Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H19/00—Changing the web roll
  • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H19/00—Changing the web roll
  • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
  • B65H19/26—Cutting-off the web running to the wound web roll
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H19/00—Changing the web roll
  • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
  • B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/40—Type of handling process
  • B65H2301/41—Winding, unwinding
  • B65H2301/417—Handling or changing web rolls
  • B65H2301/4171—Handling web roll
  • B65H2301/41745—Handling web roll by axial movement of roll
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2301/00—Handling processes for sheets or webs
  • B65H2301/40—Type of handling process
  • B65H2301/41—Winding, unwinding
  • B65H2301/417—Handling or changing web rolls
  • B65H2301/4187—Relative movement of core or web roll in respect of mandrel
  • B65H2301/4189—Cutting
  • B65H2301/41896—Several cutting devices, e.g. located at different upstream/downstream positions of the web path
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
  • B65H2405/00—Parts for holding the handled material
  • B65H2405/40—Holders, supports for rolls
  • B65H2405/42—Supports for rolls fully removable from the handling machine
  • B65H2405/422—Trolley, cart, i.e. support movable on floor

Definitions

• the invention relates to an installation and a method for packaging a sheet of molding material on reels at the outlet of a machine for producing a sheet molding material.
• Such a material commonly known as "SMC” (Sheet Molding Coupound) is produced continuously on a machine which may be of the type known from FR-A-2 778 360 or of any other type.
• SMC St Molding Coupound
• Such a machine operates without interruption and a system for conditioning the sheet of SMC produced must be provided, this system being compatible with the speed of advance of the sheet leaving the machine.
• reels capable of receiving approximately 3.00 to 700 kg of material are used, it is possible to use a rocker system provided with two spools for supporting the reels, the material being alternately wound on each of these mandrels.
• it is necessary to provide for the use of large capacity coils these coils being unable to be handled by a rocker system, due to their weight and their bulk.
• the invention intends to respond more particularly by proposing a new installation which is compatible with the continuous operation of an SMC production machine and with the use of coils of large mass and diameter.
• the invention relates to an installation of the aforementioned type which comprises:
• a carriage consisting of a main frame and a secondary frame, provided with guide rollers the sheet and movable in translation, in the aforementioned direction, between a first position situated generally above a first location and a second position situated generally above the second location, and vice versa, the main and secondary carriages being able to slide relative to one another parallel to the above-mentioned horizontal direction.
• the use of two successive locations makes it possible to provide, for each location, support means and suitable drive means for the strip of molding material, while the carriage makes it possible to alternately bring the sheet of molding material up to each of the coils installed respectively in each of these locations.
• the bi-partite nature of the carriage of the invention makes it possible to vary its length parallel to the horizontal direction of advance of the sheet. It is thus possible to provide a compact configuration of this carriage, for example when it is not in use, and an extended position which allows it to guide the sheet of molding material over a relatively large length. It is thus possible to optimize the support conditions of the sheet at the outlet of the machine for producing molding material.
• the installation incorporates one or more of the following characteristics: -
• the carriage is equipped with a device for driving the sheet, this device being mobile, concomitantly with the implementation of means for cutting the sheet, between a position of engagement with the sheet and a clear position relative to the latter.
• this device comprises a frame supporting a motorized roller and a follower roller, these rollers being each centered on an axis generally perpendicular to the direction of advance of the sheet and surrounded by a carpet of drive, while this frame is articulated on the carriage around an axis generally perpendicular to this direction, between a first position where the carpet is in contact with the sheet and a second position where the carpet is distant from the sheet, and vice versa .
• the carriage is equipped with a cutting device mounted on a frame articulated on the carriage around an axis generally perpendicular to the direction of advance of the sheet. The cutting device can therefore be activated by pivoting its frame around its axis of articulation.
• the carriage is equipped with a terminal guiding device extending, in the configuration of use of the carriage, in the direction of a coil being filled, the guiding device being articulated on the carriage around an axis generally perpendicular to the direction of advance of the sheet.
• This guide device allows it to be retracted when the carriage is not used.
• the main and secondary frames are equipped with rollers to support the sheet in its advance movement.
• This aspect of the invention makes it possible to use an SMC production machine both to produce coils of SMC of significant weight, greater than 1000 kg, and coils of SMC of the order of 300 to 700 kg, as previously known.
• Each coil is mounted in a main chassis in which it is able to rest, by the peripheral edges of its flanges, on blocking shoes, while the main chassis is able to be placed on an auxiliary chassis equipped with rollers capable of raise the edges' above with respect to the shoes when the main chassis is placed on the auxiliary chassis.
• the use of these two chassis makes it possible to provide a default blocking of a coil inside the main chassis by the use of shoes, this blocking being eliminated when the coil and the main chassis are placed on the auxiliary chassis. , the idler mounted rollers to support the flanges of the coil with the possibility of rotation.
• the auxiliary chassis is equipped with wheels allowing it to slide in a general direction perpendicular to the direction of advance of the sheet. This transverse access makes it possible to carry out the operations of placing and removing the coils in masked time.
• the invention also relates to a packaging method which can be implemented with the installation described above and, more specifically, a method which comprises the steps consisting in using two types of coils of different diameter at the outlet of the machine, depending on the amount of material to be wound, while - when using coils of relatively smaller diameter, these are supported by a rocker arranged opposite the exit area of the machine and - when using coils relatively larger in diameter,
• a movable carriage provided with guide rollers on or against which the sheet has been previously arranged;
• the sheet is driven from the carriage to move the front edge of this sheet until contact with the spool mandrel;
• FIG. 1 is a schematic representation of the principle of an installation according to the invention in a first configuration of use
• FIG. 2 is a view similar to Figure 1 while the installation is in a second configuration of use;
• Figure 3 is a top view of the installation in the configuration of Figure 1;
• Figure 4 is a longitudinal section on a larger scale of a portion of the carriage used in the installation of Figures 1 to 3;
• FIG. 5 is a section similar to Figure 4 while the installation is in another configuration of use;
• FIG. 6 is a schematic representation of the principle of the coil drive system used in the installation
• FIG. 7 is a view, on a larger scale and in exploded view, of the elements located in a location of the installation, and
• Figure 8 is a view similar to Figures 1 and 2 in another configuration of use of the installation.
• the installation according to the invention is arranged at the outlet of a machine 1 for producing composite molding material of SMC type, in the form of a sheet 2 circulating. According to a path represented by the arrows F x in the figures .
• the machine 1 is equipped with a puppet 3 making it possible to compensate for the variations in length and speed of travel of the sheet 2.
• the sheet 2 can be wound on the mandrel 4a or 4 ′ a of coils 4 and 4 ′ supported by the arms of a rocker 5 positioned opposite the exit zone of the machine 1.
• the sheet 2 is being wound on the reel 4 while the reel 4 ' can be either loaded on the rocker 5, or discharged from it before being stored on a transport pallet 6 disposed nearby.
• This use of the machine 1 corresponds to the state of the known technique.
• the direction X-X ' is generally parallel to the path F of the strip 2 in its upper part, after it leaves the machine 1.
• a carriage 20 rests on rails 21 above the rocker 5 and the locations 15 and 15 '.
• This carriage is equipped with several rollers 22 for supporting the sheet 2 in its advance movement F ⁇ ; these rollers being mounted idly on two frames, namely a main frame 20A and a secondary frame 20B each provided with wheels 23A, respectively 23B, allowing them to slide along the rails 21, as shown by the arrow F 4 .
• the wheels 23A rest on the rails 21 while the wheels 23B, which are located at the height of the frame 20B disposed at a level lower than that of the frame 20B, rest on the lower wings of the rails 21 which have a cross section generally in the form of vs.
• An electric motor 29 drives certain wheels 23A for the movement of the carriage 20 on the rails 21.
• the motor 29 is controlled by the control unit of the machine 1.
• a jack 24 is mounted on the main frame 20A.
• the secondary frame 20B is integral with the rod 24b of the jack 24, so that the spacing e between the frames 20A and 20B can be adjusted by means of the jack 24.
• the total length L of the carriage 20 is provided sufficient for the sheet 2 to be effectively guided by forming a generally horizontal and flat sheet on the rollers 22.
• the length of the carriage 20 can be adjusted by means of the jack 24, according to the characteristics of sheet 2, these characteristics being able to vary due to its composite nature.
• the adjustment of the length of the carriage 20 also makes it possible to adjust the winding tension of the sheet 2.
• the jack 24 is retracted in order to reduce the total size of the carriage 20 parallel to the direction XX '.
• 20C the edge of the carriage 20 which extends, perpendicular to the direction XX ', opposite the machine 1.
• the carriage 20 is positioned on the rails 21 so that its edge 20C is disposed substantially above the reel 14.
• the part 2a of the sheet 2 stretched between the carriage 20 and the reel 14 extends along a plane which is slightly inclined relative to the vertical.
• the part 2a of the sheet 2 coming from the carriage 20 can therefore be easily wound on the mandrel 14a of the coil 14 suitably driven in rotation in the direction of the arrow R.
• a guide device 25 of the part 2a of the sheet 2 is constituted by a frame 251 articulated on the frame 20A around an axis Y 25 generally -perpendicular to the direction XX '.
• This frame carries, at its end opposite the Y axis 25 , two rollers 252 and 253 defining between them a slot 254 for the passage of the sheet 2.
• the frame 251 also supports a plate 255 which extends over the entire width of the carriage 20.
• the position of frame 251 around the Y axis 2S is controlled thanks to two jacks represented by their center lines 256, articulated on the frame 20A and the rod of which is integral with the frame 251.
• the frame 251 remains in the position shown in Figures 4 and 5 except when the carriage 20 is not used, as in the configuration of Figure 8, in which case the cylinders 256 are contracted to bring the rollers 252 and 253 to immediate vicinity of the frame 20A in order to reduce the size of the carriage 20.
• a cutting device 26 is articulated on the frame 20A about an axis Y 2S generally parallel to the axis Y 2S , that is to say perpendicular to the XX 'direction.
• the device 26 comprises a frame 261 supporting a rodless cylinder 262 controlling a blade 263.
• Two cylinders represented by their axis lines 266 are articulated on the chassis 20A and make it possible to control the pivoting of the frame 261 around the axis
• the device 26 is in the position of FIG. 4 where it does not interfere with the sheet 2.
• the jacks 266 are activated to bring the frame 261 into the configuration of FIG. 5 where the blade 263 is in contact with the sheet 2.
• the jack 262 moves the blade 263 along the plate 255, thereby cutting the sheet 2. It is then possible to proceed with the final winding of the sheet 2 on the reel 14.
• the carriage 20 is equipped with a device 27 for driving and blocking the sheet 2 which comprises a frame 271 articulated around a Y axis 27 on the frame 20A and whose movement is controlled by two jacks represented by their axis lines 276.
• the frame 271 supports a first roller 272 which extends parallel to the rollers 22 and to the Y axis 27 and which is motorized by to an electric motor 274.
• Frame 271 also supports a second roller 273 mounted, idle and parallel to the roller 272.
• a belt 275 formed of metal links is stretched around the rollers 272 and 273 and can be set in motion by the controlled rotation of the roller 272.
• roller 22a denotes the roller supported by the frame 20A and disposed as close as possible to the edge 20C, that is to say the roller 22 which is the last on the path of the sheet 2.
• the frame 271 Concomitantly with the movement of the frame 261, the frame 271 is moved in the direction of the frame 20A by the jacks 276, so that the mat 275 is firmly pressed against the sheet 2 bearing on the roller 22a.
• the spacing e 'of the rollers 272 and 273 is chosen so that the roller 22a can be partially engaged between the rollers 272 and 273, as shown in FIG. 5.
• the belt 275 acts as a brake on any movement sheet 2 withdrawal in the opposite direction to the arrows F ⁇ .
• the motor 274 can be blocked. This motor is fitted with a reduction gear thus increasing the value of the resisting torque, which prevents the sheet 2 from returning.
• the carriage 20 When the sheet 2 has been cut by the blade 263, the carriage 20 is moved so that its edge 20C is found substantially above the reel 14 'which has been placed in the location 15' in parallel with the winding of the sheet 2 on the reel 14. From this configuration, the motor 274 is activated so that the roller 272 is driven in the direction of the arrow F 5 in Figure 5 which has for effect, taking into account the pressure exerted by the jacks 276 and the firm support of the belt 275 on the sheet 2, to drive the sheet 2 in the direction of the arrows F x , so that its free edge which was situated previously at the level of the plate 255 progresses towards the mandrel 14 'a of the coil 14' around which the sheet 2 then begins to be wound. The coil 14 ′ is then rotated and the jacks 276 are activated to separate the belt 275 from the sheet 2.
• the coil 14 is evacuated and a new coil is put in place.
• the procedure is described above for the coil 14 and the carriage 20 is brought back above the location 15.
• the drive system 28 of the coils 14 and 14 ' is shown only in Figure 6 for clarity of the drawing. It comprises an electric motor equipped with a reduction gear 281, the output shaft of which is coupled to a plate 282 provided with two fingers 283 intended to be introduced into openings 141 provided between bars 142 in the center of each flange 143 of the coils 14 or 14 '.
• the fingers 283 When the fingers 283 have been introduced into the openings 141 and when the motor 281 is activated, the fingers come into contact with two bars 142 on which they can exert a drive torque in rotation of the coil 14 or 14 'considered.
• the system 28 is movable in the directions Y ⁇ ⁇ -Y ⁇ , Y 2 - Y ' 2 and X-X', so that it can alternately be brought into engagement with one or the other of the coils 14 or 14 '.
• Each coil 14 or 14 ' is supported by a frame 16 or 16' formed from angles welded or assembled by bolting.
• the lower crossmembers 161 of the chassis 16 are U-shaped, with thick webs giving them good dimensional stability, including when handled relatively roughly with forklifts.
• Each chassis 16 or 16 ′ defines four shoes 162 in the shape of an arc of a cylinder arranged in line with the flanges 143 of the coils 14 and the like. By default, each coil 14 rests, by each flange 143, on two shoes 162, so that, taking into account its weight and the friction forces between the edges 144 of the flanges 143 and the shoes 162, the coil 14 is immobilized in rotation about its central axis Y 14 .
• the height h x of the centers of the rollers 173 with respect to the upper face of the sleepers 171 is greater than the height h 2 of the lower part of the edge 144 of the flange 143 relative to the lower surface of the sleepers 161.
• Each auxiliary chassis 17 is equipped with wheels 174 allowing it to slide, perpendicular to the direction F x in advance of the sheet 2, on rails 7 extending in the ground of the installation in the directions Y- L -Y ⁇ and Y 2 -Y ' 2 , as shown in Figure 3.
• the operation is as follows: when it is necessary to have an empty reel 14 ′ in location 15 ′, the auxiliary chassis 17 ′ dedicated to this location is brought into a position offset with respect to the advance zone of the sheet 2, this position being represented in FIG. 3. In this position, a coil 14 'installed in a chassis 16' is placed on the chassis 17 ', which makes it possible to free the possibility of rotation of this coil around its central axis while the coil 14 'remains trapped in the chassis 16'. Then, the carriage 17 ′ is translated in the direction of the location 15 ′, as shown by the arrow F 2 .
• the dedicated carriage 17 at location 15 When it is advisable to remove a full coil from the installation, such as the coil 14, the dedicated carriage 17 at location 15, the chassis 16 and the coil 14 are brought to the position shown in dashed lines in FIG. 3 and the simple fact of lifting the chassis 16 relative to the chassis 17 makes it possible to immobilize the coil 14 in rotation. inside the chassis 16 considered.
• a system for indexing the position of the frames 17 and 17 ′ along the rails 7 can be provided by means of a finger 175 loaded elastically in the direction of the ground and capable of engaging in holes 8 provided in the ground at the level of the position of the chassis 17 and 17 ′ in each of the locations 15 and 15 ′ and in each of the loading / unloading positions of the main chassis on the auxiliary chassis.
• the invention has been shown with two coils 14 and 14 'arranged in two locations 15 and 15'. It is however applicable with three or more than three locations, the number of reels used being adapted accordingly without disturbing the operation of the production line, in particular of the machine 1.

Landscapes

• Replacement Of Web Rolls (AREA)
• Heat Treatment Of Articles (AREA)
• Manufacture Of Macromolecular Shaped Articles (AREA)
• Moulding By Coating Moulds (AREA)
• Lining Or Joining Of Plastics Or The Like (AREA)
• Shaping Of Tube Ends By Bending Or Straightening (AREA)
• Preliminary Treatment Of Fibers (AREA)
• Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
• Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Applications Claiming Priority (3)

Publications (2)

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ID=8854024

Family Applications (1)

Country Status (10)

Families Citing this family (4)

Family Cites Families (7)

• 2000
  • 2000-09-06 FR FR0011360A patent/FR2813596B1/fr not_active Expired - Fee Related
• 2001
  • 2001-09-05 EP EP01965383A patent/EP1315663B1/de not_active Expired - Lifetime
  • 2001-09-05 MX MXPA03001998A patent/MXPA03001998A/es active IP Right Grant
  • 2001-09-05 ES ES01965383T patent/ES2261462T3/es not_active Expired - Lifetime
  • 2001-09-05 PT PT01965383T patent/PT1315663E/pt unknown
  • 2001-09-05 WO PCT/FR2001/002755 patent/WO2002020385A2/fr active IP Right Grant
  • 2001-09-05 BR BR0113604-6A patent/BR0113604A/pt active Search and Examination
  • 2001-09-05 DE DE60119745T patent/DE60119745T2/de not_active Expired - Fee Related
  • 2001-09-05 AT AT01965383T patent/ATE326416T1/de not_active IP Right Cessation
  • 2001-09-05 US US10/344,513 patent/US6896218B2/en not_active Expired - Fee Related

Non-Patent Citations (1)

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