JPH0687049A - Method and device for producing coupler assembly with head - Google Patents

Abstract

PURPOSE: To manufacture a headed coupler assembly by working a wire rod into a selected number of headed coupler assemblies and forming a head part at one end of each coupler. CONSTITUTION: In a first station, a plurality of non-headed couplers obtained by cutting a wire rod into a selected uniform length are mutually arranged in a row at an interval, are locked and are formed into a continuous band-like body 116 of the non-headed couplers 110. Next, in a second work station, a head part is formed at one end of each coupler of the continuous band-like body by a head forming means 26. The resultant body is carried, and the continuous band-like body of the headed coupler 10 is cut selectively to form a selected number of headed coupler assemblies. Thus, the coupling assemblies are manufactured by a continuous method from at least one wire rod.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a band or assembly of fasteners, and more particularly to a method and apparatus for making a headed fastener assembly locked in an aligned position.

[0002]

2. Description of the Related Art As tools are used to drive fasteners with rapid motion, tool load times are reduced and strip or coil fastener assemblies used in such tool magazines are used. Has become desirable. There are various shapes of the fittings and shapes of the fitting assembly. Each coupling of the coupling assembly typically has an end that is struck by a hammer, a shaft, and a tip that enters the workpiece. The tip of each connector that enters the workpiece is formed into a round shape, a diamond shape, a chisel shape, or an acute angle point. The shaft portion is an elongated portion that connects the end portion that is struck by the driving machine and the tip portion that enters the workpiece, and is fixed in parallel with each other in parallel. The end of each coupling driven by the driver is either the same shape as the shank or is deformed to provide a "head". In general, the term "headed" refers to a fitting with a deformed end that is struck by a hammer, and usually a "pin" that does not have a deformed end that is struck by a hammer.
It is used to distinguish it from the coupling known as. The head of the connector can be formed into various shapes, such as a "T" shape, a branch shape, a moon shape, a semicircular shape and a full circular shape. A full circular head typically has a diameter of at least twice the diameter of the shank and is commonly known as a "normal nail". Even if the head is formed in an irregular shape other than the circular shape, it is possible to assemble the fasteners in the adjacent shaft portions, so that even though more fasteners are provided in a given space, the head has a completely circular head Users prefer such nails in general bonding because they have greater holding power. Consider, for example, the case of joining two materials together, because of the ability of the shank to grasp the lower material and the ability of the head to prevent withdrawal through the upper material. The materials are bonded so as not to separate. In all other equivalent cases, the full-circular head has a larger surface area than other conventional shapes and therefore has a greater holding force.

A common method of assembling nails with a circular head is to first manufacture the nails in a nail manufacturing machine and then store the manufactured nails in a storage box. The nails are then removed from the storage box and placed in the groove so that the shafts are in parallel position and all heads are aligned in the same direction. The aligned nails are then transferred from the groove to the third device, which separates the shank into spaces with a predetermined space, and then connects them to each other by a tether. The assembled band of nails is then cut to the desired length and the left end of the assembly is formed or wound into a coil. The type of tether used is determined by whether the nail assembly is wound into a coil. Some types of materials used for anchoring are
Paper, adhesives, molded plastics, wires welded to the shank, preformed plastic strips and perforated steel strips. This or a modified version of the assembly provides an acceptable end product, but the manufacturing costs and the size of the device are considerable. Furthermore, if the nails have to be stored between the molding of the nails and the anchoring thereof, it is necessary to wash these nails before anchoring to ensure a proper bond. Therefore, it goes without saying that both the manufacturing cost and the space required for manufacturing the bonding zone are further required. Another drawback of the above-mentioned known method of assembling the tie band is the risk of mixing nail sizes and lengths. To change from one size nail to another, it is necessary to use all the nails in the device or remove the unlocked nails from the device. While care is usually taken during normal manufacture of nail bands or during the addition of nails to the device, inadvertently some nails may be intermingled. Mixing of different sized nails results in a defective product, or time to render the machine inoperable to remove different sized nails from the device.

There are bonding methods that require small nail head dimensions when nail holding power is not critical. These methods include the use of other decorative materials as well as final finishes around windows and doors. The most common type of coupler is one with a T-shaped head. This is because the heads of these nails are made small. The term T-shaped head means that the head is as thick as the shank in one direction and larger in the opposite direction than the shank. The T-shaped head causes the shank to be secured adjacent to each other by a method different from that described above used for nails having a full circular head. Typically, a predetermined number of wires are placed adjacent to each other and then bonded together by an adhesive or the like to form a band or band of wires. The strip is then cut to the desired length of fastener or the desired number of wires to form a clip or assembly. The assembly is then held firmly in the clamp-like device while the punch drives the clip along one cutting edge. The end of each wire is deformed into a rectangular shape whose short side is the same size as the diameter of the wire. The final product is US Pat. No. 3,095,588.
It is a fairly rigid assembly of T-shaped nails, known as scallop nails, as disclosed in US Pat. Another method of manufacturing a T-shaped head is to first form the head at the end of the band and then cut the band to the desired length to form a braid assembly.
That is. Paddles manufactured by either method are then punched from the tool by a magazine adapted to accommodate such an assembly. One of the biggest drawbacks to this method of making a fastener is that the number of fasteners in a clip or assembly is limited to the number of wires forming the clip. Another drawback is that as the number of wires forming the head in a single stroke increases,
The size of the device forming the head is very large. Another method of manufacturing a T-shaped nail assembly is to first manufacture the nails and then align the nails in the same manner as described for nails with circular heads.
This method is typically used for larger T-shaped nails. This is because it is difficult to align adjacent small size heads after the nail has been molded. Therefore, for smaller size T-shaped nails,
The formation of the head after the clips have been assembled is preferred.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved method of manufacturing a connector assembly from at least one wire wire in a continuous process. Another object of the present invention is to provide a method for forming various different types of heads of a fastener after the shafts are aligned and joined together to form a headed fastener assembly.
Yet another object of the present invention is to provide a fastener assembly arranged by an alignment method such that each shank is of uniform length. Yet a further object of the present invention is to provide a method of forming spaced fastener assemblies in such a way that the length of individual fasteners can be varied with minimal cost and lost manufacturing time. It is to be.

[0006]

SUMMARY OF THE INVENTION It is an object and advantage of the present invention to form a continuous strip of headless fasteners arranged in a parallel arrangement comprising a plurality of individual fasteners in accordance with the present invention. Achieved by The individual headless fasteners of the strip are arranged in an aligned arrangement or in parallel arrangement with equal spacing. Each headless fastener of the strip is machined to provide an end that is beaten by a driver, the end being deformed to form a headed fastener having increased holding power. The band of headed fasteners is then formed to provide an assembly of a predetermined number or length of fasteners. The improved fastener assembly is usually manufactured continuously by first forming the individual headless fasteners. First, at least one wire wire is supplied between a pair of wire straightening guides, and then the wire wire is supplied between a pair of feed wheels to manufacture each headless connector. When the feed wheel rotates, the feed wheel grips one or more wire wires and pulls the wire wires through the straightening guide. The straightened wire or wires are then cut into individual fasteners and transferred to a lock track. The locking track arranges the headless couplers in parallel alignment. The disposed headless fastener is then secured along the anchoring track to form a continuous strip of headless fastener. After the continuous strip of headless fastener is formed, the strip is transferred to a holding device. At least a portion of the retaining device is movable to introduce a portion of the strap of the headless connector into the retaining device and is configured to securely retain a portion of the headless connector between them. There is. One head is then formed by the reciprocating ram from the end of the part of the fitting held in the holding device. The reciprocating ram has at least 1 in each reciprocating cycle of the ram.
One, preferably two or more coupler ends are of deformable shape and size. The fasteners are ejected from between the retainers once the head is formed, and the continuous strip of headed fasteners then provides a predetermined length or number of headed fastener assemblies. It is formed.

An apparatus for producing an improved fitting assembly is
Usually, it is configured to include a plurality of devices that cooperatively manufacture the same fitting assembly. In particular, the manufacturing apparatus comprises an apparatus for manufacturing a headless connector by straightening at least one wire wire or returning the twist to supply the wire, and one or a plurality of wire wires after straightening the wire. A device for cutting individual headless fasteners into equal lengths, a device for transferring the headless fasteners in parallel alignment on a lock track at a first workstation, and the headless fasteners Device for locking the headless coupling by providing a locking material to the intermediate portion of both ends of the tool to form a continuous belt of the headless coupling, and a continuous band of the headless coupling. And a conveyer device for transferring to a clamping device disposed in the second workstation, the clamping device receiving a part of the belt-shaped body of the headless connector therein, And keep some of the headless fasteners firmly between them. To is configured so that at least a part is movable,
Furthermore, the manufacturing apparatus is configured to include a head forming device for forming a head from one end of the coupling tool while a part of the continuous strip of the coupling tool is held by a holding device. There is. The head former is shaped and dimensioned to deform at least one, and preferably two or more, coupler ends during each reciprocating cycle of the head former. Furthermore, in another embodiment of the present invention, the apparatus for manufacturing a coupling includes a device for cutting a continuous strip of the headed coupling with a predetermined length after discharging the coupling from the holding device.

[0008]

These and other objects of the invention will be apparent from the following description and the accompanying drawings. Like reference numerals in the drawings denote like elements. Referring to FIGS. 1 and 2, two different embodiments of a fitting assembly 11 made in accordance with the present invention are illustrated. An assembly 11 of headed fasteners 10 made in accordance with the present invention comprises a row of headed fasteners 10 locked in a parallel arrangement. Coupling 10
Are locked in parallel arrangement by locking materials (collating materials) 12 and 21. Coupling assembly 11, 1
Each of the headed couplers 1'is configured to include an end portion or a head portion 14 that is hammered by a hammer, a shaft portion 16, and a tip portion 18 that enters into the work. The head 14 can be offset or configured as a moon, semi-circle or full circle. The head 14 of the coupling is the coupling 10
After entering the work, the holding force is transmitted to the coupler 10. The shaft portion 16 is an elongated body portion of the connector 10,
The head portion 14 of the coupling tool 10 and the tip portion 18 for entering the work.
And are connected. The shank 16 typically has a circular cross section, but may have any cross sectional shape of a conventional wire formed by the feed wheel in which the shank is formed. The surface of the shank may be deformed into a wedge shape or the surface may be roughened in order to increase the holding force of the headed connector. The above variations are formed prior to use or by the wire feeding means 114 in practicing the invention, which is described in detail below. The tip portion 18 of the headed connector 10 that enters the work has a round shape,
It is shaped like a diamond, chisel, or an acute point to facilitate the entry of the fastener into the work piece. Referring to FIG. 1, the locking member 12 includes at least one wire wire member, and the wire wire member locks each coupling device in parallel with each other and separates the coupling devices from each other. Body 11
Make up. FIG. 2 illustrates an alternative embodiment of a tether used in the fastener assembly 11. In an alternative embodiment, the fasteners 10 are locked in a parallel arrangement using a plastic strip 21 that engages the shank 16 of each fastener 10.

Referring now to FIGS. 3, 4, 5, and 7, the apparatus for manufacturing a coupling according to the present invention comprises a cutting means 22 for manufacturing a headless coupling and a transfer means 23, 123. It comprises stopping means 24, conveyor means or device 25, head forming means 26 and cutting means 27.
The cutting means 22 according to the present invention is illustrated in FIGS. The cutting means 22 is typically a gear train (not shown).
It is driven by the electric motor 30 via. The gear train and the electric motor are mounted on the vertical support frames 32 and 132. The invention also includes the use of more than one wire 34 of wire. A device for feeding and cutting a negative number of wire rods is known, and staples (U-shaped stoppers)
It is also used to manufacture fasteners such as pins. The plurality of wire wires is a feeding means 114 designed to feed and cut the plurality of wires, and a cutting means 22.
Sent to. In the present specification, the term “wire” means one or more wire rods unless otherwise specified. 3 and 4 illustrate a preferred embodiment of the present invention. The wire 34 is held on a carrier 109 located close to the device. The wire 34 is fed from the carrier 109 to the straightening guide 36 via the pulleys 111 and 112. In operation, at least one wire is delivered to the series of wire straightening guides 36. The straightening guide 36 finally straightens the curved and twisted wire. Because a large amount of wire is used in a short time,
Wire is usually a very large spool or carrier 10
9 is supplied.

Mounting on the wire carrier 109,
Alternatively, the wire 34 may be bent or twisted for handling, and if the wire 34 is not straightened before forming the band 116 of the headless connector 110 of the present invention, a defective product will be manufactured. The wire straightening guide 36 is a general commercial product, and various shapes and sizes are available. In the preferred embodiment, two sets of straightening guides are provided. One of the two sets of straightening guides 36 is positioned above the other and attached to a vertical support 32, a wire 34 is fed from above between the first set of straightening guides, and then the first Feeding a second set of straightening guides located directly below the straightening guides. In the drawings, the two sets of straightening guides are configured to have rollers and are arranged so as to be offset by 90 ° with respect to each other, but it goes without saying that such a configuration and arrangement are not limited. All that is required of the wire straightening guide 36 is that the wire 34 be straightened before it is fed to the feeding means 114, which comprises feeding wheels 138, 139. The feed wheels 138, 139 are attached to the vertical support 32 just below the straightening guide 36, and the rotation axes of the feed wheels 138, 139 are formed by the wire wire 34 and the vertical support 32. It is constructed perpendicular to the plane. The guide surfaces of the feed wheels 138 and 139 are formed in contour lines, and are configured to deform the surface of the shaft portion 16 of the coupler to increase the holding force.
The feed wheels 138, 139 are located on either side of the wire to prevent slipping of the wire between the feed wheels. The wire 34 is disposed between the pair of feed wheels 138 and 139, and is rotated and pulled through the straightening guide 36. Needless to say, even if the feeding wheels 138 and 139 have a large gripping force and flat portions are formed on both sides of the wire 34, the flat portions do not affect the manufacturing process or the fastener manufactured by the manufacturing process. .

The wire 34 that has passed through the feed wheels 138 and 139 then passes through the guide 115 and the cutting means 22.
Are aligned to. The cutting means 22 cuts the continuous wire 34 to manufacture the headless connector 110. In the preferred embodiment, the feed wheels 138, 13
9 and cutting means 22 are spaced apart and are configured to facilitate repairs and dimensional changes of the fitting. The guides 115 are arranged so that the wire 34 is fed between the guides 115 and placed in the correct position for cutting. The feeding means 114 and the cutting means 22 may be arranged closer to each other, thus reducing the size of the guide 115 or eliminating it.

The cutting means 22 is constructed with two wheels, which have axes of rotation parallel to one another and which have at least one cutting blade arranged on the outer circumference. The cutting wheels 38, 39 have a plurality of inserts 40 which are spaced apart on the outer circumference of each wheel corresponding to the desired length of the particular headless joint 110 to be manufactured. Are arranged. Each of the above cutting wheels 38, 3
9 has exactly the same number of inserts 40 arranged in exactly the same position, and by means of a gear train each cutting wheel 3
The respective plugs 40 arranged on the wires 8, 39 are interlocked so as to come into contact with both sides of the wire 34. Each of the above insertion tools 40
Has a blade 42 which cuts the wire 34 into individual headless fasteners 110 as they pass. The headed coupler 10 manufactured because the inserts 40 are evenly spaced on the outer circumference of the cutting wheels 38, 39
It has a uniform length within a predetermined manufacturing tolerance.
The uniform placement of the plug 40 on the outer circumference of the cutting wheels 38, 39 is one of the key features of the present invention, and has an unspecified dimension within the assembly 11 of the coupler. Contamination of the head coupler 10 is eliminated. It goes without saying that the inserts can be arranged at different distances on each cutting wheel to easily produce different length couplings. The specific shape of the blade portion 42 of the insertion tool 40 is such that the tip portion 1 for entering the work required for the specific headed connector 10 is provided.
It corresponds to 8 types. The pair of cutting wheels 3
One of the cutting wheels 8 and 39 is provided with the insertion tool 40 having the blade portion 42, and the other wheel is not provided with the insertion tool to leave a smooth surface, thereby forming an acute-angled work of the headed connector 10. A tip portion 18 is formed to enter the.

The above-mentioned feeding means and cutting means are ideal when manufacturing one length of the headed coupler 10 in large quantities. However, due to the fact that practically different sized fittings are required, it is often necessary to change from one length to another. In anticipation of such a situation, the peripheral speed of the wire feed wheels 138, 139 is preferably set lower than the peripheral speed of the cutting wheels 38, 39. This is accomplished by keeping the speed of the cutting means constant and controlling the speed of the feeding means 114 by various governors (not shown). By reducing the peripheral speed of the feed wheels 138, 139, the headless coupler is shortened. On the contrary, by increasing the peripheral speed of the feed wheels 138 and 139, the headless coupling is lengthened up to the distance between the insertion tools 40 provided on the cutting wheels 38 and 39. Such an arrangement saves the time required to change the components compared to a device in which both the feeding means 114 and the cutting means 22 have a constant speed. The headless coupler 110 produced by the cutting wheels 38, 39 is then spaced apart in parallel at regular intervals to lock and lock the locking track 24.
Be transferred to. The locking track 24 is configured by partially including a rotatable gear 58 having a slot 60, and the slots 60 are arranged at equal intervals on the outer periphery of the gear 58, and the spacing is the headed coupler 10. The intervals required for the specific assembly 11 of FIG. The gear 58 is fixed to the rotary shaft 59 so that the slot 60 is parallel to the operation of the headless connector 110 when the headless connector 110 is transferred from the cutting means 22 to the locking track 24. The axis line of the rotary shaft 59 is arranged at the bottom. The transfer means 123 can simply consist of a guide tube for directing the headless coupling 110 into the slot 60 of the gear 58. Such a configuration can sufficiently deal with the headless and short connector 110. However, for long headed fittings 110, it is necessary to have a transfer means 123, which preferably comprises a drive wheel 115. Drive wheel 115
Are arranged one on each side of the headless coupler 110, and the peripheral speed thereof is significantly higher than the peripheral speed of the cutting wheels 38, 39.

To lock the headless coupler in a parallel arrangement,
The slot 60 of the gear wheel 58 is preferably constructed slightly larger than the shaft 16 of the particular fitting. Gear 5
8 stops for the time required to introduce the headless connector 110 into the slot 60. The headless coupler 110 need not be delivered to the slot 60 at precise intervals, but at least be stable. Since the time when the gear 58 is stopped for the transfer affects the production amount of the headed connector 10 per unit time, the time allocated for the transfer should be shortened as much as possible. The individual headless fasteners 110 are transferred into the slots 60 by a transfer wheel 115 which rotates more constrained than the cutting means 22 and the headless fasteners 110.
The gear 60 is indexed to the next position while being continuously manufactured. Gear 58, cutting means 22, and transfer means 2
The operation of 3 is driven by the motor 30 via a synchronous drive train (not shown). The rotating operation of the cutting wheels 38, 39 and the transfer wheel 115 is continuous, whereas the rotating operation of the gear 58 is a step operation of a high speed shutter. Although rotating gear 58 is the preferred embodiment,
It goes without saying that a toothed chain or a truck may be used instead of the gear 58.

5, 6 and 7 show alternative embodiments of the cutting means and the transfer means. The cutting means 22 is arranged immediately after the wire straightening guide 36 and therefore the feed wheels 138, 139.
, The guide 115 has been removed. Cutting wheel 38,
The reference numeral 39 functions as a feeding means together with the manufacturing function of the headless connector. The cutting wheels 38, 39, the spigot 40, the teeth 42 and the functional details are similar to those described above for the length locked fasteners. Since this alternative embodiment does not include a variable delivery means 114, the headless connector 110 has a length determined by the spacing in which the plugs 40 are located. To change the length of the coupling,
The number of cutting wheels 38, 39 or inserts 40 must be changed. The wire 34 is a cutting wheel 38,3
9 is cut into individual headless fasteners 110, and each of the headless fasteners 110 is dropped from the cutting wheels 38, 39 one by one to the transfer means 23 arranged immediately below. The transfer means 23 is then connected by the subsequent headless coupling device 110.
Prior to moving to No. 3, the preceding headless coupler 110 is transferred to the guide track 46. One embodiment for transporting the headless fastener 110 is a rotatable wheel 44 having teeth, the axis of rotation of which is arranged parallel to the drop path of the headless fastener 110. It is configured to rotate in synchronization with the cutting wheels 38 and 39 via a gear train (not shown). Each headless connector 1
When 10 falls on the front of the tooth 45 of the toothed wheel 44, the leading headless coupler 110 is in the guide track 46 before the trailing headless fastener 110 falls on the toothed wheel 44. Rotate. Wheel with teeth 44
Needless to say, can be replaced by a conventional push rod moving forward and backward, and a similar result can be achieved.

The guide track 46, which is perpendicular to the vertical support 32, is aligned side-by-side with the headless coupler 110 vertically installed before it is introduced into the anchoring track 24. Accumulate in the allowed state. Guide track 4
6 is structurally simple and comprises a front rail 47, a recessed area 48 and a back rail 49. The front rail 47 is basically L-shaped, and the headless connector 11
Guide the 0s into alignment. Recessed area 48
Is a small space area arranged in the center of the front rail 47 facing the headless connector 110, and the recessed area allows the front rail 47 to contact between the upper part and the lower part of the headless connector 110. Is configured to. The recessed area 48 reduces friction between the headless coupler 110 and the front rail 47. Base 50 of the L-shaped front rail 47
Are extended below the headless joints 110, and each headless joint 110 is guided by the transfer means 23 by the guide track 46.
As it moves along, the headless coupler 110 rests on top of the L-shaped base. The back rail 49 is arranged on the opposite side of the headless connector 110 so as to face the front rail 47 and be spaced apart from the front rail 47. The distance between the back rail 49 and the front rail 47 is such that the headless connector 110 is vertically held between them and can pass freely. The back rail 49 is in the shape of a quadrangle Z, and the upper portion of the "Z" extends in the direction of the front rail 47 to hold the coupling vertically. The length of the guide track 46 is not critical, but is preferably kept to a minimum so that the friction produced by the headless coupler 110 as it travels along the guide track is reduced. Furthermore, with shorter guide tracks 46, there is less risk that the headless coupler 110 will become jammed between the front rail 47 and the back rail 49.

The pressing member 5 is used to press the headless connector 110 downward and hold it on the upper surface of the base of the front rail 47.
6 is required. The pressing member 56 is a guide track 46.
It may be constituted by a metal flat plate which covers the upper side of the locking track 24. When the headless coupler 110 moves up along the front rail 47, if the headless coupler 110 is lifted up, a defective coupler assembly is manufactured. In an alternative embodiment, the locking gear 24 is locked when the rotary gear 58 is secured to a rotary shaft 59 which is positioned perpendicular to the direction of travel of the headless coupler 110 along the guide track 46.
Is arranged at the outlet end of the guide track 46. The rotary gear 58 has slots 60 spaced around the circumference of the gear 58, the spacing of the slots 60 corresponding to the spacing required for a particular assembly 11 of the headed coupling 10. There is. The headless coupler 110 is vertically arranged in the guide track 46 as it advances toward the gear 58. In the guide track 46, the headless connector 110 at the leading edge abuts the outer peripheral surface of the rotating gear 58. When the slot 60 of the gear 58 is aligned with the headless coupler 110, the headless coupler 110 is inserted into the slot 60. Then, the subsequent headless connector 110 advances, contacts the gear 58, and waits for the next slot 60.
Movement of the headless coupler 110 into the slot may be assisted by vibrating the guide track 46. In a high-speed operation of processing 50 headless fasteners 110 per second, it is necessary to generate the above-mentioned vibrations in order to facilitate the stable and effective formation of the strip 116 of the headless fastener 110. Sex increases.

In both embodiments, a headless coupler 110.
Is tightly held in the slot 60 by a holding member 61, and the holding member 61 is spaced apart from the outer peripheral portion of the rotatable gear 58 and arranged along the outer peripheral portion. By the holding member 61, the headless joint 110 is separated from each other at a predetermined interval to surely contact the locking members 12 and 21, and the gap is defined by the continuous strip 116 of the headless joint 110. The spacing determined by the spacing of the slots 60 of the gear 58 for forming. One tie used is wire 6
2 is a wire rod, and is electrically welded to the headless connector 110 in a tangential direction. The spool 63 of the wire 62 is arranged at a position convenient for unloading when using the wire. The wire 62 is pulled out from the spool 63 around the electrode 64, and is pressed by the electrode 64 against the headless connector 110 held in the slot 60 of the gear 58. The electrode 64 applies an electrical impulse. Wire 62 and gear 58
The inner contact surface with the headless connector 110 is heated and welded by the electric impulse. Rotatable gear 58
Replaces each successive headless connector 110 in slot 60 with
The wire 62 is repeatedly fed along the electrode 64. A headless connector 11 in which the wire 62 is followed by an electrode 64
When pressed against the foot portion of 0, the wire 62 is welded to the foot portion of the headless joint 110 by the above-mentioned electrical impulse, and the band-shaped material of the joint is formed. Headless coupling 1
When the ten strips 116 are formed, the wire 62 is
The wire welded to the headless coupler is constantly pulled from the spool 63 by the operation of separating the wire from the spool 63. In order to reduce wear and friction, it is desirable that the electrode 64 be constituted by a roller, which roller 5 rotates.
8 is fixed to an axis of rotation arranged parallel to the axis of rotation of the roller 8, and the roller is slot 6 on the outer circumference of the rotating gear 58.
It is arranged facing the wire 62 to be welded to the headless connector arranged in 0.

In the preferred embodiment, as shown in FIGS. 1, 3, and 5, two parallel wires 62 are attached to a headless connector 110.
Are welded to the same side of the. By welding the two wires, it is possible to ensure that the headless coupler 110 is fixed at equal intervals and in parallel. For tools that require an evenly spaced and parallel assembly of connectors, a headless connector 110.
In another embodiment of the invention for manufacturing the assembly 11 of
The stopper 12 is made of cast plastic. The above-mentioned electrode 64 is replaced by a plastic molding roller, and the above-mentioned electric impulse welding machine is replaced by a plastic injection molding machine. The cast plastic is heated and fed around the headless fastener. After welding to the headless fastener the plastic is cooled,
As a result, the band-shaped material 116 that is stronger than the band-shaped material manufactured by the above-described metal wire is obtained. In yet another embodiment, the locking member 21 is made of a preformed plastic strip having a gripping portion arranged at an interval corresponding to the interval of the slots 60 of the rotating gear 58. is doing. The electrode 64 is replaced by a pressing roller that presses the headless coupler 110 against the grip, thereby fixing the headless coupler to the grip.

In the case of actual joining in certain applications, the driving tool requires a magazine for the joining tool in order to place it at a predetermined distance from the workpiece. The distal coupler magazine has a gap between the driving tool and the work piece to facilitate tool handling.
The distal coupler magazine is angled in the plane formed by the ends of the anchored headed coupler 10 of the assembly 11 ', or configured perpendicular to the foot 16. Not done. The legs 16 are arranged parallel to each other as shown in FIG. The angle of said plane with respect to the horizontal is generally comprised between 15 ° and 35 °, depending on the type of tool using the headed fitting 10. The device according to the invention is easily adaptable to different connector magazine configurations for different tools. As shown in FIGS. 10 and 11, the outlet portion of the guide track 46 is inclined from the vertical direction to the horizontal direction by a desired angle. The bottom surfaces of the front rails 47a and the back rails 49a are configured so that the headless couplers are positioned at precise angles therebetween. The relationship between the recessed area 48 and the base 50 is maintained substantially the same as the above-mentioned configuration. The rotatable gear 58a is provided with slots 60a along its outer circumference, the slots 60a being arranged at a spacing, angle that matches the spacing, angle required for a particular coupler assembly. There is. The headless coupler 110 at the leading edge within the guide track 46 is housed in the slot and anchored as described above. In the preferred embodiment in which the headless coupling is introduced directly into the rotatable gear 58, the cutting means 22 and the transfer means 123 are slots 60 in the gear 58a.
corresponding to a, and slot 60 of gear 58a
It is aligned with a. Whichever tether 12 or 21 and method is applied, the strip 116 of the headless connector 110 is formed by using a tether attached to a series of headless connectors.

To fabricate the assembly 11 of the headed coupler 10 from the strip 116 of the headless coupler 110, the strip 11
6 is fed to the head forming means 26 by the conveyor means 25. As shown in FIGS. 3 to 9, the head forming means 26 includes a support 66 and a ram 68 that reciprocates, and the ram 68 is electrically driven via a cam (not shown). It is driven by the motor 29. The support 66 has a horizontal base 67, and a holding block 69 composed of two half bodies 70 and 71 is provided on the base 67. While the two halves 70, 71 of the clamping block 69 form the head 14 of the connector, the headless connector 1 between them.
Hold 10 At least one, preferably two or more heads 1 per reciprocating movement of the ram 68.
4 is formed. However, the number of headless fasteners 110 that are headed by a single movement of the ram 68 depends on the shape of the head 14 formed and the wire 34 used to manufacture the headed fastener 10. It depends on the diameter. For example, 5
A ram driven by a horsepower electric motor can form 10 heads on a wire having a diameter of 1.2 mm in one operation. With a wire of 2.0 mm in diameter, the number of heads formed in one operation is 5 unless the size of the ram is increased to accommodate about 10 heads in one operation. is there. In the case of a coupler having feet with a diameter of 2.0 mm or more, the number of heads formed in one operation is reduced to two.

The conveyor means 25 comprises a pair of rollers 73 and 74 which come into contact with the continuous strip 116 made of the headless connector 110.
The rotation axis of is arranged perpendicular to the movement direction of the strip 116. Each time the reciprocating ram 68 moves upward, the rollers 73, 74 rotate to transfer the strip 116 of the headless connector 110 between the two halves 70, 71 of the clamping block, and the ram 68's The head is formed by the next lower motion. The conveyor rollers 73 and 74 are commercial products driven by a link mechanism (not shown), and are not limited to the implementation of the present invention. Further, the link mechanism (not shown) of the conveyor has a conveyor roller 73 corresponding to the length of the assembly of the headless connector 110 whose head is formed between the half portions 70 and 71 of the holding block. , 74 are configured to be adjustable so that the outer peripheral surfaces of them move. Head 1
4 is formed, a curved portion 76 is formed between the rotatable gear 58 and the conveyor rollers 73 and 74 on the continuous strip 116. The size of the curved portion 76 of the strip is such that the strip 116 of the headless coupler continues to be ejected from the outlet of the rotatable gear 58, and the conveyor roller 73,
It continues to grow while the strip 116 between 74 is at rest. Therefore, the conveyor rollers 73 and 74 can intermittently feed the strip-shaped material 116 of the headless connector to the sandwiching block 69 without being restricted by the processing steps in the locking means 24.

Referring to FIGS. 8 and 9 showing one embodiment of the sandwiching block 69, the sandwiching block 69 comprises two half bodies 70 and 71 symmetrically arranged with respect to the center line thereof. Has been done. A guide block 78 is provided on a horizontal base 67 of the support body 66, and restrains the movement of the two half bodies 70 and 71 of the sandwiching block. The two halves 70, 71 of the holding block are configured to be movable in the direction perpendicular to the operation direction of the continuous strips 116 in the guide block 78 when the strips 116 of the headless connector pass between them. Has been done. The two half portions 70, 71 of the sandwiching block are L-shaped having a vertically extending portion, and the vertical portion is for locking the headless connector 110 arranged between the half portions. Aligned to the marked part. Reciprocating ram 68 of head forming means 26
Has an inverted U-shape and is aligned with the vertical portions of the L-shaped half portions 70 and 71 of the holding block 69. Ram rollers 80, 81 are attached to the tips of the inverted U-shaped branches.
Has been attached. Each half 70 of the holding block 69,
A biasing spring 82 is provided in a groove portion 83 formed in the lower portion of 71. The biasing spring 82 is a ram roller attached to the guide block 78 and the inverted U-shaped branches described above by separating the half portions 70 and 71 of the holding block 69 from the center line of the holding block 69. It is urged toward 80 and 81 to form a gap 84 between the halves 70 and 71, the width of which allows the continuous strip 116 to freely pass therethrough.

While the half-parts 70, 71 of the holding block 69 are separated from each other, the continuous belt-like member 11 of the headless connector 110.
6 is fed between the half bodies 70 and 71 by the conveyor means 25. The first outer surface 86 of each half 70, 71 of the clamping block 69 is in contact with the ram rollers 80, 81, and while the half 70, 71 are biased by the ram rollers and are spaced apart. It acts as a stop that provides the gap 84. The ram rollers 80 and 81 are clamped by the clamping block 69.
When the ram rollers 80, 81 start moving downward on the vertical outer surface of the L-shaped half of the half block 7,
It contacts the protruding second outer surface 87 of 0, 71. The second
Since the outer surface 87 of the ram roller 80, 81 is formed outside the first outer surface 86 from the center line of the sandwiching block 69, when the ram rollers 80, 81 ride on the second outer surface 87, the half body portion 70, 71 is pressed toward the center line of the sandwiching block 69. When the half-body portions 70, 71 of the holding block 69 are pressed toward the center line, the continuous strip-shaped material 116 of the headless connector 110 causes each half-body portion 70 of the holding block 69,
It is tightly clamped by the inner surface 88 of 71. Holding block 6
9 is then in the closed position. Each L of the clamping block 69
The first concave portion 90 facing the inside of the half-shaped half portions 70, 71.
And is configured to provide a clearance for the anchor. In FIG. 8, the fastening material is shown as a band material 21, and in FIG. 9, the fastening material is two wire wires 1.
Indicated by 2. Referring to FIGS. 8 and 9, a second recess 91 is formed at the inner end of the top of each L-shaped half 70, 71 of the holding block 69, and the second recess 91 is formed. It matches the shape of the head. The second recess 91 can have various shapes and sizes to form different nail head shapes. For example, the recess can be circular to form a round head nail. While the ram 68 and the ram rollers 80, 81 move down on the second outer surface 87, the half parts 70, 71 of the clamping block 69 remain stationary with respect to the foot of the fitting clamped between them. Retained. This is because the second outer surface is formed parallel to the direction of movement of the ram.

The central portion 92 of the ram 68 is the holding block 6
It projects downwards above the top of the headless coupler 110 in 9 and is used to press the upper end of the headless coupler 110 to transform it into the shape of the second recess 91 to form the head. To be done. When the lower motion of the ram 68 is completed and the end portion of the coupler is formed into the shape of the second recess 91, the ram 68 returns upward. When the ram 68 moves upward, the ram rollers 80, 81 move from the second outer surface 87. The biasing spring 82 arranged in the lower recess 83 of the sandwiching block 69 acts on each half body portion 70, 71 of the sandwiching block 69 so that the ram rollers 80, 81 contact the first outer surface 86 again. Until then, the halves of the sandwiching block 69 are separated from each other and urged so as to be pushed away from the center line of the sandwiching block. Holding block 69
Is then in the open position. 8 and 9, half blocks 70 and 71 of the sandwiching block and ram rollers 80 and 81.
, The first and second outer surfaces 86, 87 and the first and second recesses 90, 91 are shown symmetrically, but half of the clamping block so as to form the head 14 of the coupling. It goes without saying that other means for operating the parts operate as well.

Assembly 1 of Angled Head Coupling 10
An apparatus for forming 1'is illustrated in FIG. A plurality of inclined recesses 100 are provided on the upper surfaces of the half portions 70 and 71 of the holding block. When the halves 70, 71 are in the closed position, the ram 68 causes the head 1 to be symmetrical to the foot 16.
4 is formed. The central portion 101 of the ram 68 is shaped to align with the recess 100 to form the desired head shape. To form an assembly of aligned fasteners, the rams 68 are preferably oriented parallel to the slanted foot 16 rather than perpendicular to the feed direction of the strip as described above. To operate. After pressing to form the head 14 on each headless fastener 110 of the fastener assembly, the assembly becomes a headed fastener assembly. The belt-shaped material 116 of the headed connector 10 is moved to the head forming means 26 by the conveyor means 25.
And is ejected from the trailing headless coupler 110 and is advanced between the clamping block halves 70, 71. Coupling 10
Another embodiment of forming the head on the head is shown in FIGS. This embodiment is preferred when the headless connector 110 is inclined with respect to its strip 116 to produce the assembly 11 'shown in FIG. An alternative embodiment incorporates the conveyor means and the head forming means in one means, the rotatable gear 102, the clamping block 103, the head forming ram 68 and the means for driving each. It is configured to include. The rotatable gear 102 is fixed to a vertical rotating shaft 104, and the rotating shaft 104 supports the support member 6
6 are arranged on a horizontal base 67. The gear 102 has slots 105 arranged on the outer periphery at predetermined intervals, and the intervals correspond to the intervals of the couplings of the assembly of the couplings to be manufactured. On the upper side of the gear 102, a recess 91a is provided symmetrically with respect to the slot 105 to form a part of the head 14 of the coupling when the headless coupling 110 contacts the ram 68.

The sandwiching block 103 is provided on the base portion 67, and is configured to reciprocate in the vertical direction with respect to the rotating shaft 104 by the link mechanism 106.
The holding block 103 has a concave surface 107, and the concave surface 107 coincides with the outer peripheral surface of the rotating gear 102.
The concave surface 107 of the holding block 103 has a slot 105a.
And the slot 105a is configured to be aligned with the slot 105 of the gear 102 when the holding block 103 is in a position for holding the coupler in cooperation with the gear 102. On the upper side of the holding block 103, a recess 91 for forming a part of the head 14 of the connector is formed.
b is provided symmetrically with respect to the slot 105a.
The recess 91b is arranged vertically in the same plane as the recess 91a of the gear 102. Holding block 103 and gear 10
When 2 is in a position to hold the coupling tool, the shape and size of the head portion 14 of the coupling tool are determined by the concave portions 91a and 91b. A recess 90a is provided on the outer periphery of the gear 102 and is divided into an upper surface and a lower surface to form a gap for the locking member 12 or 21. The concave surface 107 has a similar recess 90b for the same purpose.

In the sequential operation of this embodiment, the continuous strip 1 of the headless connector 110 is used when the ram 68 starts downward movement.
Position 16 within at least two slots 105 of rotatable gear 102. Ram 68 is a headless connector 11
Before pressing 0, the pinching block 103 is moved by the link mechanism 106 in the direction of the rotatable gear 102, and the headless coupler 110 is sandwiched between the two to engage the ram 68.
Hold the headless coupler 110 sufficiently to prevent it from slipping when forming the head 14. The ram 68 moves downward enough to move the head 1
When 4 is formed, it returns to the open position. When the ram 68 is sufficiently separated from the gear 102 and the sandwiching block 103,
The link mechanism 106 separates the holding block 103 from the rotatable gear 102. Then, the rotary shaft 103 rotates, and the head 14 formed by one movement of the ram 68 is formed.
Advance by exactly the number of slots 105. When the headed joint 10 is moved from the head forming region by the gear 102, the headless joint 110 of the succeeding strip member 116.
Moves to a position where the head 14 is formed by the next movement of the ram 68. The ram 68, the rotatable gear 102, the sandwiching block 103, and the link mechanism 106 are connected to the motor 29.
It is configured to operate in synchronization by a power transmission device (not shown) driven by. Holding block 10
A guide plate 108 is arranged at the inlet of the gear 102 to ensure accurate engagement of the coupling strip 116 with the slot 105 of the gear 102 while the 3 is not engaged, ensuring a headless head. Coupling 110 is configured to seat within slot 105. After the head 14 is formed, the headed fitting 10 is in tight engagement with the slot 105 and the recess 91a so that the gear 102 will not easily fall out during the next indexing operation. Tapered strip 11 so that the headed coupler 10 can be easily removed from the slot 105.
3 is provided on the base 67 and the strip 113 is inserted at the front edge into the recess 90a so that the headed coupling 10 can be pushed out of the slot 105 as it passes therethrough. Is configured.

A measuring device or a measuring device (not shown) is provided for operating the band-shaped material cutting means 27,
Band-shaped material 11 of headed coupler 10 having a predetermined length or a predetermined number
6 is cut into strips or an assembly 11 of the headed coupler 10. The coil device 96 is provided when a certain length or a certain number of couplers are used in a coil in a coiled state. Various coil devices are already available. One type of coil device is illustrated in FIGS. The illustrated coil device 96 operates by connecting the front edge end of the belt-shaped member 116 of the coupler to a hook attached to the vertical rotation shaft 97. The rotating shaft 97 is rotationally driven by a motor 98 and pulls the strip 116 to form a coiled assembly 99. The cutting means 27 then cuts the strip 116 in the predetermined length or the predetermined number of the couplings 10. The on-coil assembly 99 then moves and the leading edge end of the next coupler assembly is anchored to the rotating shaft 97. When the assembly 11 of the coupler 10 is used in a strip shape without being coiled, the coil device 96 is not used. Although the embodiments have been shown and described with the frame structure standing upright in the vertical direction, the present invention may have a frame structure tilted by 90 ° or at any angle therebetween. Of course, it works the same way. The elements or directions of motion previously referred to herein are modified to accommodate a tilted frame structure. While the preferred embodiments of the invention have been described, it goes without saying that the invention is not limited to these embodiments.

[Brief description of drawings]

FIG. 1 is a perspective view of a coupling assembly consisting of parallel, angled couplings having a circular head and welded to parallel strands of two wires.

FIG. 2 is a perspective view of a coupling assembly consisting of a headed coupling secured to a plastic band.

FIG. 3 is a side view of an apparatus for forming a bonded assembly according to the present invention.

4 is a top cross-sectional view taken along the line IV-IV of FIG.

FIG. 5 is a side view of another apparatus for forming a bonded assembly according to the present invention.

6 is a cross-sectional view of the headless coupler manufacturing apparatus and transfer apparatus taken along line VI-VI of FIG.

FIG. 7 is a top view taken along the line VII-VII of FIG.

8 is a cross-sectional view of the head forming device in the open position, taken along line VIII-VIII in FIG.

FIG. 9 is a cross-sectional view of the head forming device in the closed position.

10 is a partial cross-sectional view of a guide groove for a tilted headless coupler of the type shown in FIG. 2, taken along line XX in FIG.

11 is a partial cross-sectional view of a fixed gear for a canted headless coupler taken along line XI-XI of FIG. 7.

12 is a partial cross-sectional view of a head forming device for a tilted headless coupler, taken along line XII-XII in FIG.

FIG. 13 is a partial top view of another transport and head forming device.

14 is a partial cross-sectional view of the retention and head forming device taken along the line XIV-XIV of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Headed coupling tool 11 ... Headed coupling tool assembly 22 ... Cutting means 24 ... Locking means 25 ... Conveyor means 26 ... Head forming means 27 ... Cutting means 58 ... Gear 60 ... Slot 116 ... Headless joining tool Continuous strip 110 ... Headless coupling

Claims (21)

[Claims] 1. A method of processing a wire wire rod to manufacture a selected number of headed connector assemblies at the first and second work stations, the method comprising: (a) selecting the wire wire rod. Cutting into a plurality of headless fasteners of uniform length, (b) transporting the plurality of headless fasteners to a first work station, and (c) the headless fasteners at the first station. Arranging them in parallel relation to each other at intervals, and then locking the headless connectors to form a continuous strip of headless connectors, (d) the locked headless connectors The continuous strip of the first
Transfer from a station to the second station, (e) at the second station, forming a head at one end of each of the fasteners of the continuous strip when the fasteners are disposed at the second station. And (f) transferring the continuous strip from the second station and selectively cutting the continuous strip of the headed coupler to form a selected number of headed coupler assemblies. A processing method characterized by the above. 2. The processing method according to claim 1, further comprising fixing the tip of the continuous strip to a rotation shaft and rotating the shaft to form a winding assembly of a selected number of couplings. A processing method that includes steps. 3. The processing method according to claim 1, wherein each headless connector cut from the wire wire includes a shaft portion,
First and second opposite ends, the headless coupler is arranged such that the first and second ends thereof are located on corresponding straight lines, and the arranged coupler is provided. Is a processing method in which the axis of each coupler and the first and second straight lines form an angle smaller than 90 ° with respect to a continuous strip. 4. An apparatus for receiving at least one wire wire and producing a selected number of headed connector assemblies therefrom, comprising: (a) a uniform length for selecting the wire wire. Means for cutting into a plurality of headless connectors, (b) arranging means for receiving the plurality of headless connectors and arranging them in parallel with each other, (c) arranging in parallel Locking means for locking the above coupling means to form a continuous strip of parallel headless coupling tools, and (d) a continuous strip of the headless coupling tool provided at a position downstream of the coupling means. A transfer and head forming means for transferring from the locking means to its own means in a predetermined operation direction and forming a head at one end of each tool of the headless coupling tool; and (e) the head forming means. Is provided at a downstream position of the headed connector, receives the continuous strip of the headed coupler, and cuts the continuous strip to produce a selected number of pieces. And cutting means for obtaining a coupler assembly body, which is configured by including manufacturing equipment. 5. An apparatus for continuously manufacturing a headed connector assembly according to claim 4, wherein each headless connector cut by the cutting means has a shaft and first and second opposing ends. The disposing means disposes the cut headless coupling tool such that the opposing first and second ends thereof are on corresponding first and second straight lines, respectively. The connecting means is configured such that the continuous belt-shaped body of the headless joint has an angle between the axis of each headless joint of the belt and the first and second straight lines smaller than 90 °. Manufacturing equipment that locks. 6. The apparatus for continuously manufacturing an assembly of headed connectors according to claim 4, wherein the disposing means comprises a track having slots spaced apart from each other, the slots being cut. Selectively and regularly positioned to convey the headless fastener directly from the cutting means into the slot as the headless fastener is ejected from the cutting means,
The slot is a manufacturing device that holds the headless connector therein. 7. The apparatus for continuously manufacturing a headed coupler assembly according to claim 6, wherein the track conveys the cut headless coupler from the cutting means to the slot of the track. Manufacturing equipment that stops in an instant. 8. An apparatus for continuously manufacturing an assembly of headed couplers as set forth in claim 7, wherein said raceway comprises a rotatable gear wheel, said gear wheel having said spaced slots at its periphery. Manufacturing equipment possessed. 9. The apparatus for continuously manufacturing a headed joint assembly according to claim 4, wherein the disposing means contact both sides of the cut headless joint in a frictional contact state. A set of driven rollers arranged to increase the speed of each cutting and coupling tool exiting the cutting means, and the arranging means to separate the slots from one another. A manufacturing apparatus having a track having a slot selectively positioned to transport the cut headless coupler directly into the slot from the set of driven rollers. 10. An apparatus for continuously manufacturing an assembly of headed fasteners according to claim 9, wherein the cut headless fasteners are transported from the cutting means to one of the slots. Manufacturing equipment that stops instantly. 11. The apparatus for continuously manufacturing an assembly of headed couplers as set forth in claim 10, wherein said raceway further comprises a rotatable gear wheel and has said spaced slots at its periphery. Manufacturing equipment. 12. The apparatus for continuously manufacturing the assembly of headed couplings according to claim 4, wherein the locking means includes an arrangement means for arranging the headless coupling on a locking material, and the track. A pressure wheel that is forcibly pressed against the headless connector while the headless connector is held in the slot, and the locking member is held by the pressure wheel. A manufacturing device for manufacturing a continuous strip of a headless connector that is pressed and attached to a section. 13. The apparatus for continuously manufacturing a combination of headed fasteners according to claim 6, wherein the locking means is provided while the headless fastener is retained in the slot of the track. A manufacturing apparatus in which a non-metallic band material is applied to the headless connector, and the band material has a heat-activatable adhesive on one side thereof for the purpose of adhering the band material to the headless connector. 14. The apparatus for continuously manufacturing a headed coupler assembly according to claim 6, wherein the locking means is provided while the headless coupler is held in the slot of the track. A feed means for providing a wire wire towards the headless coupler and the headless head while the wire wire is placed close to the track while the headless connector is held in the slot of the track. An electrode for contacting and arranging with respect to the fastener, the electrode being provided with a sufficiently large electric pulse to weld the wire wire to the ejected headless fastener, and as a result, a continuous strip of the headless fastener. Manufacturing equipment that forms the body. 15. The apparatus for continuously manufacturing a combination of headed fasteners as set forth in claim 14 wherein said feeding means is configured to provide said headless fasteners while said headless fasteners are retained within said slots of said track. A manufacturing apparatus in which at least two metal wires are provided to a headless connector, and the electrodes weld the two wire wires to the same side portion of each headless device with a gap. 16. The apparatus for continuously manufacturing a combination of headed fasteners according to claim 6, wherein the locking means is provided while the headless fastener is retained in the slot of the track. The headless coupler is provided with a dispensing means for dispensing a locking material, and a pair of forming rollers disposed on both sides of the headless coupler to move the strip in a predetermined direction. And the 1
Each of the rollers of the pair of forming rollers has an axis perpendicular to the predetermined direction, and the pair of rollers is configured so that the headless coupler and the locking member pass through between the rollers. A manufacturing apparatus for pressing a locking material around the headless connector, thereby forming a continuous strip of the headless connector. 17. The apparatus for continuously manufacturing a combination of headed fasteners as set forth in claim 16, wherein said dispensing means is provided while said headless fastener is retained within said slot of said track. A manufacturing device for donating a strip of plastic material to the headless tie. 18. The apparatus for continuously manufacturing a combination of headed fasteners according to claim 16, wherein the dispensing means is provided while the headless fastener is retained in the slot of the track. A manufacturing device for feeding and contacting two parallel forming strips spaced apart from each other to the headless joint. 19. The apparatus for continuously manufacturing the assembly of headed fasteners according to claim 4, wherein the transfer and head forming means receives the continuous strip of the headless fastener and continuously connects the headless fasteners. A clamping device is provided for gripping and clamping at least two headless fasteners of the strip, and a reciprocating ram, the clamping device comprising two reciprocating rams when the reciprocating ram strikes an end of the fastener. A manufacturing device that holds the head fastener firmly. 20. An apparatus for continuously manufacturing a combination of headed fasteners as set forth in claim 19, wherein said transfer and head forming means engages at least two headless fasteners of said continuous strip. And a rotatable gear having an axis perpendicular to the moving direction of the continuous strip, wherein the clamp device has a reciprocating motion perpendicular to the axis of the rotatable gear. The rotatable gear advances the two headless couplings as they rotate about the axis, and the clamping device and the rotatable gear have the two couplings between them. An apparatus for manufacturing, wherein the heads of two couplers are firmly held and the heads of the two couplers are struck by the reciprocating ram, so that a headed coupler is formed. 21. An apparatus for continuously manufacturing an assembly of headed connectors according to claim 19, wherein the reciprocating ram forms a generally circular head of the connector.