EP0082796B1 - Apparatus for securing a bottom or a cover to the edge of a shaped shell - Google Patents

Abstract

The invention relates to a device which seals a base or a lid onto a length of section and in particular to apparatus for sealing tubular section used as packaging and obtained by adhesion of several strips of fibrous, cellulosic, metallic, plastic and other materials.

Description

The invention relates to a machine for continuously sealing a bottom or a cover on the edge of a section of profile, in particular of tubular profile used as packaging and obtained by gluing several strips of material. fibrous, cellulosic, metallic, plastic and other, machine having, on the one hand, a frame composed of a base containing the various mechanical, electrical, electronic, pneumatic and other apparatus ensuring the functioning of the machine and of two vertical parallel supports arranged at the two ends of the base between which is placed a cyclically rotating drum of polygonal section, each side of which is provided with means for gripping and holding the sections of tubular sections, successively cooperates with assemblies comprising an assembly for introducing the sections of tubular profiles, a gluing assembly, a supply and bottom placement assembly, an evacuation assembly, said sets tiles being distributed concentrically with respect to the drum.

We know, from French patent FR-A-2477962 a process for forming profiles, in particular tubular profiles obtained by gluing several strips of fibrous, cellulosic, metallic, plastic and other materials, offset laterally one relative to to the other. According to this method, the assembly of the strips, previously coated with glue on at least one of their faces, is initially carried out over a small width and then extended to the entire perimeter of the tubular section being formed by a helical progression of this width d '', helical progression consisting of the combination, on the one hand, of the lateral extension of the assembly width and, on the other hand, of the continuous advance of all the bands for lateral deployment of 'One strip with respect to the other as the tubular profile is continuously formed.

Also known, from French patent FR-A-2480 179, is a machine for the continuous forming of tubular section made up of several strips bonded together, these strips being made of fibrous, cellulosic, metallic, plastic and other materials. This machine comprises, adapted to the forming process indicated above, a gluing station provided with a labeling assembly, followed by a press, ensuring the partial bonding of the different strips over a small width while the ends, located on either side of this partial bonding, remain independent of each other. This machine also includes a forming device cooperating with a drive and pinching mechanism to continue and widen the bonding area, a train of pressure diabolos allowing the finishing of the tubular profile and in particular the end-to-end bonding of the lateral edges of the bands. At its exit, the machine comprises a device for cutting multiple peripheral cuts supplemented by a device for discharging the sections of the tubular section sectioned by the cutting elements of said cutting device.

Furthermore, document FR-A-2 181 425 discloses a machine for sealing a bottom or a cover on the edge of a section of profile corresponding to the preamble of claim 1. Its assembly d gluing does not take effect until the bottom and cover have been inserted into the end of the profile section. This bonding assembly comprises a vertical cylinder actuating a vertical rod sliding in a guide. This vertical rod has at its upper end an annular part picking up glue from a container. The upper edge of this annular part wet with adhesive by immersion engages in the section of section to deposit a thread of adhesive on the disc introduced into the end of the section of section. However, to obtain this deposit of the adhesive stream, it is necessary for the annular part to penetrate into said end of the profile section. Therefore, the outside diameter of the annular part must be slightly smaller than the inside diameter of the end of the profile section. If there is a manufacturing or mounting defect on the gripping device, either the annular part cannot penetrate into the profile section, or the deposit of the adhesive stream is not uniform on the edge of the disc. Finally, the cover or bottom is held by clamping inside the profile section, which risks deforming the flatness of the cover or the bottom.

The present invention aims to remedy these drawbacks. The invention, as characterized in claim 1, solves the problem of creating a continuous sealing machine for a bottom or a cover on the edge of a section of profile, in particular of tubular profile used as packaging and obtained by gluing several strips of fibrous, cellulosic, metallic, plastic and other materials, machine having, on the one hand, a frame composed of a base, enclosing the various mechanical, electrical equipment , electronic, pneumatic and other ensuring the operation of the machine and two vertical parallel supports arranged at the two ends of the base and between which is placed a cyclically rotating drum of polygonal section, each side of which is provided with means for gripping and holding the sections of tubular sections successively cooperate with assemblies comprising a set for introducing the sections of tubular sections, a sizing assembly, a set supply and placement of funds, an evacuation assembly, said removable assemblies being distributed concentrically with respect to the drum and the sizing assembly of which comprises a vertically movable frame composed of two longitudinal members connected together by crosspieces between which are arranged stirrups, the ends of which are made integral with the underside of the longitudinal members by fastening elements sliding in holes made in said longitudinal members and comprising elastic elements engaged in housings made in the top of the longitudinal members to absorb the contact between the plates and the edge of the sections, the stirrups being provided with plates transferring a film of adhesive, from a glue tank on the edge of the sections of tubular section and / or rings and / or discs , the excess glue dripping along the edges of the plates.

The advantages obtained thanks to this invention consist essentially in that the adhesive film is deposited on the edge of the profile sections by glue plates mounted in a flexible manner whose contact with the edge of the profile sections is absorbed while avoiding the deterioration of said edge. Thus, the type of mounting of the gluing plates makes it possible to compensate for a defect in the perpendicularity of the edge of the section with respect to its axis. Furthermore, the flexible mounting of said sizing plates not only allows uniformity of the adhesive film over a single section since the contact between the sizing plates and the section of section is made over the entire edge of the latter, but also a uniformity of the adhesive film on the edges of the row of sections.

Furthermore, the adhesive film is removed before the cover or bottom is put in place, so that the latter is held without any deformation as soon as it comes into contact with the glued edge of the profile section.

• La figure 1 représente, en vue frontale, la machine de scellement d'un fond sur un des chants d'un tronçon de profilé tubulaire conforme à l'invention, le support avant étant enlevé.
• La figure 2 représente, en vue en plan, le tambour.
• La figure 3 représente, en vue en élévation, le tambour.
• Les figures 4 à 16 représentent, selon le premier mode d'exécution, les différents moyens permettant la fixation d'un fond ou d'un couvercle sur un tronçon de profilé de section polygonale et, notamment.:
• La figure 4 représente, en vue en élévation, les moyens de préhension et de maintien des tronçons de profilés tubulaires de section polygonale.
• La figure 5 représente, en vue en plan, ces moyens.
• La figure 6 représente, en vue en élévation, l'ensemble d'introduction des tronçons dans la machine.
• La figure 7 représente, en vue en coupe selon ligne de coupe VII-VII de la figure 6, l'ensemble d'introduction des tronçons dans la machine.
• La figure 8 représente, en vue en élévation, l'ensemble de préformage et de chauffage.
• La figure 9 représente, en vue en coupe selon ligne de coupe IX-IX de la figure 8, ledit ensemble de préformage et de chauffage du chant du profilé devant être pourvu du fond.
• La figure 10 représente, en vue en élévation, l'ensemble d'encollage.
• La figure 11 représente, en vue en coupe selon ligne de coupe XI-XI de la figure 10, l'ensemble d'encollage.
• La. figure 12 représente, en vue en coupe selon ligne de coupe XII-XII de la figure 13, l'ensemble d'amenée et de mise en place du fond.
• La figure 13 représente, en vue frontale, l'ensemble d'amenée et de mise en place du fond.
• La figure 14 représente, en vue en coupe selon ligne de coupe XIV-XIV de la figure 15, l'ensemble d'évacuation des tronçons de profilés tubulaires pourvus du fond.
• La figure 15 représente, en vue frontale, l'ensemble d'évacuation des tronçons de profilés tubulaires pourvus du fond.
• La figure 16 représente, en vue en élévation, le mécanisme de commande des tapis de l'ensemble d'évacuation.
• La figure 17 à 28 représentent, selon le second mode d'exécution, les différents moyens permettant la fixation d'un fond ou d'un couvercle sur un tronçon de profilé de section circulaire et, notamment :
• La figure 17 représente, en vue en élévation. non seulement les moyens moteurs mais également les moyens de préhension et de maintien des tronçons de profilés tubulaires de sections circulaires.
• La figure 18 représente, en vue en élévation, l'ensemble d'introduction et de mise en place des bagues constituant le corps de l'emballage circulaire.
• La figure 19 représente, en vue latérale en coupe, cet ensemble d'introduction et de mise en place des bagues.
• La figure 20 représente, en vue en élévation, l'ensemble d'alimentation et de mise en place des disques servant de fond ou de couvercle aux bagues.
• La figure 21 représente, en vue latérale en coupe selon ligne de coupe XXI-XXI de la figure 20, l'ensemble d'alimentation et de mise en place des disques servant de fond ou de couvercle aux bagues.
• La figure 22 représente, en vue latérale en coupe selon ligne de coupe XXII-XXII de la figure 20, l'ensemble d'alimentation et de mise en place des disques servant de fond ou de couvercle aux bagues.
• La figure 23 représente, en vue en élévation, l'ensemble d'encollage.
• La figure 24 représente, en vue latérale en coupe, cet ensemble d'encollage.
• La figure 25 représente, en vue en élévation, les ensembles de présertissage et de sertissage final.
• La figure 26 représente, en vue latérale en coupe selon ligne de coupe XXVI-XXVI de la figure 25, les ensembles de présertissage et de sertissage final.
• La figure 27 représente, en vue en élévation, l'ensemble d'évacuation.
• La figure 28 représente, en vue latérale, l'ensemble d'évacuation.

The invention is set out below in more detail with the aid of drawings representing only two embodiments.

• Figure 1 shows, in front view, the machine for sealing a bottom on one of the edges of a section of tubular section according to the invention, the front support being removed.
• Figure 2 shows, in plan view, the drum.
• Figure 3 shows, in elevation view, the drum.
• Figures 4 to 16 show, according to the first embodiment, the different means for fixing a bottom or a cover on a section of section of polygonal section and, in particular:
• FIG. 4 shows, in elevation view, the means for gripping and holding the sections of tubular sections of polygonal section.
• Figure 5 shows, in plan view, these means.
• FIG. 6 shows, in elevation view, the assembly for introducing the sections into the machine.
• Figure 7 shows, in sectional view along section line VII-VII of Figure 6, the assembly for introducing the sections into the machine.
• FIG. 8 shows, in elevation view, the preforming and heating assembly.
• Figure 9 shows, in sectional view along section line IX-IX of Figure 8, said preforming and heating assembly of the edge of the profile to be provided with the bottom.
• Figure 10 shows, in elevation view, the sizing assembly.
• Figure 11 shows, in sectional view along section line XI-XI of Figure 10, the sizing assembly.
• Figure 12 shows, in a sectional view along section line XII-XII of Figure 13, the supply and placement assembly of the bottom.
• FIG. 13 represents, in front view, the supply and installation assembly of the bottom.
• Figure 14 shows, in sectional view along section line XIV-XIV of Figure 15, the evacuation assembly of the sections of tubular sections provided with the bottom.
• Figure 15 shows, in front view, the evacuation assembly of the sections of tubular sections provided with the bottom.
• FIG. 16 represents, in elevation view, the mechanism for controlling the belts of the evacuation assembly.
• FIG. 17 to 28 represent, according to the second embodiment, the different means allowing the fixing of a bottom or of a cover on a section of profile of circular section and, in particular:
• Figure 17 shows, in elevation view. not only the drive means but also the means for gripping and holding the sections of tubular sections of circular sections.
• FIG. 18 shows, in elevation view, the assembly for inserting and placing the rings constituting the body of the circular packaging.
• Figure 19 shows, in side sectional view, this set of introduction and positioning of the rings.
• FIG. 20 represents, in elevation view, the supply and positioning assembly of the discs serving as the bottom or cover for the rings.
• Figure 21 shows, in side view in section along section line XXI-XXI of Figure 20, the power supply and positioning of the discs serving as the bottom or cover of the rings.
• Figure 22 shows, in side view in section along section line XXII-XXII of Figure 20, the power supply and positioning of the discs serving as the bottom or cover of the rings.
• Figure 23 shows, in elevation view, the sizing assembly.
• FIG. 24 represents, in side view in section, this sizing assembly.
• FIG. 25 represents, in elevation view, the pre-crimping and final crimping assemblies.
• Figure 26 shows, in side view in section along line XXVI-XXVI of FIG. 25, the pre-crimping and final crimping assemblies.
• FIG. 27 represents, in elevation view, the evacuation assembly.
• Figure 28 shows, in side view, the evacuation assembly.

We refer to figure 1.

The machine 1 for continuously sealing a bottom on one of the edges of a section of tubular profile obtained by gluing several strips of fibrous, cellulosic, metallic, plastic and other materials comprises a frame 2 composed of a base 3, containing the various mechanical, electrical, electronic, pneumatic and other apparatus ensuring the operation of the machine 1, and of two vertical parallel supports 4 disposed at the two ends of the base 3 and fixed to this base 3 by any means.

Between these two supports 4 are arranged a polygonal section drum 5 subjected to a cyclic rotation movement and several assemblies 6, 7, 8, 9, 10, 11, 403, 404, 449, 533, 572, 614 being able to be the if necessary, interchanged. These assemblies are arranged parallel to the drum 5 on a circle concentric with said drum 5.

The latter, subjected to the cyclic movement of rotation, successively presents its different faces in front of each set 6 to 11 or 403, 404, 449, 533, 572, 614 performing a certain predetermined work.

According to a first embodiment, the first set 6 is a set for the introduction into the machine 1 of the different sections of tubular section of polygonal section to be provided with a bottom, this introduction being done by row of sections.

The second assembly 7 is a preforming and heating assembly for the end of the section of tubular section on which the bottom will be disposed. Indeed, it may very well be that during the handling of the different sections from the exit of the forming machine to the machine 1, these are deformed. Therefore, it is necessary to restore this end to its original shape. In addition, this assembly 7 also makes it possible to standardize the opening of this section because the section must be strictly identical for all the same sections. Otherwise, there is a risk either that the bottom passes through this opening, or that it is placed askew and assembly cannot be done.

In addition, it is necessary to heat this end to maintain a certain fluidity with the adhesive until the installation of the bottom.

The third set 8 is a sizing set. In this set, the glue is placed on the edge of the section.

The fourth set 9 allows the supply and the establishment of the bottom.

The fifth assembly 10 may consist of a crimping assembly. If necessary, this fifth assembly is removed and, at this location, the section can be subjected to accelerated drying.

The sixth assembly 11 is an assembly allowing the evacuation of the sections provided with the bottom.

We refer to Figures 2 and 3.

The drum 5 has a polygonal section making it possible to obtain planar surfaces 12, 13. 14, 15, 16, 17. Advantageously, the drum 5 has a hexagonal section and during operation each planar surface 12 to 17 is successively in face of one of the sets 6 to 11 listed above.

The drum 5 is composed of a jacket 18. formed of six panels 19, 20. 21. 22, 23, 24 made integral with one another by any means, of two lateral flanges 25, 26 closing off the ends 27, 28 of the jacket 18 and of a shaft 29, one end 30 of which has a bearing surface 31 for a ball bearing of a bearing secured to the center of the supports 4 and the other end 32 of which comprises, in addition to a same bearing 33 for the ball bearing of the other bearing, an element such as a key 34 for ensuring the rotation drive of the drum 5.

Each flat surface 12 to 17 has at its two ends 35, 36 a longitudinal boss 37, 38. There are between these longitudinal bosses rows of gripping means 39 fixed by any means 40.

These gripping means 39 are shown in Figures 4 and 5. They comprise a base plate 41 which is received between the bosses 37, 38. The underside 42 of this base plate 41 has a groove 43 serving as a conduit for a fluid such as compressed air. This groove 43 is closed by a tight cover 44 disposed in a housing 45 terminating in the groove 43 and held in place by fixing means 46, 47. The groove 43 is connected to a fluid distribution network (not shown) by an opening 48 made in the base plate 41.

Furthermore, the groove 43 is connected, by openings 49, produced at regular intervals, to cylinders, preferably pneumatic 50 made integral with the top 51 of the base plate 41 by fastening elements 52, 53, 54, 55. Each pneumatic cylinder 50 is surrounded by a set of vertical axes 56, 57, 58, 59 made of a flexible material and held integral with the top 51 of the base plate 41 by a central fixing element 60, 61. The number of these vertical axes 56 to 59 is a function of the section of the section of tubular section which it is desired to provide with a bottom. Thus, in the case of a circular section, their number is three whereas, in the case of a square or rectangular section, their number is four.

Facing the pneumatic cylinder 50, the vertical axes 56 to 59 have a flat 62, 63, 64, 65 serving as a bearing surface for horizontal stops 66, 67 provided with a thread 68. 69 for the installation of fasteners embedded in horizontal housings 70, 71 practiced in axes 56 to 59. The surfaces 72, 73 of the stops 66, 67 facing each other have an inclined face 74, 75. These inclined faces 74, 75 form between them a certain angle, the apex of which lies above said stops 66, 67. The two opposite stops 66, 67 are interconnected by an elastic element 76, one of the ends 77 of which is made integral by a fixing element 78 to the stop 66 and of which the other end 79 is made integral by a fastening element 80 to the stop 67.

These inclined faces 74, 75 cooperate with a spacer 81 provided with an adjustment means 82 and disposed at the end 83 of the piston 84 of the pneumatic cylinder 50.

Each axis 56 to 59 has, near its lower end 85, a thinning 86, 87.

The rows of sections of tubular section coming from the insertion assembly 6 are threaded over all of the vertical axes 56 to 59. The pneumatic cylinder 50 is actuated and the piston 84 is pushed upwards. The spacer 81, cooperating with the inclined faces 74, 75 causes the spacing of the stops 66, 67 and, consequently, the upper ends 88, 89 of the vertical axes 56 to 59. This spacing is made possible, from on the one hand, by the flexibility of the material of these axes 56 to 59 and, on the other hand, by the thinning 86, 87. At the same time, the elastic element 76 is stretched.

Due to this spacing, the section of tubular section is maintained and can no longer come off.

To remove the section of tubular profile provided with the bottom, it causes the retraction of the piston 84 and the elastic element 76 causes the approximation, by means of the stops 66, 67, of the upper ends 88, 89 of the vertical axes 56 to 59 .

Referring to Figures 6 and 7 showing the introduction assembly 6. It comprises a support frame 90 whose height and the inclination can be changed by adjusting elements 91, 92 passing through bearings 93, 94 made integral by fixing elements 95, 96, 97, 98 to the support 4. On this support frame 90 is fixed a sheet 99 extending from one support 4 to the other. This sheet 99 serves as a support, on the one hand, to guides 100 between which is placed the section of tubular section 101 and, on the other hand, to a jack 102 preferably pneumatic made integral with the sheet 99 by a support elbow. The piston 103 of the jack 102 drives a pusher 104 having the row of sections of the tubular section 101 on the drum 5. The assembly 6 also includes a guide passage 105 surmounted by a slide 106. The different sections 101 brought in by means any one, arranged perpendicular to the introduction assembly 6, slide on the slide 106 and engage in the guide passage 105. The diagonally opposite corners 107, 108 move along the walls 109, 110 which can be brought together or separated as a function of the dimensions of the sections 101. The wall 109 has a slide 111 against which the edge 112 of the section 101 moves. The slide 111 directs the sections 101 between the different guides 100. Then, the jack 102 is actuated and the pusher 104 moves all of the sections 101 in the direction of the drum 5 and in such a way that each section 101 comes to cover a set of vertical axes 56 to 59 (see FIGS. 4 and 5).

When the gripping means 39 have acted, the drum 5 involves a rotation of one sixth of a turn to present the row of sections 101 in front of the preforming assembly 7.

Reference is made to FIGS. 8 and 9 showing the preforming and heating assembly 7. This assembly 7 comprises on each side a support plate 113 having slots 114, 115, 116, 117 for the passage of fastening elements 118, 119, 120, 121 making the support plate 113 integral with the supports 4. By means of an adjustment element 122 held by a bearing 123, the support plates 113 can be moved forward or backward sliding between stops 124, 125, 126 , 127 integral with the supports 4. The two support plates 113 are connected together by a cross member 128 serving to support a jack 129 preferably pneumatic. The piston 130, passing through an orifice 131 produced in the cross member 128, is connected to a thrust plate 132 provided with bushings 133, 134 sliding on axes 135, 136 held by bearings 137, 138, 139, 140 integral with the support plates 113. On its face 141 directed towards the sections of tubular section 101, the thrust plate 132 comprises heating plates 142 connected to the thrust plate 132 by axes 143, 144 integral with the heating plates 142 but sliding through holes 145, 146 produced in the thrust plate 132. On these axes 143, 144 are threaded elastic elements 147, 148 arranged between the thrust plate 132 and the heating plates 142. Thus, by applying, as a result of the action of the jack 129 , the heating plates 142 against the edge 149 of the section 101 the elastic elements 147, 148 prevent the heating plates 142, under a possibly too sudden push, deteriorating the edge 149 of the sections 101. The contact between these heating plates 142 and the edge 149 of the sections 101 intended to be provided with the bottom may have a duration equal to or less than the rest time of the drum 5.

The rotation of the drum 5 again involves a sixth of a turn and the different sections 101 of the same row are placed in front of the gluing assembly 8.

Reference is made to FIGS. 10 and 11 showing the gluing assembly 8. This assembly 8 comprises on each side a support plate 150 having slots 151, 152, 153, 154 allowing the passage of fastening elements 155, 156, 157, 158 ensuring the connection between the plates 150 and the supports 4 of the frame 2. On this support plate 150 are fixed by any means of the bearings 159, 160, 161, 162 in which axes 163, 164 engage. The support plates 150 can be adjusted in height by the action of adjustment elements 165, 166 held by bearings 167, 168 secured to the supports 4 acting on the bearings 159, 160. On these axes 163, 164 slide bushes 169, 170 secured to a chassis 171 composed of two longitudinal members 172, 173 connected to one another by cross members 174. This chassis 171 is integral with the pistons 175 of two lateral jacks 176 maintained by a bearing 177 ensuring the connection between the jacks 176 and the support plates 150.

There is between the cylinders 176 a glue tank 178 provided with at least one heating resistor 179 and held by feet 180. This glue tank 178 has an upper compartment 181 in which soak plates 182 held by stirrups 183 whose ends 184, 185 are made integral with the underside 186 of the beams 172, 173 by fastening elements 187, 188 sliding in holes 189, 190 made in said beams 172, 173. On these fastening elements 187, 188 are threaded elastic elements 191, 192 engaged in the housings 193, 194 formed in the top 195 of the side members 172, 173. Thus, by applying, as a result of the action of the jacks 176, the plates 182 provided with a layer of glue, the surplus drips along the edges 196, 197, 198, 199 of said plates 182, against the edge 149 of the sections 101, the elastic elements 191, 192 absorb the contact and prevent the edge 149 of the sections 101 from being damaged.

After having coated the edge 149 with the sections 101 with glue, the drum 5 is again involved in a rotation of one sixth of a turn and the various sections 101 are placed opposite the assembly for placing the bottoms 9.

We refer to Figures 12 and 13.

The assembly for setting up the bottoms 9 cooperates with a plurality of storage magazines 200. These magazines 200 consist of vertical rods 201, 202, 203, 204 coating the bottoms and integral with two connection plates 205, 206 held by sleepers 207, 208 having openings 209, 210, 211, 212 for the passage of fastening elements 213, 214, 215, 216 ensuring the connection between all of the storage magazines 200 and the supports 4 of the frame 2. The storage magazines 200 are placed above a table 217 provided with stiffeners 218, 219 and two crosspieces 220, 221 provided with lights 222, 223 for the passage of fasteners 224, 225 ensuring the connection between the table 217 and the supports 4 of the frame 2. This table 217 serves as a support for two jacks 226 arranged near the supports 4, the piston 227 of which is provided with a thrust plate 228 extending from one piston to the other . This push plate 228 has at each end a bush 229 sliding on an axis 230 held by bearings 231, 232 integral with said table 217. There are near the lower opening 233 storage stores 200 guides 234, 235 ensuring lateral guidance of the bottoms. The table 217 and these guides 234, 235 have a curved end 236, 237 cooperating with a guide plate 238 whose cross member 239 is integral with fixing plates 240 provided with a light 241 for the passage of a fixing element 242 ensuring the connection between the guide plate 238 and the supports 4 of the frame 2. By this cooperation, the funds from the storage stores 200 are directed to the assembly for placing the funds 9.

This comprises on each side a support plate 243 having openings 244, 245. 246, 247 for the passage of fastening elements 248, 249, 250, 251 making the support plate 243 integral with the supports 4 of the frame 2 By means of an adjustment element 252 held by a bearing 253, the support plates 243 can be moved forward or backward sliding between stops 254, 255, 256, 257 integral with the supports 4. The two support plates 243 are interconnected by a cross member 258 serving to support a preferably pneumatic cylinder 259. The piston 260, passing through an orifice 261 produced in the crosspiece 258, is connected to a thrust plate 262 provided with bushings 263, 264 sliding on axes 265, 266 held by bearings 267, 268. 269, 270 integral with the plates- supports 243. On its face 271 directed towards the sections of tubular section 101, the thrust plate 262 comprises centering plates 272 connected to the thrust plate 262 by pins 273, 274 integral with the centering plates 272 but sliding through holes 275, 276 made in the thrust plate 262. On these axes 273. 274 are threaded elastic elements 277, 278 disposed between the thrust plate 262 and the centering plates 272.

Thus, by applying, as a result of the action of the jack 259, the centering plates 272 provided with a bottom 279 against the edge 149 provided with glue from the section 101, the elastic elements 277, 278 prevent deterioration either of the bottoms 279. either edges 149 of sections 101. The centering plates 272 have stops 280 against which the bottoms 279 abut and two lateral guides 281.

Referring to Figures 14, 15 and 16 showing the evacuation assembly 11 of the sections of tubular section 101 provided with the bottom 279. Before this assembly 11 can act, it is necessary that the gripping means 39 are returned to their rest position, that is to say that one causes the retraction of the piston 84 and, consequently, to bring the spacer 81 down. The different elastic elements 76 act and bring the upper ends 88 closer together. , 89 of the vertical axes 56 to 59. As a result, the latter no longer bear against the internal wall of the sections of tubular section 101 and it is possible to remove them from these gripping means 39.

This assembly 11 consists of two devices 282, 283, one 282 ensuring the raising of the sections of tubular section 101 provided with the bottom 279 for their separation from the gripping means 39, the other 283 ensuring the actual discharge of the row of sections 101.

The first device 282 comprises two crosspieces 284, 285 whose ends 286, 287 protrude relative to the external face 288, 289 of the supports 4 and have a bush 290, 291 which can slide on four axes 292, 293, 294, 295 arranged at each end of each crosspiece. The upper 296 and lower 297 ends of each axis 292 to 295 pass through a support 298, 299, 300, 301 secured to connecting beams 302, 303 sliding on ball bushings 304, 305, 306, 307 mounted on shafts 308, 309, 310, 311, made integral with a support frame 312 by bearings 313, 314, 315, 316. The connecting beams 302, 303 are actuated by pistons 317, 318 preferably pneumatic cylinders 319, 320 mounted on plates 321, 322 provided with lights 323, 324, 325, 326 ... crossed by fastening elements 327, 328, 329, 330 ... ensuring the connection between these plates 321, 322 and the supports 4 of the frame 2 .

By means of these jacks 319, 320 acting on the beams 302, 303, the crosspieces 284, 285 can be brought closer to the sections 101, these crosspieces 284, 285 being provided with endless belts 331, 332 bearing against the sections 101 For raising the crosspieces 284, 285, reference is made to FIGS. 14 and 16. The crosspieces 284, 285 are hooked by stirrups 333, 334 to the lower ends 335, 336 of rods 337, 338 including the upper end 339, 340 is connected by a hinge pin-341, 342 to levers 343, 344. One of the levers 344 comprises two wings 345, 346 practically perpendicular to each other, one of the wings 345 being connected by l intermediate the hinge pin 342 at the upper end 340 of the rod 338, the other wing 346 being connected by a hinge pin 347 to one of the ends 348 of a connecting rod 349 of which the other end 350 is connected by a hinge pin 351 to the other lever 343.

This lever 343 has three wings 352, 353, 354, two wings 352, 354 being in the extension of one another and the third 353 making an angle with the other two. The wing 353 is connected by the hinge pin 351 to the end 350 of the connecting rod 349, the wing 354 is connected by the hinge pin 341 at the upper end 339 to the rod 337 and the wing 352 is connected by a hinge pin 355 to the piston 356, 357 of cylinders 358, 359 preferably pneumatic connected by an axis 360, 361 to the supports 4 of the frame 2. These cylinders 358, 359 make it possible to raise the cross members 284, 285 from their low position 362 to their high position 363. As a result, the sections 101 are released from the gripping means 39.

The second device 283 is essentially constituted by the two endless belts 331, 332 each winding partially around a driven drum 364 and a driving drum 365. Each driving drum 365 has at its upper part 366 an element of clutch 367 cooperating, when the crosspieces 284, 285 are in the high position 363, with a second clutch element 368 made integral in rotation with a drive shaft 369 maintained by upper 370 and lower bearings 371 housed in the supports 298, 299, 300, 301. There is between an abutment 372 mounted on the drive shaft 369 and the clutch element 368 an elastic element 373. There is provided the lower end 374 of the drive shaft 369 with a driven pinion 375 which, via a chain 376, is connected to a motor pinion 377 mounted on the shaft 378 of a motor 379. The bore of the motor drum 365 is greater than the diameter of the motor shaft 369 and , therefore, the drum motor 365 can slide along the shaft e 369 engine.

The operation of the evacuation assembly 11 is as follows: the endless belts 331, 332 are brought closer to the row of sections 101 so that said belts touch the sections 101 by means of the jacks 319, 320. Then, actuators 358, 359 are actuated so that the endless belts 331, 332 lift upwards the various sections 301 provided with the bottom 279. Simultaneously, the drive shafts 369 are caused to rotate. When the endless belts 331, 332 are in the high position and the different sections 301 are separated from the gripping means 39 of the drum 5, the driving drums 365, by the interaction of the two clutch elements 367, 368, are driven and in turn drive the belts endless 331, 332. These drive the row of sections 101 and said sections 101 are evacuated from the machine 1.

Depending on the material used for producing the sections of tubular section, a certain number of assemblies can be replaced by other assemblies, in particular when the fixing of the bottom is done by crimping, and / or when the dimensions of the sections vary and / or their section.

Reference is made to FIG. 17 representing the drive assembly of the shaft 29 and, consequently, of the drum 5 (see also FIGS. 2 and 3). This drive assembly comprises a brake motor 380. On the shaft 381 of this brake motor 380, fixed on a support 382, is mounted a variator drive pulley 383 connected by a belt 384 to a variator driven pulley 385 secured in rotation of the input shaft 386 of an indexer 387. The output shaft 388 of this indexer 387 drives a coupling 389 one of the sleeves 390 of which is made integral in rotation by the key 34 of the shaft 29 of the drum 5. The ball bearing 391, mounted on the surface 33 of the shaft 29 is housed in a bearing 392 secured to one of the vertical supports 4. Of course, the same is true for the ball bearing mounted on the scope 31.

The above description was made for a machine allowing the sealing of a bottom and / or a cover on the edge of a section of tubular section of polygonal section, this section being obtained by gluing several strips in fibrous, cellulosic, metallic, plastic and other materials. This sealing can be done by cold bonding, by hot bonding, and, in particular by means of a thermo-film. fuse, either by high frequency welding, by ultrasound, by conduction, by rotation, by crimping or any other means.

However, by replacing the various assemblies 6 to 11 described above by other suitable assemblies, it is possible to use the same machine for sealing a bottom and / or a cover on the edge of a section of tubular section having a circular section, for example a cheese box, a cup or other cylindrical or frustoconical container whose body is obtained by gluing several strips of fibrous, cellulosic, metallic, plastic and other materials.

For this mode of use, the gripping means secured to the flat surfaces 12 to 17 of the drum 5 and visible in FIG. 16 are a cylindrical cap 393 secured to the end 394 of pistons 395 of pneumatic or hydraulic cylinders 396 secured to said surfaces planes 12 to 17. In the working phase, this cylindrical cap 393 projects from a base plate 397 made integral with planar surfaces 12 to 17 by axes 398, 399, 400. The number of gripping means, per surface plane 12 to 17, is a function of the number of boxes that we want to make per cycle. Of course, the base plate 397 has a number of openings 401, for the passage of the cylindrical cap 393, equal to the number of pneumatic cylinders 396, the diameter of these openings 401 being practically identical to the diameter of the cylindrical caps 393. On this cylindrical cap 393 is threaded the ring 402 formed by a section of the tubular profile with circular section and serving as a periphery for the final box, the edge 403 of this ring 402 being applied against the base plate 397. It is recommended between this ring 402 and the cylindrical cap 393 a tight fit so that the rings 402 remain in place even if they are directed downward as visible in this figure.

Reference is made to FIGS. 18 and 19 showing the assembly for positioning the rings 402 on the cylindrical caps 393. This assembly consists of a first device 403 making it possible to put the rings 402 in front of the cylindrical caps 393 and a second device 404 making it possible to thread these rings 402 onto the corresponding cylindrical caps 393.

The first device 403 comprises a drawer 405 having a plurality of corridors 406, 407, 408 through which the rings 402 fall from a supply and storage store (not shown). The lower ends 409 of this drawer 405 comprise a holding piece 410 making the drawer 405 integral with two sliding pins 411. The upper ends 412 of this drawer 405 have a fixing piece 413 ensuring a second connection between the drawer 405 and the axes sliding 411. On these axes 411 are threaded ball bearings 414 housed in cages 415, 416 secured to a sole 417 fixed on the internal face 418 of the vertical supports 4. By means of bearings 419, it is possible to adjust the height of the soles 417 allowing, on the one hand, to modify the height of the assembly of the first device 403 and / or, on the other hand, to adjust the horizontality of the drawer 405. The latter is raised and _/ or lowered by a jack 420 whose end 421 of the piston 422. provided with a yoke 423, is connected by a pin 424 to a yoke 425 secured to the top 426 of the drawer 405. The jack 420, which can be pneumatic or hydraulic, is attached to a beam e fixed 427, the ends 428 of which are integral with the cages 415.

By actuating the jack 420, the drawer 405 places the rings 402 in front of the cylindrical caps 393 so that these rings 402 rest on positioning pins 429. 430 forming part of the second device 404.

The latter comprises on each side a support plate 431 having openings 432, 433, 434, 435 for the passage of fastening elements 436, 437, 438, 439 making the support plate 431 integral with the vertical supports 4. Perpendicular to the support plate 431 is arranged a fixed beam 440 serving to support a pneumatic or hydraulic cylinder 441. This fixed beam 440 has a hole 442, for the passage of the piston 443 of the cylinder 441. The end 444 of the piston 443 is provided a pusher 445 extending from a vertical support 4 to the other. On the front face 446 of this pusher 445 are fixed adjustment plates 447, 448 of the positioning pins 429, 430. When the rings 402 rest on the positioning pins 429. 430, the actuator 441 which acts on the pusher is actuated 445. The latter pushes the rings 402 and these slip onto the cylindrical caps 393.

When the rings 402 are threaded on the said cylindrical caps 393, the drum 5 involves a rotation of one sixth of a turn to present the row of rings 402 in front of an assembly 449 for feeding and placing the disks serving either as the bottom , either from cover to ring 402.

We refer to Figures 20 to 22.

The assembly 449 consists of three devices, one being a storage magazine, the other a device for removing disc by disc and the third a device introducing the disc into the ring 402.

The storage magazine 450 comprises compartments 451, 452 in which the disks 453 are housed. Each compartment 451, 452 is delimited laterally by two positioning guides 454, 455 held by vertical supports 456, 457 fixed on a front crosspiece 458 and a rear crossmember 459, the ends 460 of which are made integral with the vertical supports 4 by flanges 461 having elongated holes 462, 463 traversed by fastening elements 464, 465. Owing to the elongated holes 462, 463, it is possible to bring together and / or move the storage magazine 450 away from the drum 5. Each positioning guide 454. 455 has at its end 466 directed towards the drum 5 a stop 467, 468 against which the disks 453 abut. The latter, arranged vertically, rest by their lower edge on an axis 469 maintained by bearings 470, 471 fixed on the crosspieces 458, 459. On this axis 469 slides a ring 472 more particularly a ball bushing. On this ring 472 are fixed, on the one hand, a pusher 473 applied against the stack of disks 453 and, on the other hand, a motor support 474 in which a hole 475 is made allowing the passage of a cable 476. A ends 477 of this cable 476 is connected to an axis 478. The cable 476 is partially wound around two return pulleys 479, 480. The other end 481 of this cable 476 is provided with a counterweight 482 whose weight is such that the cable 476 exerts sufficient traction on the pusher 473 to ensure, on the one hand, the maintenance of the discs 453 applied against each other and, on the other hand, the advance of this stack as and measurement of the removal of each disc. However, this traction is insufficient to overcome the resistance exerted by stops 467, 468.

The device 483 ensuring the removal disc by disc of each stack of discs 453 comprises a series of suction cups 484 facing the advance of the stack of discs 453 disposed in the compartments 451, 452 of the storage magazine 450. These suction cups 484 are arranged on a crosspiece 485 subjected to a movement of advance and / or recoil. To this end, the two lateral ends 486 are integral with the end 487 of an axis 488 sliding through ball bushings 489 housed in a fixed cage 490 integral with a sole 491. This sole 491 has elongated holes 492 , 493 allowing the passage of fastening elements 494, 495 making this sole 491 integral with the vertical supports 4. Adjustment means 496, 497 allow the entire device 483 to be adjusted in height. The other end 498 of the axis 488 is connected via a ball joint 499 to the end of the piston 501 of a hydraulic or pneumatic cylinder 502 secured to the sole 491. This cylinder 502 initially exerts traction on the crosspiece 485. From this fact, the suction cups 484 are applied against the center of the discs 453. Then, the jack 502 exerts in a second time a thrust on this crosspiece 485. The suction force of the suction cups 484 cooperating with the elasticity of the disc 453 allows to overcome resistance ex ercée by stops 467, 468 and the disc is detached from the stack of discs arranged in the compartments 451, 452. These suction cups 484 direct the discs 453 through guides 503 towards the device for introducing the discs 453 into the rings 402 .

This device 504 ensuring the introduction of the discs 453 into the rings 402 comprises a series of centering tools 505 having a groove 506 allowing the positioning of the discs 453. Inside this centering tool 505 slides a pusher 507 fixed on an axis 508 secured to a movable beam 509. Between the rear face of the centering tool 505 and the front face of the movable beam 509 are placed elastic elements 510, 511 whose ends 512, 513 are respectively secured from the rear face of the centering tool 505 and from the front face of the movable beam 509. At the ends of the rear face 514 of the movable beam 509 is fixed an axis 515 sliding through ball bushings 516 housed in cages 517 integral with a sole 518. This sole 518 has elongated holes 519, 520, 521. 522 in which are fixed fastening elements 523, 524, 525, 526 ensuring the fixing of the soles 518 on the vertical supports 4 These two flanges 518 are connected together by a fixed beam 527 having a hole 528 through which slides the piston 529 of a pneumatic or hydraulic cylinder 530 secured to the fixed beam 527. The end 531 of the piston 529 is connected by a yoke 532 to the movable beam 509. By actuating the jack 530, the movable beam 509 is advanced so that the centering tool 505 coming into contact with the edge of the ring 402 is blocked by said edge. The jack 530, continuing to push, compresses the elastic elements 510, 511 and causes the pusher 507 to slide. The latter pushes the disc 453 inside the ring 402. By actuating the jack 530 in the opposite direction, the movable beam 509 returns to its starting position.

After insertion of the disks 453 in the rings 402 and removal of the movable beam 509, the drum 5 is implied a new rotation of one sixth of a turn to present the row of rings 402 provided with the disks 453 in front of a gluing assembly 533 .

Reference is made to FIGS. 23, 24 representing the gluing assembly. The latter comprises a tray 534 divided into two compartments 535, 536 arranged one above the other. The lower compartment 535 contains the heating means such as immersion heaters 537 while the upper compartment 536 contains the glue. This tray 534 is held by feet 538 provided with height adjustment means 539. These feet 538 are secured to the top of the base 3. In the upper drawer 536 dip impression plates 540 of a vertically movable frame 541 and whose role consists, by means of an appropriate gluing tool (not shown), of depositing a layer of glue on the periphery of the disc 453 and / or of the rings 402. These plates 540 are integral with stirrups 542, 543 fixed to longitudinal members 544, 545. Each longitudinal member 544, 545 comprises at each of its ends 546 a cage 547 provided with a ball bushing 548. The cages 547 slide vertically along axes 549 held by bearings 550, 551 integral with 'a support plate 552. This plate 552 has elongated holes 553, 554, 555, 556 crossed by fastening elements 557, 558, 559, 560 ensuring the connection between the sole 552 and the vertical support 4. The elongated holes 553 to 556 allow vertical movement of the sole 552, displacement carried out by means of an adjusting element 561. The sole 552 comprises a second adjustment element 562 making it possible to modify the positioning of adjustment stops 563 which must limit the vertical movement of the mobile device 541.

The vertical movement of the mobile device 541 is ensured by pneumatic or hydraulic cylinders 564 made integral by an axis 565 to the vertical support 4. The end 566 of the piston 567 of these cylinders 564 is made integral by a yoke 568 to a cross member 569 of which the ends 570, 571 are integral with the side members 544, 545.

After having coated with adhesive the periphery of the disks 453 and / or of the rings 402, the drum 5 is implied a new rotation of a sixth of a turn to present the row of rings 402 provided with the disks 453 coated with glue in front of a pre-setting assembly 572.

Reference is made to FIGS. 25 and 26 showing the pre-tightening assembly 572. This comprises a fixed beam 573 whose ends 574 are integral with flanges 575. These flanges 575 have elongated holes 576, 577, 578, 579 for the passage of fastening elements 580, 581, 582, 583 making it possible to make the flanges 575 of the vertical supports 4 integral. The lower face 584 of the fixed beam 573 comprises two cages 585, 586 in which ball bushings 587 are housed, 588. Through the latter, axes 589, 590 slide vertically, the upper end 591, 592 of which is held by a fixing element 593, 594 in a bearing 595, 596.

These bearings 595, 596 are integral with the lower face 597 of a movable beam 598. The top 599 of this movable beam 598 has axes 600, 601 on which are threaded tools suitable for preserting 602, 603. These tools 602 , 603 can be provided with resistors 604, 605 to facilitate bonding. The movable beam 598 is raised and / or lowered using two pneumatic or hydraulic cylinders 606, 607, the ends 608, 609 of the pistons 610, 611 are connected to said movable beam 598 by yokes 612, 613, the body jacks 606, 607 being integral with the lower face 584 of the fixed beam 573.

After pre-crimping, the drum 5 involves a new rotation of a sixth of a turn to present the pre-crimped boxes in front of a final crimping assembly. However, this assembly is practically identical to the pre-crimp assembly described above, except that the tools suitable for pre-crimping are replaced by tools suitable for final crimping.

After final crimping, the drum 5 involves the last rotation of a sixth of a turn to present the finished boxes in front of an evacuation assembly 614.

Reference is made to FIGS. 27 and 28 showing the evacuation assembly. This comprises a fixed support 615, the ends 616 of which are made integral with the upper end 617 of the vertical supports 4 by fastening elements 618. On the top 619 of this fixed support 615 are fixed cages 620 serving as housing for ball bushings 621 through which axes 622 slide vertically. The lower end 623 of the latter is held in a bearing 624 by a fixing element 625. The bearing 624 is integral with the top 626 of an evacuation tunnel 627 having a U-shaped section whose opening 628 is directed downwards. This tunnel 627, covering the series of finished boxes, is extended at one end 629 by an outlet slide 630 while the other end is provided with a compressed air injector (not shown). This tunnel 627 is subjected to vertical displacement. For this purpose. the top 626 of the tunnel 627 is provided with yokes 631 connected by an axis 632 to yokes 633 integral with the end 634 of pistons 635 of pneumatic or hydraulic cylinders 636. The body of these jacks 636 is integral with the top 619 of this support fixed 615.

During the rotation of the drum 5, the tunnel 627 is in the high position. When stopped, the tunnel 627 is lowered so that the edges 637. 638 of the vertical wings 639, 640 rest on the base plate 397 of the gripping means described above. Then, one acts on the jacks 396 so that the cylindrical caps 393 retract inside the base plate 397. Therefore, the boxes rest on the top of the base plate 397. Then, one actuates the compressed air injector and the cans are pushed by the air stream towards the outlet slide 630. After evacuation, the tunnel 627 is raised and the drum 5 can again turn.

Claims (27)

1. Machine for continous sealing of a bottom or lid to the edge (149) of a section length, more especially a tubular section (101) used for packaging and obtained by gluing several strips of fibrous, cellulosic, metallic, plastic and other materials, a machine having, on the one hand, a frame (2) consisting of a base, incorporating the different mechanical, electrical, electronic, pneumatic and other apparatus causing the machine to function, and of two vertical parallel supports (4) arranged at the two ends of the base (3) and between which is placed a polygonal section cyclically rotating drum (5) of which each side, provided with means of gripping and holding (39) the lengths of tubular section, works together successively with assemblies including an assembly for introducing lengths of tubular section (6, 403, 404), a gluing assembly (8. 533). an assembly for feeding in and positioning bases (9, 449), a discharge assembly (11. 614), the said assemblies being distributed concentrically in relation to the drum (5), characterized by the fact that the said assemblies (6, 403, 404 ; 8. 533 : 9. 449 ; 11, 614) are removable and that the gluing assembly (8) has a vertically movable frame (171. 541) consisting of two longitudinal members (172. 173, 544, 545) interconnected by cross-pieces (174, 569) between which stirrups (183. 542, 543) are arranged o which the ends (184, 185) are integrally linked to the lower face of the longitudinal members (172, 173, 544, 545) by fixing elements (187, 188) sliding into holes made in the said longitudinal members (172, 173, 544, 545) and having elastic elements (191, 192) engaged in housings (193, 194) made on the top (195) of the longitudinal members (172, 173) to cushion contact between the plates (182) and the edge (149) of the section lengths (101), the stirrups being provided with plates (182, 540) transferring a film of adhesive, from a container (178, 534) of adhesive to the edge (149) of the lengths of tubular section (101) and/or collars (402) and/or disks (453), surplus adhesive trickling along the edges (196 to 199) of the plates (182, 540).

2. Machine in accordance with claim 1, characterized by the fact that the rotating drum (5) includes a hexagonal section and consists of a shaft (29), two lateral flanges (25, 26) and six panels (19. 20, 21, 22, 23, 24) the flat surfaces of which (12 to 17) have rows of gripping devices which penetrate the lengths of tubular section (101), (402) and from which at the conclusion of the operation the lengths of tubular section (101). (402) are released, fitted with a base or a lid (279). (453).

3. Machine in accordance with claims 1 and 2, characterized by the fact that the gripping devices (39) have a delivery pipe for a fluid such as compressed air, a number of jacks preferably pneumatic (50) and assemblies of vertical axes (56 to 59), the number of which is a function of the polygonal section of the lengths of tubular section, such vertical axes made of supple materials and held by a central fixing element (60, 61) having on the one hand, at their lower end (85), a tapering (86) and, on the other hand, a flat part (62 to 65) leading towards the pneumatic jacks (50) and provided with horizontal abutments (66. 67) of which the facing surfaces (72. 73) have an inclined face (74, 75) working with a spacer (81) integrally connected with the end (83) of the pistons (84) of the pneumatic jacks (50), the opposing abutments (66, 67) facing one another being interconnected by an elastic element (76) providing elastic recall to a position of release of the vertical axes (56 to 59) when the spacer (81) is withdrawn.

4. Machine in accordance with claim 1, characterized by the fact that the assembly (6) for introducing the different lengths of tubular section (101) into the machine (1) in the form of rows of such lengths and extending from one vertical support to the other (4) of the base (3) of the machine (1), comprises, on the one hand, for positioning the lengths (101) on the drum (5), a supporting frame (90) fixed on a metal plate (99) provided with guides (100) between which the lengths of tubular section (101) position themselves under the guidance of a guideway (105) consisting of walls (109, 110) which can be brought nearer together and/or moved further apart according to the dimensions of the lengths (101) and of a slide (111) directing the lengths (101) between the guides (100), and, on the other hand, a jack, preferably pneumatic (102) integrally connected with the metal plate (99), of which the piston (103) is provided with a driver (109) arranging the row of lengths of tubular section (101) on the drum (5) in such a way that the lengths (101) pass on to the assemblies of vertical axes (56 to 59).

5. Machine in accordance with claim 1, characterized by the fact that it also includes an assembly for preforming and heating (7) the end of the lengths (101) on which the base (279) will be set, each side of such base being provided with an adjustable support plate (113) integrally connected with the supports (4) of the frame (2), such adjustable support plates (113) are interconnected by a cross-piece (128) acting as support for a jack (129), preferably pneumatic, of which the piston (130), passing through an orifice (131) made in the cross-piece (128) is provided with a pusher plate (132) having sleeves (133, 134) sliding on axes (135, 136) held by bearings (137 to 140) integrally connected with the support plates (113) and having, on its surface (141) facing the lengths of tubular section (101), heating plates (142).

6. Machine in accordance with claim 5, characterized by the fact that the heating plates (142) are connected to the pusher plate (132) by axes (143, 144) integrally connected with the heating plates (142) but sliding through holes (145, 146) made in the pusher plate (132), such axes (143, 144) including elastic elements (147, 148) arranged between the pusher plate (132) and the heating plates (142) to cushion contact between the heating plates (142) and the edge (149) of the lengths (101).

7. Machine in accordance with claim 1, characterized by the fact that the vertically mobile frame (171, 541), operated by two lateral jacks (176, 564), includes sleeves (169, 170, 547, 548) sliding along the axes (163, 164, 549) supported by bearings (159 to 162, 550, 551), integrally connected with support plates (150, 552), themselves integrally connected with the supports (4) of the frame (2).

8. Machine in accordance with claim 1, characterized by the fact that the adhesive container (178, 534), provided with at least one resistance heater (179, 537) and supported by feet (180. 538), includes an upper compartment (181, 535) in the plates (182, 540) supported by the stirrups (183. 542, 543).

9. Machine in accordance with claim 8, characterized by the fact that the container (150), (552) includes sleeves (169, 170), (547, 548) at its ends, sliding on axes (163, 164), (549) supported by bearings (167, 168), (550, 551) integrally connected with support plates (150), (552) provided with adjusting elements (165, 166), (561, 562).

10. Machine in accordance with claim 1, characterized by the fact that the assembly (9) for positioning the bases (279) includes a number of storage magazines (200) consisting of vertical rods (201 to 204) enclosing the bases (279) and the bottom opening of which (233) is on to a table (217) provided with guides (234. 235) and having one end curving back interacting with a guide plate (238) to direct the bases (279) towards the assembly for positioning the bases, such table (217) acting as a support for two jacks (226), preferably pneumatic, of which the piston (227) is provided with a pusher plate (228) directing the bases (279) coming from the storage magazine (200) towards the assembly for positioning the bases, having at each end a sleeve (229) sliding on an axis (230) supported by bearings (231, 323) integrally connected with the table (217).

11. Machine in accordance with claim 10, characterized by the fact that the assembly (9) includes, on each side, a support plate (243) integrally connected with the supports (4) of the frame (2), a jack, preferably pneumatic (259) of which the piston (260) passing through an orifice (261) made in a cross-piece (258) connecting the support-plates (243), is linked to a pusher disc (262), provided on the one hand, with sleeves (263, 264) sliding on axes (265, 266) supported by bearings (267 to 270) integrally connected with support plates (243) and, on the other hand, on its surface facing the lengths (101), with centring plates (272) linked to the pusher disc (262) by axes (273, 274) integrally connected with centring plates (272) but sliding through holes (275, 276) made in the pusher disc (262).

12. Machine in accordance with claim 11, characterized by the fact that the axes (273, 274) include elastic elements (277, 278) arranged between the pusher disc (262) and the centring plates (272) to cushion contact between the bases (279) and the edge (149) of the lengths (101), such centring plates (272) having abutments (280) and two lateral guides (281) between which the bases (279) coming from the storage magazines (200) position themselves.

13. Machine in accordance with claim 1, characterized by the fact that the assembly (11) for discharging section lengths (101) fitted with bases (279), includes two devices (282) and (283) working together, the device (282) picking up lengths of tubular section (101) fitted with a base (279) in order to separate them from the gripping facilities (39), the device (283) effecting actual discharge of the series of section lengths (101) fitted with bases (279).

14. Machine in accordance with claim 13, characterized by the fact that the device (282) includes two cross-pieces (284, 285) working with such means of transfer, bringing the two cross-pieces (284, 285) nearer to, or distancing them from, the lengths (101) to be discharged, such means of transfer being jacks, preferably pneumatic (319, 320) integrally connected with the supports (4) of the frame (2), of which the pistons (317, 318) act upon connecting beams (302. 303) sliding over ball bearings (304, 307) mounted on shafts (308, 311) integrally connected with a supporting frame (312).

15. Machine in accordance with claim 14, characterized by the fact that the connecting beams (302, 303) include supports (298 to 301) traversed by axes (292 to 295) effecting connection between the beams (302, 303) and the cross-pieces (284, 285), such cross-pieces (284, 285) having, on the one hand, an endless belt (331, 332) acting with the series of section lengths (101) fitted with a base (279) due to be discharged, such endless belts passing partly round a driven drum (364) and partly round a driving drum (365) and, on the other hand, at each of their ends (286, 287), a sleeve (290, 291) sliding on the axes (292 to 295) and acting together with the lifting facilities to release the section lengths (101) fitted with a base (279) from the gripping devices (39).

16. Machine in accordance with claim 15, characterized by the fact that the lifting facilities are two jacks (358, 359) preferably pneumatic, integrally connected with the supports (4) of the frame (2) of which the pistons (356, 357) act through the intermediary of levers (343, 344) and of rods (337, 338, 341) on the cross-pieces (284, 285), the lever (343) having three arms (352, 353, 354), two as an extension one of the other (352, 354) and the third (353) forming a certain angle with the other two, the arm (354) being linked to the piston (356, 357) of the jacks (358, 359), the arm (354) being linked through the intermediary of the rod (337) to the cross-piece (284) and the arm (353) being linked by the connecting rod (349) to the other lever (344) to effect simultaneous operation of the two levers (343) and (344) by the same jack (358, 359) and including two arms (345, 346) practically perpendicular one to the other of which one (345) is linked by the connecting rod (349) to the lever (343) and of which the other (346) is linked by the rod (338) to the second cross-piece (285).

17. Machine in accordance with claim 13, characterized by the fact that the device (283) includes the means to ensure rotation of the endless belts (331, 332) when the cross-pieces (284, 285) are in the high position (363), such means being, on the one hand, drive shafts (369) supported by bearings (370, 371) set in the supports (298 to 301) along which slides the drive drum (365) having an internal diameter greater than the diameter of the drive shafts (369), the lower end (374) of such drive shafts (369) being linked through the intermediary of a transmission consisting of a driven pinion (275) mounted on the lower end (374), of a chain (376) and a drive pinion (377) to a motor (379) and, on the other hand, a coupling consisting of a first element (367) integrally connected in rotation with the drive drum (365) and of a second element (368) integrally connected in rotation with the drive shafts (369), cooperation between the two elements (367, 368) occurring only when the cross-pieces (284, 285) are in the high position (363).

18. Machine in accordance with claims 1 and 2, characterized by the fact that the means of gripping are cylindrical caps (393) integrally connected to the end (394) of pistons (395) of jacks (396) fixed on the plane surfaces (12 to 17) of the drum (5), such cylindrical caps (393). in the operating phase, projecting from a base plate (397) integrally connected with the said plane surfaces (12 to 17), having a diameter practically identical to that of the collars (402) formed by lengths of tubular section of circular cross-section in order to keep the collars (402), by close adjustment, on the cylindrical caps (393) when the drum (5) is rotating.

19. Machine in accordance with claim 1, characterized by the fact that the assembly for positioning the collars (402) on the cylindrical caps (393) is made up of a first device (403) for putting the collars (402) opposite the cylindrical caps (393) and of a second device (404) to slip such collars (402) on to the said cylindrical caps (393).

20. Machine in accordance with claim 19, characterized by the fact that the first device (403) includes, on the one hand, a drawer (405) having a number of passages (406, 407, 408) along which fall the collars (402) coming from a supply and storage magazine, whose upper (409) and lower (412) ends interact with two axes (411) sliding through ball bearings (414) set in cages (415,416) integrally connected with a base (417) fixed to the inside face (418) of the vertical supports (4) and, on the other hand, a jack (420) of which the piston (422) end (421 provided with a fork joint (423), is linked by an axis (424) to a fork joint (425) integrally connected to the top (426) of the drawer (405) to bring the collars (402) opposite the cylindrical caps (493).

21. Machine in accordance with claim 19, characterized by the fact that the second device (404) includes a support plate (431), applied against the inside faces of the vertical supports (4), on which is arranged a fixed beam (440) acting as a support for a jack (441), the piston (443) of which slides through a hole (442) made in the said fixed beam (440), the end (444) of the piston (443) having a pusher (445), the front face (446) of which has adjustment plates (447, 448) provided with rods (429, 430) for positioning collars (402) facing the cylindrical caps (393).

22. Machine in accordance with claim 1, characterized by the fact that the assembly (449) for supplying and positioning discs to form either the bottom or the lid of the collars (402), is made up of a disc storage magazine (450), a device (483) for picking up a disc at a time and a device (504) inserting the disc into the collar (402).

23. Machine in accordance with claim 22, characterized by the fact that the disc storage magazine (450) includes compartments (451, 452) bounded laterally by two positioning guides (454, 455) resting on vertical supports (456, 457) fixed to cross-pieces (458, 459) integrally connected through the intermediary of base plates (461) with the vertical supports (4), guides (454, 455) having, at the end (466) facing the drum (5), an arrester (467, 468), against which the discs (453) abut, each compartment (451, 452) including an axis (469) on which rests the lower edge of the discs (453) arranged vertically on this axis (469) supported by bearings (470, 471) fixed on the cross-pieces (458, 459), providing a slide for a sleeve (472) to which are affixed, on the one hand, a pusher (473) applied to the pile of discs (453) and, on the other hand, a motor support (474) having a hole (475) allowing a cable (476) to pass and passing in part round lazy pulleys (479, 480), and of which one of the ends (477) is linked to an axis (478) acting with the motor-support (474) and of which the other end (481) is provided with a counter-weight (482) exerting sufficient pull on the pusher (473) on the one hand, to keep the discs (453) against one another and on the other hand, to move this pile forward progressively as each disc is taken out but insufficiently to overcome the resistance exerted by the arrests (467, 468).

24. Machine in accordance with claim 22, characterized by the fact that the device (483) for picking up discs (453) includes a series of suction cups (484) having a suction power which, interacting with the elasticity of the material from which the discs are made, makes it possible to overcome the resistance offered by the arrests (467, 468), such suction cups (484) facing the front of the pile of discs (453) placed in the compartments (451, 452) of the storage magazine (450) and arranged on a cross-piece (485) subject to forward and/or backward movement through the intermediary of means of control which are, for each lateral direction, a jack (502) integrally connected to a base (491) and of which the end (500) of the piston (501) is linked by a toggle (499) to the end of axes (488) integrally connected with the ends (486) of the cross-piece (485) and sliding through ball bearings (489) set in a fixed cage (490) forming an integral part of the base (491).

25. Machine in accordance with claim 22, characterized by the fact that the device (504) feeding the discs (453) into the collars (402) includes a series of centring tools (505) having a groove (506) into which the disc (453) is placed after having passed through a guide (503) placed between the device (482) and the device (504), such centring tools (505) abutting against the edge of the collar (402), each centring tool (505) including a pusher (507) fixed on an axis (508) integrally connected with a mobile beam (509) activated by motor power, elastic elements (510, 511) being integrally connected with the rear face of the centring tool (505) and the front face of the mobile beam (509) to permit forward movement of the pusher (507) after the arrest of the centring tool (505) by the edge of the collar (402), the said motor power being a jack (530) integrally connected with a fixed beam (527) held against the inside face of the vertical supports (4) by foot-pieces (518) and having a hole (528) through which slides the piston (529) of which the end (531) is linked by a fork joint (532) to the mobile beam (509) of which the two ends are provided with an axis (515) sliding through ball bearings (516) set in cages (513) integrally connected with foot-pieces (518).

26. Machine in accordance with claim 1, characterized by the fact that it also includes a pre-setting assembly (572) and a final setting assembly each having a tool (602, 603) suited to its operator and provided with a resistance (604, 605), such tool (602, 603) being mounted on axes (600, 601) integrally connected with the top (559) of a mobile beam (598) of which the underface (584) has, on the one hand, fork joints (612, 613) linked at the end (608, 609) of means of control and, on the other hand, axes (589, 590) supported by a fixing unit (593, 594) in a bearing (595, 596) integrally connected with such underface (584), the means of controlling movement of the mobile beam (598) being jacks (606, 607) of which the piston (610, 611) is linked to the mobile beam (598) and of which the body is integrally linked with the under face (584) of a fixed beam (573), the ends of which (574) are integrally connected with foot-pieces (575) placed against the inside faces of the vertical supports (4), such underface (584) being provided with cages (585, 586) in which are set ball-bearings (587, 588) through which slide the axes (589, 590) of the mobile beam (598).

27. Machine in accordance with claim 1, characterized by the fact that the discharge assembly (614) is made up of a tunnel (627) having a U-shaped cross-section of which the entrance (628) is directed downwards, and extended to one end (629) by an exit slide (630) whereas the other end is provided with a compressed air injector activating the separate boxes of the means of gripping (393) and resting upon the top of the base plate (397), and provided with a fixed support (615) of which the ends (616) are made integral with the upper end (617) of the vertical supports (4), the top (619) of such fixed support (615) being provided, on the one hand, with cages (520) providing a setting for ball bearings (621) through which slide vertically axes (622) of which the lower end (623) is integrally connected with the tunnel (627) and, on the other hand, with jacks (636) of which the ends (634) of the pistons (635) are likewise integrally connected with the tunnel (627).

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