FR2774082A1 - DEVICE FOR CONTROLLING AND ADJUSTING A NEEDLE FOR FOLDED PRODUCTS - Google Patents

Abstract

Device characterized in that:. connecting at least one jamming detector (22) which detects jams in one of the directions of delivery of the product referral (5), at least one jamming detector (23) which detects jams in the other direction of delivery of the product switch (5), at least one phase position detector (19) which detects the phase position of the products, a speed detector (21) which detects the speed of the mechanism main drive, and a control device (20) which predefines the type of production, to an adjustment device (24) which ensures the corresponding frequency of the cycle and the phase position relative to the product or its fixing in at least a rest position, and. a motor (6) connected to the axis of the switch (5) of the products is arranged downstream of the adjustment device (24).

Description

State of the art

  The invention relates to a device for controlling / adjusting a switch for sheets and / or

  folded pieces, in particular in a folding device on 5 rotating roller machines used to fix the direction

  tion of transport to other folding devices as well as sorting or deviating folding products in particular

jamming.

  There are known switches for products which

  after having been properly installed and fixed, do not

  Wind direct all products only on one route. In addition, switches are known which bring the sections of

  alternately with additional folding devices

  laughers stopped abruptly and at the tablecloth feeders. In or-

  tre we know switches that can be fixed as well as being able to work on one side or the other after their change. We still know switches, which

  in the event of smudging or jamming, the

  duits after a signal on another channel, to protect the constituent parts of the following folding device against

  damage from accumulated paper.

  This is how in document DD-246 524, a switch is described which can be fixed and operate on one side or the other, a switch which also works.

  as a disposal switch and which is ordered or

  dragged by a cam control. By means of toothed wheels, the cam is linked to the machine's drive mechanism cyclically. If one should only have one meaning

  transport, the operation of the com-

  camshaft operating as a drive mechanism for the

  guillage. This is achieved in a known manner by means of

  two electromagnets or also adjustment pins which can

  can be operated by hand, pins with which the

  cam lever remains permanently raised from the track

  curved for a first position of the switch and is in this way independent of the rotating cam. For a second position of the switch, place the electromagnets

  or the adjustment pins so that the axis of rotation

  tion of the cam is moved and therefore the cam lever assumes the position corresponding to the second direction of transport, also independently of the rotating cam. Thanks to the corresponding control positions of the electromagnets, two other positions are obtained, which

  wind in particular be used in the event of jamming.

  With the two electromagnets, control levers, cogwheels, cams and roller levers it is all-

  times necessary to have a relatively large number of 10 pieces and a relatively large need for space. In addition, there is not always a suitable drive mechanism at the rate for the cam near a new switch to be provided. Due to the cam control of the switch there is a rate with regard to the distribution of the products which can practically not be changed. There are however

  in print shops the desire to be able to make a deli-

  vivid copies in two streams for example during the

  massage. This forces the pace to be halved in terms of

  concerns the succession of products. This is not achieved.

  ble with a switch control mechanism that does not work

  does not operate in synchronism with the machine. An additional control mechanism to halve the speed of

  rotating the cams would further increase costs.

  The object of the present invention is therefore to provide a referral of products which can be ordered or adjusted in a variable manner, which operates according to predefined types of productions (such as by accumulation or with doubling of production), that the 'we can

  insert at the desired location, on the transport line, inde-

  during rotation speeds, linked to cadence, without

  cogwheels, toothed belts or the like

  which has a low noise level which does not

  stops only a small number of parts and only has a small footprint and which also works by saving space as a disposal switch or switch in

jamming.

  This problem is solved with the invention thanks to the fact that the switching of products is driven by at least one mechanism equipped with an electric motor controlled or regulated electronically, for example by a stepping motor, by the main mechanism. for driving the printing machine and / or the folding machine in alternating operation, 5 mechanism which can assume all the necessary control missions, such as pivoting movement, and fixing work according to the nature of the product . For this the engine of

  the printing machine receives control signals which

  during synchronization, the synchronism with respect to the speed of the machine and the succession of products is exactly in phase. In the case of single-flow operation, the position of the stepper motor rotor is maintained with

  the stopping torque due to the electric excitation

  continuous rant of winding. The route of the products is therefore established, and the switch is therefore fixed in the upper or lower position. In the event of jams, a corresponding referral movement is carried out to obtain

  an additional product route. If a bleeding occurs

  rage in the case of a single flow operation, it is even possible in the case of corresponding prescriptions to pass the switch without stopping the machine on the unused route. Preferably, the engine is directly coupled to the axis of the switch. Thanks to the invention, it is possible to avoid

  to have to assemble various means of controlling the

  guillage. We don't need cogwheels - which are born -

  stops to rotate the cam -, we do without cam -

  which is necessary to make coming and going at high fre-

  quence the switch in alternating operation -, we do

  electromagnets - which are necessary to block the

  guillage in the case of alternative operation and stuffing

  rage -, and there is no control lever and ratchet

  which are necessary to spare the new game

  stop the movement of the cam lever. All these tasks

  can be filled by a stepper motor, which is

  dragged by a control and / or adjustment device in operation

tion of the process.

  The invention is characterized in that: * at least one jamming detector is connected which detects the

  jams in one of the directions of delivery of the

  product guiding, at least one jamming detector

  which detects jams in the other direction of delivery

  of the product switch, at least one phase position detector which detects the phase position of the products, a speed detector which detects

  the speed of rotation of the main drive mechanism

  ment, and a control device which predefines the type of production, to an adjustment device which ensures the corresponding frequency of the cycle and the phase position

  relative to the product or its fixation in at least one po-

  rest position, and * a motor connected to the product referral axis is

  arranged downstream of the adjustment device.

  According to other characteristics of the invention: - the motor is preferably a stepping motor, - the motor is preferably directly coupled with the axis of the switch, - the adjustment device is constituted in such a way that , by means of detected speed parameters, signals relating to the phase position of the products and signals relating to the current type of production with regard to

  concerns a single flow operation and an operation

  alternately as well as production by accumulation or

  a duplicate production, it predefines the cor-

  of the cycle and the phase position relative to the

  product or its fixation in at least one rest position.

  Drawings The present invention will be described below

  in more detail from an exemplary embodiment shown

  tee on the accompanying drawings in which:

  - Figure 1 shows a general view of a ma-

  china to fold and the position of the product switch and

  - Figure 2 shows the side view of ai-

  product guiding with its drive motor.

  The printed paper ribbon 15 is first folded lengthwise or cut lengthwise on the folding funnel

  17. On the cutting cylinder 14, the cutting of the pro-

  duits from the paper tape 15. In direct connection with the cutting process, the products are threaded

  on the collecting cylinder 12 which, continuing in turn,

  ner the products to the folding valve cylinder 9, on which the first transverse valve is produced by means of a folding blade 4 and a folding valve 8. After the folding process the products are removed of the folding valve cylinder 9 by opening the folding valves 8 as well as by means of deflectors 27 and they are brought to the product switch 5 by means of conveyor belts 29. Following the product switch 5 are two folding units 1, 2 arranged one above the other for respectively a second longitudinal fold, which is started with a folder 3, 4. Depending on the type of production and prescriptions

  techniques one or two devices 1, 2 can be used.

  The simultaneous use of these devices 1, 2 generally makes it possible to have a speed of the strip and a capacity

  significantly higher printing. For this he was born

  stop distributing the products arriving on the two devices 1, 2 by means of the product switch 5 of

  alternative way (according to the principle of commitment to

  tion). Guides 18, for example in the form of tongues continue to direct the products in the two units of

  folding 1, 2. These elements are blocked on the axis of the

  guillage 25 which is directly connected to a stepping motor which causes the pivoting movements of the sheets

  guide 28 or also the fixing in a transfer device

  Harbor. For this the stepping motor 6 of the switch receives

  control signals from the control / adjustment device 24.

  This in turn receives information from the phase position detector 19, the rotation speed detector 21, and the jamming detectors 22, 23 with regard to the momentary rotation speed, the phase position of the

  products and type of production in terms of function

  single flow operation at the bottom and top, the

  alternately, accumulation production or duplicate production. In addition, the adjustment device 24 is connected to the machine control system, in order to be able to actuate

  in the event of a jam, the switch 5 of the products in question

  quence. Once they have passed switch 5, the pro-

  duits are brought by conveyor belts 29 to the folding units 1, 2 or in the event of jamming they are evacuated outside the normal production flow. To facilitate the transportation of

  In addition, guide elements are used.

NOMENCLATURE OF REFERENCES

  1 Upper folding unit 2 Lower folding unit 3 Folding machine 4 Folding machine Product switch 6 Motor 7 Waste container 8 Folding valve 9 Folding valve cylinder Folded product 11 Needle 12 Collector cylinder 13 Cutting blade 14 Cutting cylinder Tape of paper 16 Pulling cylinder 17 Folding funnel 18 Guidance 19 Phase position detector Production type switch 21 Rotation speed detector 22 Jam detector 23 Jam detector 24 Adjustment device Switch axis 26 Tape rollers 27 Deflector 28 Guide plate 29 Conveyor belts Longitudinal axis O Upper route for products U Lower route for products S Route for falling stuffing or scrap.

Claims (4)

R E V E N D I C A T I ON S   1) Device for controlling and adjusting a product switch to continue to direct folding products, in particular in a folding device on rotating roller machines used to fix the direction of transport to other devices as well as sorting or deflecting folding products, in particular in the event of a jam, characterized in that * at least one jam detector (22) is connected which detects jams in one of the directions of delivery of product switching (5), at least one   jam (23) which detects jams in the other direction   delivery of the product switch (5), at least one phase position detector (19) which detects the phase position of the products, a speed detector   rotation (21) which detects the speed of rotation of the mechanism   main drive system, and a device for   command (20) which predefines the type of production, to a   adjustment device (24) which ensures the corresponding frequency   weighting of the cycle and the phase position relative to the product or its fixation in at least one rest position, and   To a motor (6) connected to the axis of the switch (5) of the   duits is arranged downstream of the adjustment device (24).   2) Device according to claim 1, characterized in that   the motor (6) is a stepping motor.   3) Device according to claim 1, characterized in that   the motor (6) is directly coupled with the axis (25) of the   guillage. 4) Device according to claim 1, characterized in that the adjustment device (24) is constituted in such a way   that, by means of detected parameters of rotational speed, signals relating to the phase position of the products and signals relating to the current type of production with regard to single-flow operation and alternating operation as well as '' an accumulation production or a pro-   double duction, it predefines the corresponding frequency of the cycle and the phase position relative to the product or its fixation in at least one rest position.