DE3346051A1 - METHOD AND DEVICE FOR AUTOMATICALLY MACHINING AND STRAPING HIGHLY COMPRESSED BALES FROM WASTE MATERIALS, BY MEANS OF ONE OR MORE BINDING WIRE - Google Patents

Description

Dipl.-Ing. NORBERT W.SEEMANN patent office:

Patent and civil engineer Brehmstrasse 37

European Patent Attorney D-7320 Göppingen

Tel. 07161-71166

Telegrams: _ iq_ "Seepatent"

December 12, 1983 PG 8327 Sw Se / bs Applicant:

Hermann Schwelung
Bahnhofstrasse 115

7777 Salem 3 / Neufrach

Method and device for automatic mechanical strapping and tying of highly compressed Bales of waste materials, by means of one or more tie wires

The invention relates to a method according to the preamble of the main claim and to a device for carrying out the method.
10

The tying or strapping of highly compacted bales of waste materials is already from DE-PS 21 11 894 as well

Kralssparkasse Göppingen (BLZ 61050000) Account 474595 Postscheckkonto Stuttgart (BLZ 60010070) No. 189103-702

DE-OS 22 45 190 in approximately the same way known that the in several, parallel planes around the bale still in the press shaft wrapped wires, by means of a single; Rake-like feed member from one side of the housing through the grooves The tappet sole is brought into contact with the opposite binding wire, then by means of separate cutting devices cut through together and the free wire ends are twisted together by machine.

Due to the rectienartige wire leading part, to the movement of the latter necessary hydraulic cylinder and the allocation of the separate cutting means to the respective VerdrillstationeVts, these known Einriebtungen are not only structurally very complex and also susceptible to faults _s but the necessary for the formation of a so-equipped baler space ₅ It is very large thanks to the feed rake, which is always very wide at the side, for the binding wires and its drive cylinder »

The object of the present invention is therefore "to create a tying device that is structurally largely simplified compared to the known state of the art and also significantly reduced in its external dimensions, in conjunction with a process that is also significantly improved in terms of the work flow.

The solution to this problem in a manner according to the method and device can be found in the claims, in the Drawings largely shown schematically and in more detail below with reference to the exemplary embodiments shown there described.

In the drawings show:

1 shows the front view of a baling press according to the invention,

Fig. 2 is a plan view with a fully pressed bale,

3 likewise with the binding carried out

wires,

4 likewise in the separating and binding position,
20th

5 shows an alternative guide head design to Fig. 2 and

6 shows the cutting punch from FIG. 5 in working position. position.

From the representations in FIGS. 1 and 2, the basic structure according to the invention of the new binding device can first be seen. Here, the binding wires 4, 5 or from the side walls of the Preßschachtes 1 in the region of the drill spindles 12 !, the twisting hook 11 depending Abbindeebene E _1, E_ E ^ are designed primarily for the transfer of single and not mechanically coupled with each other, hydraulically actuated cylinder-piston units 6, 7, 7a, 8 arranged on the press shaft 1, each of the piston rods at its free end protruding from the hydraulic cylinder 6 carries a rod head 7a which, in its end position, is centered in the press piston 2 via guides 7b the arithmetic links only known so far according to the state of the art have a significantly smaller overall width B, especially when so-called telescopic cylinders with two to three times the translation are used in addition to normal cylinders »

In another special embodiment of the present invention, the free end of each rod head also has the known guide rollers FR for the tie wires 4, 5, one lying centrally between the rollers FR Cutting punch 9, whose 'tip Sp or Sp "in the feed direction VR of the piston rod 7 opposite the guide

front roller edges FRU set back by a small amount a is. In the same line of action VR lies E ,, E ", E, an anvil 10 mounted resiliently resiliently in the axial direction χ opposite the respective cutting punch 9, which in its end position moved to the block (Fig. 4) rests on a (not shown) switching element of the machine control or depresses it.

This arrangement according to the invention thus represents a very considerable one Improvement over the previously known designs, since now no separately arranged and separately controlled wire cutting device is required more, but the push-through device and the Push-through pressure at the same time result in the shear device and the shear pressure.

In this context, it is still relevant to the invention nor that the anvil 10 is in each case between a pair of twisting spindles occupied by a geared brake motor 13 with twisting hooks 11 12 arranged and is dimensioned smaller in its clear width d than the clear opening width D of the the cutting punch 9 laterally delimiting arms 8a of the wire guide head. A functionally important measurement this can be seen roughly when this anvil 10 is about so much smaller in its diameter d

as the opening width D of the wire guide arms 8a is held so that the wires Aa ₅ 5a and 4b, 5b can be pinched therebetween.

Now, in order both to have a better accessibility to the Twisting and separators for any repair or maintenance work _s or the other at all in the overall width B space during transport and installation of machinery to save _s invention still yet

IQ provided that all wire feed 6 to 8a and Schneidbzw. Twisting stations 9 are fastened to be swiveled about 13 per a common frame 15 or 16 to the outside walls la of the Preßschachtes 1 and that "brake motors instead of the individual, lying laterally to the ^'v Preßschacht 1 transmission 13 depending Abbindeebene E ,, E", E, To reduce the lateral overhang A _5, a single motor 13 'with mechanical drive coupling 14 on the twisting spindles 11 ", 12 of all binding levels E", E "5 E, common to all stations, is provided, this motor 13" above the frame 16 sits and is directed towards the press shaft 1 »

Due to the fact that the ₃ wire pusher 6, 7, 8 Sp counter in communication with the boost pressure and the particular over a distance under spring pressure of the tip

With the flexible anvil 10, which also represents the shearing device with the required shearing pressure, the device according to the invention results in the following basic working method: The binding wire or wires 4, 5 are individually and mechanically not connected to one another in each level E ,, E_, E- Feed units (cylinder 6, piston rod 7, wire guide button 8) in contact with a cutting or separating unit 9, 10. The maximum required cutting pressure, which builds up hydraulically when this separating device is in contact, then at the same time triggers the control pulse for the start of work of the twisting fingers 11, whereby the twisting fingers 11 always move to the same starting position for each work cycle by using so-called geared brake motors 13 with a low tilting moment, and on the other hand synchronization inaccuracies between the individual twisting stations I ¹ , II ¹ , III ^{1 are} compensated. The binding wires 4, 5 or their areas 4b, 5b brought together by the rod head 7a on the finished bale side as well as the areas 4a, 5a lying in the working direction R behind the plunger are clamped between the cutting punch 9 and anvil 10 or wire guide head 8 during the cutting phase at least as long held in position until an effective twisting of the free wire ends 4a, 5a and 4b, 5b has taken place. In the case of the forward-pushing operation, the opposite to the rollers FR

recessed tip Sp so that no wire kerfoung occurs, before the installation on the anvil 10 and at the same time the start of clamping have taken place »

This necessary clamping can alternatively take place in that the cutting punch 9 is provided with a main point Sp 'and two additional points Sp 1 set back laterally and in the feed direction VR, the latter Sp' in the free and tensioned wire ends 4a, 5a and 4b, 5b are wedged in after separation by the main point Sp '(FIg ₀ 5 and 6) “The following points are also important in the work or process sequence: The wire ends 4a that have become free after shearing off and are under tension , 5a and 4b, 5b clamping shear pressure is retained until the tensile forces from the twisting process pull these 4a, 5a and 4b, 5b out of the clamp. Also in the case of the multi-motor version 13, the twisting _{process is initiated via a pressure monitor for each level E ,, E "s} E_ when this pressure monitor indicates that separation has taken place? if only one common motor 13 'is used for all setting levels E, 5 E _{? s} £ _ = <. "" only when a corresponding Ausi-jert electronics within the machine control that signals the shear performed in each level, or the

Indicates that the cutting pressure has been reached or reports it to the machine control system.

Ultimately, the one described above for hydraulic drive The invention can also be used with other drive systems for wire feed, wire cutting and twisting the free ends.

List of reference numbers

1 press shaft

la foreign landings

2 plungers

2a plunger rod

2b opening column

3 finished bales

4 binding wire

4a Band area on the finished knotted bale

4b Belt area for the new bale

5a Band area on the finished knotted bale

5b belt area for the fieuen bale

6 cylinders

7 piston rod 7a rod head 7b guides

8 wire guide head 8a arms

9 cutting punches

Anvil twisting finger or twisting hook Finger holes or drill spindles Gear brake motor 13 'single motor

14 mechanical coupling on the twisting side

15 frames (feed side)

16 frames (twisted side)

17 wire pulleys

a Distance, tip of cutting punch to guide roller

A Overhang on the side of the press shaft

E., E "setting planes

R Working direction plunger

VR feed direction from pos.

Sp cutting punch tip

Sp '"(Figs. 5 and 6)

Sp, additional tips

FR leadership role

FRV guide roller leading edge

K clamping edge

d anvil diameter

D Opening width of the wire guide arms 8a

B overall width

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Claims (10)

Dipl.- Ing. NORBERT W. SEEMANN Patent Office: Patent and Civil Engineer European Patent Attorney Brehmstrasse 37 D-7320 Göppingen Tel. 07161-71166 Telegrams: "Seepatent" December 12, 19i PG 8327 Sw Se / b: Applicant: Hermann Schwelung Bahnhofstrasse 115 Salem 3 / Neufrach patent claims 1.) A method for the automatic mechanical strapping and tying of highly compressed bales of waste materials, by means of one or more binding wires, in one or more parallel planes, wherein
each level is always initially stretched one of the wire ends across the web on which the material to be compacted is moved and compressed into a bale and on both sides of this web from corresponding supply stations wire material intermittently up to Bale finishing traced, then one of the wire sides is moved transversely behind the finished bale along to the adjacent side and then mechanically Cutting through the resulting free wire ends are twisted together, marked by the combination of following one after the other in terms of time or rhythm or at least partially overlapping one another Operations: a. The tie wire or wires (4, 5) are individually and mechanically not forcibly connected to one another _{in each level (E., E? S E,)} Feed units (cylinder 6, piston rod 7, wire guide button 8) in contact with a cutting or Separation unit (9, 10) driven. b. Which is located at this separating device hydraulically building, maximum required At the same time, cutting pressure triggers the control-based impulse for the twisting fingers to start working (11) off. c. By using so-called gear brake motors (13) with a low overturning moment, on the one hand always the same starting position per work cycle the twisting finger (11) is approached and, on the other hand, synchronization inaccuracies between the individual twisting stations (I ' _s II ^!, III') are compensated. d. The binding wires (4, 5) or = those from the standard IQ gene head (7a) together on the finished ball side quantitative led regions (4b, 5b) and the areas (4a _s 5a) lying in the working direction (R) behind the plunger will by clamping between cutting punch (9) and anvil (10) or "wire guide head (8) during the Separation phase held in position at least until an effective twisting of the free wire ends (4a, 5a and 4b, 5b) has been made « 2. Device for performing the process steps according to Claim 1, marked by the combination of the following structural features; a. For the transfer of the binding wires (4, 5) from the side walls of the press shaft (1) into the area of the twisting spindles (12) or the twisting hooks (11), each setting level (E ₁ , E, E,) is individual and not mechanically linked coupled, hydraulically operated cylinder-piston units (6, 7, 7a, 8) on the press shaft (1) arranged (Fig. 1). b. Each of the piston rods (7) carries on its free end protruding from the hydraulic cylinder (6) a rod head (7a) in its end position (Fig. 4) is centered on guides (7b) in the plunger (2). c. The free end (8) of each rod head (7a) has in addition to the known guide rollers (FR) for the tie wires (4, 5), a in the middle between the rollers (FR), the cutting punch (9), the tip of which (Sp or Sp ¹ ) is set back by a small amount (a) in the feed direction (VR) of the piston rod (7) with respect to the guide roller leading edges (FRV). do Each setting level lies in the same line of action (UR) (E, 5 E ", E-,) the respective cutting punch (9) an anvil (10) supported resiliently in the axial direction (χ) opposite, the one in its end driven on block position (Fig. 4) on a (not shown ) Switching element of the machine control is applied or depressed. XO 3. Apparatus according to claim Z ₉ characterized that the anvil (10) is arranged between a pair of twisting spindles (12) fitted by a geared brake motor (13) with twisting hooks (11) in its clear width (d) is smaller ₉ than the clear opening (D) of the cutting punch (9) laterally limiting arms (8a) of the wire guide head. 20th 4. Device according to claims 2 and 3 ₉ characterized in that all wire feed (6 to 8a) and cutting or Twisting stations (9 to 13) each with a common Frame (15 or 16) are attached to the outer walls (la) of the press shaft (1) so as to be pivotable. 5. Device according to one or more of the preceding claims, characterized, that instead of the individual geared brake motors (13) lying to the side of the press shaft (1) for each binding level (E ,, E "j E,) to reduce the lateral overhang (A), a single motor (13 ') with mechanical drive coupling common to all stations (14) is provided on the twisting spindles (11, 12) of all binding planes (E ₁ , E_, E,), this motor (13 ') being seated above the frame (16) and directed towards the press shaft (1). 6. Device according to one or more of the preceding claims, characterized in that the cutting punch (9) has a main tip COPY (Sp ¹ ) and two additional points (Sp 1) set back to the side and in the feed direction (VR), the latter (Sp ') in the free and tensioned wire ends (4a, 5 and 4b, 5b) after separated by the main tip (Sp ¹ ) are wedged (Fig. % and 6). 7. Device according to one or more of the preceding claims, characterized, that the wire push-through device (6, 7, 8) in connection with the push-through pressure and the over a certain Distance under spring pressure of the tip (Sp) opposite the resiliently mounted anvil (10), at the same time the Shearing device with the required shearing pressure represent. 8. Device according to one or more of the preceding claims, characterized, that the anvil (10) in its diameter (d) is about so much smaller than the opening width (D) of the wire. COPY
BATH ORIGINAL Guide arms (8a) is held that the wires (4a, 5a and 4b, 5b) can be clamped therebetween. 9. The method according to claim 1 using the device features according to one or more of the preceding claims, characterized by the following additional steps in the workflow: a. At the same time the one that has become free after shearing off and that is under tensile stress Wire ends ('4a, 5a and 4b, 5b) clamping shear pressure remains until the Tensile forces from the twisting process pull these (4a, 5a and 4b, 5b) out of the clamp. b. The twisting process is carried out with the multi-motor version (13) via a pressure switch each Weil then initiated for each level (E ₁ , E ", E,) when this pressure monitor indicates that separation has taken place; when using only one common motor (13 ') for all setting levels (E ₁ , E ", E, ....) only if a corresponding one Evaluated electronics within the machine control, the shear performed in each level signals or the achievement of the Cutting pressure or the machine control reports » 10. The method and device according to one or more of the preceding claims _s marked by Use of non-hydraulic drive systems for wire feed, wire cutting and twisting.