WO2009096645A1

WO2009096645A1 - Manufacture apparatus for binder spring

Info

Publication number: WO2009096645A1
Application number: PCT/KR2008/005127
Authority: WO
Inventors: Ki Jong Lee
Original assignee: Pyung Hwa Industrial Co., Ltd.
Priority date: 2008-01-29
Filing date: 2008-09-01
Publication date: 2009-08-06
Also published as: KR100863054B1

Abstract

An apparatus for manufacturing a binder spring is disclosed. The apparatus comprises a work table; a supply part for supplying a material; a band forming part for bending the material at a regular interval in a zigzag shape and forming a band member; a transportation part for transporting the formed band member; and a pressing part for pressing and bending the transported band member for thereby forming the same having a 3-shaped cross section. Since the binder spring can be manufactured in series, so it is possible to significantly reduce a work time and to enhance productivity.

Description

MANUFACTURE APPARATUS FOR BINDER SPRING

Technical Field

[I] The present invention relates to an apparatus for manufacturing a binder spring, and in particular to an apparatus for manufacturing a binder spring in series used for binding a notebook or a diary.

[2]

Background Art [3] A binder spring is generally used for binding notebook sheets or album sheets and is formed in a coil shape or a semicircular shape. [4]

Disclosure of Invention

Technical Problem

[5] Accordingly, it is an object of the present invention to provide an apparatus for manufacturing a binder spring which makes it possible to decrease a work time and enhance a productivity in such a manner that a steel wire is bent in a zigzag shape for thereby forming a band member, and the both ends and intermediate portion of a band member are bent for thereby forming a binder spring in series which has a 3-shaped cross section.

[6]

Technical Solution

[7] To achieve the above objects, there is provided an apparatus for manufacturing a binder spring which comprises a work table; a supply part for supplying a material; a band forming part for bending the material at a regular interval in a zigzag shape and forming a band member; a transportation part for transporting the formed band member; and a pressing part for pressing and bending the transported band member for thereby forming the same having a 3-shaped cross section.

[8]

Advantageous Effects

[9] In the present invention, since the binder spring can be manufactured in series, so it is possible to significantly reduce a work time and to enhance productivity.

[10]

Brief Description of Drawings

[I I] The present invention will become better understood with reference to the accompanying drawings which are given only by way of illustration and thus are not limitative of the present invention, wherein; [12] Figure 1 is a front view illustrating an apparatus for manufacturing a binder spring according to the present invention; [13] Figure 2 is a rear view illustrating an apparatus for manufacturing a binder spring according to the present invention; [14] Figure 3 is a plane view illustrating an apparatus for manufacturing a binder spring according to the present invention; [15] Figure 4 is an enlarged side view illustrating a band forming part according to the present invention; [16] Figures 5 through 9 are views illustrating a band bending member according to the present invention; [17] Figure 10 is an enlarged view illustrating a pressing device according to the present invention; [18] Figure 11 is an enlarged view illustrating a transportation part according to the present invention; [19] Figure 12 is an enlarged view illustrating a both-ends bending member according to the present invention; [20] Figure 13 is a view illustrating another example of a pressing part according to the present invention; [21] Figures 14 through 17 are views illustrating an operation of a band forming part according to the present invention; [22] Figures 18 through 20 are views illustrating an operation of a transportation part according to the present invention; [23] Figures 21 through 24 are views illustrating an operation of a pressing part according to the present invention; and [24] Figures 25 through 31 are detailed views illustrating an operation of a pressing part according to the present invention. [25]

Best Mode for Carrying out the Invention [26] In the present invention, there is provided an apparatus for manufacturing a binder spring which comprises a work table; a supply part for supplying a material; a band forming part for bending the material at a regular interval in a zigzag shape and forming a band member; a transportation part for transporting the formed band member; and a pressing part for pressing and bending the transported band member for thereby forming the same having a 3-shaped cross section. [27]

Mode for the Invention [28] The preferred embodiments of the present invention will be described with reference to the accompanying drawings.

[29] Figure 1 is a front view illustrating an apparatus for manufacturing a binder spring according to the present invention. Figure 2 is a rear view illustrating an apparatus for manufacturing a binder spring according to the present invention. Figure 3 is a plane view illustrating an apparatus for manufacturing a binder spring according to the present invention.

[30] As shown in Figures 1 and 2, an apparatus for manufacturing a binder spring comprises a work table 2; a supply part 1 for supplying a material 100; a band forming part 4 for bending the material 100 at a regular interval in a zigzag shape and forming a band member; a transportation part 6 for transporting the formed band member 300; and a pressing part for pressing and bending the transported band member 300 for thereby forming the same having a 3-shaped cross section.

[31] Each construction will be described in detail.

[32] As shown in Figures 2 and 3, the supply part 1 includes a drum 10 on which the material 100 is wound, an ejection member 12 for ejecting the material 100, a plurality of pulleys 13 for guiding the ejection of the material, and a driving part 200 for driving the ejection member 12.

[33] The drum 10 is formed in a cylindrical shape with a steel wire being wound on its outer surface and is configured so that a member is rolled out in series toward an upper side.

[34] As shown in Figure 2, the ejection member 12 includes a shaft 121 which rotates by receiving a rotational force of the driving part 200, and a cam 122 which is axially engaged to the shaft 121 and includes a groove part 123 formed in its outer surface and is eccentrically engaged to the shaft 121 with the material 100 being wound on an outer surface of the cam 122.

[35] When the shaft 12 rotates, the cam 122 rotates at an eccentric angle while pulling the member 100, so the material 100 rolls out of the supply part 1.

[36] A tension member 11 is further installed between the pulley 13 and the ejection member 12 for allowing the material 100 have a tension.

[37] As shown in Figure 3, the tension member 11 is vertically and horizontally installed in a side surface of the plate member 110 and is formed of a plurality of alternately arranged bearing rollers 111. The tension member 11 is supported by means of an outer surface of each bearing roller 111 and is tensely pulled as the material 100 is transported while providing a tensional force.

[38] Figure 4 is an enlarged side view illustrating a band forming part according to the present invention.

[39] As shown in Figure 4, the band forming part 4 is configured to form a clip-shaped band member 300 by bending a straight material 100 in a zigzag shape. [40] The band forming member 4 includes a pulling bending member 41 which has a first bending pin 411 for first bending one side of the material 100, and a second bending pin 412 for second bending the other side of the material with a protrusion 413 being formed at the front ends of the first and second bending pins 411 and 412, respectively; an operation shaft rod 42 which is installed in the center of the pulling bending member 41 with a protrusion 421 being formed at a front end of the operation shaft rod 42 for engaging between the first and second bending parts 310 and 320; a band bending member 43 which has a first gear circular plate 431 installed at a front end of the pulling bending member 41, with a first protrusion 4311 being formed on an outer surface of the first gear circular plate 431, with the first bending part 310 being inserted into the first protrusion 4311, and a second gear circular plate 432 which is installed opposite to the first gear circular plate 431, with a second protrusion 4322 being formed on an outer surface of the second gear circular plate 432, with the second bending part 320 being inserted into the second protrusion 4322; and a driving part 200 which provides a rotational force of the pulling bending member 41 and a forward and backward vibration force of the operation shaft rod 42.

[41] The pulling bending member 41 includes a circular plate 410 rotating as a driving part 200 is engaged at its rear end, and first and second bending pins 411 and 412 symmetrically formed at a front side of the circular plate 410.

[42] A protrusion shoulder 413 is formed at the front ends of the first and second bending pins 411 and 412 for helping to bend a material.

[43] The operation shaft rod 42 is inserted into a center of the pulling bending member 41 and includes a cam 422 rotating by receiving a driving force of the driving part 200. The operation shaft rod 42 is horizontally installed on an outer surface of the cam casing 424 having a roller 423 which contacts with the cam 422 in the interior.

[44] The roller 423 can be periodically pushed by means of the rotation of the cam 422, and the cam casing 424 moves backward and forward in a horizontal direction, and the operation shaft rod 42 can move forward and backward.

[45] When the operation shaft rod 42 moves forward, the protrusion 421 of the front end hooks an intermediate portion of the material 100 arranged between the first and second bending pins 411 and 412.

[46] The cam casing 424 is equipped with an elastic device(not shown) at its outer side for thereby maintaining itself in position.

[47] The first and second gear circular plates 431 and 432 of the band bending member 43 are configured to control an interval between them, which leads to matching with the width of the binder spring.

[48] Figures 5 through 9 are views illustrating a band bending member according to the present invention. [49] As shown in Figures 5 through 8, the first gear circular plate 431 is inserted into the first gear shaft 4321 which rotates as being engaged with the driving gear 436 which is connected with the driving part 200 and rotates and can move leftward and rightward for adjusting the width based on the size of the binder spring to be manufactured.

[50] A tooth 4313 is formed in an outer surface of the first gear shaft 4312 in a horizontal direction, and a spiral part 4314 is formed in the other surface, and a circular plate shaped finishing member 438 is engaged at one end of the same using a bolt 439.

[51] When the first gear shaft 4312 is rotated in a clockwise direction or a counterclockwise direction after loosening the bolt 439 of the finishing member 438, the spiral part 4314 rotates in a clockwise direction or a counterclockwise direction by means of an engagement with the base 1000, so that the first gear shaft 4312 can move backward and forward for thereby adjusting the width based on the size of the product.

[52] The second gear circular plate 432 is engaged to on end of the second gear shaft 4323 in which a plurality of teeth 4324 are formed in one outer surface, and an inclination adjusting part X is installed in the other side for adjusting the inclination of the second gear circular plate 432.

[53] The inclination adjusting part X includes a first support member which is supported by means of an outer surface of a base 1000 and has an arc shaped part formed in its one side surface; a bracket 435 which is engaged to one side of the first support member 434, with a front end of the bracket being connected with the second gear circular plate 432; a second support member 433 which is closely contacted with the curved part of the first support member 434 and has a curved part of the same curvature formed on an outer surface; and an adjusting bolt 4331 which is engaged to an elongated hole 4332 formed in a curved part of the second support member 433, with a front end of the adjusting bolt 4331 being connected with the first support member 434.

[54] When the second support member 433 is rotated upward and downward along an elongated hole 4332 after the adjusting bolt 4331 is loosened, the second support member 433 and the bracket 435 rotate upward and downward, so the second gear circular plate 432 engaged with the bracket 435 slightly moves upward and downward for thereby adjusting the inclination.

[55] As shown in Figure 9, the second gear circular plate 432 can be set as being inclined.

[56] The inclination is adjusted for allowing the band member 300 to escape as the interval between the first and second gear circular plates 431 and 432 is narrowed after the band member 300 first formed in a zigzag shape is rotated half a turn or a 3/4 turn.

[57] A pressing device 5 is further installed in one side of the first gear circular plate 431 for pushing the first bent part 310 of the material 100 into the first protrusion 4311.

[58] The pressing device 5 is bent by means of the first bending pin 411 and pushes the first bending part 310 of a clip shaped material toward the first gear circular plate 431 and inserts the same into the first protrusion 4311.

[59] Figure 10 is an enlarged view illustrating the pressing device according to the present invention.

[60] As shown in Figure 10, the pressing device 5 includes a cam casing 53 which moves forward and backward as the cam 52 contacts with an inner surface, with the cam 52 eccentrically engaged to the rotary shaft 51 being formed in the interior of the cam casing 53, a shaft rod 54 which is horizontally installed at a front end of the cam casing 53, and a pressing piece 55 of which an upper end is hinged to the shaft rod 54, and a lower end contacts with an outer surface of the first gear circular plate 431.

[61] When the cam 52 rotates, the cam casing 53 and the shaft rod 54 horizontally move forward and backward, and the pressing piece 55 rotates forward and backward by means of the hinged portion. When it moves backward, the first bent part 310 of the material 100 is moved backward and is inserted into the first protrusion 4311. The above operation will be described later.

[62] The first and second protrusions 4311 and 4322 are alternate-installed in the first and second gear circular plates 431 and 432. The material 100 is first and second bent in a zigzag shape and is hooked alternately with respect to the first and second protrusions 4311 and 4322.

[63] Preferably, the first protrusion 4311 is smaller than the second dimension 4322.

[64] Figure 11 is an enlarged view illustrating the transportation part of the present invention.

[65] As shown in Figure 11, the transportation part 6 includes a first cam 61 which rotates by receiving a driving force of the driving part 200; a first shaft 62 of which one end is axially engaged with a first leader 621 which contacts with the first cam 61; a first elastic control member 63 which is installed at an intermediate portion of the first shaft 62 for limiting a rotation angle; a vertical leg 64 which is axially engaged to the other end of the first shaft 62 and rotates in a normal or reverse direction in cooperation with the rotation of the first shaft 62 within a limited angle; a first connection member 65 which is horizontally hinged to a lower side of the vertical leg 64 and moves forward and backward; a second connection member 66 which is horizontally hinged to the first connection member 65 and moves forward and backward; and a crawl member 67 which is engaged to an end of the second connection member 66 and pulls the band member 300 in a forward move mode.

[66] The first elastic control member 63 includes a support member 631 horizontally installed in the first shaft 62, and a first spring 632 which is vertically installed so as to downwardly pull the support member 631.

[67] The crawl member 67 is a piece member of which a plurality of teeth 672 inserted into the gap of the band member 300 are formed in its lower side.

[68] As shown in Figure 11, the support member 631 is horizontally installed in a left side, and the first leader 621 is installed in a lower side at an inclined angle.

[69] When the first cam 61 pushes the first leader 621 from the right side to the left side, the support member 631 rotates upward, so the vertical leg 64 and the first and second connection members 65 and 66 are lifted as the crawl member 67 is pulled backward.

[70] When the first cam 61 is escaped from the first leader 621, the vertical leg 64, the first and second connection members 65 and 66 and the crawl member 67 move forward and then downward by means of the force that the first spring 632 of the first elastic control member 63 pulls.

[71] An upward move assistant member is further installed for preventing the band member 300 from being pulled when the first and second connection members 65 and 66 of the transportation part 6 move backward.

[72] The upward move assistant member includes a second cam 71 which is installed on the same shaft as the first cam 61 and rotates; a second shaft 72 to which a second leader 77 contacting with the second cam 71 is axially engaged; a second elastic control member 73 for providing a force so as to horizontally pull the second shaft 72; a second horizontal support member 74 which is horizontally engaged to an end of the second shaft 72; a second bracket 75 which is vertically hinged to an end of the second horizontal support member 74; and a support member 76 which is installed in a lower end of the second bracket 75 and supports the lower sides of the first and second connection members 65 and 66.

[73] The pressing part 8 includes a jig 82 which is installed so that the band member 300 transported from the transportation part 60 is placed on an upper surface of the same; a support member which moves downward from an upper side of the jig 82 and fixedly presses the band member 300; a both-ends bending part 84 which presses downwardly the both ends of the band member 300 fixed in the jig 82 and bends the same; and a center bending part 86 which has a protrusion part 862 in a lower surface of the center bending part for pressing a center portion of the band member 300 of which both ends are bent.

[74] The support member includes a third cam 831 which is installed on the same shaft as the second cam 71; a third leader 832 which is installed in contact with the third cam 831; a third shaft 834 in which the third leader 832 is axially installed, and the third elastic control member 835 is installed; a third horizontal support member 631 which is horizontally installed at one end of the third shaft 834; a third bracket 837 which is vertically hinged to the third horizontal support member 631; and a pressing block 838 which is installed in a lower side of the third bracket 837 and has a plurality of protruded teeth 839 in its lower surface. [75] The third elastic control member 835 includes a third support member 8352 which is axially installed in the third shaft 834 and is vertically installed in an upward direction, and a third spring 8354 which is installed horizontally with respect to an end of the third support member 8352.

[76] As shown in Figure 12, the jig 82 is formed as two rods are connection in parallel, of which the cross section is a oo-shape with a concave groove being formed in its center portion, and with a curved shape being downwardly formed in its both ends.

[77] Since the pressing block 838 is detachable, its size can be selected depending on the size of the band member 300.

[78] Figure 12 is an enlarged view illustrating a both-ends bending member according to the present invention.

[79] As shown in Figure 12, the both-ends bending part 84 includes a lower block 841 which presses downward the both ends of the band member fixed to the jig 82 and bends the same; an operation piece 842 of which one end is hinged, and an upper center is hinged to a lower side of the lower block 841, with a vertical spring 843 being installed in the other end of the operation piece, and with a roller 844 being axially installed in a lower center of the same; a fourth cam 845 which moves the operation piece 842 upward or downward by upwardly pushing the roller 844 periodically while being rotated; and a driving part 200 which rotates the fourth cam 845.

[80] As shown in Figure 12, the lower block 841 includes a bending groove 8412 into which the band member 300 is inserted, and a shoulder 8413 is formed in an upper side of the bending groove 8412 for a bending work in an inward direction.

[81] Figure 13 is a view illustrating another example of a pressing part according to the present invention.

[82] As shown in Figure 13, the pressing block 838 might be installed in multiple numbers with their horizontal widths being different. When the band member 300 is pressed and formed, a transformation might occur when instantly bending the both ends of the same. So, it is preferred that the first bending work is performed with a wider width, and the second bending work is performed with a relatively narrower width. The pressing block 838 is formed of first and second pressing blocks 838-1 and 838-2 having different horizontal widths.

[83] The first and second pressing blocks 838-1 and 838-2 are engaged by means of bolts.

They might be exchanged in the course of maintenance or size changes.

[84] The jig 82, the support member, the both-ends bending member 84, and the center bending member 86, which form the pressing part 8, might be formed in a set, of which each element might be exchanged depending on the size of the product.

[85] The lower block 841 might be installed in multiple numbers with the horizontal, of which the horizontal widths of the bending grooves 8412 being different from each other. As described earlier in the descriptions of the pressing block 838, when the both ends of the band member 300 are bent in multiple numbers, a transformation might occur. So, it is preferred that the band member is first bent with a wider width, and then it is second bent with a relatively narrower width. The lower block 841 is formed of first and second lower blocks 841-1 and 841-2 having different widths, [86] As shown in Figure 13, the center bending member 86 includes a protrusion 862 which is formed in its lower surface and corresponds to the center of the band member

300. The center bending member is integrally connected with one side of the lower block 841 and is parallel with respect to one side of the support member. [87] The center bending member 86 is detachably engaged by means of a bolt, and its size can be selected depending on the size of the band member 300. [88] The operation of the present invention will be described.

[89] When the driving part 200 is operated, the cam 122 of the ejection member 12 is rotated by means of the rotational force. The material 100 wound on the drum 10 is rolled out and is transferred along the pulleys 13. [90] The material 100 keeps a certain tension while passing through the tensional member

11. [91] The material 100 is supplied to the band forming part 4 and is bent by means of the first and second bending pins 411 and 412 as the circular plate 410 of the pulling bending member 41 rotates, and is pulled in series. [92] Figures 14 through 17 are views illustrating an operation of a band forming part according to the present invention. [93] As the circular plate 410 rotates, the material 100 is first bent(as shown in Figure 14) with one side of the material 100 being supported by means of the first bending pin

411. [94] When the first bending part 310 of the bent material 100 is positioned on the first protrusion 4311 of the first gear circular plate 431, the pressing piece 55 of the pressing device 5 moves backward, and the first bending part 310 is inserted into the first protrusion 4311 (as shown in Figure 15). [95] As the operation shaft rod 42 moves forward, the protrusion 421 of the front end presses the second bending part 320 of the bent material 100 and is inserted into the second protrusion 4322 of the second gear circular plate 432. [96] The center portion of the material 100 suspending between the first and second bending pins 411 and 412 is supported by means of the protrusion 421 and is bent by means of the rotation of the circular plate 410 for thereby forming a second bending part 320 as shown in Figure 16. [97] As the circular plate 410 further rotates, the material 100 is second bent by means of the protrusion 421a and reaches where the first bending pin 411 is first positioned as shown in Figure 17.

[98] The second bending part 320 of the material 100 allows the pressing piece 55 of the pressing device 5 to be inserted into the first protrusion 431 l(as shown in Figure 15).

[99] The above operations are sequentially performed.

[100] The material 100 supplied to the band forming part 4 is bent in a zigzag shape for thereby forming a band member 300.

[101] When the first and second gear circular plates 431 and 432 rotate half a round or a 3/4 turn, the interval of the first and second gear circular plates 431 and 432 is narrowed, so the band member 300 is escaped and discharged.

[102] The discharged band member is supplied to the transportation part.

[103] Figures 18 through 20 are views illustrating an operation of the transportation part according to the present invention.

[104] The first cap 61 rotates by receiving a rotational force of the driving part 200, and the first leader 621 is pushed, and the support member 631 rotates upward, so the vertical leg 64, the first and second connection members 65 and 66, and the crawl member 67 are pulled backward and are lifted(Figure 18).

[105] At the same time, the upward move assistant member operates. The second cam 71 rotates, and the second leader 77 is pushed, and the second shaft 72 a little rotates in the clockwise direction, and the second support member 731 rotates leftward, and the second spring 732 is elongated, and the second horizontal support member 74 rotates upward, and the second bracket 75 moves upward. As the support 76 moves upward, the first and second connection members 65 and 66, which are pulled backward, are lifted, so that the band member 300 is not interfered with the crawl member 67 (Figure 19).

[106] When the first cam 61 escapes from the first leader 621, the vertical leg 64, the first and second connection members 65 and 66 and the crawl member 67 move forward in the downward direction by means of the force that the first spring 632 of the first elastic control member 63 pulls. At this time, the tooth 672 of the crawl member 67 hooks the band member 300, so the pressing member 8 moves forward(Figure 20).

[107] The both ends and the center portion of the band member 300, which have reached the pressing part 80, are bent, respectively.

[108] Figures 21 through 24 are views illustrating an operation of the pressing part according to the present invention.

[109] When the third cam 831 rotates, and the third leader 832 is pushed downward, the third shaft 834 a little rotates in the counterclockwise direction, and the third support member 8352 rotates in the counterclockwise direction, and the third spring 8354 is elongated. The third horizontal support member 631 rotates upward, and the third bracket 837 and the pressing block 838 move upward(Figure 21). [110] When the third cam 831 is spaced apart from the third leader 832, the third support member 8392 rotates in the counterclockwise direction by means of a contraction force of the third spring 8354, and the third horizontal support member 631 rotates downward, and the third bracket 837 and the pressing block 838 move downward, so the protrusion tooth 839 presses the band member 300(Figure 22).

[I l l] The both-ends bending member 84 and the center bending member 86 move downward for thereby bending the both ends and the center portion of the band member 300, respectively.

[112] As the driving part 200 rotates, the fourth cam 845 rotates, and the roller 844 is pushed. The operation piece 842 rotates upward, and the vertical spring 843 is elongated, and the lower block 841 moves upward(Figure 23).

[113] At this time, the center bending member 86 moves upward along with the lower block 841.

[114] When the fourth cam 845 is escaped from the roller 844, the operation piece 842 rotates downward, and the vertical spring 843 is contracted, and the lower block 841 is pulled downward and moves downward. At this time, the shoulder 8413 formed in the bending groove 8412 presses downward the both ends of the band member 300 suspended by means of the jig 82 for thereby bending the same(Figure 24).

[115] At the same time, as the center bending member 86 moves downward, the protrusion part 862 presses the center portion of the band member 300 for thereby bending the same, so a binder spring having a 3-shaped cross section is formed.

[116] Figures 25 through 31 are views illustrating an operation of the pressing part according to the present invention.

[117] In a state that both the first pressing block 838-1 and the first lower block 841-1 have moved upward, the band member 300 is placed on the jig 82(Figure 25).

[118] The first pressing block 838-1 moves downward and presses the center portion of the band member 300(Figure 26).

[119] The first lower block 838-1 moves downward and bends downward the both ends of the band member 300, so the first pressing block 838-1 moves upward(Figure 27).

[120] The band member 300 is first formed in a upside down U-shape.

[121] In a state that the second pressing block 838-2 and the second lower block 841-2 have moved upward, the first formed band member 300 is placed on the jig 82(Figure 28).

[122] The second pressing block 838-2 moves downward and presses the center portion of the first formed band member 300(Figure 29).

[123] The second lower block 841-2 moves downward and further bends the both ends of the first formed band member 300, and the second pressing block 838-2 moves upward(Figure 30). [124] The center bending member 86 moves downward, and the protrusion part 862 presses and bends the center portion of the band member 300, so a binder spring having a 3-shaped cross section is formed(Figure 31).

[125] A tooth gear 400 is axially engaged to an ejection side so that the formed binder can be easily ejected. The teeth of the tooth gear 400 are engaged with the binder spring and pulls the same, the ejection can be fast performed.

[126]

Industrial Applicability

[127] In the present invention, since the binder spring can be manufactured in series, so it is possible to significantly reduce a work time and to enhance productivity.

[128] As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described examples are not limited by any of the details of the foregoing description, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

[1] An apparatus for manufacturing a binder spring, comprising: a work table 2; a supply part 1 for supplying a material 100; a band forming part 4 for bending the material 100 at a regular interval in a zigzag shape and forming a band member; a transportation part 6 for transporting the formed band member 300; and a pressing part for pressing and bending the transported band member 300 for thereby forming the same having a 3-shaped cross section.

[2] The apparatus of claim 1, wherein said supply part 1 includes a drum 10 on which the material 100 is wound, an ejection means 12 for ejecting the material 100, a plurality of pulleys 13 for guiding the ejection of the material, and a driving part 200 for driving the ejection means 12.

[3] The apparatus of claim 2, wherein said ejection means 12 includes a shaft 121 which rotates by receiving a rotational force of the driving part 200, and a cam 122 which is axially engaged to the shaft 121 and includes a groove part 123 formed in its outer surface and is eccentrically engaged to the shaft 121 with the material 100 being wound on an outer surface of the cam 122.

[4] The apparatus of claim 2, wherein a tensional means 11 is further installed between the pulley 13 and the ejection means 12 for keeping the material 100 tensional, and said tensional means 11 is formed of a plurality of bearing rollers 111 which are vertically and horizontally installed in a side surface of the plate material 110 with the bearing rollers 111 being alternately arranged with respect to each other.

[5] The apparatus of claim 1, wherein said band forming member 4 includes: a pulling bending member 41 which has a first bending pin 411 for first bending one side of the material 100, and a second bending pin 412 for second bending the other side of the material with a protrusion 413 being formed at the front ends of the first and second bending pins 411 and 412, respectively; an operation shaft rod 42 which is installed in the center of the pulling bending member 41 with a protrusion 421 being formed at a front end of the operation shaft rod 42 for engaging between the first and second bending parts 310 and 320; a band bending member 43 which has a first gear circular plate 431 installed at a front end of the pulling bending member 41, with a first protrusion 4311 being formed on an outer surface of the first gear circular plate 431, with the first bending part 310 being inserted into the first protrusion 4311, and a second gear circular plate 432 which is installed opposite to the first gear circular plate 431, with a second protrusion 4322 being formed on an outer surface of the second gear circular plate 432, with the second bending part 320 being inserted into the second protrusion 4322; and a driving part 200 which provides a rotational force of the pulling bending member 41 and a forward and backward vibration force of the operation shaft rod 42.

[6] The apparatus of claim 5, wherein said operation shaft rod 42 includes a cam 422 rotating by receiving a driving force of the driving part 200 and is installed horizontally with respect to the cam casing 424 in which the roller 423 contacting with the cam 422 is installed as being installed outside the cam 422.

[7] The apparatus of claim 5, wherein a pressing device 5 is further installed in one side of the first gear circular plate 431 of the band bending member 43 for pushing the first bending part 310 of the material 100 into the first protrusion 4311.

[8] The apparatus of claim 7, wherein said pressing device 5 includes a cam casing

53 which moves forward and backward as the cam 52 contacts with an inner surface, with the cam 52 eccentrically engaged to the rotary shaft 51 being formed in the interior of the cam casing 53, a shaft rod 54 which is horizontally installed at a front end of the cam casing 53, and a pressing piece 55 of which an upper end is hinged to the shaft rod 54, and a lower end contacts with an outer surface of the first gear circular plate 431.

[9] The apparatus of claim 5, wherein the intervals of said first and second gear circular plates 431 and 432 of the band bending member 43 can be adjustable.

[10] The apparatus of claim 9, wherein said first gear circular plate 431 includes a tooth part 4313 formed in one outer side in a vertical direction, and a spiral part 4313 formed in the other side of the same and is movable as a first gear shaft 4312 engaged with a circular plate-shaped finishing member 438 using a bolt 439 is inserted into one end of the same.

[11] The apparatus of claim 9, wherein said second gear circular plate 432 is engaged to on end of the second gear shaft 4323 in which a plurality of teeth 4324 are formed in one outer surface, and an inclination adjusting means X is installed in the other side for adjusting the inclination of the second gear circular plate 432.

[12] The apparatus of claim 11, wherein said inclination adjusting means X includes: a first support member which is supported by means of an outer surface of a base 1000 and has an arc shaped part formed in its one side surface; a bracket 435 which is engaged to one side of the first support member 434, with a front end of the bracket being connected with the second gear circular plate 432; a second support member 433 which is closely contacted with the curved part of the first support member 434 and has a curved part of the same curvature formed on an outer surface; and an adjusting bolt 4331 which is engaged to an elongated hole 4332 formed in a curved part of the second support member 433, with a front end of the adjusting bolt 4331 being connected with the first support member 434. [13] The apparatus of claim 5, wherein said first and second gear circular plates 431 and 432 are installed so that the first and second protrusions 4311 and 4322 are alternately arranged from each other. [14] The apparatus of claim 13, wherein said first gear circular plate 431 is vertically installed, and said second gear circular plate 432 is installed at a predetermined inclined angle. [15] The apparatus of claim 1, wherein said transportation part 6 includes: a first cam 61 which rotates by receiving a driving force of the driving part 200; a first shaft 62 of which one end is axially engaged with a first leader 621 which contacts with the first cam 61; a first elastic control means 63 which is installed at an intermediate portion of the first shaft 62 for limiting a rotation angle; a vertical leg 64 which is axially engaged to the other end of the first shaft 62 and rotates in a normal or reverse direction in cooperation with the rotation of the first shaft 62 within a limited angle; a first connection member 65 which is horizontally hinged to a lower side of the vertical leg 64 and moves forward and backward; a second connection member 66 which is horizontally hinged to the first connection member 65 and moves forward and backward; and a crawl member 67 which is engaged to an end of the second connection member

66 and pulls the band member 300 in a forward move mode. [16] The apparatus of claim 15, further comprising an upward move assistant means for lifting the band member 300 when the first and second connection members

65 and 66 of the transportation part 6 move backward, for thereby preventing the band member 300 from being pulled. [17] The apparatus of claim 16, wherein said upward move assistant means includes: a second cam 71 which is installed on the same shaft as the first cam 61 and rotates; a second shaft 72 to which a second leader 77 contacting with the second cam 71 is axially engaged; a second elastic control means 73 for providing a force so as to horizontally pull the second shaft 72; a second horizontal support member 74 which is horizontally engaged to an end of the second shaft 72; a second bracket 75 which is vertically hinged to an end of the second horizontal support member 74; and a support member 76 which is installed in a lower end of the second bracket 75 and supports the lower sides of the first and second connection members 65 and

66. [18] The apparatus of claim 1, wherein said pressing part 8 includes: a jig 82 which is installed so that the band member 300 transported from the transportation part 60 is placed on an upper surface of the same; a support means which moves downward from an upper side of the jig 82 and fixedly presses the band member 300; a both-ends bending means 84 which presses downwardly the both ends of the band member 300 fixed in the jig 82 and bends the same; and a center bending means 86 which has a protrusion part 862 in a lower surface of the center bending means for pressing a center portion of the band member 300 of which both ends are bent. [19] The apparatus of claim 18, wherein said support means includes: a third cam 831 which is installed on the same shaft as the second cam 71; a third leader 832 which is installed in contact with the third cam 831; a third shaft 834 in which the third leader 832 is axially installed, and the third elastic control means 835 is installed; a third horizontal support member 631 which is horizontally installed at one end of the third shaft 834; a third bracket 837 which is vertically hinged to the third horizontal support member 631 ; and a pressing block 838 which is installed in a lower side of the third bracket 837 and has a plurality of protruded teeth 839 in its lower surface. [20] The apparatus of claim 19, wherein said third elastic control means 835 includes a third support member 8352 which is axially installed in the third shaft 834 and is vertically installed in an upward direction, and a third spring 8354 which is installed horizontally with respect to an end of the third support member 8352. [21] The apparatus of claim 19, wherein said jig 82 includes a concave groove formed in an upper center portion of the same, with the both ends of the jig being formed in a curves shape in a downward direction. [22] The apparatus of claim 18, wherein said both-ends bending means 84 includes: a lower block 841 which presses downward the both ends of the band member fixed to the jig 82 and bends the same; an operation piece 842 of which one end is hinged, and an upper center is hinged to a lower side of the lower block 841, with a vertical spring 843 being installed in the other end of the operation piece, and with a roller 844 being axially installed in a lower center of the same; a fourth cam 845 which moves the operation piece 842 upward or downward by upwardly pushing the roller 844 periodically while being rotated; and a driving part 200 which rotates the fourth cam 845. [23] The apparatus of claim 22, wherein said lower block 841 includes a bending groove 8412 into which the band member 300 is inserted, and a shoulder 8413 is formed in an upper side of the bending groove 8412 for a bending work in an inward direction. [24] The apparatus of claim 18, wherein said support means, said both-ends bending means 84 and center bending means 86 of the pressing part 8 are detachably installed.