FR2558494A1 - GUIDE RAIL, IN PARTICULAR FOR A RAME CHAIN - Google Patents

Abstract

GUIDE RAIL. IT INCLUDES SUPPORT BRANCHES 3 AND 4 FOR A ROW CHAIN 2 CONSISTING OF ELEMENTS FIXED TO MOUNTS. THE FRAMES CAN BE MOVED BY SLIDERS 9 AND 10 HELD IN GORGES 7 AND 8 IN UNDERCOUNT, PROVIDED IN GUIDE RAIL 1. TEXTILE INDUSTRY.

Description

Track of uidage, in particular for a chain of oar.

  The invention relates to a common guide rail

  taking horizontal and vertical support branches

  for a chain of trains consisting of

  and / or grippers, which are fixed to frames that can be moved by sliders connected to the

supporting branches.

  In the guiding and support devices which are known, generally for ream chains, the sliders are similarly fixed to guiding and support profiles in the form of a rail, so that,

  when worn or damaged slides are replaced

  the reaming chain must first be removed with the frames carrying the needle elements and / or

  pliers, before you can fit new slides.

  To simplify this assembly work, we have

  to use, as far as possible, sliders of great length which, however, are subjected to thermal stresses because of the temperature conditions prevailing in the reaming chain, because

  slides made of composite material pre-

  feel a modulus of elasticity different from that of

rail material.

  To facilitate the replacement of slides

  worn or damaged, it is known, by the model of use

  Federal Republic of Germany number 78 23 290, to fix the slides not on the guide rails, but on the frames of the needle and / or gripper elements. This constitution makes it possible to fix the various frames according to a mass production, for example, by riveting, the slides

  before fixing them. The small length

  sliders that correspond to the low lon-

  The frame of the frame excludes twisting of the material, which is known in sliders of great length and which is due to thermal expansion. When replacing worn or damaged slides,

  It is possible to remove from the train

  which, preferably, is in two parts, in order to

  to be able to change the slides that are fixed there.

  Any reduction of the relaxation or even disassembly of the ream chain is thus superfluous. By providing an adequate reserve of frames provided with slides,

  can make a replacement in a short time.

  As a rule, the sliders of a

  chain of wheels are used in a uniform way

  you have to change the slides as a whole

  when they have reached a certain state of wear.

  However, for a complete exchange of all the slides, the known attachment of the individual slides to the frames also requires a considerable time which entails corresponding downtimes for the train. The invention proposes to be able to use, for guiding and supporting a rowing chain,

  slides as long as possible

  ble, without the temperature conditions prevailing in the train, and the tendencies of the sliders to be

  sliding material, to the point that the sliding

  Buckets are damaged or break.

  Starting from a guide rail of the type

  written at the beginning of this memoir, the problem

  is resolved according to the invention in that the slides

  buckets are kept in countercurrent throats.

  which have a cross-section in the shape of a hammer head or dovetail and extend over

the length of the guide rail.

  By mounting, according to the invention, the slides

  buckets in gorges extending the length of the

  guiding rail, sliders even of great length

  can undergo, almost unhindered, a change in

  their length without the fastening rivets or other similar organs, opposing such a modification. Housing the sliders in the longitudinal grooves of rails, according to the invention, offers the further advantage of allowing the exchange of worn or damaged slides, without disassembly or reassembly of individual links of the chain or even parts thereof only. In addition, no additional means is needed to rigidly connect the sliders to the guide rails. According to an improvement of the invention, the grooves which serve to receive the sliders

  can be formed by the shape of the trans-

  versale of the horizontal and vertical branches of the rail

guidance.

  However, according to another improvement of the invention, the grooves can also be formed by sheet metal profiles which have a C-shaped cross-section and which are fixed to the support branches.

  by countersunk screws in the sheet metal profiles.

  If the tensile force in width of a tissue to be trans-

  carried by a train must be absorbed by wheels

  ball elements on the frames of elements

  needles and / or tongs, one can, according to another person

  of the invention, replace the slides

  buckets concerned with spring strips which extend continuously over the length of a strand of the reaming chain. Continuous spring strips provide the ball bearings with an uninterrupted raceway, which avoids runway interruptions.

balls that cause jolts.

  As a sufficient elasticity of the strips

  spring is only ensured if they are rela-

  Finally, the invention finally provides, according to an improvement, that the strips for

  spring are applied to compensating parts

  which are held coaxially together with the spring strips in the grooves, with

possibility of sliding.

  Rn using compensation parts,

  it is possible to provide the guide rail with grooves with a di-

  unitary scale, so as to be able to introduce

  choice of thick-walled sliders or sheets

thin larders for spring.

  In the attached drawing, given only for

For example:

  Figure 1 is a cross-sectional view of a guide rail, with sliders on the two branches; Figure 2 is a cross-sectional view of a guide rail, with a slider on one branch and with a spring strip on another branch; Figure 3 is a cross-sectional view

  of a guide rail having profiled sheet metal sections

  for the reception of a slider or sheet

  bacon for spring; and FIG. 4 is a schematic plan view of a pair of tenter chains having strips

  for spring extending over the length of the strand.

  A guide rail 1, whose transverse is bent, and which is intended for a ream chain 2 shown in phantom, consists essentially of horizontal support legs 3 and vertical 4 and is fixed by a flange 5 to a ream , not shown, by screws 6 arranged at

  intervals over the length of the rail.

  In the support branches 3 and 4 are

  grooves 7 and 8 undercut, having in cross section the shape of a hammer head,

  slides 9 and 10 y being introduced coaxially

  the longitudinal extent of the rail 1.

  In FIG. 2, the slider 10, following the

  FIG. 1 is replaced, in the groove 8, by a sheet

  bacon for spring 11 extending over the length of

  guide rail 1 and introduced, with a piece of

  thought 12, also in the throat 8 coaxially

  longitudinal extension of the guide rail 1,

  me the slider 10 following the example of realization

of Figure 1.

  Instead of grooves 7 and 8 constituted by the shape of the cross-section of the bearing branches 3 and 4, according to the embodiment of FIG. 3, sheet metal sections 13 and 14 having a cross-section are provided. C-shaped, which are fixed by means of screws 15 and 16 to the support branches 3 'and 4'. The heads 17 and 18 of the screws 15 and 16 are embedded in the sheet metal profiles 13 and 14 so as not to project into the section

  transversal grooves 7 'and 8' formed by the

  sheet metal spindles 13 and 14. The sliders 9, 10 or the

  spring strip 11, with the compensating piece

  12, can thus be introduced without obstacle into the grooves 7, 7 'and 8, 8', coaxially on

  the longitudinal extension of the guide rail 1.

  To pocket unwanted sliding of the spring strips 11 in the direction of movement of the reaming chain, primers 19 of the spring strips 11 are, as shown in FIG. 4, curved in the form of hooks around fixed axes, in the direction of circulation

chain.

Claims (5)

  1. Guide rail (1) comprising branches   horizontal (3) and vertical (4) support   a rowing chain (2) consisting of elements with   guilles and / or grippers, which are attached to frames that can be moved by sliders (9 and 10) connected to the support legs (3, 4), characterized in that the sliders (9, 10) are maintained in undercut grooves (7 and 8) which have a cross-section in the shape of a hammer head or dovetail and extend over the length of the guide rail (1).   2. Rail according to claim 1, characterized   in that the grooves (7, 8) are formed by the conformation of the cross-section of the branches   horizontal and vertical support (3 and 4).   3. Rail according to claim 1, characterized   characterized in that the grooves (7, 8) are formed by sheet sections (13 and 14)> which have a C-shaped cross-section and which are fixed to the bearing branches (3 'and 4') by screws (15 and 16) with head (17 and 18) embedded in the sheet metal profiles (13, 14).   4. Rail according to one of claims 1 to   3, characterized in that the sliders (10) can be replaced by spring strips (11),   which extend, in a continuous way, on the length   from one strand of the oar chain (2).   5. Rail according to claim 4, characterized   in that the spring strips (11) are applied to compensating parts (12) which   are coaxially maintained together with the   spring lard (11), in the grooves (8, 8 '), with possibility of sliding.