottle is placed vertically, the second photoelectric sensor 52 and the third photoelectric sensor 53 can both detect signals; when the bottle is tilted, the second photoelectric sensor 52 located above cannot detect signals, but the third photoelectric sensor 53 located below can detect signals.

[0027] Along the conveying direction of the conveyor belt 2 , the first photoelectric sensor 43 and the second photoelectric sensor 52 are both arranged upstream of the pushing assembly 2 .

[0028] A notch 31 is formed on the support plate 3 at a position corresponding to the second photoelectric sensor 52 and the push block 21 .

[0029] The PLC module connects the first photoelectric sensor 43 , the second photoelectric sensor 52 , the third photoelectric sensor 53 and the ejection assembly 2 .

[0030] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model proposes a product inspection and rejection device, which can reject inverted bottles and bottles that are not aligned in a row by setting two adjustable photoelectric switches. The product inspection and rejection device is suitable for products with rectangular cross-sections of different specifications and models. It has a simple structure and strong adaptability, and can ensure the rejection efficiency and success rate of unqualified products on the assembly line.

[0031] The utility model intention and implementation methods of the utility model are described in detail through the embodiments above. However, a person skilled in the art in the field to which the utility model belongs can understand that the above embodiment of the utility model is only one of the preferred embodiments of the utility model. Due to space limitations, not all implementation methods can be listed here one by one. Any implementation that can embody the technical solution of the claims of the utility model is within the protection scope of the utility model.

[0032] It should be noted that the above content is a further detailed description of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation methods of the present invention are limited to these. Under the guidance of the above embodiments, technical personnel in this field can make various improvements and deformations on the basis of the above embodiments, and these improvements or deformations fall within the protection scope of the present invention.

Claims

1. A product inspection and rejection device, comprising a horizontal conveyor belt, a push assembly and a support plate for constraining the product boundary on the conveyor belt are provided on the same side of the conveyor belt; characterized in that: The product inspection and rejection device also includes a first photoelectric switch component, a second photoelectric switch component and a PLC module; the first photoelectric switch component includes a first column, a crossbeam and a first photoelectric sensor; the crossbeam is vertically arranged above the conveyor belt, can slide up and down along the first column and can be selectively fixed on the first column; the first photoelectric sensor is movably arranged on the crossbeam, and is configured to be set with a sensing direction vertically toward the conveyor belt; the second photoelectric switch component includes a second column and a second photoelectric sensor and a third photoelectric sensor that can be movably fixed up and down on the second column, and the second photoelectric sensor and the third photoelectric sensor are configured to be set with a sensing direction horizontally toward the conveyor belt; along the conveying direction of the conveyor belt, the first photoelectric sensor and the second photoelectric sensor are both arranged upstream of the push assembly; a notch is opened on the support plate corresponding to the position of the second photoelectric sensor and the push block; the PLC module connects the first photoelectric sensor, the second photoelectric sensor and the push assembly.

2. A product inspection and rejection device according to claim 1, characterized in that: The conveyor belt is also provided with a sorting assembly for allowing the products on it to be conveyed against the support plate.

3. A product inspection and rejection device according to claim 2, characterized in that: The support plate is a vertically arranged unpowered roller, and the rotating shaft of the unpowered roller is arranged perpendicular to the conveyor belt.

4. A product inspection and rejection device according to claim 3, characterized in that: The push assembly comprises a push block and a driving mechanism for driving the push block to extend intermittently.

5. A product inspection and rejection device according to claim 4, characterized in that: The driving mechanism is a cylinder, and the pushing block is fixedly connected to the cylinder piston.

6. A product inspection and rejection device according to claim 4, characterized in that: The driving mechanism comprises an electric push rod, and the push block is fixed on the push rod of the electric push rod.

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