DE2036232B2 - FOUNDRY MOLDING MACHINE - Google Patents

Description

and compression position of the molding box reached Ben ^ f ^^^^^ · ^D * ηΓΕ

and that on its downward movement through Drosse- 18 and ^ J ^ Shubkolan goes through the Le

development in the outflow of the working medium di-s separation of the supply for the V ρ _pressure piston through the pipe

Model and shape controls, and with a large tung 38, ^ J ^ f ^ _{ür ^ ₆ downward movement through

Cylinder for the pressing work, the large cylinder 5 being 39 and cüejem «,

on the upward movement from the smaller cylinder the Leituni; 4ü. _{d Mascbme} is as follows: is taken away. Another advantageous noticeably The ^? * S _a movement _mnerhalb the Mamal is that the separation of mold and all ^ izontelen «^ _ereinander disposed model train the downward movement machine of the movement, the SCH m approximately gleichzetig supply drive by issuing the Fonnkastens take place on «levels of full ν. This takes place on a stationary transport track. When employing ^ J ^^ ^end _omSie ti retraction relate extension of the machine with the machine table angeord- horizontal Bee uη ^ _{Rouen path s ub} he neter vibrating device is a _{Ahr en geformmens erforderüch that occur ^ Modellplatteι _From characterized a support of the framework can that the Maschin nüscb -7 ^ ^^ k _{Fonn aste} 8 ns retaining devices on the circumference of the machine comparable x ₅ ^th - ^^^ 7 in the middle of the machine and divides the lower yoke of the frame in the height of the on the R ° "^ ^b jj ⁿ ' _{mhcn filling} vessel 11 on the vibrating position in horizontal and vertical direction ^ .. ^^ - ^^ i ^ support the machine frame above the empty form. Roller conveyor 9 in a _{part (12j} 8, 11) your" ? an example embodiment of the invention is box 8. Once * _have *, receives the; represented "the following figures. ao ri * üge Ρ ° «ηοη er" § j. _{z Linderkolben} -E, nheit Fig. 1 shows a vertical section through the pre-stroke piston J4 «n PP _u ^ _sic h here

FitT shows a view of the machine from a

F ^ - ^ en section through the shaking nrich-, £ ϊ Z ^ d ^^ of 37, <* eres tunÄ shark ^ devices. . ^GC ^ T ^ t ^^ ^ During the upward movement

IT, ri s. 1 and 2 is the machine frame with 1, the ncnüsch 27 ^ rtra ^ ⁿ · ■ _{t the} machine table 27 upper cross member with 2, the support surface for these parts J ^ rmmmt ^. ^^ _ΗοΛ _

First read Presshaupt with 3 and two lower cross members the model P ^la « ^e * _{8 denoted to the} model limit 4. The double-row roller conveyor for the 30 ^t f \ ^r _t ^s ₁ f ™ _i ^m _ie f _s ¹ w _e nn the empty box 8 the model plate transport consists of the hegen- outside pla te 12 has 11 ^ g ^ ■ _{SSE lifted}

the parts 5 and the full frame 13 located in the machine

1 eilstück 6. Another through the Masch.ne is located s ^Lh ^ _e ^ _{without this} sen but to bcrendc two-row roller conveyor 7 carries the form under ^αβ " ^δ8 ° * ^ ιϊ _βη 34 thus has its end box 8. Another double-row roller conveyor 9 carries ₃₅ stir. the Vorhubkoloe _{36 he mt} _ the Prefihaupt 10 and the Sandfüllgefäß 11. A position "sufficient wob" he ^ _n fe _space ^ _{positive displacement te} pattern plate is indicated at 12. A filling frame ß ^^ Ä ^d J _{ie Le} has flown itung40. 13 is guided movably in bearings 15 vertical loading on rods 14 by Arbeitsm.ttel dj ^ ^ _{n press stroke.} A double-cylinder-piston unit is attached to the Prfßkcjben jetz _{the FüUen of} 16 is the upper yoke 17. Its piston- 40 of its ends e ^ ntterη. _I ^& _{eU inner} rod 18 is fastened with the bolt 19 in the upper transverse empty molding box 8, in g ^ ^ ^ traverse 2. Position carried by the upper yoke 17 in 11 g ^ 1, ^a _{43 with the} drive hanger rods 20 are vertically movable in bearings open to the Jalou «cxe scl ^ ^^ ^ ^^ _hrs _ 21 and connected by a lower yoke 22. 44. Bc. ^M _; ^dSth , ⁱⁿ J ⁿ ₃ ^m J _ie ^K _drives 43 operated. This Das'obere yoke 17, the Gehängestangen 20 and ₄₅ hung. # «^ F ^ ^ 53 form in abutment with entspreumcre yoke 22 is thus a rigid, at the ma- ^{b" n} _n ⁿ _n ^g ^ _p ^ -_ ο Α _{β η} at the lower yoke. This creel 1-run frame. the lower yoke ^ * J is ₁ ° ^e £ jS "supported nd vertically and supports the machine table 27. When the machine with f" prevented ^ "" J "™" ^ , while gle.ch is equipped with a vibrator, the output corresponds to " ⁿ .g ^cw ° ' ^te ' ^ 3"? 21 are relieved. In this

is reached via the control edge 31 and the openings 32 from the dei ^ ^ine " _{u cr} , the

The holding device for the Ruttier m Fi g. 3 ¹ J ^^^, ^ for the large cylinder 36, its

, matures on projections 48 of the lower yoke 22 on lei. ung 39 ^ D ™ U ™ «, ^ _{d per pressing surface}

and is, for example, on the crossbars 4 yeast- K- «ft the S ^ sand content of the form-

Stigt the connected with the machine gesture reads 60 46 below Vei <"cm g" ^ ^ _Qbere

are. It consists of a frame 49 which the Us ^{cl s Z} g; _ä ^ _{stan n 20} , lower yoke 22, Ma-

In h ι g. Z is cue nancv> jiin-iiiiiii ₆ > ·· ^ ~~ "_."

draws. the pressing forces remain.

The double cylinder 16 in Fi g. 1 contains the before after completion of the pressing is carried out by EnI-

reciprocating piston 34 with piston rod 35 and a large liquid line 39 and pressure feed into the

Line 40 causes a controlled downward movement of the cylinder 37 and all vertically movable parts. As soon as the piston rod 35 touches the large cylinder 36, i.e. after passing through the pressing stroke, the Vorhubkolben 34 takes over the guidance of the downward movement. A choke 47 will only effective during the downward movement, from a position shortly before the flask 8 is put on on its roller conveyor 7 until shortly thereafter (sinking the model out of the mold), then the machine performs the rest of the downward movement to the starting position (Fig. 1) at normal speed. After running through this work cycle, the next cycle begins immediately.

The pressing surface 46 of the press head 10 can be flat, profiled or in a known manner by a plurality are formed by punches, each of which is supported by a piston against a working medium and wherein the individual work equipment rooms can be connected to one another, so that Uniform pressing and compaction of the molding sand over the entire surface of the sand in the box 8 results.

The machine completes a work cycle in a short time with an up and down movement of the double cylinder 16 Time. It is simply built and the movement and press drive is easily accessible. The pressing forces are not passed through the machine frame and the cross members, so that these parts are lighter and will be cheaper than before. The machine only requires a very shallow foundation depth, which means foundation costs be saved.

For this purpose i sheet of drawings

Claims (5)

1 2 roller track pieces provided, the first for the moving claims: movement of the molding box, the second for moving the sand container for filling or the press head 1. Single station molding machine for foundries - for pressing. The model plate remains during purposes with above arranged, stationary, 5 of all operations at the same altitude, while vertically movable motion drive and with the molding box, the sand vessel and the press head by means of this must be moved up and down by the entire movement stroke. The big cy- and lowerable hanger, marked Under for the upper double runway section, must be used for through a connection of the suspension rods (20) the up and down movement of the sand vessel two full with a lower yoke (22) to a rigid, pass through on io strokes. After switching between Machine frame (1) guided frame (17, 20, sand vessel and press head must have these cylinders 22) and using it as a press drive, two full strokes are passed through for the one the machine table (27) in the frame closing operation of pressing the mold. For is attached and in a manner known per se for the rapid process of mold production is the Compaction of the molding material by pressing against 15 double strokes of the upper runway section the press head (10) preventing a horizontally movable. Main press-filling vessel unit (10, 11) movable is. Forming machine became known, the movement of which 2. Molding machine according to claim 1, characterized in drives in an upper and a lower part characterized in that the movement drive (16) 20 are divided. So that is in the fundamentals a double cylinder piston unit consists of a part that is difficult to access and takes up a part with a pre-stroke cylinder (34) smaller through-certain foundation depth, apart from the fact that the knife, which results in cumbersome cable routing during the upward movement in its subdivision upper end position has the filling and compression point. In one of the German interpretative documents development of the molding box and the multi-station molding downward movement known from its 25 1 253 416 By throttling in the drainage machine, an overhead, stationary, working equipment was separated from the model and vertically movable motion drive by means of a Shape controls, and Gefür formed with a large cylinder (36) by a cross-beam and tie rods the pressing work, with the large cylinder hanging with the centering and Aufder located below Upward movement of the smaller cylinder 30 pieces for base plates of form packages is taken. tied together. 3. Molding machine according to claim 1 or 2, finally the German patent 484 593 shows characterized in that the separation of a molding machine in which an underlying press mold and model with slowed down cylinder not only the compression work but also the movement of the movement drive by setting down 35 place the molding box on the model plate as well as the of the molding box (8) on a stationary roll forming. track (7) takes place. The invention aims to further develop the 4. Molding machine according to one of the claims known single-station molding machines under Aus-1 up to 3 with vibrating use of the known constructions in the machine table, characterized in that 40 ncnd advantages. Holding devices (55) on the circumference of the machine This object of the invention is achieved by Machine distributed the lower yoke (22) of the frame that in the molding machine described above (17, 20, 22) at the level of the vibration position hori- mii motion drive and by means of this around the zontally and vertically against the machine frame- entire movement stroke can be raised and lowered the (1) support. 45 hang this hanger by connecting the 5. Molding machine according to claim 4, characterized by a hanger rod with a lower yoke to one characterized in that the holding devices (55) consist of rigid frames guided on the machine frame a swing (52) exist on which the formed and the same used as a press drive Power drive (50) engages and is from a tilting device, the machine table being levered in the frame (53) is strengthened with horizontal and vertical bracing and in a manner known per se for the support surface, in the swing (52) rotatably seal the molding material by pressing it against the is stored. Press head of a horizontally movable press head-filling vessel unit is vertically movable. Compared to the prior art, the invented 55 proper machine has the following advantages: It has a faster mode of operation, because only a few movements are necessary. By including the The invention relates to a one-station molding pressing forces in the tie rods can the machine tool for foundry purposes with a frame arranged at the top are designed to be lighter than before. As a result m, stationary, vertically movable movement 6c of the simple design, the machine can be relatively Chop and with it to make the entire movement cheap. Avoiding a Lingshub movement can be raised and lowered. drive in the foundation reduces the necessary With a foundation depth according to the German Offenlegungsschrift. The one motion drive, arranged above the machine, which became known in 978 with machine above, is easily accessible,
A n-order, stationary press drive and hori- 65 Advantageously, the movement drive consists of a dntal movable press head with a coupling-on double cylinder piston unit with a pre-stroke handle, there are two separate cylinders with a smaller diameter, the upper one, which is vertically movable when the machine is opened End position the filling