FR2651761A1 - APPARATUS FOR THE AUTOMATIC INSTALLATION, IN PARTICULAR OF AN ADHESIVE TAPE ON A PRODUCT. - Google Patents

Abstract

The apparatus is remarkable in that it comprises means for gripping a portion of the tape in order to position it opposite a winding member (4) capable of cooperating with the product in order to grip it on at least one. turn with the part of the tape gripped without leaving any protruding tabs, the relative approach or distance between the winding member and the product being carried out on the same side.

Description

The invention applies more particularly to the laying of a ribbon

  adhesive on threadlike products including strands or bundles of wires, without excluding other

  products to be maintained between them.

  It has already been proposed for clamps allowing the installation of a bond in the form of an adhesive tape on bundles of son or

  other. This state of the art can be illustrated by teaching

  French Patent No. 2,605,260 given by way of example

indicative in no way limiting.

  With this type of clamp, it appears that after having

  Tightened the beam by means of adhesive tape, the link thus posed has protruding parts of said beam. We understand that

  it is not aesthetic. Moreover, in certain cases of

  these protruding parts can cause problems.

  Finally. the action of these clamps is limited because it is not possible to do more than one round of tape on

the product concerned.

  We also know devices strapping type.

  In this case, generally, the product is introduced on one side to be subjected to the action of the adhesive tape, but can not be removed from the same category. This laying technique proves to be incompatible in the case of beams or long strands where it is necessary to lay a large number of

  links to different places the length of the product.

  The invention aims to remedy these

  disadvantages in a simple and effective way.

  The problem to be solved by the invention is to be able to automatically lay bonds in the form of adhesive tape so as to enclose the entire section of the beam, strand or other products, without any protruding part.

  The problem is solved in that the apparatus

  takes means for gripping a portion of the ribbon to position it facing a winding member adapted to cooperate with the product to enclose it on the e ns a turn with the part of the ribbon seized without leaving any flowing parts, the approximation or relative distance of the winding member {{and the product being carried out on the same side. Since the product is introduced and removed from the same side of the active working part of the apparatus, it is

  possible to put links on products of great length.

  Advantageously, the problem is solved in that

  winding member is constituted by a rotating head

  sensing a radial opening capable of causing concomitantly the portion of the tape seized around the product which cooperates with

  immobilization means in rotation.

  To solve the problem of being able to grasp one end of the ribbon, the gripping means are constituted by an articulated gripper that engages with members able to grip and unroll a length of ribbon to position it next to

  the opening of the winding head in combination with the

  said clamp. The clamp has on both sides of, the winding member, two hinged flanges coupled to a control member of the jack type; at the end of these two flanges and between these is mounted a transverse flange

  adapted to ensure the laying of the free end of the ribbon in combination with

  with profiled fingers mounted between said flanges and

  subject to a control organ.

  According to another characteristic. Training of

  The winding head is carried out by a system of gear wheels.

jettis to a geared motor.

  The periphery of the head meshes with two pinions 3n arranged symmetrically with the axis of rotation of said head and at an angle greater than the angle of the radial opening of the head.

  head, said gears meshing with a motor pinion.

  The opening of the rotating head is of profii compl -

  the product to be clamped, said opening shall be

  both a pad adapted to allow the training of the ribbon.

  The problem posed to enclose the section of the product

  in a safe and effective way is also solved by the

below.

  The apparatus present at the winding member

  a means capable of cutting the length of the tape seized. At the level of the winding member, the adhesive tape cooperates with a shaped support member to prevent the eventual

  withdrawal back of said ribbon under the effect of its elasticity.

  The immobilization means of the product consist of articulated fingers mounted in combination with the flanges of the clamp, and whose free ends are profiled to ensure the immobilization of the product under a pivoting effect

  said fingers are subject to a control member.

  According to another characteristic, all the

  yens constituting the apparatus and able to solve the problem posed

  are enslaved by an automatism to ensure the cycle of func-

  following: - angular rotation of the clamp and closing of the

  grasping means for grasping the free end of the ribbon

hésif.

  lowering the clamp to pull a ribbon ribbon and position it foxing the opening of the winding member.

  - Opening gripping means of the clamp.

  - put in contact with the product and the part of the ribbon

  grabbed adhesive for positioning said tape and said tape

  in the opening of the winding member.

  - Closing of the immobilizing fingers of the product.

  - control in rotation of the winding member and the

cutting medium.

  The invention is described below in more detail with the aid of the accompanying drawings in which:

  Figure 1 is a schematic view of the apparatus.

  The fioure 2 is a front view of the apparatus.

  Figure 3 is a larger scale a view

  in section IonQitL'inal of a part of tVappareil at the no-

especially the winding head.

  FIG. 4 is a plan view corresponding to the

Figure 2.

  FIG. 5 is a perspective view of a form of

  realization of the winding head ..

  Figures 6 to 1i are schematic views of

  showing the main phases of the operation of the

  mera. FIG. 12 is a cross-sectional view of a bundle or strand of products maintained by a link under

  form of an adhesive tape placed by the apparatus according to the invention.

  The body of iJappareii designated as a whole by i comprises a rotary support (2) in the form of a reel for example shaped to receive the adhesive tape (R) conditioned

in roll.

  The ribbon (R) is conveyed in combination with different

  three reference organs (3) at the level of the active part of

  the device shaped with means capable of ensuring the winding

  said ribbon (R) on the product concerned (P).

  For the most part, this active part includes

  yens gripping a ribbon portion to position it facing a winding member (4). As will be indicated in

  Following the description this winding orngane (4) is

  shaped in combination with other means to enclose on the mosth a turn the entire section of the product (P) without

leave projecting parts.

  The gripping means of the ribbon (R) consist of an articulated gripper (5) secured to a control means (V) in the form of a jack in particular. The clamp (5) comprises two paraillile flanges (5.a-5.b) mounted to free articulation on either side of the winding member (4). The two flanges (5.a and 5.b) are braced on the side of the winding body (4) by a transverse roller (6) intended to ensure the free end of the adhesive tape (4) in combination with shaped gripping fingers (7). The two fingers (7) in particular are arranged between the flanges (5a) and (5b) of the clamp being coupled to a control member (8) such as a cylinder for massaging their movement against the transverse roller (6). Note that the fingers (7) able to grip the ribbon are conditioned to ensure sGr and effective maintenance of the latter during its course and facilitate its release

  when introducing the product into the clamp or vice versa.

  For example, the fingers (7) are made of a relatively soft plastic material while their free end has a semicircular profile (7a) complementary to that of the section of the roller (6) to ensure in combination the pinching of the end seized ribbon. The roll (6) is

  streaked along its generators and is executed in steel.

  According to an important characteristic of the invention, the winding member (4) is constituted by a rotating head having a radial opening (4.a) capable of driving in a concomitant manner the part of the ribbon (R) seized at as the rotation of said head in combination with immobilizing means (9) of said product. The rotational drive of the head (4) is performed by a system of pinions

  subject to a geared motor (10).

  As shown more particularly in Figure 3, the periphery of the head (4) meshes with two pinions (11) and (12) arranged symmetrically with respect to the axis of rotation of the head (4). These two gears (11 and 12) are offset behind the axis of rotation of the head (4) and meshing with a motor pinion (13). In addition, the pinions (11 and 12) are angularly offset at an angle (A) greater than the angle (B) formed by the radial opening (4a) of the tSte (4). By way of non-limiting example, the opening angle (B) of the head (4) is about 900, while the positioning angle

  gears (11 and 12) is of the order of 1200.

  The opening (4a) of the head (4) is of a complementary profile.

-6 6

  to the product (P) to be clamped. This openness

  in addition, directly or in a reported manner

  ture able to facilitate the training of the ribbon.

  In the example illustrated in FIG. 5, the head (4) has a central core (4b) cut in a manner corresponding to

  the opening (4a); this core being realized in a material de-

  elastically formable. This core is engaged in the opening of an open cylinder (4c) whose periphery receives in whole or in part a spring steel blade (4d) or other equivalent element whose free ends are folded inside the ouYvertures the support cylinder (4c) and the central core (4b). The assembly of the head (4) thus defined can be housed inside another open cylinder (4e) whose periphery has a toothing (4f) meshing with the toothing

  driving gears (11) and (12).

  At the time of rotation of the tote (4) for the laying of the tape (R) around the product (P), the latter is

  immobilized by the means (9) constituted by articulated fingers

  the. The fingers (9) in the same way as the flasks (5a-5b) of the clamp are arranged on either side of the head (4). but opposite said flanges on a vertical plane. As shows the

  2, the flanges (5a-SbY of the clip are arranged in

  under the horizontal plane of the axis of rotation of the head (4) tan-

  say that the immobilizing fingers (9) are located above

this same plan.

  Part (9a) of these fingers (9) is profiled for

  enclose the product section (P) to immobilize it.

  In addition, the fingers (9) are coupled to a control member (14) to ensure their angular pivoting and their tilting

against the product (P).

  In known manner, at the winding head (4), the apparatus has a cutting member (15) adapted to cut the portion of the tape gripped by the clamp. For example, this member (15) may be constituted by a blade (15a) mounted to slide freely in an opening made in the part

--7 -

  of the apparatus receiving in particular the head (4) 1 the clamp (5) 1 and the immobilizing fingers (9). The blade is coupled to its

  end stopped at a control cylinder (16).

  The end of the adhesive tape (R) cooperates at the winding head (4) with a pressing pressure roller (17) shaped to prevent possible withdrawal back of said tape under the effect of its eiasticity. In addition, in a known manner different channels (18) connected to an air vacuum system

  to create a suction phenomenon ensure a good positioning

  the tape at the winding head (4).

  It is now necessary to analyze the functioning of

  the apparatus according to the invention with particular reference to

  Mernt in Figures 6 to 11 of the drawings.

  In FIG. 6f the clamp (5) is closed under the action of the actuator <y) so as to position the roll

  striated (6) above the end of the ribbon (R).

  The jack (8) is actuated to control the fingers of

  gripping (7) so as to pinch the end of the ribbon into

  pairing with the striated roller (6) (Figure 7).

  The jack (V) is then actuated in the opposite direction to angularly lower the clamp (5) arrow F <Figure 8) which has the effect of exerting traction on the end of the tape seized so as to position it next to 1 opening (4a) of the winding head (4). The actuator is then actuated (B)

  for controlling the opening of the pinch fingers (7).

  The winding head is then positioned on the

  to enclose and enclose what has the effect of engaging the adhesive tape to

  inside the opening (4a) of the winding head in

  pairing with part of the section of said product <Figure 9).

  The immobilizing fingers <9) are lowered by the action of the jack (14) to hold the product (P) in position

(Figure 10).

  It is then sufficient to control in rotation the head of

  bearing (4) via the gear system (11-12-

  13) to enclose the entire section of the product <figure - 8 11)>. Note that the cutting of the ribbon by means of the blade (15a)

  the cylinder (16) can be carried out either before the rota-

  winding head (4) figure 10, either from the start of the latter but at the latest before a complete rotation. Note that you can either wrap the ribbon around the product by controlling the head directly in one direction of rotation, or control this head a quarter of a turn in a

  meaning (inverse to that of winding) then in the direction of

  rolling which has the effect of ensuring a perfect plating of the ribbon on the product. In addition, depending on the nature of the product to be wound or its diameter, the winding head (4)

  can wrap the ribbon on several turns.

  Obviously, the various organs and control means as illustrated are enslaved by any automation of the

  known and appropriate type in combination with temporary

  porisation to ensure the indicated operating cycle.

  The advantages are apparent from the description. In

  In particular, we emphasize and recall: The automatic installation of the adhesive tape constituting a

  link without any protruding part of said product (Figure 12).

  The introduction and withdrawal of the same side of the party

active winding of the device.

_9.

Claims (5)

  -1- Apparatus for automatic laying including an adhesive tape   sif on a product characterized in that it comprises means for gripping a portion of the tape to position it facing a winding member (4) adapted to cooperate with the product to grip it on at least one turn with the part of the ribbon seized without leaving any protruding tabs, the approximation or the relative distance of the winding member and the product taking place in the same category.   -2- Apparatus according to claim I characterized in that the winding member (4) is constituted by a rotating head   having a radial opening (4a) adapted to cause concomitant   the part of the ribbon seized around the product that cooperates   with immobilization means in rotation (9).   Apparatus according to claims 1 and 2 characterized in that   that the gripping means of the ribbon are constituted by an articulated gripper (5) arranged with members (7) able to grip and unwind a length of ribbon to position it facing the opening of the winding head (4) in combination with the movement of said clamp.   -4- Apparatus according to claim 2 characterized in that the head (4.1) is rotated by a system of pinions   subject to a geared motor (10).   -5- Apparatus according to claim 4 characterized in that the periphery of the head meshes with two pinions (11) and (12) disposed symmetrically to the axis of rotation of said head (4) and at an angle (A) higher at the angle (B) of the radial opening of this head, said pinions meshing with a pinion motor (13).   - 1 - -6- Apparatus according to claim 2 characterized in that the opening of the rotating head (4) is of complementary profile to that of the product to be clamped, said opening having a   trim suitable for allowing the tape drive.   -7- Apparatus according to claim 3 characterized in that the clamp (5) has on both sides of the winding member, two hinged flanges coupled to a control member of the   type cylinder, at the end of these two flanges and between these   a transverse roller (6) adapted to take the free end of the ribbon in combination with profiled fingers (7) mounted between said flanges and secured & a control member.   -B- Apparatus according to claim 1 characterized in that it has at the winding member, means (15) fit   to cut the length of the tape seized.   -9 Apparatus according to claim i characterized in that at the winding member, the adhesive tape cooperates with a support member (17) shaped to avoid the possible withdrawal   behind said ribbon under the effect of its elasticity.   -10- Apparatus according to claim i characterized in that the immobilization means (9) of the product are constituted by articulated fingers mounted in combination with the flanges of the clamp, and whose free ends are profiled to ensure immobilization of the product under a pivoting effect   fingers subject to & a controller.   Apparatus according to any one of claims 1 to 10   characterized in that the various means are controlled by an automatism to ensure the following operating cycle: - angular pivoting of the clamp (5) and closure means - i1 -   gripper (7) to grip the free end of the adhesive tape.   Sif. - Lowering the clamp (5) to draw a length of ribbon and position it opposite the opening (4a) of the winding member.   - Opening the gripping means (7) of the clamp (5).   contacting the product (P) and the part of the adhesive tape with   sif capture for positioning said ribbon (R) and said pro-   duit (P) in the opening (4a) of the winding member (4).   - Closing of the immobilizing fingers (9) of the product.   - Control in rotation of the winding member (4) and the means cutting (5).