FR2767305A1 - Thread or cord threading and tying machine - Google Patents

Abstract

A machine, for threading and tying threads or cords, employs air pressure and reduced pressure for passing the threads or cords through holes formed by channels in two superposed plates.- DETAILED DESCRIPTION - A machine, for passing threads through superposed channels and for tying them, comprises two plates with channels corresponding to the perforations of a card. The assembly rests on a table connected to channels fitted with two cutoff valves which cut off the air inlet and sever the thread. The machine also includes a spiral tube, the inlet of which communicates with the channels whenever the valves are closed by a controller connected to a thread length counter. The air intake sucks the thread into the channels, since closure of the valves directs air suction towards the spiral tube, the level difference and the spiral shape of which creates a circuit due to air pressure

Description

DEVICE FOR PASSING THREADS OF ATTA CHE A
THROUGH DRILLING AND TAPING THEIR END
Since time immemorial, it has been necessary to sew clothing or other fabrics.

Before the invention of the sewing machine, this work was carried out by hand using a longer or shorter needle, one end of which had received a thread in a slot provided for this purpose.

The invention of the sewing machine was welcome to take the place of this long and arduous work.

Today, industrial sewing machines provide the complete solution to all sewing problems that may arise.

There is an always fashionable technique which consists in basting two fabrics between them before the final seam, and this in order to shape the work.

Concretely the action of sewing consists in bringing together two pieces, and this exists more precisely in the skilled person who makes clothes.

The present invention is located in a sector distant from sewing, and which relates to the problem posed by two malleable pieces of fabric or cardboard which must connect together.

For beach bags, or some cardboard packaging, other accessories, closing is often done by pulling on a string or cord
The present invention provides a solution, whenever the son or cord has a certain flexibility.

At present, to carry out this work, the performer uses a needle into which he has introduced his son and he makes a back-and-forth movement between the holes where the son is to be placed.

This operation is similar to the activity of the seamstress who decides to sneak her fabric before the final seam.

This basting technique allows him to remove his son.

 There is currently a very high demand in the clothing sector for supplies of labels with a cord in the loop will allow elegant fastening on a garment.

Currently it is the manipulators who are responsible for carrying out this work which is all the more laborious as the two ends of the retaining thread must be knotted.

Despite the growing demand, these manual activities are not profitable because the recipient to whom return these labels, has a low budget in this sector.

The cost-effective solution involves the present invention.

The technical means known to date for making a knot at the end of a string dates back several years.

No progress has been made in this area, moreover very costly.

In addition, machines for knotting threads are very expensive.

In this field which consists in passing wires or cord through drilling, the activity is very important nowadays, but faults of an inventive machine, this activity is not profitable.

The present invention will avoid industrialists from being tempted by the search for cheap labor.

The present invention provides the solution for passing wires through holes and for tying them.

The present invention uses air pressure or vacuum to push or suck the son or cord.

This technique advantageously uses two plates.

 One of them rests on a compatible base.

The other held on a hinge presses on the base one.

Open channels are advantageously practiced in the base plate and cross it right through, describing all the desired geometric shapes.

These channels become watertight as soon as the upper plate comes to press on the base.

As soon as this action is performed, the open channel becomes waterproof.

At this stage, it is possible to inject air into the channel or to suck it in at one of the ends chosen in the base plate.

The invention takes account of the fact that it is industrially inexpensive to make holes in cardboard boxes or other objects intended to receive wires or cords.

By means of a precise mechanical adjustment, the upper plate hermetically presses on the base plate, when a cardboard or other piece has been introduced beforehand between the plates.

The holes in the lower and upper plates correspond exactly to the holes in the cardboard housed between the plates.

Each time a wire or cord is placed in front of the entrance to the orifice of the turntable and an air pressure or suction is directed at the other end, the wire is drawn by the current d 'air.

As soon as the circuit is finished, and you stop the air pressure or the vacuum, just lift the top plate and remove the cardboard to see that the wire has passed through the holes, that is to say that it followed exactly the passage of the air current inside the plates; when they were closed on top of each other.

One of the plates includes a spiral-shaped channel intended to receive the air flow.

The same way as before, the air will entrain the son in the spiral and thus cause a loop in the curve and the level changes will allow to achieve a knot.

A valve mechanically retains the end of the ribbon when the wire is pulled manually to remove the cardboard.

This mechanical restraint results in tightening the knot on demand.

In one of the applications of the invention, by way of nonlimiting indication, laFIG-1 (1): is the end of a cardboard feeder. (13): the arrival of the boxes.

(7): is the loading area which extends to (9).

(8), (16), (23) and (5): are the integral blades of the chain (21) whose linear advancement has the effect of advancing the cartons placed in the sectors (7) and (9) . The slowness of the rotation device (19) and (18) avoids all the dangers. àlaFTG-2: (33) and (43): are turntables. (41) and (42) are ends of a carton housed between these two plates. The marks (28) and (32): are ends of the channel which crosses the plate from side to side. (29) and (30): are holes made in the carton.

(28) shows the channel used in the base plate. From (29) to (30) it practiced in the upper stage. This realization will allow an extremely easy passage of air which will allow it to convey a cord.

(34) is the start of a channel practiced in the upper plate, up to mark (35) where the curve intended to join the channel practiced in the lower plate begins.

(36), (37), and (38) show the curves formed at each end of the channels when they communicate with the orifice made in the cardboard, such as (35), (37), (38). This technique is akin to making a road with many flexible corners. in FIG-3 (44): is a roll of wires, one strand of which is passed manually between the rollers (46) and then introduced into the tube (50) such as (51).

(47): is the electronic counter set to record a length of wires and to cut it according to whether this device has been predisposed. The section of this wire introduced manually into the tube (50) will be carried out by the valve (53) remote-controlled through the housing (61).

(52): is the support table. (54): is a removable box in which the looping operation is carried out which will make it possible to tie the wires.

(56): is the handle intended to open the upper plate thanks to the deformable parallelogram provided with a compensating spring intended to lighten the plate to the point of making this operation pleasant and effortless. This handle (56) has a general switch connected to a housing (61).

(83): is the upper plate. (84): is the bottom plate. (69): is the arrival of air suction on a large diameter implying a large flow and a low pressure. in FIG-4: (69): is the arrival of low pressure air suction in the channel (65) which takes the form of a channel practiced in each plate and which rests on one another to form a tube.

(63) is an identical channel is practiced in the same way. This channel (63) receives the brain of wires (50) which has been introduced manually up to section (70). The operation is simple.

The air suction flight is remotely controlled by the housing (61) as soon as the assembly is brought into contact with the handle (56).

The air arrives in the channel (65) and the suction is done up to the channel (63). This air intake draws the son into the tube (65). The length of the wires is adjusted by the device (47), and (48).

To limit the length of wires to a preset length, the device (47) makes contact in the housing (68). This immediately causes vanes (66) and (67) one of which (66) ends with a cutting instrument which will have the effect of cutting the thread at point (70) at the same time this decent will lock the tubes ( 63) and (65) in point (70) and (71).

This decent maneuver will simultaneously cause the decent of the devices (68) and (89) whose decent has the effect of opening a valve (74) thanks to the orifices such as (75).

 1l will result from this action an air suction only in the tube (50) which arrives in (80) and (81). This is where the knot of the coordonnet is made.

A buffer preset in the housing (61) stops the operation of the cicle. FIG -5 and FIG -6: represent the plates (83) and (84).

(88): is an intempteur. (91) and (92) are the terminals of the channels (63) and (65) formed in the plate (84).

(93), (94) and (95): are half-channels intended to press on the other channels practiced in (83) in accordance with FIG-2. in FIG -7: (97) is the channel coming from the tubes (63) and (65) and (76). The channel (97) is dug as an underground passage in order to pass under a bridge such as (108) the sides of this bridge are such as (98).

(99) is a hole intended to fix these two parts in the upper reference plate (83). In this figure, the two plates (83) and (84) are housed one on the other so that the sides of (98) rest hermetically on the plate (108) held by the arm (101) and intended to rotate through the motor (109) which comes into action through the housing (61) as soon as the buffer stops the cycle.

(103) and (102) are elements identical to (98) but diametrically opposite.

(105) is the plate connected to the flanges (102) and (103) whose rotation is motorized in the same way as (109).

(104) FIG-7 goes under the top (105) FIG-8.

(108) allows the upper passage of the channel (107) FIG-8. in FIG-9 (97) shows the channel dug at its first level then at its lower level, then at its upper level.

(100) shows the channel (107) FIG-8 which passes under the removable real pass (108) to then pass under the real pass (105) such as (104). FIGS-7 and FIG-8: show the two plates provided with holes such as (116), (111, (112), (113), (114), (115).

(84) is the lower part, the arrival of the large diameter channel decreases at point (110) to conform to the orifice (116).

In accordance with FIG-2, a cardboard is placed in an asymmetrical shape on this plate.

The cannai (110) communicates with the cannaI (117), (118), (119) to continue with (122), (121), (120) and more.

Claims (4)

 origin of the devices (77) and (78).  the spiral shape allows to obtain a loop this thanks to the air pressure in  spiral (107) of which and the difference in levels (100) and (104) as well as  closing of these valves directs via the channel (50) the air suction towards the  effect of sucking the wire in the channels (63) and (65) and (28) and (32) because the  (48) which manages the length of the wire (45) the air suction (69) having had  (66) and (67) close under the effect of the command (61) thanks to the counter  reentry (97) communicates with channels (63) and (65) whenever  a device (80) and (81) comprising a spiral tube (107) of which  on the one hand to cut the supply of air and on the other hand to cut the wire; also  channels (63) and (65) provided with two cutting valves (66) and (67) intended  those of a carton (41) and (42) the assembly housed on a table (52) connected to  crossed by channels (28) and (32) whose orifices correspond to  tie: characterized by the fact that it comprises two plates (33) and (43)  CLAIMS 1: -Device intended to pass wires through superimposed channels and to  to route the wire in place of the suction.  air (65) takes the form of a pneumatic thrust in the same circuit  2: -Device according to claim: 1; characterized by the fact that the suction 3: -Device according to claim: 1, characterized in that the container  (58) exists in place of the tape feeder (7) (8) (9) (12) and (13). 4: -Device according to claim: 1, characterized in that a ferry  standard (59) used to supply cardboard