JP6054657B2 - Yarn binding device - Google Patents

Description

  The present invention relates to a yarn binding bookbinding apparatus that creates a booklet having traditional decoration and excellent durability by applying a Japanese binding method.

  Conventionally, there are two types of bookbinding: bookbinding for relatively inexpensive paperbacks and new books, and bookbinding for expensive commemorative magazines and albums. Of these, upper bookbinding is generally intended for long-term storage, so a strong and beautiful binding is desired. A cardboard is used for the cover, a cloth or cloth is pasted thereon, and the body is bound by a technique such as simple binding or thread binding, thereby exhibiting high strength and tear resistance.

  Wireless binding is a general binding method, and it is a manufacturing method in which all the backs of signatures etc. are joined together with an adhesive without using binding materials such as wire and thread, and further joined to the cover. If the adhesive medium is inserted, the opening of the book will worsen, and if you try to open it forcibly, there is a risk of back cracking or dropping of the text.

On the other hand, thread binding is a technique of binding by making a hole in a collated signature and binding it with a thread, and is a preferable binding method for upper bookbinding because it has high strength.
For example, Patent Document 1 (Japanese Patent Laid-Open No. 2011-79146) discloses a process of collating a plurality of upper bookbinding sheets to form a text, and a plurality of texts penetrating the text along the back edge of the text. There has been proposed a method of manufacturing an upper bound book having a step of drilling a thread hole and a step of writing a stroke so as to sew the thread hole and inserting a binding thread into the thread hole to form a body.

  Patent Document 2 (Japanese Patent Application Laid-Open No. 2004-74686) discloses a paper binding device that manufactures booklets such as flat-stitched books and saddle-stitched books. Describes a yarn binding apparatus that performs yarn binding while reciprocating the yarn binding sewing machine. In Patent Document 3 (Japanese Patent Application Laid-Open No. 2001-341460), when finishing a signature with a thread connected, a looper that entangles the looper thread around the loop part of the needle thread carried by the needle, and a puller pulled out from the tip of the looper. A bookbinding sewing machine having a spreader for extending the looper yarn in a direction transverse to the conveying direction of the signature is described.

JP 2011-79146 A JP 2004-74666 A JP 2001-341460 A

  However, in the yarn binding apparatus to which the conventional yarn binding method is applied, the interval between adjacent yarn binding holes is short, the frictional force of the yarn inserted through the yarn binding hole becomes excessive, and the looseness of the yarn is adjusted. Since the movement of the thread binding sewing machine needle is restricted, there has been a problem that it is difficult to finish the book with a traditional texture with a handmade feeling using a relatively thick and decorative binding thread. In particular, in the bookbinding sewing machine disclosed in Patent Document 1, the movement of the upper thread that is stabbed into the booklet and the movement of the looper thread that is the lower thread must be controlled at the same time. There was also a problem of increasing the cost.

  The present invention has been made in order to solve the above-described conventional problems, and mechanically realizes a yarn binding operation like a craftsman's handicraft, and can easily adjust the yarn tension and the like, and is a robust and traditional binding. It is an object of the present invention to provide a yarn binding bookbinding apparatus that can efficiently manufacture a booklet.

(1) The yarn binding apparatus according to the present invention includes:
Drilling a plurality of yarn binding holes (A) along the back edge (ST) of the booklet (S) collating a plurality of bookbinding sheets;
The yarn binding operation is performed by a zigzag motion in which the yarn binding needle (20) through which the binding yarn (T) is passed is sequentially inserted from the front side or the back side of the booklet (S) along the adjacent yarn binding hole (A). A yarn binding device (10) to be executed,
A booklet transport table (12) for horizontally transferring the perforated yarn binding hole (A) to a set position of the yarn binding needle (20);
An elevating support mechanism (13) which is erected on the back side of the booklet transport table (12) and has a chuck mounting portion (13b) attached thereto so as to be movable up and down;
A chuck rotating unit (14) having a base portion rotatably attached to the chuck attaching portion (13b) and a tip end side of the chuck attaching portion (13b) facing the back side edge (ST) of the booklet (S);
A first needle chuck 15 and a second needle chuck 16 which are provided in the chuck rotating unit (14) so as to hold the yarn binding needle (20) and to freely advance and retract;
With
(A) The booklet conveying table (12) on which the booklet (S) having the yarn binding hole (A) is placed is horizontally transferred, and the yarn binding hole (A ) Is positioned directly below the needle (20) for yarn binding,
(B) releasing the needle gripping state of the second needle chuck (16) on the side close to the booklet S and retracting it toward the chuck rotating unit (14);
(C) After retracting the second needle chuck (16) to a position where it does not interfere with the booklet (S),
By lowering the chuck mounting portion (13b) of the lifting support mechanism (13),
The tip end side of the yarn binding needle (20) held by the chuck rotating unit (14) is inserted into the yarn binding hole (A) of the booklet (S) and stopped at a substantially intermediate position thereof,
(D) The second needle chuck (16) in the retracted position is advanced to grip the lower part of the yarn binding needle (20),
(E) The needle gripping state of the first needle chuck (15) positioned on the front side is released while the second needle chuck (16) positioned on the back side of the booklet (S) is maintained in the needle gripping state. Back to the retracted position,
(F1) The yarn binding needle (20), the lower part of which is gripped by the second needle chuck (16), is further vertically moved so as to be pulled out from the yarn binding hole A,
(F2) On the back side of the booklet (S),
Advance the first needle chuck (15) in the retracted position,
Gripping the upper portion of the yarn binding needle (20) drawn from the yarn binding hole (A) and passed through the yarn thread (T) at the needle proximal end of the yarn binding thread (T);
(G) rotating the chuck rotation unit (14) 180 degrees so as to invert the top and bottom of the yarn binding needle (20);
The booklet transport table (12) is horizontally transferred, and the thread binding hole (A ′) to be inserted next is positioned immediately below the tip of the thread binding needle (20),
By repeating the same steps as the yarn binding steps (a) to (g) from the back side,
It is characterized in that a bound booklet is manufactured .

(2) The yarn binding apparatus according to the present invention includes a horizontal transfer positioning operation of the booklet conveyance table (12), an elevating operation of the elevating support mechanism, and a reversing operation of the chuck rotating unit in (1). The needle gripping operation and the advancing / retreating operation of each of the first needle chuck 15 and the second needle chuck 16 are linked by program control,
The binding thread (T) passed through the thread hole (21) of the thread binding needle is placed on the front side or the plurality of thread binding holes (A) provided along the back edge (ST) of the booklet (S). A control unit (18) that sequentially inserts the booklet (S) in a zigzag shape from the back side is provided.

The yarn binding apparatus of the present invention has a plurality of yarn binding holes (A) formed along the back side edge (ST) of the booklet (S) obtained by collating a plurality of bookbinding sheets, and binding yarn ( Yarn binding book that performs a yarn binding operation by a zigzag movement in which the yarn binding needle (20) passed through T) is sequentially inserted from the front side or the back side of the booklet (S) along the adjacent yarn binding hole (A). A device (10) comprising:
A booklet transport table (12) for horizontally transferring the punched yarn binding hole (A) to the set position of the yarn binding needle (20), and a chuck standing by the back of the booklet transport table (12) An elevating support mechanism (13) having an attaching portion (13b) attached to be movable up and down, and a base portion thereof being rotatably attached to the chuck attaching portion (13b), and a tip side thereof being a back side edge (ST) of the booklet (S) ) And a first needle chuck 15 and a second needle chuck which are provided to the chuck rotating unit (14) so as to hold the yarn binding needle (20) and to be moved back and forth. 16 and so on,
The binding thread, one end of which is fastened to the thread hole at the base end of the thread binding needle, is sequentially inserted into a plurality of thread binding holes provided along the back side edge of the booklet in a zigzag shape from the front side or the back side. Booklet can be bound.
Then, the bookbinding work of a traditional and traditional bookbinding can be efficiently manufactured by reliably and quickly reproducing the yarn binding work like the handiwork of a Japanese binding craftsman.
Further, by providing the control unit, the horizontal transfer positioning operation of the booklet transport table, the elevating operation of the elevating support mechanism, the rotating operation of the chuck rotating unit, and the needle gripping operations of the first needle chuck and the second needle chuck, respectively. And advancing and retreating operations can be linked.

It is a top view of the thread binding apparatus which concerns on an Example. It is a front view of the yarn binding bookbinding apparatus according to the embodiment. It is a side view of the yarn binding device according to the embodiment. It is detailed explanatory drawing of the chuck | zipper rotation unit in the yarn binding apparatus which concerns on an Example, (a) is a top view, (b) is a side view, (c) is a left surface measurement figure. It is explanatory drawing which shows a mode that the several thread binding hole is drilled in the booklet which concerns on an Example. It is operation | movement explanatory drawing of the chuck | zipper rotation unit in the yarn binding bookbinding apparatus concerning an Example. It is a flowchart of the yarn binding process using the yarn binding apparatus according to the embodiment. It is a flowchart of the yarn binding process using the yarn binding apparatus according to the embodiment. It is a flowchart of the yarn binding process using the yarn binding apparatus according to the embodiment. It is explanatory drawing of the sum binding process in a prior art example.

The yarn binding bookbinding apparatus according to the present embodiment has a plurality of yarn binding holes formed along the back side edge of a booklet obtained by collating a plurality of bookbinding sheets, and a yarn binding needle through which a binding thread passes. A yarn binding bookbinding apparatus that performs a yarn binding operation by a zigzag operation that is sequentially inserted along adjacent yarn binding holes from the front side or the back side of a booklet,
A booklet transport table for horizontally transferring the yarn binding hole at a predetermined position in the booklet before bookbinding to the tip setting position of the needle for needle binding;
An elevating support mechanism that is positioned on the front side of the horizontally conveyed booklet transport table and on which the chuck mounting portion is vertically reciprocally movable on the front and back surfaces of the table;
A chuck rotation unit whose tip side is arranged to protrude from the back edge of the booklet body on the chuck mounting portion of the lifting support mechanism, and whose base side is pivotally supported by the horizontal rotation shaft;
The chuck rotation unit moves forward and backward to a forward position where the front end of the chuck rotation needle grips the yarn binding needle and can be stapled, and to a retracted position where the yarn binding needle is released and retracted to the back side of the booklet transport table. A first needle chuck and a second needle chuck that are provided freely and have an interval that is equal to or greater than the thickness of the booklet along the length direction of the yarn binding needle; Have.
As a result, the binding thread, one end of which is fastened to the thread hole at the proximal end of the thread binding needle, is sequentially inserted into a plurality of thread binding holes provided along the back edge of the booklet in a zigzag shape from the front side or the back side. Thus, the booklet can be bound quickly and reliably.

  The yarn binding apparatus includes a booklet conveyance table, an elevating support mechanism, a chuck rotating unit, first and second needle chucks in the apparatus main body, and a plurality of bookbinding devices along the back edge of the collated booklet. A booklet that collates multiple bookbinding sheets with a drilling machine that moves up and down to make a thread binding hole, a work lamp, and sensors to obtain the position of the booklet and the location of each part. It is a device that binds the body.

Examples of booklets that are to be bound by thread include book binding, flat binding such as books and magazines, saddle binding, catalogs, and the like.
Many Japanese-style books are made by binding multiple sheets of Japanese paper with koji or thread, and the cover on top of them is overlaid and lined.
Many of the Japanese books and reprints of the classics that are commonly seen are called “bag binding”, which folds the paper on the page and binds it with a thread. The fourth stitch (with four holes on the binding side) ) Is representative.

  The needle for thread binding is a rod-like needle having a length of 20 to 200 mm and a thickness of 1 to 2 mm inserted through a thread binding hole previously drilled in a booklet, and for passing the binding thread through the base end thereof. Thread holes are provided. As such a yarn binding needle, for example, a foldable sewing needle can be applied.

The booklet transport table is a transport device for transporting the booklet in the horizontal direction using a screw screw or the like, and is provided in the main body of the yarn binding apparatus.
The horizontal transfer operation of the booklet transport table is controlled by operating a drive system such as a motor based on pre-programmed information, and the yarn binding hole at a predetermined position in the booklet before bookbinding is moved to the yarn binding needle. It is comprised so that it can be located in a front-end | tip setting position.
It is also possible to control the horizontal transfer operation of the booklet transport table by providing a sensor for detecting the position of the booklet on the table.

  The elevating support mechanism includes an electric motor installed in the apparatus main body and an elevating mechanism driven by the electric motor, and includes a chuck base on which chuck rotation is attached to the tip of the elevating arm. Thus, the front end side of the chuck base is positioned on the front side of the horizontally conveyed booklet transport table and is arranged so as to be able to reciprocate vertically.

The chuck rotation unit is rotatably attached to a chuck pedestal of the lift support mechanism via a chuck rotation drive unit including an electric motor.
Further, the tip end side of the chuck rotating unit is disposed so as to protrude from the back side edge of the booklet placed on the booklet transport table, and the base side is pivotally supported by the horizontal rotating shaft.

The first and second needle chucks for holding the yarn binding needle are arranged as a pair on the front surface of the chuck rotating unit, and the pair has an interval equal to or greater than the thickness of the booklet to be bound.
These first and second needle chucks are driven via an advancing / retreating drive mechanism such as a pneumatic actuator or an electric motor provided in the chuck rotating unit and a chuck grip driving mechanism, and the tip of the first and second needle chucks is connected to the chuck rotating unit. And a retracted position where the thread binding needle is released and retracted to the back side of the booklet transport table.

In the present embodiment, the horizontal movement positioning operation of the booklet transport table, the lifting operation of the lifting support mechanism, the reversing operation of the chuck rotating unit, the needle gripping operation and the retreating operation of each of the first and second needle chucks are programmed. Work together
The binding thread passed through the thread hole at the base end of the thread binding needle is sequentially inserted into a plurality of thread binding holes provided along the back edge of the booklet in a zigzag form from the front side or the back side, and the booklet thread A control unit that performs binding can also be provided.
This makes it possible to reduce the number of manual operations as much as possible, and to provide superior bookbinding reliably and inexpensively by operations simulating traditional Japanese binding operations by craftsmen.

The control unit is a computer for controlling the horizontal transfer positioning operation of the booklet conveyance table, the elevating operation of the elevating support mechanism, the reversing operation of the chuck rotating unit, the needle gripping operation and the retreating operation of each of the first and second needle chucks. Or a sequencer,
It is programmed for each type of booklet to be bound, and data such as the booklet position on the table, the number, position, and hole diameter of the plurality of thread binding holes is taught, and the thread is passed through the thread binding holes in order. is there.
It should be noted that not all the steps of such a Japanese binding operation are performed by the control unit, but a part of the steps can be performed by an operator's manual assisting operation, whereby a part of the driving mechanism is omitted and bookbinding is performed. Costs can be further reduced.

Next, the yarn binding apparatus according to the present invention will be described in more detail with reference to the drawings.
1 to 3 are a plan view, a front view, and a side view, respectively, of a yarn binding bookbinding apparatus according to an embodiment.
As shown in the drawing, the yarn binding apparatus 10 includes an apparatus main body 11 disposed on the front side of an operator who performs a yarn binding operation, a booklet transport table 12 provided on the apparatus main body 11, and a back side of the booklet transport table 12. The elevating support mechanism 13 is erected on the side opposite to the operator, and the elevating support mechanism 13 protrudes from the distal end side thereof, and the base side of the horizontal rotating shaft 14a (the rotating shaft is in the horizontal position). A supported chuck rotating unit 14 is provided, and a pair of first needle chuck 15 and second needle chuck 16 disposed at a predetermined interval are provided on the chuck rotating unit 14.
Further, the yarn binding apparatus 10 controls the operation of the drilling machine 17 for punching the yarn binding hole A in the booklet S fixed on the booklet transport table 12, the operation of the booklet transport table 12, and the like. A unit 18 is provided.

As shown in FIG. 2, the elevating support mechanism 13 includes an elevating frame 13a erected on the apparatus main body 11, an elevating pedestal (chuck mounting portion) 13b that moves vertically in the elevating frame 13a, and an elevating pedestal 13b in the vertical direction. The elevating drive unit 13c is driven.
Further, a chuck rotating unit 14 is attached to the lift base 13b so as to exchange signals with the control unit 18 through a signal cable.
As shown in FIG. 3, reference numeral 22 denotes a work instruction lamp having a buzzer function that is red when operation is abnormal and is normally displayed in blue, and reference numeral 23 is a booklet placed on the booklet transport table 12. This is a booklet holder for fixing and holding S.

4A and 4B are detailed explanatory views of the chuck rotation unit in the yarn binding apparatus according to the embodiment. FIG. 4A is a top view, FIG. 4B is a side view, and FIG.
As shown in FIG. 4, the chuck rotating unit 14 includes a first needle chuck 15 and a second needle chuck for gripping two longitudinal directions of the yarn binding needle 20 at a predetermined interval (for example, 10 to 30 mm). 16 is attached so as to be able to advance and retract outward from the rotation surface of the chuck rotation unit 14.
The needle gripping operation and the chuck advance / retreat operation of the first and second needle chucks 15 and 16 are performed by a pneumatic actuator or an electric motor provided in the chuck rotating unit 14 via a control unit 18 connected by a signal cable. It is driven by a chuck driving unit (not shown).
Note that the operator can also perform control by directly operating the start button 18a provided on the control panel.

Next, a method for manufacturing a booklet using the yarn binding apparatus 10 will be described.
The present invention provides a bookbinding method that is cheaper and more homogenous than a booklet manufactured by a conventional yarn binding process by mechanizing part or all of the yarn binding process to which a Japanese binding method is applied. it can.

  First, the booklet S collated with a plurality of bookbinding sheets is placed on the booklet transport table 12. The bookbinding paper is preferably a high-quality paper excellent in water resistance and abrasion resistance, but the paper type is not limited here.

As shown in FIG. 5, a plurality of drills 17 a of the drilling machine 17 are penetrated along the back edge (ST) of the booklet S placed on the booklet transport table 12 (four places in FIG. 5). The thread binding hole A is drilled.
The formation positions and intervals of the yarn binding holes A are appropriately determined in consideration of making it easy to see texts and pictures printed near the binding portion side of the page paper that is spread when the booklet is spread.

Next, the yarn binding process of inserting the binding thread T into the yarn binding hole A formed in the booklet S using the yarn binding apparatus 10 will be described.
In the yarn binding step, the binding thread T is inserted into a plurality of yarn binding holes A formed through the front and back surfaces of the booklet S so as to sew in a zigzag manner from the front side to the back side and from the back side to the front side. Bind the thread.
Thus, by passing the binding thread T through the thread binding hole A formed in the back side edge ST of the booklet S like a Japanese binding, decorativeness and durability of traditional texture, spreadability It can be finished into a booklet with excellent quality.

Here, FIG. 10 is an explanatory view of a conventional manual binding operation, in which a plurality of yarn binding holes A are formed in the booklet S before binding using a hole opening jig, and the booklet S is placed on a table. Set so that the short side and the long side are aligned (FIGS. 10A and 10B).
Next, the operation of sequentially inserting the binding thread T into the thread binding hole A of the aligned booklet S is repeated (FIG. 10C).
In this way, by binding the final ends of the binding thread T, the booklet that has been bound is completed.

Next, the yarn binding process using the yarn binding apparatus 10 of the present invention will be described in detail with reference to the operation explanatory diagram of the chuck rotating unit of FIG.
The yarn binding apparatus 10 according to the present invention mechanically executes part or all of the conventional Japanese binding operation described in FIG. That is, in the yarn binding step using the yarn binding apparatus 10 of the present invention, first, a booklet transport table on which a booklet S having a yarn binding hole A formed along the back side edge ST is placed. 12 is moved horizontally and positioned so that the yarn binding hole A through which the yarn is first passed is directly below the yarn binding needle 20 (FIG. 6A). For example, it is programmed in advance how many mm the position of the thread binding hole A through which the thread passes first is from the left side (in the drawing) of the booklet S.
In other words, the number of yarn binding holes, positions, hole diameters, etc. are taught in data for drilling, and the taught yarn binding holes are sequentially passed through the yarn. At this time, the yarn binding needle 20 is held at two upper and lower portions by the first needle chuck 15 and the second needle chuck 16 provided at predetermined intervals.

  Next, as shown in FIG. 6B (the following (b) to (g) are side views similar to (a)), the needle gripping of the second needle chuck 16 on the side close to the booklet S is performed. The state is released and retracted (retracted) so as to be drawn toward the chuck rotating unit 14. That is, the position where the second needle chuck 16 does not interfere with the booklet S during the downward vertical movement operation of the chuck rotating unit 14 (operation for passing the tip end side of the yarn binding needle 20 through the booklet S: (c)). , The tip of the yarn binding needle 20 held by the chuck rotating unit 14 is inserted into the yarn binding hole A of the booklet S by lowering the lifting platform 13b of the lifting support mechanism 13. Stop at an approximately intermediate position (FIG. 6C).

  Subsequently, as shown in FIG. 6 (d), the second needle chuck 16 in the retracted position is advanced outward (to the left in the drawing) to grip the lower portion of the yarn binding needle 20.

Next, the needle gripping of the first needle chuck 15 positioned on the front side (upper side in FIG. 6) is maintained while the second needle chuck 16 positioned on the back side (lower side in FIG. 6) of the booklet S is maintained in the needle gripping state. The state is released and retracted to the retracted position (retracted) (rightward in FIG. 6 (e)).
Then, the yarn binding needle 20 whose lower portion is gripped by the second needle chuck 16 is further vertically moved downward so as to be pulled out from the yarn binding hole A (FIG. 6 (f1)) .

Thereafter, on the back side of the booklet S, the first needle chuck 15 in the retracted position is advanced, and is pulled out from the thread binding hole A and the binding thread T is passed through the thread hole 21 at the needle proximal end. The upper part of the needle 20 is gripped (FIG. 6 (f2)).
Then, an operation is performed to reverse the top and bottom of the yarn binding needle 20 that is pulled out from the yarn binding hole A and passed through the yarn hole 21 at the needle base end. That is, the chuck rotating unit 14 is rotated 180 degrees .
At the same time, the booklet transport table 12 is moved horizontally to position the thread binding hole A ′ to be inserted next directly below the front end of the thread binding needle 20 (FIG. 6G).

The needle standby position in FIG. 6G is in a state where the top and bottom of the yarn binding needle 20 are inverted with respect to the state in FIG.
The process after FIG.6 (g) becomes an operation | movement which repeats the process similar to the yarn binding process from Fig.6 (a) from a back side (lower side).
As described above, by repeating the yarn binding process shown in FIGS. 6A to 6G, a Japanese-binding booklet can be manufactured. That is, the booklet binding process is executed by repeating the vertical movement and rotation of the chuck rotating unit 14.

7 to 9 illustrate the relationship between the vertical movement and rotation of the chuck rotating unit 14 and the horizontal transfer operation of the booklet transport table 12 in the yarn binding process described with reference to FIG. FIG. 7 is an explanatory diagram, and a series of yarn binding steps (numerals 1 to 33 shown in the upper part of the drawing) will be described with reference to FIGS.
As shown in the drawing, the base end of the binding thread T is locked to the body portion of the chuck rotating unit 14, and the looseness and entanglement of the binding thread T are adjusted according to the looseness state of the binding thread T and the like.
For example, the looseness or entanglement of the binding thread T may be adjusted by appropriately rotating the chuck rotation unit 14.

7 to 9, the booklet transport table 12 is moved horizontally, the lifting support mechanism 13 is moved up and down, the chuck rotating unit 14 is rotated, the first needle chuck 15 and the The needle gripping operation and advance / retreat operation of the two-needle chuck 16 can be program-controlled by the control unit 18.
If necessary, a part or all of them can be performed stepwise by manual operation with an operator.

As shown in FIGS. 7 to 9, the first needle chuck 15 and the second needle chuck 16 that hold the yarn binding needle 20 are located between the front side and the back side of the booklet S placed on the booklet transport table 12. The booklet S is inserted in a zigzag manner through the plurality of thread binding holes A drilled on the back side of the booklet S by performing an operation of rotating at the top and bottom dead center. The body S is configured to perform a yarn binding operation.
Such operations are also associated with the horizontal transfer positioning operation of the booklet transport table 12 and the like.

  Here, the binding yarn T used for the yarn binding is, for example, hemp yarn or cotton yarn as a general binding yarn, or synthetic resin yarn made of a fluorine resin such as polyamide resin or polyvinylidene fluoride, a polyester resin, a polyolefin resin, or the like. Etc. In particular, it is preferable to use a nylon (registered trademark) having a stretchability of 50% or more and a diameter of 0.3 to 1 mm.

  Next, a procedure for binding the booklet S that has been bound as described above to upper bookbinding will be described. The facing is pasted on both sides of the booklet S after the binding. The book is folded in half, and one end is attached to a thick cover or back cover, and the other end is attached to the front or back of the booklet S to complete the upper bookbinding.

Although one embodiment according to the present invention has been described above, the technical scope of the present invention is not limited to the scope described in the above embodiment. It is obvious that embodiments obtained by adding various technical changes or improvements to the above-described embodiments also belong to the technical scope of the present invention.
For example, the binding thread is not limited to those made of a synthetic resin such as polyamide as described above, but in order to facilitate the development of the upper bookbinding and to make the upper bookbinding excellent in spread, It is desirable to have excellent strength, wear resistance, tear resistance, and the like.
Further, the yarn binding method of the present embodiment is a simplified method of the fourth binding, which is a Japanese binding method, and there is no risk of the printing paper dropping off from the bookbinding main body, and the yarn hole is not damaged. .
In addition, as the binding yarn used for the yarn binding, for example, a colored binding yarn such as red or green can be used to improve the appearance of the upper bookbinding.

  The present invention provides a yarn binding apparatus capable of performing bookbinding mechanically by applying a Japanese binding method, and can bind an upper bookbinding having high durability and decoration at low cost. Industrial applicability is extremely high.

DESCRIPTION OF SYMBOLS 10 Yarn binding apparatus of Example 1 11 Apparatus main body 12 Booklet conveyance table 13 Elevating support mechanism 13a Elevating frame 13b Elevating base (chuck mounting part)
13c Lifting drive unit 14 Chuck rotating unit 15 First needle chuck 16 Second needle chuck 17 Drilling machine 17a Drill 18 Control unit 18a Start button 20 Yarn binding needle 21 Yarn hole 22 Work instruction lamp 23 Booklet holder S Booklet A A Yarn binding Hole T Binding thread

Claims (1)

Drilling a plurality of yarn binding holes (A) along the back edge (ST) of the booklet (S) collating a plurality of bookbinding sheets;
The yarn binding operation is performed by a zigzag motion in which the yarn binding needle (20) through which the binding yarn (T) is passed is sequentially inserted from the front side or the back side of the booklet (S) along the adjacent yarn binding hole (A). A yarn binding device (10) to be executed,
A booklet transport table (12) for horizontally transferring the perforated yarn binding hole (A) to a set position of the yarn binding needle (20);
An elevating support mechanism (13) which is erected on the back side of the booklet transport table (12) and has a chuck mounting portion (13b) attached thereto so as to be movable up and down;
A chuck rotating unit (14) having a base portion rotatably attached to the chuck attaching portion (13b) and a tip end side of the chuck attaching portion (13b) facing the back side edge (ST) of the booklet (S);
A first needle chuck 15 and a second needle chuck 16 which are provided in the chuck rotating unit (14) so as to hold the yarn binding needle (20) and to freely advance and retract;
With
(A) The booklet conveying table (12) on which the booklet (S) having the yarn binding hole (A) is placed is horizontally transferred, and the yarn binding hole (A ) Is positioned directly below the needle (20) for yarn binding,
(B) releasing the needle gripping state of the second needle chuck (16) on the side close to the booklet S and retracting it toward the chuck rotating unit (14);
(C) After retracting the second needle chuck (16) to a position where it does not interfere with the booklet (S),
By lowering the chuck mounting portion (13b) of the lifting support mechanism (13),
The tip end side of the yarn binding needle (20) held by the chuck rotating unit (14) is inserted into the yarn binding hole (A) of the booklet (S) and stopped at a substantially intermediate position thereof,
(D) The second needle chuck (16) in the retracted position is advanced to grip the lower part of the yarn binding needle (20),
(E) The needle gripping state of the first needle chuck (15) positioned on the front side is released while the second needle chuck (16) positioned on the back side of the booklet (S) is maintained in the needle gripping state. Back to the retracted position,
(F1) The yarn binding needle (20), the lower part of which is gripped by the second needle chuck (16), is further vertically moved so as to be pulled out from the yarn binding hole A,
(F2) On the back side of the booklet (S),
Advance the first needle chuck (15) in the retracted position,
Gripping the upper portion of the yarn binding needle (20) drawn from the yarn binding hole (A) and passed through the yarn thread (T) at the needle proximal end of the yarn binding thread (T);
(G) rotating the chuck rotation unit (14) 180 degrees so as to invert the top and bottom of the yarn binding needle (20);
The booklet transport table (12) is horizontally transferred, and the thread binding hole (A ′) to be inserted next is positioned immediately below the tip of the thread binding needle (20),
By repeating the same steps as the yarn binding steps (a) to (g) from the back side,
A yarn-bound bookbinding apparatus characterized in that a booklet that has been bound is manufactured .