KR101565158B1

KR101565158B1 - Non-prickle type cutting method of twin ring for binding

Info

Publication number: KR101565158B1
Application number: KR1020150063116A
Authority: KR
Inventors: 신현
Original assignee: 신현
Priority date: 2015-05-06
Filing date: 2015-05-06
Publication date: 2015-11-02

Abstract

The present invention relates to a cutting method of a twin ring for binding sheets (18) having a punch hole (19) such as a calendar, a note, etc. with a twin ring which is a continuous wire forming of a plurality of repeated ring units (11). In the cutting of the twin ring, the cutting is not a simple cutting in a transverse direction, but cutting a connecting portion of the ring units (11) in a longitudinal direction, thus not forming any protruding portion (17) around a cutting area. Through the present invention, handling, safety-use, and a convenience of a twin ring applied sheets (18) can significantly be improved.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a twin ring-

The present invention relates to a method of binding a twin ring, which is a continuous wire rod in which a plurality of rings 11 are repeatedly formed, to a punch hole 19 drilled in a binding material 18 to bind a calendar, , A method of cutting a twin ring at the end of the binding material 18 is not simply performed in the direction transverse to the twin ring but the connecting portion between the foil 11 is cut in the longitudinal direction, So that no protruding portion 17 is formed.

A twin ring, also referred to as a double wire ring or a double ring, is formed by a pair of annular foils 11, each of which is formed by curving a metallic wire into a circular shape, A plurality of the flanges 11 connected to each other and connected to the canyon section 12 are connected to each other at equal intervals and connected to both ends of the flange 14 by bending And is used for bookbinding such as a knot or a calender together with a coil spring.

The twin ring has a shape similar to that of a general coil spring, but it may be misunderstood that the binding method between the binding material 18 and the wire rod is also similar, The twin ring is formed so that the canopy portion 12 constituting the pair of the flanges 11 in a state in which the annulus 11 is enlarged in diameter is connected to the binding material 18 in the punch hole 19 and then presses the flange 11 so that the canyon portion 12 and the bending portion 13 at the end of the straight portion 14 are brought close to each other.

Therefore, the twin ring can perform a quick operation as compared with other bookbinding means, and it is also possible to provide a twin ring in which the spacing of the punch holes 19, the pitch between the flanges 11, the thickness of the binding material 18, It is possible to change the bookbinding-related standard relatively freely, and it is possible to flexibly cope with the production of a small amount of bookbinding material (18) as well as a small amount of bookbinding material (18), and it is applied to various fields such as bookbinding of calendar calenders, notebooks and various printed materials .

The twin ring binding can be performed by an automated bookbinding apparatus as shown in FIG. 2, in which a twin ring of a large diameter, which is continuously supplied, is fed while being coupled to the guide rod 20, The twin ring canopy portion 12 is inserted into the punch hole 19 formed in the binding material 18 in the binding material 18 and the twin ring on the side of the binding material 18 is cut, 11) and the lower end of the annulus (11) below the upper portion (14).

That is, as in the excerpt shown at the upper left of FIG. 2, the twin ring continuation in the state in which the ring 11 is enlarged so that the twin ring canyons 12 and the straight sections 14 are mutually spaced apart in the transverse plane The twin ring in the diametrically expanded state is engaged with the guide rod 20 by the drive means such as the conveying wheel 91 in the state where the guide rod 20 is in a state of being in the enlarged state, The bookbinding material 18 is continuously fed at the same speed as the twin ring so that the twin ring is transferred at a point slightly spaced from the distal end of the guide rod 20 or the distal end of the guide rod 20, Is inserted into the punch hole 19 of the binding material 18 and the excess twin ring outside the binding material 18 is cut by the cutter 92 periodically lifted and lowered, 18 and the twin ring are conveyed to the pressing portion 93 so that the upper end of the annulus 11 on the upper side of the canyon portion 12 and the annulus 11 on the lower side of the lower portion 14, So that the bent portions 13 on both side ends of the straight portion 14 and the canyons 12 are brought into a reduced diameter state in which they are close to each other, The bookbinding is completed, and the bookbinding material 18 as shown in Fig. 1 is completed.

As shown in FIG. 2, the apparatus for performing twin ring binding according to the related art includes a catching means for conveying the bookbinding article 18 horizontally in the drawing, a pushing and pulling means, A feed wheel 91 and an induction rod 20 for continuously feeding and guiding the same in the same direction and a cutter 92 for cutting and removing an excess twin ring between the binding material 18 and the binding material 18 continuously fed And a crimping portion 93 for compressing and shrinking the twin ring, and a variety of devices and parts are organically combined. A prior art related to such twin ring binding is Patent No. 790222. [

In the conventional twin ring binding including the patent No. 790222, as shown in Fig. 2 described above, in cutting the excess twin ring and machining the end on the side of the binding material 18, the twin ring binding is performed in a direction perpendicular to the feeding direction of the twin ring The cutter 92 to be raised and lowered is provided below the twin ring so that a simple cut is made with respect to the straight line 14 connecting the pair of the flanges 11 and therefore, A sharp protrusion 17 must be formed at the distal end.

That is, a sharp metal wire protruding outside the side end of the binding material 18 is formed during the simple cutting of the straight portion 14, which is a risk factor for use of the binding material 18.

In particular, the twin ring binding is applied to calenders or notebooks frequently used in everyday life, and because of the sharp protruding portions 17 which are inevitably formed in the prior art, the user's body, It is a problem that damage is frequent.

It is possible to consider post-processing such as further folding the twin ring end where the protruding portion 17 is formed. However, this may cause serious problems such as lowering the productivity of the binding material 18 and raising the production cost I have.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a loop 11, A pair of twin rings are connected to each other by a pair of straight portions 14 and are arranged at regular intervals and both ends of the pair of straight portions 14 are formed with bent portions 13 connecting the straight portion 14 and the ring 11, A method for cutting a twin ring on both ends of a bound material (18) bound to a bound material (18), characterized in that the end bit (41) forming a cutting line in a direction parallel to the center axis of the twin ring So that the wire between the bent portion 13 at both ends of the straight portion 14 and the lower end of the circular portion 11 is cut off.

With the present invention, safety and convenience in handling and use of the twin ring-applied binding material 18 can be remarkably improved.

In addition, by preventing the integral protrusion from being formed on both sides of the bookbinding material 18, it is possible to obtain an effect of enhancing the beauty of the finished bookbinding material 18.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an illustration of a prior art twin ring binding material
Fig. 2 is an explanatory diagram of a conventional twin ring bookbinding apparatus operating method
3 is an illustration of a twin ring binding apparatus for carrying out the present invention
Figure 4 is an exploded perspective view of the guide rod and end bit of the device of Figure 3;
Figure 5 is a comparison of the cutting site of the present invention and the prior art
6 is a perspective view of a bookbinding apparatus to which the present invention is applied

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a diagram illustrating a configuration of a bookbinding apparatus according to an embodiment of the present invention. Referring to FIG. 3, the twin ring binding apparatus 20 includes a guide ring 20, And an end bit 41 which is raised and lowered in a direction orthogonal to the twin ring is provided under the twin ring.

The end bit 41 is a cutting means made of tool steel or the like. In the apparatus embodiment shown in FIG. 3, a fluid pressure cylinder such as a pneumatic cylinder is used as the driving means on which the bit 41 is mounted, In addition, various driving means such as a link connected to a separate power source or a linear motor may be applied.

The present invention is characterized in that a pair of circular rods 11 in which a wire rod is curved in a circular shape are connected to each other by a canyon portion 12 and a plurality of a plurality of canisters 11 connected by a canyon portion 12 are connected by a rectilinear portion 14 A twin ring having bending portions 13 formed at both ends of the rectilinear section 14 and connecting the rectilinear section 14 and the ring 11 to each other is connected to a plurality of punch holes 19 in a perforated binding material 18 A method of cutting an excess twin ring at both ends of a binding material 18 is provided. As shown in Fig. 4, an end bit 41 is vertically moved up and down below the distal end of the guide rod 20, The twin ring is cut as the terminal bit 41 is raised in a state where the twin ring is coupled to the twin ring 20.

As shown in FIG. 3, the twin rings continuously supplied are connected to the guide rods 20 in a state in which the annular canopy portion 12 and the rectilinear section 14 are spaced apart from each other, , The cross-sectional outline of the induction rod 20 is preferably formed so as to conform to the inner circumferential surface shape of the annular ring 11 of the twin ring in the expanded state, and as in the apparatus embodiment shown in Figs. It is preferable that the distal end portion of the guide rod 20 into which the annulus 11 continuously enters during the transferring process is sharply diametrically processed so that the twin ring can be smoothly transferred.

3 and 4, a twin ring in a diametrically enlarged state coupled to the guide rod 20 is formed such that the straight portion 14 is located below the canyon portion 12 and between the straight portion 14 and the canyon portion 12 The openings of the twin rings are coupled to the guide rods 20 so that they are located on the backside of the guide rods 20 and are connected to the guide rods 20 so that the raised terminal bits 41 can be received, A rear cutting portion 22 is formed.

As described above, according to the present invention, the end bit 41 forming the cutting line in the longitudinal direction of the twin ring, that is, the direction parallel to the twin ring central axis is reciprocated in the direction orthogonal to the central axis of the twin ring, So that the protruding portions 17 on both side ends of the binding material 18 which were inevitably formed when cutting the twin ring according to the prior art are not integrally formed can do.

The twin ring longitudinal cutting according to the present invention has a direction parallel to the guide rods 20 and has a longitudinal axis that forms a cutting line having an extension of a distance between the both end bent portions 13 of the twin ring 14, Wherein the longitudinal direction is a direction parallel to the central axis of the twin ring connecting the center of the annulus 11 and parallel to the guide rod 20, ) And a direction crossing the twin ring.

That is, as shown in Fig. 5 in which the cut surface formed by the present invention and the cut surface formed by the conventional technique are simultaneously displayed on the same twin ring, the cut surface according to the prior art indicated by the imaginary line in the drawing is formed on the center axis of the twin ring The cutting face formed by the present invention is formed in a direction parallel to the center axis of the twin ring, and a cutting plane parallel to the center axis is formed in the direction perpendicular to the twin ring, 6, and the enlarged portion in the ellipse in Fig. 6, all of the outer projecting portions 17 are formed at the twin ring cut portion on the side of the bound material 18 It is not.

11: Flange
12: the canyons
13:
14:
17:
18: Binding material
19: Punch hole
20: Induction rod
22: rear cutting part
41:
91: Feed wheel
92: Cutter
93:

Claims

A pair of circular rods 11 having a curved linear shape are connected to each other by the canyon portion 12 and a plurality of the ropes 11 connected to the canyon portion 12 are connected to each other by the rectilinear portion 14, A twin ring is formed at both ends of the rectilinear section 14 and is formed with a bent portion 13 for connecting the straight portion 14 and the flange 11 to the punched hole 18 of the punch hole 19, ) In the method for cutting twin rings at both ends,
An end bit 41 forming a cutting line in a direction parallel to the center axis of the twin ring is reciprocated in a direction orthogonal to the central axis of the twin ring,
So that the bending portion (13) at both ends of the weaving portion (14) and the lower end of the bending portion (11) are cut off.