JP2010082952A - Print inspection device and print inspection method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a print inspection device which can stably print information on a flexible accommodation part and can examine the printing state with high accuracy and at low cost, and to provide the print inspection method. <P>SOLUTION: The print inspection device 1 includes a conveyance part 3 for conveying the flexible accommodation part 4, a print part 5 for printing the information on the flexible accommodation part, and an inspection part for examining the printing state of the flexible accommodation part on which the print part has been printed, a guide part 7 to which the flexible accommodation part is pressed, a press part 8 in a guide part direction capable of moving in the direction toward the guide part, and a press part 9 in conveyance direction capable of moving in the direction toward the conveyance part. The inspection part has an image information acquisition part 11 for acquiring the printing state of the flexible accommodation part on which the printing part has been printed. The surface of the guide part to which the flexible accommodation part is pressed is a plane. The guide part has an orifice 7a through which the image information acquisition part acquires the image information of the printing state after the printing part makes a print in the flexible accommodation part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to, for example, a print inspection apparatus and a print inspection method for printing on the surface of a flexible container or the like whose shape of the bag surface is deformable and inspecting the printed state.

Conventionally, as the flexible container for filling flour or the like inside, a bag-like large bag made of, for example, kraft paper, whose shape can be freely deformed, has been used.
When such a large bag is filled with specific flour or the like, various information such as the date of manufacture, the expiration date, and the serial number is printed on the surface of the large bag. Specifically, a large bag filled with flour or the like is conveyed to a position where a printing device is located by a belt conveyor or the like, and various information is printed on the surface of the large bag by a printing device such as an ink jet printer. It was.
However, the direction of the large bag conveyed by the belt conveyor is not necessarily constant, and is directed in various directions. For this reason, if information is to be printed on the surface of the large bag in this state, printing may not be possible, or printing may be deformed or unclear.
Accordingly, there has been a proposal that the direction of the large bag conveyed by the belt conveyor is corrected and the printed portion is flattened by a roller before the ink jet printer performs printing (for example, Patent Document 1).
Japanese Utility Model Publication No. 7-42335 (summary, etc.)

However, since the ink jet printer of Patent Document 1 corrects the orientation of the large bag with only the guide, the orientation of the large bag cannot be corrected with high accuracy, and there is a problem that printing becomes unstable.
Further, in Patent Document 1, since the roller is pressed only on the printing portion of the large bag, the other portion of the large bag is deformed by the pressing force of the roller, and as a result, the shape of the printing surface becomes unstable. .
Furthermore, in recent years, since it is necessary to print on the surface in detail and accurately, it is necessary to inspect whether or not it is clearly printed, because it is easy to see information on quality indications such as flour in large bags. .
In order to provide an inspection apparatus that performs such an inspection in a printing apparatus such as that disclosed in Patent Document 1, the inspection apparatus is arranged side by side with the printing apparatus, that is, on the downstream side of the belt conveyor. However, in order for the inspection apparatus provided in this way to accurately inspect the printing state of the printing apparatus, it is necessary for the inspection apparatus to accurately grasp the printing position. There was also a problem of increased costs.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a print inspection apparatus and a print inspection method that can stably print information in a flexible container and can inspect the print state at a low cost.

  The subject includes a conveyance unit that conveys a flexible accommodation unit that accommodates an object, a printing unit that prints information on the flexible accommodation unit, and printing of the flexible accommodation unit printed by the printing unit. A print inspection apparatus having a test section for inspecting a state, wherein the guide section is pressed against at least a part of the surface of the flexible storage section, and the flexible storage section is pressed against the guide section. Therefore, the guide portion direction pressing portion that is movable in the direction toward the guide portion and the flexible accommodating portion are pressed toward the transport portion, and therefore, the movable portion is movable in the direction toward the transport portion. A conveyance unit direction pressing unit, and the inspection unit includes an image information acquisition unit that acquires, as image information, a printing state of the flexible storage unit printed by the printing unit, The flexible accommodating portion of the guide portion is pressed against The surface of the guide portion is a flat surface, and the guide portion has an opening through which the print portion prints on the flexible storage portion, and then the image information acquisition portion acquires image information in the print state. It is solved by a print inspection apparatus characterized by having

According to the said structure, the guide part which can be moved to the direction toward a guide part in order to press a part of surface of a flexible accommodating part and the flexible accommodating part against a guide part. In order to press the part-direction pressing part and the flexible accommodation part toward the transport part, there is a transport part direction pressing part that is movable in the direction toward the transport part.
Further, the surface of the guide portion on the side where the flexible housing portion is pressed is a flat surface.
The flexible accommodating portion such as the bag is pressed against the guide portion by moving the guide portion direction pressing portion toward the guide portion.
Further, the bag or the like is pressed against the transport unit when the transport unit direction pressing unit moves in a direction toward the transport unit.
At this time, for example, both sides of the bag or the like are pressed by the guide portion and the guide portion direction pressing portion. Further, for example, the upper side and the lower side of the bag or the like are pressed by the conveyance unit direction pressing unit and the conveyance unit.

Accordingly, even if the bag or the like is flexible, its deformation is regulated by these guides and the like, and at least the guide portion, the guide portion direction pressing portion, the transport portion, and the transport portion direction pressing portion are formed. .
In particular, since the surface of the guide portion on the side against which the bag or the like is pressed is a flat surface, the surface of the bag or the like corresponding to the surface is a flat surface.
Moreover, in the said structure, the guide part has an opening part for a printing part to print on flexible accommodating parts, such as a bag, and an image information acquisition part acquires the image information of a printing state after that. .
That is, the guide portion has an opening, and the printing portion prints on a bag or the like through the opening. The printed portion of the bag or the like is flat by the guide portion, and the printing is performed on the surface of the flat bag or the like, so that clear and accurate printing is guaranteed, and the flexible storage portion such as the bag or the like. It is possible to print information stably.

Further, in the above configuration, the printing apparatus includes an inspection unit that inspects the printing state of the flexible storage unit printed by the printing unit, and the inspection unit displays the printing state of the flexible storage unit printed by the printing unit. An image information acquisition unit that acquires image information is included.
And this image information acquisition part is the structure which acquires the image information of a printing state via the opening part of a guide part.
That is, in the said structure, it becomes the structure which can arrange | position to the same opening part the position which prints, and the position which is an image information acquisition part, for example, a camera acquires the image information of a printing state.
For this reason, in the said structure, since installation costs, such as adjustment at the time of arrange | positioning a camera etc. in the position different from a printing part conventionally, are unnecessary, it is low-cost and can arrange | position a test | inspection part accurately. it can.

  In addition, the present invention is preferably a print inspection apparatus including a print unit drive unit for moving the print unit along the opening.

According to the said structure, since it has the printing part drive part for moving a printing part along an opening part, the printing part becomes a structure which prints, moving itself.
Therefore, in the above configuration, it is not necessary for the printing unit to perform printing in accordance with the moving speed of the flexible storage unit such as the bag on the transport unit as in the conventional case, and it is possible to prevent printing from becoming unstable. can do.

  In addition, the present invention preferably includes a movement inspection unit that prevents movement of the flexible accommodation unit in a movement direction of the flexible accommodation unit conveyed by the conveyance unit. It is.

  According to the above-described configuration, the flexible storage unit such as a bag is transported because the flexible storage unit has a movement blocking unit that blocks movement of the flexible storage unit in the movement direction of the flexible storage unit transported by the transport unit. The movement by the unit is blocked by the movement blocking unit, and the movement is stopped at a specific position. Thereby, a flexible accommodating part can be positioned with sufficient precision.

  Further, the present invention preferably includes a notation information acquisition unit that acquires notation information described as image information other than a print area printed by the printing unit of the flexible storage portion. Device.

  According to the above-described configuration, the flexible storage unit has the written information acquisition unit that acquires the written information other than the print area printed by the printing unit as image information. It can be confirmed whether or not the object to be filled is appropriate.

  Also, the present invention is preferably the print inspection apparatus, wherein the conveyance unit direction pressing unit is arranged corresponding to the position of the opening.

  According to the said structure, since the conveyance part direction pressing part is arrange | positioned corresponding to the position of an opening part, the printing area | region which a printing part prints among flexible accommodation parts can be formed more planarly. it can.

  In addition, the present invention is preferably a print inspection apparatus including a detection unit for grasping a position of the flexible storage unit in the transport unit.

  According to the said structure, since it has a detection part for grasping | ascertaining the position of the flexible accommodating part in a conveyance part, the position of the flexible accommodating part on a conveyance part can be grasped | ascertained correctly, and printing and a test | inspection are carried out correctly. can do.

  Also, the present invention is preferably the print inspection apparatus characterized in that the size of the opening corresponds to the size of the area to be printed in the flexible housing.

  According to the above configuration, since the size of the opening corresponds to the size of the area to be printed in the flexible container, the size of the opening can be set to the minimum necessary size. That is, as a result, the size of the opening of the guide portion is not increased more than necessary, so that the area where the guide portion abuts on the flexible accommodating portion is not reduced more than necessary. Therefore, it becomes a guide part which can hold | maintain the shape of a flexible accommodating part more easily.

  In addition, the present invention preferably includes an illumination unit that illuminates the image information acquired by the image information acquisition unit, and the illumination unit illuminates with the same color as the surface of the flexible storage unit. A print inspection apparatus characterized by being a system.

  According to the above configuration, the illumination unit illuminates the image information acquired by the image information acquisition unit, and the illumination unit illuminates the same color as the color of the surface of the flexible storage unit. The information can be easily identified, and the inspection accuracy of the inspection unit is improved.

  Furthermore, the subject is a conveyance unit that conveys a flexible accommodation unit that accommodates an object, a printing unit that prints information on the flexible accommodation unit, and the flexible accommodation unit that is printed by the printing unit. An inspection unit that inspects the printing state of the flexible storage unit, and the movement blocking unit prevents the movement of the flexible storage unit in the movement direction of the flexible storage unit that is transported by the transport unit. The guide portion direction pressing portion, which is movable in a direction toward the guide portion to which at least a part of the surface of the sex accommodating portion is pressed, moves, so that the flexible storage portion becomes a plane of the guide portion. The printing unit is pressed against the transporting part, the transporting part direction pressing part that is movable in the direction toward the transporting part is moved, and the flexible housing part is pressed toward the transporting part. Through the opening formed in the guide portion. The image information acquisition unit of the inspection unit acquires the print state of the flexible storage unit printed by the printing unit as image information through the opening. This is solved by the print inspection method.

  The present invention has an advantage that it is possible to provide a print inspection apparatus and a print inspection method capable of stably printing information in the flexible housing portion and accurately inspecting the print state at low cost.

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
The embodiments described below are preferred specific examples of the present invention, and thus various technically preferable limitations are given. However, the scope of the present invention is particularly limited in the following description. Unless otherwise stated, the present invention is not limited to these embodiments.

FIG. 1 is a schematic view showing an application example of, for example, a large bag print inspection apparatus 1 which is an embodiment of a print inspection apparatus of the present invention.
As shown in FIG. 1, the large bag printing inspection apparatus 1 is arranged in a line 2 provided in a factory. The line 2 includes, for example, a belt conveyor 3 that is a large number of conveyance units. In addition, the belt conveyor 3 is configured to convey, for example, a large bag 4 that is a flexible container.
The large bag 4 has a shape as shown in FIG. 2, for example, and is formed from a material that can be easily deformed, such as kraft paper. Further, in the large bag 4, for example, powder such as flour is stored. FIG. 2 is a schematic perspective view showing a large bag.
Therefore, the large bag 4 can be easily deformed because the bag itself can be easily deformed even when flour or the like is stored therein. FIG. 3 is a schematic development view of the large bag 4 shown in FIG.
As shown in FIG. 3, the large bag 4 has a large bag specific symbol such as “442” as written information on the flat surface portion 4 a, the bottom surface portion 4 b, and the side surface portion 4 c. The symbol such as “442” is a symbol for specifying the type of flour or the like to be filled in the large bag 4.
Therefore, the operator can easily identify the contents by visually recognizing the symbol “442” on the large bag 4.

  Further, on the side surface portion 4c side of the large bag 4, a printing region 4d on which symbols and the like are printed is formed by, for example, an ink jet printer 5 which is a printing portion. Therefore, since no other symbols are described in the print area 4d, the printed symbols and the like do not overlap with other symbols and the symbols can be easily identified.

By the way, the large bag 4 as shown in FIGS. 2 and 3 is conveyed by the belt conveyor 3 in the line 2 of FIG. 1 in the direction of arrow A in FIG. The inspection belt conveyor 3 is reached, and the necessary information is printed on the printing area 4d of the large bag 4 shown in FIG. This information includes, for example, the date of manufacture, the expiration date, and the serial number of the flour or the like filled in the large bag 4, and is, for example, a combination of numbers.
The large bag printing inspection apparatus 1 is configured to inspect the printing state of a combination of numbers printed by the inkjet printer 5.

Hereinafter, the large bag printing inspection apparatus 1 will be described.
4 is a schematic plan view of the large bag print inspection apparatus 1 shown in FIG. 1 as viewed from the plane side, and FIG. 5 is a schematic side view showing the main part of the large bag print inspection apparatus 1 from the direction of arrow B in FIG. .
As shown in FIG. 4, the large bag printing inspection apparatus 1 includes, for example, a first cylinder 6 that is a movement blocking unit that blocks the movement of the large bag 4 in the moving direction of the belt conveyor 3.
The first cylinder 6 is configured to be movable in a direction away from the surface of the belt conveyor 3 or a direction close to the surface of the belt conveyor 3 as indicated by an arrow C direction in FIG. The cylinder 6 is configured to come into contact with the large bag 4 conveyed by the belt conveyor 3 by moving in a direction close to the belt conveyor 3.
Thereby, the large bag 4 is positioned with high precision by the first cylinder 6.

Moreover, as shown in FIG.4 and FIG.5, the large bag printing inspection apparatus 1 has the guide part 7 formed along the moving direction of the belt conveyor 3. As shown in FIG.
As shown in FIGS. 4 and 5, the guide portion 7 is formed of a plate-like member that is long in the moving direction of the belt conveyor 3. Further, it is fixedly disposed along the belt conveyor 3.
A large bag 4 indicated by a broken line in FIG. 4 is pressed against the belt conveyor 3 side of the guide portion 7, and the surface of the guide portion 7 on which the large bag 4 is pressed is as shown in FIG. , Formed in a plane.
The guide portion 7 has an opening 7a as shown in FIG. The opening 7a will be described later.

On the other hand, as shown in FIG. 4, for example, a second cylinder 8 which is a guide portion direction pressing portion is disposed on the opposite side of the guide portion 7 with the belt conveyor 3 interposed therebetween.
The second cylinder 8 is formed of a plate-like member that is long in the moving direction of the belt conveyor 3 so as to face the guide portion 7. However, unlike the guide portion 7, the second cylinder 8 is not fixed and is movable in the direction toward the guide portion 7 as shown by the arrow D direction in FIG.
Therefore, as shown in FIG. 4, when the movement of the large bag 4 is stopped by the first cylinder 6, and then the second cylinder 8 moves in the direction approaching the guide portion 7, the large bag 4 The cylinder 8 is configured to be pressed against the guide portion 7. In addition, the surface which contact | abuts with the large bag 4 of this 2nd cylinder 8 is a plane.

Moreover, as shown in FIG.4 and FIG.5, the 3rd cylinder 9 which is a conveyance part direction pressing part is provided. The third cylinder 9 is arranged in a direction along the moving direction of the belt conveyor 3 and is configured to be movable in a direction close to or away from the belt conveyor 3 of FIG.
Therefore, when the large bag 4 is arrange | positioned like FIG. 4, the large bag 4 will be pressed toward the belt conveyor 3 from upper direction. The lower surface of the third cylinder 9 shown in FIG. 5, that is, the surface in contact with the large bag 4 is a flat surface.

  In this way, the large bag 4 conveyed by the belt conveyor 3 and reaching the print inspection belt conveyor 3 is stopped by the first cylinder 6, and then the side surface is pressed by the second cylinder 8. The other side surface is pressed against the guide portion 7. The plane side of the large bag 4 is pressed by the third cylinder 9, and the bottom side is pressed by the third cylinder 9 against the surface of the belt conveyor 3. Accordingly, since the large bag 4 is made of a deformable material itself and the filling is a fluid material such as flour, the shape of the large bag 4 is at least the second cylinder 8 and the guide. The shape is formed by the portion 7 and the third cylinder 9. In particular, since the large bag 4 on the guide portion 7 side is pressed against the guide portion 7 by the second cylinder 8, the shape thereof is a plane that follows the plane that is the surface of the guide portion 7.

Further, as shown in FIG. 5, the guide portion 7 has an opening 7a. The surface of the large bag 4 exposed through the opening 7a is a flat surface as described above.
On the other hand, the ink jet printer 5 is arranged corresponding to the opening 7a, and a slider device 10, for example, is formed as a printing unit driving unit for moving the ink jet printer 5 along the opening 7a. ing.
That is, the ink jet printer 5 is configured to eject ink while moving by the slider device 10 and perform printing.

Further, the size of the opening 7a is the same as that of the printing area 4d of the large bag 4 shown in FIG. Therefore, the inkjet printer 5 is configured to be able to print on the print region 4d of the large bag 4 by printing through the opening 7a while moving by the slider device 10.
Further, when printing by the ink jet printer 5, the printing area 4d of the large bag 4 is pressed against the guide portion 7 and is substantially flat, so that the printing can be performed accurately and clearly. ing.

  In the present embodiment, the size of the opening 7 a is the same as the size of the printing area 4 d of the large bag 4, and is the minimum necessary size, so that the guide portion 7 contacts the large bag 4. The area is secured as much as possible. Therefore, the large bag 4 is more easily maintained in a planar shape.

  In the present embodiment, as shown in FIG. 5, the third cylinder 9 is disposed at a position corresponding to the opening 7 a of the guide portion 7 (close position). Therefore, the shape formed by the second cylinder 8, the third cylinder 9, and the guide portion 7 is more accurately maintained at the opening 7a, and the accuracy of the planar shape of the large bag 4 at the opening 7a is further improved. become.

  Further, in the present embodiment, as described above, the inkjet printer 5 is configured to perform printing while being moved by the slider device 10, and the inkjet printer performs printing in accordance with the movement speed of the large bag as in the past. Since it is not configured, it is possible to prevent printing from becoming unstable.

As described above, in the present embodiment, since the printing area 4d of the large bag 4 is made flat and the inkjet printer 5 prints on that portion, the printed portion is prevented from becoming unclear. Yes. However, in recent years, numbers indicating the date of manufacture and the like printed on the printing area 4d of the large bag 4 have extremely important meanings. In the present embodiment, these printings have been performed accurately and clearly. There is a mechanism for inspecting.
For this reason, as shown in FIG. 4, for example, a first camera 11, which is an image information imaging unit that images the printing state of the printing region 4 d of the large bag 4 by the inkjet printer 5, is arranged. As shown in FIG. 4, the first camera 11 is fixedly arranged at a position where the print region 4 d of the large bag 4 can be imaged through the opening 7 a of the guide portion 7.

  On the other hand, a camera for inspecting a print portion is conventionally arranged on the downstream side of the inkjet printer in order to take an image of the state after the printing process of the inkjet printer, that is, at a position different from the inkjet printer. Therefore, a large cost is required for adjustment for accurately imaging the print area. In this regard, in the present embodiment, since the first camera 11 images the print area 4d at the same position where the ink jet printer 5 performs printing, the image can be captured with extremely high accuracy and the cost of adjustment and the like is not required. Yes. As described above, the opening 7 a of the guide portion 7 is an opening for printing by the inkjet printer 5, and at the same time, functions as an imaging opening for the first camera 11.

In the present embodiment, as shown in FIG. 4, for example, illuminations 15 and 15 that are illumination units are arranged on both sides of the first camera 11. The illumination 15 is, for example, red illumination that is the same system as the kraft paper of the large bag 4. By irradiating illumination of the same system as the color of the large bag 4 to be printed in this way, it becomes easy to identify the printed portion after being imaged by the first camera 11, and the inspection can be performed with high accuracy.
It is desirable that the color used in the illumination 15 is appropriately selected depending on the color of the large bag 4.

  As shown in FIGS. 4 and 5, for example, the large bag detection sensors 12 and 12, which are detection units for grasping the position of the large bag 4, are included in the large bag printing inspection apparatus 1 of the present embodiment. Two are arranged in front of the first cylinder 6 in the moving direction. Therefore, it can be confirmed by the large bag detection sensor 12 that the large bag 4 is disposed at a predetermined position.

  As shown in FIGS. 4 and 5, for example, a large bag discharge detection sensor 13, which is a detection unit, is disposed at the tip of the first cylinder 6 in the moving direction of the belt conveyor 3. Thereby, it can be confirmed that the large bag 4 that has finished printing or the like has been reliably discharged.

  As shown in FIGS. 4 and 5, on the upstream side of the belt conveyor 3, for example, congestion detection sensors 14 and 14 that are detection units are arranged. Accordingly, it is possible to quickly detect that the large bag 4 conveyed from the upstream side of the line 2 in FIG. 1 is congested.

Further, as shown in FIGS. 4 and 5, for example, a second camera 16 that is a notation information acquisition unit is arranged in the large bag printing inspection apparatus 1 according to the present embodiment.
The second camera 16 is for imaging a large bag specific symbol such as “442” which is the notation information of FIG. By imaging this symbol, it can be determined whether or not the bag 4 is to be transported to the line 2, and when the large bag 4 that should not be transported in the line 2 is transported, the fact is quickly discovered. It has a configuration that can.

  Further, as shown in FIG. 5, the large bag print inspection apparatus 1 is provided with a print inspection display 17, a print adjustment display 18, and the like.

The above is the main configuration of the large bag printing inspection apparatus 1 according to the present embodiment. The operation of the apparatus will be described below. FIG. 6 is a schematic block diagram of the large bag print inspection apparatus 1, and FIGS. 7 and 8 are schematic flowcharts showing operations of the large bag print inspection apparatus 1. As shown in FIG. 6, the large bag printing apparatus 1 includes a control unit 20, each storage unit, and each program. These include a CPU (Central Processing Unit), a RAM (Random Access Memory), and a ROM (Read Only Memory). Etc. In addition to processing predetermined programs, the CPU controls the ROM and the like. The ROM stores various programs and various information.
The RAM has a function as an area for comparing the contents of the memory during the program processing and for executing the program.

The operation of the large bag printing inspection apparatus 1 will be described along the schematic flowchart of FIG. 7 and the like, and at the same time, the block diagram of FIG. 6 will be described.
First, when the line 2 of FIG. 1 is operated and the belt conveyor 3 is operated, it is determined whether or not the large bag detection sensor 12 has detected the large bag 4 as shown in ST1 of FIG. This indicates the large bag detection sensor 12 shown in FIGS.
When the large bag detection sensor 12 detects the large bag 4, it means that the large bag 4 has been transported to the position shown in FIG. At this time, the first cylinder 6 is disposed not at the position shown in FIG. 5 but at a position lowered downward. That is, the large bag 4 comes into contact with the first cylinder 6 to stop its movement, and its position is detected by the large bag detection sensor 12.

When the large bag detection sensor 12 detects the large bag 4 in ST1, the print inspection belt conveyor 3 stops in ST2. The print inspection belt conveyor 3 to be stopped is the belt conveyor 3 of the portion where the large bag printing inspection apparatus 1 of FIG. 1 is arranged as described above.
Specifically, the print inspection belt conveyor drive unit 21 of FIG. 6 is configured to stop driving.

Next, as shown in ST3, the first cylinder 6 that stops the movement of the large bag 4 is moved upward and retracted to the position shown in FIG. Specifically, this is moved by the first cylinder driving unit 22 including the air cylinder of FIG.
Next, as shown in ST4, the second cylinder 8 in FIG. 4 moves toward the large bag 4 and presses the large bag 4 against the guide portion 7 in FIG.
Thereby, as described above, the side surface side of the large bag 4 pressed against the guide portion 7 becomes a plane similarly to the surface of the guide portion 7.
Specifically, the second cylinder 8 is moved by the second cylinder driving unit 23 including the air cylinder of FIG.

Next, as shown in ST5, the third cylinder 9 in FIGS. 4 and 5 starts to move downward from the position in FIG. 5 and moves so as to press the large bag 4 against the belt conveyor 3 side.
Specifically, the third cylinder 9 is moved by a third cylinder driving unit 24 including an air cylinder of FIG.
Due to ST4 and ST5, the large bag 4 is pressed against the guide portion 7 as described above, and the printing region 4d of the large bag 4 exposed to the opening 7a is flat like the surface of the guide portion 7 on the large bag 4 side. It becomes.

In this state, the process proceeds to ST6 and ST7. In ST6, the slider device 10 shown in FIG. 4 is operated by the slider drive unit 25 including the motor shown in FIG. 6, and the longitudinal direction of the opening 7a of the guide part 7 (the length of the printing area 4d on the side surface of the large bag 4 shown in FIG. 3). 4) is moved along the direction). At this time, as shown in ST7, a print start trigger signal is input to the inkjet printer 5.
Next, as shown in ST8, when the inkjet printer 5 moves and reaches the end opposite to the opening 7a of FIG. 5, the slider device 10 stops the inkjet printer 5. As a result, the ink jet printer 5 ends the printing of numbers and the like necessary for the printing region 4d of FIG.
At this time, since the printing region 4d of the large bag 4 exposed in a planar state from the opening 7a is in a planar state, printing by the inkjet printer 5 is performed stably and clearly. Further, since the ink jet printer 5 performs printing while being moved by the slider device 10, it is possible to perform printing more stably than in the conventional case where printing is performed in accordance with the movement of the large bag 4.

Next, the process proceeds to ST9. Steps ST9 and after are steps for inspecting the printing state of numbers and the like printed by the inkjet printer 5 in ST8 and the like.
First, in ST9, the lights 15 and 15 in FIG. 4 are caused to emit light, and the first camera 11 captures an image of the numbers printed on the print region 4d of the large bag 4. At this time, since the ink jet printer 5 is positioned on the opposite side of the opening 7 a by the slider device 10, the ink jet printer 5 does not get in the way when the first camera 11 takes an image.
Specifically, the illumination 15 is emitted by the illumination operation unit 26 in FIG. 6, and the first camera 11 operates at the same timing. The color of the illumination 15 at this time is the same system color as the large bag 4, for example, red as described above. This makes it possible to more easily discriminate the printed numbers and the like in the inspection process described later.
The image information captured in this way is stored in the captured image storage unit 27 in FIG.
And since the 1st camera 11 images the printing state through the same opening part 7a as the opening part 7a which the inkjet printer 5 printed, it can adjust a printing position and an imaging position easily, etc., and it is very cost-effective. Can be reduced. That is, the first camera 11 only needs to be adjusted once according to the opening 7a of the guide portion 7, so that the adjustment can be performed very easily. In this regard, conventionally, since the cameras are arranged at different positions on the downstream side of the belt conveyor of the ink jet printer, this adjustment is difficult and costly.

Next, the process proceeds to ST10. In ST10, the captured image preprocessing program 28 of FIG. 6 is operated, and the image stored in the captured image storage unit 27 is referred to with reference to the data of the captured image preprocessing reference data storage unit 29 of FIG. Pre-process information with images.
That is, for example, by using the data in the captured image preprocessing reference data storage unit 29 that is black and white binarization processing data or gray density processing data, the number or the like that appears in the captured image is a large bag that is the background. 4 is divided from the image of the fabric, and binarization is performed.
Next, the process proceeds to ST11. In ST11, the character recognition verification test program 30 in FIG. 6 operates, and the character recognition verification test is performed by referring to the data in the reference data storage unit 31 for character recognition verification test in FIG. 6 based on the image information preprocessed in ST10. The result is stored in the character recognition collation inspection result storage unit 32 of FIG.
Accordingly, it is possible to determine whether or not the characters and the like in the printing region 4d of the large bag 4 printed by the inkjet printer 5 in ST8 and the like are clearly and stably printed.
That is, in recent years, information such as the date of production of wheat flour and the expiration date is extremely important, and it is problematic that the information is unclear on the large bag 4. In this respect, in the present embodiment, not only the configuration for clear and stabilizing the printing by the ink jet printer 5 as described above, but also the configuration for inspecting the printing state after the fact, such information can be obtained. The information such as numbers is surely displayed on the large bag 4 clearly and stably.

Next, in ST12, the ink jet printer 5 is returned to the position before the start of printing by the slider device 10. In ST13 and ST14, the second cylinder 8 and the third cylinder 9 also move in a direction away from the large bag 4, respectively.
Then, in ST15, the print inspection belt conveyor drive unit 21 shown in FIG. 6 operates, the print inspection belt conveyor 3 is restarted, and the print inspection belt conveyor 3 conveys the large bag 4 in the direction of arrow A in FIG. Start processing.

  Next, the process proceeds to ST16. In ST16 and the subsequent steps, it is a step of confirming whether the large bag 4 conveyed in the line 2 in FIG. 1 is the large bag 4 required in the line 2 or not. That is, first, in ST16, when the large bag discharge detection sensor 13 in FIG. 4 confirms the presence of the large bag 4, the second camera 16 in FIGS. 4 and 5 is shown on the plane side of the large bag 4 in ST17. A large bag specific symbol (for example, “442” indicating the specific flour or the like in FIG. 3) is imaged. And the image is memorize | stored in the reference data storage part 33 for large bag specific symbol judgment of FIG.

Next, proceeding to ST18, the large bag specific symbol determination program 34 is operated, and based on the image stored in ST17, data in the large bag specific symbol determination reference data storage unit 33, for example, "442" is referred to, and the large bag 4 The suitability of the specific symbol (for example, whether or not the number of the image is “442”) is determined, and the result is stored in the large bag specific symbol determination result storage unit 35 of FIG.
Accordingly, it is possible to prevent the occurrence of a situation in which the large bag 4 that should not be used in the line 2 of FIG. It can be configured.

  Next, in ST19, the first cylinder 6 is lowered, and the processes after ST1 are repeated.

  The present invention is not limited to the embodiments described above. In the present embodiment, the first cylinder 6 is moved upward in ST3. However, the present invention is not limited to this, and the first cylinder 6 may not be moved upward until printing is completed. In this case, the shape of the large bag 4 can be more easily maintained, the printing region 4d can be made flat with higher accuracy, and the printing becomes more stable.

It is the schematic which shows the application example of the large bag printing inspection apparatus which is embodiment of the printing inspection apparatus of this invention. It is a schematic perspective view which shows a large bag. FIG. 3 is a schematic development view of the large bag shown in FIG. 2. It is the schematic plan view which looked at the large bag printing inspection apparatus of FIG. 1 from the plane side. It is a schematic side view which shows the principal part of a large bag printing inspection apparatus from the arrow B direction of FIG. It is a schematic block diagram of a large bag printing inspection apparatus. It is a schematic flowchart which shows operation | movement etc. of a large bag printing inspection apparatus. It is a schematic flowchart which shows operation | movement etc. of a large bag printing inspection apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Large bag printing inspection apparatus, 2 ... Line, 3 ... Belt conveyor, 4 ... Large bag, 4a ... Plane part, 4b ... Bottom part, 4c ... Side part, 4d ... Printing area, 5 ... Inkjet printer, 6 ... First cylinder (movement blocking part), 7 ... Guide part, 7a ... Opening part, 8 ... Second cylinder ( Guide unit direction pressing unit), 9 ... third cylinder (conveying unit direction pressing unit), 10 ... slider device (printing unit drive unit), 11 ... first camera (image information) Acquisition unit), 12 ... large bag detection sensor (detection unit), 13 ... large bag discharge detection sensor, 14 ... traffic jam detection sensor, 15 ... illumination (illumination unit), 16 ... second Camera (notation information acquisition unit), 17 ... display for print inspection, 18 ... print adjustment display Play, 20 ... control unit, 21 ... belt conveyor drive unit for print inspection, 22 ... first cylinder drive unit, 23 ... second cylinder drive unit, 24 ... third Cylinder drive unit, 25 ... slider drive unit, 26 ... illumination operation unit, 27 ... captured image storage unit, 28 ... captured image pre-processing program, 29 ... captured image pre-processing Reference data storage unit, 30... Character recognition verification test program, 31... Character recognition verification test reference data storage unit, 32... Character recognition verification test result storage unit, 33. Reference data storage unit 34... Large bag specific symbol determination program 35. Large bag specific symbol determination result storage unit

Claims (9)

A transport section for transporting a flexible housing section for housing an object;
A printing unit for printing information on the flexible housing unit;
An inspection unit that inspects the printing state of the flexible container printed by the printing unit,
A guide portion against which at least a part of the surface of the flexible accommodating portion is pressed;
In order to press the flexible housing portion against the guide portion, a guide portion direction pressing portion that is movable in a direction toward the guide portion; and
In order to press the flexible housing portion toward the transport portion, the transport portion direction pressing portion is movable in a direction toward the transport portion, and
The inspection unit includes an image information acquisition unit that acquires, as image information, a printing state of the flexible storage unit printed by the printing unit,
The surface of the guide portion on the side to which the flexible housing portion is pressed is a flat surface, and the guide portion prints the flexible housing portion after the printing unit prints the image information. A printing inspection apparatus, wherein the portion has an opening for acquiring image information of the printing state.   The printing inspection apparatus according to claim 1, further comprising a printing unit driving unit that moves the printing unit along the opening.   3. The print inspection according to claim 1, further comprising a movement blocking unit that blocks movement of the flexible storage unit in a movement direction of the flexible storage unit that is transported by the transport unit. apparatus.   4. A notation information acquisition unit for acquiring notation information indicated as a part of image information other than a print area to be printed by the printing unit of the flexible accommodation unit. The printing inspection device described.   The print inspection apparatus according to claim 1, wherein the conveyance unit direction pressing unit is disposed corresponding to a position of the opening.   The print inspection apparatus according to claim 1, further comprising a detection unit configured to grasp a position of the flexible storage unit in the transport unit.   The print inspection apparatus according to claim 1, wherein a size of the opening corresponds to a size of a region to be printed in the flexible storage portion.   The illumination unit that illuminates the image information acquired by the image information acquisition unit, and the illumination unit illuminates the same color as the color of the surface of the flexible storage unit. The print inspection apparatus according to claim 1. A transport section for transporting a flexible housing section for housing an object;
A printing unit for printing information on the flexible housing unit;
An inspection unit that inspects the printing state of the flexible container printed by the printing unit,
In the movement direction of the flexible accommodation unit conveyed by the conveyance unit, the movement prevention unit prevents the movement of the flexible accommodation unit,
The guide portion direction pressing portion that is movable in a direction toward the guide portion to which at least a part of the surface of the flexible storage portion is pressed moves, and the flexible storage portion is moved to the guide portion. Press against the flat part,
The transport unit direction pressing unit that is movable in the direction toward the transport unit moves, and presses the flexible storage unit toward the transport unit,
The printing portion prints on the flexible accommodation portion through an opening formed in the guide portion,
Thereafter, the image information acquisition unit of the inspection unit acquires the printing state of the flexible storage unit printed by the printing unit as image information through the opening.

Images