JP3515664B2 - Metal detector - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a metal detector for detecting a metal object inside an article.

[0002]

2. Description of the Related Art A metal detector is generally composed of a conveyance mechanism and a detection head provided in the middle of the conveyance mechanism. The metal in an article conveyed on a belt of the conveyance mechanism is detected by the detection head to detect defective products. Make a distinction. This metal detector can detect metals in various articles that can be carried by a carrying mechanism.

When the article carried into the metal detector is dry noodles, the dry noodles are bound by the binding machine provided in the preceding stage. FIG. 7 is a perspective view showing an arrangement of a conventional binding machine and a metal detector. The binding machine 50 winds and seals a tape-shaped binding body 51 around the center of a predetermined number of dry noodles, and then discharges the dried noodles. The dried noodles 53 bound by the binding body 51 have a substantially columnar shape and a circular cross section. Further, the binding body 51 is preliminarily described with a trademark, product name, symbol, manufacturing company, etc., and the binding machine 50 discharges with the writing surface 51a positioned above. For this reason,
The sealing surface is located at the lower end and is discharged.

The bundle of dried noodles 53 is transferred from the binding machine 50 to the metal detector 55 and is transported on the belt of the transport mechanism 56 from one end to the other end. The dried noodles 53 reach the other end of the transport mechanism 56 after metal is detected by the detection head 57 portion during transport and defective products are removed by an alarm or the like. Thereafter, the dried noodles 53 are manually boxed and shipped. At the time of shipment, the dry noodles 53 are packed in a box so that the writing surface 51a of each dry noodle 53 is at the upper position.

[0005]

However, the metal detector 55 has the following inconveniences in detecting the metal of the dried noodles 53 having the special shape. When the dry noodles 53 are transferred from the binding machine 50 to the transport mechanism 56 of the metal detector 55, the dry noodles 53 roll, so the writing surface 51a of the binding body 51 is not necessarily located on the upper surface, and the writing surface 51a is on the lower surface or It may be transported sideways. This is because the belt discharge end 54a of the transport mechanism 54 of the binding machine 50 and the belt carry-in end 56a of the transport mechanism 56 of the metal detector 55 are circular in cross section, so that a step portion 58 having a predetermined dip is formed. Therefore, there is a problem that the circular dry noodles 53 roll due to the step portion 58. When the written surface 51a of the dry noodles 53 is not located at the upper portion, the boxing work must be performed so that the written surface 51a is at the upper position, which makes it difficult to pack the dry noodles 53a discharged one after another.

Further, the binding machine 50 provided in the preceding stage of the metal detector 55 has a structure in which the operation speed is variable according to the proficiency of the packing operator, and the carrying speed of the carrying mechanism 54 also changes. Therefore, the transport mechanism 54 of the binding machine 50
If the transport speed of the transport mechanism 56 of the metal detector 55 is not changed according to the operating speed of the dry noodle 53, there is a problem that the dried noodle 53 rolls due to the speed difference at the step 58. By the way, metal detector 5
When the transport speed of the transport mechanism 56 of No. 5 is changed, the speed of the dried noodles 53 passing through the detection head 57 portion is different. Therefore, the filter constant of the metal detection circuit in the detection head 57 is changed according to the change of the transport speed. Must be variable. Unless this filter constant is changed, the metal detection sensitivity cannot be maintained at the maximum sensitivity. Conventionally, the transport mechanism 5
Since the operator manually changed the filter constant in accordance with the variable speed of No. 6, there was a problem that the metal detection sensitivity cannot always be maintained in the optimum state.

Further, the transport mechanism 56 of the metal detector 55.
Used an endless belt, so dried noodles 53
The color and stains of the bundle 51 in the central portion of the belt tend to be transferred to the belt in a streak shape, and it took time to keep the belt hygienic.

The present invention has been made in order to solve the above problems, and when detecting the metal of an article, the article having a shape that easily rolls can be carried in and out of the pre-stage device without rolling. It is intended to provide a metal detector.

[0009]

In order to achieve the above object, in the metal detector of the present invention, as described in claim 1, an article (53) formed in a substantially cylindrical shape is discharged from the pre-stage device, A metal detector for detecting metal objects in an article while transporting them side by side, which is connected between a drive pulley (10) and a driven pulley (8) provided in the length direction of the apparatus. an endless conveyor belt (4), said article (53) of the width direction of the device in accordance with the length at predetermined intervals arranged in a pair with configured transport mechanism and (3), said conveyor A detection head (25) that is provided during the conveyance of the belt and detects a metal object in the article during the conveyance, and a discharge end (54a) of the conveyance conveyor (54) of the preceding apparatus at the carry-in portion of the conveyance belt. The carry-in pulley (20) extended to a position where the side parts overlap each other, A loading mechanism (23) having a connection belt (21) connected to a driven pulley (8) and a plate body extended and formed to have a predetermined length continuous with the discharge end (4b) of the transport belt. The article holding plate (30) configured to hold a plurality of articles discharged from the discharge end on the upper surface (30a).

Further, as described in claim 2, the carry-in mechanism (23) is a carry-in adjusting plate (rotatably movable in a height direction about a base end portion of a position coaxial with the driven pulley (8). 1
8) and a discharge end (5) of the transfer conveyor (54) of the preceding apparatus, which is rotatably supported by one end of the carry-in adjustment plate.
4a) Carry-in pulley (20) arranged at a position overlapping with 4a)
And a connection belt (21) that connects the carry-in pulley and the driven pulley, and the height position of the carry-in adjustment plate is set to the discharge end (54) of the transfer conveyor (54) of the preceding apparatus.
The configuration may be adjustable with respect to the height position of a).

Further, as described in claim 3, the drive pulley (10) is fixed at an arbitrary position in the axial direction with respect to one drive rotary shaft (9) connected to the drive motor (5). The driven pulley (8) has a free structure, and the driven pulley (8) has a pair of brackets (6a, 6a) formed separately.
b) is configured to be movable in the width direction of the apparatus, and the pair of conveyor belts (4) may be configured such that the interval in the width direction of the apparatus is adjustable according to the length of the article.

Further, as described in claim 4, the article retaining plate (30) is capable of inclining the height position of the other end portion (30b) downward by a predetermined angle, and the upper surface ( 30a) may be configured to apply a biasing force to the other end side.

Further, according to a fifth aspect of the present invention, the drive pulley (10) of the transport mechanism (3) has an axial direction with respect to one drive rotary shaft (9) connected to the drive motor (5). Of the connecting mechanism (13a, 13b, 1) provided between the pair of drive pulleys.
The rotational force of the drive motor (5) is transmitted through the drive motor (4), and the driven pulley (8) has a widthwise outside of a pair of brackets (6a, 6b) formed separately. The pair of conveyor belts (4) can be detachably attached to the drive pulley and the driven pulley in the front direction by being pivotally supported at a position.

The articles carried out side by side from the pre-stage apparatus have a circular cross section, and have a shape that easily rolls in the carrying direction. Therefore, the carry-in roller 20 and the connection belt 21 of the carry-in mechanism 23 are connected to the discharge end 5 of the transport conveyor 54 of the preceding apparatus.
They are provided so as to overlap each other in the width direction of 4a, and can be delivered from the preceding stage device without any drop. After the article is transferred from the connection belt 21 to the conveyor belt 4, the detection head 25 detects the metal object in the article and conveys the article to the discharge end 4b. The distance between the conveyor belt 4 and the connection belt 21 can be arbitrarily changed by adjusting the distance between the brackets 6a and 6b that pivotally support the driven pulley 8 and the movement of the drive pulley 10 in the axial direction of the drive rotary shaft 9. It is flexible and can correspond to the length of the article. The discharge end 4b is continuously provided with a plate-shaped article retaining plate 30, and the articles placed on the upper surface 30a of the article retaining plate 30 are pushed toward the other end 30b by an article coming from a later side and a predetermined number of the articles are retained. You can hold the item. This article storage plate 3
0, the other end 30b side can be tilted downward by a predetermined angle,
It assists this pushing force.

[0015]

1 is a side sectional view showing a metal detector of the present invention, and FIG. 2 is a cutaway plan view of the same portion. A transport mechanism 3 is mounted on support bases 2a and 2b provided at both ends of the base 1. The transport mechanism 3 includes an endless transport belt 4 that is stretched between both ends of the apparatus, and a drive motor 5 that drives and drives the transport belt 4.

Brackets 6a and 6b for supporting the transport mechanism 3 are provided symmetrically on the support base 2a, and brackets 7a and 7b are provided symmetrically on the support base 2b. In the brackets 6a and 6b, long grooves 6aa and 6bb extending in the width direction of the device are formed at two locations, respectively. The brackets 6a and 6b are movable in the width direction of the device, and are fixed to each other on the support base 2a with a predetermined width by screws 6c.

FIG. 3 is an enlarged side sectional view of the carrying-in portion of the apparatus, FIG. 4 is the same plan view, FIG. 5 is an enlarged side sectional view of the carrying-out portion of the apparatus, and FIG. 6 is a cutaway plan view of the same portion. The brackets 6a and 6b are formed so as to project toward the article carrying-in side in a side view, and the projections 6d of the brackets 6a and 6b are
Each driven pulley 8 is rotatably supported. The brackets 7a and 7b are formed so as to project on the article carrying-out side, and between the pair of brackets 7a and 7b,
The drive rotation shaft 9 is pivotally supported via the bearing 9a. Two drive pulleys 10 are fixed to the drive rotating shaft 9 in the width direction.

These pair of driven pulley 8 and drive pulley 1
At 0, the conveyor belts 4 are installed respectively. The drive rotation shaft 9 and the rotation shaft 5a of the drive motor 5 provided on the base 1 are respectively attached to the sprockets 13a and 13a.
b is fixed, and a chain 14 is installed on these sprockets 13a and 13b. Therefore, the drive motor 5
The rotation of the drive pulley 10 causes the drive pulley 10 to rotate via the drive rotation shaft 9, and the pair of conveyor belts 4 are driven to be conveyed. The upper position of the endless conveyor belt 4 is a position exposed on the upper surface of the apparatus, and conveys the conveyed article in the direction A in the figure.

Guide plates 15 are provided on the lower surface of the upper conveyor belt 4 along the extending direction of the two conveyor belts 4, respectively.
Is provided to indirectly support the article placed on the upper conveyor belt 4. The guide plate 15 is made of a resin material (non-metal material) such as a bake plate and has a plate shape.
It is continuously provided between the upper surfaces of a and 7a and between the upper surfaces of the brackets 6b and 7b. The pair of guide plates 15 are fixed to each other at a predetermined interval. The guide plate 15 is fixed to the brackets 7a and 7b with screws 15a, but is fixed to the brackets 6a and 6b with a long groove 16 extending in the width direction of the device.
Even when a and 6b are moved in the width direction of the device, the guide plate 15 itself can be fixed in a stationary position with respect to the device.

The drive motor 5, the sprockets 13a and 13b, the chain 14, a part of the drive rotary shaft 9 located between the pair of guide plates 15 are covered with a cover 17 provided between the guide plates 15. I am protected.

The brackets 6a and 6b and the drive pulley 10
Since each of them is movable in the width direction of the apparatus, the width of the conveyor belt 4 in the width direction can be varied, and the interval between the conveyor belts 4 can be adjusted according to the width of the article. For this reason, each of the guide plates 15 is formed to have a predetermined width that can accommodate the variable width of the conveyor belt 4. Further, a key 9a is provided in the axial direction of the drive rotary shaft 9 corresponding to the length of the variable width of the drive pulley 10, and the fixing screw 10a of the drive pulley 10 is fixed to the key 9a. It has become.

The protrusions 6d of the brackets 6a and 6b are
A carry-in mechanism 23 is provided. The carry-in mechanism 23 is generally composed of a carry-in adjustment plate 18, a carry-in pulley 20, and a connection belt 21. The carry-in adjustment plate 18 is provided inside the driven pulley 8 when viewed in the width direction, and the height of the one end portion 18a is variable around a base end portion 19 that is coaxial with the driven pulley 8. This variable position is a long groove 6f in which a screw 18c provided at a midway position of the carry-in adjustment plate 18 is formed in the height direction of the protrusion 6d.
Adjusted and fixed within the range.

A small-diameter carry-in pulley 20 is rotatably supported by one end 18a of the carry-in adjusting plate 18, and the carry-in pulley 20 is connected to the driven pulley 8 via a connection belt 21. The rotational force of the drive motor 5 is transmitted, and the drive motor 5 rotates with the rotation of the driven pulley 8 and is positioned at the foremost end in the loading direction (between the pair of belt discharge ends 54a of the transport mechanism 54 of the binding machine 50 described later). Position) to first contact the article to be loaded into the apparatus to assist the loading. The upper surface positions of the connection belt 21 and the conveyor belt 4 are at the same height at the uppermost position of the driven pulley 8.

The central position of the conveyor belt 4 penetrates the opening 25a of the detection head 25 fixed on the base 1. The detection head 25 has a structure in which a coil for metal detection is wound, and detects the metal object in the article conveyed on the conveyor belt 4. In addition to the articles, the conveyor belt 4 and the guide plate 15 pass through the opening 25a, but these are non-metal objects and do not affect the metal detection.

The indicator 26 judges, based on the detection signal of the detection head 25, whether or not a metal object is contained in the article, and gives a predetermined notification (alarm, etc.) when the article is mixed.
Stop control is performed. The indicator 26 is provided with a display section showing the degree of detection of metal (iron) and the degree of detection of non-metal (non-ferrous), an article type selection switch, a setting switch, and the like. Further, the metal detection circuit built in the indicator 26 can adjust the type of article and the detection sensitivity by a setting switch. The change of the filter constant described above corresponds to the change of the sensitivity by adjusting the filter circuit provided in the metal detection circuit.

At the rear end of the conveyor belt 4 in the conveying direction, a pair of article retaining plates 30 are provided symmetrically. The article holding plate 30 is fixed to the brackets 7a and 7b via a fixing plate 31. Two long grooves 32 extending in the width direction of the device are opened vertically in each fixing plate 31, and fixed to the brackets 7a and 7b via screws 33. The distance between the fixing plates 31 is varied to adapt to the width and length of the article.

The article retaining plate 30 is provided with two long grooves 34 of a predetermined length in the height direction on the front side and the back side of the figure, respectively. It is attached to the bent portion 31a. With the two long grooves 34 as the center, the article retaining plate 30 has the rear end portion 3
0b can be tilted by a predetermined angle. One end 30aa of the upper surface 30a of the article storage plate 30 extends to a side position of the drive pulley 10 (at least a carry-in side position beyond the central position of the drive pulley 10) and is continuous with the discharge end 4b. One end 30aa of the article storage plate 30 is provided at a position slightly lower than the height position of the conveyor belt hung on the drive pulley 10, and a predetermined action described later can be obtained. At least the upper surface 30a is preferably formed of a slippery material such as stainless steel.

The article holding plate 30 is formed to have a predetermined length in the length direction of the apparatus, and this length is a length corresponding to the number of articles to be held after being conveyed by the conveyor belt 4. Also,
The article storage plate 30 has a top surface 30a excluding the carry-in side position 3
Each is bent downward in each direction.

Next, the operation of the above configuration will be described. A binding machine 50 is provided in front of the metal detector of the present invention. The binding machine 50 discharges the dried noodles 53 one by one at a predetermined time interval. The dry noodles 53 are bundled by a bundle 51, and are discharged in a state of a circular cross section with the writing surface 51a positioned at the top. In addition, this discharge is performed by the two conveyor belts 54 b included in the conveyor mechanism 54 of the binding machine 50.
Discharge while supporting both ends of.

At the discharge end 54a portion of the conveyor belt 54b, the carry-in mechanism 23 of the metal detector is located inside the conveyor belt 54b. By adjusting the height of the carry-in adjustment plate 18, the carry-in pulley 20 of the carry-in mechanism 23 is adapted to the height position of the discharge end 54a of the conveyor belt 54b so that the carry-in pulley 20 can be delivered and carried in without falling. Thereby, rotation of the dry noodles 53 can be prevented.

The height adjustment of the carry-in mechanism 23 will be described. The transport mechanism 3 of the metal detector is always set to a constant speed. On the other hand, when the transport speed of the transport mechanism 54 of the binding machine 50 is the same, as shown in FIG.
3 is adjusted so that the height position of the discharge end 54a of the conveyor belt 54b and the height position of the carry-in pulley 20 are the same position. As a result, the dried noodles 5 that have been transported through the transport mechanism 54
No. 3 does not rotate when the dried noodles 53 are transferred by the carry-in pulley 20 portion (on the connection belt 21) that overlaps at the discharge end 54a, and after that, the dried noodles 3 are transferred onto the conveyor belt 4 on the driven pulley 8 and transferred to the inside of the transfer device. It will be transported.

On the other hand, a case where the transport speed of the transport mechanism 54 of the binding machine 50 is slower than that of the transport mechanism 3 of the metal detector which is always constant will be described. In this case, the discharge end 54
Assuming that the height position of a is the same as the height position of the carry-in pulley 20, the dried noodles 53 carried by the carrying mechanism 54 are overlapped at the discharge end 54a part.
The upper surface of the dried noodles 53 tries to rotate in the counterclockwise direction when delivered in (1) above. Therefore, the carry-in adjustment plate 18
Is adjusted to set the height position of the carry-in pulley 20 to a position slightly higher than the height position of the discharge end 54a of the conveyor belt 54b. As a result, the dry noodles 53 can be handed over without rotating as a result of a force (clockwise direction) that is slightly stopped when the dry noodles 53 are transferred to the carry-in pulley 20. When the transport speed of the transport mechanism 54 of the binding machine 50 is faster than that of the transport mechanism 3 of the metal detector, which is always constant, the height position of the carry-in pulley 20 is set opposite to the discharge end 54a of the transport belt 54b. Set slightly lower than the height position.

As described above, since the connection belt 21 for loading the dry noodles 53 and the transport belt 4 for transporting the inside of the apparatus are composed of two belts having a predetermined width, the dry noodles 5
3 is conveyed while supporting both ends in the length direction.
As a result, the vicinity of the binding body 51 in the central portion of the dry noodles 53 is in a non-contact state, and the color and dirt of the binding pair 51 do not adhere to the transport belt 4.

Further, by adjusting the interval between the conveyor belts 4 according to the length of the dry noodles 53 carried in, it is possible to convey the dry noodles 53 having many types (lengths). For this purpose, on the carry-in side, the screws 6c are loosened and the brackets 6a and 6b are fixed after being moved in the width direction of the device. On the carry-out side, the fixing screws 10a of each of the two drive pulleys 10 are loosened and fixed after moving in the axial direction of the drive rotation shaft 9. Further, the screws 33 are loosened and the fixing plate 31 of the article storage plate 30 is moved and fixed in the width direction of the apparatus.

The dried noodles 53, which have been transferred from the connection belt 21 onto the conveyor belt 4, pass through the detection head 25, and the detection head 25 detects a metal object. After that, the dried noodles 53 are delivered onto the article retaining plate 30 at the position of the discharge end 4b of the conveyor belt 4. Since the article holding plate 30 is a plate body having no transport mechanism, the dried noodles 53 placed on the article holding plate 30 do not move in the discharge direction by their own weight after the loading time.

At the discharge end 4b, the height position of the one end 30aa of the article retaining plate 30 is set to a position slightly lower than the height position of the conveyor belt 4, so that the dry noodles 53 when the conveyance power is lost. Rotation can be prevented. That is, the one end 30a of the article retaining plate 30 with respect to the transport belt 4
When the height position of a is the same or higher, the dried noodle 53 rotates counterclockwise by the rotational force of the conveyor belt 4 when the conveyor force is lost. By making the height position of the one end 30aa of the article holding plate 30 slightly lower than that of the conveyor belt 4, a force in the clockwise direction is applied to cancel the force, and the rotation of the dry noodles 53 can be prevented.

Therefore, the dried noodles 53 placed on the article holding plate 30 are sequentially placed on the article holding plate 30 by pushing the previous dried noodles 53 by the dried noodles 53 conveyed next. Become. Here, by loosening the screw 35 and inclining the article retaining plate 30 by a predetermined angle (the state shown in FIG. 5), the pushing force of the dried noodles 53 before conveyed by the dried noodles 53 conveyed later can be increased, and the conveyor belt It is possible to prevent the articles from staying at the four ends.

That is, the inclination angle of the article retaining plate 30 needs to be adjusted to a gentle inclination angle equal to or less than the angle at which the dried noodles naturally move in the direction of the other end 30b. This tilt angle does not include the horizontal state. As a result, the rotation of each dry noodle 53 can be prevented, and a predetermined number of dry noodles 53 in the preceding stage can be attached to the upper surface 30a of the article retaining plate 30 by the pressing force of the dry noodles 53 that comes later.
Can be slid on (without rolling). In order for the dried noodles 53 to move by sliding without rotating, it is also required that the upper surface 30a is formed of a slippery material (stainless steel or the like). The length of the article storage plate 30 is in units of the number of boxes (for example, in units of 5) at the time of boxing work.
To have a length corresponding to.

As a result, on the article retaining plate 30, the dry noodles 53 of the number to be taken out at the time of the boxing work can be retained in a state of being in contact with each other without being separated from each other, and the dry noodles 53 do not rotate and the bundle 51 is held. In this state, all the description surface 51a of (1) is located on the upper surface. Then, the worker can carry out the box packing work with the predetermined number of dry noodles 53 on the article storage plate 30 taken out.

In the metal detector which performs the above operation, the conveyor belt 4 can be easily replaced. The driven pulley 8 on which the conveyor belt 4 is hung is axially supported by the protruding portions 6d of the brackets 6a and 6b as viewed in the width direction of the device, and the drive pulley 10 is mounted on the internal position side by the brackets 7a and 6b. 7b, the driven pulley 8 and the drive pulley 10 can be easily removed by pulling out the conveyor belt 4 toward the front side. In this way, the mechanism for supporting the conveyor belt 4 is provided on the inner side of the conveyor belt 4 in the width direction of the apparatus, and no member for catching the conveyor belt 4 is formed on the front side. Easy to replace. When removing the conveyor belt 4, the article retaining plate 30 is fixed to the fixing plate 31.
It is removed from the bent portion 31a.

Further, since this metal detector is separated from the binding device 50 in the preceding stage, when performing maintenance, repair, replacement, etc. on either the binding device 50 or the metal detector. The other side can be left as it is. Since this metal detector has a constant conveyance speed of the dry noodles 53 on the conveyor belt 4 and is configured to compensate the speed difference with the binding machine 50 by adjusting the height of the carry-in adjusting plate 18 at the carry-in portion, Even if the delivery speed of the binding machine 50 at the preceding stage is changed, the metal detection sensitivity in the detection head 25 portion can always be maintained at the maximum sensitivity without changing the filter constants set at the time of shipment.

The carrying-in pulley 20 and the connecting belt 21 of the carrying-in mechanism 23 are constructed such that the carrying mechanism 54 of the binding machine 50 is carried by two carrying belts, and the carrying mechanism 54 has an inner position in the width direction. Although the structure is provided on the overlapping position, the structure may be provided on the overlapping position at the outer position in the width direction of the transport mechanism 54. In this case, the interval between the carry-in pulleys 20 needs to be at least equal to or less than the length of the dry noodles 53. In addition, even when the transport mechanism 54 of the preceding apparatus is composed of one flat belt, the carry-in pulley 20
May be provided at a position overlapping with the widthwise outer position of the transport mechanism 54.

In the above-described embodiment, an example in which a plurality of dry noodles 53 are bound by the binding body 51 as an article for metal detection has been described, but the present invention is not limited to this dry noodle 53, and the noodles are discharged in a state in which the writing surfaces are aligned. An article having a circular cross section (entirely cylindrical) can be discharged in a state where the writing surfaces are aligned without rotating the article. For example, examples of carrying sausages, bamboo rings, etc. having a description surface are also conceivable.

[0044]

According to the present invention, the carrying-in mechanism is extended so as to be overlapped at the side position of the discharge end of the pre-stage device, and the delivery from the pre-stage device can be performed without any drop. It can be carried in a state where it is prevented, and predetermined metal detection can be performed. Further, a continuous article holding plate is formed to extend at the discharge end of the transport mechanism, and a predetermined number of articles discharged from the discharge end can be held without rotating. If the height of the carry-in mechanism is variable at the side position of the discharge end of the pre-stage device, the height position of the discharge end of the pre-stage device can be adjusted, and the speed of the pre-stage device can be changed. Even in such a case, the articles can be carried in without rotating, even if the transportation speeds of the transportation mechanism are not set to the same speed correspondingly. At the same time, since the transport speed of the transport mechanism of the metal detector of the present invention can be made constant, it is not necessary to change the setting of the filter constant for metal detection, and the maximum sensitivity can always be maintained. Also,
It is possible to adjust the distance between the conveyor belts of the conveyor mechanism.
Even if the length of the article is changed, it can be easily dealt with. Further, if the article retaining plate is configured to be tiltable at a predetermined angle, it can be pushed out without rotating the article already retained on the upper surface of the retaining plate only by the force of the article discharged later, A desired number of articles can be reserved. Further, if the transport mechanism is provided inside the device centering around the transport belt, the transport belt can be detached and attached on the front side of the device, and the detaching operation can be easily performed.

[Brief description of drawings]

FIG. 1 is a side sectional view showing the overall configuration of a metal detector of the present invention.

FIG. 2 is a partially cutaway plan view of the same overall configuration.

FIG. 3 is an enlarged side sectional view of a carrying-in portion of the apparatus.

FIG. 4 is a plan view of the carry-in portion.

FIG. 5 is an enlarged side sectional view of a carry-out portion of the device.

FIG. 6 is a partially cutaway plan view of the carry-out portion.

FIG. 7 is a perspective view showing a conventional metal detector.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base, 3 ... Conveying mechanism, 4 ... Conveying belt, 4b ... Discharging end, 5 ... Drive motor, 6a, 6b, 7a, 7b ... Bracket, 6aa, 6bb, 6f, 16, 32, 34 ... Long groove, 6c , 15a, 18c, 33, 35 ... Screw, 6d ...
Projection part, 8 ... Driven pulley, 9 ... Drive shaft, 9a ... Key, 10a ... Fixing screw, 13a, 13b ... Sprocket, 14 ... Chain, 15 ... Guide plate, 18 ... Carrying adjustment plate, 20 ... Carrying pulley, 23 ... carry-in mechanism, 25 ... detection head, 26 ... indicator, 30 ... article retaining plate, 30a ... upper surface, 31 ... fixing plate, 51 ... binding body, 51a writing surface, 53
… Dried noodles.

Claims (5)

(57) [Claims] 1. A metal detector which detects a metal object in an article while discharging the article (53) formed in a substantially columnar shape from a pre-stage device and transporting the article (53) in a side-by-side state. the respectively provided with drive pulley in a direction (10) and a driven pulley (8) endless conveyor belt which is connected between (4), in the width direction of the device in accordance with the length of the article (53) A transport mechanism (3) configured by arranging a pair at a predetermined interval, a detection head (25) provided in the middle of transport of the transport belt, for detecting a metal object in an article in the middle of transport, In the carry-in part of the conveyor belt, the carry-in pulley (20) extended to a position where it overlaps on the side of the discharge end (54a) of the conveyor conveyer (54) of the preceding apparatus was connected to the driven pulley (8). A loading mechanism (23) having a connection belt (21), and An article which is composed of a plate body extending and formed to have a predetermined length continuous with the discharge end (4b) of the feeding belt, and a plurality of articles discharged from the discharge end can be retained on the upper surface (30a). A metal detector comprising: a retaining plate (30). 2. The carry-in mechanism (23) includes a carry-in adjustment plate (18) rotatable in a height direction about a base end portion of the driven pulley (8) coaxial with the driven pulley (8), and the carry-in adjustment plate. A carry-in pulley (20) that is rotatably supported at one end thereof and that is arranged at a position overlapping the discharge end (54a) of the transfer conveyor (54) of the preceding apparatus, the carry-in pulley, and the driven pulley. And a connection belt (21) for connecting the above. The height position of the carry-in adjustment plate is adjustable with respect to the height position of the discharge end (54a) of the transfer conveyor (54) of the preceding apparatus. The metal detector according to claim 1. 3. The drive pulley (10) is configured to be fixable at an arbitrary axial position with respect to one drive rotation shaft (9) connected to a drive motor (5), The driven pulley (8) includes a pair of brackets (6a, 6b) formed separately from each other so as to be movable in the width direction of the device. The metal detector according to claim 1, wherein the interval in the width direction of the device is adjustable according to the height. 4. The article retaining plate (30) has a second end (3).
The metal detector according to claim 1, wherein the height position of 0b) can be tilted downward by a predetermined angle, and a biasing force is applied to the other end of the suspended article on the upper surface (30a). 5. A drive pulley (1) of the transport mechanism (3)
0) is configured so that it can be fixed at any position in the axial direction with respect to one drive rotating shaft (9) connected to the drive motor (5), and is provided between these pair of drive pulleys. The rotational force of the drive motor (5) is transmitted via the connecting mechanism (13a, 13b, 14), and the driven pulley (8) has a pair of brackets ( The metal detector according to claim 1, wherein the pair of conveyor belts (4) are axially supported at an outer position in the width direction of (6a, 6b), and the pair of conveyor belts (4) are detachable from the drive pulley and the driven pulley in the front direction.