FR2572060A1 - DEVICE FOR PREVENTING AND TRANSFERING ARTICLES COMPRISING A COLL, SUCH AS BOTTLES OR BOTTLES - Google Patents

Abstract

THIS DEVICE IS OF THE TYPE INCLUDING, FIXED ON A HANDLING OR SIMILAR FRAME, A NUMBER OF EXTENDED PARALLEL SUPPORTS ON EACH OF WHICH IS FITTED AN INFLATABLE BUCKET, THE INTERIOR OF WHICH IS CONNECTED TO PRESSURE AND DEPRESSION MEANS. ACCORDING TO THE INVENTION, EACH BLANK 18 IS CLOSED AT ITS ENDS BY TWO ENDS 22 OF GENERAL CIRCULAR OR ELLIPTICAL SHAPE. APPLICATION TO THE TRANSFER OF GLASS ARTICLES.

Description

DEVICE FOR PREVENTING AND TRANSFERING ARTICLES

  COMPRISING A COLLAR, SUCH AS BOTTLES OR BOTTLES

  The present invention relates to a gripping device

  and article transfer comprising a neck, such as bottles or flasks.

  This device is of the type comprising, as shown in FIGS.

  1 to 4 of the accompanying drawing, a number of elements (2) mounted

  to each other on the frame of a handling frame. Each element comprises a metal blade (3) integral with threaded rods (4) ensuring its attachment to the handling frame. On each blade (3) is mounted a deformable strand (5), which protrudes from the latter and whose ends are closed by gluing or mechanical pinching along two lines (6) parallel to the blade (3). Inside each coil (5) opens a pipe (7) connected to a control unit

pressure or depression.

  When a depression is created inside the coil, it is flattened, as shown in solid lines in Figure 4, which

  is a cross-sectional view.

  When a pressure of the order of 0.2 to 0.8 bar is created inside the coil, the latter inflates and takes a cylindrical shape, as shown in Figure 4, except at its ends. which, as shown in Figure 3, have a spindle shape, considering

  of their closing mode according to a vertical line.

  The device being intended to grip several rows of articles in contact with each other, and staggered in the case of cylindrical articles, the mounting of the elements (2) on the support frame is such that in the deflated position, the spacing between two adjacent strands is greater than the diameter of the neck of the articles and that in the inflated position, their spacing is less than the diameter of the neck of the

items.

  From a practical point of view, the tubes being in a deflated position

  flange, the support is lowered, so that the flanges penetrate

  between the collars (9) of the articles (10), as shown in Figure 2.

  When the tubes are in the lower position, it is proceeded to their pressurization, so that two neighboring tubes surround the collars (9) of the articles (10) on both sides of which they

are arranged.

  The fastening of the articles thus being carried out pneumatically

  that, it can be proceeded to their transfer for example from a table

  accumulation to a pallet or strapping machine.

  A first disadvantage lies in the fact that at the ends of the flanges there is, because of the spindle shape thereof, a "dead zone" at which the articles are not seized, or are seized without any security with the risk of falling in case of transfer. In addition, this dead zone is an inconvenience in the case of transfer to a cashier or to a strapping machine, because not allowing to bring the articles at the ends against a

  edge of the box or against the reference face of the machine of cer-

  clage, which leads, in the latter case, to a defective strapping

  given the cross-cutting of the articles.

  It should be noted that the dead zone is of significant length since, with reference to FIG. 3, the necks of articles bearing the reference (x) are not seized with security and should, theoretically,

  be left on the accumulation table.

  To avoid the seizure of articles whose neck is referenced (x), it is appropriate to equip the strands with tongs or retractors whose shape

  is specific to each type of article to be entered and transferred.

  Given the structure of the ends of the flanges, the central blades (3) do not extend to the ends thereof,

  which results in a poor performance of the rolls.

  In addition, considering that the tubing (7) opens at a specific point of each coil, it is not possible to control the regularity of the inflation thereof, which may for example paste

  against the lower edge of the blades (3).

  Finally, it should be noted a great difference between the heights, respectively (y) and (z), of each flange deflated position and inflated position. The importance of the value (y) limits the capacity

  of introduction of the strands between the necks of the articles and requires the use of

  configuration of special configuration of flanges comprising in particular lateral ribs for gripping short-necked articles, because without these devices, the maximum diameter of the flanges would be above the collar of the necks of the articles and would not allow grasping

of these.

  The present invention aims to remedy these disadvantages.

  For this purpose, in the device concerned, the type

  mounted on a handling frame or the like, a number of parallel elongated supports on each of which is mounted an inflatable bead, whose interior is connected to pressurizing means and depression, each bead is closed at its ends by two

  generally circular or elliptical shaped tips.

  In view of this structure, when the tubes are in pressure, they have a cylindrical shape of constant section over their entire length, allowing gripping the collars of articles up to

  immediate proximity to their ends.

  As a result, the ends of the flanges do not overflow by

  report to the body of the articles in the last row of items seized.

  In addition, since these flanges do not have, as is usually the case spindle ends, there is no risk of seeing the items located near the said ends "hunted" under the effect of the pressure. This gripping of articles to

  the ends of the strands is achieved without the need for

  complementary fonts such as forceps, spreaders or the like, as

this is the case usually.

  This structure allows the passage of the layer of articles and the gripping assembly through a frame associated with a strapping machine or centering, and the deposit or taking of items

  inside a container such as a cardboard box or a deep locker

any kind.

  According to another characteristic of the invention, the support element, housed inside each coil, is constituted by an elongated piece whose width, considered in the transverse direction, is large relative to its extended height on the side opposite to its zone of attachment to the frame by a blade-shaped part. This piece can be

  circular, elliptical, triangular, square, T-shaped, etc.

  When a depression is created in a blood sausage, this one marries

  the shape of the support element and the blade, so that

  In the traditional case, the difference in the height of the

  between the inflated position and the deflated position is small.

  This allows a sufficient introduction of the deflated beads between the short-necked articles, so that the large diameter of the flanges is located below the ring of the articles and allows the gripping of the latter after inflation, without having recourse to the use of fireworks

  annexes, such as ribs. as such is the case usually.

  In addition, the b-rd of the blade opposite the circular portion has a beveled section. cc- which avoids the risk of sticking by pinching the bead and facilitates the inflation of it. Advantageously, and given the circular shape of the ends of the flanges, each support of a flange extends over the entire length thereof. This feature, coupled with the fact that

  The support is circular in shape, provides excellent rigidity

  grasping devices, without any risk of buckling or deformation

pudding.

  According to an interesting embodiment, each support piece of a coil is constituted by a tube in which a pipe connects to pressurizing and depressurizing means, and in which are formed calibrated orifices ensuring pressurization regular

  along the length of each pudding.

  The holes in each tube have a different section

  depending on their location, the orifices located near the

  tubes larger than the diameter of the orifices

  in the central part of the tubes to take account of pressure drops.

  Finally, elements of flexible material are arranged between the outer face of the flanges and the fixing points of the supports thereof on the transfer frames. This arrangement avoids wear

  premature surgeries during inflating and deflating movements.

  flage, because of the absence of direct contact between the flanges and the

  rigid bodies for fixing their supports.

  Anyway, the invention will be well understood using the

  description which follows, with reference to the attached schematic drawing

  as a non-limitative example, a form of execution of this

  Figure 5 is a perspective view of a strand Figure 6 is a cross-sectional view on an enlarged scale;

  Figures 7 and 8 are two views from above of the device, respectively

  before and after gripping articles;

  Figure 9 is a side view of the device introducing the articles

keys inside a box.

  The device according to the invention has, mounted on a frame (12) of known type of handling, a number of elements (13) arranged parallel to each other. Each element (13) comprises a tubular element (14) fixed by a plurality of threaded rods (15) to the frame. In contrast to the threaded rods (15) is fixed on the tube (14), a blade (16) whose end, opposite the fixing end, forms

a bevel (17).

  Around the tube (14) and the blade (16) is mounted a bead (18) made of a waterproof and flexible material, the assembly of this bead being made with interposition of a flexible piece (19) between it

  and each nut (20) mounted on a threaded rod (15).

  It should be noted that each flange (18) is closed at its ends.

  mits, by circular tips (22) whose circumference is equal

  at the circumference of the flange (18).

  Inside the tube (14) housed in each coil (18), opens a conduit (23) connected to a central pressurizing and depression successive. For its part, in the tube (14), which extends over the entire length of the flange (18), are provided calibrated orifices (24), the diameter of the orifices formed near the ends of the flange being greater than that of openings in the central part

of it.

  As can be seen from Figure 6, and contrary to the usual case

  the difference between the heights (a) and (b), respectively in the deflated position and in the inflated position of the flanges, is very small, which is explained by the fact that, in deflated position, the flange is in contact

  tube (14), which limits its flattening on part of its height.

  As shown in Figures 7 and 8, it does not exist as such

  is the case usually, dead zone at the ends of the flanges.

  Indeed, in inflated position, they have a constant section over their entire length, allowing the gripping of articles up to

  immediate proximity to their ends.

  There is therefore no risk of gripping items that should normally remain on the accumulation table, and this without it

  it is necessary to use tongs or other spacer elements.

  It should be noted that the tips being flexible, the material enters the inside of the coil when a depression is created inside.

  of the latter, reducing the size of the butts (22), which is favorable

  ble for gripping small items.

  In addition, given the small differences in height between the inflated position and the deflated position, it is possible to enter items whose necks are short, without requiring the use of special configuration of strands. Finally, from a practical point of view, this device is extremely interesting because, given the absence of overhangs compared to the last row of articles, to take or to introduce them into a box (25). ) or bring them against the reference edge of a

strapping machine.

  As goes without saying, the invention is not limited to the sole embodiment of this device, described above as an example it encompasses, on the contrary, all the variants. It is thus in particular that the tips could be of elliptical shape,

  or that the support elements could be of elliptical,

  gular or T, without departing from the scope of the invention.

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Claims (7)

  1. - Device for gripping and transferring articles comprising   a collar, of the type comprising, fixed on a handling frame or the like, a number of parallel elongated supports on each of which is mounted an inflatable bead, the interior of which is connected to pressurizing means and depression, characterized in that each strand (18) is closed at its ends by two end pieces (22)   generally circular or elliptical.   2. - Device according to claim 1, characterized in that the support element, housed inside each coil, is constituted   by an elongate piece (14) whose width, considered in the transverse direction,   versale, is important compared to its extended height on the opposite side   at its attachment area on the frame by a blade-shaped portion (16).   3. - Device according to claim 2, characterized in that   the support element is of circular section.   4. - Device according to claim 2, characterized in that the edge (17) of the blade (16), opposite to the circular portion, has a beveled section.   5. - Device according to any one of claims I to   4, characterized in that each support (14) of a coil (18) extends along the entire length of it.   6. - Device according to any one of claims I to   , characterized in that each support piece of a coil is constituted by a tube (14) into which a tubular (23) connected to   means of pressurization and depression, and in which are   calibrated orifices (24) ensuring regular pressurization   along the length of each pudding.   7. - Device according to any one of claims 1 to   6, characterized in that elements of flexible material (19) are arranged between the outer face of the flanges (18) and the attachment points (20)   supports of these on the transfer frames.