CN115591797A

CN115591797A - Screening machine

Info

Publication number: CN115591797A
Application number: CN202110720855.1A
Authority: CN
Inventors: 李宏超; 王开幸; 毕克用
Original assignee: Langfang Jinrun Technology Group Co ltd; Langfang Jinrun Otton Intelligent Equipment Co ltd
Current assignee: Langfang Jinrun Technology Group Co ltd; Langfang Jinrun Otton Intelligent Equipment Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2023-01-13

Abstract

The invention discloses a screening machine, comprising: a spitting mechanism; the conveying platform comprises a conveying belt, wherein the conveying belt is provided with a plurality of separation grooves in the width direction, and the separation grooves extend along the conveying belt for one circle; the conveying platform is arranged in front of the material spitting mechanism, and the rear end of the conveying belt is used for bearing materials spitted out of the material spitting mechanism and is distributed along the separation grooves in sequence through the separation grooves; the photographing identification mechanism is arranged above the conveying platform and is used for photographing the materials on the conveying belt to identify defective products in the materials on the separation grooves; an air flow injection mechanism; wherein: the airflow injection mechanism is arranged at the front end of the conveying belt; the air jet mechanism is provided with a plurality of groups of air jet holes which are in one-to-one correspondence with the separation grooves of the conveying belt, the air jet holes face downwards, and in the process that the defective products are separated from the front end of the conveying belt, the air jet holes corresponding to the separation grooves where the defective products are located jet air flow to blow off and remove the defective products.

Description

Screening machine

Technical Field

The invention relates to the technical field of material screening and screening, in particular to a screening machine.

Background

Among the prior art, the sieve separator majority is used for carrying out the automatic screening to the material of different overall dimension for the material of different overall dimension separately is accomodate, and is bright to be used for the rejection to the material defective products.

For example, workers are located at two sides of the conveying platform to observe whether defective products exist in the conveyed materials on the conveying platform, and after the defective products are found, the workers remove the defective products by means of tools or directly.

However, the manual defective product removing method has low working efficiency and low defective product removing rate, for example, when the number of the materials (such as granular food or seeds) on the conveying platform is large and the conveying speed is fast or the inherent defective product rate of the materials is high, all the defective products cannot be removed in time by manual work, and for example, when the materials on the conveying platform are stacked, the defective products in the stacked materials are difficult to be found.

In addition, although the defective products are identified by photographing, the defective products are not easily identified due to the fact that the materials are stacked and placed irregularly in the conveying process, and the positions of the defective products are not regular even if the defective products can be identified, so that the subsequent defective products are difficult to reject. In addition, the removal of defective products is difficult for large-volume and small-profile materials.

Disclosure of Invention

In view of the above problems in the prior art, the present invention is directed to a screening machine to solve the problems in the prior art.

In order to achieve the above object, the present invention adopts the following aspects.

A screening machine for screening particulate material having an arcuate surface, comprising:

the material spitting mechanism is used for spitting out materials;

a conveying platform comprising a conveying belt having a plurality of dividing grooves in a width direction thereof, the dividing grooves extending along the conveying belt by one turn; the conveying platform is arranged in front of the material spitting mechanism, and the rear end of the conveying belt receives the materials spit out of the material spitting mechanism and is distributed along the separation grooves in sequence through the separation grooves;

the photographing identification mechanism is arranged above the conveying platform and is used for photographing the materials on the conveying belt to identify defective products in the materials on the separation grooves;

an air flow injection mechanism; wherein:

the air flow injection mechanism is arranged at the front end of the conveying belt; the air flow injection mechanism is provided with a plurality of groups of air injection holes which are in one-to-one correspondence with the separation grooves of the conveying belt, the air injection holes face downwards, and in the process that the defective products are separated from the front end of the conveying belt, the air injection holes corresponding to the separation grooves where the defective products are located inject air flows to blow the defective products away and remove the defective products.

Preferably, the airflow injection mechanism further comprises a plurality of electromagnetic valves corresponding to the groups of air injection holes one to one, and the on-off of the air injection holes is controlled by the electromagnetic valves.

Preferably, the air jet mechanism is located above the front end of the conveyor belt, and the air jet holes of the air jet mechanism face to the front area of the conveyor belt.

Preferably, a material guide plate is arranged in front of the front end of the conveying belt, the material guide plate is inclined downwards, and a reserved gap is formed between the material guide plate and the conveying belt; wherein:

and the gas injection hole of the gas flow injection mechanism faces the reserved gap.

Preferably, a waste hopper is arranged below the front end of the conveying belt, and defective products rejected by the airflow of the air injection holes fall into the waste hopper.

Preferably, the spitting mechanism comprises:

a vibrating mechanism;

the vibrating plate is arranged above the vibrating mechanism and vibrates along with the vibrating mechanism, the rear end of the conveying platform is in butt joint with the vibrating plate, and the vibrating plate is used for spitting materials to the rear end of the conveying belt.

Preferably, the photographing identification mechanism comprises a photographing device body and a protective cover body positioned outside the photographing device body; the protection casing is in the region that the camera lens of the equipment body of shooing corresponds sets to the region of printing opacity.

Preferably, conveying platform still include the grillage body and set up in the belt roller of the preceding, rear end of grillage body, two are located to the conveyer belt cover on the belt roller, one of them the belt roller is by motor drive.

Preferably, the material guide plates are arranged in a structure capable of adjusting the position back and forth.

Preferably, the spitting mechanism and the conveying platform are arranged on the same mounting frame.

Compared with the prior art, the screening machine provided by the invention has the advantages that:

1. make the conveyer belt on the conveying platform form the multichannel and separate the slot, and then can arrange and transport the granule material of spitting from the mechanism of spitting in multiseriate mode, avoided the material to pile up on the one hand, on the other hand can transport a large amount of materials simultaneously, and then conveniently shoot the defective products in the accurate discernment material of recognition mechanism, the recognition rate to the defective products is high, can effectively replace manual identification, and the position of defective products is confirmed easily, convenient follow-up realization is to the rejection work of defective products.

2. Defective products on the separating grooves are removed in a corresponding air flow spraying mode by the aid of the air injection holes of the air flow spraying mechanisms corresponding to the separating grooves, and the removing method is simple and high in removing efficiency.

3. The screening machine provided by the invention can screen defective products from a large amount of conveyed particulate materials, can simultaneously remove a large number of defective products, and has high screening and removing efficiency.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention.

The summary of various implementations or examples of the technology described in this disclosure is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments, by way of example and not by way of limitation, and together with the description and claims, serve to explain the inventive embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.

Figure 1 is a perspective profile view of a screening machine according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view of a screening machine according to an embodiment of the present invention (with shielding parts hidden).

Fig. 3 is an enlarged view of a portion a of fig. 2.

Fig. 4 is an enlarged view of a portion B of fig. 2.

Fig. 5 is a schematic structural diagram of an external shape of an air flow injection mechanism in a screening machine according to an embodiment of the present invention.

Fig. 6 is a schematic perspective view of a screening machine according to an embodiment of the present invention (the conveyor belt is in an angle state with respect to the sorting tray).

Reference numerals:

10-a spitting mechanism; 11-a vibrating disk; 111-a funnel part; 112-a dividing and sorting plate; 1121-dividing the grooves; 12-a vibrating mechanism; 20-a conveying platform; 121-vibrating the body; 21-a conveyor belt; 211-separation trenches; 22-a plate frame body; 23-a motor; 30-an air flow injection mechanism; 31-gas injection holes; 32-a linear valve body; 33-a solenoid valve; 34-reserving gaps; 40-a photographing recognition mechanism; 41-photographing equipment body; 42-a protective cover; 50-a mounting frame; 61-a material guide plate; 62-a waste hopper; 100-qualified products; 101-defective products.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and the like, herein does not denote any order, quantity, or importance, but rather the terms "first," "second," and the like are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.

The embodiment of the invention discloses a screening machine, which is used for removing defective products in granular materials with arc surfaces, such as defective products in bean materials, can be used for removing defective products in granular seeds with arc surfaces, and can also be used for removing defective products in granular food with arc surfaces, such as damaged peanuts and mildewed peanuts.

As shown in fig. 1 to 6, the screening machine includes: the device comprises a mounting frame 50, and a spitting mechanism 10, a conveying platform 20, a photographing recognition mechanism 40 and an air-jet mechanism 30 which are all mounted on the mounting frame 50.

As shown in fig. 2 and 4, the discharging mechanism 10 includes a vibrating mechanism 12 and a vibrating pan, the vibrating pan 11 is mounted above the vibrating mechanism 12, the vibrating mechanism 12 is used for providing the vibrating pan 11 with vibration in a substantially front-rear direction, and the vibration generated by the vibrating mechanism 12 is provided by a vibrating motor 23.

The vibrating disk 11 is fixed on a vibrating body 121 of the vibrating mechanism 12, and the vibrating disk 11 comprises a funnel part 111 and a sorting plate 112; the funnel part 111 is surrounded by a plurality of side plates, and the funnel part 111 is used for containing granular materials to be screened, such as dry cooked peanuts; the sorting plate 112 is located at the bottom of the funnel part 111, and the sorting plate 112 extends towards the front to extend out of the bottom of the funnel part 111, and a front side plate of the funnel part 111 and the sorting plate 112 form an escape gap to allow the particulate material in the funnel part 111 to be spit out from the front side of the funnel part 111.

The dividing plate 112 has a plurality of dividing grooves 1121 formed in the width direction, and the dividing grooves 1121 extend to both ends in the length direction (in the front and rear directions) along the dividing plate 112.

When the vibrating mechanism 12 in the material discharge mechanism 10 drives the vibrating disc to vibrate, the bottom material in the funnel portion 111 is separated by the separating grooves 1121 of the separating plate 112 corresponding to the region, and the separated granular material moves toward the front end (not called as a material discharge end) of the separating plate 112 after passing through the clearance along the respective separating grooves 1121, so that the material is spread in multiple rows, and each row of material is sequentially arranged along the corresponding separating groove 1121 and is discharged from the material discharge end of the separating plate 112 at the same time.

As shown in fig. 2, the conveying platform 20 is disposed in front of the spitting mechanism 10, and the conveying platform 20 includes a rack body 22 for providing an installation base, belt rollers disposed at the front and rear ends of the rack body 22, a conveying belt 21 mounted on the two belt rollers, and a motor 23 for driving a belt pulley at the front side to drive the conveying belt 21 to realize a conveying operation.

As shown in fig. 4, the conveyor belt 21 has a plurality of dividing grooves 211 in the width direction thereof, the number and the interval of the plurality of dividing grooves 211 are the same as those of the dividing grooves 1121 of the dividing plate 112 in the spitting mechanism 10, and the cross sections of the two grooves may be V-shaped.

The material discharging end of the sorting plate 112 of the material discharging mechanism 10 is lapped on the rear end of the conveying belt 21, and the plurality of sorting grooves 1121 of the sorting plate 112 correspond to the plurality of separating grooves 211 of the conveying belt 21 one by one, so that the materials discharged from the material discharging end of the sorting plate 112 respectively fall into the plurality of separating grooves 211 of the conveying belt 21 correspondingly. Because the conveying belt 21 has a certain conveying speed, the particulate materials successively discharged by the discharging ends of the sorting plates 112 are arranged on each separating groove 211 at certain intervals and conveyed forward, and the interval between the particulate materials on each separating groove 211 can be adjusted by adjusting the conveying speed of the conveying belt 21. As shown in fig. 1, the conveyor belt 21 and the sorting plate 112 may be disposed flatly, as shown in fig. 6, or disposed at an angle, and if the conveyor belt 21 and the sorting plate 112 are disposed at an angle, the front end of the conveyor belt 21 and the vibrating plate 11 form a high-low configuration, which is advantageous for a plurality of the above-mentioned screening machines to be disposed in series in the conveying direction.

As shown in fig. 1 and 2, a photographing recognition mechanism 40 is disposed above the conveying platform 20, and the photographing recognition mechanism 40 includes a photographing apparatus body 41 and a protective cover 42. The photographing apparatus body 41 may be a camera, which may be a lens or a plurality of lenses, with the lens of the camera facing downward so as to be able to photograph the particulate materials on the respective lanes of dividing grooves 211 passing therebelow at the same time. The camera is arranged in a protective cover 42, which protective cover 42 is intended to prevent dust, impurities etc. from affecting the picture-taking effect and affecting the life of the camera. The region of the shield 42 corresponding to the lens of the camera is set to a transparent region so that the camera can photograph the material.

The photo recognition mechanism 40 also has a memory and a processor. The memory is used for storing data information of photos of qualified materials and data information of photos of defective products, for example, if the materials set to mildew are defective products, the data information of the defective products stored in the memory can include colors, such as dark green and black, presented by the mildew of the materials. For example, if the material with an insufficient shape is set as a defective product, the defective product data information stored in the memory may include the surface smoothness and shape defect of the material. In addition, the processor also stores the position information of the shot material, for example, the position of the shot material in the conveying direction of the conveying belt 21 and the corresponding separation groove 211.

The processor is configured to compare the picture of the material taken by the photographing apparatus body 41 with the data information of the qualified material and the defective product stored in the memory, so as to determine whether the coordinate positions of the defective product and the defective product, that is, the position in the conveying direction and the separating groove 211, are stored in the material covered by the picture.

As shown in fig. 1 and 2, a material guiding plate 61 is disposed in front of the conveyor belt 21, the material guiding plate 61 is disposed obliquely downward, a predetermined gap is formed between the material guiding plate 61 and the front end of the conveyor belt 21, the material moves to the front end of the conveyor belt 21 along with the conveyor belt 21 under the conveying action of the conveyor belt 21, and the material (non-defective products 100) falls into the material guiding plate 61 due to its inertia. In some preferred embodiments, the material guiding plate 61 and the mounting frame 50 are also configured to be adjustable back and forth, so that the material can fall onto the material guiding plate 61 after the conveying speed of the conveyor belt 21 is adjusted.

As shown in fig. 3 and 5, the air jet mechanism 30 is disposed in the corresponding region above the reserved gap 34, the air jet mechanism 30 includes a linear valve body 32, the linear valve body 32 is horizontal, a plurality of groups of air injection holes 31 are opened on the linear valve body 32 in the direction of the reserved gap 34, the plurality of groups of air injection holes 31 are arranged along the length direction of the linear valve body 32, that is, arranged along the arrangement direction of the separation grooves 211 of the conveyor belt 21, and each group of air injection holes 31 is in one-to-one correspondence with each separation groove 211 in position. Each set of the injection holes is controlled by one solenoid valve 33, that is, the solenoid valve 33 is controlled by an electric signal to inject the air flow from the air injection holes 31.

When the photographing recognition mechanism 40 recognizes the presence of defective products by photographing a photograph, the position in the conveying direction of the recognized defective products and the partition groove 211 in which the recognized defective products are located are determined. The processor in the photographing recognition mechanism 40 calculates the time for sending out the electrical signal based on the parameters such as the moving speed of the conveyor belt 21, the distance between the air jet mechanism 30 and the defective product, and sends the electrical signal to the electromagnetic valve 33 corresponding to the air jet hole 31 corresponding to the separating groove 211 where the defective product is located, so that when the defective product 101 flies out from the conveyor belt 21 or passes through the reserved gap 34, the corresponding air jet hole 31 jets air towards the defective product 101 to make the defective product 101 move downwards, so as to prevent the defective product from falling into the material guide plate 61 along with the defective product 100, and further, the defective product is removed. Since each set of the gas ejection holes 31 is controlled by the respective solenoid valves 33, the defective products existing in the different partition grooves 211 can be ejected with gas flows to be rejected sequentially or simultaneously.

In order to collect rejected defective products, a waste hopper 62 is provided in the area near below the reserved space 34, and the defective products ejected by the air flow fall into the waste hopper 62 through the reserved space 34 to be collected.

In some preferred embodiments, as shown in fig. 5, each group of the gas injection holes 31 includes three gas injection holes 31, the three gas injection holes 31 are arranged in the width direction of the partition groove 211, and the three gas injection holes 31 simultaneously inject the gas flow to enable the defective product to be more uniformly subjected to the downward gas flow force.

The screening machine provided by the invention has the advantages that:

1. make the conveyer belt 21 on conveying platform 20 form multichannel partition slot 211, and then can arrange and transport the granule material of spitting out from spitting material mechanism 10 with multiseriate mode, avoided the material to pile up on the one hand, on the other hand can transport a large amount of materials simultaneously, and then conveniently shoot the defective products in the accurate discernment material of recognition mechanism 40, the recognition rate to the defective products is high, can effectively replace manual identification, and the position of defective products is confirmed easily, convenient follow-up realization is to the rejection work of defective products.

2. Defective products on the separating grooves 211 are removed in a mode of correspondingly spraying air flow by the air spraying holes 31 of the air flow spraying mechanisms 30 corresponding to the separating grooves 211, the removing method is simple, and the removing efficiency is high.

Moreover, although exemplary embodiments have been described herein, the scope of the present invention includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or alterations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.

The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. In addition, in the above-described embodiments, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.

Claims

1. A screening machine for screening particulate material having an arcuate surface, comprising:

the material spitting mechanism is used for spitting out materials;

the photographing and identifying mechanism is arranged above the conveying platform and is used for photographing the materials on the conveying belt to identify defective products in the materials on the separation grooves;

an air flow injection mechanism; wherein:

2. The screening machine of claim 1, wherein the jet mechanism further comprises a plurality of solenoid valves corresponding to the sets of air injection holes one to one, and the air injection holes are controlled to be opened and closed by the solenoid valves.

3. A screening machine according to claim 1 wherein the air jet mechanism is located above the forward end of the conveyor belt, the air jet holes of the air jet mechanism being directed towards the region in front of the conveyor belt.

4. The screening machine of claim 3, wherein a material guide plate is arranged in front of the front end of the conveying belt, the material guide plate is inclined downwards, and a reserved gap is formed between the material guide plate and the conveying belt; wherein:

and the air injection hole of the air flow injection mechanism faces the reserved gap.

5. A screening machine according to claim 3 wherein a reject hopper is provided beneath the leading end of the conveyor belt into which rejects rejected by the air flow from the air jets fall.

6. A screening machine according to claim 1 wherein said spitting mechanism comprises:

a vibrating mechanism;

7. The screening machine of claim 1, wherein the photographing apparatus identification mechanism comprises a photographing apparatus body and a protective cover body located outside the photographing apparatus body; the protection casing is in the region that the camera lens of the equipment body of shooing corresponds sets to the light transmission region.

8. The screening machine of claim 1, wherein the conveying platform further comprises a pallet body and belt rollers disposed at the front and rear ends of the pallet body, the conveying belt is sleeved on the two belt rollers, and one of the belt rollers is driven by a motor.

9. A screening machine according to claim 4 wherein the guide plates are arranged in a configuration which allows fore and aft adjustment of the position.

10. A screening machine according to claim 1 wherein the spitting mechanism is provided on the same mounting frame as the conveying platform.