ES2215594T3 - PROCEDURE AND INSTALLATION TO EMPALMATE THE EXTREMITIES OF MATERIALS IN BANDS, ESPECIALLY, TEXTILE BANDS. - Google Patents

Abstract

Process involves creating a material reserve long enough to feed the production line while the rolls are connected. The new roll (R2) end is placed on a support surface (7) and covered with a junction element. The first roll (R1) has its end cut and placed on a support surface (9). The first support surface pivots and stands vertically then is pressed against the second support surface. The two end are then fastened and the new roll starts feeding the production line as soon as the material reserve is used up. An Independent claim is also included for the process installation.

Description

Procedure and installation to splice the material ends in bands, especially bands textiles

Numerous technical sectors, such as the textile industry and particularly the finishing and beautification of textile articles, and the industry of molding, they face the problem of feeding an installation of transformation with a material that is presented as a band continuous, such as a nonwoven fabric or fabric or any another complex that can be cut, molded or thermoforming, said material proceeding from a roll containing a more or less large amount of material.

Subsequently, the problem of having to perform a splicing operation when the end of the feeding roll with the beginning of the material that comes from a new roll, and this to be able to have a food continuous, without stopping the transformation facility.

On the other hand, the problem of the safety of the operators who have to carry out the work of preparation with a view to the splicing operation without risk and, preferably, in a time that allows to avoid losses of production.

Depending on the type of band material, such splicing operation can be performed with a frequency that may be very variable and it depends on the length of material contained in a roll and the production speed of an installation of transformation.

To perform such a splice operation without stopping of the transformation facility, numerous have been made proposals so far as the one presented particularly in US 3 276 710 and FR 2 129 006 and 2 130 876

In general, in such facilities, the operation splicing is done by adhesive tapes arranged to both sides of the junction zone.

For continuous operation, the new roll is rotated at almost tangential speed equal to the speed of unwinding of the tissue at the time The end-to-end connection must be carried out.

On the other hand, to make the cut cross section of the material contained in the roll being finishing, a blade that is previously fixed in the end of the material that contains the new roll and that, almost simultaneously to the joining operation, it performs the cutting of the spent roll material so that it can be removed to continuation.

In US 3 276 710, the blade supports an adhesive tape that allows the union between the two bands of the material, describing FR 2 130 876 a improvement to this technology that allows to apply a tape of union in the upper face and, possibly, inferior of a union end to end made between two fabrics that are unwinding.

Such facilities, if they allow a splicing continuously, they are however of great complexity, and about They all occupy a large area on the ground.

Moreover, the placement of a blade in The ends of the new feed rolls, can present risks, particularly when removing said blade after realization of the splicing operation.

Other solutions are deduced from US patents. 1,724,225 and US 4,629,531. US 1,724,225 discloses fundamentally a system of change of rotation of the coil. This change is made manually. In the US document 4,629,531, the operator does not work horizontally. The installation of implementation is complex and occupies a large area in the I usually.

However, it has been found, and constitutes the object of the present invention, an improved procedure, as well as an installation that allows its implementation, which does not you can only perform a splicing operation between the end of the feed roll of a transformation installation with the beginning of the material that comes from a new roll, and without stopping of said transformation facility, but also has a great safety of use during this operational phase, as the Operator works outside the area and horizontally.

On the other hand, the procedure according to invention allows very compact installations, which occupy Very little floor space.

In addition, according to a preferred form of realization, it facilitates the placement of new rolls of material and the removal of spent rolls.

Finally, the splicing is done in such a way that the edges of the two ends of material are superimposed and arranged in the extension of each other, which provides a great resistance in the area of union.

In general, the invention relates to a splicing procedure between a raised web material on a roll and that feeds a transformation line of said material and the beginning of a second roll destined to continue the feeding when the first one is finished without stopping said line of transformation. This procedure is according to the characteristics of claim 1.

Through this procedure, the operator can ensure therefore the preparation of the roll end of replacement with total security and easily, in a time that does not cause production losses, since it is enough to place said end on the ramp that sucks the assembly that forms a press, performing the splicing operation automatically without the presence of the operator, and without stopping the production line whose feeding is done during this operational phase by reservation of material provided below the feeding post.

The invention also relates to an installation which allows the implementation of such procedure. Is installation conforms to the characteristics of the claim two.

According to a first embodiment, the position supply is arranged, if the position of the operator with respect to the vertical frame, at the rear of the splice set. This feeding stand includes means that allow you to automatically remove the empty roll and replace it with The whole new roll.

As a variant, particularly adapted to the feeding heavy material production lines, such as felts, carpets and for which the length contained in each roll is relatively scarce, which implies operations of next splice, the installation according to the invention includes two splice sets as defined above, separated one from other, and that form between them a work zone for the operator, supporting each vertical frame bypass cylinder bottom and a press that includes the sliding support table between two positions, one horizontal for end placement of the material that contains the new feed roll and the other in contact with the transverse bearing surface of said splice sets

In this embodiment, the positioning of the material in a vertical plane that passes through the cylinder of lower deflection and the transverse support surface is obtained by middle of a set (carriage) movable on top of the frame between the two jobs, including said set a diverting element and the material cutting means extracted on the roller that is being spent in order to be able to perform the splicing operation itself.

In this embodiment, the feeding of material can be made directly from two rolls arranged on each side of the vertical frames, being able to be eventually supported said rollers by cars that allow their transport.

Moreover, if the support surfaces they can be flat, they can eventually come in the form of free mounted cylinders in rotation.

Through such structure, the operator can prepare the placement of the beginning of the material that comes from the roll that will replace the one being running out, the splicing operation itself being carried out automatically after the operator has left the zone of job.

The invention and the advantages it brings are they will understand better through the examples of embodiment that indicated below, in a non-limiting manner, and which are represented by the annexed schemes in which:

- Figures 1 and 2 are side views of a splice station made in accordance with the invention it represents the manner in which the splicing operation is performed and the replacement of an empty coil with a full coil;

- Figures 3 to 8 represent a second form of implementation of the installation according to the invention, and show all the phases of the splicing cycle in such installation;

- Figure 9 represents, in elevation, a variant of an installation as shown in figures 3 a 8, a variant that concerns more specifically the surfaces of the support structures and the cutting elements.

With reference to the attached figures, and particularly to figure 1, the invention is therefore about solve the problem of splicing (joining) between the end of a feed roll (R1) of a transformation line of a material that is presented in the form of a band (1) with the beginning of the material, also designated by reference (1) of a new roll (R2) and this without stopping the transformation line of the material (1).

To do this, according to the invention, make, in a known way, a reservation of a certain length of material (1) below the feeding station represented in Figure 1 and the transformation line not shown.

According to the invention, it is arranged between the material feeding post (1) and the reserve area of the material that precedes the transformation line, a post of splice, designated by reference (2), essentially constituted by a vertical frame on the outside of which the material power supply (roll R1), and from which the other face constitutes a job for the operator. This frame supports two forwarding cylinders (3, 4), separated from each other and that they form a vertical passage for the material (11) in front of the area of job.

For the implementation of the procedure according to the invention, the splicing means, mounted on said vertical frame, include means designated by the reference general (5) that allow stopping the advance of the material (1) in the vertical presentation area between the cylinders (3, 4) and, above these means (5), a cutting assembly (6) for cut the material (1) that comes from the roll (R1) that is being running out to make the splice.

The joint assembly, proper, is constituted by a "press" that, according to the invention, includes a rotating table or ramp (7) that can take two positions, a horizontal, as shown in figures 1 and 2 which allows the placement of the end (8) of the material (1) coming from the new roll (B2), and the other, facing a surface vertical support (9) arranged transversely with respect to the material band (1), behind the latter, in the area between the first forwarding cylinder (3) and the means of cut (6).

The ramp or table (7) will preferably be a aspiring ramp that allows to keep the end of the material (1) coming from the roll (R2). Eventually, the fastening of the material could be done by other equivalent means, such as grip

When this end is positioned, the operator brings a double-sided adhesive band or a band to its surface heat adhesive

In accordance with the invention, when desired perform the splicing operation when the coil (R1) is ready if it runs out, the advance of the material (1) is blocked and the cutting operation

After cutting, the end is brought to the level of the support surface (9).

In the embodiment represented in the Figure 1, this positioning of the material is done by combining with the cylinder (4) a pressure assembly that includes a cylinder (10) that can be dragged in rotation by an engine (11).

The clamping of the material (1) against the cylinder (4) is done by a jack that puts the cylinder (10) in cylinder contact (4). Simply rotate the cylinder (10) so that the cut end is placed in front of the surface support (9).

Performed this operation, is caused for example by means of a cat (12), the rotation of the presentation table (7) of such that the end (8) coated with its adhesive strip or thermoadhesive is superimposed on the free end placed on the support surface (9).

When the union of the two ends is done by means of a thermal adhesive tape, the support surface (9) is joined to a heating plate.

In this case, to make a perfect union, the set (7, 9) is subjected to a pressure, pressure communicated by example by any appropriate means, such as a hydraulic spiral It acts on the entire length of support.

Moreover, additional blocking means (13) of the two elements (7, 9) are provided one
against other.

As can be deduced from Figure 2, these means of blocking may consist of two elements (13) in shape of flanges that allow the clamping of the assembly (7, 9) that It constitutes the press.

After splicing, the roll (R1) finished on the that the cut material located below the blade (6) is removed and the new roll (R2) is placed to Make a normal diet.

Spliced, the blocking element (5) unrolling opens and the material transformation line It is fed again.

The operator can therefore carry a new Roll and prepare a bonding phase.

Figure 2 represents in more detail the structure of a material feeding post, equipped with a splice assembly according to the invention as it has been described above and is represented in figure 1.

In this embodiment, the frame vertical that supports all the means that constitute the splice station is mounted on a main frame (20) that Supports the material feed roll (R1). Unwind This roll is obtained by means of an engine (21). Without However, it could be foreseen to perform the unwinding of the material by simple traction of the same, then mounting the roll in free rotation on an appropriate support.

When the roll (R1) has run out and has run out performed the splicing operation with the end of material (8) of a replacement roll (R2), the tube on which it has been rewind the length of material (1) located above the cutting area during the splicing operation, it is decoupled from the drive motor and removed from the machine.

Such operation is performed for example by mediation of a rotating assembly (22) driven by a cylinder (23) that transfers the spent tube to an evacuation zone carried for example by the car (24) that performs the positioning of the new roll (R2).

With respect to this new roll (R2), it is driven by an operator using a car and, after the operation of the joint, it is brought to the drag position by the motor (21) by means of a lifting assembly (25) movable along the frame (20).

Figures 3 to 9 represent a second form of realization of an installation according to the invention showing the set of phases of the splicing cycle in such installation.

In this embodiment, the installation according to the invention includes two splice assemblies (A, B) arranged facing each other and forming an area of Work for the operator.

The material feed (1) is obtained at from two rolls (R1, R2) arranged on each side of the Vertical racks that support the splicing means.

Such a design is particularly adapted when you have to perform splicing operations next to each other, particularly in the case of heavy products, such as materials intended to make molded or shaped articles which can weigh more than a hundred grams per square meter, which therefore limits the length of the product stored in roll shape

In this embodiment, each frame vertical supports a bypass cylinder (3) for the material and the set that forms a press is constituted by a part, by a suction table (7) for placing the end (8) of the material supported by the roll that will replace the one being depleting, and on the other hand a transverse support surface (9).

In this embodiment, the positioning of the material in a vertical plane that passes through the cylinder of diversion (3) and the transverse support surface (9) is obtained by middle of a movable assembly on top of the frame between the two jobs (A, B).

This carriage set (30) includes a bypass roller (31) and also supports cutting means (6) of the material extracted in the roll (R1) that is ending with in order to perform the splicing operation properly bliss

This cutting means is constituted by for example, by a rotating blade, or by a guillotine or by any other equivalent means of cutting.

With reference to figures 3 to 8, the mode of Operation of this installation is as follows.

With reference to figure 3, the material that feeds the transformation installation from the roll (R1), the carriage (30) being located on the left side of the installation. During the unwinding of the roll (R1), the operator Prepare the beginning (8) of the material (1) that contains the roll (R2) positioning its end on the aspirant table (7) of the position (B).

When the roller (R1) runs out, the carriage (30) will moves to post (B) and, during this shift, the forwarding cylinder (31) drag the material (1) to place it against the support surface (9) (figure 4).

Once this positioning is done, we proceed to block the material (1) by closing the pressure assembly (5) and performs the cutting by turning the blade (6) (figure 5). Performing this cut flush with the support surface (9), it is not It is necessary to return the material. The cut end is found positioned at the level of the transverse support bracket (9) and the material (1) located under the blade is picked up on the roll (R1) turning this upside down (figure 5).

Simultaneously to this phase, the tilting of the support table (7) that rests against the transverse support surface (9), which allows the realization of the splicing operation.

Once this is done, the power of the installation of transformation can continue normally (figure 6), being open the pressure medium (5) and the unwinder (R2) placed in functioning.

A new roll (R1) can then be taken, (figure 6) and the operator can proceed in position (A) to the material end placement of this roll for a splice later.

When the roll (R2) runs out (figure 7), the carriage moves to the stand (A) and drags the material to the post (A) where it is placed vertically.

In this position, the blade (6) cuts the material at the level of the support surface of the post (A) and the splicing operation is performed as described above (figure 8).

It should be noted that the operator is only present in the work area during the placement phase of the end of the new roll on the table or ramp surface rotating, performing all other operations automatically.

Figure 9 represents a variant of a installation such as the one described above and represented by figures 3 to 8.

In this variant, the turntable (7) carries in its end, along its entire length, a cylinder (40) mounted on free rotation

The transverse support surface (9) also it consists of a crazy cylinder mounted in free rotation and against which the cylinder (40) of the table rests.

On the other hand, in this embodiment, the cutting means are constituted by a guillotine and this similar to the blade described and represented by the figures 1 and 2.

Subsequently, as in the embodiments represented by figures 1 and 2, after cutting, the material is carries at the level of the transverse support surface by means of a motor set

Regarding the embodiment represented by figures 3 to 8, such a structure has the advantage of allowing a laminate of the adhesive element and a new start of the line before even turning the turntable to a horizontal position to make a new preparation. This therefore allows a gain of time

In all embodiments according to the invention, the rotating table or ramp can be combined with means that allow its realignment automatically with the end of the New roll of material.

With respect to the previous solutions, the procedure according to the invention and the facilities that allow their implementation, have the advantage that the operation of splicing can be done automatically, without stopping the line production, with total safety for operators.

In addition, such facilities are very compact and They take up little space on the floor. The splicing operation is performed accurately and very quickly, lasting the entire cycle a few seconds.

It should be noted that the invention is not limited to the specific examples provided above, if not covers all variants made within the scope of the invention claimed.

Claims (5)

1. Splicing procedure between a material in belt raised on a roller (R1) and that feeds a line of transformation of said material (1) and the beginning (8) of a second roller (R2) intended to continue feeding when depletes the first one without stop of said transformation line, according to which: - a material reserve zone is made below a feeding post and the transformation line of a length that allows the latter to operate during the phase of
splice. - the material (1) that feeds the line of transformation is displaced vertically between two elements of guide (3, 4) mounted on a vertical frame arranged between the feed roll (R1) and a work area for a operator, characterized in that: - the end (8) of the new roll (R2) of material it is placed on a horizontal support surface (7) in the form of aspirating ramp, covering the operator arranged in the area of work in full length, with a band of a connecting element such as a double-sided adhesive or tape thermoadhesive; - when the supply coil (R1) of the installation is about to run out, the material (1) is immobilized between the area between two guide elements (3, 4), and then cut transversely. - the cut end is then placed vertically facing a second support surface (9), which extends transversely between the guide elements below or above the cutting means; - the aspiring ramp (7) that supports the end of the material that contains the new roll, turn to reach a vertical position in front of the transverse support surface (9); - after positioning, the ramp (7) and the transverse support surface (9) are pressed against each other, causing the union of the two ends of material, overlapping these extremes in prolonging each other; - after joining and separating the aspiring ramp (7), the braking of the material is eliminated, the normalization of the Power to the transformation facility. 2. Installation for the implementation of the method according to claim 1, which includes, arranged between a feeding post of a roll of material and a line of transformation of said material, a junction post (2) that it allows to make the union with the beginning (8) of the material that It contains a new roll (R2) when the first roll (R1) runs out, including said splice set: - a vertical frame on the outside of which the material power supply is arranged, and the other face constitutes a job for the operator, supporting said frame the guide elements (3, 4) (cylinders), separated from each other and that create a vertical step for the material (1) facing to the work area; - proper splicing means mounted on said vertical frame and which include:

?

means of stop (5) of material feed (1) and immobilization of the latter in the vertical plane between the two guide elements (3, 4);

?

a set cutting (6) placed on top of the frame, immediately before the blocking means (5) of the material;

characterized in that said splicing means include: - a press that has a table or ramp swivel (7) between two positions, one horizontal inside of the area that constitutes the job position for the operator and almost at the height of the hips of said operator, which allows the placement and positioning of the end (8) of the new roll of material and placement of a joint element, such as a double-sided adhesive or thermo-adhesive tape and the other, facing a vertical support surface (9) arranged transversely behind the material band between the first guide element (3) and the cutting devices (6). - means to eventually carry the end cut from the material that feeds the level treatment line of the transverse support surface; - means that allow the table to be rotated (7) that supports the end (8) of the new roll to bring it in front of the transverse support surface (9); - pressure means that apply the rotary table (7) and the fixed support surface (9) against each other to perform the union of the two extremes. 3. Installation according to claim 2, characterized in that the roll feeding station (R1, R2) is arranged, considering the position of the operator with respect to the vertical frame that supports the splicing means, behind the splice assembly, said feeding station including means that allow the empty roll to be automatically removed and replaced by the new filled roll. 4. Installation according to claim 2, characterized in that it includes two splice assemblies, separated from each other, and which create a working area for the operator, each vertical frame supporting the lower bypass cylinder (3) as well as a press which includes the support surface (table) (7) rotating between two positions and the transverse support surface (9) of said splice assemblies, the positioning of the material (1) in a vertical plane that passes through the lower bypass cylinder (13) and the transverse support surface (7), obtained by means of a set (carriage) (30) movable in the upper part of the frame between the two work stations (A, B), including said assembly (30) a deflection element (31) and the cutting means (6) of the material extracted in the roll that is being finished in order to perform the splicing operation itself. 5. Installation according to claim 4, characterized in that the material feed (1) is obtained directly from the rolls (R1, R2) arranged on each side of the vertical frames.