JP2015145264A - Sealed body flap inspection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sealed body flap inspection device that inspects an adhesion state of sealing of a sealed body, such as an envelope, by a flap and that is improved in operation efficiency by eliminating the need to adjust a carrier mechanism even for different thickness of the sealed body.SOLUTION: A belt conveyor part such that a conveyor belt 24 in a predetermined array freely changes in suspension style according to the thickness of a sealed body presses a conveyor belt 24 which conveys the sealed body with its glued flap side up by a predetermined number of conveyor belt rollers 25-27 capable of moving up and down according to the thickness of the sealed body. An upper surface position of the sealed body conveyed on the belt conveyor part is restricted by a press movable block 31 and a press roller 32 which constitute an upper surface restriction part, and a flap adhesion state of the sealed body is inspected by a light emission part 33 (light reception part) and an air blow opening 34 of an air jet mechanism that constitute flap inspection means.

Description

  The present invention relates to a sealing body flap inspection apparatus that inspects the adhesive state of sealing by a flap in a sealing body such as an envelope.

  2. Description of the Related Art In recent years, with the advancement of functions of printing presses, individual contents can be printed on a large number of items, and the production of a sealed body that encloses and seals a sealed object is automated. In such automation, when the sealed object is sealed, the flap of the sealed body is folded and bonded and sealed to inspect whether or not the sealed body is securely sealed. Since the thickness is also different, it is necessary to adjust the thickness of the transport mechanism each time according to the thickness of the sealing body, and it is desired that such adjustment is unnecessary.

  Conventionally, various techniques for performing a flap inspection of a sealed body are known. For example, in Patent Document 1, a sealed letter conveying means encloses and seals the contents in an envelope to convey the sealed letter, and the sealing failure inspecting means having an engagement member that engages with the flap of the sealed letter is the same as the conveying direction of the sealed letter. A configuration is disclosed in which unsealed seals are inspected and detected by engaging the flaps of the unsealed sealed letter and the engaging member among the sealed letters to be conveyed.

  Further, Patent Document 2 discloses a configuration in which a sealing portion (flap) of an envelope is bent in an arc shape by a rotating drum to raise a flap with poor pasting, and the height is detected by a sensor to judge whether pasting is good or bad. Has been. Furthermore, in Patent Document 3, an envelope to be conveyed is taken onto a mounting table, air 22 is blown onto a glued flap of the envelope, and a portion of the flap that is not glued is forcibly lifted up and twisted. A configuration is disclosed in which an image of the rise is picked up by a CCD camera, the quality of the glued state of the entire flap portion is judged and sent out by a belt conveyor after inspection.

JP 2012-126446 A Japanese Patent No. 4573735 JP 2004-053302 A

  However, in the sealing inspection apparatus of Patent Document 1, it is necessary to adjust the position of the sealing failure inspection means having an engaging member each time for sealed letters with different thicknesses. In the gluing inspection method of Patent Document 2, The position of the rotating drum needs to be adjusted each time according to the thickness of the envelope. Also, in the gluing inspection apparatus of Patent Document 3, the envelope is loaded onto the mounting table and conveyed by the belt conveyor according to the thickness of the envelope. There is a problem that position adjustment is necessary each time. Moreover, in the inspection apparatus of patent document 3, the adjustment of the blowing position of the air according to the thickness of the envelope and the focus adjustment of the camera are also necessary, and it takes a long time for each position adjustment for the operator. It is not preferable.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a sealing body flap inspection device that does not require adjustment of a transport mechanism or the like even for different thicknesses of a sealing body and improves work efficiency. .

  In order to solve the above-mentioned problem, in the invention of claim 1, there is provided a sealing body flap inspection device for inspecting an adhesive state of the flap when the flap of the sealing body into which the sealing material is inserted is glued. A belt transporting section on which the glued flap side is transported to a top surface by a transporting belt in a predetermined row, and the suspension form of the transporting belt can be changed according to the thickness of the sealing body, and the sealing transported on the belt transporting section An upper surface restricting portion that restricts the upper surface position of the body, a predetermined number of conveying belt pressing portions that can be moved up and down according to the thickness of the sealing body by pushing up the conveying belt from the lower surface side of the sealing body, and the conveying belt It is set as the structure which has a flap test | inspection means which test | inspects the flap adhesion state of the sealing body controlled by the upper surface control part above.

  According to the present invention, in the belt conveyance section in which the suspension form of the conveyance belt can be freely changed according to the thickness of the sealing body, the predetermined number of conveyance belts that convey the glued flap side of the sealing body to the upper surface are set to the thickness of the sealing body. In response to this, a predetermined number of conveying belt pressing parts that can be moved up and down are pushed up from the lower surface side of the sealing body, and the upper surface regulating section regulates the upper surface position of the sealing body that is conveyed on the belt conveying section by the flap inspection means. By adopting a configuration for inspecting the flap adhesion state of the sealing body, the thickness of the sealing body is absorbed by a change in the suspension form of the conveying belt without changing the position of the flap of the sealing body, so that the sealing body is different. With respect to the thickness, adjustment of the transport mechanism or the like is not necessary, and work efficiency can be improved.

It is a schematic block diagram of the sealing body flap inspection apparatus which concerns on this invention. It is explanatory drawing of the belt conveyance part and flap test | inspection means of FIG. It is explanatory drawing of the sealing body conveyance of FIG. It is explanatory drawing of the flap test | inspection of FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration diagram of a sealing body flap inspection apparatus according to the present invention, and FIG. 2 is an explanatory diagram of the belt conveyance unit and the flap inspection means of FIG. In FIG. 1A, a sealing body supply unit 12 is disposed on the inlet side of the sealing body flap inspection apparatus 11 where the sealing body is carried in, and a transparent table 13 is provided between the sealing body supply section 12 and the apparatus 11. An imaging camera 14 such as a CCD camera is provided below the transparent table 13 as an imaging means.

  The sealing body supply unit 12 feeds the sealing body with the transport belt 12A in a state in which the sealing material is inserted and the flap side of the sealing body is folded and glued, with the flap side as an upper surface and the flap positioned on one end side in the transport direction. Although such a sealed body is not shown, the address is visible on the lower surface, and when the address portion is positioned on the transparent table 13, the address is confirmed by imaging the address with the imaging camera 14. By doing in this way, even if the thickness of the sealing body is different, it is not necessary to adjust the focus of the imaging camera 14 once for each thickness.

  Further, a stacker 15 is disposed on the outlet side of the sealing body flap inspection apparatus 11 where the sealing body is discharged. The stacker 15 includes a stacker transport belt 15A, and sequentially receives the sealing bodies sent out from the sealing body flap inspection apparatus 11.

  In the sealing body flap inspection device 11, a conveyor belt (for example, a round belt) 24 is suspended from a belt suspension inlet roller 21, a belt suspension outlet roller 22, and a tension roller 23. The tension roller 23 can move up and down, and the suspension form of the conveyor belt 24 can be changed according to the thickness of the sealing body (the suspension form will be described with reference to FIG. 3).

  At the sealing body transport position of the transport belt 24, transport belt rollers 25 to 27, which are transport belt pressing portions that are movable up and down according to the thickness of the seal body, are pushed up from the lower surface side of the seal body. Provided. Of the transfer rollers 25 to 27, the transfer roller 25 will be described as an example. As shown in FIG. 1B, one end of the arm 25A is fixed to the rotary shaft 25B, and the both ends of the other end of the arm 25A are fixed. Two conveyor belt rollers 25, 25 are attached in a free state.

  Both ends of the rotary shaft 25B are rotatably attached to the apparatus housing side plates 41A and 41B. For example, one end of the spring receiving arm 41 is attached to one end passing through the apparatus housing side plate 41A, and the other end is attached to the other end. A spring 43 is attached. That is, a force for pushing up the conveyor belt 24 is always applied to the conveyor belt roller 25 by the spring 43.

  Therefore, when the sealing body is transported on the transport belt 24, the transport roller 25 is pushed down together with the rotary shaft 25B by the thickness. At this time, the spring 43 is extended, and the force to be contracted acts to press the conveying belt 24 against the sealing body.

  This structure is the same for the conveyor belt rollers 26 and 27, but the length of the arm 25A of the conveyor belt roller 25 is set longer than the arms 26A and 27A of the conveyor belt rollers 26 and 27. . This means that the conveying roller 25 is pushed downward with a weaker force than the conveying belt rollers 26 and 27, and particularly, by disposing the conveying roller 25 at the sealing member carry-in port, damage to the sealing member at the time of carrying in is reduced. Is.

  The conveyor belts 24 and 24 and the conveyor belt rollers 25 to 27 (including the belt suspension inlet roller 21, the belt suspension outlet roller 22 and the tension roller 23) are arranged in a plurality of rows as shown in FIG. Composed. An inlet pressing roller 28 is provided corresponding to the belt suspension inlet roller 21, and an outlet pressing roller 29 is provided corresponding to the belt suspension outlet roller 22. These elements constitute a belt conveyance unit.

  Further, the flap inspection unit 30 is disposed on the sealing body transport position of the transport belt 24. A presser movable block 31 and a presser roller 32 that constitute an upper surface regulating unit that regulates the upper surface position of the sealing body conveyed on the belt conveyance unit (each conveyance belt 24) are provided in the casing portion of the flap inspection unit 30. .

  The flap on the upper surface of the sealing body to which the pressing movable block 31 is conveyed is pressed downward, and the pressing roller 32 serves to regulate the position of the upper surface of the flap in a free rotating or fixed form. In other words, the flap of the sealing body that is being transported is applied in the upward direction by the transport belt 24 and is held between the presser movable block 31 and the presser roller 32 portion of the upper surface position restricting portion.

  As shown in FIGS. 1 (A) and 2 (B), the flap inspection unit 30 includes a detection unit 33 and an air blowing port 34 between the pressing movable block 31 and the pressing roller 32 of the upper surface position regulating unit. Provided. The detection unit 33 (33A) includes a light emitting unit and a light receiving unit, and is an optical sensor configured as a pair with, for example, a reflection unit 33B provided on the other apparatus housing side plate 41B. In addition, it is good also as the detection part 33B and the reflection part 33A. The air blowing port 34 communicates with air injection means (not shown), and blows air 34A from the air blowing port 34 to the bonded portion (bonding edge) of the sealing body flap. The optical sensor and the air blowing mechanism constitute a flap inspection means.

  That is, when the air 34A is blown to the bonded portion of the flap, the flap is determined to be in the bonded state when the laser beam 33C emitted from the detecting portion 33A is reflected by the reflecting portion 33B and received. Further, when a part of the flap is lifted by blowing air 34A, the laser beam 33C from the detection unit 33A is blocked and is not reflected by the reflection unit 33B. .

  Therefore, FIG. 3 shows an explanatory view of the sealing body conveyance of FIG. 1, and FIG. 4 shows an explanatory view of the flap inspection of FIG. In FIG. 3 (A), the sealing body 51 with the sealing material inserted and glued with the flap 51A from the transport belt 12A of the sealing body supply section 12 has the flap side as an upper surface, and the flap is placed on one end side in the transport direction. When the address portion on the lower surface is positioned on the transparent table 13, the image is captured by the imaging camera 14 in the transported state, and whether the address is in a visual recognition state, address matching determination, and the like are performed.

  Then, as shown in FIG. 3B, the sealing body 51 is carried in from the belt suspension entrance roller 21 and the entrance presser roller 28, the upper surface position is regulated by the presser movable block 31 and the presser roller 32, and the transport roller 25. At the time of sequentially reaching -27, the transport rollers 25-27 are sequentially pushed downward according to the thickness of the sealing body 51. At the same time, the tension roller 23 moves downward to maintain the tension of the conveyor belt 24. If the thickness of the sealing body 51 can absorb the change in the circumferential length by elastic deformation of the transport belt 24, the tension roller 23 may be fixedly disposed.

  That is, when the sealing body 51 is positioned, the suspension form of the transport belt 24 is changed by the transport rollers 25 to 27 and the tension roller 23. This is the same whether the sealing body 51 is small or thick.

  Subsequently, as shown in FIGS. 4A and 4B, the detection unit 33A irradiates the laser beam 33C at the position of the detection unit 33A and the air blowing port 34 of the sealing body 51 to be conveyed, and the flap 51A Air 34 </ b> A is blown from the air blowing port 34 onto the bonded portion (bonded end side).

  When the air 34A is blown to the bonded portion of the flap 51A, the laser beam 33C emitted from the detection unit 33A is received by the reflection of the reflecting unit 33B, and the flap is determined to be in the bonded state. Further, as shown in FIG. 4B, when a part of the flap 51A is lifted by blowing air 34A, the laser beam 33C from the detection unit 33A is blocked and received without being reflected by the reflection unit 33B. If not, it is determined that the adhesion is poor.

  In this way, the thickness of the sealing body 51 is absorbed by the change in the suspension form of the transport belt 24 without changing the position of the flap 51A of the sealing body 51, so that the thickness of the sealing body 51 is also transported for different thicknesses. It is possible to improve the working efficiency without adjusting the mechanism or the like. Further, by adjusting the address visually recognizable portion of the sealing body 51 as the lower surface, it is possible to eliminate the need for imaging focus adjustment for matching or the like.

  The sealing body flap inspection apparatus of the present invention can be used in the industry of manufacturing and using a device that seals a sealed object in a sealing body such as an envelope.

DESCRIPTION OF SYMBOLS 11 Seal body flap inspection apparatus 12 Seal body supply part 13 Transparent mounting table 14 Imaging camera 21 Belt suspension entrance roller 22 Belt suspension exit roller 23 Tension roller 24 Conveyance belt 25-27 Conveyor belt roller 30 Flap inspection part 31 Pressing movable block 32 Presser Roller 33 Detector 34 Air blowing port 51 Sealing body 51A Flap

Claims (1)

A sealing body flap inspection device for inspecting the adhesive state of the flap when the sealing body's flap into which the sealing material has been inserted is glued,
A belt conveying unit that conveys the glued flap side of the sealing body to a top surface by a predetermined number of conveying belts, and the suspension form of the conveying belt can be changed according to the thickness of the sealing body;
An upper surface restricting portion for restricting the upper surface position of the sealing body conveyed on the belt conveying portion;
The conveyor belt is pushed up from the lower surface side of the sealing body, and a predetermined number of conveyor belt pressing portions that can freely move up and down according to the thickness of the sealing body;
Flap inspection means for inspecting the flap adhesion state of the sealing body regulated by the upper surface regulating portion on the conveyor belt;
A sealing body flap inspection apparatus characterized by comprising:

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