KR20120009916A - Apparatus for detecting metallic foreign matter having dual conveyor and packing system using the same - Google Patents

Abstract

PURPOSE: A foreign metal material detector having a dual conveyer, capable of minimizing the installation of a belt conveyor, and a packing system using the same are provided to simultaneously perform the classification and detection of the products mixed with foreign metal materials into good products and poor products at a lower conveyor. CONSTITUTION: A foreign metal material detector having a dual conveyer comprises a detecting part and classifier. The detecting part detects whether a foreign metal material is mixed in the product packed with a metallic wrapping paper moving on an upper conveyor(31). A classifier classifies the products moving on a lower conveyor(51), according to a detection result of the detecting part, into good goods and inferior goods. The lower conveyor is installed in the lower part of the upper conveyor and receives the product, in which the detection process by the detecting part is completed, from an upper conveyor. The lower conveyor transfers the products in a traveling direction and in an opposite direction of the upper conveyor.

Description

Apparatus for detecting metallic foreign matter having dual conveyor and packing system using the same}

The present invention relates to a metal foreign material detector and a packaging system using the same, and more particularly, to detect a metal foreign material mixed in a product packaged with a metallic packaging such as aluminum, to classify as a defective product and to minimize the installation of a belt conveyor. The present invention relates to a metal foreign material detector having a dual conveyor and a packaging system using the same.

The manufacturing process of products such as foodstuffs, pharmaceuticals, cosmetics, industrial materials, etc. includes a packaging process for packaging the contents, and as the packaging paper used in the packaging process, a film made of paper, vinyl or plastic material is used. In particular, metallic packaging including metallic films has also been widely used in recent years. That is, aluminum deposition film packaging paper in which an aluminum thin film is deposited on one side of a plastic film is widely used. These aluminum deposition film wrappers prevent moisture from being exposed to the inside and expose the metal's inherent color and texture. In recent years, aluminum partial deposition wrapping paper in which an aluminum thin film is partially deposited on a plastic film has been used. The aluminum partially-deposited wrapping paper has a merit of identifying contents because there is a transparent portion while a metal effect and a pattern having various colors are formed.

Typically, packaging systems for products such as foodstuffs, pharmaceuticals, cosmetics, industrial materials, etc. include individual packaging machines for packaging the contents into individual products, and batch packaging machines for tying and packaging the individually packaged products. At this time, the movement of the product between the individual packing machine and the batch packing machine is made by a belt conveyor.

On the other hand, in the manufacturing process of products such as food, pharmaceuticals, cosmetics, industrial materials, metal foreign matters may be incorporated into the packaging of the product. Metal foreign material detectors that can be detected before shipping a product containing such a metal foreign material is used. Typically, a foreign body detector is installed between an individual packaging machine and a batch packaging machine.

In particular, when a metal foreign material detector is installed between an individual packaging machine and a batch packaging machine, a product in which a metal foreign material is mixed (hereinafter referred to as 'defective product') and a product in which no metal foreign material is found (hereinafter referred to as 'good product') Perform the classification process. At this time, the classifier which performs the classification process is linearly connected to the metal foreign material detector. That is, the sorting process takes place on the belt conveyor of the sorter linearly connected to the belt conveyor of the metal foreign material detector after passing through the belt conveyor end of the metal foreign material detector. The classifier is installed between the foreign matter detector and the batch packing machine.

As such, the conventional packaging system requires additional installation space for installing the foreign matter detector and the classifier because the foreign matter detector and the classifier are linearly connected to the individual baler and the batch baler. That is, since the metal foreign matter detector and the classifier are linearly connected, an installation space corresponding to a length corresponding to the sum of the lengths of the conveyors of the metal foreign material detector and the classifier is further required.

In general, a packaging system has a problem in that a large amount of additional installation space is required because a plurality of lines are installed by using an individual packaging machine, a metal foreign material detector, a classifier, and a batch packaging machine as one line.

In addition, after packaging, the product moves along the belt conveyor while still maintaining its current form, so that the appearance of the upper part of the product can be inspected but not the appearance of the lower part of the product. Therefore, in order to inspect whether or not the appearance of the product is defective, it is not cumbersome at all because it has to check each product one by one.

It is therefore an object of the present invention to provide a metal foreign material detector having a dual conveyor and a packaging system using the same, which can minimize additional installation space due to the installation of the metal foreign material detector.

It is another object of the present invention to provide a metal foreign material detector having a dual conveyor and a packaging system using the same, which can perform detection and classification of a product in which a metal foreign material is mixed.

It is still another object of the present invention to provide a metal foreign material detector having a dual conveyor and a packaging system using the same, which can eliminate the inconvenience of having to check each product one by one in order to inspect the appearance of the product. .

In order to achieve the above object, the present invention provides a metal foreign material detector having a dual conveyor comprising a detection unit and a classification unit. The detector detects whether a metallic foreign material is mixed in a product wrapped with a metallic wrapping paper moving on the upper conveyor. The sorting unit includes a lower conveyor installed at a lower portion of the upper conveyor to receive a product from which the detection process is completed by the detection unit from the upper conveyor and to move the product in a direction opposite to the moving direction of the upper conveyor. The product is classified as good or defective according to the detection result of the detection unit.

The metal foreign material detector having a dual conveyor according to the present invention is installed at the distal end portion in the moving direction of the upper conveyor and the distal end side in the moving direction of the lower conveyor, and inverts the product moved to the distal end of the upper conveyor. It may further include a reversing guide to move to the front end of the.

In the foreign metal detector having a dual conveyor according to the present invention, the inversion guide has a width corresponding to the width of the upper and lower conveyors and is bent in the letter C.

In the metal foreign material detector having a dual conveyor according to the present invention, the detection unit is installed in the upper conveyor and the distal end side of the upper conveyor at a predetermined interval whether or not there is a metal foreign material in the product passing below. It may include a plurality of detection stage for detecting the.

In the foreign metal detector having a dual conveyor according to the present invention, the sorting unit is installed on the lower conveyor and one side close to the distal end of the lower conveyor, the product with the metal foreign material detected by the detection unit is the lower A discharge member for pushing out of the conveyor, and a collection bin for collecting the product exiting the lower conveyor by the discharge member.

In the foreign metal detector having a dual conveyor according to the present invention, the discharge member may include at least one of a pusher or an air injector.

In the foreign metal detector having a dual conveyor according to the present invention, the collection box may be installed on the opposite side of the side the discharge member is installed around the lower conveyor.

The present invention also provides a packaging system comprising the metal foreign matter detector, the first belt conveyor, the individual packing machine, the second belt conveyor and the batch packing machine. One side of the first belt conveyor is connected to the upper conveyor of the metal foreign material detector. The individual packaging machine is connected to the other side of the first belt conveyor, wraps the contents into individual products in metallic wrapping paper, and provides the product to the upper conveyor of the metal foreign material detector via the first belt conveyor. One side of the second belt conveyor is connected to the lower conveyor of the metal foreign material detector. The batch packing machine is connected to the other side of the second belt conveyor, and receives a product having no metal foreign substance detected from the lower conveyor of the metal foreign material detector to the second belt conveyor, and bundles the received product. do.

According to the present invention, since the foreign metal detector detects whether the foreign material is mixed in the upper conveyor and classifies the defective product in the lower conveyor below the upper conveyor, the metal foreign material detector performs both the detection and the classification of the product in which the foreign metal is mixed. can do.

Since the foreign metal detector according to the present invention performs the detection and classification together in the dual conveyor installed up and down, compared to the installation of the conventional linear metal foreign material detector and classifier, the addition due to the installation of the metal foreign material detector and classifier Installation space can be minimized.

In addition, the upper conveyor inspects the appearance of the upper part of the product, and from the lower conveyor, the product is conveyed in an inverted state, so that the external inspection of the lower part of the product can be performed. can do. This eliminates the need for an operator to check each product upside down in order to inspect the appearance of the product.

1 is a block diagram showing a packaging system using a metal foreign material detector having a dual conveyor according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating a metal foreign material detector of FIG. 1.
FIG. 3 is a view illustrating a metal foreign material detector of FIG. 1, in which a product of an upper conveyor moves to a lower conveyor.
FIG. 4 is a view illustrating a metal foreign material detector of FIG. 1, in which a product in which a metal foreign material is detected in a lower conveyor is collected.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention. It should be noted that in the following description, only parts necessary for understanding the embodiments of the present invention will be described, and descriptions of other parts will be omitted so as not to distract from the gist of the present invention.

The terms or words used in the specification and claims described below should not be construed as being limited to the ordinary or dictionary meanings, and the inventors are appropriate to the concept of terms in order to explain their invention in the best way. It should be interpreted as meanings and concepts in accordance with the technical spirit of the present invention based on the principle that it can be defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely one preferred embodiment of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

1 is a block diagram showing a packaging system using a metal foreign material detector having a dual conveyor according to an embodiment of the present invention.

Referring to FIG. 1, the packaging system 100 using the metal foreign material detector 20 according to the present embodiment includes a plurality of individual packing machines 10, a plurality of metal foreign material detectors 20, and a collective packing machine 60. It is configured to include. In addition, the plurality of individual packaging machines 10, the plurality of metal foreign matter detectors 20 and the collective packaging machine 60 are connected to each other by belt conveyors 71 and 73. That is, the individual packing machine 10 and the metal foreign matter detector 20 are connected to each other by the first belt conveyor 71. The foreign material detector 20 and the batch packing machine 60 are connected to each other by the second belt conveyor 73.

The plurality of individual packaging machines 10 respectively package the contents of foodstuffs, medicines, cosmetics, industrial materials and the like into individual products 80 in metallic packaging. The packaged product 80 is transferred to the metal foreign object detector 20 connected through the first belt conveyor 71. In this case, the foreign material may enter the product 80 in the process of manufacturing the contents or in the process of individually packaging the contents in the individual packaging machine 10.

The metallic wrapping paper may be any metal as long as it is a paramagnetic body such as aluminum, chromium or manganese, or a metal of a diamagnetic body such as copper, silver or gold. The metal foreign material may be an alloy such as an austenitic stainless steel or a stainless steel material of martensite stainless steel.

The plurality of metal foreign matter detectors 20 detect whether or not metal foreign matter is mixed in the product 80 transferred through the first belt conveyor 71, and produce the product 80 according to the detection result. Classify as and defective product. The metal foreign object detector 20 includes a detector 30 and a classification unit 50, and has a structure in which the detection unit 30 and the classification unit 50 are arranged in an up-down structure. The detection unit 30 detects whether metal foreign matter is mixed in the product 80 while transferring the product 80 transferred through the first belt conveyor 71, and detects the product 80 in which the detection process is completed. Transfer to the lower fractionation unit 50. The classification unit 50 removes the defective product from the product 80 according to the detection result of the detection unit 30, and transfers the good product to the batch packing machine 60 through the second belt conveyor 73.

The batch packing machine 60 bundles and packages a plurality of individually packaged products 80 which are determined to be good in the metal detector 20.

Meanwhile, in the present exemplary embodiment, only one batch packing machine 60 is installed, but a plurality of batches 60 may be installed depending on the number of metal foreign material detectors 10 that can be connected to the batch packing machine 60. Alternatively, although the second belt conveyor 73 discloses an example in which the plurality of metal foreign matter detectors 20 and the collective packaging machine 60 are connected one-to-one, the present invention is not limited thereto. For example, the second belt conveyor 73 includes a plurality of 2-1 belt conveyors respectively connected to the plurality of metal foreign material detectors 20, and one side of the second belt conveyor 73 is connected to the plurality of 2-1 belt conveyors in a vertical direction, and the other side thereof is It may include a 2-2 belt conveyor connected to the batch packing machine 60. Alternatively, one side of the second belt conveyor 73 may be connected to the lower conveyor 51 of the sorting unit 50 of the plurality of metal foreign matter detectors 20 in a vertical direction, and the other side thereof may be connected to the batch packing machine 60. .

In particular, the metal foreign material detector 20 according to the present embodiment will be described with reference to FIGS. 1 to 4. 2 is a perspective view illustrating a metal foreign material detector of FIG. 1. FIG. 3 is a view illustrating a metal foreign material detector of FIG. 1, in which a product of an upper conveyor moves to a lower conveyor. 4 is a view illustrating a metal foreign material detector of FIG. 1, in which a product in which a metal foreign material is detected in a lower conveyor is collected.

As described above, the metal foreign material detector 20 includes a detection unit 30 and a classification unit 50, and collectively performs metal foreign material detection and classification on the product 80 packaged with metallic wrapping paper. In particular, the metal foreign material detector 20 transfers the product 80 in a dual conveyor method including an upper conveyor 31 of the detector 30 and a lower conveyor 51 of the sorting unit 50. The detection unit 30 detects whether a metallic foreign material is mixed in the product 80 packaged with the metallic wrapping paper moving on the upper conveyor 31. The sorting unit 50 is installed in the lower portion of the upper conveyor 31 and receives a product 80 from which the detection process is completed by the detecting unit 30 from the upper conveyor 31 in a direction opposite to the moving direction of the upper conveyor 31. The lower conveyor 51 which moves is provided, and the product 80 which moves in the lower conveyor 51 classifies according to the detection result of the detection part 30. FIG. In addition, the metal foreign material detector 20 according to the present exemplary embodiment may further include an inversion guide 40 connecting the detection unit 30 and the classification unit 50.

In particular, the detector 30 includes an upper conveyor 31 and a plurality of detectors 33. The upper conveyor 31 is a belt conveyor, the front end of which is connected to the distal end of the first belt conveyor 71 to receive the individually packaged product 80 and transfer it toward the plurality of detection stages 33. The plurality of detection stands 33 are installed at a front end of the upper conveyor 31 at regular intervals to detect whether there is a metal foreign material in the product 80 passing below.

At this time, the plurality of detection stages 33 includes first and second detection stages 33a and 33b, and a c-shaped leg in a direction perpendicular to the advancing direction of the upper conveyor 31 on the tip side of the upper conveyor 31. It can be installed in the form. The first and second detection stands 33a and 33b are sensor coils, respectively, and include first and second sensor coils disposed to face each other up and down about the belt 31a of the upper conveyor 31. That is, the first and second detection zones 33a and 33b generate magnetic fields in the first and second sensor coils to detect metal foreign matters mixed in the product 80.

The first sensor coils of the first and second detection tables 33a and 33b mainly detect the upper part of the product 80 moving over the belt 31a. The belt 31a allows the product 80 to pass therethrough. It is installed with a certain gap on top of it. The second sensor coils of the first and second detection tables 33a and 33b mainly detect the lower part of the product 80 and are provided at the lower part of the belt 31a.

Although not shown, the metal foreign material detector 20 includes a control unit for controlling the overall operation of the metal foreign material detector 20 including detection signals output from the plurality of detection tables 33. The controller may analyze the detection signals received by the plurality of detection tables 33 to determine whether there is a metal foreign material in the product 80, and output the determination result through a warning sound, an alarm lamp, a display window, and the like. In addition, the control unit transmits a signal for classifying the defective product 80b to the classification unit 50 at a speed at which the defective product 80b moves so that the defective product 80b can be classified by the classification unit 50.

The other detection unit 30 may follow the structure of the metal foreign material detection device disclosed in Korea Patent Publication No. 0543992.

The reversal guide 40 is installed at the distal end in the moving direction of the upper conveyor 31 and the distal end side in the moving direction of the lower conveyor 51, and the lower conveyor is turned upside down by inverting the product 80 moved to the distal end of the upper conveyor 31. Move to the tip of 51. In this case, the inversion guide 40 has a width corresponding to the width of the upper and lower conveyors 31 and 51 and is bent in an English letter C shape, and dams 41 are formed on both sides to prevent separation of the product 80. . That is, one side of the reversal guide 40 is disposed on the upper portion to cover the distal end of the upper conveyor 31, the other side is disposed close to the upper surface of the front end of the lower conveyor (51). The radius R between the distal end of the upper conveyor 31 and the inner side of the reversal guide 40 can pass through at least the product 80 inverted up and down along the distal end of the upper conveyor 31 and the reversal guide 40. Have a length. For example, when the product 80 has a hexahedral shape, the radius R may have a length corresponding to the diagonal length of the product 80. Accordingly, the product 80 moving out from the distal end of the upper conveyor 31 is rotated to fall down, wherein the upper edge portion of the upper portion of the upper portion of the upper portion of the product 80 is in contact with the inside of the reverse guide 40, the upper conveyor 31 The upper and lower portions of the product 80 are reversed while rotating while being guided by the distal end of the reversal guide 40, and the inverted product 80 is transferred to the distal end of the lower conveyor 51 through the other side of the reversal guide 40. do. In this case, reference numeral 81 denotes an upper surface of the product 80 before being reversed, and reference numeral 83 denotes a lower surface of the inverted product 80. Hatching is indicated on the upper surface 83 to distinguish the upper surface 81 and the lower surface 83 of the product 80.

At this time, the product 80 on the upper conveyor 31 is inverted while passing through the reversal guide 40 is transferred to the lower conveyor 51. Therefore, the upper conveyor 31 may inspect the appearance of the upper part of the product 80, and from the lower conveyor 51, the product 80 may be transferred in an inverted state to perform the external inspection of the lower part of the product 80. Therefore, even if the product 80 is not upside down, the appearance of the product 80 can be inspected for defects. Due to this, the worker can eliminate the hassle of having to check each product one by one in order to check the appearance of the product (80).

In addition, the sorting unit 50 includes a lower conveyor 51, a discharge member 53, and a collection box 55. The lower conveyor 51 is a belt conveyor, the distal end of which is located below the distal end of the upper conveyor 51, and the distal end of which is located below the distal end of the upper conveyor 51. 80). The discharge member 53 is installed at one side near the distal end of the lower conveyor 51, and as a result of the detection of the detector 30, the product 80 having the metallic foreign material is pushed out of the lower conveyor 51. The bin 55 collects the product, ie, the defective product 80b, pushed out of the lower conveyor 51 by the discharge member 53. And the distal end of the lower conveyor 51 is connected to the second belt conveyor 73, the good 80a is transferred to the second belt conveyor 73 through the lower conveyor (51).

At this time, the lower conveyor 51 is longer than the upper conveyor 31 so that the product 80 is stably received from the upper conveyor 31 and transferred to the second belt conveyor 73. That is, both ends of the lower conveyor 51 may be installed below the upper conveyor 31 in a form that can protrude out of both ends of the upper conveyor 31.

As the discharge member 53, at least one of a pusher or an air injector may be used. In this embodiment, an example in which an air injector is installed is disclosed. The discharge member 53 is driven under the control of the controller to push the defective product 80b out of the lower conveyor 51 among the products 80 moving on the lower conveyor 51.

Discharge member 53 is installed on one side around the lower conveyor 51, the collection box 55 may be installed on the opposite side to the discharge member 53 is installed. At this time, the collection box 55 may be composed of a discharge container 56 and a collection container 57. Discharge container 56 is disposed on the side facing the discharge member 53, the inlet (56a) is formed to enter the defective product (80b), the outlet 56b is formed in the lower portion connected to the inlet (56a) have. The bin 57 is disposed below the outlet 56b of the discharge bin 56 to collect the defective product 80b discharged to the outlet 56b.

As such, the foreign metal detector 20 according to the present exemplary embodiment detects whether the foreign metal is mixed in the upper conveyor 31, and the good 80b and the defective product in the lower conveyor 51 under the upper conveyor 31. Since 80b) is classified, the detection and classification of the product 80 in which the foreign metal is mixed can be performed together.

In particular, since the detection and sorting are performed together in the dual conveyors installed up and down, additional installation due to the installation of the metal foreign material detector 20 according to the present embodiment, compared to the installation of the conventional linear metal foreign material detector and the classifier. The space can be minimized. That is, since the lower conveyor 51 is arranged horizontally on the upper conveyor 31 below the upper conveyor 31, since the height of the upper and lower sides can be reduced but the length of the left and right can be reduced, the addition of the metal foreign material detector 20 is performed. The installation space due to this can be minimized.

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are merely presented specific examples to aid understanding, and are not intended to limit the scope of the present invention. In addition to the embodiments disclosed herein, it is apparent to those skilled in the art that other modifications based on the technical idea of the present invention may be implemented.

10: individual packing machine 20: foreign metal detector
30 detection unit 31 upper conveyor
33: detection table 40: inversion guide
50: classification unit 51: lower conveyor
53 discharge member 55: collection box
60: batch packing machine 71: first belt conveyor
73: second belt conveyor 80: product
100: packing system

Claims (8)

A detector for detecting whether a metallic foreign material is mixed in a product wrapped with a metallic wrapping paper moving on an upper conveyor;
A lower conveyor installed at a lower portion of the upper conveyor and receiving a product having a detection process completed by the detection unit from the upper conveyor and moving in a direction opposite to a moving direction of the upper conveyor; A classification unit classifying good or bad according to the detection result of the detection unit;
Metal foreign matter detector having a dual conveyor, comprising a. The method of claim 1,
An inversion guide installed at an end portion in a moving direction of the upper conveyor and a tip end in a moving direction of the lower conveyor, and inverting a product moved to the distal end of the upper conveyor to move it to the leading end of the lower conveyor;
Metallic foreign matter detector having a dual conveyor, characterized in that it further comprises. The method of claim 2, wherein the reversing guide
And a dual conveyor having a width corresponding to the widths of the upper and lower conveyors and being bent in the letter C. The apparatus according to claim 1,
The upper conveyor;
A plurality of detection stages provided at a front end of the upper conveyor at a predetermined interval to detect whether there is a metal foreign matter in the product passing below;
Metal foreign matter detector having a dual conveyor, comprising a. The method of claim 1, wherein the classification unit,
The lower conveyor;
A discharge member installed at one side of the lower conveyor near the distal end of the lower conveyor, the product having a metallic foreign material being pushed out of the lower conveyor;
A collection bin for collecting the product exiting the lower conveyor by the discharge member;
Metal foreign matter detector having a dual conveyor, comprising a. The method of claim 5, wherein the discharge member,
And a foreign material detector comprising at least one of a pusher or an air injector. The method of claim 1, wherein the collection box
The metal foreign material detector, characterized in that installed on the opposite side of the lower conveyor is installed around the lower conveyor. The foreign metal detector according to any one of claims 1 to 7;
A first belt conveyor having one side connected to an upper conveyor of the metal foreign material detector;
An individual packaging machine connected to the other side of the first belt conveyor, the contents of which are packaged into individual products in metallic wrapping paper, and the product being provided to the upper conveyor of the metal foreign material detector via the first belt conveyor;
A second belt conveyor having one side connected to a lower conveyor of the metal foreign material detector;
A batch packing machine connected to the other side of the second belt conveyor, receiving a product having no metal foreign material detected from the lower conveyor of the metal foreign material detector to the second belt conveyor, and bundle and package the provided product;
Packaging system using a foreign metal detector having a dual conveyor, characterized in that it comprises a.

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