ITBO940187A1 - MACHINE FOR THE PACKAGING OF CLOTHING SUCH AS STOCKINGS AND THE LIKE WITHIN THEIR RESPECTIVE CASES. - Google Patents

Description

D E 5 C R I Z I O N E

attached to a patent application for INDUSTRIAL INVENTION entitled:

MACHINE FOR THE PACKAGING OF CLOTHING SUCH AS STOCKINGS AND THE LIKE WITHIN THEIR RESPECTIVE CASES,

The present invention relates to a machine for packaging garments such as women's stockings or similar garments in respective cases.

It is known that women's stockings are manufactured in various ways to be then placed on the market. They can be folded and inserted in suitable cardboard boxes, or they can be arranged inside respective envelopes made of transparent heat-sealable material which can be provided or mono-internally with cardboard inserts. In many cases, these casings, the simple ones without inserts, are then placed in special cardboard boxes. In particular and above all those of greater value, are packaged by folding them around a small piece or core and inserting them inside said envelopes which, in turn, are then inserted into respective cases which constitute, in addition to a protection for the respective content, also an advertising and distinctive vehicle of the contained product.

The case, therefore having to perform two important distinctive tasks, and also being destined for heterogeneous markets such as department stores or boutiques, often has different dimensions from manufacturer to manufacturer.

This differentiation of the dimensions, however, makes the problem of automatic packaging somewhat complicated, not so much for the execution of the actual packaging, as for the realization of automatic machines capable of correctly managing even very different formats.

The individual boxes are in fact obtained from single cardboard blanks equipped with weakening or preferential pre-folding lines which are folded around these lines until the individual boxes are obtained. predetermined format of the blank and the dimensions of the blanks, at most, can vary within very limited ranges of values. It follows that an automatic packaging machine designed for a given format is not able to work with blanks of different format.

For example, with a machine set up for a rectangular format it is not possible to use substantially square blanks.

Another reason for the differentiation of the boxes, which further increases the operating stiffness of the current automatic machines, is the particular geometric conformation presented by the box itself which, being substantially a parailelepiped, can have different thicknesses. In fact, they can be made practically without thickness, that is, comparable to rigid envelopes, or provided with a predetermined thickness which gives them a real parallelepiped box-like conformation. In the first case, a single series of pre-bending lines is provided for delimiting a bottom and four wings from which to obtain a front. In the second case, on the other hand, two series of pre-folding lines are required to delimit, in addition to the bottom and the wings, also four lateral sides.

This means, for the manufacturer of the packaging machines, having to have numerous machines similar to each other but operationally different as regards the format of the usable fusteellati - For the manufacturer of the hosiery, the same operational stiffness, means the impossibility of launching a case with different format from the one currently used without having a new machine: packaging machine designed for the new format.

from what has been described it is evident that the object of the present invention is to provide an automatic machine for packaging bags with stockings and similar garments which is extremely flexible so as to eliminate the aforementioned drawbacks.

The technical characteristics of the invention, according to the aforementioned purposes, are clearly verifiable from the content of the claims reported below and the advantages thereof will become more evident in the detailed description that follows, made with reference to the attached drawings, which represent an embodiment thereof purely illustrative and not limiting, in which:

Figure 1 shows a schematic plan view of the machine according to the present invention :;

Figure E illustrates a schematic plan view on an enlarged scale of the initial part of the machine of Figure 1;

Figure 3 illustrates a mocking front view of the initial part of the machine of Figure 8;

- figure 4 shows a schematic perspective view of a detail of the initial part of the machine of figures 2 and 3;

- Figures 5 and 6 show a front view and respectively a schematic perspective view of the part of the next machine and that of Figures 2 and 3 "

Figures 7 and 8 show a side view and respectively a schematic view of part of the machine subsequent to that of Figures 5 and 6;

- figure 9 shows a cross section of the machine so as to show frontally the part of the machine of figures 7 and 8;

- figure 10 illustrates a perspective view on an enlarged scale of a detail of figures from to 9

Figure 11 illustrates a perspective view of the part of the machine subsequent to that of Figures 7 to 9;

Figures 12 to 14 show a front view of the final part of the machine of Figure 1 in three successive configurations;

Figures 15 to 18 show in perspective view the folding steps of a flat blank equipped with two series of preferential weakening or pre-folding lines;

Figures 19 and 20 show a schematic front view with some parts removed of the step of filling a folded blank with a respective envelope containing a sock or similar garment; And

- Figures 21 to 24 show in perspective the steps of gumming and final folding of a folded and filled frame for making a case.

With reference to the attached figures, the machine according to the present invention is indicated as a whole with 1 and is capable of manufacturing garments, such as women's stockings and the like, into respective cases 3 made from blanks 4 of cardboard or similar material. At this point it is essential to specify that the socks, in particular, referring to what has already been expressed above, can simply be folded with or without a core, or they can already be pre-packaged inside the aforementioned wraps. In the following, for the sake of simplicity of description, reference will be made only to the case in which the socks are already pre-packaged in respective envelopes or envelopes 2, but the term envelope 2 used simply indicates the product to be packaged against a respective box 3 and this regardless of how it appears, The blanks are equipped with weakening lines or preferential pre-folding lines 5, or, more simply, pre-folding lines, which delimit in them at least a bottom 6 and four wings 7, 8, 9 (figures 1 and 2 )., One of these wings, indicated with 7, is destined to be connected to the opposite one indicated with 3. As already specified above, a single series of pre-folding lines 5 can be provided, or two series can be provided concentric and parallel lines of pre-fold lines 5 indicated with Si, internal to Sa, external ones as illustrated in the attached figures. The machine 1 according to the present invention is able to operate correctly in both cases after the foreseen interventions which will be specified hereinafter, from time to time.

Observing Figure 1 and first analyzing the edge 1 broadly, it consists, in order, of a magazine 10 for containing a stack of blanks 4 arranged completely distanced one on top of the other, of first conveyor means 11, of first folding means 12, of second conveyed means! -I 13, of a filling station 14, of third conveyor means 15 and of a counting and stacking station 19. Along the third conveyor means 15 there are provided a gumming station 16, a folding 17 you were a closing station 18,

In order to better understand the exact structure of the machine 1, its various components will now be examined in detail in the order indicated with express reference to the attached drawings purely by way of non-limiting example.

The first element of the machine 1 is the magazine 10 supported by a base 53 from which all the various components of the machine 1 are directly or indirectly supported (Figures 1 to 3). In the following, for the sake of brevity and for greater simplicity of description, numerous elements of the base 53 will not be named, such as, for example, columns and support brackets, since they do not expressly contribute to making the machine 1 inventive. of a plurality of rods or bars or profiles, of which two vertical fixed front-rear forming as many abutments 27 for the flat blanks 4d, three inclined 54 rear and two lateral 55 vertical profiles. The abutments 37 are supported by a fixed guide rod 95 arranged transversely to the direction of advance F of the first conveyor means 11 and supported, at its opposite ends, by two flat uprights 96. The uprights 96 are arranged on opposite bands of the magazine 10 and the strikers 87 can be adjustably positioned along the guide rod 94. The inclined bars 5 ': are supported by a rod 56 perpendicular to them, the opposite ends of which are fixed to respective sliders 57 adjustably positionable along respective guides 58 obtained in the base 53. The inclined bars 54 are therefore movable towards and away from the abutments 27 according to the dimensions of the extended blanks 4d. The same inclined bars 54 can be adjustably positioned along the rod 56 again as a function of the dimensions of the distal blank -so 4d- To avoid unnecessary repetitions, in the following it will be indicated only which elements can be adjustably positioned without specifying that they are structured in this way in depending on the dimensions of the flat blank 4d. The lateral sections 55 are supported by respective horizontal support rods 97 which are constrained with one end to the guide rod 95 and mutually positionable along the same. The lateral profiles 55 can be adjusted adjustably along the respective support rods (97). In the magazine 10, both the abutments 27 and the lateral profiles 55 can be adjustably positioned both since a median axis of the blanks 4d parallel to the direction of advance F of the first conveyor means 11 is used with reference.

The warehouse 10 is delimited at the bottom by a first continuous conveyor 24 forming part of the first conveyor means 11. The first continuous conveyor 24 is constituted by several belts 59, five in figure 2, made, at least externally, in material with a high coefficient of friction and wound on respective cylindrical rollers 60, at least one of which is motorized. With reference to Figure 3, the belts 59 are supported, between the cylindrical rollers 60, by support and reference means 2B consisting of idle cylindrical rollers with axes parallel to those of the cylindrical rollers 60. In this figure, four idle rollers SS are shown, one of which, the one arranged further downstream with respect to the direction of advancement F of the belts 59, is arranged in vertical alignment with the abutments 27. The lower portion 27i of the abutments 27 facing the extended blanks 4d and with which it is in contact is inclined correspondingly to the inclined bars 54, as clearly visible in Figure 3. The abutments 27 delimit with the belts 59 supported by the front idle roller 28 a slot 29 having a height substantially equal to the thickness of each flat blank 4d. The inclined bars 54 are instead placed at a distance from the abutments 27 slightly less than the corresponding dimension of the extended blanks 4d so that the latter are slightly raised by the belts 59 in proximity to the inclined bars 54. This structure is such that the belts 59 the lower stretched blank 4d slide out of the magazine 10, while the remainder are held by the strikers 27 and prevented from advancing under the action of the belts 57.

The first conveyor means 11, of which the belts 59 are part, are supported, together with the magazine 10, by the uprights 96 forming part of a bridge structure 9E1 fixed below the base 53 in correspondence with guide and locking profiles 99 of the base 53 The bridge structure 98 is adjustably positioned along the guide and locking profiles 99, which are parallel to the direction of advancement F of the first conveyor means 11. Returning to the first conveyor means 11, they comprise a second continuous conveyor 25 equipped with drive rods 26 and spaced by a certain distance from the belts 59. In practice, the second continuous conveyor 23 consists of two chains 61 wound on respective wheels for a chain 62 with axes parallel to the axes of the cylindrical rollers 60. Each chain 61 is interposed between a respective pair of mutually connected support walls 63, arranged at the edge and traversed by support and guide rods 100. L and support walls 63 define, with their upper edges, a support plane that is coplanar and consecutive to the support plane defined by the belts 59. Motorized cylindrical drive rollers 66 are provided on the same axis of the chain wheels 63 close to the belts 59 in total synchronism with the chains 61 and with a tangential speed greater than that of the advancement of the belt 59. As clearly visible in Figure 3, the upper generatrices of the driving rollers 66 are at the same height as the upper edges of the supporting walls 63. Al above the drive rollers 66 there are idle rollers 65 coated at least partially with material with a high friction coefficient maintained in contact with the underlying drive rollers 66. In practice, the coating of the idle rollers 65 is obtained by generating on their cylindrical skirt a seats in which rings 66 are housed in an elastic material with a high coefficient of friction, for example rubber. With this structure, as soon as a stretched blank 6d is carried by the belts 59 between the driving rollers 66 and the idle rollers 65, the rings 66 press the stretched blank 6d against the driving rollers 66 and cause it to accelerate along the same. direction of advancement F11 by spacing it from the subsequent blanket 4d which begins to be withdrawn from the magazine 10 .. In figure 3 the movement of the belts 59 and of the chains 61 is imparted by a single motorized chain 67 of which it is only specified that the chain wheel 66 on which it winds to move the belts 59 has a larger diameter than that, indicated by 69, on which it winds to move the chains 61 and this in order to make the latter rotate at a greater speed for the reason just described. Two vertical walls 70 are provided bilaterally to the second continuous conveyor 25 fixed to a horizontal plate 101 integral with the uprights 96. Both the walls 70 and the support walls 63 are also crossed by a positioning screw 102 with two opposite principles (Figure 2) . The positioning screw 102 is supported axially fixed and rotatably idle by the walls 70 and is screwed into the supporting walls 63. At one end of the positioning screw 102 there is a maneuvering member, such as a control handwheel 103 adapted to make it rotate around its axis in one direction or the opposite. The positioning screw 102 is screwed to the supporting walls 63 so that the chains 61 are located continuously and symmetrically on opposite bands of the median axis of the flat blanks 4d also during the actuation of the handwheel 103. Each pair of walls of support 63 therefore constitutes a support slide for the relative chain 61. The support walls 63 are spaced by a certain distance from the belts 59 and are each equipped, on its side facing the latter, with a strip 104 constituting a their extension and adapted to restore continuity between the belts 59 and the supporting walls 63 themselves.

In front of the second continuous conveyor 25 are provided the first folding means 13 which are constituted by a die 20 and a punch 51 (Figure 4). In the illustrated embodiment, in which reference is made to blanks 1 equipped with two series of pre-folding lines 5, a second punch 30 of tubular shape is provided. The die 20 has an abutment seat 31 and a through seat 32 concentric to the previous one with a vertical axis. Above the matrix 30 has a support plane 71 coplanar with the support plane of the support walls 63 and consecutive thereto. The walls of the abutment seat 31, obtained from the support surface 71, substantially coincide with the external pre-linking lines 5e, while the walls of the through seat 32, obtained on the bottom of the abutment seat 31, substantially coincide with the internal pre-bending Yes. It is evident that the bottom of the abutment seat 31 assumes an annular shape.

Referring again to the abutment seat 31, it should be noted that, bilaterally thereto and parallel to the feed direction F11 of the first conveyor means 11, two guiding and containment walls 78 are provided which act as continuation for the containment walls 70, reciprocally spaced of the corresponding size of the flat blanks 4d and slightly diverging at their ends facing the first conveyor bundles 11. The guiding and containment walls 72 allow to precisely establish the position of the extended blanks 4d with respect to the matrix PO also c and the same flat blanks 4d are advanced by the driving teeth 26 with wrong alignment. On the side of the abutment seat 31 opposite to that near the chains 61., a reference wall 73 is provided, cooperating with the guide and containment walls 72 to correctly establish the position of the extended blanks 4d. The reference wall 73 defines the positions of maximum advancement that each stretched blank 4d can reach under the thrust of the driving teeth 26 so that its pre-folding lines 5 are in vertical alignment with the walls of the seats 31 and 32. To prevent the driving teeth 26 from pushing the blanks 4d lying against the reference wall 73 and damaging them, presence detection means 74 are provided above the second continuous conveyor 35, for example electric photocells, capable of interrupting the advancement of the chains 61.

Two punches 21 and 30 cooperate with the die 20, coaxial and movable in reciprocating motion. The tubular punch 30 has a shape substantially coincident with the bottom of the abutment seat 31, while the punch S1 has a shape substantially coincident with the trimming section passes through 32. The tubular punch 30 is integral with a flat horizontal shelf 75 arranged in a rib and equipped, on one of its faces, with idle rollers 76 engaged by opposite bands with a respective vertical guide 36 integral with a column 73 of the base 53. The bracket 75 therefore constitutes a slide, indicated with 34, movable along the guide 36. The punch 31 is instead integral with the lower end of a vertical rod 79 integral, in turn, with one end of a flat horizontal shelf 80 arranged on the edge and folded in an "L" shape. The free section of the shelf 80 is parallel to the shelf 75 and is equipped, on the non-facing side, to the shelf 75, with idle rollers 81 arranged bilaterally in contact with a respective vertical guide 35 integral with a vertical column 83 of the base 53 parallel and counterfeited to the column 78 Also the bracket 80, thanks to the idle rollers 81, forms a slide, indicated with 33, movable along the respective vertical guide 35. The ends of the respective connecting rods 84 and 85 are pivoted to the slides 75 and 80. pivoted at eccentric points of respective pulleys constituting as many cranks 06 and 87 suitable for moving them with reciprocating motion. The cranks 86 and 87 are normally stationary in such a position that, when the tubular punch 30 begins to move downwards, the punch 21 begins to rise and then reverses its movement and comes into contact with the extended blank 4d as soon as the tubular punch 30 reverses its movement and begins to rise. As will be apparent hereinafter, the arm of the crank 87 6 is larger than the arm of the crank 86 since the punch 81 has to travel longer than the tubular punch 30.

Continuing the description of the machine 1, or beneath the first folding means 18 there is an end of the second conveyor means 13 which are constituted by two parallel horizontal support plates 88, arranged on the edge and supported by the base 53 along a direction perpendicular to the direction advancement F11 of the first conveyor means 11. Above the support plates 88 there is a pusher 89 supported by a vertical rod 90 passing through the base 53 in correspondence with a respective slot 91 made parallel to the support plate 8B and between the bone. The thrust 89 is moved by the rod 90 along the slot 91 between a first extreme resting position slightly rearward, observing in plan, with respect to the through seat 33, so as to allow, after the punch 31, the lowering of a folded blank 4r in front of it as will be seen below, and a second extreme release position, in which the folded blank 4r is arranged in vertical alignment with the filling station 14. Bilaterally the support plates 88 are provided with means for guide 33 which can be positioned to move towards or away according to the size of the folded blank 4r. The guide means 33 define tracks 33 for guiding the upper ends of the wing 7 to be glued and of the one B facing it! . The guide means 33 are constituted, below the metric 20, by a plurality of vertical columns 93 which delimit the through seat 33 and, subsequently, by two vertical planes 93 equipped with lateral flaps 94 integral with them and defining the tracks with them 33. As can be seen in Figure 6, the support plates 88 are provided only in correspondence with the columns 98, and, in order to guarantee the support of the folded blanks 4r also in correspondence with the vertical planes 93, the pusher 89 has, at the bottom and at the front with respect to its direction of advancement, two support strips 105 coplanar with the support plates 28 and arranged bilaterally in one direction. At their ends close to the columns 92, the vertical planes 93 and the side flaps 74 converge in accordance with the direction of advancement of the pusher 89 and of the folded blank 4r so as to provide a certain opening towards the tracks 83. The side flaps 94, in in particular, they have, for a short section, at the bottom, a narrowing 106 suitable to cause a folding of the wing 7 to be glued and of the one 8 facing it of the folded blank 4r towards the interior in contact with the vertical planes 93. Between the columns 98 and the vertical planes 93 two horizontal deviators 107 are provided, curved upwards from the side of the columns 92, suitable for intercepting the wing 7 to be glued and of the one 3 with the counterfaced nssa of the folded blank 4r and to cause a lowering (figures 5 and 6).

The vertical planes 93 are mutually connected at their opposite ends by means of a pair of horizontal spacers 108 equipped, in contact with the vehicle planes 93, with extensions 109 facing each other and aligned with the extensions 109 of the other spacer 108. Between the spacers 108 are two horizontal support surfaces 37 are provided, pivoted to the extensions 107 around axes parallel to each other and perpendicular to the direction of advancement of the pusher 89. Each of the support surfaces 37 is pivoted to a respective spacer 108 as a first kind lever and, in proximity of its end close to the respective spacer 108, is pivoted at one end of a fluiriodin-micromic cylinder 110 and air, the other end of which is pivoted to the upper end of a column 111 integral below the respective spacer 108. The fulcrum axes of the supporting surfaces 37 with respect to the spacers 10G are arranged in such positions that, here When a folded blank 4r reaches below them formed in their configuration of reciprocal coplanarity and they are rotated downwards by the fluid-dynamic cylinders 110, the same supporting surfaces 37 act internally on the side wings 9 and open them as will result evident later. The vertical planes 93 support, between the fluid-dynamic cylinders 110 and above the support planes 37, a vertical orienting wall 113 shaped like a "C" and consisting of two lateral planes 112c parallel to each other and substantially arranged above the fulcrum axes of the support surfaces 37a from a front plane 112f arranged in contact with the vertical plane 93 intended to come into contact with the wing 7 to be glued. The distance between the lateral planes 112c is slightly greater than the corresponding size of the envelopes 2 which must come packaged.

In vertical alignment with the compartment delimited by the orienting wall 112 there is a presser 33 movable at height and supported by the lower end of a vertical support rod 113. The support rod 113 is supported, axially sliding by means of a plurality of idle rollers 114, by a crosspiece 115 integral with the upper ends of a pair of uprights 116 of the base 53. The free end is connected at the bottom to the support rod 113. of the stem 117 of a fluid-dynamic cylinder 110, for example with air, supported by a U-bolt bracket 119 integral with the crosspiece 115. The U-bolt bracket 119 is arranged astride the support rod 113 so as to maintain the fluid-dynamic cylinder 118 parallel to the same support rod 113.

The uprights 116 also support, by means of a shelf 130, the vertical planes 93 and, directly, one end of a continuous conveyor 121, for example a belt or belt conveyor, for feeding the envelopes 2 to be packaged. The vertical planes 93 and the continuous conveyor 121 are arranged on opposite bands of the uprights 116. The continuous conveyor 121 advances the envelopes E along a direction perpendicular to the direction of advancement of the second conveyor means 13 and parallel to the direction of advancement of the third conveyor means 15. Above the continuous conveyor 121, the crosspiece 115 supports presence detection means 122 adapted to detect the presence of an envelope 2 on the continuous conveyor 121 and to operate the entire machine 1 in the manner and with the methods that will be described later. .

The third conveyor means 15 referred to now are constituted by a pocket conveyor 40, which consists of a pair of side-by-side catones 12 '+ provided with a plurality of drawers 39 or pockets which are equally spaced apart. The chains 124 are arranged with their straight horizontal and superimposed sections and are moved with a continuous motion but such as to be alternative as will be described below and with an advancement pitch equal to the passage between the drawers 39. The drawers 39 are each made up of a pair of "L" shaped sections 126 facing each other and fixed to respective blocks 127 locked on the chains 124 at predetermined regular distances according to the dimensions of the folded spindles 4r. The horizontal sides 126s of each pair of sections 126 are mutually coplanar at least along the portions of the chains 124, while the vertical sides 16c of the same are mutually spaced substantially by the corresponding dimension of the bottom 6 of the folded blanks 4r. The horizontal sides 126s perform a support function towards the folded blanks 4r, while the vertical sides 186c perform a containment and advancement function of the same. The dimensions of the conveyor and pockets 40 are such that the horizontal sides 126s are located at a lower level than the bottom 6 of the folded blanks 4r supported by the spacer 89. The overall dimensions of the sections 186, measured transversely to the chains 184, is less to the corresponding dimension of the folded blanks 4r for the reason which will become evident later.

Two sides of the pocket conveyor 40 are provided with two small walls 183 for containing the side wings 9 of the folded blanks 4r: in correspondence with the filling station 14 one of the small walls 183 is replaced by the shelf 180. The small walls 133 are parallel and vertical to each other and are supported, by means of horizontal bars 183b, by respective slides 125 supported by the base 53 by support bars not illustrated. The slides 185 can be adjustably positioned in reciprocal approach or distancing with respect to the median axis of the folded blanks 4r moved by the pocket conveyor 40. The walls 123, due to the dimensions with the profiles 126, are located at a certain distance from them and leave free an interspace 135 for the reason that will become evident later on.

Subsequently to the filling station 14 there is provided the gumming station 16 spaced from it by the pitch between the adjustments 39 (Figures 7, 3, 9 and 10). Within the gumming station 16 gumming means 41 are provided supported by a pair of slides 128 and 129. The first of these slides, indicated by 128, rigidly supports the gumming means 41 by means of a horizontal bracket 130 and is movable at height along respective vertical guide rods 131 integral with the other slide, indicated by 129- The slide 129 is movable horizontally along respective horizontal guide rods 132 supported by a frame 133 integral with the base 53. As regards the movements of the slides 123 and 129 , the slide 128 is normally stationary in an intermediate rest position and is mobile, by means of respective motor means not indicated, between two ends, of which a lower operative and an upper return one. The slide 129, on the other hand, is movable, by respective motor means not indicated, between two extreme positions, one of which is at rest close to the first conveyor means 11 and one at maximum distance. Fixed at the bottom of the frame 133 is a collection gutter 134 facing the gumming means 41 and adapted to collect any glue material dispensed by the gumming means 41 and not intercepted by the wing 7 to be glued to the folded blanks 4r. The gumming means 41 are not further described as they are of a known type which can be programmed according to specific requirements.

Downstream of the filling station 14 there is also a folding station 17 which coincides, in the illustrated embodiment, with the gumming station 16. Within the folding station 17, second folding means 42 and third folding means 43 are provided. The second folding means 42 are constituted by two strips 136 movable through respective notches 137 made in the small plates 133. Each strip 136 is integral with an arm of a lever 138 with two arms supported by the respective slide 185 and pivoted thereto around an axis parallel to the direction of advancement of the third conveyor means 15. One end of a connecting rod 139 is pivoted to the other arm of the lever 130, the other end of which is pivoted to a slide 140 supported by a respective horizontal guide 141 formed in the slide 125 along a direction transversal to the direction of advancement of the third conveyor means 15.

The slide 140 kinematically connected, by means of a connecting rod 142, to the vertical or yielding arm 143c of an "L" lever 143. It should be noted that the connecting rods 139 and 142 are almost parallel to the horizontal guide 141. The "L" lever 143 is supported by the slide 125 and is pivoted thereto around an axis parallel to the direction of advancement of the third conveyor means 15. The horizontal arm 143m or motor of the L-shaped lever 143 supports an idle roller 144 housed in an engaged cam follower within a respective horizontal seat 145, parallel to the horizontal guide 141 and formed in a slide 146. The slide 146 is single, it is arranged between the slide 135 and is supported by a vertical guide 147 integral with the bearing 53. The slide 146 is kinematically connected , by means of a vertical link 148 to an arm of a lever 149 of the first kind pivoted to the base. 53 around an axis parallel to the fulcrum axis of the "L" lever 143. The other arm of the lever 149 is kinematically co connected, by means of a connecting rod 150, to one end of a crank 151 pivoted, at its other end, to the base 53 around an axis parallel to the fulcrum axis of the lever 149. At an intermediate point, the crank 151 supports a roller idler 159 slidingly engaged within a respective cam seat 153 obtained on one face of a disc 154 rotating around an axis parallel to the fulcrum axis of the crank 151. The structure described here allows, by operating the crank 151, the rotation of the strips 136 between an extreme rest position external to the side walls 183 and an extreme operating position, in which they are inserted within the respective notches 137 of the side walls 123. The use of the seats 145 allows a mutual moving away or approaching of the slides 125 leaving unchanged the positions of the strips Ir 136 with respect to the walls 123 ,. A movement of the slides 125 in one or the opposite direction causes only a corresponding sliding of the idle rollers 144 within the respective seats 145.

Examining now the third folding means 43, they consist of two "L" -shaped arms 155 arranged bilaterally to the chains 134. Each arm 155 is supported by a horizontal bracket 156 carried by a block 157 integral with a chain 153. The chain 150 it is supported by the 125 cd slide and is arranged below it. The chain 158 is also arranged parallel to the chains 124, and the bracket 156 extends horizontally and transversely to the chain 158 towards the chain 134. Each arm 1556 supported by the respective bracket 156 so as to be moved by the respective chain 158 within the gap 135. Each chain 158 is motorized by motor means, not illustrated, suitable for making them complete a full revolution for each activation of the machine cell 1 in the manner that will be described below with reference to the operation of the same machine 1.

The frame 133 supports, from its opposite side to the one in which the gumming means 41 are provided, a horizontal shelf 1S9 crossed by a pair of vertical and parallel rods 160 (Figure 11). A horizontal plate 161 is fixed to the lower ends of the rods 160, to which the free end of the stem 16 is connected to a fluid-dynamic cylinder 162, for example pneumatic, supported by the bracket 159. The plate 161, which constitutes a pressing element, t arranged vertically aligned above the pocket 39 following the stationary one at the gumming station 16. Looking more closely at the shelf 159, it is integral with a vertical bar 77 connected to a bracket 82 integral with the frame 133. The vertical bar 77 is equipped with a longitudinal slot 165 crossed by a screw 166 screwed into the bracket 82. This also has a seat 167 in which the vertical rail 77 is housed. can be positioned at a height along this seat 167. The adjustment of the height position of the vertical bar 77 leads to an adjustment of the height position of the plate 161 i According to the thickness of the cases 3. A crosspiece 168 is fixed at the bottom to the shelf 159, to which two elongated plates 169 constituting fourth folding means 164 and intended to intercept the wing 7 of each folded blank 4r are fixed at the bottom. The elongated plates 169 are arranged and operate each between a partition 183 or the profiles 126 of the pockets 39. The elongated plates 169 begin at the direction of the gutter 134 (see Figure 7), which is also part of the fourth folding means 162 ·. The elongated plates 169 are initially tapered so as to cause a gradual folding of the wing 7. The minimum height of the elongated plates 169 continuously coincides with the minimum height reached by the i. plate 161. The coupling between the crosspiece 163 and the shelf 159 allows an adjustment of the position of the elongated plates 169 along the direction F15 of advancement of the pocket conveyor 40 as indicated by the slots 170 made in the shelf 159.

Subsequently, at the closing station 18, each pocket 39 reaches the counting and stacking station 19 within which elevator means 44 and support hubs 45 are provided as well as transfer means 171 (see Figure 1) 1 lifting means 44 consist of two comb elements 46 arranged on opposite bands of the pocket conveyor 40 and with their own teeth 47 facing upwards. Each of the comb elements 46 is supported by one of the slides 135 and is movable, on the action of motor means not illustrated, between a lowered rest position, in which I allow the advancement of the pocket conveyor 40 with the respective cases 3, and a raised position. During their lifting, the comb elements 46 intercept, with their own teeth 47 and from opposite bands of the pocket 37 stationary at the counting and stacking station 17, the opposite ends of the case 3 contained in this pocket 39.

The support means 45, on the other hand, are constituted by two walls 47 arranged by opposite sides of the belt conveyor 40 and of the walls 123 and are each supported by a respective slide 135. The walls 49 are equipped with respective seats 4B vertically aligned with the teeth 47 of the comb elements 46 and toothed elements 172 made in the walls 133 within the counting and stacking station 17. Each wall 49 is pivoted to two vertical brackets 173 integral with the respective slide 135. Externally to each wall 49, the brackets 173 support fixes an abutment wall 174. Each wall 49 can oscillate, with respect to the brackets 173, act and an axis parallel to the direction F15 of advancement of the pocket conveyor 40 on the action of respective elastic means 50 interposed between the bait and the respective . stop 174 (see Figures 1 and 12 to 14). The elastic means 50, for example compression springs, push the walls 49 against each other. the limit position that can be reached by the walls 49 under the thrust of the elastic means 50 is determined by the teeth 172 of the side walls 153 housed within the seats 4B of the walls 49 themselves. As illustrated in Figures 1 and 12, the walls 49 are arranged in partial vertical alignment with the comb elements 46 when they are in their limit position.

Between the comb elements 46 are provided the transfer means 171 constituted by a vertical blade? 175 substantially vertically aligned with the chains 124 and integral with the free end of the stem 176s of a fluid-dynamic cylinder 176, for example pneumatic, supported by the base 53. The stroke of the stem 176s is adjustable according to the size of the cases 3 measured along the direction of advancement F15 from the pocket conveyor 40. The vertical blade 175 is movable, opposite the fluid-dynamic cylinder 176, between a rear rest position and a forward transfer position as will be described hereinafter.

Also part of the machine 1 are numerous other elements and organs indispensable for its correct functioning which have not, however, been illustrated or indicated or which will be indicated hereinafter. These elements and members do not directly affect the inventive characteristics of the machine 1 and have therefore been neglected for pure simplicity.

As can clearly be seen from Figure 1, the machine 1 as a whole has a structural-operational development "C". In particular, the warehouse 10, the first transport bundles 11 and the first folding means 12 constitute a first operating line indicated with 200. The folding station 14, the third transporter means 15, the counting and importing station. piling 19 constitute a second operating line indicated with 201 which is arranged parallel and flanked to the first 200 and are mutually, structurally and operationally, connected to each other, between the first folding means 12 and said folding station 14 by means of the second conveyor means 13 which are therefore arranged perpendicularly to the same operating lines 200 and 201.

With reference now to all the attached figures, the machine 1 operates in the way that will now be described with reference to blanks 4 equipped with two series of internal and external preferential pre-folding lines 5i, 5e. Before starting with the description of the operation, it is important to specify that the machine 1 must have been adjusted or arranged to operate with blanks 4 having a certain format, that is to say certain transversal measures. This means that, according to the size of the blanks 4 measured transversely to the directions of advancement F11 or F15, the appropriate adjustments have been made as regards the positions of the side profiles 55 relative to the magazine 10, of the handling units 163 relative to the first conveyor means 11 and of the slides 125 relative to the adjustable positionable members located along the third conveyor means 15. According to the size of the blanks 4 measured along the same directions of advancement F11 or F15, which are parallel to each other, the position of the inclined bars 54 is adjusted relating to the magazine 10 and to the entire bridge structure 98. The latest adjustments concern the height position of the bracket 159 as a function of the height of the boxes 3 and the length of the stroke of the rod 176s of the fluid-dynamic cylinder 176 as a function of their size 3 pencil cases measured along the direction F15. In addition to the adjustments, replacements are necessary, namely those of the first folding means 18, of the second conveyor means 13, of the supporting surfaces 37, of the presser 38, of the orienting wall 113, of the second folding means 42 and of the third folding means 43. it is necessary to adjust or replace the pockets 39 of the pocket conveyor 40. All? these adjustments and replacements may obviously be necessary or not or only partially according to the needs that arise. It should be noted that, in practice, -.ai provides for an adjustment of those elements responsible for the advancement of the blanks 4 or of the boxes 3 according to the direction (F11 or F15) joining the wing 7 to be glued and the one 8 facing it, while the replacement of those interchangeable elements is provided for forming the blanks 4 or for advancing them along a direction (F13) perpendicular to the preceding one. This allows you to adjust with extreme precision those elements that have to perform very delicate operations such as bending, and to adjust with a certain approximation those elements that need to perform interventions that are not excessively precise, such as some movements. In practice, the replacement of the interchangeable elements will be carried out by specialized personnel for this purpose, while the adjustments can be carried out by the personnel assigned to control the machine 1.

Starting from these assumptions, the machine 1 is structured in such a way as to perform an operating cycle for each envelope 2 that is fed to it. At the end of each operating cycle and before the start of the next cycle, a period of time elapses between the ascents which depends not on the operating speed of the machine 1 but on the speed at which the envelopes 2 are fed to the machine 1. or elements of the latter are found in respective predetermined configurations or positions. The belts 59 have partially extracted the lowest blank 4-d from the bottom of the magazine 10 (see Figure 1 where the blank 4d is illustrated with a discontinuous line). The driving teeth 26 maintain an extended blank 4d abutting against the reference wall 73 (see Figure 1 where the extended blank 4d is illustrated with a discontinuous line) so that the preferential pre-linking lines 5 of the extended blank 4d are vertically aligned with the walls of the abutment seat 31 a of the through seat 32 or, consequently, to the external profiles of the punch 21 and of the tubular punch 30 which are raised by the die 20 (see Figure 15). The pusher Θ9 is in its rearward position. The support surfaces 37 and the presser 38 are in the respective raised positions so that a folded blank 4r is supported underneath them solely as a result of its eiastic return which carries the wings 7, 8, 9 to spread apart so that the wings 7 and 8 press against the respective lateral flaps 94 (see Figure 19). The strips 136 are located outside the walls 123 and the arms 155 are in their position further downstream with respect to the direction of advancement F15 (see Figure 7). The gumming means 41 are located in proximity to the first conveyor means 11 and at an intermediate level between the two extremes that they can reach. Plate 161 is in a raised position (see Figure 24). The comb elements 46 are in a lowered position (see Figure 12), and the vertical blade 175 is outside the space occupied by the comb elements 46 (see Figure 1). The position assumed by the pocket conveyor 40 has not been described since each of its pockets 39 is located in correspondence with an operating station.

As soon as an envelope 2 is fed by the continuous conveyor 121 to the area of action of the presence detector means 122, these detect the presence of the envelope 2 and transmit a signal to control and command means of the entire machine 11. which make them complete an entire operating cycle. In the coguit, to provide a more continuous description, the operations to which each blank 4 is subjected will be described as if it underwent these operations during a single operating cycle s in reality these operations are performed on each blank 4 in the arc of several operating cycles, but for each operating cycle for each of the operations which will now be described there is a blank 4 which undergoes this operation. The lower flat blank 4d is completely removed from the magazine 10 by the belts 59 and is pushed dr. they are above the strips 104 and in contact between the driving rollers 64 and the idle rollers 65. These impart an acceleration to it which moves it away from the subsequent stretched blank 4d which, in the meantime, is removed from the base of the stack of outstretched blanks 4d housed within the magazine 10. The drive rollers 64 and the idle rollers 65 push the blank 4d on the supporting walls 63 at least up to their center distance as shown in Figure 3. Subsequently the drive teeth Eó intercept the blank 4d and they advance until it stops against the reference wall 73 (see figure 3). The motorized chain 67, and with it both the driving teeth 36 and the belts 59, is stopped without flattening the most advanced of the presence detection means 74 detects the absence of the distant blank 4d below it. The use of two presence detector means 74 is necessary due to the fact that below the most advanced of them there is no stretched blank 4d: the first of the presence detection means 74 detects the advancement of a stretched blank 4d and activates the second with a certain delay necessary for the stretched blank 4d to reach the nexus of the presence detecting means 74 at the speed imparted to it by the driving teeth 36. The guide and containment walls 73 guide and correct the position of the stretched blank 4d up above the die 30. At this point both the crank 86 and the crank 87 are set in rotation. The tubular punch 30 is moved in advance towards the stretched pin 4d with respect to the punch Si in the sense that the tubular punch 30 is lowered and moved towards the flat blank 4d (see Figure 15 where the arrow F30 relating to the tubular punch 30 points downwards), while the punch 31 is initially lifted and moved away from the same stretched blank 4d (see again Figure 15 where the arrow F21 relating to the punch 31 points upwards). While the tubular punch 30 continues to descend, the punch 31 reverses its direction of advancement and also begins to descend (see figure 16). As soon as the tubular punch 30 has folded the blank 4d around its external pre-bending lines 5e in contact with the upper edges of the side walls of the abutment seat 31 and reverses its direction of advancement just before coming into too much contact with the bottom of the same seat 31 abutting, the punch 31 is close to intercepting the bottom 6 of the partially folded blank 4r (see Figure 17). The punch 31 continues its lowering stroke, folds the folded blank 4r around its pre-binding lines. 5i in cooperation with the side walls of the through seat 35 and lowers it until it comes into contact with the support plates ΘΘ (see figures 3 and 13). The elastic return of the folded blank 4r in its extended configuration is prevented by the tracks 23. The wings 7 and 8 in fact expand elastically and are inserted into the tracks 23 which prevent them from further stretching and from connecting the distended blank 4d (see again the figures 3 and 18). The pusher 89 is moved towards its forward position and is returned to its rest position while both the punch 21 and the tubular strut 30 are returned to their respective rest positions. During the stroke of the pushers 89 the folded blank 4r is supported first by the support plates 88 then by the support strips 105 of the spiriter 89 itself. During the same course of the pusher 89 the folded blank 4r is first lowered to a determined height by the deviators 107 (see Figure 5), then its wings 7 and 8 are guided within the tracks 88 defined by the vertical planes 93 and by the side flaps 94 up to below the presser 3B (see again figure 5 and also figure 19). The elastic return of the folded blank 4r and its limited weight are such that the folded blank 4r itself remains stationary in this position without any support but only thanks to the elastic force exerted by the wings 7 and 8 against the side flaps 94 as illustrated in figure 6 ) After an envelope E has been unloaded from the continuous conveyor 181 onto the support planes 37, the fluid-dynamic cylinders 110 and 118 are activated in synchrony in order to cause the lowering of the support planes 37 and of the presser 38. support 37, in addition to allowing the descent of the husta 2, provide to spread the lateral wings 9 of the folded blank 4r so as to avoid any possible interception of the envelope P by the same lateral wings 9 (see figure 5 where the planes support 37 are illustrated with a discontinuous line in a partially lowered intermediate configuration thereof). The presser 3Θ, in addition to ensuring the descent of the envelope B as far as the bottom 6, causes, subsequently and possibly in combination with suction means arranged and operating under the folded blank 4r, the lowering of the folded blank 4r and of the envelope E into it is contained up to within a pocket 39 fixed below it by the pocket conveyor 40 (see Figure SO). During the insertion of the folded blank 4r into the underlying pocket 39, its side wings 9 are slightly folded towards each other by the small walls 123 (see figure 6) and its remaining wings 7 and 8 they are also folded towards each other by the vertical sides 136c of the sections 126 as illustrated in Figure 20). Once the folded frame 4r has reached the gumming station 16, the gumming means 41 are lowered and moved from one side to the other of the pocket conveyor 40, then raised to their extreme raised position and brought back from the other part of the pocket conveyor 40, then returned to their rest position at an intermediate level. During their travel at their minimum height, the gumming means 41 are activated and apply a continuous or discontinuous or dot layer or any adhesive material on the wing 7 (see Figure 21). Subsequently the disc 154 completes a whole revolution and brings the strips 136 to intercept the side wings 9 and to fold them towards the bottom 6 of the folded blank 4r (see: Figure 22). Immediately afterwards both the pocket conveyor 40 and the chain 153 are moved. This is first accelerated so that the arms 155 reach and intercept the wing 8 until it is folded towards the bottom 6 of the folded blank 4r (see figure 23), then decelerated so that the blank 4r thus folded begins to free itself from the arms 155 while the wing 7 is intercepted by the gutter 134 first and by the elongated plates 169 subsequently and folded towards the bottom 6 as shown again in figure 23. In this way the the lateral sides 9 are r. when the case 3 is completed, be inside the case 3 itself and surmounted by the wing 8 and the wing 7. The wing 7 is then glued exclusively to the wing 8. If, for reasons of highlighting a possible break-in , if it is desired to make the connection between the various wings 7, 8, 9 more stable, it is possible to anticipate the movement of the arms 155 with respect to that of the strap 136 so that the side wings 9 are found, once the case 3 is completed , between the inner wing 8 and the outer wing 7 and the latter is glued both to the wing 8 and to the side wings 9. The case 3 is made to advance tightly between the lower horizontal sides 126s and the upper elongated plates 169 until you go below the plates 161 which compresses it to complete the drying of the adhesive material applied to the wing 7 (see Figure 24). As soon as the case 3 reaches the counting and stacking station 19, the comb elements 46 are gradually raised (see Figure 12 where the raising of the comb elements 46 is indicated by the arrows F46). The rod 3 causes, during its lifting, the reciprocal distancing of the walls 49 against the reaction of the elastic means 50 (see Figure 13). When the case 3 goes beyond the walls 49, the case 3 above up to that moment supported by the walls 49 descends to rest on the case 3 and the walls 49 come together again thanks to the elastic means 50 and thanks to their seats 43 that they will receive teeth 47 of the comb elements 46 (see Figure 14). When appropriate detection means detect that the stack of cartons 3 supported by the walls 49 has reached the predetermined number, the fluid-dynamic cylinder 176 is activated which, by means of the vertical blade 175, moves the stack of cartons 3 away from the pocket conveyor 40 (see Figure 1 where the movement of the vertical blade 175 is highlighted by the arrow F175 and by the final position of the same vertical blade 175 illustrated with discontinuous line).

It is therefore perfectly evident that the machine 16 is decidedly flexible and its bulk is extremely limited. The reduction of the overall dimensions is made possible by the fact of having provided only advances along parallel and neighboring directions with a simple transfer along a direction perpendicular to the previous ones.

It should be noted that in the above description no mention has been made of a possible station for stamping the blanks 4. It can be provided under the strips 104.

The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the inventive concept. Furthermore, all the details can be replaced by technically equivalent elements.

Claims (18)

1. Machines for the packaging of garments, such as socks and the like, for example pre-packaged in respective casings or envelopes (2), in respective cases (3) obtained from flat blanks (4) equipped with weakening lines or preferential pre-folding (5) which delimit a bottom (6) and four wings (7, 8, 9), of which one (7) will be destined to be glued to the one (8) facing them and two (7) lateral ones, characterized by the fact of including a warehouse (10) of blanks (4) where they are spread out and stacked on top of each other, first conveyor means (11) movable between a pick-up position located below the said warehouse (6), in which they pick up from from below, the first extended blank (4d), and a re-entry position, in which they feed the extended blank (4d), picked up and oriented with its own wing (7) destined to be glued arranged upstream with respect to the direction of advancement (F11) of said first trans carriers (11), with first folding means (12) acting along a vertical direction and able to fold it around the above said weakening lines (5) making it assume a box-like shape open at the top (4r), second moving means (13) , along a direction (F13) perpetrating with respect to the direction of advancement (F11) of said first conveyor hubs (11), between a receiving position located below said first folding means (12) and a release position located within of a filling station (14), in correspondence with which in said folded blank (4r) a respective torso (E) is inserted, third moving means (15), along a direction of advancement (F15) parallel but with opposite direction to that (F11) of said first conveyor means (11), between said filling station (14) and subsequent gumming stations (16) of said wing (7) intended to be glued, folding chin (17) of the wing (8) facing the latter and of the lateral ones (9), for folding (10) of said glued wing (7) and closing said folded blank (4r) so as to make a relative case ( 3) and a final counting and stacking station (19) of said cases (3) from below, said first folding means (12) being constituted by at least one fixed die (20) and a relative punch (El), the said punch (21) being vertically movable and intercepting, during each of its travel, between an extreme raised position of the repeat and a lower feed position of a folded stellatn (4r) to the underlying second transporter means (13) , an extended blank (4d) and folding it around its said preferential pre-linking lines (5) in contrast with the relative matrix (30), the said second conveyor means (13) being bilaterally delimited by respective guide means (53) act to define two guide tracks (23) of the upper edges of the wing (7) intended to be glued n of that -! (8) opposite to it of each said folded blank (4r) so as to keep them mutually open, up to said filling station (14), the said magazine (10) being dimensionally adjustable transversely according to the corresponding dimensions of said blanks extended (4d), the means (11 and 15) for moving or containing the blanks (4) and the cartons (3) along the directions of advancement (F1 and F15) of said first conveyor means (11) and of said third conveyor means (15) being adjustably adjustable or transversely positioned according to the corresponding dimensions of the flat (4d) or folded (4r) punched-out (4r) and the cases (3) which run through them and referring to a median direction parallel to the relative direction of advancement (F1 and F15) and coinciding with the corresponding median axis of said blanks (4) and said cartons (3), said counting station so-called stacking or (17) Gassing also adjustable transversally dimensionable according to the dimensions of each case (3) that runs through it and referring to the direction median-parallel to the direction of advancement (F15) of the said third conveyor means (15), the means (20, 21, 1S) designed for folding the said sides (4) and forming the said cartons (3) being interchangeable according to the dimensions of each blank (4) or each carton (3) on which they intervene. 8. Machine according to claim 1, characterized in that said magazine (10), said first transport hubs (11) and said first folding means (13) constitute a first operating line (800); that said folding station (14), said third conveyor means (15) and said counting and stacking station (19) constitute a second operating line (301) arranged parallel and side by side! to the first (300) and are mutually, structurally or operationally, connected to each other between said first folding means (13) and said folding station (14) by means of said second conveyor means (13) arranged perpendicular to the same operating lines ( 800, 301) 3. Marchina according to claim 1 characterized in that said first conveyor hubs (11) consist of at least a first continuous conveyor (34) with a high coefficient of friction arranged below said magazine (10) and a second continuous conveyor (25) with dragging teeth (26) aligned with, preceding and advancing with a greater speed than it to distance the flat blank (4d) received therefrom, said first continuous conveyor (24) cooperating with at least one abutment (27 ) in front of said magazine (10) or able to delimit, together with said first continuous conveyor (24) made vertically fixed by respective reference support means (28), a slot (29) able to allow the passage of a single blank at a time, the second continuous conveyor (25) being made in two separate handling units (163), side by side, symmetrically arranged and positioned with respect to the 'median axis of the same second continuous conveyor (25) coinciding with the corresponding median axis of said extended punches (4d), positioning and reference means (72) being provided bilaterally to said first folding means (12) and parallel to the direction of advancement (F11) of. said first conveyor means (11) for correcting the orientation of said flat blanks (4d) made to advance by the latter up to the range of said first folding means (12), presence detection means (74) being provided for vars the presence of each flat blank (4d) in the context of said first folding devices (12) and in contact with respective abutment and reference means (73) and to interrupt the operation of said first conveyor means (11). 4- Machine according to claim 1, in which said blanks (4) are equipped with two concentric series of said internal and external preferential folding lines (5i, 5e) for the production of cases (3) having a paralytic] epipreda conformation, characterized in that said first folding means (12) comprise, in addition to said punch (21) and said die (20), a tubular punch (30) coaxial to said punch (21) and movable in advance with respect to this last towards the said matrix (20), the latter having an abutment seat (31) able to cooperate with the said tubular punch (30) to cause the folding of each flat blank (4d) around its external preferential pre-folding lines (5e) and a through seat (32) coaxial to the abutment one (31) and able to cooperate with said punch (21) to cause: the folding around its internal preferential pre-folding line (5i) of said blanket (4d) already folded at back to its external preferential pre-folding lines (5a) and to guide it thus folded towards the underlying said second conveyor means (13). 5. Machine according to claim 4, characterized in that said punch (21) and said tubular punch (30) are supported by respective slides (33, 34) supported by respective vertical guides (35, 36) c are noble along they perform a forward or a return stroke for each unfolded blank (4d) to be folded. 6. Machine according to claim 1, characterized in that within the said filling station (14) two support surfaces (37) are provided, which can be moved above the position reached by the folded blank (4r) within the scope equipped with filling station (14) by means of said second conveyor means (13) and oscillating in synchronism between an upper support position, in which they are mutually coplanar so as to constitute a plane for receiving and supporting an envelope (2) , and a lower release position, in which they, after having been counter-rotated until they come into contact and contrast with the said side wings (7) of the folded blank (4r) below, let the said envelope (2) fall onto the bottom (6 ) of the latter t and a presser (30) movable with reciprocating motion along a vertical direction and movable downwards in phase synchronism with the oscillation of said support surfaces (37) towards their position of re I thus allow the said envelope (2) to be pushed against the bottom (6) of the folded blank (4r) or so as to push both of them downwards into a pocket (3?) of a continuous pocket conveyor (40) constituting the said thirds conveyor bundles (15), the said pocket conveyor (40) advancing, for each folded blank (4r) received, by an amount equal to the pitch between the straight pockets (39). 7. Machine according to claim 1, characterized in that said gumming (16) and folding (17) stations coincide and comprise gumming means (41), moved transversely to said third conveyor means (15) from one side to the other. another of the same with returns to the initial position, second folding means (45), arranged bilaterally to said third conveyor means (15), were adapted to fold said lateral wings (9), and third folding means (43), also arranged bilaterally to said third conveyor means (15) and movable in agreement with said third conveyor means (15) and in synchronism with them for the folding of the wing (S) facing away from the wing (7) intended to be glued, said second folding means (4P) and said third folding means (43) being supported by two respective slides (155) arranged on opposite bands of said third conveyor means (15) and also supporting, bilaterally to the latter, two small walls (133 ) for containing the folded blanks (4r) and the cartons (3), fourth folding means (164) which can be adjusted in height according to the thickness of the said cartons (3) being designed to cause the folding of the said wing (7) glued towards the bottom (6) of the respective folded blank (4r). 8. Machine according to claim 7, characterized by the fact that said second folding means (42) are moved in advance of phase with respect to said third folding means (43) so that the said lateral wings (7) are arranged at the same around and substantially in contact with the envelope (E) contained within said folded spindle (4r). 9. Machine according to claim 7, characterized in that said second folding means (42) are moved in phase delay with respect to said third folding hubs (43) so that said lateral wings (9) are interposed between the others wings (7 or 8) and so that the glued wing (7) is glued to all the remaining wings (8 and 9). 10. Machine according to claim 7, characterized in that said second folding means (43) consist of two strips (136) each supported by a respective said slide (123) and movable between two extreme positions, one of which is at rest , in which it is external to the respective said partition (123), and a fold, in which it crosses the said partition (123) in correspondence with a respective recess (137) and folds the said side wings (7) of the folded blank (4r) towards the bottom of the latter, the said strips (136) being moved by the respective means (137) also supported by the said slides (123) and able to move them between the said positions independently of the position assumed by the same said slides (123) as a function of the transversal dimensions of said folded blank (4r) and of the said cartons (3). 11. Machine according to claim 7, characterized in that said third folding means (43) consist of two arms (153) each supported by a said slide (125), arranged between the said pocket conveyor (40) and the said small walls (123) that limit it and movable in phase synchronism with the ducts third conveyor means (15) between a lowered position, in which they allow the advancement of said pockets (39) with the relative folded blanks (4r), and a raised position, in which they intercept the wing (8) opposite to the one (7) glued and fold it towards the bottom of the respective folded blank (4r). 12. Machine according to claim 11, characterized in that each arm (155) is supported by a respective chain (158) movable in accordance with the said pocket conveyor (40) and in synchronism with it with a previously accelerated motion to reach, intercept and fold said wing (8) opposite to the one (7) glued and subsequently decelerated to allow the folded blank (4r) thus further folded away and free, not before the glued wing (7) is intercepted by said fourth folding means (164 ) and begin its folding towards the bottom (6) of the respective folded blank (4r). 13. Machine according to claim 12, characterized in that said fourth folding means (164) extend and operate up to the said closing station (18) within which a second presser (161) is provided ) acting on the folded frame (4r) almost shaped like a package (3) inside a respective pocket (39) of the said pocket conveyor (40) and able to compress it until the glue material applied to the said ( 7) incoilata ,. 14. Machine according to claim 13, characterized in that said fourth folding means (164) and said second presser (161) can be adjusted in height according to the final thickness of each case. 15. Machines according to claim 1, characterized in that within the said counting and stacking station (19) there are provided lifting means (44) arranged bilaterally to said third conveyor means (15) and able to lift each case (3 ) against the creation of support means (45) movable horizontally, until they come into contact with the base of a stack of cartons (3) and up to the lifting of the entire stack of cartons (3) including the last one. 16. Machine according to claim 15, characterized in that said lifting means (44) consist of two comb elements (46) arranged with their teeth (47) facing upwards and engaged in corresponding seats (48) formed on the counterfaced faces of a pair of almost parallel walls (49), constituting said support means (45), hinged around axes parallel to the direction of advancement (F15) of said third conveyor means (15) and subjected to the action of respective elastic means (50) adapted to reciprocally approach them while keeping them in a supporting position of the said stack of cases (3) and to oppose the lifting of a subsequent case (3) by the said comb elements (46) . 17. Machine according to claim 16, characterized in that said comb elements (46) and said walls (49) are supported by a pair of slides (125) arranged on opposite bands of said third conveyor means (15) and adjustably positionable with respect to the median axis of the latter, coinciding with the corresponding median axis of the said cases (3), as a function of the transversal dimensions of the said cases (3). 18. Machine according to the preceding claims and according to what is described and illustrated with reference to the figures of the accompanying drawings and for the aforementioned purposes.