FR2689439A1 - Machine for surface facing parallel to the bottom, the upper part of a clay terrine before cooking, to enable it to receive, after cooking, an industrial lidding. - Google Patents

Abstract

The invention relates to a machine enabling the upper part of an earthenware terrine to be surfaced parallel to the bottom before cooking in order to enable it to receive an industrial lid after cooking. The terrines, held by suction cups, are placed on trays A placed on a motorized conveyor F at variable speed and arrive in a tunnel D. They undergo two successive machining operations (a blank, a finish) carried out by abrasion or by very large cutting tools. speed. Two variable speed grinding spindles W W 'ensure machining. An X X 'suction system inside the tunnel prevents soiling.

Description

I

DESCRIPTION

  The present invention provides a machine for parallel surface surfacing of the upper portion of an earthen terrine prior to firing, in order to allow it to receive, after firing, an industrial lidding process. terrines is traditionally left in the rough state of manufacture, the product before cooking is very fragile machining is not undertaken. The removal of the earth by drying is important, causes tensions and causes deformations of up to 10 milimeters. This invention overcomes this disadvantage and reduces the

  flatness at 0.2 0.4 mm maximum. Currently, sealing is not practiced on terrines earth, the deformation thereof does not allow.15 This invention can claim to provide the opportunity to seal the terrine terracotta industrially.

  Figure 1 plate 1/4 An operator located at station B has the terrines on trays A placed on a motorized conveyor F, they are held by suction cups and arrive in the tunnel D. The speed of the conveyor is set by a motorcycle gearbox which drives a toothed pulley E. On the belt J are fixed the trays A. Advancing in the tunnel the terrines undergo two successive machining operations25 1 roughing, 1 finishing, the machining is carried out by abrasion or by cutting tools rotating at very high speed ; two grinding spindles with variable speed W W ensure machining. The parts thus transformed return to the station B and are removed from the conveyor F. The conveyor F stops when a tray A comes to the station B and leaves only after order of the operator. During the period of charging and unloading period, the parts arranged on the trays A are not in the machining stage. The X X 'holes allow to manage a suction that will prevent soiling. Figure 2 Plandhe 2/4 Z represents the sucker that allows terrines or dishes to be held on a plate A. R indicates a treated zone that will fit in a slide Y Y the roller S II allows the smooth running of the correct oentrage produced on the conveyor, 1 'square axis K mobile, makes it possible to fix the toothed belt, to maintain the plate and to establish the pitch of operation MHI allow the maintenance and adjustment of the spring NG cylinder shouldered and threaded at its ends allows to receive the suction cup Z and the air hose. Figure 3 Planch 3/4 This figure details the grooves Q in the pulleys E motor and free C,

  which allow the indexing of the trays and the pitch of operation.

  Figure 4 Plate 4/4 This figure shows the location of parts V during the period when the operator loads and unloads at the workstation, downtime,

  P tools are not in the machining period.

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FIGURE 1 BOARD 1/4

  W W 'Machining spindles D Machining tunnel X X' Suction connection holes C Timing pulley E Timing pulley motor J Timing belt F Conveyor B Operator station with machine controls

FIGURE 2 BOARD 2/4

  A R parts support tray Treated element S Position and traverse roller K Square indexing and fixing shaft on the toothed belt M Spring cage H Spring tension adjustment locking nut I Spring tension adjusting screw N Spring G Cylinder Suction cup and air hose Z Suction cup Y Slide model

FIGURE 3 BOARD 3/4

  J Timing belt C Timing pulley E Timing pulley motor Q Index groove

FIGURE 4 BOARD 4/4

  P Machining spindles V Parts F Conveyor

REVEDICATIONS

  1) Machine for terracing earthen terraces before cooking comprising a device characterized for a covoyer F coiporting trays A. 2) Machine according to claim 1 characterized by trays A which serve as support terrines, each tray A is equipped with a sucker Z which allows the clamping of the terrine on the plate A, the sucker fcotionne by assembling parts MHING Z. 3) Machine according to claim 1 and 2 characterized by a conveyor F equipped with trays A, conveyor motorized by toothed pulleys CE

  having grooves Q which establish the operating step.

  4) 10 Machine according to claim 3 characterized in that the pulleys CE receive a toothed belt on which are fixed the trays A at a distance from each other, corregporxant at the operating pitch, this link belt J trays A is provided by the K. axis

  ) Machine according to claims 3 and 4 characterized by 1 advance trays

  A in the tunnel D. 6) Machine according to claim 5 characterized in that the tunnel D is equipped with two machining spindles W W 'separated from each other by a distance

  corresponding to the step of fcrztionrement.

  7) Machine according to claim 6 characterized by machining spindles W W 'which in the machining period cause dust, which are discharged by a suction system roped to orifioes X X', the terrines are therefore

specific to the exit of the tunnel.

  8) Machine according to any one of the preceding claims characterized

  in that the terrines after machining are removed from the conveyor at the station

  B, that the terrines to be machined are put in circuit at the same station.

  9) Machine according to claim 8 characterized by a work station B, post equipped with the main omnine of the machine, or the conveyor J automatically stops the trays A and leaves only on the order of the operator.

  Machine according to claims 8 and 9 characterized by trays A which

  during stopping (loading, unloading) are not inside the tunnel at the height of the tools P.