DD288815A5 - ARRANGEMENT FOR ALIGNING AND SCREWING A BOTTLE LOCK - Google Patents

Abstract

The invention relates to an arrangement for aligning and screwing a bottle closure. A screwed on the bottleneck with Auszengewinde screw cap is frictionally erfaszt by a hold-down with Aufschraubkopf, thereby suffering inevitably under the pressure in this engagement a Gewindeverkeilung, is then by changing the sense of rotation gemaesz the fixed-programmed automatic Verschrauberfunktion first left around and immediately on it screwed around right. This screwing tolerated in the high measure schraeg sitting screw caps. The screwdriver revolutions are automatically triggered at the very beginning of the bottle arrived in the Aufschraubstation and run time-programmed, so z. For example, during the screwing operation by a time programming corresponding to the thread's amount plus a safety turn. {Screw-on station; Capping; Bottleneck, Auszengewinde; screw cap; Schraubkopfreibschlusz; Schraubkopfdrehsinn; Screw cap, loosen; Screw cap, screw on; Hoof bolts, automatic; Unscrewed, timed}

Description

For this 3 pages drawings

Field of application of the invention

The invention relates to the treatment of screw caps on bottlenecks with external threads in a Aufschraubstation a Flaschenfüll- and closing. It is assumed that the previously mounted caps are placed on the bottlenecks in principle obliquely.

With such a device, bottles filled with a wide variety of liquid goods, e.g. with medicines, chemicals, fruit juices, etc. be closed.

Characteristic of the known state of the art

There are various facilities known with which one

- Fix screw caps on bottlenecks by lowering hold - down with screw - on head, grasp and align and

- After the preparation of Aufschraubbereitschaft such screw caps between the same and dsm hold-down with Aufschraubkopf bring about a clutch and then by screwing the Aufschraubkopfes in the correct direction, usually right around, screw the screw caps on bottles.

In this case, the screw caps are placed on the necks of the driving through underneath, conveyor belt bottles out of an oblique slide out usually obliquely.

As a prerequisite for a functionally reliable screwing the caps are the same not only on dam bottle shark exactly up and align, the bottle is also under the ski aub head s'abil to fix.

In addition worclon either bottle and associated screw head synchronously in a circle out, whereby zwischon both

a relative standstill ointritt to each other, or for screwing extra in a Aufoubetation angohalton.

The orientation and alignment of the caps placed on the bottlenecks on the bottle necks is done in the middle of the bottle as sinkable Downholder trained Aufschraubkopfes with a In elnor bostlmmton form trained bodonsoitlgen opening and

with special gripping organs.

The openings may be tapered conical, cylindrical lenticular or combined in both Formon. Groiforgane can jaws, circular-shaped hanging Haltokllnkon, other finger arrangements or Mombranwülste u. a. his. These Schraubkopfformen wear when fixing the Schraubkappon on don necks through

the special form of the lowered Niodorhaltor to their up and alignment bol. Then let me enumerate the enumerated

Press gripping organs either with spring force on the caps, wöbe! They use thisolbon for the purpose of the throat sanguine synthon Screw on and after which they neither pneumatically IÖ3on let or pneumatically anprosson as a gripper

and mechanically release. In the simplest case, the screw head to the cap for the purpose of coupling only angoproßt strongly and after

Screwed uncoupled. In all technical solutions, the high mechanical construction and linking costs turns out to be disadvantageous before

Everything is based on the concept of operating a feed device in total with only one drive and / or the

To align and grasp Schraubkappon very precisely. Despite this effort, it often happens that Screw cap are not screwed, but pushed off the bottleneck or destroyed because the Conditions that still allow Aufschraubfähigkeit the up-and-aligned cap, only in very tight tolerances

given are. The easiest way to do this is with elastic caps.

These can (if necessary) be forcibly pressed for the first few turns into the correct screwable Lago and they

screw it to the end. This could also be referred to as a slip-on screw-cap combination. at

However, hard plastic screw caps would lead to such an approach to their destruction. (See, inter alia, DD 64,900, 57,297;

DE 2708344, 2913768.3715935 and KS 4308707.4614078.4Θ74236).

Object of the invention

The aim of the invention is to close bottles by screw caps technical simple and very reliable.

Explanation of the essence of the invention The object of the invention is that of a Schraubkappabuteilung from the bottleneck usually at an angle

Covered caps with simple technical means gently up and align and then screw down without having to consider the Schraubkappenmaterialeigenschaften, a special Schraubkappenauf- and alignment or particular accuracy of centering and parallelization of the bottle-cap unit by fixation means desabgesenkten downholder as a screwing total.

This object is achieved according to the invention by an arrangement which functions as follows: The obliquely seated on the bottleneck screw cap (see Figure 1) is by means of a hold-down, which has been lowered and

is finally liftable again, fixed on the neck with external thread under slight pressure.

Although this gentle procedure does not lead to the destruction of a possibly brittle hard plastic cap, it does

usually due to their oblique seat to a wedging the same with the bottle outer thread in the form that

Threads of cap and bottle threads may be at least one thread apart

are oingeschnäbelt.

In the situation the cap can not be screwed on. But this wedging can be done by turning left or up In the case of "sensitive" friction until the "snap" of the threaded ends, loosen the cap easily and safely. Now the cap is sitting

ready to be screwed on the bottleneck (see Figure 2).

On the cap which can be screwed on this way, the hold-down device now becomes a screw-on head with an additional higher pressure

pressed. In the form verkuppelt is automatically closed by turning the right or downward rotation of the bottle with the screw cap closed. This process is functionally reliable, low-wear and automatically controlled and can be easily repeated as often as desired.

This is the up and aligning the screw cap at the end of the release of the wedging by the initial gentle Upward rotation supported by the first tapered, then cylindrical vertical opening shape of the Aufschraubkopfes. By form alone, however, the alignment effect does not occur without a long-term upward rotation. This surprisingly simple and reliable as well as orientation of the screw cap on the bottleneck, their

immediate automatic and reliable screwing as well as its fixation at the beginning and release at the end of the

Aufschrauborganes follow oinem lutomatic electromagnetic-mechanical control and time program (see Figure 3). Major effects of this circuit arrangement are:

- Manufacture of screwing and triggering the screwdriver by the arrival of the bottle with oblique cap in the Aufschraubstation and fixing the same by belt stop.

- Gentle lowering of the hold-down with Aufschraubkopf only by its own weight on the cap-bottle unit by automatic shutdown of its holding magneton.

- Time and thus screw head rotation programmed short left-hand rotation of the canted screw cap upwards with low friction with the screw head on hold-down.

- Automatic switching of the screwdriver motor to clockwise and screwing by means of time programming with minimum revolutions beyond the thread addition and automatic connection of a spring tensioning device for generating the coupling force required for the closure.

- Automatic release of this lifting device and Anhebon dos Niedorhaltors.

- Automatic start of the stopped conveyor belt for the purpose of the departure of the ν opened and released bottle. The Zeitbegrenzcng the Aufschraubumdrehungen just above the closing point bozwockt the Minlmlorung slipping of friction frictionally coupled Schreubkopfkappenflächen after dom FostsiUon dor screw cap on the smallest amounts to avoid Vorschloiß due to friction heat.

Auiführungsbelsplel Dio execution of the inventive arrangement will be explained based on Erfolgsondon Figuron Fig. 1: schrägaufgosetzte cap Fig. 2: aufschraubbereite cap Fig.3: Circuit diagram Fig.4: View of the automaton Fig. 5: Side view of the machine Further details can be found in the Ausführungsbeispiel below. Eino screw cap 1 has been mounted by means of olnor oblique slideway on elno passing through bottle and has

due to the operation of this device an undefined oblique logo on the bottle mouth. Fig. 1. Wn η η to the

Screw-on station can continue to bottle, then the shaft with dragline 3 (Fig. 5) the required switching angle

has dragged together, switching piece 4 - Fig. 3, Fig. 5 - operated and the automatic machine ausgeolöst.

The debouncing serving relay 5 drops off, trontent contactor β from the network, so that the tape drive 7 unrolls. At the end of this Operation attracts time relay 8, separates Rolais 9 from the network, so that the solenoid 10 drops and the hold-down with Aufschraubkopf 11 lowers only by its own weight on the cap Flascho Einheic, at the same time attracts contactor 12 and the Vorschrauberantrieb 13 granted dom lowered Aufschraubkopf 11 via a Keilriemonstufo 21 as long his left turn,

until time relay 14, which was simultaneously energized with contactor 12, is energized after a period equal to the number of times

Turns required to screw the screw cap on the bottle neck plus elno rotation required The attractive time relay 14 disconnects contactor 12 from the network and ends the left-hand rotation. Nachdom as arbitrarily tilted

eingeschnäbelte threads have been solved safely by unscrewing, depends on the pressure due to the

Net weight of the Niederhaitors with Aufschraubkopf 11 the cap surface parallel to the coupling plate 20 in Screw-on 11 from. Fig. 2. Optionally existing spherical shape of the cap surface is characterized by the elasticity of Clutch plate 20 balanced. Relay 15 is supplied via the time relays 8, 14 and contactor 12, it picks up, so that contactor 16

attracts and the Verschrauborantrieb 13 now starts with clockwise rotation. Außdom draws on contactor 16 solenoid 18 with voltage supplied and amplifies the contact pressure dos Niederhalters with Aufschraubkopf 11 on dio cap surface 1 by tensioning the spring 19, so that the required for tight closure Kupplungsrodrohmoment frictionally transferable

If the time relay 17 acting and programmed in the same way as the relay 14 is energized by the contactor falling off

16 both the screwing by stopping the Schraubkopfantriebes 13, as the tensioning of the spring 19 by dropping the

Solenoid 18 finished. The tightened time relay 17 supplies time relay 20 whose delay time the coasting of the screw head drive 13 and tins Ending the relaxation of the spring 19 ensures that when lifting dos Niederhal'ors with Aufschraubkopf 11 Koilriemenstufc

21 of the screwdriver drive 13 is brought out of the lane, so that the lifting only allowed at standstill and only beientspannte spring 19 is possible.

When time relay 20 is displayed, relays 9, so that solenoid 10 the hold-down with screw head 11 of the with Screw cap 1 closed bottle 2 lifts. The Schaltsatange 22 on holddown 11 closes the Anhebon contact piece

23, so that ebenfallsls Rolais 9 contactor 6 attracts and the tape drive 7 to dom elevating dos down holder 11 starts.

When the screwed bottle 2 is transported out of the area of action of the finger lever 3, the contact piece 14 and the switch 12 close Relays 5,8,14,15,17 and 20 are reset. As a result, the machine is switched to standby again and the Aufschraubprogramm can: re-triggered and often likes

be repeated.

Explosion-proof actuators have been used in explosion-proof versions and instead of Hoi solenoids

Preßluftbetrieberie working cylinder used.

The control cabinet is located outside the Ex zone.

Claims (1)

Arrangement for aligning and screwing on a bottle closure, which was previously placed obliquely on the neck of the bottle, consisting of hold-down with a screw-on head, the electromagnetic-mechanical switching elements switches, relays and contactors and the associated lifting magnets and electric motors and mechanical elements for transmitting the lifting and rotating movements, the switching movements, for clamping the coupling fields and the fixer, and positioning the bottle to be closed together with cap in the vertical axis with dam hold-down with Aufschraubkopf, characterized in that - The lowerable hold-down with screw head (11) is associated with a solenoid (10) by the fall after switching off by switch (4) the same on the obliquely placed screw cap (1) soft touches, whereby between the coupling plate (2Ω) and the Schraubkappenoberfläche Friction is produced, but initially a tilting of the obliquely placed screw cap due to Einschnäbeins the wrong threads is to be accepted, which is subsequently fixed, - Time relay (8), time relay (14) and contactor (12) are interconnected so that the Schraubkopfantrieb (13) turns to the left, thereby defined by the time relay (14) minimum revolutions of the screwing the screw cap in wrong threads by turning up solve and thus produce their Aufschraubboreitschaft - Contactor (12), intermediate relay (15), timing relay (17) and contactor (16) are interconnected so that the screw head drive is now driven in the right direction to turn down by means of the number of threads plus a safety turn in the time relay ( 17) defined time extent screw the screw cap on the bottle outer thread firmly, for which at the same time via contactor (16) a solenoid (18) for tensioning a clutch spring (19) is switched so that the time required for the tight closure clutch torque is frictionally transferable, - In the current path of time relay (17) via the intermediate relay (9), the solenoid (10) with Schaltstango (22) and switch (23) and the contactor (6) to the belt motor (7) a timing relay (20) is interposed so the screw head drive (13) and the clutch spring (19) for spilling and relaxing the required action time is available before lifting magnet (10) lifts the hold-down with Aufschraubkopf (11) of the screwed cap-bottle unit and then the tape drive ( 7) for bottle removal via switch (23) starts, - Bandanfieb (7), drag lever (3) and switch (4) cooperate in the form that the same by means of driving away the screw-cap bottle from the scope of the drag lever (3) and subsequent successful release of the switch (4) and the previously left relays and timing relays (5), (8), (14), (15), (17) and (20) are reset in Aufschraubbereitschaft.