DE1761012C - Bag clamp for heavyweight bag filling machines - Google Patents

Description

1 2

The invention is based on a known sack pivot point of this abutment section as clamp for heavy-weight bag filling machines with also the articulation point of the clamping jaw on the Widar

a frame-mounted filling opening for the goods, a bearing section, while the line of action of the

to this adjoining filler neck to transfer other means of movement between the articulation axis

strip the open end of the bag and at least two 5 of the associated abutment section and the

is the articulation point of the associated clamping jaw that cooperates with abutment sections.

Clamping jaws that are opposite to the abutment In this embodiment of the sack clamp can

sections movable, but with the latter together the two abutment sections and clamping jaws

au ·; an approximately vertical alignment with the one optionally pivot up to the horizontal and

Filling opening located filling position in an inclined io at the same time merge in a wedge shape. There-

Aufstreifstellung are pivoted. by it becomes possible to lie in the same amount; n-

They are for the sake of relief or for the complete sack when manually opening with one hand gen avoidance of manual labor bag clamps of the type mentioned with only a small opening on the abutment become known, in which the sections to slide. When swiveling back the 15 abutment sections each horizontally overhead from the side sack on a stack with its opening end on a spreading device position in the filling position, the empty sack is sealed off is striped off the jaws and kinked and pulled forward. The back end of the associated abutment sections and the sack can, however, remain on the shelf, from the mentioned open position to the filling position is pivotable. 30 of the already filled and discarded sack

With this known bag clamps, the clamps are required to be fully utilized. Only the one

Baking and abutment sections on a swivel-flowing material needs the lower end of the new

arm arranged in such a way that the clamping jaws through an empty sack that has been opened onto the vertical, hanging

bring hydraulic drive member from a middle position lowing position.

against the fixed abutment sections

be moved away in order to spread the sack and the sack in the open position initially in one

to clamp. After viinkleurmen the sack part of one of the abutments and one of the

is then detected via another Siydrauüsches drive member clamping jaws and during the

the the clamping jaws and counter bearing sections tra- pivoting movement of the abutment and clamping jaws

low swivel arm swiveled into the filling position. 30 fully expanded and at the same time under the filling

The known arrangement thus requires a truncation to be brought about. The abutment and clamping cut sequence of movements for spreading and baking can be designed as short lever arms-pinching the sack as well as for the following det, so that there is only a small overall height of the transfer of the sack into the filling position. This results in a new sack clamp. When the swivel arm is transferred to the filling 35 of the described embodiment of the sack clamp through position and back, the filled sack can be transferred to large inertia forces, since the free fall is transferred to a device for further conveying the clamping jaws, the abutment sections and that, since it is only icii is to be brought out of the swivel hydraulic drive element for actuating the area of the short lever arms, clamping jaws are arranged on the swivel arm. so that this unhindered in the open position and furthermore, the sequence of movements of the known 40 can be moved back again.
Device through the large pivoting path of the A particularly simple and functionally reliable on-arm determined on an arc of a circle, whereby it arises for construction if, according to a preferred out-of-sack change, it is necessary that the previously filled guide form of the sack clamp as a common sack from the movement path of the Swivel arm movement means for the abutment sections must be brought out with. Due to the pivoting path called pressure medium thrust in front of the articulated clamping jaws, the filled piston engine must practically be provided. It recommends the sack by its entire height down from which the clamping jaws are led away as a two-armed lever from the filling opening. to form on one arm each of the pushing

Üie known arrangement therefore requires relatively piston engine attacks.

long cycle times and because of the large inertia forces 50 increased operational reliability, especially when

a stable structure. The bags are opened in the open position

The invention has for its object to be achieved if one ensures that the closing pressure

Sack clamp of the type mentioned at the outset, at least for the one facing the open position

zubildcn that a movement * - and work flow in the clamping jaw only when the filling position is reached

short because of the clamping jaws and abutment 55 is released. In a preferred embodiment dei

Sections achieved and thereby much shorter invention is provided for this purpose that it

Sack changing times in the case of a lightweight construction are reached by the swivel path facing the open position

will. th abutment section a swiveling movement

To solve this problem, the initially limited in the filling position is fixed to the frame

Shouted Saekklemmc designed so that the 60 stroke is arranged. This achieves that

Abutment section c each to the horizontal frame- the actual closing force of said clamp

Fixed axes are pivotable and that also en to the jaw with the associated abutment section

Abutment sections clamping jaws are articulated, then becomes effective when the abutment section

which in turn places itself against the stop fixed to the frame by attacking from the outside and di

movement means are movable, with the effect »- 65 clamping jaw against the corresponding abutmenti

line of the means of movement, which the clamping jaw presses with full force,

is arranged, which on the in the open position obe- In the inventively designed Sacl

ren abutment is hinged, below both the clamp is the maximum spreading distance of the wide

storage sections in the filling position through the clear arms of the clamping jaws 6.7 to limit

Sack width limited, so that one is independent of interaction. _inwl .; w n " _s Widcrlaaer-

deviations from the standard width of the sacks. For pivoting the jewuls au W. «er ag

Always open to the full opening cross-section, section and clamping jaw, etc. ·

under the filling opening of the bag filling machine 5 th ^ f ^^^^ Z ^ t »

uS'the seal between the inserted and U ™ W * tet «^^ ™ £ ™ J ^ ™ *

filling opening and the moving parts of the filling ^ ^de «8 ^ee ^ ^nete ^ ^u _k ^h ^

Nozzle to ensure in each layer can beisp.elswe.se expedient electrical means b ^et £ S ^ ⁿ

moderately the filler neck one to the filler 10 In the example shownel those ^ - Dr ^ n Uta

opening connectable filler hose made of push-piston motors 10 and 11 "■ <■ £" "to u.

have collapsible material, the bottom of which the Sackklemmc between the m Fi.J ^

End up in the area between the two wiping positions and the one in F ig. 4 g «* g £ ⁿ . _d

storage sections is enough. Move the free end of the hose back and forth ™ bitten * \ ™ ^ ^a £ ° X ^ l

is thus with the movable abutment _{sections, 5} also in time, in Abhang.gfc t ^

between the filling position and the open position direction or the position ^ W ^ f ^ ™ _elu

moved back and forth. When opening the sack and 3 the clamping jaws ft 7 from the ™ ^fe "^%

if this also increases with certainty aas- in the closed position and _ur ngek, «to ₍ move,

Opened end of the hose, which is when the iimcnmme grip for this purpose

Filling in the vertical position of the new open * ° piston engines 10 and 11 nicni

the drawn sack up to the full opening, sections 2 and 3 but on

o ^w 6. .......... · .. , · ■ _ j_ r ^ ... ti ι on nnH iihfrtraeen the SlI

3 drunkest ^ n the

Establishment is shown below on the basis of the diagram

Table drawings of two exemplary embodiments »s location points of the jaws at dew W dtrlaf

... ι ··. From Hf> r heschnebenen anorunung ■■ -

"SÄ, own a Mh ^ de, ^ l F ^ die , **. » - ** Ä;

new sack clamp with associated actuation single motors 10 and 11 strive to de ™ ^cn

direction for manual Aufstreifung of the bag, with Aufstreife "development jni holding steeped e _s it ** ■" · "

F i (I the device in de, open position, 3 ° are gtacl> zeitt | * « ^K iTS ^B Sirmiü» sam-

FSl ² Un ¹ T ^Imp " ^{dCS Z} » * ^kSCh ™ " ^ke " ^{S in diC} SaSS'SSiSiS ^^ Ä? ^ »;

^F "f ₆ 4 n ^ rfüHposition shows; pnglich cherish and * e service» pe ^ J e, η η

"I% ³ Tf ^ l ^{EinZdheil d} " ^{EinTiChtUn8 n} " ^Ch » Sfe "eTH ^ nTule ^ diiU ^ JJen-f, | cr ,, ₈ er

* ϊΓ;% \ l ¹ ^ n En, », mean another ahschnitie ^^^^ SSTÄÜi

> ΉΪ && αΖΆ. .,!,., ng and Sngsipal, at the S ^ f ^ ng ^. Pick up

F i g. Figure 7 shows in the open position;

direction according to FIGS. 5 and 7 filling well used on the abutment sections z, J ais autn uu. Hose. the table 14 is supported and in the stripped-on In Figs. 1 to 4, a specific embodiment remains. The operator now solves the form shown in a special configuration. 45 actuation of the pressure medium push piston motor 10, In Fig. 1 the new sack clamp is in the open 11 off, the pressure medium push piston motor 10 being shown in the grazing position. The sack clamp comprises two initially endeavors to retract the abutment section 2 into abutment sections 2 and 3, which are fixed to the frame and the filling position. Since the power of the allcle pivot axes 4 and 5 are arranged on a frame-mounted pressure medium thrust piston motor 10 only via the part 15. The part 15 can act on a 5 ° clamping jaw 6 on the opposing section 2, which is fixed to the filling opening 20 according to FIG. The abutment clamping jaw facing away from the Aufstreifstation, which is pivoted by jaw 6 clockwise until a table 14 is formed, fixing the sack edge against section 2 is essentially a straight pivoting the abutment section 2 meets. Only then does the pivoting movement of the abutment section begin to be poor and much higher than the other 55. Abutment section mounted on the bracket 15. When the abutment section 3 moves, the sack is simultaneously opened wider as an angle lever, as shown in FIG. 4 and can be pivoted at a lower point. 2 is indicated. The stored begins at the same time. Pressure medium-Schxibkolbenmotor 11 the abutment cr-to the two abutment ^{sections are in the form 6o} section 3 to move to the right, initially two-armed lever clamping jaws 6 and 7 each around the jaw 7 loosely mounted against the abutment section 3 ge-pivot axes 8 and 9. The pivoting is set, whereupon it takes its pivoting movement upwards. The loosely clamped sack ensures that in the closed position the sack clamps on the one hand that the sack edge bakes reliably 6,7 on the abutment sections 2 and 3 * S under the spreading effect of the retreating abutments, while the sack sections 2 and 3 3 opens, evenly, in the open position corresponding stops 2 α and so that it essentially automatically assumes the desired 3 a at the abutment sections with the other position.

The opening process continues with the pivoting movement of the abutment sections 2 and 3 from the open position into the filling position according to FIG. 4 continued. Upon reaching the filling position 1 according to FIG. 4, the abutment section 3 strikes a stationary stop 13, which interrupts the further movement of this section. This also creates the Movement force of the push-button piston motor 11 acts as a closing force on the clamping jaw 7, to be arranged so that the operator is sure to put their hand outside the closing area of the Must have terminals.

About a safe filling of the goods into the sack S and a tight seal between the sack and the filler neck To obtain IS, a filling hose 12 can advantageously be provided, which is shown in FIGS. 5 to 8 is shown in detail. This hose is at the filling opening 20. z. B. with a

so that now the edge of the sack between the opposing clamping device 21 is fastened in an easily detachable manner and protrudes bearing section 3 and the clamping jaw 7 also firmly clamped from this opening downwards to far into the clamp will. For the other abutment area between abutment sections 2 and 3. Section 2 is not intended to be a stationary stop, which means that the lower end of the hose 12 is closed that while limiting the force of the pressure medium force, the movements of the abutment sections 2 Thrust piston motor 10 to follow through this abutment- t $ and 3, so that it is ensured that the section 2 an elastic force on the edge of the tube 12 together with the abutment section Sackcs can be exercised, whereby this always th 2 and 3 protrudes when the sack is slipped into the sack regardless of any diameter tolerances in the interior.

the fully open position is brought. At the same time to open and close the abutment with this opening force also the necessary * o sections 2 and 3 between the filling position and the The filling hose enables the clamping force via the clamping jaw 6 to be placed on the sack edge exercised. 12 expediently designed so that it is attached to the

When pivoting out of the open position H, it has sections which can be folded into sides, as shown in FIG. 8 the filling position 1 according to FIG. 4, the empty sack remains in the form of a section through the arrangement largely supported on the table 14 and as long as the section line CC of FIG. 7 reproduced is thereby bent relatively sharply, so that is a. As a result, the tube can be folded flat together underneath, if the abutment sections 2 and 3 sack is not hindered by the empty sack, lie close to one another. If the abutment sections are spread when the filled sack from the discharge position in the filling position, the hose becomes a downstream station, for. B. a bag closing device 30 at the latest by the incoming goods in the furthest device. is further promoted. possible open position transferred, the in F i g. 6 as

~ Section along the section line BF of FIG. 5 is shown. Otherwise, the parts correspond to the embodiment according to FIGS. 5 to 8 the parts described from the example according to FIGS. 1 to 4.

In Fig. 3 - corresponding to the arrow A in F i g. 2 - the clamping jaw 7 with its pivot axis 9 together with the abutment section 3 is shown in a top view.

In the position according to FIG. 4, the filling process z. B. automatically triggered depending on the reaching of the filling position. The filling process moves the sack into the hanging position shown in FIG. 4 is indicated by dashed lines, to be transferred. As soon as the sack is full, the pressure medium thrust piston motors 10 and 11 are reversed, the clamping jaws moving first again before the abutment sections 2 and 3 can take up their pivoting movement in the direction of the open position. This opens the clamping device and the filled sack can fall down. Only when the clamping jaws 6.7 are fully open and their rear arms come to rest against the corresponding stops 2 α and 3 ο on the abutment sections 2,3 does the pivoting movement continue in the direction of the open position according to FIG. 1 a. As soon as the device has reached the position according to FIG. 1, the opening process can be started again.

An increase in safety for the operator results from the fact that the operator the sack does not need to be held tight after it has been placed on the abutment elements 2, 3, since the honzontal lying sack is supported on the abutment sections and the table 14, as well as in that the sack clamp facing on the opening station is only loaded with full closing pressure when the Device the filling position according to F i g. 4 reached. It is possible in a particularly advantageous manner, known, Switches that can be operated with both hands at the same time, far from the elements of the bag clamp

Claims (5)

Patent claims: 1. Sack clamp for heavyweight sack filling machines with a frame-mounted filling opening for the goods, an adjoining filler neck to slip over the open end of the bag and at least two clamping jaws which cooperate with abutment sections and which are movable with respect to the abutment sections, but with the latter together from an approximately vertical alignment with the filling opening lying filling position are pivotably mounted in an inclined open position, d a by characterized in that the abutment sections (2, 3) are each fixed to the frame horizontally Axes (4, 5) are pivotable and also clamp to the abutment sections (2, 3) baking (6.7) are hinged, which in turn durct externally attacking movement means (10, ίί are movable, the line of action of the Be wegungsmitteis, which is assigned to the jaw, which is in the open position (II) upper part Abutment is hinged, below both de pivot point of this abutment section al also the point of articulation of the clamping jaw lies on the abutment section, while the action line of the other means of movement between de articulation axis of the associated abutment section tes and the articulation point of the Zugchörigci clamping jaw. 2. Sack clamp according to claim 1, characterized ge indicates that as a common means of movement pressure medium piston engines (10,11) are provided. 3. Saekklemme according to claim 2, characterized in that the clamping jaws (6,7) as two-armed levers are formed, on one arm of which the thrust piston motor (10, 11) attacks. 4. Sack clamp nseh one or more of the preceding claims, characterized to draws that in the pivoting path of the Open position (H) facing abutment section (3) a swivel movement in the Filling position (t) limiting frame-fixed stop (13) is assigned. 5. Sack clamp after one or more dci preceding claims, characterized in that the filler neck (IS) one to the Infill opening connectable filling tube (12) made of collapsible material has its lower end extending into the area between the abutment sections (2,3) is enough. 1 sheet of drawings 109 65;