US2866566A - Press feeders - Google Patents

Press feeders Download PDF

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Publication number
US2866566A
US2866566A US701773A US70177357A US2866566A US 2866566 A US2866566 A US 2866566A US 701773 A US701773 A US 701773A US 70177357 A US70177357 A US 70177357A US 2866566 A US2866566 A US 2866566A
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US
United States
Prior art keywords
press
rails
plates
moulds
blanks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US701773A
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English (en)
Inventor
Peras Lucien
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renault SAS
Regie Nationale des Usines Renault
Original Assignee
Renault SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renault SAS filed Critical Renault SAS
Application granted granted Critical
Publication of US2866566A publication Critical patent/US2866566A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/02—Presses characterised by a particular arrangement of the pressing members having several platens arranged one above the other
    • B30B7/023—Feeding or discharging means

Definitions

  • This invention relates to presses and more particularly to those of the type utilized for vulcanising rubber articles, especially rubber mats; these presses generally comprise several intervals, each adapted to receive a mould; these moulds are loaded separately and then pressed simultaneously during the vulcanisation of the rubber mixture therein.
  • the different moulds (which are generally from 7 to in number) are loaded separately by hand by the operators of the machines, and secured on the press follower or extracted from the press before loading.
  • This invention consists broadly in providing a press feeder having its movements controlled in adequate time relationship with the press and comprising servo-controlled guided plates having the same relative spacing as the apertures between the moulds and the press followers, said plates being loaded by hand at the end of the apparatus which is remotest from the press during the time period in which a previously introduced batch of blanks are vulcanised in the press, these plates being subsequently brought to a waiting station at the opposite end and in overhanging relationship to their guides before being introduced into the press by a combined movement of the apparatus.
  • servo-members are provided for the purpose of retaining the rubber blanks on the moulds and permitting their release when the movable plates are retracted, whereafter the apparatus is brought back to its initial loading position by effecting a combined movement during which the guides are disengaged from the press.
  • Figure 1 is an elevational view of the apparatus which is taken at right angles to its axis of translation
  • Figure 2 is a plane view from above of the apparatus shown in Fig. 1;
  • Figure 3 is a detail view showing the mounting of the movable-plate guide rails and -of the cylinders for actuating these plates, the section being taken upon the line IH-III of Fig. 2;
  • Figure 4 is a detail view showing one portion of the movable-plate guide rails, the section being taken upon the line IVlV of Fig. 2;
  • Figure 5 is a similar view showing another portion of the movable-plate guide rails, with a section taken upon the line VV of Fig. 2, and
  • Figure 6 is a detail view showing the members provided for retaining the rubber blanks on the moulds, the section being taken upon the line VI-VI of Fig. 2.
  • the press feeder comprises a metal frame structure 1 consisting mainly of two rigid vertical frames 2, 3 disposed side by side and adequately braced to each other.
  • the purpose of these frames 2, 3 is to support, by means of vertically adjustable brackets or straps 4, guide rails 5 engaged by movable plates 6, the movable plate assembly consisting in turn of suitably spaced plates registering with the corresponding levels of the apertures provided between the moulds 7 and followers 8 of the press when the latter is in its opened or waiting position, that is, before loading, as illustrated diagrammatically in Fig. 1.
  • the complete apparatus is displaceable bodily in relation to the press, and the metal frame structure 1 constitutes to this end a carriage having at its lower portion a plurality of rollers 9 rolling on rails 10 secured on the ground.
  • the movements of the press feeder is controlled by means of an electromotor 11 solid with the carriage 1 and adapted to drive through a suitable reducing gear 12 and a chain drive 13 the shaft 14 on which are wedged a pair of toothed wheels 15 meshing with racks 16 solid with the rails 10.
  • each plate 6 is controlled with the assistance of a pneumatic, double-acting cylinder 19 the body of which is clamped and supported by collars 20 secured along one of the rails (seeFig. 3), the movable member being secured on a lug 21 solid with the plate (see Fig. 4).
  • a pneumatic, double-acting cylinder 19 the body of which is clamped and supported by collars 20 secured along one of the rails (seeFig. 3), the movable member being secured on a lug 21 solid with the plate (see Fig. 4).
  • these plates may travel from the rear portion of the apparatus where the rubber blanks are introduced therein, to the front portion of the apparatus which consists of the overhanging portions of the rails 5 which project from the frames 2 and 3 and are adapted to be introduced in the intervals formed between the moulds and the press follower during the loading period.
  • these plates 6 are formed at their front ends with notches or cut-out portions 22 through which blank-retaining members bear on each blank on the rear end of the mould 7 of the press (see Fig. 6).
  • these blank-retaining members consist of pneumatically-actuated fingers 23 provided with rubber pads 24 and supported by a cross-member 25 consisting of paired angle sections secured at the end of each set of rails 5, as shown.
  • the press feeder according to this invention and to the embodiment specifically described hereabove is operated as follows.
  • the apparatus When the apparatus is in its waiting position in front of the press with the movable plates in their retracted or rearmost'position in the frames 2,
  • the operator firstly loads the'se plates by beginning with the top plate and suitably placing the blanks the position of which on the plates may be determined in any adequate manner, provided that they cover the notches 22.
  • the operator may successively push all the plates towards the front of the apparatus as they are loaded and when all the plates are filled he actuates adequate valve means (not shown) allowing compressed air'to fiow into the cylinders 19 so that all the movable plates 6 will be placed in the same horizontal position on the front, overhanging portion of the apparatus, the front portions of the blanks which cover the corresponding notches 22 underlying the fingers 23.
  • the press is opened and the treated articles extracted therefrom.
  • the operator starts the electromotor 11 to cause the apparatus to move bodily towards the press, the travel of the assembly being so determined that the front ends of the rails 5 which are thus inserted between themoulds 7 and press plates or followers 8 will be stopped in the position illustrated in Fig. 6.
  • the operator When the apparatus has completed its travel, the operator actuates the pneumatically-controlled fingers 23 so that their pads 24 press the leading end or edge 26 of the blanks against the mould surface 7 (see Fig. 6). Then, the movable plates 6 are retracted by introducing compressed air into all the cylinders 19, thus leaving simultaneously the blanks on the moulds. After having raised the fingers 23 the operator causes the complete feeder to move back to its loading position by actuating the electromotor 11 in the reverse direction, so that the assembly will resume its initial position in which fresh blanks are loaded; meanwhile, the press is reclosed to treat the blanks carried by the moulds.
  • a press feeder adapted to feed blanks to be vulcanised to a press of the multi-stage type comprising alternate molds and followers, particularly for molding rubber mats, said apparatus comprising supporting rails secured on the floor, a pair of spaced vertical frames braced to each other to constitute a braced structure carried by said rails through the medium of rollers, rack extending along and securedto said ground rails, an electromotor carried by said frame structure, a reducing gear, a transmission and a toothed wheel between said electromotor and said rack for permitting the movement of said frame structure on said rails toward and away from said press, brackets disposed on said vertical frames and carrying at the relative spacing of the press followers a corresponding number of pairs of rails parallel to said ground rails, one portion of said last-mentioned rails projecting in overhanging relationship from the from frame of said frame structure towards said press, each pair of rails supporting a movable plate provided with rollers engaging said rails and controlled by a pneumatic cylinder mounted at the rear of one rail of the apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
US701773A 1957-01-25 1957-12-10 Press feeders Expired - Lifetime US2866566A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1165691T 1957-01-25

Publications (1)

Publication Number Publication Date
US2866566A true US2866566A (en) 1958-12-30

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ID=9654626

Family Applications (1)

Application Number Title Priority Date Filing Date
US701773A Expired - Lifetime US2866566A (en) 1957-01-25 1957-12-10 Press feeders

Country Status (4)

Country Link
US (1) US2866566A (xx)
BE (1) BE563239A (xx)
FR (1) FR1165691A (xx)
GB (1) GB874474A (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1167011B (de) * 1960-07-27 1964-04-02 Eugen Siempelkamp Anlage mit nebeneinander angeordneten Etagenpressen fuer die Vulkanisation von in geteilten Formen befindlichem Vulkanisationsgut
US5062763A (en) * 1989-08-09 1991-11-05 Daverio Ag Stacker, especially for an offset plate transporter
US20070176326A1 (en) * 2006-02-01 2007-08-02 Fa-Shen Chen Method for filling polymer blanks into molds and an apparatus thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1254453A (fr) * 1960-01-11 1961-02-24 Renault Appareil déchargeur de presse
JP6391111B2 (ja) * 2014-07-08 2018-09-19 オリイメック株式会社 型交換台、多層加工システム、及び型交換方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728468A (en) * 1951-06-15 1955-12-27 Siempelkamp Eugen Device for feeding and discharging presses

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2728468A (en) * 1951-06-15 1955-12-27 Siempelkamp Eugen Device for feeding and discharging presses

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1167011B (de) * 1960-07-27 1964-04-02 Eugen Siempelkamp Anlage mit nebeneinander angeordneten Etagenpressen fuer die Vulkanisation von in geteilten Formen befindlichem Vulkanisationsgut
US5062763A (en) * 1989-08-09 1991-11-05 Daverio Ag Stacker, especially for an offset plate transporter
US20070176326A1 (en) * 2006-02-01 2007-08-02 Fa-Shen Chen Method for filling polymer blanks into molds and an apparatus thereof

Also Published As

Publication number Publication date
BE563239A (xx)
FR1165691A (fr) 1958-10-28
GB874474A (en) 1961-08-10

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