WO2021084150A1 - Machine de formage de contenants et procédé de fixation d'un contenant - Google Patents

Machine de formage de contenants et procédé de fixation d'un contenant Download PDF

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Publication number
WO2021084150A1
WO2021084150A1 PCT/ES2020/070657 ES2020070657W WO2021084150A1 WO 2021084150 A1 WO2021084150 A1 WO 2021084150A1 ES 2020070657 W ES2020070657 W ES 2020070657W WO 2021084150 A1 WO2021084150 A1 WO 2021084150A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
side wall
fixing body
lever
chamber
Prior art date
Application number
PCT/ES2020/070657
Other languages
English (en)
Spanish (es)
Inventor
Unai GOMEZ ZUBICARAY
Original Assignee
Tech Pro Packag, S.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tech Pro Packag, S.L. filed Critical Tech Pro Packag, S.L.
Publication of WO2021084150A1 publication Critical patent/WO2021084150A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2692—Manipulating, e.g. feeding and positioning devices; Control systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
    • B21D51/2615—Edge treatment of cans or tins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/24—Chucks characterised by features relating primarily to remote control of the gripping means
    • B23B31/30—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck
    • B23B31/305—Chucks characterised by features relating primarily to remote control of the gripping means using fluid-pressure means in the chuck the gripping means is a deformable sleeve

Definitions

  • the present invention relates to container forming machines, in particular hollow body metal containers, and to methods of fixing said containers.
  • Machines that are part of a general automated process for forming metal containers, such as aluminum containers for beverages or hygiene products, such as cans and aerosols, are known.
  • shaping machines are used (called coning machines) that deform the lateral surface of the container and shape its neck.
  • This type of machine comprises a clamping table with container clamping stations and a tool table with tool stations.
  • the clamping table faces the tool table and the tool stations are displaceable with respect to the clamping stations in order to shape the containers through a series of operations.
  • Each clamping station has a clamping device that fixes the container at its lower end, leaving the rest of the container free to allow deformation of the lateral surface and the shaping of the neck of the container.
  • Container holding is a critical factor in the forming process.
  • the containers have a hollow body with a thin side wall of reduced thickness, so the fixation must guarantee adequate support without applying excessive pressure that could damage the side wall of the containers.
  • the process generates containers at a high speed, of approximately between three and four containers per second, so that the clamping must guarantee that the containers do not detach, since this would cause the line to stop with the consequent loss productivity.
  • the fixing devices of the forming machines comprise a annular fixing body defining a housing to receive the lower end of the container.
  • the fixing body is generally made of two superimposed annular pieces.
  • An annular piece of solid material and an annular piece of deformable material See for example W02006069609A1, JP2005334942A, JP1997019731A, IT1216844B, EP1830974A1, EP2364793A1 or EP0275369A2.
  • the annular piece of deformable material is essentially a rubber annular gasket that is deformed by a mechanical, pneumatic, or hydraulic actuator to apply contact pressure to the side wall of the container.
  • the gasket must be replaced periodically due to the numerous and repetitive compression cycles and the rubbing of the gasket with the side wall during the extraction and insertion of the containers. Furthermore, rubbing can stain the side wall of the container causing rejection of the container for quality reasons.
  • a hydraulic fluid is used to compress the seal, generally oil, leaks can occur that stain the lower end of the container, which is precisely where the fixation occurs, thus reducing the grip.
  • the annular piece of solid material is used as a mold that prevents radial expansion of the container material outwards.
  • one of the problems that appear during the shaping of thin-walled containers is the phenomenon of the "elephant's foot", which is a bulging of the perimeter contour of the side wall of the container at its junction with the bottom of the container.
  • the annular piece of solid material must necessarily be arranged in a lower position to make contact with the lower end of the container, and therefore the annular piece of deformable material must be arranged in an immediately higher position above the annular piece of solid material.
  • EP0275369A2 shows a container forming machine having a hollow body with a side wall, a bottom, and an open end opposite the bottom.
  • the forming machine comprises a clamping table with clamping stations that have container fixing devices and a tool table with tool stations for shaping the containers, the clamping table facing the tool table, and being the clamping stations and the tool stations move relative to each other.
  • Each fixing device comprises a fixing body with an outer side wall and an inner side wall that defines a housing to receive the container, a sole to support the bottom of the container, and an actuating element that is configured to generate a force on the container.
  • fixing body contacting the inner side wall of the fixing body fixation with the side wall of the container.
  • the fixing body is an annular rubber gasket made of deformable material and the actuating element is a valve that compresses the fluid in a chamber by moving a piston that is attached to the rubber gasket, so that the gasket is compressed to fix the container.
  • the gasket is an annular piece of deformable material that does not contact the side wall of the container at its junction with the bottom of the container, but rather contacts above said junction area, and it is the sole that is located in that area, but without establishing a fixation.
  • the sole has a part that defines an annular piece of solid material that is used to prevent radial expansion of the material of the container towards the outside in the area where the side wall joins the bottom of the container.
  • Document EP2190605A1 shows a device for gripping a metal container that partially solves the aforementioned problem.
  • the device has a fixing body with an inner side wall that defines a housing to receive a container, a sole to support the bottom of the container, and an actuator that is configured to generate a force on the fixing body by contacting the inner side wall. of the fixing body with the side wall of the container fixing it.
  • the fixation body is an axially displaceable ring inside an annular portion that has an internal surface that has diameters that progressively increase in the direction of the bottom of the metal container, so that it defines a conical shape for axial displacement of the ring and fixation. of the metal container.
  • the device of document EP2190605A1 employs a single solid annular piece that avoids the appearance of the "elephant foot” and does not employ an annular rubber gasket in contact with the container to establish the clamping.
  • it presents a series of problems.
  • On the one hand during axial displacement, excessive wear of the ring occurs due to friction with the annular portion. Wear can be reduced by using lubricants, however, it increases the risk of staining the lower end of the container precisely in the area where the clamping is established.
  • the ring has to be manufactured on the basis of to the specific geometric characteristics of the metal container to be worked.
  • the object of the invention is to provide a container forming machine and a container fixing method, as defined in the claims.
  • One aspect of the invention refers to a container forming machine comprising a clamping table with at least one clamping station having a device for fixing a container having a hollow body with a side wall, a bottom and an end open opposite the bottom, and a tool table with at least one tool station for shaping the container, the clamping table being facing the tool table, and the clamping station and the respective tool station being movable one with the other. with respect to the other.
  • the fixing device comprises a fixing body with an outer side wall and an inner side wall that defines a housing to receive the container, a sole to support the bottom of the container, and an actuating element that is configured to generate a force on the container. fixing body contacting the inner side wall of the fixing body with the side wall of the container.
  • the fixing body is a body of solid material and has inside a chamber with a compressible fluid that is arranged in an intermediate position between the outer side wall and the inner side wall of the fixing body, said intermediate position being closer to the inner side wall than the outer side wall, and in that the actuator element is configured to generate the force on the outer side wall of the fixing body by compressing the fluid in the chamber and deforming the inner side wall to fix the container.
  • the actuating element that generates the force allows the fluid to be compressed and decompressed quickly, precisely and easily, thus achieving a quick fixation and release of the containers, which is especially relevant in high-pressure machines. speed as the container forming machines for which the clamping device is intended.
  • the clamping stations and tool stations of the forming machines must be aligned during the forming of the packages.
  • small misalignments can occur between the stations.
  • Another aspect of the invention relates to a method of fixing containers.
  • the method comprises the steps of arranging the container facing the fixing device, introducing the container into the housing of the fixing body, and applying a force on the outer side wall of the fixing body by means of the actuating element, compressing the fluid in the chamber and deforming the inner side wall of the fixing body to fix the container.
  • Figure 1 shows a schematic view of a container forming machine with fixing stations in each of which a fixing device according to the invention is arranged.
  • Figure 2 shows an example of embodiment of the container fixing device of the container forming machine of the invention by fixing a container in a container forming machine.
  • Figures 3, 4 and 5 show the method of fixing a container using the container forming machine of the invention.
  • Figure 6 shows another embodiment of the fixing device of the container forming machine of the invention.
  • Figure 7 shows another embodiment of the fixing device of the container forming machine of the invention by fixing a container.
  • Figure 8 shows an enlarged detail of the fixing device of Figure 7.
  • Figures 9 and 10 show two perspective views of the clamping device of Figure 7 arranged in a clamping station of the forming machine.
  • Figure 11 shows an exploded perspective view of the fixing device of Figure 7 in mounting position on a clamping station of the forming machine.
  • Figure 12 shows an exploded perspective view of the fixing device of Figure 7.
  • Figures 13 and 14 show two sectional views of the actuator element of the clamping device of Figure 7 compressing the fluid in the clamping body chamber.
  • Figure 15 shows a sectional view of the clamping device arranged in the clamping station shown in Figures 8 and 9.
  • a metal container and its transformation in particular an aluminum container
  • a drink or a hygiene product such as cans or aerosols
  • it requires a process in which different machines are integrated. These machines are linked automatically, the transformation process being high speed. For example, with production rates of between 3 or 4 packages per second.
  • An example of a transformation process of a container whose side wall is deformed and decorated with a design comprises the following machines:
  • - Cutter it is a machine where the hollow cylinder is cut to a certain length.
  • Coater prepares the exterior of the container, coating it prior to printing the design.
  • Printer prints the design and an identification code on the container by means of an off-set system or digitally.
  • Enameler externally covers the container to protect the impression.
  • the container 10 After the deformation of the aluminum foil in the extrusion press, the container 10 acquires the shape that is going to be processed in the forming machine, where mainly the container 10 is subjected to a shaping of its side wall, as well as the the neck of the container 10.
  • the container 10 to be formed has a hollow cylindrical body 11 with a side wall 12, a bottom 13 and an open end 14 opposite the bottom 13.
  • the lower end of the side wall 12 of the container 10 has a lower rib 15 that joins the side wall 12 and the bottom 13 of the container 10.
  • the forming machine 200 for containers 10 comprises a clamping table 210 with clamping stations 220 for the containers 10 and a tool table 230 with tool stations 240 for shaping the packages 10.
  • the clamping table 210 is arranged facing the tool table 230 and the clamping stations 220 and tool 240 are movable with respect to each other to form the packages 10. See Figure 1.
  • the clamping table 210 is rotatable and vertically oriented.
  • the clamping table 210 receives packages 10 from an upstream machine in the transformation process via a feed line (not shown in the figures).
  • the clamping table 210 has a rotational movement about a horizontal axis, indexed in defined positions.
  • Said clamping table 210 comprises the plurality of clamping stations 220 arranged on its periphery, the number of clamping stations 220 being usually between sixteen and fifty, the number being frequently forty.
  • the containers 10 advance in the transformation process, they arrive at the clamping table 210 through the feeding line in a sequential manner, the containers 10 being fed to said clamping table 210, and each container 10 being arranged in one of the clamping stations 220.
  • the tool table 230 is also vertically oriented in an arrangement facing the clamping table 210.
  • the tool table 230 has a translational movement A towards the clamping table 210 from a rearward position to a forward position, and a forward movement. translation B from the forward position to the backward position. After each indexed rotational movement of the clamping table 210, the tool table 230 advances with translation movement A and backwards with translation movement B, before the next rotational movement of clamping table 210.
  • the clamping table Tools 230 comprise a plurality of tool stations 240 arranged on its periphery, the number of tool stations 240 being equivalent to the number of clamping stations 220, being able to vary, for example, by a number of three units less.
  • Each tool station 240 is in a position facing one of the clamping stations 220 during the shaping of the container 10, said shaping taking place during the translational movement A of the tool table 230. In each tool station 240 there is a shaping operation of the container 10.
  • the tool stations 240 are configured as a function of the shapes of the side wall 12 and of the neck of the container 10 to be obtained.
  • clamping tables 210 and tools 230 could be static in their axial displacement, presenting only the rotational movement, and the clamping stations 220 and tools 240 could be axially displaceable according to the translational movements A and B.
  • Each container 10 is clamped in each clamping station 220 being fixed at its lower end by a clamping device 100 according to the invention. See Figure 2 or Figure 7.
  • the clamping device 100 comprises a clamping body 110 with an outer side wall 120 and an inner side wall 130 that defines a housing 140 for receiving a container 10, and an actuator element 160 that is configured to generate a force F on the wall. outer side 120 of the fixing body 110.
  • the fixing body 110 has inside a chamber 170 which is filled with a compressible fluid, so that when the actuator element 160 applies the force F on the outer side wall 120 of the fixing body. clamping 110, the fluid in chamber 170 is compressed, which causes a deformation of the inner side wall 130 of the clamping body 110 which reduces the size of the housing 140, making the inner side wall 130 of the clamping body 110 contact with the wall. side 12 of the container 10, and therefore fixing the container 10.
  • the fixing body 110 is a body of solid material (eg, metal or plastic), preferably being a metallic alloy.
  • the chamber 170 with the fluid is arranged embedded inside the fixing body, for example, the chamber 170 could be a gap generated inside the fixing body 110 by EDM and filled with the compressible fluid, so that any force applied on the fixation body 110 is transmitted to the fluid compressing it within the chamber 170.
  • the application of the force F on the outer side wall 120 of the fixing body 110 causes the material of the fixing body 110 to deform, compressing the fluid in the chamber 170, and said compression of the fluid is transmitted to the inner side wall. 130 of the fixing body by reducing the housing 140 and fixing the container 10. That is, the compression of the fluid in the chamber 170 helps to slightly bulge the solid material of the fixing body 110 in the area of the inner side wall 130, and therefore both the size of the housing 140 is reduced, allowing the container 10 to be fixed.
  • the fixing body 110 forms a closed volume that is perimetrically formed by the outer side wall 120 and the inner side wall 130.
  • the inner side wall 130 has a reciprocal shape to the perimeter contour of the side wall 12 of the container 10, since the Inner side wall 130 is adapted to contact side wall 12 of container 10.
  • the outer side wall 120 extends toward the inner side wall 130 closing the closed volume of the attachment body 110.
  • the fixing body 110 has an annular shape to completely surround the lower end of the side wall 12 of the container 10, so that pressure can be applied around the entire perimeter contour of the lower end of the container 10.
  • the fixing body 110 has the annular shape with the two inner 130 and outer 120 side walls arranged parallel to each other, the outer side wall 120 extending towards the inner side wall 130 to form the closed volume of the fixing body 110.
  • the Inner side wall 130 of the fixing body 110 is a concave annular wall, which forms the housing 140 of the fixing body 110, while the outer side wall 120 is a wall that has a convex annular section 123 and two straight sections 124 and 125 arranged at each end of the convex annular section 123, each of the two straight sections 124 and 125 of the outer side wall 120 being joined with a respective or end of the convex annular section of the inner side wall 130 to form the closed volume of the fixing body 110.
  • the fixing body 110 could be formed by two or more pieces that are arranged in opposite positions of a circular distribution to establish contact with two or more reciprocal parts of the side wall 12 of the container 10.
  • each of the The pieces would comprise an outer side wall 120, an inner side wall 130, and a fluid chamber 170, the housing 140 of the container 10 being formed by the inner side walls 130 of the fixing body pieces 110.
  • Each of the pieces could be actuated by a respective actuating element 160, said elements 160 acting synchronously to fix the container 10, or a single actuating element 160 is used that acts simultaneously on all the parts, such as, for example, an annular gasket that surrounds and contacts the parts of the container. fixing body 110 by its outer side walls 120.
  • the chamber 170 extends longitudinally in a direction parallel to the inner side wall 130 of the fixing body 110. In this way all the points of the chamber 170 are arranged at the same distance from the inner side wall 130, which is the part of the fixing body 110 adapted to deform to contact the side wall 12 of the container 10 to fix it, and therefore the fixing force exerted is essentially uniform.
  • the chamber 170 is arranged in an intermediate position between the outer side wall 120 and the inner side wall 130 of the fixing body 110, said intermediate position being closer to the inner side wall 130 than to the outer side wall 120.
  • the inner side wall 130 is of reduced thickness compared to the rest of the fixing body 110, so that when the force F is applied on the fixing body 110, the fluid inside the chamber 170 is compressed generating multiple moments of force in the direction in which the material of the fixing body 110 offers less resistance, that is to say in the direction of the inner side wall 130 of reduced thickness.
  • the direction of the multiple moments of force generated by the compression of the fluid in the chamber 170 is represented by arrows.
  • the actuator member 160 is configured to generate the force F in a direction perpendicular to the inner side wall 130 of the clamp body 110, so that a perpendicular force is indirectly applied to the side wall 12 of the container 10.
  • the The use of chamber 170 filled with compressible fluid allows the force F to be applied in any direction. That is, the force F can be applied to any area of the fixing body 110 except for the inner side wall 130 which is in contact with the side wall 12 of the container 10.
  • the arrangement of the chamber 170 close to the side wall The reduced thickness interior 130 favors that the force F can be applied in any direction, since the multiple moments of force generated by the compression of the fluid in the chamber 170 will tend to be directed in the direction of the interior side wall 130.
  • the actuator element 160 is configured to generate the force F at a single point on the outer side wall 120 of the fixing body 110. That is, the force F can be applied in a small area of the fixing body 110 and not requiring excessive force to establish fixation. A force applied to any point on the outer side wall 120 will cause compression of the fluid in chamber 170 generating multiple moments of force.
  • the clamping device 100 additionally comprises a sole 150 for supporting the bottom 13 of the container 10.
  • the sole 150 is at least partially housed in the housing 140 of the clamping body 110, so that the height of the clamping device 100 is reduced. making it more compact.
  • the sole 150 has an annular configuration with a through hole for the passage of an ejector cylinder that is used to facilitate the extraction of the container 10 when the forming of the same has been completed. Sole 150 can feature a top reciprocally to the bottom of the container 10.
  • the arrangement of the sole 150 partially housed in the housing 140 allows the inner side wall 130 to be in contact with the lower end of the side wall 12 of the container 10 during the fixing of the container 10.
  • the actuator element 160 applies the Force F
  • the inner side wall 130 of the fixing body 110 is deformed, fixing the container 10 by the lower rib 15 that joins the side wall 12 with the bottom 13 of the container 10.
  • the inner side wall 130 of the fixing body 110 faces the lower rib 15 of the lower end of the side wall 12 of the container 10.
  • the lower rib 15 is an area of the container 10 that has a greater thickness than the side wall 12, since the material of the side wall 12 undergoes an elongation during the formation of the container 10 , while the lower rib 15 does not undergo the same elongation, so that by fixing the container 10 by the lower rib 15 a greater pressure can be applied than by fixing the container 10 by the side wall 12 in an area above the rib 15.
  • Chamber 170 is confined within clamp body 110, chamber 170 being sealed. In this way, it is ensured that there is no leakage to the outside of the fluid from the chamber 170.
  • the chamber 170 has a communication port with the exterior of the fixing body 110. Said communication port can be used to compensate the pressure. inside chamber 170 and / or for filling the compressible fluid.
  • the fluid that chamber 170 is filled with can be any understandable fluid.
  • the fluid can be oil, water, or even air.
  • Actuator element 160 can be a mechanical actuator, a pneumatic actuator, or a hydraulic actuator.
  • the actuator element 160 can be a cylinder actuated by a spring or a cam that makes it possible to establish a point contact with the fixing body 110, or it can be a channel in contact with the fixing body 110 through which it circulates a pneumatic or hydraulic fluid and which also makes it possible to establish a point contact on the fixing body 110.
  • the fixing body 110 is made in two independent pieces, the chamber 170 being arranged between the two pieces.
  • the two pieces can be joined by any means known in the art, such as welding.
  • the chamber 170 has sealing gaskets 180 in the joint area with the two independent pieces of the fixing body 110 to prevent fluid leakage between the joint area of the two pieces.
  • the embodiment of the fixing body 110 in two or more pieces facilitates its manufacture.
  • the clamping device 100 of the invention can be used in a clamping device 300 of a forming machine of the state of the art.
  • Said fixing device 300 comprises two superimposed annular pieces 310 and 320 and an actuation means 330.
  • the two superimposed annular pieces are an annular piece of solid material 310 and an annular piece of deformable material 320 (such as an annular gasket), being actuation means 330 arranged in contact with annular piece of deformable material 320 to apply a force thereon 320 and compress it.
  • the fixing device 100 of the invention is arranged between the container 10 and the fixing device 300 of the forming machine of the state of the art, in this way the annular seal 320 does not remain in contact with the container 10, thus avoiding that the gasket 320 is worn by friction with the container 10 during the extraction and insertion of the same, and also preventing the gasket 320 from rubbing with the container 10 and can stain it.
  • the actuating element 160 of the fixing device 100 the actuating means 330 of the fixing device 300 is used, which can be mechanical, pneumatic or hydraulic actuating means.
  • FIGs 7 to 15 show another embodiment of the fixing device 100 of the container forming machine of the invention.
  • the clamping device is identical to that shown in Figure 2, differing only in the way that the actuator 160 generates the force F on the outer side wall 120 of the clamping body 110 to compress the fluid in the chamber 170 and deform inner side wall 130.
  • the fixing device 100 of Figures 7 to 15 comprises a fixing body 110 with an outer side wall 120 and an inner side wall 130 defining a housing 140 to receive the container 10, a sole 150 to support the bottom 13 of the container 10, and an actuator element 160 that is configured to generate a force F on the fixing body 110 by contacting the inner side wall 130 of the fixing body 110 with the side wall 12 of the container 10.
  • the fixing body 110 is a body of solid material and has inside a chamber 170 with a compressible fluid that is arranged in an intermediate position between the outer side wall 120 and the inner side wall 130 of the fixing body 110 , said intermediate position being closer to the inner side wall 130 than to the outer side wall 120, and the actuator element 160 is configured to generate the force F on the outer side wall 120 of the fixing body 110 by compressing the fluid in the chamber 170 and deforming the inner side wall 130 to secure the container 10.
  • Chamber 170 is in fluid communication with an area 121 of outer side wall 120, and actuator member 160 is configured to generate force F on area 121 of outer side wall 120 of clamp body 110 by compressing fluid from the camera
  • the area 121 of the outer side wall 120 has a button 122 that is actuated by the actuator element 160 to compress the fluid in chamber 170.
  • the actuator element 160 is configured to generate the force F on the button. 122 of the outer side wall 120 of the fixing body 110 compressing the fluid in the chamber 170 and deforming the inner side wall 130 to fix the container 10.
  • Chamber 170 extends longitudinally in a direction substantially parallel to inner side wall 130 of attachment body 110 between two fluid manifolds 171 and 172, the two fluid manifolds 171 and 172 being in fluid communication with zone 121 of the wall outer side 120 of the fixing body 110.
  • the two fluid collectors 171 and 172 are arranged at opposite ends of the chamber 170, so that the compression of the fluid in the chamber 170 applied from the area 121 of the outer side wall 120 is distributes evenly from the two manifolds 171 and 172.
  • a single point of chamber 170 may be directly in fluid communication with area 121 of outer side wall 120 of fixing body 110, without using the two manifolds
  • the area 121 of the outer side wall 120 of the fixing body 110 that has the pushbutton 122 is in contact with a fluid pre-chamber 173 which is in fluid communication with one of the manifolds 171 via a first conduit 174 and in fluid communication with the other of the manifolds 172 through a second conduit 175.
  • the sole 150 of the fixing device 100 of the exemplary embodiment shown in Figures 7 to 15 is at least partially housed in the housing 140 of the fixing body 110, in such a way that that the inner side wall 130 of the fixing body 110 is in contact with the lower end of the side wall 12 of the container 10 during the fixing of the container 10.
  • the actuating element 160 applies the force F
  • the lateral wall is deformed interior 130 of the fixing body 110 fixing the container 10 by the lower rib 15 that joins the side wall 12 with the bottom 13 of the container 10.
  • the fixing body 110 forms a closed volume that is perimetrically formed by the outer side wall 120 and the inner side wall 130.
  • the inner side wall 130 has a reciprocal shape to the perimeter contour of the side wall 12 of the container 10, since the Inner side wall 130 is adapted to make contact with the side wall 12 of the container 10.
  • the outer side wall 120 extends towards the inner side wall 130 closing the closed volume of the fixing body 110.
  • the fixing body 110 has an annular shape to completely surround the lower end of the side wall 120 of the container 10,
  • the outer side wall 120 has a convex annular section 123, a first straight section 124 and a second straight section 125, the first straight section 124 is connected with one end of the convex annular section 123 and the second straight section 125 is connected with the other end of the convex annular section 123, and each of the two straight sections 124 and 125 it is connected to one end of the inner side wall 130 that defines the housing 140 to receive the container 10.
  • the area 121 of the outer side wall 120 that has the push button 122 is arranged in the convex annular section 123.
  • the chamber 170 filled with the compressible fluid is annular and is arranged parallel to the inner side wall 130 of the fixation body 110, therefore, the chamber 170 surrounds the housing 140 of the fixation body 110.
  • the sole 150 has a base 151 with a protrusion 152 that is disposed in the housing 140 of the fixing body 110, the bottom 13 of the container 10 bearing at the upper end of the protrusion 152 when the Container 10 is arranged in the housing 140.
  • the base 151 is attached to the second straight section 125 of the outer side wall 120 of the fixing body 110 and the projection 152 partially covers the inner side wall 130 of the fixing body 110.
  • the projection 152 has an annular shape that is perpendicular to the base 151.
  • the annular shape is reciprocal to the inner side wall 130 of the fixation body 110 to fit snugly into the housing 140 of the fixation body 110.
  • the sole 150 has a through hole for the passage of an ejector cylinder that is used to facilitate the extraction of the container 10 when the shaping of the same has been completed.
  • the base 151 and the projection 152 have a central hole for the passage of the ejector cylinder.
  • the upper end of the projection 152 of the sole 150 may be reciprocally shaped to the bottom 13 of the container 10.
  • the projection 152 of the sole 150 covers approximately half the height of the inner side wall 130 of the fixing body 110, so that the fixing of the rib 15 of the container 10 is established approximately at the half the height of the inner side wall 130 of the fixing body 110.
  • the inner side wall 130 of the fixing body has a slight inclination towards the sole 150, so that the extraction and insertion of the container 10 in the housing 140 of the fixing body is favored.
  • the inclination is approximately between 1 or - 2 , or with respect to the vertical.
  • the sole 150 is attached to a cap 190 and the attachment body 110 is arranged between the cap 150 and the sole 150, such that the attachment body 110 is axially retained between the cap 190 and the sole 150.
  • the base 151 of the The sole has through holes 153 that are aligned with through holes 126 in the fixing body 110 and with through holes 191 in the cap.
  • the cover 190 is fixed to the sole 150 by means of screws 192 that pass through the through holes 153 of the sole 150, the through holes 126 of the fixing body 110 and that thread into the holes 191 of the cover 190. (See Figures 12 and fifteen).
  • the clamping station 220 has a housing 221 into which the clamping body 110 and the sole 150 of the clamping device 100 are inserted.
  • the housing 221 of the clamping station 220 has an annular shape that is reciprocal to the annular shape of the clamping body 110.
  • the actuator element 160 of the clamping device 100 is arranged in the clamping station 220.
  • the actuator element 160 comprises a lever 161 that can be pivoted between a rest position where the button 122 of the clamping body 110 is activated compressing the fluid in the chamber. 170 (see Figure 13) and a tilted position where the pushbutton 122 is deactivated without compressing the fluid in chamber 170 (see Figure 14).
  • the lever 161 is mounted on a pivot shaft 222 arranged in an appendix 223 of the clamping station 220, the lever 161 has a first end 162 which is actuated by a cam 201 of the forming machine 200 to pivot the lever 161 of the rest position to the tilted position, and a second end 163 having a bolt 164 to actuate the pushbutton 122 of the fixing body 110, the lever 161 has a spring 167 arranged between the first end 162 of the lever 161 and the station of clamping 220 to keep the lever 161 in the rest position with the bolt 164 of the second end 163 of the lever 161 acting on the pushbutton 122, such that when the cam 201 acts on the first end 162 of the lever 161 the spring 167 is compressed by tilting the lever 161 on the axis of rotation 222 towards the tilted position and leaving the bolt 164 to actuate the pushbutton 122.
  • the first end 162 of the lever 161 has two screws 165 that are inserted in two respective sleeves 166, and each screw 165 is biased by a spring 167 disposed between the first end 162 of the lever 161 and the clamping station 220 for holding the lever 161 in the rest position, the two screws 165 being in diametrically opposite positions of the first end 162 of the lever 161.
  • the lever 161 has a curved shape in "T"
  • the first end 162 has two wings that project outwards, and in each wing there is one of the screws 165 that projects perpendicularly through the sleeve 166 towards the clamping station 220
  • the second end 163 of the lever 161 has the bolt 164 projecting vertically through another sleeve 168 towards the clamping station 220.
  • the bolt 164 of the second end 163 of the lever 161 is aligned in a central position with respect to the s two springs 167 of the first end 162 of the lever 161.
  • the arrangement in a curved shape in "T" favors the tilting of the lever 161 on the axis of rotation 222, that is to say the two springs 167 arranged in diametrically opposite positions of the first end 162 lever 161 prevent that when the cam 201 contacts the lever 161 misalignment occurs in the axis of rotation 222.
  • the bolt 164 projects vertically from the second end 163 of the lever 161 contacting the pushbutton 122 of the clamping body 110 through a hole 224 of the clamping station 220.
  • Lever 161 has a wheel 169 that is rotatably mounted on the first end 162 of lever 161 to be actuated by cam 221 of forming machine 200. Wheel 169 favors actuation of cam 201 on the lever, since the actuation of the cam 201 on the lever 161 is carried out according to a circular path of the cam 201, as described below.
  • the clamping table 210 has the clamping stations 220 with the clamping devices 100 on its periphery in a circular distribution, and from the supply line the containers 10 are supplied to the clamping table 201.
  • the clamping table 210 goes rotating on its horizontal axis in an indexed manner in defined positions, and for each rotated position, the tool table 230 advances and retreats according to movements A and B (See Figure 1) so that the tool stations 240 form the containers 10, of so that the container 10 attached to a clamping station 220 is fully formed after the clamping table 210 completes a 360 ° turn.
  • the cam 201 is arranged at the height of the first tool station 240, and at that moment, when the clamping table 210 rotates one position, the lever 161 of the clamping station 220 that faces said first tool station 240 is pushed by the cam 201 to allow the exit of a fully formed container 10 and the loading of a new container 10, then the clamping table rotates another position, and the cam 201 stops operating the lever 161, so that the container 10 remains fixed in its clamping station 220 until one turn of the clamping table 210 is completed, and the clamping station 220 returns to the height of the first tool station 240 so that the cam 201 reacts the action. lever 161.
  • the clamping table 210 has a rotational movement about a horizontal axis, indexed in defined positions.
  • Said clamping table 210 comprises the plurality of clamping stations 220 arranged on its periphery, the number of clamping stations 220 being usually between sixteen and fifty, the number being frequently forty.
  • the containers 10 progress through the transformation process, they arrive to the clamping table 210 by means of the feeding line in sequence, the containers 10 being fed to said clamping table 210, and each container 10 being arranged in one of the clamping stations 220.
  • Figures 3 to 5 show the steps in the procedure for fixing a container 10 using the fixing device 100 described above.
  • a first step represented in Figure 3
  • the container 10 is arranged facing the fixing device 100.
  • the container 10 is arranged axially facing the housing 140 of the fixing body 110.
  • a second step represented in Figure 4
  • the container 10 is inserted into the housing 140 of the fixing body 110, leaving the bottom 13 of the container 10 resting on the sole 150 and the side wall 12 of the container 10 facing the inner side wall 130 of the fixing body 110.
  • a Third step represented in Figure 5, by means of the actuator element 160, the force F is applied on the outer side wall 120 of the fixing body 110, compressing the fluid in the chamber 170 and deforming the inner side wall 130 to fix the container 10.
  • the fixing of the container 10 by the fixing body 110 is established by the lower rib 15 of the container 10 which joins the side wall 12 with the bottom 13 of the container 10.
  • the various operations on the container 10 are carried out in the forming machine 200 until its side wall 12 and its neck are formed.
  • the force F is no longer applied on the fixing body 110 releasing the container 10, and by means of an ejector element (not represented in the figures) the extraction of the container 10 from the housing 140 of the fixing device is caused 100.
  • the tool station 240 advances with the translational movement A towards the container clamping station 220. Due to the use of the forming machine, the tool station 240 may be slightly misaligned with respect to the clamping station 220, so that during said translation movement A, the tool station 240 does not contact adequately the container 10. Holding the container 10 at its lower end at the height of the bottom 13 allows the container 10 to have a slight radial play at its open end 14 that allows compensation for misalignment (represented by a curved arrow in Figure two).
  • the station 240 contacts the side wall 12 and causes the container 10 to tilt slightly, allowing the advance of the tool station 240 towards the clamping station. 220 and therefore allowing the conformation of the container 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

La présente invention concerne une machine de formage de contenants qui comprend une table (210) avec des postes d'outils (240), les tables sont situées face à face et sont mobiles l'une par rapport à l'autre, chaque poste de fixation (220) a un dispositif de fixation (100) qui comprend un corps de fixation (110) avec une paroi extérieure (120) et une paroi intérieure (130) qui définit un logement (140) pour recevoir un contenant (10), une semelle (150) pour servir d'appui au fond (13) du contenant (10) et un actionneur (160) qui est configuré pour générer une force F sur le corps de fixation (110) mettant en contact la paroi intérieure (130) avec la paroi latérale (129 du contenant (10), le corps de fixation (110) est réalisé en matériau solide et comprend à l'intérieur, une chambre (170) avec un fluide compressible qui se place dans une position intermédiaire entre la paroi extérieure (120) et la paroi intérieure (130), et l'actionneur (160) est configuré pour générer la force F sur la paroi extérieure (120) comprimant le fluide de la chambre (170) et déformant la paroi intérieure (130) pour fixer le contenant (10).
PCT/ES2020/070657 2019-10-29 2020-10-27 Machine de formage de contenants et procédé de fixation d'un contenant WO2021084150A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19382937.1 2019-10-29
EP19382937 2019-10-29

Publications (1)

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WO2021084150A1 true WO2021084150A1 (fr) 2021-05-06

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4344847A1 (fr) * 2022-09-28 2024-04-03 Tetra Laval Holdings & Finance S.A. Réglage de machine pour la production d'emballages pour contenir des aliments liquides

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001411A (en) * 1977-07-11 1979-01-31 Olsson H Hydraulic sealing device
FR2436643A1 (fr) * 1978-09-21 1980-04-18 Ligure Tubettificio Dispositif de blocage pour boites, pots et autres corps cylindriques
EP0275369A2 (fr) 1987-01-21 1988-07-27 FRATTINI S.p.A.-COSTRUZIONI MECCANICHE Machine pour former des cônes et colerettes pour boîtes aérosols et analogues
IT1216844B (it) 1987-01-21 1990-03-14 Frattini Costr Mecc Mezzi di presa e di controllo per il posizionamento di oggetti sottoposti a lavorazioni in genere, e/o lavorazioni multiple sequenziali, in particolare eseguibili su macchine operatrici.
DE3909630A1 (de) * 1989-03-23 1990-09-27 Daimler Benz Ag Spannwerkzeug zum kraftschluessigen und hochpraezisen spannen von werkstuecken
JPH0919731A (ja) 1995-07-05 1997-01-21 Takeuchi Press Ind Co Ltd 容器ホルダー
WO2001034990A1 (fr) * 1999-11-11 2001-05-17 Innotech Engineering Gmbh Dispositif de serrage ou de freinage
US20040262855A1 (en) * 2003-06-30 2004-12-30 Andre Eugene R. Workpiece holder
JP2005334942A (ja) 2004-05-27 2005-12-08 Mitsubishi Materials Corp 缶の製造装置
WO2006069609A1 (fr) 2004-12-27 2006-07-06 Frattini S.P.A. Costruzioni Meccaniche Dispositif de verrouillage selectif et progressif de recipients metalliques
EP2190605A1 (fr) 2007-06-13 2010-06-02 FRATTINI S.p.A.-COSTRUZIONI MECCANICHE Dispositif de préhension et de manipulation destiné à des récipients métalliques
EP2364793A1 (fr) 2010-03-10 2011-09-14 HINTERKOPF GmbH Dispositif de formage
JP2018089691A (ja) * 2016-11-29 2018-06-14 ユニバーサル製缶株式会社 ボトル缶製造装置

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001411A (en) * 1977-07-11 1979-01-31 Olsson H Hydraulic sealing device
FR2436643A1 (fr) * 1978-09-21 1980-04-18 Ligure Tubettificio Dispositif de blocage pour boites, pots et autres corps cylindriques
EP0275369A2 (fr) 1987-01-21 1988-07-27 FRATTINI S.p.A.-COSTRUZIONI MECCANICHE Machine pour former des cônes et colerettes pour boîtes aérosols et analogues
IT1216844B (it) 1987-01-21 1990-03-14 Frattini Costr Mecc Mezzi di presa e di controllo per il posizionamento di oggetti sottoposti a lavorazioni in genere, e/o lavorazioni multiple sequenziali, in particolare eseguibili su macchine operatrici.
DE3909630A1 (de) * 1989-03-23 1990-09-27 Daimler Benz Ag Spannwerkzeug zum kraftschluessigen und hochpraezisen spannen von werkstuecken
JPH0919731A (ja) 1995-07-05 1997-01-21 Takeuchi Press Ind Co Ltd 容器ホルダー
WO2001034990A1 (fr) * 1999-11-11 2001-05-17 Innotech Engineering Gmbh Dispositif de serrage ou de freinage
US20040262855A1 (en) * 2003-06-30 2004-12-30 Andre Eugene R. Workpiece holder
JP2005334942A (ja) 2004-05-27 2005-12-08 Mitsubishi Materials Corp 缶の製造装置
WO2006069609A1 (fr) 2004-12-27 2006-07-06 Frattini S.P.A. Costruzioni Meccaniche Dispositif de verrouillage selectif et progressif de recipients metalliques
EP1830974A1 (fr) 2004-12-27 2007-09-12 FRATTINI S.p.A.-COSTRUZIONI MECCANICHE Dispositif de verrouillage selectif et progressif de recipients metalliques
EP2190605A1 (fr) 2007-06-13 2010-06-02 FRATTINI S.p.A.-COSTRUZIONI MECCANICHE Dispositif de préhension et de manipulation destiné à des récipients métalliques
EP2364793A1 (fr) 2010-03-10 2011-09-14 HINTERKOPF GmbH Dispositif de formage
JP2018089691A (ja) * 2016-11-29 2018-06-14 ユニバーサル製缶株式会社 ボトル缶製造装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4344847A1 (fr) * 2022-09-28 2024-04-03 Tetra Laval Holdings & Finance S.A. Réglage de machine pour la production d'emballages pour contenir des aliments liquides
WO2024068428A1 (fr) * 2022-09-28 2024-04-04 Tetra Laval Holdings & Finance S.A. Réglage de machine pour la production d'emballages pour contenir des aliments liquides

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