ES2207360B1 - MACHINE TO REACTIVATE FOOTWEAR PARTS. - Google Patents

Abstract

Machine to reactivate parts of footwear. It includes a system of reactivation of the cut (4) of the footwear, essentially intended to achieve softening of the toe area (9) as it is a particularly critical part at the time of assembly. A fairly good and homogeneous reactivation is achieved, so that the area to be reactivated receives a stream of steam from both sides of the cut (4) simultaneously, all of which is carried out in an automated manner and in a continuous process. The machine basically includes a conveyor belt (1) that draws lasts (3) with their respective loose cuts (4), so that in one area of the machine there is a bell (12) as far as the steam reaches and inside from which the part of the cuts to reactivate runs in an extreme area of the conveyor belt (1).

Description

Machine to reactivate parts of footwear.

Object of the invention

The present invention, as expressed in the statement of this specification refers to a machine to reactivate parts of footwear intended to achieve a softening of a part of the shoe cut as consequence of applying steam in the desired area, usually in the toe area.

This softening of the shoe cut allows the operator to mount the cut and adapt it to the dimension of your last more easily.

Reactivation is carried out during the process of manufacturing as one more stage.

On the other hand, although the new machine allows the reactivation of any part of the cut, has been designed preferably to be applied in the treatment of the toe for being a part of the footwear especially critical of the time of assembly and to carry out this reactivation Automated and continuous.

Background of the invention

There are different devices and systems of reactivation of the shoe cut that all include a steam generator to humidify some parts of the cut, especially the toe area, in order to get a softening to facilitate its adaptation to the last, to then perform a better coupling and joining the floor.

These devices and systems provide a reactivation of the cut that is sometimes insufficient, which means that it is necessary to have to force the adaptation of the cut to the last, especially the area of the toe that requires greater folds.

They are also systems in which they are reached relatively low yields based on manual actions of the Operator who introduces or exposes the last and steams.

Other reactivators with greater capacity for protection are constituted by tunnels, within which lasts circulate with the impossibility of focusing the action of reactivated at a specific point of the cut.

Description of the invention

To achieve the objectives and avoid drawbacks mentioned in the previous sections, the invention proposes a machine to reactivate parts of footwear, which unlike other machines, it includes a system of applying the steam over the shoe cut, essentially in the area or part of the toe, system that achieves a good reactivation for allow easy malleability and adaptation of the area humidified of the cut on the last.

The machine comprises in principle a bench or frame where a conveyor belt of the lasts is attached, on which the respective cuts are mounted loose.

On at least one side of the bench and on one specific area of it, is arranged above the belt conveyor a longitudinal bell in general form of "C" up to where a provided steam stream rises by a conventional steam generator located at a level by under the conveyor belt.

It also includes a transport line established above the conveyor belt on one side of the same, so that transport line is determined essentially by a longitudinal chain that is also found in proximity to the straight lower branch of the bell shaped general of "C".

With this arrangement described, the last is resting on the conveyor belt carrying the cut of footwear, which in turn supports the front area on the longitudinal chain, the front part being then located of the last below that chain, while there is a separation between the last and cut that facilitates the steam bath for reactivation.

So, the advance of the tape is synchronized with the advance of the longitudinal chain so that the last and cut advance simultaneously without any movement relative between both elements so you don't lose the cut alignment with respect to its last.

When the whole of the last and cut reach the zone of reactivation or humidification, the part of the toe of the cut runs over the lower branch of the bell "C" shaped longitudinal being able to contact the same or running in proximity to said lower branch, of such so that the generated steam current that rises to said lower branch, forks in two paths, one that collides against the inside face of the cut and another that reaches the outer surface of the cut, the latter path facilitated by the upper curvature of said bell.

In this way, the cut zone to reactivate it receives steam throughout its surface, both from its outer face As per your inner face. This reactivation system provides a complete and homogeneous humidification of the cut that allows then a quick and easy adaptation on the last, as well as its mounted. All this achieving a very high productivity during the reactivation process thanks to the means of transport of The lasts and cut.

Next to facilitate a better understanding of this descriptive report and being an integral part of the same accompany some figures in which with character illustrative and not limiting the object of the invention.

Brief description of the drawings

Figure 1.- Shows a perspective view of the machine to reactivate parts of footwear, object of the invention.

Figure 2.- Shows a profile view of the machine of the invention.

Description of the preferred embodiment

An example of embodiment of the invention according to the numbering adopted in the figures.

The machine includes a conveyor belt 1 coupled on a bench or frame 2, tape that is responsible for drag of lasts 3 on which they are mounted respectively cuts 4, initially loose without sticking to the aforementioned lasts 3.

In a lateral part of the bench 2 it is defined an upper recess 5 extending down one side from conveyor belt 1 to intermediate narrowing 6 which flows into a lower channel 7 where a steam generator 8 that provides the precise ascending steam up to humidify and reactivate the anterior zone 9 of the 4 cut of footwear.

On the front wall 10 of the upper recess 5 a bell has been fixed by means of clamping elements 11 longitudinal 12 adjustable in height in general form of "C", so that in proximity to the lower branch 13 of this bell 12 runs a longitudinal drag chain 14 that advances synchronously with the conveyor belt 1.

On said longitudinal chain 14 it seats a part of the cut 4 of the footwear associated with the respective last 3, such that the area of the toe 9 of the cut 4 will remain arranged above such lower branch 13 to receive the steam stream 15 ascending upwards from the generator bottom 8.

The cut 4 reactivation system of the footwear is essentially in a terminal area of the tape conveyor 1 on one side thereof, such that the lasts 3 together with the cuts 4 associated with them advance to the time thanks to the synchronization between tape 1 and chain 14 Conveyors

The front areas 9 of the cut 4 to reactivate that run above the lower branch 13 of the bell 12 they receive the steam stream 15 in a homogeneous way and for both faces of said cut 4, as detailed below. Further, the front area of last 3 runs below the chain longitudinal transport 14 in proximity thereto.

Thus, the steam stream 15 rises upward passing through intermediate narrowing 6, to then reach the lower branch 13 of bell 12, where said current 15 forks in two paths.

The first one is directed towards the face inside of cut 4 while the other path of the stream 15 runs through the upper surface of the lower branch inclined 13 of the bell 12, so that the curvature of the same finally directs that second steam path to the outer face of the cut 4, as clearly shown in the figure 2.

The inclination of the lower branch 13 of the bell 12 is descending towards its free end near the longitudinal chain 14.

The height adjustment of bell 12 is possible thanks to slots 16 that has the same 12 and for the which the elements or screws are introduced and fixing 11 of such bell 12.

Specifically, bell 12 comprises essentially the inclined lower branch 13 and an upper cover curved 17.

Claims (6)

1. Machine for reactivating parts of footwear, comprising a frame that houses or supports at least one steam generator to humidify a part of the shoe cut, essentially the toe area; characterized in that it includes: - a conveyor belt (1) of some lasts (3) where they are freely coupled and supported cuts (4) of footwear to reactivate; - a longitudinal transport chain (14) on which the front of the cuts (4) of the footwear rests and which advances parallel and synchronously with respect to the conveyor belt (1) above it, performing all this through a continuous process in an automated way; - a longitudinal side hood (12), for whose interior runs the front part (9) of the cut (4) for humidification through the steam stream (15). 2. Machine for reactivating parts of footwear according to the preceding claim, characterized in that the steam stream (15) provided by the steam generator rises upwards through a narrowing (6) to then discharge said steam stream (15) on the lower part of the bell (12), where said current forks in two paths, one directed towards the inside face of the cut (4) and a second path directed towards the outside face of said cut (4). 3. Machine for reactivating parts of footwear, according to claim 1, characterized in that the side hood (12) is height adjustable. 4. Machine for reactivating parts of footwear according to claim 1, characterized in that the side bell (12) is fixed on a front face (10) of an upper recess (5) of the frame (2), essentially by means of threaded elements (eleven). 5. Machine for reactivating parts of footwear, according to claims 3 and 4, characterized in that the height adjustment of the side hood (12) consists of grooves (16) through which the threaded elements (11) are introduced. 6. Machine for reactivating parts of footwear according to claim 1, characterized in that the hood comprises: - a lower branch (13) descending towards its free end near the longitudinal transport chain (14); - a curved top cover (17) that directs the second vapor path towards the outer face of the part front (9) of the cut (5).