KR101951077B1 - Spring molding equipment - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a spring forming device, and more particularly, to a spring forming device capable of automatically changing a size of a spring to form a spring for fixing a note or a binder, And a spring forming device.
According to the present invention, when a spring for fixing a note or a binder is formed, it is possible to change the size of the spring freely, to maintain a uniform diameter, and to automatically mold the spring so as to have a constant tension.

Description

Spring molding equipment

The present invention relates to a spring forming apparatus, and more particularly, to a spring forming apparatus capable of changing a size of a spring when forming a spring for fixing a note or a binder, forming a spring having a uniform tension, The present invention relates to a spring forming apparatus.

The notes are made up of various notes that are easy to write according to the subject for the student who is studying. In order to make the handwriting regular, the notes that are usually used only, the notes that are blank for use as a driving range, or the notes that are used to fit the height of the English alphabet. So that it can be conveniently handwritten. In the case of junno note, since the size of the letter is larger in the lower grades, the line spacing of the junno notes is made larger as the lower grades are used.

Methods of binding such notes include various methods such as binding in a yarn, fixing the iron core with a stapler, applying an adhesive, and fixing with a spring. There is a disadvantage that when you tie one side to another, it tears like the other side when you fix it with an iron core using a spacer. Occurs. The above-mentioned method of applying the adhesive to the adhesive is not suitable for remaining torn debris when one side is torn.

The spring knot is formed by inserting a plurality of small holes in the left or upper side of the paper and inserting a spring. The thickness of the note varies with the number of sheets used in the note, so the spring used now also changes. Note that when you use a spring, you do not have any debris left when you tear one side of the notebook. It is also convenient to fold in half.

Such a spring note is manufactured through a spring note manufacturing apparatus. The spring note making apparatus is a method for binding a paper such as a large number of printed matter, paper, or the like, a hole is formed in a paper laminated on one side, .

The above-mentioned ring is often used as a bookbinding method using a metal material made of a single ring or a twin ring or a synthetic resin spring. In other words, a plurality of binding holes are formed in a bookbinding area in order to book a note, a calendar and the like in a book form, and a single ring or a twin ring spring is inserted therebetween so that a single sheet of the note is fastened by a single or twin spring It is a binding method. At this time, since the metal ring has one or two rows of metal springs inserted into the respective fastening holes and each of the rings is held in an open state by being inserted into the fastening hole, the bookbinding process that is inserted into the fastening hole The ring is formed of metal, so that it is bent or crushed during use, so that it is excellent in stretchability and deformation is formed of synthetic resin less than metal ring A single ring is mainly used to bind and use paper of notebook or various printed materials.

The spring notes produced by a single ring made of such synthetic resin material have spring diameters of 9, 10, 11, 12, 13, 14, 16, 18, 20, 22 and 25 mm, It is necessary to form a spring in accordance with this standard. The conventional spring forming apparatus has a problem in that it is very difficult to easily produce various kinds of springs, in particular, springs having a certain thickness in one apparatus .

Korea Patent Registration No. 10-0333131 (Apr. 8, 2002) 'Spring Molding Machine' Korea Patent Registration No. 10-0863054 (Jun. 10, 2008) 'Binder spring forming device' Korean Patent Registration No. 10-0974991 (Aug. 3, 2010) 'Wire Spring Forming Device'

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a method of forming a spring for fixing a note or a binder, The present invention has been made to solve the above-mentioned problems occurring in the prior art.

In order to achieve the above-mentioned object, the present invention is characterized by comprising: a base plate supported by a plurality of fixed frames; A fixing plate mounted on the upper surface of the base plate; A heater rotatably supported by a pair of support brackets fixed on the base plate at an interval from the fixing plate and plasticizing a spring material as a material for forming the spring; A pulley assembly fixed on the heater shaft of the heater and integrally formed with the heater sprocket and the heater pulley; A drive motor fixed on the base plate with a gap therebetween and having a motor pulley fixed to the motor shaft; A belt connecting the motor pulley and the heater pulley; A rotating shaft rotatably supported at a distance from the heater, a driven sprocket fixed to one end thereof, and a drive pulley fixed to the other end; A chain connecting the heater sprocket and the driven sprocket; A spring molding machine comprising a plurality of roll assemblies horizontally installed on the stationary plate stand and coiling a spring material passed through the heater to form a spring; Wherein the plurality of rolls constituting the roll assembly of the drive pulley and the spring molding machine are simultaneously connected to the connection belt so that the spring molding machine is configured to be formed into a spring shape while rotating at a synchronous speed with the heater do.

In this case, the pivot shaft is fixed to the guide cylinder having a predetermined length, and the guide cylinder is integrally fixed to the upper end of the fixed post fixed vertically on the base plate.

Further, a loosening roll holder is further provided on a part of the fixing frame which is the lower space of the base plate, and the loosening roll with the spring material is detachably mounted on the loosening roll holder.

The lower tension adjusting roll may be rotatably fixed to a lower portion of the vertical table, a guide rail may be provided at an interval from the lower tension adjusting roll, Wherein the upper tension adjusting roll is connected to the upper tension adjusting roll so as to be controlled by the tension adjusting spring and the upper end of the tension adjusting spring is fixed on the spring fixing member fixed to the upper end of the vertical table, So that the tension of the spring member can be adjusted.

In addition, the spring molding machine includes a fixed block fixed to one surface of the fixed plate; An axial ring having a cylindrical shape is integrally fixed to the axial fixed block; A drive shaft is fitted in the braking ring; A first aperture variable guide is fixed to one side of the fixed plate at an interval from the fixed ring block; Wherein the first aperture variable guide is formed in a shape such that a part of the circles of different diameters are partially overlapped with each other at intervals of 120 degrees with respect to a circle having a predetermined aperture diameter; The drive shaft penetrates the center of the circle of the first diameter variable guide among the holes, and three spring processing roll axes are respectively fitted to the outer peripheries of the holes formed at intervals of 120 degrees. A spring working roll having a spiral groove formed on a circumferential surface thereof; A driven pulley is fixed to an end of each spring working roll shaft passing through the first aperture variable guide; And an opposite end is provided with a fixed guide and is configured to rotatably support it; It is also characterized by a connecting belt with three driven pulleys and a drive pulley.

In addition, the spring working roll is provided with a shaft retaining ring so that it can be tightened toward the drive shaft, and on one side of the first diameter variable guide, The first and second fixing nuts are respectively fastened to the first and second fixing nuts so that the first and second adjusting bolts are tightened or loosened, It is also characterized by being configured to open.

In addition, a comb-shaped guide having a 'C' shape is detachably attached to an arbitrary portion of the spring working rolls which are in contact with each other, and a plurality of combs corresponding to the respective helical grooves protrude from the comb- And is also disposed closer to the point where the spring processing roll meets.

According to the present invention, when a spring for fixing a note or a binder is formed, it is possible to change the size of the spring freely, to maintain a uniform diameter, and to automatically mold the spring so as to have a constant tension.

1 is an exemplary perspective view of a spring forming apparatus according to the present invention.
2 is an exemplary front view of a spring forming apparatus according to the present invention.
3 is an exemplary rear view of a spring forming apparatus according to the present invention.
4 is an exemplary view showing a state in which a part of the spring forming apparatus according to the present invention is excluded.
FIG. 5 is an exemplary view showing a main part of a spring forming apparatus according to the present invention. FIG.
FIG. 6 is an explanatory diagram showing a part of FIG. 5 removed. FIG.
7 is an enlarged photograph of a substantial part related to FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Before describing the present invention, the following specific structural or functional descriptions are merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms, And should not be construed as limited to the embodiments described herein.

In addition, since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

As shown in FIGS. 1 to 3, the spring forming apparatus according to the present invention is installed so that a spring formed by a note or a spring formed at the front end of a binder fixing board is inserted into a note or a binder to continuously make spring notes .

However, such a notebook or a binder holder is not a main constituent of the present invention and is omitted. In the present invention, only the contents related to a device for forming a spring will be described.

The spring forming apparatus according to the present invention includes a stationary frame (100).

The fixed frame 100 includes a plurality of support rods fixed vertically at a predetermined height from the bottom surface.

The base plate 110 is horizontally fixed to the upper end of the fixed frame 100.

In addition, a release roll rest 120, which is located in the lower space of the base plate 110 and is fixed to a part of the fixing frame 100, is provided.

4) in the form of a string is wound on a unrolling roll RL (see FIG. 4), and the unrolling rolls ST (see FIG. 4) RL may be inserted into the cradle 120 to be repaired. In some cases, a power source such as a motor may be further installed on one side of the unloading roll holder 120 to be able to release the power.

The vertical plate 130 is vertically fixed to one side edge of the upper surface of the base plate 110 and the stationary plate 140 having a rectangular shape in a diagonal direction with respect to the vertical plate 130 is fixed .

4, a pair of tension adjusting rolls are vertically spaced apart from each other. The lower tension adjusting roll 150a is perpendicular to the vertical bar 130 And the upper tension adjusting roll 150b is rotatably fixed to the upper tension adjusting roll 150b so as to be slidable along the guide rail 152 fixed to the plate surface of the vertical table 130, (154) is assembled.

The lower end of the tension adjusting spring 156 is fixed to the upper end of the roll block 154 and the upper end of the tension adjusting spring 156 is fixed to the spring fixing hole 158 protruding from the upper end of the vertical block 130 .

Accordingly, the spring material ST released from the unwinding roll RL is wound by alternately winding the lower tension adjusting roll 150a and the upper tension adjusting roll 150b, and when the tension is increased, the upper tension adjusting roll 150b descends, The tension applied to the ash ST is controlled and when the tension is reduced, the upper tension control roll 150b rises to automatically adjust the tension applied to the spring ST, To be supplied.

At this time, the function of adjusting the tension is the tension adjusting spring 156, and the tension adjusting spring 156 is stretched and compressed while moving the upper tension adjusting roll 150b.

In addition, the sprung material ST whose tension is controlled is configured to be upwardly fed to the molding machine 300 through the heater 200 having a cylindrical shape.

If necessary, a string guide 160 may be further installed between the lower tension adjusting roll 150a and the lower tension adjusting roll 150b so as to be able to rotate while being elastically flowed, So that the tension can be adjusted more precisely.

In addition, in the illustrated example, the tension adjusting spring 156 is installed at the upper end of the vertical bar 130, but may be installed at the upper end, the middle portion, or the lower end of the vertical bar 130 Of course.

1 and 4, the heater 200 is rotatably supported by a pair of support brackets 210. A heater sprocket 210 is disposed at one end of the heater rotation shaft 220 of the heater 200, The pulley assembly 230 having the heater 232 and the heater pulley 234 integrated therewith is fixed.

A driving motor fixing table 240 is disposed on one side of the base plate 110. A driving motor 242 is mounted on the driving motor fixing table 240. The motor rotation shaft of the driving motor 242 is connected to a motor pulley And the motor pulley 244 and the heater pulley 234 are configured to be able to transmit power by means of a belt V. [

 Therefore, when the driving motor 242 is driven, the driving force is transmitted to the heater pulley 234 through the belt V, so that the heater 200 is rotated in synchronization with the speed of the driving motor 242.

At this time, the heater 200 is a heater formed in a cylindrical shape, and a heating element is built therein. The heater 200 is configured to move while the spring material ST is wound in a half-rolled manner so that the spring material ST moves The heater 200 receives the heat for the time it is in contact with the heater 200 and is plasticized and maintained in a state that is easy to be molded.

That is, winding the coil spring ST according to the present invention to fix the shape is considered to be a kind of plastic deformation.

A fixing post 250 is vertically fixed to the upper surface of the base plate 110 on the side adjacent to the heater 200 and a guide cylinder 252 is integrally fixed vertically to the upper end of the fixing post 250 And a driven sprocket 256 is fixed to one end of the exposed pivot shaft 254 in a state where both ends of the pivot shaft 254 (see FIG. 2) are exposed across the center of the guide cylinder 252, And the drive pulley 258 is fixed to the other end.

In addition, the driven sprocket 256 is connected to the heater sprocket 232 through the chain C to receive power.

As a result, the driving pulley 258 generates power for rotating the molding machine 300. As a result, the rotation speed of the heater 200 and the rotation speed of the molding machine 300 In other words, the coiling speed) is synchronized and rotated at the same speed, so that the uniformity is maintained.

5 and FIG. 6, the molding machine 300 includes an annular fixing block 310 fixed to one side of the fixing plate 140 (see FIG. 1).

A cylindrical shaft 312 is integrally fixed to the axial fixed block 310 and a drive shaft 314 is inserted into the shaft 312. The drive shaft 314 is a rod- And one end thereof is fixed so as not to rotate within the axial ring 312 in a state of passing through the axial ring 312.

The first variable diameter guide 320 is fixed to one side of the fixed plate 140 in parallel with the fixed block 310 by a distance from the fixed block 310.

Here, the first aperture variable guide 320 is formed with holes 322 in such a manner that circles having different diameters are partially overlapped with each other at intervals of 120 degrees with respect to a circle having a predetermined aperture.

At this time, the drive shaft 314 passes through the center of the circle of the first diameter variable guide 320 of the holes 322, and three spring processing roll axes 330 are inserted.

The spring processing roll shaft 330 is formed with a spring working roll 332 having a spiral groove on its circumferential surface.

In addition, each end of the spring processing roll shaft 330 is installed to be fixed to the shaft fixing ring 340 when the shaft passes through the first diameter variable guide 320, One end of which is hingedly fixed to one side of the first aperture variable guide 320.

Thus, the three spring-loaded rolls 332 can be tightened toward the drive shaft 340, which is understandable if it is thought to be similar to a triangular lock-up scheme for securing a drill bit in an electric drill .

In order to adjust the movement of the shaft fixing ring 340, the first and second fixing nuts 320 and the first and second fixing nuts 320, N1 and N2 are fixed by welding and the first and second adjusting bolts B1 and B2 are bolted to the first and second fixing nuts N1 and N2, respectively.

Accordingly, when the first and second adjusting bolts B1 and B2 are tightened, the first and second adjusting bolts B1 and B2 push the shaft fixing ring 340 in contact therewith so that the spring working roll 332 is brought into close contact with the driving shaft 314.

The reason for this adjustment is that the spring's loop diameter needs to be large or small, which is variable in relation to the size of the spring, and by then replacing the drive shaft 340 with a larger or smaller diameter And to adjust the degree of tightness of the spring working roll 332 closely attached thereto.

In this case, it is possible to easily adjust the aperture by fixing the innermost one of the three axis fixing rings 340, that is, the one which is hard to work with the hand, at a certain angle and moving only the remaining two axis fixing rings.

A driven pulley PUL is fixed to an end of each spring processing roll shaft 330 passing through the first variable diameter guide 320 and a fixed guide FGR is provided at the opposite end to support the spring constantly. One end of the fixed guide FGR is bolted to the second variable diameter guide 320 'shown in FIG. 1, and the second variable diameter guide 320' is fixed to the first variable diameter guide 320 are fixed to the fixing plate 140 by bolts. However, in FIG. 5 and FIG. 6, the second variable diameter guide 320 'is omitted for convenience of description and shown only in FIG.

In addition, three spring working roll shafts 330 are bundled at the rear side passing through the second aperture variable guide 320 ', so that tension is always applied toward the center without being disturbed. Bending is particularly preferred. This minimizes the flow during the spring machining, so that the diameter of the spring does not change and a high-quality spring can be made without a certain defect.

In addition, since the spiral groove between the spring working rolls 332 surrounds the driving shaft 314 at the center and three spring working rolls 332 surround the periphery of the spindle groove, the raised spring material ST covers the spiral groove , Which forms a loop in the form of a spring. Sometimes a failure occurs while entering the spiral groove once passed.

In order to prevent this, in the present invention, a comb-shaped guide 400 having a 'C' shape is detachably attached, and a plurality of combs 410 corresponding to the respective helical grooves are protruded from the comb- It is possible to constitute such that the above-described defects do not occur and can always be formed while accurately forming a spiral by arranging the springs close to the point where the spring processing rolls 332 meet.

In this case, the comb-teeth guide 400 may be detachably fixed on the fixing plate 140 through a separate bracket.

As shown in the sample photograph of Fig. 7, the pulling springs SPR always pull the guide pulley GRP so that the driven pulley PUL does not open but always has a tight force, The driving pulley 258, the guide pulley GRP and the three driven pulleys PUL are wound around and connected to transmit power.

Since the power of the driving pulley 258 fixed to the rotating shaft 254 is transmitted by the connecting belt V2 as described above, the molding machine 300 is rotatable at the same speed as the driving motor 242 .

As described above, in the spring forming apparatus according to the present invention, the spring material ST released from the unwinding roll RL is heated while being heated by the heater 200 while moving while maintaining a proper tension, and is plasticized do.

Then, it is introduced into the molding machine 200 rotating at a synchronous speed with the heater 200, and automatically coiled to form a loop, thereby enabling mass production.

In addition, in order to change the diameter of the loop of the spring, the drive shaft 314, which is the central axis of the molding machine 200, is simply replaced with a different size, and then a plurality of spring processing rolls 332), it is possible to vary the diameter of the loop easily, and thus it is possible to produce various kinds of springs.

100: fixed frame 200: heater
300: molding machine 400: comb guide

Claims (7)

A base plate supported by a plurality of fixed frames;
A fixing plate mounted on the upper surface of the base plate;
A heater rotatably supported by a pair of support brackets fixed on the base plate at an interval from the fixing plate and plasticizing a spring material as a material for forming the spring;
A pulley assembly fixed on the heater shaft of the heater and integrally formed with the heater sprocket and the heater pulley;
A drive motor fixed on the base plate with a gap therebetween and having a motor pulley fixed to the motor shaft;
A belt connecting the motor pulley and the heater pulley;
A rotating shaft rotatably supported at a distance from the heater, a driven sprocket fixed to one end thereof, and a drive pulley fixed to the other end;
A chain connecting the heater sprocket and the driven sprocket;
A spring molding machine comprising a plurality of roll assemblies horizontally installed on the stationary plate stand and coiling a spring material passed through the heater to form a spring;
Wherein the plurality of rolls constituting the roll assembly of the drive pulley and the spring molding machine are simultaneously connected to the connection belt so that the spring molding machine is configured to be formed into a spring shape while rotating at a synchronous speed with the heater.
The method according to claim 1,
Wherein the pivot shaft is fixed to a guide cylinder having a predetermined length and the guide cylinder is integrally fixed to an upper end of a fixing post vertically fixed on the base plate.
The method according to claim 1,
Wherein a release roll holder is further provided on a part of the fixed frame which is a space below the base plate, and a release roll having a spring material is detachably mounted on the release roll holder.
The method according to claim 1,
A vertical bar is further provided on one side of the upper surface of the base plate, a lower tension adjusting roll is rotatably fixed to a lower portion of the vertical bar, a guide rail is provided at an interval from the lower tension adjusting roll, The upper tension adjusting roll is movably connected by a tension adjusting spring. The upper end of the tension adjusting spring is engaged with a spring fixing member fixed to the upper end of the vertical bar, Thereby adjusting the tension of the spring member.
The method according to claim 1,
The spring molding machine includes a fixed block fixed to one surface of the fixed plate; An axial ring having a cylindrical shape is integrally fixed to the axial fixed block; A drive shaft is fitted in the braking ring; A first aperture variable guide is fixed to one side of the fixed plate at an interval from the fixed ring block; Wherein the first aperture variable guide is formed in a shape such that a part of the circles of different diameters are partially overlapped with each other at intervals of 120 degrees with respect to a circle having a predetermined aperture diameter; The drive shaft penetrates the center of the circle of the first diameter variable guide among the holes, and three spring processing roll axes are respectively fitted to the outer peripheries of the holes formed at intervals of 120 degrees. A spring working roll having a spiral groove formed on a circumferential surface thereof; A driven pulley is fixed to an end of each spring working roll shaft passing through the first aperture variable guide; And an opposite end is provided with a fixed guide and is configured to rotatably support it; Wherein the three driven pulleys and the drive pulleys are connected by a connecting belt.
The method of claim 5,
Wherein the spring processing roll is provided with a shaft fixing ring so as to be folded toward the driving shaft and on one side of the first diameter variable guide, And the first and second adjusting bolts are respectively fastened to the first and second fixing nuts so that the first and second adjusting bolts can be tightened or loosened, And the spring forming device.
The method of claim 5,
A plurality of combs corresponding to the respective spiral grooves are projected from the comb-teeth guide so as to be engaged with at least two spring processes And the rolls are arranged close to a point where they meet.

Images