JP2709686B2 - Defective device in automatic box making machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for discharging defective products in an automatic box making machine, which folds and glues material paper cut into an appropriate shape to produce a folded paper box and carries it out. is there.

[0002]

2. Description of the Related Art Conventionally, inspection of defective products in a paper box manufactured by an automatic box making machine has been carried out at the discretion of an operator when the paper box is carried out of the machine.

[0003]

However, finding a defective product in manual work after unloading requires a lot of time and effort based on experience, and there is a fear that it may be overlooked. There is a problem that can not be managed.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a supply section for supplying a material sheet cut into an appropriate shape, and a plurality of sections for performing a process such as folding, gluing and sticking while transferring the material sheet following the supply section. In an automatic box making machine having a production line consisting of a process section, an inspection sensor for detecting a supply failure or a process failure of a material paper at an appropriate place in the supply section or the process section, and a transfer material at an intermediate or rear end of the production line. A discharge mechanism for discharging the paper or the transported paper box out of the line, and a control mechanism for receiving the failure detection signal of any of the inspection sensors and activating the discharge mechanism in a timely manner. Providing a paper detection sensor near the foreground to confirm the proximity of the material paper or paper box where the inspection sensor has detected a defect,
It is intended to solve such a problem.

[0005]

According to the present invention, when a defect occurs in a supply section or a process section, an inspection sensor provided in each section detects the defect and sends a defect detection signal to a control mechanism. The discharge mechanism is operated in a timely manner according to the transfer speed of the paper or the paper box to discharge the defective material paper or the paper box out of the line. A paper detection sensor is provided near the discharge mechanism to check for defective material paper or a defective paper box.This ensures reliable timing even when the distance between the defect detection point and the discharge mechanism is short or long. The desired defective product can be discharged.

[0006]

An embodiment will be described below with reference to the drawings.

FIG. 1 is a schematic view showing one embodiment of an automatic box making machine. The automatic box making machine is cut into an appropriate shape designed in advance and pasted at a place where a seal or the like is determined as necessary. A supply unit 1 for supplying the material paper P to be attached, and a material paper P supplied from the supply unit 1 is transported by a belt conveyor 2 while being subjected to a process such as bending or gluing and sticking at a required portion and folding. A production line 3 for forming into a paper box B of a shape, and a roller conveyor 4 in which the paper boxes B having been formed are arranged vertically.
And a carrying-out line 5 that receives the paper at the same time, transports it to the loading place while adjusting the size, and performs bending, gluing, and sticking operations on the manufacturing line 3 according to various settings. , 6c... Are provided. Above the supply section 1, an inspection sensor 7β for detecting the printing position of the barcode applied to the material paper P, the sticking position of a seal, the attachment of the wrapping material cutting blade in the wrapping box, and the supplied material paper P Inspection sensors 7γ and the like for detecting whether or not two sheets are overlapped are provided, and the process units 6a, 6b, and 6c are provided.
Are provided with inspection sensors 7a, 7b, 7c,... For detecting the bending and for detecting the gluing on the upper or lower side to check whether the process has been performed correctly. As the inspection sensor, a sensor suitable for each inspection is selected from an optical sensor, a limit sensor, and the like, and is mounted at a position and an angle suitable for the inspection.

Reference numeral 8 denotes a discharge mechanism, which is provided between the production line 3 and the discharge line 5 in this embodiment, and as shown in FIGS. 1 and 2, the rear end of the belt conveyor 2 of the production line 3 and the discharge line 5 A gap 9 of an appropriate size is provided between the leading ends of the roller conveyors 4, and an intermediate portion of the long axis 10 a is pivotally supported 11 near above the gap 9 so that the leading end of the short axis 10 b extends vertically toward the gap 9. An L-shaped push rod lever 12 is provided so as to rotate,
The other end of the long shaft 10a is connected to a rod 13a of a rotation cylinder 13, and an optical sensor or a camera-eye type paper detection sensor for confirming the proximity of paper at a position near this discharge mechanism 8
14 are provided.

Reference numeral 15 denotes a control mechanism having functions of a master unit and a slave unit. The control mechanism is connected so that each inspection sensor is managed by the slave unit, and the discharge mechanism and the paper detection sensor 14 are managed by the master unit. Not equipped with a line speed controller, a distance input unit between each inspection sensor and the paper detection sensor 14, and a distance input unit between the paper detection sensor 14 and the discharge device 8, etc., and converts the line speed and the distance to the discharge device. It has a calculation function to measure the operation timing of the. FIG.
FIG. 4 to FIG. 4 are flowcharts of the parent function and the child function. Since the failure detection is always performed, even if the failure occurs continuously, the detection signal is transmitted to the master unit as many times as the number of failures.

When the material box P is supplied by operating the automatic box making machine, the material sheet P is firstly supplied to the supply section 1 at a position where a bar code is to be printed, a sticker is attached, and a wrapping material cutting blade is attached to the wrapping box. Inspection sensor 7 to check if it overlaps with the detection band of inspection sensor 7β to detect
pass through the process sections 6a, 6b, 6c... for bending, gluing, sticking, etc.
b, 6c: Various inspection sensors 7 provided on the exit side
When no defect is found due to a, 7b, 7c,..., it is transported from the production line 3 to the unloading line 5 as a folded paper box B.
When a defect is detected by any of a, 7b, 7c,..., 7β, 7γ, as shown in FIG.
7b, 7c... Catches the defect at the points A1 to A5, and the defective paper box B1 is obtained immediately before the point K1.
At which the defective paper box B1 is detected by the paper detection sensor 14 provided in the vicinity of the discharge mechanism 8, and a discharge (defective detection) signal is transmitted to the parent machine.
The distance between K1 and K2 is subtracted by the line speed (because there is a delay in the operation of the cylinder), the cylinder 13 for rotation of the ejection mechanism 8 is operated, and the push lever 12 is rotated as shown in FIG. The tip of the short axis 10b of the pushing lever 12 pushes down the tip of the defective paper box B1 in the gap 9, and the tip of the defective paper box B1 is deviated from the line trajectory of the unloading line 5 to the roller conveyor 4. Then, the defective paper box B1 is dropped and discharged below the gap 9 by the subsequent feeding of the belt conveyor 2. The operation time of the rotating cylinder 13 varies depending on the length of the defective paper box B1 and the line speed. Since the push lever 12 immediately returns to the original position and prepares for the next operation, the other completed paper box B is fed into the carry-out line 5 as usual.

[0011]

As described above, according to the present invention, an inspection sensor for detecting a supply failure or a process failure of a material paper at an appropriate position in a supply section or a process section, and a defective paper box transferred to the rear end of the production line. A discharge mechanism for discharging the body out of the line, a control mechanism for receiving a failure detection signal from one of the inspection sensors and operating the discharge mechanism in a timely manner, and an inspection sensor near the discharge mechanism. Provided a paper detection sensor that confirms the proximity of the material paper that detected the defect, and controlled the operation of the discharge mechanism by checking the paper detection sensor. Even if the distance is short or long, the operation of the discharge mechanism can be controlled at a certain timing without malfunction, and the defective product is automatically and accurately discharged without reaching the discharge line. Cause the effect that the door can be.

[0012]

[0013]

[Brief description of the drawings]

FIG. 1 is a schematic view showing one embodiment of an automatic box making machine.

FIG. 2 is a partially enlarged view near a discharge mechanism.

FIG. 3 is a flowchart of the master unit.

FIG. 4 is a flowchart of the slave unit.

FIG. 5 is an explanatory diagram of the entire apparatus.

FIG. 6 is an operation diagram of a discharge mechanism.

[Explanation of symbols]

1 is a supply unit 2 is a belt conveyor 3 is a production line 4 is a roller conveyor 5 is a carry-out line 6a, 6b, 6c ... is a process unit 7a, 7b, 7c ... 7 ?, 7? Is an inspection sensor 9 is a gap 10a is a long axis 10b is a short axis 11 is a shaft support 12 is a push rod lever 13 is a rotating cylinder 13a is a rod 14 is a paper detection sensor 15 is a control mechanism 16 is a cylinder 17 is a push rod lever 18a , 18b is a belt conveyor for discharge

Claims (1)

(57) [Claims] 1. A production line comprising a supply section for supplying material paper cut into an appropriate shape, and a plurality of process sections for performing a process such as folding, gluing and pasting while transporting the material paper subsequent to the supply section. In an automatic box making machine having an inspection sensor for detecting a supply failure or a process failure of the material paper at an appropriate place in the supply section or the process section, and a defective paper box body transferred to the rear end of the production line out of the line. A discharge mechanism for discharging is provided.
A control mechanism for receiving the failure detection signal from any of the inspection sensors and operating the discharge mechanism in a timely manner, and in the vicinity of the discharge mechanism, in the vicinity of the material paper or paper box in which the inspection sensor has detected a defect; And a paper detection sensor for transmitting a discharge signal to the control mechanism.