JP3325709B2 - Method and apparatus for inspecting binding straps - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for inspecting a tied cord of a tied material, and more particularly to an article which is tied with a flexible tied cord tied to a stacked stitch book and a saddle stitch book. Suitable for checking the binding condition of books, magazines, forms, notebooks, cardboard (cardboard, corrugated cardboard, etc.), signatures that have been stiffened, etc., and automatically and highly reliable inspection of the binding condition. TECHNICAL FIELD The present invention relates to a method and an apparatus for inspecting a tied cord of a tied material, which can be performed with sexuality.

[0002]

2. Description of the Related Art Flat stitch books and saddle stitch books such as books and magazines are bound with a vinyl string or the like after binding for convenience of transportation and the like, and are shipped as a main bundle. Conventionally, such binding of flat stitched books is performed by an automatic machine.However, the inspection of the quality of binding is performed by, for example, an operator pulling out a bound bundle from a transport line and pulling a binding strap by himself. It is done by.

[0003]

However, in the above-described inspection, there is a problem that it is difficult to perform uniform and accurate inspection because the criterion for determining the quality of binding depends on the operator's feeling. There is a problem that the burden on the operator is heavy, and the inspection format must be adopted as sampling inspection, and the reliability of the inspection is lacking. The present invention has been made in view of the above-described problems, and provides an inspection method and an inspection apparatus capable of automatically inspecting the quality of a unity, thereby improving the reliability of inspection and reducing the work load of an operator. Aim.

[0004]

In order to achieve the above object, a first aspect of the present invention relates to a tied object for inspecting the quality of a tied object in the course of being conveyed by a conveyer on a tied object tied by a string in a stacked state. The binding strap inspection method according to claim 1, wherein when the binding article reaches a predetermined position, at least one article in a central portion of the binding article is horizontally pressed and protruded, and a tensioned state of the binding strap is detected to detect the binding state of the binding strap. Pass / fail is determined, and when the binding is determined to be good, the protruding article of the binding object is immersed in a regular position to correct the stacked state of the article.

According to a second aspect of the present invention, there is provided a conveyor for transporting a tied object tied by a tying string in a state in which articles are stacked, and a right and left vertical stopper in a conveying direction of the tied object having reached a predetermined position of the conveyor. A lateral string detector including a pusher and a string detector on the left side, and a longitudinal string detector including a transport direction front upper and lower stopper, a rear pusher, and a string detector in front of the lateral string detector. A binding string inspection device for a binding material, comprising: a stopper in the forward direction in the transport direction, a pusher on the right side, and a concavo-convexity correction device having a rotation pressing rotor on the left rear side in front of the vertical direction string detection device.

[0006] The invention described in claim 3 is based on claim 2.
In the binding cord inspection device of the binding material described above, the vertical stoppers of the horizontal and vertical cord detection devices are configured so that the pressure receiving plate can be moved up and down by a driving cylinder.

[0007]

According to the method for inspecting a tied cord of a tied object according to the present invention, the upper and lower parts of the tied object sequentially conveyed by the conveyor are restrained, and the upper and lower parts are constrained. Press the article in the center of the bundled material horizontally,
The quality of the binding is determined based on the tension of the binding strap when pressed. For this reason, it is possible to continuously inspect the binding state of the bundled goods sequentially conveyed by the conveyor on a constant basis,
High reliability is obtained.

Further, according to the apparatus for inspecting a tied cord of a tied object according to the present invention, the tied state of the tied cord of the tied object conveyed by the conveyor is determined by the lateral cord detecting device based on the tension of the tied cord in the lateral direction. Then, the quality of the binding is determined from the tension state of the binding strap in the vertical direction by the longitudinal strap detection device,
When it is determined that the tying of the tying string in the horizontal direction and the vertical direction is good, the unevenness correcting device corrects the laminated state of the article.
For this reason, the inspection can be automated, the entire inspection can be easily performed, and high reliability can be obtained.

[0009] In particular, the apparatus for inspecting a tied cord of a tied material according to the present invention is arranged such that the vertical stoppers of the horizontal and vertical tying detectors are configured so that the pressure receiving plate can be moved up and down by a driving cylinder, so that the conveyor can be moved from above the conveyor. Both the horizontal string inspection and the vertical string inspection can be continuously automated without lowering the binding object, and the inspection can be performed efficiently and continuously. (Claim 3).

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show an apparatus for inspecting a tied cord of a tied material according to one embodiment of the present invention, and FIG.
2 is a schematic plan view of the entirety, FIG. 3 is a schematic front view showing a peripheral portion of the string inspection device, FIG. 4 is a schematic side view of a peripheral portion of each device, FIG. 5 is a partially enlarged front view of the device. FIG. 6 is a schematic front view of the unevenness correcting device, and FIG. 7 is a schematic plan view of the unevenness correcting device.

In FIGS. 1 and 2, A denotes a main bundle (bundled material), 10 denotes a transport conveyor for transporting the main bundle B.
Numeral 0 extends between an automatic binding machine (not shown) and a shipping place. The main bundle A has a plurality of layers (in the present embodiment,
Eleven) flat stitched books (articles, hereinafter referred to as magazines) a are tied in a cross with vinyl strings b, and the side faces formed by the long sides and short sides of the magazine a, that is, the vertical and horizontal sides b. In this embodiment, 11
The book bundle A in which the book magazines a are bound, and a magazine which is usually a side stitch book or a saddle stitch book is exemplified as an article. The type can be selected as appropriate, and the present invention can be applied to various types of binding materials obtained by binding books, magazines, forms, notebooks, cardboard (cardboard or corrugated cardboard) or signatures with stiffness with a flexible binding string. Can be applied.

The conveyor 10 has a ladder-type frame in which a number of rollers 11 are arranged in parallel.
At least one roller 11 has a built-in motor, and each roller 11 is integrally rotatably connected by a connecting means such as a belt. The transport conveyor 10 includes a first inspection station X for inspecting the binding state of the horizontal binding straps b of the main bundle A along the transport direction, and a binding state of the vertical binding straps b of the main bundle A in the transport direction. A second inspection station Y to be inspected and a correction station Z are set. The first inspection station X corresponds to a horizontal string detection device, the second inspection station Y corresponds to a vertical string detection device, and the correction station Z corresponds to an unevenness correction device.

As shown in FIGS. 3 and 4, the first inspection station X is provided with a transmission type photosensor 13 for detecting that the main bundle A has reached a predetermined position. , A pressing mechanism 30, a string detector 40, a rejector mechanism (pusher) 50, and a stopper mechanism 80. The photo sensor 13 includes a known light receiving element and a light emitting element connected to a controller (not shown) and outputs a detection signal to the controller when the main bundle A reaches a predetermined position.

The constraining mechanism 20 includes a roller 1 of the conveyor 10.
1, a lower restraining member (pressure receiving plate) 21 disposed so as to be able to protrude and retract onto the roller 11, a lower cylinder 22 for driving the lower restraining member 21, and a vertically movable member above the roller 11 of the conveyor 10. Provided upper restraint member (pressure receiving plate) 2
3 and an upper cylinder 24 for driving the upper restraining member 23
And Lower cylinder 22 and upper cylinder 24
Is connected to the controller described above and
When the main bundle A reaches a predetermined position, the lower cylinder 22 moves the lower restraining member 21 to the conveyor 10.
Of the upper cylinder 24
Lowers the upper restraint member 23 when the main bundle A reaches a predetermined position.

The lower restraining member 21 has a substantially plate-like shape that can be loosely inserted between the rollers 11 of the conveyor 10 and is protruded above the conveyor 10 (the state shown in FIG. 1). (In this embodiment, four magazines a) are engaged with the front surface of the magazine a in the transport direction S to restrict displacement in the direction S. The upper restraint member 23 has a substantially plate shape, and engages with the front side in the transport direction of a plurality of (four in this embodiment) magazines a on the upper side of the main bundle A in the lowered state (the state of FIG. 1). The displacement in the direction S is regulated.

The pressing mechanism 30 has a mounting member 32 fixed to the operating rod of the elevating cylinder 31, and a pressing member 34 is mounted on the mounting member 32 by a pressing cylinder 33 so as to be able to advance and retreat in the transport direction S. The string engaging member 35 is fixed to the leading end of the rod 35a slidably penetrating in the transport direction S. The elevating cylinder 31 and the pressing cylinder 33 are controlled by the above-described controller in synchronization with the above-described restraining mechanism 20, and the elevating cylinder 31 drives the mounting member 32 up and down, and the pressing cylinder 33 presses the pressing member 34.
Is driven forward and backward in the transport direction S. Although not shown, the above-described pressing cylinder 33 has a working rod having a rectangular cross-section to inhibit rotation of the pressing member 34,
The rod 35a also has a rectangular cross section and prohibits rotation of the string engaging member 35.

The pressing member 34 is arranged such that a pair of pressing portions 34a separated in the horizontal direction perpendicular to the transport direction S are connected by a connecting portion 34b so that the pressing portions 34a are located on both sides of the string b. A stopper portion (not shown) of the string engaging member 35 is formed by cutting out the attachment member 32 side at 34b.
When the pressing member 34 is driven in the transport direction S by the pressing cylinder 34 (see FIGS. 1 and 3), the pressing portion 34a moves a plurality of (three in this embodiment) magazines a at the center toward the front in the transport direction. Extrude (hereinafter referred to as an extruded state if necessary).

As shown in detail in FIG. 5, the string engaging member 35 has a hook-like shape when viewed from the front, and a pressing portion 34a of the pressing member 34.
A spring (hereinafter referred to as the same reference numeral 36 as the case)
) In the direction away from the mounting member 32 (to the left in FIG. 3, coincident with the transport direction S). The string engaging member 35 is pressed by the pressing member 34 by the urging force of the spring 36.
And move integrally with the pressing member 34,
When the main bundle A moves in the transport direction S and engages with the binding string b (when the binding state of the main bundle A is normal as described later), it separates from the stopper portion of the pressing member 34.

The pressing member 34 is provided with a photoelectric sensor 41 composed of a light emitting element and a light receiving element provided on the pressing portion 34a, and the mounting member 32 is provided with a displacement for detecting the displacement of the string engaging member 34. A sensor (not shown) is provided. As shown in detail in FIG. 5, the photoelectric sensor 41 pushes the binding string b engaged with the string engaging section 34b in the pushed state in which the pressing section 34a presses and extrudes the magazine a in the center of the main bundle A. The detectable position, that is, the engaging portion 3 in the front view of FIGS.
4b.
The photoelectric sensor 41 is connected to the controller described above, determines that the binding b is detected in the pushing state of FIG. 3 described above as the presence of the string b, and outputs a determination signal to the controller.

The displacement sensor determines the tension state (tension) of the string b from the displacement of the string engaging member 34 with respect to the mounting member 32. The displacement sensor is connected to the controller, determines that the string b is in the relaxed state when the displacement of the string engaging member 34 exceeds a predetermined value, and outputs a binding failure signal, and the displacement of the string engaging member 34 indicates the predetermined value. In the following cases, it is determined that the string b is in a normal binding state, and a good binding signal is output. These photoelectric sensors 4
1 and the displacement sensor constitute a string detector 40.

As shown in FIG. 3, the rejector mechanism 50 includes a plate-shaped pushing member 51 which can abut on a side surface parallel to the conveying direction S of the main bundle A, and an actuator (not shown) for driving the pushing member 51. Z). When the actuator is driven and controlled by the controller, and the string detector 40 determines that the bundling failure or the absence of the string b exists, the rejector mechanism 50 transfers the main bundle A to the defective transport conveyor (not shown) adjacent to the conveyor 10. Extrude toward

The stopper mechanism 80 has a stopper member 81 which can be protruded and retracted on the roller 11 from below the roller 11 of the conveyor 10, and a cylinder 82 which drives the stopper member 81 up and down. In the stopper mechanism 80, the cylinder 82 is driven based on the output of the photosensor 13 described above, and when the main bundle A reaches a predetermined position, the stopper member 81 protrudes above the conveyor 10 to prohibit the movement of the main bundle A.

Similarly to the above-described first inspection station X, the second inspection station Y is provided with a transmission type photosensor 13 for detecting that the main bundle A has reached a predetermined position. A mechanism 20, a pressing mechanism 30, a string detector 40, and a rejector mechanism 50 are provided. In the second inspection station Y, the binding state of the binding strap b in the longitudinal direction of the main bundle A is inspected in the same manner as in the first inspection station X described above.

The structure of each mechanism of the second inspection station Y does not include the above-mentioned stopper mechanism 80, except for the difference in the arrangement direction depending on whether the inspection target is a horizontal string or a vertical string. The configuration is the same as that of the first inspection station X, and the corresponding parts will be denoted by the same reference numerals and description thereof will be omitted below.

FIG. 6 and FIG.
As shown in FIG. 7, a transmission type photosensor 15 for detecting that the main bundle A has reached a predetermined position is provided with a correction stopper 69 on the front side in the conveyance direction, and a correction stopper 69 on the front side in the conveyance direction S.
A straightening mechanism 60 is provided on one side of the conveyor 10, and an extruding mechanism 70 is provided on the other side of the conveyor 10. Photo sensor 15
Is connected to the controller similarly to the photosensor 13 described above, and outputs a detection signal to the controller when the main bundle A reaches a predetermined position. The correction stopper 69 has a correction plane 69a that extends vertically perpendicular to the transport direction S,
It is located on the front side in the transport direction S of the correction station Z, that is, at the end of the conveyor 10.

The straightening mechanism 60 is provided with an upright column on the side of the conveyor 10, and supports a central portion of a substantially linear revolving arm 62 on the upper portion of the column so as to be swingable.
2, each of which has a beating member 63 fixed to both ends. The swivel arm 62 is connected to a rotary actuator 61 housed in a column, and is driven by the actuator 61 to swing between a solid line position in FIG. 5 and two chain line positions as shown by arrows in FIG. Move. The drive of the rotary actuator 61 is controlled by a controller based on the output of the photo sensor 15. The hitting member 63 is made of a plate material capable of hitting a predetermined range of a side surface of a portion pushed out of the main bundle A, and is rotatably attached to a tip end of the turning arm 62.

Before the main bundle A reaches the predetermined position, the correcting mechanism 60 holds the main arm A in the solid line state in FIG. , The swivel arm 62 is swiveled to two dashed line positions, and the striking member 63 successively strikes two side surfaces perpendicular to the side of the main bundle A so as to strike between the correction stopper 69 and the pushing mechanism 70.
The side edges of the magazine a at the center of the main bundle A are aligned with the pushing member 51 described later. That is, the correction mechanism 60
Corrects the stacked state of the magazines a of the book bundle A, which is disturbed by the pressing mechanism 30 of each station described above, so that the periphery of each magazine a is aligned. The hitting member 63 described above is not limited to the above-described flat plate shape, but may be of various shapes such as a cylinder (column) or a block.

Like the rejector mechanism 50 described above, the pushing mechanism 70 includes a plate-like pushing member 71 that can abut on a side surface parallel to the transport direction S of the main bundle A, and an actuator (an actuator that drives the pushing member 71). (Not shown). The actuator of the push-out mechanism 70 is driven and controlled by a controller, pushes out the bundle A corrected by the above-described straightening mechanism 60, and transfers the bundle A to a merging conveyor (not shown).

In this embodiment, a main bundle A, which is a cross bundle of a plurality of (11) magazines a with vinyl strings b, is conveyed by the conveyor 10, and the first inspection station X,
It passes sequentially through the second inspection station Y and the correction station Z. Then, as described in detail below, the inspection of the binding state of the horizontal cord b of the main bundle A is performed at the first inspection station X, and the inspection of the binding state of the vertical cord b of the main bundle A is performed at the second inspection station Y. In the correction station Z, the magazine a shifted in the inspection of each inspection station is corrected so that the outer peripheral edges thereof coincide with each other.

First, at the first inspection station X, the main bundle A reaching the predetermined position is detected by the photo sensor 13, and upon this detection, the restraining mechanism 20 is driven by the lower restraining member 21 by the lower cylinder 22 and the conveyor The upper constraining member 23 protrudes above the rollers 11 and is lowered by being driven by the upper cylinder 24. Therefore, the main bundle A
As shown in FIG. 2, the upper four magazines a contact the upper restraint member 23 and the lower four magazines a contact the lower restraint member 21. Is restricted. In other words, the main bundle A is prohibited from being displaced forward in the transport direction S of the other magazines a except the three magazines a in the center.

Subsequently, when it is detected by a micro switch or the like that the lower restraint member 21 has moved to the upper limit position and the upper restraint member 23 has moved to the lower limit position, the mounting member 32 is driven by the lifting / lowering cylinder 31 to move the pressing mechanism 30. And descend,
Subsequently, the pressing member 34 is driven by the pressing cylinder 33 and moves toward the main bundle A. Then, the pressing member 34
The pressing portion 34a contacts the side surface of the main bundle A and
The magazine a is pushed forward between the restraining members 21 and 23 in the transport direction S.

At this time, the string engaging member 35 is
6 and is engaged with the stopper portion of the pressing member 34, and advances with the pressing member 34 to detect the presence or absence of the binding string b. If there is no tie b, a signal for driving the rejector mechanism 50 is immediately sent as a no-string defect, and the signal of the tension test result of the tie b is canceled. Then, after the string engaging member 35 and the pressing member 34 return to the standby position, the rejector mechanism 50 is driven to push the main bundle A in the lateral direction.

If the horizontal tying string b is normally hung around the main bundle A, the string engaging member 35 engages with the horizontal tying string b as shown in FIGS. The photoelectric sensor 41 detects the string b, and the displacement sensor detects the displacement of the string engaging member 35. If the displacement of the string engaging member 35 is equal to or less than a predetermined value, it is determined that the binding is good. The judgment signal is output to the controller. That is, in this embodiment, in the state where the magazine a at the center of the bundle A is pushed forward,
When the string b engaged with No. 5 is detected by the photoelectric sensor 41 disposed on the pressing portion 34a, and the displacement of the string engaging member 35 is equal to or less than the predetermined value and the tension of the string b is large, it is determined that the binding is good.

On the other hand, when the magazine b at the center of the bundle A is pushed out and the bundling string b in the horizontal direction is not detected by the photoelectric sensor 41, or when the displacement of the string engaging member 35 exceeds a predetermined value, When b is in a relaxed state, for example, when the string b itself does not exist, it is determined that the binding is defective, and a determination signal of the binding failure is output to the controller. Then, the bundle A having the poor binding is pushed out by the rejector mechanism 50 onto a conveyor for transporting the defective product. That is, when a binding abnormality is found by this inspection, the unit is transferred to a defective product conveyor without performing inspection or correction of the string b in the vertical direction later. Therefore, unnecessary inspection and processing can be omitted, and inspection and the like can be performed efficiently.

When the binding state of the main bundle A is normal, when a judgment signal is input from the photoelectric sensor 41 to the controller, the lower cylinder 22 causes the lower cylinder 22 to move the lower restricting member 21 to the lower side of the roller 11 of the conveyor 10. To the upper restraining member 23.
To rise. Next, book bundle A is the three magazines a in the center.
Are conveyed by the conveyor 10 toward the second inspection station Y in a state where they protrude. Then, in the second inspection station Y, the inspection of the binding strap b in the longitudinal direction of the main bundle A is performed in the same manner as in the first inspection station X. That is,
In the same manner as in the first inspection station, the magazine a in the central portion is extruded in the horizontal direction to inspect the string b in the vertical direction, and only the main bundle A having good binding is transported toward the correction station Z. Then, the bundle A having the poor binding is immediately pushed out to the conveyor for transporting the defective product. Therefore, the inspection such as straightening can be performed efficiently and in a short time without wastefully performing processing such as correction on the main bundle A having poor binding. Note that the processing in the second inspection station Y is the same as that in the first inspection station X, and a description thereof will be omitted.

In the correction station Z, the arrival of the main bundle A at a predetermined position is detected by the photo sensor 15,
The two sides of the main bundle A orthogonal to each other are brought into contact with the correction stopper 69 and the pushing member 51 of the pushing mechanism 70 and stopped. And
When the turning arm 62 stands by at the solid line position in FIG. 5 and the photosensor 15 detects the main bundle A, the turning arm 62 is driven to rotate by the rotary actuator 61 and the striking member 63 orthogonally crosses the main bundle A. The two sides
Or beat repeatedly. That is, the swing arm 62
Is turned to one chain line position in FIG. 7 and one of the hitting members 63 hits the side surface of the bundle A toward the correction stopper 69, and then turns in the opposite direction to turn the book by the other hitting member 63. The side of the bundle A is beaten toward the pushing member 51. For this reason, the main bundle A in which the magazine a at the center protrudes in the horizontal direction in the inspection by the two inspection stations described above is corrected to a normal stacked state in which the peripheral edges of the magazines a are aligned. At this time,
The extruding mechanism 70 can drive the extruding member 71 to repeatedly advance and retreat in a predetermined range so that the correction can be performed smoothly and efficiently.

After the correction is completed, the extruding mechanism 7
0 is activated, and the main bundle A is pressed by the pushing member 71 and transferred to the merging conveyor.

As described above, in this embodiment, the pressing members 3 are held while the upper and lower magazines a of the book bundle A conveyed by the conveyor 10 are pressed by the restraining members 21 and 23, respectively.
4 presses the magazine a at the center of the main bundle A in the horizontal direction to protrude. Then, the tension state of the binding strap b in a state where the magazine a at the center protrudes in the horizontal direction, specifically, the binding strap b
Is detected at the predetermined position by the photoelectric sensor 41 to determine whether or not the binding is good. Then, the main bundle A having the good binding is retracted to the original position of the protruding central magazine a by the correction mechanism 60. Since the stacking state is configured to be corrected, a series of processes can be automatically performed without bothering the operator, and can be performed according to a certain standard, and high reliability can be obtained.

Particularly, in this embodiment, the cord engaging member 35 is positioned between the pair of pressing portions 34a of the pressing member 34.
And the photoelectric sensor 41 for detecting the string b engaging with the string engaging portion 35 is provided on the pressing portion 34a, so that the detection reliability is high and the structure of the detector can be simplified.

In the above-described embodiment, it is determined whether or not the binding string b is engaged with the string engaging member 35 along a predetermined locus in a state where the magazine a at the center of the bundle A is pushed out by the pressing member 34. Is detected by the photoelectric sensor 41 to determine the quality of the unity. However, the interval between the string b and the extruded magazine b or the tension of the string b is detected, and the quality of the unity is determined from these. Is also possible.

[0041]

As described above, according to the first and second aspects of the present invention, the upper and lower articles of the bundle conveyed by the conveyer are pressed by the restraining mechanism, and in this state, the central part of the bundle is bound. The article is pressed and projected in the horizontal direction, the quality of the binding is determined from the tensioned state of the binding strap in the projected state, and this determination is made in both the horizontal and vertical directions, and the bound product with good binding is extruded. Since the central article obtained is returned to the original laminated state in which the side edges of all the articles coincide with each other and sent out to the next step, the inspection of the binding state can be automated, and there is an effect that high reliability can be obtained.

According to the third aspect of the present invention, since the upper and lower stoppers of the horizontal and vertical string detectors are configured so that the pressure receiving plate can be moved up and down by the drive cylinder, the binding material is lowered from the conveyor. The inspection of the string in the horizontal direction and the inspection of the string in the vertical direction can be performed consecutively, and the inspection can be performed efficiently and continuously.

[Brief description of the drawings]

FIG. 1 is an overall schematic front view of a binding stapling device for a flat stitch book according to an embodiment of the present invention.

FIG. 2 is an overall schematic plan view of the binding strap inspection device.

FIG. 3 is an enlarged front view of a part of the binding strap inspection device.

FIG. 4 is an enlarged side view of the same part.

FIG. 5 is an enlarged front view of a main part of the same part.

FIG. 6 is an enlarged front view of another part of the inspection apparatus.

FIG. 7 is an enlarged plan view of the same part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Conveyor 11 Roller 13 Photosensor 20 Restraining mechanism 21 Upper restraining member 22 Lower cylinder 23 Upper restraining member 24 Upper cylinder 30 Pressing mechanism 31 Elevating cylinder 32 Mounting member 33 Pressing cylinder 34 Pressing member 34a Pressing portion 34b Connecting portion 35 String engaging member Reference Signs List 36 spring 40 string detector 41 photoelectric sensor 50 rejector mechanism 60 straightening mechanism 61 support 62 turning arm 63 hitting member 70 takeout mechanism A bundle (bundled material) a magazine (flat stitch book, article) b bundling string X first inspection Station Y Second inspection station Z Straightening station

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kenichi Ansai 4-14-12 Koishikawa, Bunkyo-ku, Tokyo Within Kyodo Printing Co., Ltd. (72) Inventor Yusuke Kiyota 4- 14-12 Koishikawa, Bunkyo-ku, Tokyo Within Kyodo Printing Co., Ltd. (72) Inventor Yasuhiro Ishino 4-14-12 Koishikawa, Bunkyo-ku, Tokyo Kyodo Printing Co., Ltd. (56) References JP-A-5-170218 (JP, A) JP-A Sho 54-10136 (JP, A) JP-A-59-152127 (JP, A) JP-A-57-96929 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65B 13/18 B65B 57/02

Claims (3)

(57) [Claims] 1. A method for inspecting the quality of a tying of a tied material in the course of transporting a tying material tied by a string in a stacked state by a conveyor, when the tying material reaches a predetermined position. Pressing and projecting at least one article in the central part of the binding object in the horizontal direction, detecting the tension state of the binding strap to determine the quality of the binding,
A method for inspecting a tied cord of a tied material, wherein when the tied quality is determined to be good, the protruding article of the tied substance is immersed in a regular position to correct the laminated state of the tied object. 2. A conveyor for transporting a tied object tied by a tying string in a state where articles are stacked, a right and left stopper, a left pusher and a left detector in a conveying direction of the tied object reaching a predetermined position of the conveyor. A horizontal string detector provided with: a vertical string detector including a transport direction front upper / lower stopper, a rear pusher and a string detector in front of the horizontal string detector; and a vertical string detector. An apparatus for inspecting a tied cord of a tied material, comprising: a front side, a stopper on the right side in the transport direction, a pusher on the right side, and an unevenness correction device with a rotary pressing rotor on the left rear side. 3. The apparatus according to claim 2, wherein the vertical stoppers of the horizontal and vertical string detectors are configured to be able to move the pressure receiving plate up and down by a drive cylinder.