FR2495197A1 - RAME, ROLLER CLIPPER AND SET OF CLAMPS AND RAILS FOR SUCH A RAME - Google Patents

Abstract

The invention relates to a train, a roller clamp and a set of clamps and rails for such a train. Said train comprises a junction which makes it possible to adjust the spacing of the sections of opposite rails and their orientation, said junction comprising a curvilinear interface delimited by a surface 26 which makes it possible to maintain a constant spacing which can always be crossed by the lower roller A of a clamp which is supported by anti-tilt main rollers B between two vertically spaced rail flanges and with which said support rollers B are kept continuously in rolling contact. Application to oars for setting off films and textile fabrics. (CF DRAWING IN BOPI)

Description

U.S. Patent No. 4,068,356

  forceps equipped with anterior or inferior rollers

  is part of the prior art relating to the oars

  with roller clamps. The lower roller is

  essentially under the gripping jaws and an inwardly spaced support roller having two rolling surfaces which roll on the inner surface of a wing

  one rail and the other rolls on an opposite wing of the said wing.

  Although the aforementioned patent relates to the problems posed by a smooth passage of support rollers from one rail wing to another, other problems, which have not been solved include those due to the limited stability of the clamp when it is a question of treating certain matters in sheet or band because of the fact that it does not exist

  longitudinally spaced support system to prevent

  the rotation of the roller clamp supported by the chain

  do not around a vertical axis or longitudinally with respect

  to the rail. Although the roller clamp is supported at

  of a transverse tilt, an inclination is

  core possible because of the lack of spaced support. Other prior art documents include U.S. Patent No. 4,134,189 which relates to a tension clamp all of whose rollers are supported substantially in the same vertical plane and which is then subject to

  transverse tilting with respect to the rail.

  A problem that may be more important than the lack of stability of the former roller clamps,

  is that which concerns the regular passage of the

  or less from one lane to another in the presence of

  the interval separating the successive sections of the rails.

  This problem posed by a regular transition between

  successive rail accidents was the main obstacle

  the construction of a pebble clamp that would avoid a rub

  slip and the current need to lubricate

the whole track.

  The problem of smooth smooth passage is not so great with conventional sliding pliers because of the inherent action of bridging the elongated sliding surface as the clamp passes over the gap. However, the rollers do not by themselves perform such bridging action on a transverse gap and the irregular movement that results from their passage over the gap is transmitted to the film or

  band, which results in an alteration of the quality of

  product. Perhaps the most important is the fact of avoiding

  excessive wear on the roller bearings and

  to the tracks by such an irregular movement.

  1.0 Accordingly, the present invention is primarily

  for object a ream equipped with a roller pliers

  in order to avoid sliding friction and the need for

to lubricate the entire rail.

  The invention further relates to a junction structure between the rails so that a lower roller can pass regularly from one raceway to another by a bridging action. Since in junctions made according to the invention the interface between the track and a junction base plate is part of a

  arc on which the rails pivot during the adjustment, the

  tervalle extends diagonally across the rails and remains

  constant for bridging when the wheel passes from one

to each other.

  The present invention also relates to a

  clamp support device comprising support rollers

  anti-tipping ports that are mounted separate on one arm

  lever so that these rollers are spaced longitudinally

  nally and supported in this spaced position, an anterior or inferior roller projecting below the jaws of the tension clamp which is generally supported between

the support rollers.

  The present invention also relates to an assembly comprising a chain and roller clamps and a rail and a junction device so

  that lubrication is not essential while ensuring

  providing continuous support for rolling the rollers.

  Another subject of the invention is a train in which the sliding support of the tension clamp is

  transformed into a rolling movement, avoiding a friction

  slip and allow for greater vi-

  with less energy consumption and better

  their wear characteristics as well as a better quality of the product. The invention further relates to a stable support for a tension clamp which is supported to perform

  constant rolling movement with minimal friction

  wrong, so as to ensure a continuous and stable action

  supporting and drawing on a band tightened by said clamp.

  Although the textile fabrics are not stretched in the direction of increasing their lateral dimension, a

  Wave stretching is important for textiles, but the

  rabies is particularly important when considering

  widening or stretching in the lateral dimension

  given to the band to produce pel-

  plastic filler and the like. In the opera-

  In textile applications, stretching is usually done to simply maintain the lateral dimension against a tendency to shrink under the effect of heat.

  imposed by a zone or similar means.

  The present invention also aims a junction for connecting rails which are arranged end to end for easy adjustment junction in which a curvilinear interface is made to allow to rotate the rails by maintaining a constant spacing and allowing to a lower roller always crossing the gap while rotating continuously, since the curvilinear junction extends diagonally across the respective rails and the base plate disposed butt

at the end.

  Another object of the invention is to use the curvilinear interface to connect the rails by allowing a small angular adjustment, as well as to the junctions which

  require a more pronounced angular

  a multi-junction structure according to the present invention, wherein one or more intermediate rail sections are used to reduce the gap between

the vertical wings.

  A train having rail junctions for more stable roll clamps has a base plate having a curvilinear connection with a next rail section, thereby establishing a minimum diagonal-oriented constant gap across the butt-disposed members. end-to-end to rotate the rail section around the center of a segment of a plate

  basic connection so that it can always be

  of the interval by a roller which turns continuously

  is lying. The gap may be oriented at any generally diagonal angle that allows crossing, but an angle of about 300, as illustrated, has been satisfactory. Since the raceway of the lower roller and the junction base plate form

  at their interface part of an arc, the roller passes regularly

  first and smoothly from one to the other. Thanks to

  regular and without the lower roller that allows

  the new junction structure, it is also possible to

  to achieve an improved roller clamp in which a horizontal bracket is integral with the jaws below which a lower or anterior roller is supported for

  turn on a horizontal flange extending towards the ex-

  interior, which is aligned, as indicated above, with the base plate of the junction, which console extends between opposed wings and vertically spaced to carry two pairs of rollers each of which has two rollers

  spaced vertically on studs or vertical shafts

  cages subject to the console, so as to place the rollers outside while ensuring the necessary connections

  for the trainset train to be driven through

  console by means of the usual gear transmission or similar device. One or more intermediate pieces of scrap can be incorporated at the junction to reduce the gap between the vertical flanges which

  are illustrated as being connected by intermediate

  complementary to the junction of the respective wings of the rails so as to ensure its crossing by

  main support rollers or anti-tilt.

  The invention will be described in more detail in

  drawings annexed by way of examples which are in no way

  in which: FIG. 1 is a diagrammatic plan view illustrating the introduction and intermediate zones of a train where a film is intended to be transported along the adjacent sections of the rails of the train through a heating zone; ;

  FIG. 2 is a perspective view, in part

  pull-out portion, illustrating a junction for connecting end-to-end rail sections, and a tension clamp stabilized by the rollers, made in accordance with the present invention that can continuously roll on said rails without requiring lubrication; FIG. 3 is a large scale plan view of a junction between adjacent rails, as shown in FIG. 1, in which only one intermediate section

  is used on the base plate and between the ad-

  underlying; Figure 4 is a cross-section taken along the line 4-4 of Figure 3; Figure 5 is a section along line 5-5 of Figure 4; Figure 6 is a plan view, similar to Figure 3, illustrating an intermediate junction made according to a variant of the invention, but omitting an intermediate rail section; and Fig. 7 is a plan view illustrating a

  variant of the invention in which a number of

  tain number of intermediate rail sections to achieve

  a junction in which a relative angular adjustment

  important consideration is envisaged between the adjacent sections of rail

  cent or end-to-end, so as to establish a relative number

  small intervals instead of large intervals between

  intervals. The drawings represent a train comprising two rails each comprising transversally aligned work and return sections arranged end to end,

  and devices for adjusting their transverse spacing

  versal and their longitudinal alignment. Peel clamp

  supported by a chain has a roller lower than

  on a transverse axis and two anti-tilt support rollers B spaced longitudinally, each presenting

  a vertical axis above and below the jaws of the

  this tightening. A junction intended to connect the respective rail sections to allow a smooth and smooth passage of the clamp from one section to the other, comprises a base plate C aligned horizontally and arranged end to end with a rail supporting the roller lower so that it passes from this rail on said base plate which

  transfer it to the next section in alignment with it.

  The base plate C has a curved front end

  line establishing a curvilinear connection between the said

  than the base and the rail, this junction extending diagonally

  across the train. Thus, the anterior roller

  chit the baseplate and rails anytime as it passes from one to the other, making a movement

  steady and smooth running.

  A roller clamp is supported by the rails which have two vertically opposed vertical wings D spaced vertically and a lower part of which a horizontal wing E extends outwardly. An outwardly extending bracket supports a lower jaw extending outwardly and a swivel jaw facing the latter, said jaws being for releasably clamping a selvedge of a horizontal band. An outwardly extending part F which is integral with the console and constitutes an extension of the latter,

  has horizontal mounting flanges spaced vertically

  cradle, which extend inwardly between the vertical flanges of the rails to house the chain and fix it between them. Longitudinally spaced pairs of principals

  support rollers B are mounted on vertical axes

  a main support roller of each pair being outside a respective horizontal mounting flange

  for rolling on a respective vertical wing of a rail.

  The lower roller A is mounted on the console extending to

  the outside below the lower jaw on a transverse axis

  sal located between the vertical axes to roll on the horizontal or lower track. By examining more particularly Figure 1, it is seen that the train comprises spaced rails sections each of which consists of a working rail 10 and a return rail 11 at the input end o guiding switches 12 are intended to follow the strip of cloth as it is introduced into the train to detect

  the fabric and control the operation of the cylinders

  13 to move the rails inwards and

  outside in an independent manner and in the same

  or in opposite directions. At the entrance end,

  the jaws of the tension clamps are opened in the usual way

  to receive the tape and tighten it in order to move it

  in the train. Each of the sections of rails can be de-

  placed inwardly or outwardly relative to a transversely aligned section by means of transverse screws 14. Each of the diverging rails, which comprises a working rail 10a and a return rail 11a in the case of a train

  film tension, as illustrated by the example of

  is connected to an adjacent rail by a section similar to

  that shown in Figure 7, which includes a certain number of

  of intermediate rail sections before moving to the rails which provide the additional transport of the

  through the zone or similar compartment.

  A roller clamp supported by a chain is shown in particular in Figures 2 and 4 and comprises a lower roller A and support rollers B mounted on vertical axes. The bridging structure, intended to connect the front or bottom roller A to the anti-tilting rollers or support main Best represented as having an inwardly extending console F which has a fixed connection forming a structure of a single piece or rigid with a member 15 forming a jaw. The forming element

  a jaw has a forked upper portion 15a in the-

  what turns in 16 a movable jaw 17. An inferior part

  15b supports a bearing element 18 which constitutes with the element 15b a fixed jaw facing the tapered edge of the movable upper jaw 17. An arm 17a extends towards the top of the movable jaw 17 and is actuated by the surface-s of conventional cams (not shown) located at the ends of the train to open the movable jaws 17 and allow them to be closed in order to introduce the material band and tighten when it passes along the train and

  Io later release jaws at the end of

  part of it. A controller 19 (Figure 4) is

  by the band, as in the case of textiles in particular

  until the edge of the fabric moves outward so as to allow it to fall, and at the same time allows the pinch by the movable jaw 17 of

  to align the edge or edge of the strip.

  The lower roller A is shown as being mounted for rotation on a downwardly extending bracket 20 for supporting the roller below the jaws, said bracket being secured to the stationary jaw to bring the roller into contact with the lower raceway and the plaque

  of the respective junction as it moves from one section of

  one way to another by crossing the base plate. The console F is forked and has upper flanges 9'i and lower 21 by which are mounted pins or vertical shafts 22 spaced longitudinally which support

  the rollers B on the outside of the console, above and

  below her. The portion of the shafts 22 located between the flanges 21 can be used to fix the roller chain

  which is generally designated 23 in FIG.

  Figure 4 shows a roller 24 which is mounted on one of the studs 22 to be driven from a conventional gear (not shown) located at one end of the train. In addition to forming the connecting pins of the chain 23, the studs also form a mounting member of the roller clamp. The band W is shown in FIG. 2 as being gripped by the jaws and extending laterally in the horizontal direction towards a clip supported by a

2495 1 97

  working rail of a transversely aligned opposite section.

  The rollers and bearings used in the apparatus produced according to the invention have a suitable anti-friction material

  having a lubricating power and being able to withstand

  rather high temperatures such as those prevailing in the heat treatment zone or in the tunnel in which

  the train is used, without being degraded.

  Figures 2 and 3 show the mode of

  or transition of the lower roller A on the junction of a lower raceway E of one of the sections of

  rails connected end to end to a next section. Between the

  of the respective sections, a base plate C is placed to form a junction which is particularly

  important in the presence of a roller clamp and for

  sea sliding friction and eliminate the need to lubricate the entire track. The base plate C of

  the junction is represented as being covered with a

  of 25 phenolic material, this may also apply to

  other running surfaces. The base plate C has a curvilinear leading end as illustrated at 26, and rear sides 27 oriented obliquely inwardly at the rear end of said backing plate.

  based. The curvilinear anterior end 26 of the C-shaped plate

  me an interface with a complementary surface of the lower raceway of the adjacent stretch, which is always

  when the lower roller A passes from one of the

  to each other. The gap formed between these elements remains constant and extends substantially diagonally across

  the interface between the base plate C and the next section.

  The adjacent section has end-to-end surfaces which are complementary to the obliquely oriented sides 27

  inside and is suitably attached anyway

  read (not shown) relative to the base plate C. In FIG. 4, the return rail is illustrated at 11 opposite the working portion 10 which is shown as now

the roller clamp.

  The sections of rails have opposite wings

  D (see Figure 4) which are maintained vertically at

2495 197

  distance from each other. The lower horizontal wing E

  rail (Figures 2 and 3) is generally extended towards the

  TER AL. The base plate C is suitably secured to an intermediate rail section as represented by countersunk screws 26a. The vertically spaced wings D are subject to a horizontal bridging element 27a and

  are fixed appropriately to the latter by screws 28a.

  The bridging element 27a is supported by green elements

  ticals 28 that rise above the lower

  bearing E to which they are suitably connected. The the-

  bridging is preferably fixed to the vertical elements

  28 by screws 29 with embedded head. A lower bridging element supporting the vertical supports 28 is illustrated

  30. Figure 3 shows the curvili-

  26 of the base plate C of the junction, as well as the convergent posterior edge 27 intended to be connected to a rail section 10, as described above. An interval is formed between the curvilinear anterior surface 26 of the base plate C and has a complementary surface 10b of the lower track E and, as described herein, it can be kept constant and at a minimum value. The gap formed between these elements is exaggerated in the drawing for illustrative purposes, but it is understood that the interval can be minimal by allowing a pivot adjustment of the rail sections around the respective central studs 31. These studs 31 are mounted

  in a connecting segment of the lower plate which pre-

  - feels an oblong opening, as indicated at 32, for

  allow transverse adjustment of the position of the stud.

  A connecting pin 33 is also mounted in the connecting segment of the lower plate (see FIGS. 3 and 5).

  to connect the latter to a connecting element 34 of the section

  adjacent. Element 34 can be connected to the section of

  rails by bolts 35. Another connecting bolt is

  presented in 36 to articulate the 32a link segment

  from the bottom plate to the base plate C (Figure 5).

  FIG. 3 shows that an interval 37 allows a movement

  articulation relative to the connecting segment 32a

  from the bottom plate. The lateral wings of the section in-

  it intermediate are aligned on adjacent sections. Wings

  have nested elements 38 and 38a (Figures 3 and 5).

  In FIGS. 3 and 5, the anti-tilt rollers Bainsi that the lower or front roller are shown in position on a junction to illustrate the fact that a seam is constantly maintained by the junctions along the

  vertical wings that contain the nested elements

  with the curvilinear interface between the

  curvilinear top 26 of the base plate, as well as the

  between the posterior end of said base plate which. is supported by converging sides and surfaces

  complementary to the adjacent rail section.

  Figure 4 illustrates the connecting element 32a

  from the bottom plate that supports the central stud 31 to-

  The phenolic portion of the base plate is illustrated at 25 and the steel base is designated 25a. A roller 40 is mounted on the projecting lower end of the central pin 31 and is housed in the throat

  transverse 41 of the usual cradle. The cradle is itself

  carried by the usual transverse screw 14 (Figure 5). The transverse groove 41 allows the necessary adjustment by means of the roller 40 to move the central pin 31 relative

in the cradle.

  Referring now more particularly to Figure 6, the latter illustrates an intermediate junction of the type in which a small adjustment of the rails it connects is necessary and no intermediate section is used. The base plate is designated C and has the curvilinear front portion 26 facing the surface

  complementary lOb of the rail shown. The opposite rail is

  lustred as being fixed relative to the converging surfaces 27 facing inwards and rearwards of the base plate C. The central stud is designated 31. The gap

  42 is perhaps more pronounced in this figure than the

  valle between the intermediate segment and the adjacent rails shown in Figure 3. The bridging elements are nested elements that extend from one wing of a rail to the next, as seen in 43. This

  element 43 corresponds to the element 38a of FIG.

  puts in the previous roller To always pass from one rail to the other

  be. It should be noted that the use of

  the effect of reducing the size of the inter-

  valle between the adjacent sections of rail in order to always favor regular

moving the roller clamp.

  Figure 7 illustrates another variant of the

  in which several sections of intermediate rails

  11 res 44, arranged in series, are separated by intervals 45.

  The base plate C forming the junction is shown

  as being curvilinear at 27 'at each of its ends.

  Intermediate sections 44 are joined by a link (not shown) in a known manner so as to allow a given movement of one of the intermediate sections in order to adjust the interval separating it from an adjacent section.

  and to make a definite adjustment to each of the

  valleys included between all the sections.

  Thus, a bearing structure is made for a tension clamp whose rollers are always maintained in stable rolling state between the junctions connecting the rail sections arranged end to end. Being

  given that a rolling contact, a lubricating

  cation is useless. Eliminating the need to read

  bridging the whole way eliminates the problems posed by the

  carbonization of the lubricant, which ensures prolonged use.

  This prevents clogging of parts that causes

  an increase in friction and consequently an irregularity

  stretching forces exerted on the belt. Thus, it avoids the production of a film or a fabric, in the case of textile production, secondary quality. The parts of the train according to the invention require little maintenance

  and their wear is reduced so as to increase their length.

  and minimize the downtime of the trainset, which

increases the production rate.

  It goes without saying that many modifications can

  can be made to the devices described and represented

  without departing from the scope of the invention.

Claims (6)

  1. Ream comprising two rails each formed transversally aligned working and return sections, arranged end to end   end and a device for adjusting the transverse spacing   and longitudinal alignment thereof, characterized in that it comprises a roller clamp carried by a chalne, having a lower roller (A) mounted on a transverse axis and support rollers (B) mounted on a vertical axis;   a junction connecting the sections of rails   to allow a smooth transition without   strokes of the clamp from one rail section to the other, said junction comprising: a base plate (C) aligned horizontally with a member of a rail (10) supporting the lower roller   (A) to receive the latter from the rail (10) and the   on the next section aligned with it; and a curvilinear connection between the base plate (C) and the rail member (10) extending diagonally   across them, so that the lower roller   (A) cross the base plate (C) and pass over the rail element at all times while moving from one to   the other by a continuous and regular rolling.   Ream according to claim 1, characterized   in that the base plate (C) has an anterior end   curvilinear upper (26) and inwardly converging inwardly extending sides (27), said rails facing the convergent side (27) having a complementary convergent end portion; and   said rails facing the anterior end   upper curvilinear (26) having a complementary end   (lob) and pivotable about said forward end   curvilinear (26) to maintain a substantially   constant between said ends.   3. Rake according to claim 1, characterized in that it comprises an intermediate rail section between the longitudinally aligned sections, a connection between the intermediate section and the base plate (C) and between the longitudinally aligned rail sections and said base plate (C).   Ream according to claim 3, characterized   in that it comprises several sections of intermediate rails   diaries (44), successively arranged and articulated to each other, and in that said base plate (C) extends under all the intermediate sections (44) to support the lower rollers (A) so that they can always   crossing the intervals between the inter- intermediaries.   5. Rake according to claim 4, characterized in that it comprises a junction having a connection   pivoting for a next rail around a curved interface   viligne delimiting a substantially constant interval   can be crossed by the lower roller (A).   Ream according to claim 5, characterized   in that it includes overlapping or im-   bricks (38, 38a) of vertical butt flanges (D) in the junction, said overlapping portions being   be crossed by the roller (B) of the support member.