JPH08133223A - Sensor for the number of small packs in carton - Google Patents

Abstract

PURPOSE: To detect an insufficient number of small packs when film wrapping a carton of cigarettes, which is unwrapped due to quality check, etc. CONSTITUTION: Above a horizontal carry guide for supplying a carton filled with goods to a film wrapping machine from a carton packer is a hopper for vertically supplying the carton. The carton (c) is supplied by the hopper in the direction in which two rows of small packs (b), each row having five, are stacked one on top of the other. Around the hopper are five proximity sensors 5, two of them are so arranged as to face both ends of each row of five small packs. And three of them are so arranged as to face the three small packs arranged between both the ends of each row of five small packs. Displacement of each small pack is detected from the electrostatic capacity of the aluminum foil of each small pack by means of its corresponding proximity sensor 5, and thus an insufficient number of small packs is detected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention detects a shortage of small boxes in a carton packed with 10 small boxes of tobacco products in which a metal foil is used as a packaging material. The present invention relates to a device for detecting the number of small boxes of carton packing.

[0002]

2. Description of the Related Art Conventionally, a packaging process in a tobacco manufacturing factory has been automated by a carton packing machine, and a cigarette product as a small box in which cigarettes are packed is supplied to the carton packing machine. 10 pieces of 2 layers of 5 pieces each are packed in a carton at the carton folding section. The carton filling formed by the carton filling machine is sequentially fed out to the conveyance guide and supplied to the outer packaging film machine, and the outer packaging film machine applies outer packaging such as cellophane to the carton filling.

By the way, in the quality inspection of cigarette products, the products packaged in cartons and packaged are inspected. At this time, the packaging film is removed from the packaged cartons, and the cartons are opened. ) Is taken out. Then, the tobacco products that have been inspected are packed again in cartons to be commercialized again.

[0004]

However, since the products once taken out by the inspection as described above are manually packed in cartons, the number of small boxes in the cartons may be insufficient. You need to sense the shortage.

[0005] By the way, conventionally, a separate dedicated machine has been used to wrap the re-carton-filled cartons with an outer-wrapping film. If possible, the work efficiency of remanufacturing can be improved. Therefore, in such a case, if the insufficient number of small boxes in the carton packing can be detected, the quality of the product as the carton packing is further guaranteed.

A sensor for detecting the shortage of the number of small boxes of the carton is conventionally used. Conventionally, the box of five small boxes is arranged in two steps, one upper and the other lower. It conveys horizontally and arranges a total of 10 proximity sensors, 5 each at a position facing the top and bottom of the carton packing on this transport path. With this proximity sensor, the capacitance of the metal foil of the packaging material in the small box is set. It is detected from the change of. But,
If there is a displacement of the small boxes in the carton packing that is insufficient in the number of small boxes, it may not be possible to detect, and there is a problem in detection accuracy.

The present invention is capable of accurately detecting the shortage of the number of small boxes in the carton-packed product, which is a carton-packed product in which 10 small boxes of tobacco products in which a metal foil is used as a packaging material are packed in a carton. Is an issue.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a device for detecting the number of small boxes of carton products according to the present invention comprises 10 rows of 5 small boxes of tobacco products in two layers. A carton-packed product in which the small boxes are packed in a carton, a device for detecting the number of small boxes in the carton-packed product for detecting a shortage of the number of small boxes in the carton-packed product. A conveyance path for conveying in the stacking direction, and five proximity sensors arranged facing the conveyance path for sensing whether or not the small boxes are adjacent to each other. Two proximity sensors facing the two ends in the row direction of the five rows of the small box, and the center of the five rows of the small box, with respect to the carton-stuffed articles conveyed in the conveyance path. It consists of three proximity sensors facing each other. And butterflies.

[0009]

In the device for detecting the number of small boxes of carton-packed articles according to the present invention, the carton-packed articles are conveyed in the stacking direction of the small boxes, and the five proximity sensors arranged facing this conveying path are, for example, electrostatic. Detects whether or not small boxes are adjacent to each other based on changes in capacity, etc. Further, since the carton-stuffed items are conveyed in the stacking direction of the small boxes by the conveying path, the proximity sensor has five rows 2.
It can be sensed at the timing as each layer passes through.

At this time, if there is a shortage of one piece in the layer which is originally a row of five pieces of carton packing and there is a displacement in one of the two small boxes at both ends, the two boxes at both ends will be displaced. Small boxes are no longer sensed by any of the proximity sensors, and it is possible to detect an insufficient number of boxes. If the two small boxes at both ends are in the correct position and the small box is displaced in the middle, the small boxes cannot be sensed by any of the three proximity sensors in the middle, and the shortage of the small boxes can be detected.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 3 is a perspective view showing a processing step in a carton packing machine equipped with a device for detecting the number of small boxes of carton packing according to an embodiment of the present invention, and FIG. 4 is a part of the carton packing machine. FIG. 5 is a crushing side view, and FIG. 5 is a view taken in the direction of arrows XX in FIG. 4, in which A is a cigarette product containing 20 cigarettes.
A carton packing machine that packs 10 pieces into two layers one by one, and B is an outer packaging film machine as an outer packaging machine that packages the cartoned pieces with cellophane.

[0012] C is a carton packing supply section for supplying the carton packing from which the outer packaging film has been removed by quality inspection, D is an exclusion section for eliminating an insufficient number of carton packings, and E is a carton packing. It is a pre-feeding unit that feeds the carton-stuffed products supplied from the supply unit C to the outer-wrapping film machine B side.

F1 is a first conveying guide for guiding the carton packing from the carton packing machine A to the lower part of the carton packing supply section C, and F2 is the carton packing from the lower part of the carton packing supply section C to the envelope film machine B. It is a 2nd conveyance guide to guide.

G is a drive unit for driving the apparatus, H is an operation panel equipped with a display unit and operation switches, J is a control panel composed of a microcomputer, and the operation panel H is a control panel J.
The control panel J controls the entire apparatus according to the contents operated by the operation panel H.

The carton packing machine in this embodiment is an improvement of the conventional carton packing machine. The carton packing machine A and the outer packaging film machine B, which are connected to each other, have a width of one carton packing machine. The carton packing supply section C and the rejection section D are provided between them, and the forward feed section E is provided on the outer packaging film machine B side.

The carton filling machine A comprises a carton supply section A1,
The tobacco product supply unit A2 and the carton folding unit A3 are provided, and as shown in FIG. 3, the carton supply unit A1.
Means to take out one carton a from a carton bundle which is stacked and stacked on a holding table (not shown) and to supply it vertically to the carton folding part A3, and the tobacco product supplying part A2 uses the pusher 10 to make 10 tobacco products b. Is supplied to the carton folding section A3.

A pusher 20 is disposed in the vicinity of the carton folding portion A3, and the pusher 20 reciprocates in the direction perpendicular to the feeding direction of each of the carton a and the tobacco product b fed to the carton folding portion A3. After moving, the ten tobacco products b of the carton folding part A3 are pressed against the carton a and inserted into the folding guide 30 (FIG. 4) to bend the upper and lower surfaces of the carton a.

The carton folding portion A as described above
By supplying the carton a and the tobacco product b to the carton 3 and the operation of the pusher 20, the carton a and the tobacco product b in the folding guide 30 are sequentially pushed forward, and the side of the carton a is folded and the like, and the carton is processed. The packed product c is conveyed on the first conveyance guide F1.

The envelope film machine B comprises an elevator section B1,
It is provided with an outer packaging film supply section B2 and a packaging section B3,
The carton filling c of the carton filling supply C or the carton filling c of the carton filling machine A is supplied to the elevator section B1 via the second conveyance guide F2 as described later. Further, the outer packaging film supply unit B2 cuts the roll-shaped cellophane d (FIG. 3) with the cutter 40 and supplies it to the packaging unit B3.

The elevator section B1 is provided with a pusher 5
0 (FIG. 4) is raised to the side of the packaging section B3 to be packed in the carton c
Is pushed up together with the cellophane d, and the packaging section B3 performs processing such as folding the bottom and side surfaces of the cellophane d to complete the cellophane packaging of the carton and discharge it.

The carton packing supply section C is arranged above the end of the second conveyance guide F2 on the first conveyance guide F1 side and is arranged perpendicular to the first and second conveyance guides F1 and F2. It is equipped with a hopper 1 as a conveying path that constitutes the device, and a carton stand 2 attached to the upper part of the hopper 1, and the carton packing product from which the outer packaging film has been removed by quality inspection is stored in the carton stand 2. This carton packing is supplied to the second transport guide F2 via the hopper 1.

FIG. 6 is a side view showing the hopper portion C1, the rejection portion D, the front feeding portion E and the waist portions of the first and second conveying guides F1 and F2. FIG. 2 is a part of the hopper 1, the front feeding portion E and It is a partial crush front view which shows the 2nd conveyance guide F2.

The hopper portion C1 is an opening / closing device 3 for supplying the carton-stuffed product c in the hopper 1 to the second transport guide F2.
A holding device 4 for holding the carton filling c in the hopper 1,
Further, as will be described later, there are provided five proximity sensors 5 constituting the number sensing device of the embodiment.

The hopper 1 is in the shape of a rectangle whose horizontal cross-section is slightly larger than the shape of the largest surface of the carton packing c, and the carton packing on the carton stand 2 is manually placed on top of the hopper 1. The carton-stuffed products c are lowered in the hopper 1, stacked in the hopper 1, and temporarily held.

The opening / closing device 3 is arranged on both side surfaces of the lower end portion of the hopper 1, and each of them has a nail 31 having an L-shaped vertical section. The nail 31 is pivotally supported on the upper side, one end of a link 32 is pivotally supported by the bent portion of the nail 31, and the other end of the link 32 is pivotally supported by the drive shaft of the air cylinder 33. Further, a stopper 31a for pressing the upper lid of the carton filling product c supplied from the carton filling machine A is attached to the lower surface of the nail 31.

The opening / closing device 3 is driven by the air cylinder 33 to rotate the nail 31 as shown by the arrow in FIG.
The carton packing c is received with the tip of the nail 31 closed inside the lower end of the hopper 1, and the nail 31 is opened to the outside to drop the carton packing c onto the second transport guide F2.

Further, the holding device 4 is disposed on both sides of the hopper 1 and above the opening / closing device 3, and each of the holding devices 4 has a rectangular brake 41 inserted into a rectangular hole 1a formed in the side surface of the hopper 1. This moving plate 4 is attached to the moving plate 42.
2 is held by a pin 43 provided upright on the side surface of the hopper 1 so as to be slidable in the horizontal direction, and a holding plate 42 is fixed to a drive shaft of an air cylinder 44.

The holding device 4 drives the air cylinder 44 to move the brake 41 as shown by the arrow in FIG.
Is closed inside the hopper 1 to hold and hold the carton filling c in the hopper 1, and the brake 41 is opened to release the carton filling c. The holding device 4 is set at a position such that the brake 41 holds the second and third carton packing items c from the bottom among the carton packing items c in the hopper 1.

With the above construction, the hopper portion C1 holds the second and third carton packing items c with the brake 41 closed when supplying the carton packing items c to the second transport guide F2. While opening nail 31, hopper 1
Only the bottom one of the carton packing c in the inside is dropped.
Then, after closing the nail 31, the brake 41 is once opened, the carton filling c in the hopper 1 is lowered by one carton onto the nail 31, and the brake 41 is closed to hold the carton filling c in the hopper 1. To do. By repeating the above operation, the carton-stuffed products c are intermittently supplied from the hopper 1 onto the second transport guide F2 one by one.

Proximity sensor 5 is a capacitance type proximity sensor, and a total of five sensors, one on each side of hopper 1 and three on the front, are located at the same height as the fourth step from the lower end of hopper 1. Is installed in position.

Here, when the carton-stuffed product c is supplied by the hopper 1 as described above, the carton-stuffed product c is conveyed in the direction shown by the arrow A in FIG. That is, the five small boxes b are conveyed in the stacking direction of two layers of five rows in which five small boxes b are aligned in the directions of arrow B and arrow C, respectively.

Further, as shown in FIG. 2, when the carton-stuffed product c is held in the hopper 1 by the holding device 4 (when it is stopped), the proximity sensor 5 is provided below the carton-stuffed product c. The position is set to be in a row of five.
Then, the proximity sensor 5 detects the shortage of the number of the lower five rows when the cartons c are held in the hopper 1, and the cartons c of the upper layer are dropped in the hopper 1 while the cartons c are held in the upper layer. An insufficient number of five columns is detected.

That is, it is possible to inspect the presence or absence of 10 small boxes in a carton with 5 proximity sensors, and by providing 2 of the 5 proximity sensors on one side of the carton. Even if a small box is displaced or tilted in the carton due to insufficient quantity, it can be detected.

The proximity sensor 5 of this embodiment is a known electrostatic capacitance type sensor which can detect the approach of both metal and non-metal in a non-contact manner from the change of the capacitance by utilizing the electric field, but it is a carton-packed product. Since the tobacco product (small box) inside is packed with aluminum foil, it can be detected with high accuracy.
In this embodiment, when it is detected that the distance from the head of the proximity sensor 5 to the aluminum foil in the small box b is 3 mm or more, it is determined that the number is insufficient.

As shown in FIG. 6, the excluding portion D is an excluding plate 6 disposed between the first conveying guide F1 and the second conveying guide F2, and an air cylinder 7 for rotating the excluding plate 6. An exclusion pusher 8 disposed above the exclusion plate 6 and an air cylinder 9 for vertically moving the exclusion pusher 8 as shown by an arrow in FIG.

The exclusion plate 6 is fixed to a support plate 6a whose one end is rotatably supported at the lower portion of the first transport guide F1.
a is connected to the drive shaft of the air cylinder 7 via a rotary arm 6b fixed to the end of the rotary shaft and a link 6c, and the exclusion plate 6 is driven by the air cylinder 7 as shown by the arrow in FIG. Is rotated to.

With the above-mentioned structure, when the feeding operation of the carton packing product c from the carton packing machine A to the first conveyance guide F1 is stopped when the carton packing product c is supplied from the hopper 1, the rejection unit D removes the plate. 6 is rotated downward and the exclusion pusher 8 is lowered to remove the carton-stuffed product c on the exclusion plate 6 downward. This secures the supply position of the carton-stuffed product c supplied from the hopper 1.

When the proximity sensor 5 detects a shortage of the carton-stuffed product c supplied from the hopper 1, the expulsion unit D operates by a forward feeding unit E described later to remove the carton to be excluded. When the stuffed product c comes on the exclusion plate 6, the exclusion operation is performed in the same manner as described above.

The forward feed section E is a forward feed pusher 11 for feeding the carton packing c supplied from the hopper 1 to the outer packaging film machine B side, a forward feed pusher cylinder 12 for driving the forward feed pusher 11, and a forward feed pusher. An elevating cylinder 13 for vertically moving 11 is provided.

The forward feed pusher 11 is arranged in a state in which a bifurcated plate is vertically projected from the two rows of notches g formed in the exclusion plate 6 and the second conveyance guide F2, and the lower end thereof is arranged. It is fixed to the drive shaft of the forward feed pusher cylinder 12. Further, in the forward feed pusher cylinder 12, the end portion on the side opposite to the drive shaft is pivotally supported on the rear surface of the terminal end portion of the second transport guide F2, and the end portion on the front feed pusher 11 side is pivotally supported by the link 12a. The link 12a is pivotally supported by the drive shaft of the lifting cylinder 13.

With the above construction, the forward feed pusher 11 is reciprocated by the drive of the forward feed pusher cylinder 12 as shown by the arrow in FIG. 6, and the forward feed pusher cylinder 12 is driven by the lifting cylinder 13 to move the arrow in FIG. It is rotated like.

The forward feed pusher cylinder 12 is provided with three position sensors 12b for detecting the position of the drive shaft,
In accordance with the detection signals from these position sensors 12b and the control state, the forward feed pusher 11 has a forward end (position "I" in FIG. 6), an exclusion position (position "II" in FIG. 6), and a backward end (position). The vehicle is stopped at position "III" in FIG. In the following description, the state in which the forward feed pusher 11 moves to the outer packaging film machine B side is referred to as "forward", and the state to move it to the carton packing machine A side is referred to as "reverse".

The drive unit G includes a motor 14 as a drive source,
A timing belt 15 that connects the drive shaft of the motor 14 and the main shaft B4 of the outer-wrapping film machine B at a predetermined rotation ratio, the single position clutch 16 attached to the main shaft B4 of the outer-wrapping film machine B, and the drive shaft of the motor 14 to the outer-wrapping film. An encoder 17 for detecting the timing of the cycle operation of the machine B is provided. Further, the main shaft A4 of the carton packing machine A is connected to the single position clutch 16 via a universal joint 18.

With the above construction, when the normal operation of supplying the carton filling product c from the carton filling machine A to the outer packaging film machine B is performed, the single position clutch 16 is connected and the motor 14 is used for the outer packaging film machine A and the outer packaging machine. The film machine B operates in synchronization.

On the other hand, when the carton package c from the carton package supply section C is supplied to the outer packaging film machine B, the single position clutch 16 is disengaged and the carton packaging machine A is stopped. Based on the control of the control panel J, the carton packing supply section C and the forward feed section E operate at the timing of the cycle operation of the outer packaging film machine B detected by the encoder 17.

FIG. 7 is a diagram for explaining the switching operation for switching the supply source of the carton filling product supplied to the outer packaging film machine B from the carton filling machine A to the carton filling product supply section C and the supply preparation process, and FIG. 8 is the carton filling product. FIG. 9 is a diagram for explaining the supply cycle from the supply unit C, FIG. 9 is a diagram for explaining the operation of removing the insufficient number of cartons, and the control panel J is configured to perform the operations as shown in FIGS. 7 to 9. To control.

First, as shown in FIG. 7 (A), when the carton packing product c from the carton packing machine A is being supplied to the outer packaging film machine B, the exclusion plate 6 is attached to the first conveyance guide F1 and the second conveyance guide F1. Level it so that it is at the same level as the transport guide F2,
The forward feed pusher 11 is lowered at the forward end below the second transport guide F2.

In this state, the carton filling product c is supplied from the carton filling machine A, and the elevator section B of the outer packaging film machine B is operated in one cycle of this supply operation.
The pusher 50 of No. 1 moves up and down once, and the carton filling items c are sequentially supplied. It should be noted that the operation of the pusher 50 of the elevator section B1 of the outer packaging film machine B operates in the same manner even when switched to supply the carton packed product c from the carton packed product supply section C.

Next, when switching the supply source of the carton filling product c from the carton filling device A to the carton filling product supply section C,
When a predetermined operation is performed on the operation panel H, the motor of the main body (not shown) is stopped to stop the operations of the cartoning machine A and the outer packaging film machine B, and the single position clutch 16 is disengaged. At this time, as shown in FIG. 7 (A), carton-stuffed articles c are continuously arranged on the first transport guide F1, the exclusion plate 6 and the second transport guide F2.

When a predetermined operation is performed on the operation panel H, first, as shown in FIG. 7 (B), one carton-stuffed product c is removed by the removing pusher 8 and the removing plate 6, and then, as shown in FIG.
As shown in (C), retract the forward feed pusher 11,
Further, as shown in FIG. 7 (D), the forward feed pusher 11 is raised from the cutout portion g of the exclusion plate 6.

Next, the clutch 19 is connected and the motor 14 is connected.
When the outer packaging film machine B is driven to complete the lowering of the pusher 50 of the elevator section B1 of the outer packaging film machine B, as shown in FIG. 7 (E), the forward feed pusher 11 is moved forward to pack the carton. One product c is fed out, and the forward feed pusher 11 is placed in this state to drop the carton filled product c from the hopper 1 of the carton filled product supply section C and supply it to the backward end side of the forward feed pusher 11. Next, as shown in FIGS. 7 (F) and (G), the forward feed pusher 11 is lowered and retracted as it is, and as shown in FIG. 7 (H), the forward feed pusher 11 is moved.
Is lifted from the notch g of the exclusion plate 6.

By the above operation, the carton-stuffed product supply section C
The first carton packing c is supplied from, but in this first operation, the last carton packing c supplied from the carton packing machine A onto the second conveyance guide is shown in Fig. 7 (E). The cartons c are supplied from the hopper 1 while the forward feed pusher 11 is being pushed.

This is because the carton-stuffed product c formed by the cartoner A is not completely dried at the gluing portion immediately after the carton a is bent. The gluing portion can be held by the forward feed pusher 11 until the product c is supplied.

Next, from the state of FIG. 7 (H), as shown in FIG. 8 (A), the forward feed pusher 11 is advanced to feed out one carton packed item c, and further, as shown in FIG. 8 (B). 8), the forward feed pusher 11 is retracted, and as shown in FIG. 8C, the carton-stuffed product c is dropped and supplied from the hopper 1. Similarly, the operation is repeated in the order of FIG. 8 (A) → FIG. 8 (B) → FIG. 8 (C) to sequentially supply the carton-stuffed product c from the hopper 1.

Further, when the proximity sensor 5 detects that the number of the pieces is insufficient while the carton-stuffed product c is being supplied from the hopper 1, the operation is switched by the control of the control panel J, as shown in FIG.
The exclusion operation is performed as shown in FIG.

That is, as shown in FIG. 9 (A), when an insufficient number of carton-stuffed products c ′ reaches the lower end of the hopper 1, the forward feed pusher 11 is used to send out the previous carton-stuffed product c. Then, it is stopped at a certain position and made to stand by, and as shown in FIG. Next, as shown in FIG. 9 (C), the forward feed pusher 11 is retracted to the exclusion position (position “II” in FIG. 6), the exclusion plate 6 is rotated downward, and the exclusion pusher 8 is lowered. Then, the insufficient number of cartons c'on the exclusion plate 6 is eliminated downward. And when this elimination operation is completed,
The supply operation is restarted from the state shown in FIG. 8 (B).

As described above, in this embodiment, the carton-stuffed product from which the outer-wrapping film produced in the quality inspection or the like is removed is supplied from the carton stand 2 to the hopper 1, so that it is automatically conveyed to the outer-wrapping film machine. The outer packaging film machine is operated in the same manner as in the conventional case, and five proximity sensors are provided in the hopper 1 that conveys the carton-stuffed products in the stacking direction of the small boxes to detect an insufficient number of small boxes. I am trying to do it.

It goes without saying that the present invention can be applied to any process as long as it is a transport path for transporting the carton-stuffed products in the stacking direction of the small boxes.

In the above embodiment, the capacitance type sensor is used as the proximity sensor, but the magnetic field is used to detect the metal body in a non-contact manner from the magnetic flux of the induced current generated in the aluminum foil portion. Other known sensors such as ones can also be used.

[0060]

As described above, according to the device for detecting the number of small boxes of a cartoned product of the present invention, 10 rows of small boxes for cigarette products are packed in two layers to form 10 layers. The carton packing thus prepared is conveyed in the stacking direction of the small boxes, and five proximity sensors are arranged facing this conveying path.
5 for small boxes for cartons packed in the transport path
Insufficient number of small boxes is provided by two proximity sensors facing the two ends in the row direction of each row and three proximity sensors facing the center three of the five rows of the small box. Since it is detected, if there is a shortage of one piece in the layer which is originally a row of five pieces of carton packing and there is a displacement in one of the two small boxes at both ends, the two pieces at both ends One of the proximity sensors will not detect the small box and the number of small boxes can be detected, and if two small boxes at both ends are in the correct position and the small box is displaced in the middle, the three small boxes will be detected. The small boxes are no longer sensed by any of the proximity sensors, and an insufficient number of boxes can be detected. Therefore, the shortage of the number of small boxes in the carton packing can be accurately detected.

[Brief description of drawings]

FIG. 1 is a diagram showing a positional relationship between a proximity sensor and a carrying direction of a carton packing product in an embodiment of the present invention.

FIG. 2 is a partially crushed front view showing a hopper, a part of a forward feeding part, and a second conveyance guide in the embodiment of the present invention.

FIG. 3 is a perspective view showing a processing step in the carton packing apparatus according to the embodiment of the present invention.

FIG. 4 is a partially crushed side view of the carton packing device.

FIG. 5 is a view as viewed in the direction of arrows XX in FIG. 4;

FIG. 6 is a diagram showing essential parts of a hopper section, an excluding section, a forward feeding section, and first and second conveyance guides in the embodiment of the present invention.

FIG. 7 is a diagram illustrating a switching operation of a carton packing product supply source and a supply preparation process in the embodiment of the present invention.

FIG. 8 is a diagram illustrating a supply cycle from the carton filling product supply unit in the embodiment of the present invention.

FIG. 9 is a diagram for explaining an operation of removing an insufficient number of cartons in the embodiment of the present invention.

[Explanation of symbols]

 1 ... Hopper, 5 ... Proximity sensor.

Claims (1)

[Claims] 1. A carton packed product in which a row of 5 small boxes of a tobacco product is made into two layers and 10 small boxes are packed in a carton. A carton for detecting an insufficient number of small boxes in the packed carton. A device for detecting the number of small boxes of packed products, comprising: a transport path for transporting the carton packed products in the stacking direction of the small boxes; and whether or not the small boxes are arranged facing the transport path. And 5 proximity sensors for respectively detecting whether or not each of the 5 proximity sensors has two ends in the two row directions of the five rows of the small box with respect to the carton packing article transported in the transportation path. Of a small box of a carton-packed product, which comprises two proximity sensors facing each other and three proximity sensors facing the center three of the five rows of the small box. Number sensing device.