FR2744434A1 - DEVICE FOR TRANSFERRING WORKPIECES OR FOR WORKPIECE SUPPORT IN A TRANSPORTATION SYSTEM - Google Patents

Abstract

Device for transferring or supporting parts in a transport installation, characterized in that a transfer belt (19) extends substantially over the entire width of the transport path (31) as seen in the direction of transport of the transfer belt, and is driven by a drive means (21) which extends over at least the width of the transfer belt (19) and its diameter which is smaller than the length of the transport path (31 ) of the transfer belt (19).

Description

State of the art.

  The present invention relates to a device for transferring parts or supporting parts of a railroad track.

  transport composed of two juxtaposed transport lines, pa-

  stacked, on another transport path comprising two transport lines, juxtaposed, parallel, having at least one endless transfer band, guided over a deflection means, this band forming between the two transfer lines of transportation route, transportation route, and a

  drive means for the transfer belt and a device

  lifting frame for lifting the conveyor path of the transfer belt from a rest position below the support plane of the conveyor path in a working position located above this support plane According to the document DE- 30 12 355 C2, there is known a device for transferring parts or for supporting parts which transfers them from a first transport path composed of two

  parallel transfer lines on a second transfer path

  port arranged transversely. The transfer device includes

  takes two transfer belts distant from each other, which are each driven by a drive wheel; the drive wheels are driven by a motor connected by a transmission to a drive axle common to both

drive wheels.

  The realization of two parallel transfer bands

  the distant ones, which form a transport path in the area

  an upper cover plate, leads to a provision

  tif of complicated construction. The transfer device can certainly be placed and mounted from below between two parallel transport lines of a transport path; however

  this assembly is very long. In addition, simply changing or replacing

  placement of the transfer device is very complicated. In or-

  tre, the realization and training of two paths

  transport require complicated construction,

long cation.

Advantages of the invention.

  The object of the present invention is to remedy these

  disadvantages and for this purpose concerns a device of the type

  finish above, characterized in that a transfer belt which extends over practically the entire width of the transport path seen in the direction of transport of the transfer belt, and which is driven by a drive means which s extends over at least the width of the transfer belt and its diameter is smaller than the length of the transport path

of the transfer tape.

  The advantage of this device is that it can be mounted freely from above in the interval between two lines.

  0lo genes of transport, parallel to a transport path. That

  considerably shortens the assembly time and in particular

  linking this allows a considerable saving in the realization of a mounting installation. In addition the replacement is done

  simply and quickly. The simplicity of assembly by the

  sus facilitates maintenance work on the transfer device

  fert. The transfer tape which practically extends over

  the entire width of the transfer device or which extends is

  substantially across the width of the transportation line of a

  transport path of a transfer device, offers

  in addition to the advantage of considerably reducing the number of parts

  these. The double realization, known according to the state of the art

  for two parallel transfer belts can thus be

  picks up a transfer tape; thanks to the production of the drive means, components are also saved. That

  results in an advantageous embodiment of the transfer device

  fert allowing for example to remove the realization of a cover plate with two slots for introducing the path

  for the transfer belt.

  According to other advantageous characteristics of the invention: the drive means (21) is a tubular motor or a drum motor,

  - in the area of the transport path (31), the transport strip

  fert (19) is guided by a transport table (51) which

  carries sliding surfaces (52) delimiting the transport path (31) and which are inclined downward, - the transport path (31) of the transfer belt (19) is formed by two return cylinders (24, 26) distant from each other and between which there is at least one profile of

  support (27, 28) preferably having sliding elements

  ment (29) facing the interior side (23) of the transfer belt (19), - the drive means (21) is fixed by a support (41) preferably a stirrup relative to the horizontal zone of the path transport (31) liftable, - the drive means (21) is mounted by support elements (61, 62) relative to the horizontal zone of the transport path (31) liftable, and preferably the support elements (61, 62) are removably attached to the support profiles (27, 28), - a belt tensioning device (46) fitted to the stirrup (41) or the support elements (61, 62), - the side outside of the transfer belt (19), with respect to the workpiece support (14), has a coating capable of sliding and on the inside (23) of the transfer belt (19), there is provided a coating with strong grip, - a driving belt is provided on the drive means (21), this belt being able to be connected to another m drive means of a transfer device or element

transport.

Drawings.

  Examples of embodiment of the invention are re-

  shown in the drawings and will be described below in detail.

  more detailed. Thus: - Figure 1 is a top view of the module of a manufacturing line equipped with two transfer devices according to the invention, - Figure 2 is a schematic side view of a transfer device, - Figure 3 is a schematic front view of the transfer device of FIG. 2, FIG. 4 is a schematic front view of an alternative embodiment of the transfer device according to FIG. 2,

  - Figure 5 is a schematic side view of another va-

  laughing realization compared to figure 2.

  Description of the exemplary embodiments.

  Figure 1 shows a detail of a trans-

  port of a continuous production line, comprising a main transport path 11 whose direction of circulation is given by arrow A, with for the introduction and extraction of workpiece carriers 14 or parts, a track

  introduction 12 and an extraction route 13. The main path

  cipal 11, the introduction path 12 and the extraction path 13 are produced by double-band conveyors composed of transport lines 16, 17; 16 ', 17'; 16 '', 17 '' spaced from each other. To introduce the workpiece carriers 14 or the workpieces in the direction of arrow B from the introduction path 12 into the main transfer path 11, there is a transfer device 18 provided between the parallel transport lines 16 ', 17'. Similarly to extract the workpiece supports 14 or workpieces in the direction of arrow C, there is another transfer device 18 between the transport lines 16 '', 17 '' from the extraction path 13. The main transport path 11 can be at a lower level than the introduction path 12 and the extraction path 13 so that the transfer of the workpiece carrier 14 from the main path 11 to the extraction path 13 or from the introduction path 12 to the main transport path 11 is

  possible by the transfer device 18.

  The transfer device 18 according to the invention consists of a transfer belt 19 driven by a drive means 21. The transfer belt 19 is an endless belt. To drive the transfer belt 19, a drive means 21, preferably a tubular motor or a drum or barrel motor, is used. The latter has a curved or conical envelope surface towards the two ends, and which bears against the interior side 23 of the transfer belt 19 and is directly driven. The inner side 23 of the

  transfer belt 19 preferably has an of-

  frant a high adhesion to effectively transmit

  drive forces to the transfer belt 19.

  In the upper zone of the transfer device 18 opposite the drive means 21, the transfer belt 19 is guided horizontally by means of two return rollers

  24, 26. A support profile 27, 28 is provided between the wheels.

  return waters 24, 26; the roller cylinder 29 is provided in this profile. Return cylinders 24, 26 are carried by

  support elements 30 which receive them free to rotate.

  The support elements 30 can be provided on the surfaces

  sides of the support profiles 27, 28. The return cylinders

  see 24, 26 are preferably made in one piece. The horizontal zone between the return cylinders 24, 26 serves as a support or transfer path 31 for the support of parts

14 to transport.

  As shown in the top view of FIG. 1, the transfer device 18 according to the invention comprises a transfer band 19 extending mainly over the entire width of the main transport path 11. The production of a transfer band 19 which advantageously adapts in width to the different applications, makes it possible to make the connection with the tubular motor or drum motor as a means

  simply by a few components

  sants to realize the transfer device 18; it is freely placed between the top of the transport lines

16 ', 17'; 16 '', 17 ''.

  The transfer device 18 comprises a plate

  fixing 32 receiving a lifting device 33 with a

  double acting tone and a piston rod 34 acting in the

  vertical direction. The upper end of the rod

  ton 34 is connected to a plate 36 which rises and falls according to the command of the piston. This plate removably receives

  the support profiles 27, 28 via a link

  its screwed. In a groove in the support profile 27, 28, or

  green up, house the roller cylinders

  29. Alternatively, other sliding elements may be provided.

  is lying. The plate 36 is furthermore integrally connected to the guide rods 37, 38 movably guided vertically in a housing 35 receiving the lifting device 33. The guide rods 37, 38 pass through the fixing plate 32 and are held in place. using a caliper screw 41. The drum motor 21

is carried by the stirrup 41.

  This embodiment makes it possible to maintain the tension of the transfer belt independently of the washing and lowering movement of the transfer device 18. The stirrup 41 includes a horizontal spacer 42 connected to the guide rods

  37, 38. Supports 43, 44 are provided vertically with respect to

  port to the spacer 42 for carrying the drum motor 21. These supports 43, 44 further comprise a belt tensioning device 46 making it possible to adjust the necessary tension of the transfer belt preventing slipping between the drum motor 21 and the band transfer 19. In addition, the tensioning device

  band 46 can be put in a relaxed position to allow

  to simply and quickly remove the transfer tape

  19, endless transfer device 18.

  The drum motor 21 has double grooves

  47, 48 at its left edge and at its right edge. The lateral limits

  on the one hand serve to guide the transfer belt 19.

  On the other hand, these grooves 47, 48 receive other drive belts which allows for example to drive with a drum motor 21 two transfer devices 18 placed one behind the other as shown in the figure 1. In addition,

  in the intervals like for example between the line of trans-

  port 17 'of the introduction path 12 and the transport line 16' 'of the extraction path 13, elements can be provided

  transfer wheels driven with the drive belt of the mo-

  drum drum 21. This further allows by the connection according to the invention between tubular motors or drum motors

  to save energy as well as an engine.

  FIG. 4 shows an alternative embodiment of a transfer device 18 receiving the drum motor 21. At the

  place of the caliper 41 represented in FIG. 3, there are elements

  support elements 61, 62 connected by a screw or profi

  support strips 27, 28. The fastening elements 61, 62 carry the drum motor 21; a belt tensioning device 46 is

  also provided in the lower part of the support elements

  port 61, 62 for adjusting the tension of the transfer belt. The support elements 61, 62 may have in their median zone, a cutout 65 through which the

  horizontal fixing plate 32. Alternatively, one can also

  ment provide slots in the fixing plate 32 allows

  both the passage of the support elements 61, 62. The support elements 61, 62 advantageously made in the form of parts

  in folded sheet, allow to receive and mount advantageously-

the drum motor 21.

  FIG. 5 shows an alternative embodiment of the

  transport path 31 of the transfer device 18. The pro-

  support yarns 27, 28 carry a transport table 51 in the form of folded sheet metal parts. The horizontal area of the path

  transport 51 continues with a sliding surface 52 turn-

  born downwards, allowing an unobstructed circulation of the transfer band 19 and an unobstructed transfer of the support

  of parts 14. This sliding surface 52 constitutes an al-

  ternative with return rollers 24, 26 rotating. The table

  transport 51 consists of a simple piece of matrix sheet

  bent and folded; this table can be fixed by screw or

  clamping, removable on the support profiles 27, 28.

  The transfer device 18 is introduced by the

  high in the case of a double belt conveyor between the

  transport genes 16 ', 17'; 16 '', 17 '' so that the hori-

  zontale which forms the transfer path 31 is directed transversely to the direction of the strips of the transport lines 16 ', 17'; 16 '', 17 '' of the introduction path 12 and the extraction path 13. The fixing is done using the

  screws 66 applied to the fixing plate 32. The piston

  pneumatic control of the lifting device 33 moves the

  transfer device 18 in three positions

defined.

  The transfer device 18 according to the invention operates as follows: In the low position, the high point of the transfer device 18 and a stop 67 are located below the lowest point of the workpiece support 14. This position is reached by controlling the piston so that it passes into its lowest position. Such a position is for example shown in Figures 3 and 4 in the partial left view. In this case, the transfer device 18 according to the invention does not influence

  not the part holder path 14.

  In an intermediate position, the lifting device 33 is without pressure and a spring 68 provided between the fixing plate 32 and the plate 36 lifts the plate 36 up to

  that its stop 67 acts as a stop or as a separate element

  stand for the workpiece support 14. The workpiece support 14 is held on the insertion path 12 but is no longer

transported transversely.

  The transfer device 18 is driven in its high position to evacuate the workpiece support 14. For this,

  the double-acting piston of the lifting device 33 is controlled

  pneumatically dice to pass into its upper end position until the piston rod 34 or the guide rods 37, 38 are limited in their movement by an upper end stop. The workpiece support 14 is then completely supported in the horizontal zone of the transport path 31 and is moved by the transport belt 18, transversely to the introduction path 12 and to the extraction path 13 on the main path of transport 11; the

  transfer device 18 from extraction path 13 is also

  in a higher position to transfer the support

  of parts 14 on the main transfer belt 11.

  During an extraction operation of a main transport path 11, the transfer device 18 of the introduction path and the extraction path 12, 13 is in

  its high position. Between the 17 'transport path and the

  min main transport 11 there is provided at least one stop 71 located in a high blocking position preventing further transport of the workpiece carrier 14. After the workpiece carrier 14 has been retained on the horizontal zone of the transport path 21 in a transfer position by the stop 71, the transfer device 18 is lowered so that the workpiece support rests on the transport lines 16 '', 17 '' of the extraction path 13. The transfer device 18

  is lowered even further in its low position so that the sup-

  parts port 14 can be evacuated from the extraction path 13. The transfer device 18 according to the invention offers a large number of possibilities of use in

  flexible transport systems or assembly systems, and which in particular in the production of assembly installations considerably reduce the assembly time by virtue of the possibility of simple and unobstructed installation from above.

Claims (8)

R E V E N D I C A T IONS   1) Device for transferring parts or supporting parts (14) from a transport path (11, 12) composed of two transport lines (16, 17; 16 ', 17') juxtaposed, parallel, on another transport path (13; 11) comprising two transport lines (16 '', 17 ''; 16, 17), juxtaposed, parallel, having at least one transfer band (19), endless, guided over a return means (24, 26, 52), this strip forming between the two transfer lines (16 ', 17'; 16 '', 17 '') from the transport track (12, 13), a transport path (31),   as well as a drive means (21) for the conveyor belt   fert (19) and a lifting device (33) for lifting the che-   min conveyor (31) of the transfer belt (19) of a   rest position below the support plane of the trans-   carrier (12, 13) in a working position located above this support plane, characterized by a transfer band (19) which extends practically over the entire width of the transport path (31) seen in the direction of transport of the transfer belt (11), and which is driven by a drive means (21) which extends over at least the width of the transfer belt (19) and its diameter is smaller than the length of the conveyor path (31) transfer (19).   2) Device according to claim 1, characterized in that   the drive means (21) is a tubular motor or a motor drum drum.   3) Device according to any one of claims 1 and   2, characterized in that in the area of the transport path (31), the transfer belt (19) is guided by a transport table (51) which has   sliding surfaces (52) delimiting the transit path   port (31) and which are inclined downwards. 1!   4) Device according to any one of claims 1 or 2, characterized in that   the transport path (31) of the transfer belt (19) is formed by two return cylinders (24, 26) distant from each other and between which there is at least one support profile   port (27, 28) preferably having sliding elements (29) facing the interior side (23) of the transfer band (19).    ) Device according to any one of the preceding claims.   teeth, characterized in that the drive means (21) is fixed by a support (41) of   preferably a stirrup relative to the horizontal zone of the lifting transport path (31).   6) Device according to any one of claims 1 to 4, characterized in that   the drive means (21) is mounted by support elements (61, 62) relative to the horizontal region of the liftable transport path (31), and preferably the support elements (61, 62 ) are removably attached to the support profiles (27, 28) .25   7) Device according to any one of claims 5 or   6, characterized by a belt tensioning device (46) fitted to the stirrup (41) or the support elements (61, 62).   8) Device according to any one of the preceding claims.   teeth, characterized in that the outer side of the transfer belt (19), relative to the workpiece support (14), has a coating capable of sliding and on the inner side (23) of the transfer belt   (19), a coating with strong adhesion is provided.   9) Device according to any one of claims 1 and   2, characterized in that a drive belt is provided on the drive means (21), this belt being able to be connected to another drive means of a transfer device or of the transport element.