JPS59215881A - Device for receiving, packing and moving sheet material - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus suitable for receiving and moving sheet material joined within itself as a continuous strip of tearable paper, such as paper to be processed within a data processing center. Regarding.

Recently, electrical computing and processing systems, such as electrical computing stations associated with computers, have brought increasing popularity to preformed forms of paper.
rm) (in some cases, the so-called self-envelope (self
- The enveloping mold (pre-drilled with hollow holes) is processed by a printing machine, in particular a so-called laser printing machine, in which the sheet is folded into an accordion-shaped continuous strip (l) drawn in units as stubs. The resulting paper package is then fed to the printing press.

After processing by the printing press, the sheets are again accordion-folded into packages and then separated into single sheets by the use of weak lines or tear lines between each sheet and its adjacent sheets.

To date, sheets as processed by printing machines have been assembled into packages corresponding to similar packages at the paper supply station and moved by hand to the next run, which is clearly a waste of time and effort. new high speed printing machine,
For example, since laser printing machines came into use, 1
A package of 1,000 or more papers can be used up within a few minutes, so that the wasted time in loading new paper packages and in removing processed paper packages reduces the utilization of the printing press and thus of the data processing center. It is clear that this will have a major impact on

Feeding paper to the printing machine p! With respect to the
J and the last sheet, i.e. the sheet (i.e. the "tail" J of the paper strip) of the paper of the package (in particular that still being fed to the printing press) by means of an automatic splicing device. This is solved and therefore the consumption (exl+ausion) of the supplied package does not require any interruption of the paper supply and therefore of any interruption of the operation of the printing press.

The main objects of the invention are: - receiving a strip of sheets, i.e. paper, coming out of a printing press and folding the package containing a predetermined number of sheets into an accordion-like shape; - a desired and predetermined number of sheets, i.e. paper strips; cutting the strips when stacked into packages to be formed, - removing the package formed as described above; - cutting and removing the paper and package of sheets with the next sheet and strip of paper; To provide an apparatus in which the stacking is carried out without interference, the stacking of which continues without disturbing the accordion-like folds, - defects caused to the paper and sheets by movement through the printing press and/or other machines are overcome. It is to be.

Another equally more important object of the invention is to provide an apparatus having the above-mentioned characteristics and maximum operational reliability, and which is controllable and located upstream of the device itself, to control the operating speed, specificity, etc. The objective is to provide an apparatus having an operating speed that corresponds to the operating speed of the laser printing press apparatus.

These and other objectives are achieved by a receiving, packaging (packagiB) and transfer device for sheet abrasive material arriving at the device as a continuous strip, in which case single sheets are separated by their tear separation. Separated from each other by a line of weakness, the device comprises a pulling device adapted for pulling the next sheet strip in a controlled manner, and guiding means for receiving said sheet strip and orienting it in a direction perpendicular to the receiving plane. and means for temporarily holding said strip accordion-likely deposited onto said planar guiding means engageable with two opposite strip edges for guiding the green of the strip to a desired position; a temporary separation means which can be inserted into a sheet package defined by a lateral fold of said strip and further folded into a sheet package, and which can be inserted below said sheet package; and detecting the presence of said strip in said tensioning device, said temporary support means being parallel to said separating means, said cutting blade means engaging said one of said edges simultaneously with machining of said temporary support means; a first detection means for measuring and counting the length of the strip passing through the pulling device; and a stacking level of the strip accordion-folded on the receiving plane. and a moving means for removing the package of sheets formed on the receiving surface after actuation of the cutting means.

Particular features and advantages of the invention will become more apparent from the following description of a preferred embodiment, taken in conjunction with the accompanying drawings.

The example of a printing press in a data processing center, which represents a preferred field of use of the invention, is not intended to have any limiting purpose, but merely represents an exemplary use of the apparatus of the invention.

Referring to the drawings, the apparatus of the present invention has vertical members and cross members and is generally designated by the reference numeral 1.
Contains frames indicated by 0. sheets of paper joined together as continuous strips and predefined by forming cutting lines or perforations;
That is, a paper strip 11 consisting of a sheet 12 enters the device by passing over an idle roller 13 which is journalled on an axle 14.

Inserted within the path of motion of the strip 11 is an idle tension roller 15 attached to a pin 16, the ends of which are pivotable to the ends of the two arms 17 of the rocker adjustment assembly. The arm 17 is pivotally supported to the frame 10 by a pin 18.

The arm 17 defines one part of a bell crank lever having a fulcrum at 18, and the second part] 9 is a space formed between the two raised parts 2o and 21 on the rod 22. , said rod carrying at one of its ends a friction row 223 pivotally mounted on the rod 24, while the other end of the rod 22 slides on the piston 26. It is fixed to the cylinder 25 which is removably mounted, and is fixed to the stem 271i7 frame 1o of the screw seam 26.

Cylinder 25 includes two apertures 28, 29, so cylinder 25 is double acting. The rod 22 is guided along its horizontal movement direction by a fixed guide 30 of rectangular cross-section, so that a rod with a corresponding cross-sectional shape is prevented from rotating but can only slide in the axial direction.

The roller 23 together with a cylinder 31 journalled on an axis 32 forms a drag group which has the purpose of pulling the strip 11 coming from the row 213 by passing it under the tension roller 15; The pull group can be automatically controlled as described below.

The drive means 33 moves the roller 31 via a chain 34 and a pinion 35 wedged on the shaft @32.

Below the nip (niρ) of rollers 31 and 23 there is vertically aligned a diverging guide formed by two plates 36, 37 which define the angle of change of the vertical position of the strip being pulled by the pulling device. .

The lower exit of the guide (36, 37) is a vertical bar 3.
9 open towards a stacking and gathering area formed upwardly by two slanted surfaces consisting of slanted bars 38 extending up to 9;
A bar having an axially tapped hole to form a cage of square cross-section and having two symmetrical counter-threaded sections, each acting as a worm thread. End block 4 engaged by 42
1 horizontal tie bar (tie bar) fixed to 4
connected by 0.

As seen in FIG. 3, rotation of the bar 42 incidentally via a drive belt 43 engaging a pulley 44 causes the pairs of blocks 41 attached to the bar 42 to move synchronously and equidistantly from each other. The width of the pentagonal basket can be adjusted as a function of the size of a single sheet 12 by moving the tie bars 40 closer and farther apart.

As can be seen in FIG. 1, the right-hand bar 40 has a bracket 45 fixed thereto, to which is fixed a shilling and a shilling 46 of the working piston assembly, the stem 47 of the piston being fixed to its free outer side. The bracket 48 is pivoted to a swing plate 49 which is pivotally mounted at its end to a vertical pin 50' with a force of <-39.

As a result, the extension and reversal movement of stem 47 brings rocker plate 49 into a vertical position aligned with a vertical plane such as defined by bar 39, and the rocker plate rotates outwardly through 90 degrees (or more). and the inverted position in which the bar 39 is rotated, so that there are no obstacles below the horizontal plane defined by the lower end of the bar 39.

The blade 50 supported by the shaft 51 passes through the opening of 7<39, and the shaft 51 rotates in the direction of the arrow (f: IS
Figure 1). It is also clear that the end of the shaft 51 is firmly fixed to the block 41, so that the position of the shaft 51 is similar to that of the bar 40.
The position can be adjusted at the same time.

The blades 50 are staggered at appropriate angles about the axis 51 so that each blade (or axis 51
A group of blades distributed by similar angles along
ding 5ection) by the already existing fold line of a similar package.

The blade 50 has a predetermined degree of flexibility (f 1exibi l
Preferably, it is a plastic material that is flexible and resistant to repeated bending or bending. If necessary, the action of the blade 50 can be placed on the two inclined planes defined by the bar 38, suitably inclined and directed downwardly to accompany the strip knob leading from the pulling device. This can be assisted by nozzles or nozzle bars that are actuated alternately to emit air jets.

Furthermore, the bar 38 is equipped with symmetrically positioned microswitches 53, the functions of which are explained below. The axis is symmetrical to the blade 55, which is similar to the blade 50.
and has the same function as the shaft 51 and rotates in the direction of the arrow 56.

(t, empora-
ry 5 separate plate) 57 is the axis 54
It has been set up in response to

The plate 57 has a reference number 59 so as not to interfere with the shaft 54.
The arm 58 is held by an arm 58 having the appropriate curvature shown by the tie bar (tie l) which is pivotably mounted to the 7 frame at 61.
ar) fixed above at 60.

The upper end of the tie bar 60 is indicated generally by the reference numeral 63 and is connected to the plate 57 between the two said positions.
The piston is secured to the free end of the piston stem 62 of a cylinder piston assembly which is secured to the frame 10 for displacement.

Plate 57 is suitably curved and abuts below a plane defined by the upper surface of the temporary separation and cutting plate, indicated by 64. plate 6
4 defines, together with a lower plate 65, a housing cavity for a cutting blade 66, and plates 64 and 6
The assembly formed by 5 has a rest position shown in FIG. 1 and a plate 64 with a beveled portion shown in FIG.
and an operating position in which the edges of 65 abut against the four rocking plates.

In order to effect the displacement of the plates 64 and 65, the latter is fixed to a conveying chain 68 passing through a block 67 around six toothed pinions and 70, one of the toothed pinions of the latter being driven by a motor 71. Driven.

For actuation of the flade 66, a mechanism is provided comprising an actuation jack 71, the stem 72 of which is fixedly fixed by a bell crank arm 73 to a plate 74 containing two slots 75 and 76, the first of which The slot has two parts 77 parallel to the direction of extension of the stem 72.
．． 78 and a sloped portion 79, while the slot 7
6 has an inclined section 80 parallel to section 79 and a slot 7
9 and a portion 82 that is parallel to and aligned with portion 78 of FIG.

In the slots 75 and 76 there is a pin 8 which is slidable along the slot itself and cannot be dislodged from the slot.
3 and 84 are placed, the pins of which are fixed to the ends of two actuating bars 85 and 86, the capacitive ends of said two actuating bars being fixed to the blade 66.

As a result, the return movement of stem 72 of jack 71 displaces plate 74 and thus causes out of phase engagement of pins 83 and 84 by sloping portions 79 and 80 of slots 75 and 76, respectively. This causes blade 66 to advance until it exits the slit formed between the tapered greens of plates 64 and 65.

The deficiency in the slot 76 of the initial part corresponding to the part 77 of the slot 75 causes the blade to be tilted so that that part corresponding to the slot 76 pre-projects from said slit, so that the cutting action is in "paper knife" fashion. be.

This result is also achieved by a blade with an inclined edge that is actuated directly to perform the cutting action: f'7+.

Furthermore, two corresponding portions 78 and 82 of slots 75 and 76 are provided for terminating the cutting action when the blade is substantially straightened and brought back into a position parallel to the starting position.

It is clear that a reverse displacement of the jack stem 72 returns the blade to its starting condition.

It will be noticed from FIG. 3 that the assembly of blades and actuating mechanism is displaced together with plates 64 and 65. The sheet strip coming from the tensioning device is received on a plane 81 which is vertically movable in a controlled manner and which is fixed at the upper end of the sills 87 of the two actuating shafts (FIG. 5).

Since a curved panel 88 made of a material (for example, a metal sheet) that is rotatable about eight axes on a plane 81 and has a predetermined flexibility is pivotably mounted,
The togi panel with a predetermined load applied is straightened and
Fully abutting the plane 81, a micro switch 90 (or a pair of parallel micro switches 90 for safety) is actuated for the purpose described below.

Finally, the frame 10 has a moving mechanism fixed to it, which is made up of 7 to 91 shaped as a closed polygon.
Its width is less than the width of the final package to be moved, and said arm is movable reciprocatingly between the position shown in FIG. 4 and the final movement position by a chain 93 driven by motor means. The packages mounted on a certain vertical rod 92, in this case stacked on the plane 81, are indicated by dashed lines in figure f54 and with the reference numeral 94.
It is displaced to the position shown in .

To control the operational functions of the device of the invention, a paper strip presence detector (a paper strip presence detector) is installed in the tensioning device.
Control means are provided comprising a +p presence detector), said detector being formed by an assembly comprising a charging tube 94 and a receiver 95, whereby the beam emitted by the phototube 94 is intercepted by the strip 11. Ru.

By reference numeral 96 the length of the strip 11 passing through the pulling device, eventually the plane 81 in which the package is to be formed
An apparatus for detecting and measuring the number of sheets stacked on top is shown.

In a preferred embodiment of the invention, the device 96 comprises a detector of known type by which the side holes typically provided in the format processed in the data processing center are counted and each shape is divided by a constant factor corresponding to the number of holes provided.

Finally, there are two level detectors, typically in the form of phototubes, with reference numbers 97 and 9, having the following functions:
It is indicated by 8.

a) Phototube 97 is used during package formation to indicate that the highest level of paper has been reached and to carry out the programmed lowering of the receiving plane while simultaneously holding the already formed package. b) The photocell 98 is connected to the plate 57 and then to the next plate 6.
4 and 65 is used as a constant reference level for the lowering of the receiving plane 81 required for the insertions of 4 and 65.

The operation of the device according to the invention takes place as follows.
From there it is inserted between the tensioning device, ie, the shilling 31, and the roller 23.

It is clear that the operation of the Schilling-31 motor causes the forward movement of the strip, the latter being fed from the printing press (not shown) at the operating speed of the printing press. The pulling speed is therefore adjusted based on the operating speed of the printing press.

The tensioning roller 15 thus assumes a balanced position and, in the event of a stoppage of the printing press and/or the device according to the invention, the tensioning roller 15 takes up the strips that the printing press takes back at each stoppage due to its inherent operating characteristics. It is possible to return a certain length to the printing press, corresponding to the length of .

In other words, when the printing press or receiving device stops (e.g. due to a blockage), the working fluid flows through the opening 2 of the cylinder 25.
8, the rod 22 is moved back toward the shilling itself (toward the left in FIG. 1) and thus the pin 18
is replaced by a counterclockwise rotation of the arm 19 around and a lifting of the tensioning roller 15.

On the contrary, if during operation of the device there is a difference between the operating speed of the pulling device and the operating speed of the printing press (and thus the speed of approach of the strip 11 towards the rollers 14);
(Due to the position of the tension roller 15 changing (as the tension roller 15 rises or falls)
As a result, the arm 19 acts on the raised portion 20 or 22, respectively, and displaces the suppression roller 23. The nip between the rollers 23 and the cylinder 31 is therefore varied to increase or decrease the pulling speed, so that the speed of the incoming strip is eventually automatically adjusted and adapted to the operating speed of the printing press.

The strip from the pulling device passes through the space defined by guides 36 and 37.

Due to the fact that the strip comes out of the package in which it is already folded like an accordion, and the passage through the printing press does not remove the form of such a strip, the latter strip is folded (ui 1l
tend) is deposited in a similar manner on the planar portion 81, the strips are also assisted by engaging the plates 50 and 55 alternately, so that the folding or edges of the strips are deposited on the planar portion 81 so that they again assume their form. engaged at times.

At the beginning of the stacking of the strips 11 on the plane 81, the plane 81 is positioned in its uppermost position, and as the layers of sheets become progressively larger on the plane 81, the photocell 98 is actuated, thereby depositing a predetermined position on the plane 81. The descent of is controlled. During this time, the sheets (for+n) thus stacked in the paracane device are counted by a detection device 96 and compared with a predetermined value set in the device's electrical circuit.

When a predetermined number of sheets is reached, the jack 63 is actuated and the panel 57 is rotated to the operating position shown by the solid line in FIG.
' is deposited against the top surface of panel 57 and is thus separated from the immediately preceding sheet.

An opening is thus formed in the enlarged package into which the assembly formed by the two plates 64 and 65 also holding the cutting blade device can be inserted. By switching on the motor 71, 2
causing forward movement of the assembly of two plates 64 and 65;
The two plates 64 and 65 are rotated downwardly (i.e. towards the position shown in FIG. Stop. The rotational action of panel 57 also causes the assembly formed by plates 64, 65 to move directly downwards and directly upwardly relative to panel 57 with the bevel edges formed therefrom in the front section and thus relative to panels 64 and 65. It allows for a precise fit of the fold between two sheets in each case positioned in the same direction. The front edge of the plate 64.65 is further contoured to ensure that the blade 66, when emerging from the open front slit of the plate 64.65, accurately engages the folded edges of the two aforementioned sheets. It is shaped.

By actuating the jack 71, the blade 66 is actuated as described above so that the strip 11 continues to be stacked on the upper surface of the plate 64.

Before the actuation of the blade 66, the flat part 81 is compacted so that the sheets already stacked on said flat part are compacted before the cutting operation to form the desired package, so that the package itself obtains a clear CLIL. It must be pointed out that this results in the desired shape and compactness and that no tensioning of the sheet by the blade occurs before the cutting operation is started or completed.

Apparently, the blade 66 is preceded by the shilling and piston assembly 47, 46 and rotates the rocker plate 49 outwardly and disengages the rocker plate 4, which would otherwise prevent the action of the blade.

At the end of the cutting operation, the flat part 81 is lowered again to the initial position, in which the arm 91 slides with the chain 93 to remove the finished package.

The flat part 81 is then returned to the uppermost position (in contact with the plate 65) and the assembly formed by the plates 64 and 65 (in this opening the blade 66 has already been retracted by actuating the jack 71) is removed. The solid is also pushed back.

Similarly, the panel 57 is retracted by actuation of the jack 63 and the process is started again by the gradual lowering of the plane 81 under the control of the photocell 97. This photocell 97 therefore controls the maximum level reached by the deposited stop before the plane 81 is lowered a predetermined distance.
Acting as a safety device, the flat section 81 during the compaction step preceding cutting.
It also controls the upward stroke of. In addition to normally controlling the operations described above, the phototube 98 is also inserted 7" before the assembly of plates 64, 65 assumes its cutting operation position.
Lz-) 57 top t: Also controls the height of the accumulated paper sheets. Finally, the microswitch 90, i.e. the pair of microswitches 90, is switched on to control the compacting stroke so that the cutting blade operates under the best compacting conditions of the sheet package formed by the strip 11. .

It is important to explain the geometry of the microswitch 53 when the paper strip passes through the laser printing machine, the paper strip is subjected to high temperature (in the range of 200°C) action and severe mechanical stretching. During the stage in which the paper strip passes through the tensioner and the guides 36, 37, the strip undergoes a deformation called bourrage, i.e. an abnormal bulk.
King).

In such a case, within a short time the strip will be removed from the guide 36.
．． In the cage space below 37
l) The tube itself may be irreparably damaged and the failure of the device may become more serious.

Activation of the microswitch 53 by the strip causes an instantaneous stop of both the pulling device and the printing press, so that measures can be taken to restore correct machine operation. In such a case, the shilling 25 controlling the upward movement of the tensioning roller 15 causes a portion of the strip to be released which is sufficient for the recovery required by the printing press.

Modifications of the device of the invention according to special requirements are furthermore possible and foreseen.

For example, with respect to the inlet roller 13, a metal brush or similar member may be provided for the purpose of removing static electricity that may be carried by the paper.

Similarly, the incoming filter paper strip can be subjected to some cooling (either by air or by passing over a long metal surface) to minimize the risk of "brushing" mentioned above.

Furthermore, the cage space defined by bars 38 and 39 has the purpose of leveling the package being formed.
It may have an associated rectangular panel, preferably of vibrating type.

Instead of a phototube for controlling the periodic lowering of the plane 81, in conjunction with the folding blades, a friction-type device is provided which acts during their rotation as a function of and in response to the resistance experienced by the blades themselves. I can do it.

Finally, instead of the blade 66 acting similarly to a paper knife device, it has a substantially triangular shape so that the fold to be cut initially engages at one point and does not follow an extension line. A blade may be provided.

Furthermore, if required by the form of the paper strip (form 5trip), the compacting operation of the package' formed on the plane 81 can be repeated at intervals without being accompanied by a cutting operation; regularity of package size and stretching of a single sheet;
The formation of accordion-folded strips is further ensured.

However, the above considerations are possible within the scope of the present invention,
and is not to be construed as a description of all foreseeable further embodiments.

[Brief explanation of the drawing]

FIG. 1 is a partially sectional side view of the device according to the invention; FIGS. 2, 3 and 4 are respectively II--
5 is a view of the apparatus of FIG. 1 in the direction below the arrow in FIG. 1; Figure 6 is a diagram similar to Figure 1 showing the device of the invention in different operating states. 10... Frame 11... Strip 12... Paper (i.e. sheet) 13... Idle roller 15... Idle tension roller (tension roller) 1
7...Arm 22...Rondo 23...Friction roller 25...Cylinder 30...Fixed guide section 33...Driving means 34...Chain 3]...Roller 36.37... - Plate 38... Inclined bar 39... Vertical bar 42... Bar 46... Cylinder 49... Rocking plate 50... Blade 53... Micro switch 55... Blade 57. ... Temporary separation plate 58 ... Arm 64 ... Plate 65 ... Lower plate 6G ... Blade 75.76 ... Slot 81 ... Flat part 85.86 ... Actuation bar 88 ... ...Panel 90...Micro switch 91...Arm 94.97.98...Phototube procedure amendment m Patent Application No. 8C1297 3, Relationship with the amended party's case 'l1-1i'r Applicant Address Δ73 Livorno Corso Amete 57100 Italy - Name Luciano Meschi August 30, 1982 (shipment date) 6 , Drawing subject to amendment (Figure 1) Engraving of drawing (no change in content)

Claims (1)

Claims: 1. An apparatus for receiving, packaging, and moving sheet material fed into the apparatus in a continuous strip with single sheets defined by separation lines, comprising: a fixed frame; , a pulling device adapted to advance the incoming continuous strip in a controlled manner, and to receive the strip and direct it perpendicularly onto the receiving and packaging plane for stacking it in an accordion-like configuration; (l) means for temporarily holding the strips and means for accompanying the strips for stacking them in an accordion-like shape; 17) means for temporarily separating and supporting the strip which can be inserted into the opening between the tap and the receiving plane; and immediately below the means for separating and temporarily supporting the strip. cutting blade means for engaging a green formed by the accordion-shaped folded strip; first detection means for detecting the presence of the strip in the tensioning device; and a first detection means for detecting the presence of the strip in the tensioning device. second detection means for measuring the length of the strip passing through the strip; and third detection means for detecting the length of the strip folded accordion-like on the receiving plane. Apparatus characterized in that it comprises detection means and movement means for removing the package from the operating surface of the receiving plane when the package is formed and separated from the incoming strip. . 2. The device of claim 1, wherein said tensioning device includes an advancement cylinder actuated by drive means and a friction roller engaging said sill. 3. The device of claim 2, wherein the friction is pressed against the cylinder via adjustable thrust means. 4. The apparatus of claim 3, wherein said thrust means includes a double-acting cylinder and piston assembly and includes a pair of bars taken one dimension from the ends of said friction roller shaft. 5. To each said bar is attached the end of the first arm of a bell crank crane supported on a fulcrum in the frame of the apparatus, and the other arm of the bell crank lever 5. The device according to claim 4, wherein the device is fixed to a tensioning roller parallel to the sill and located upstream of the pulling sill with respect to the direction of advancement of the strip. 6. The device of claim fjrJ5, wherein the mounting portion includes a raised portion of the IN, between which the free end of the first arm is slidably received. 7. The apparatus of claim 7, wherein the first detection means is located upstream of the pulling cylinder. 8. The first detection means comprises a photocell and a receiver positioned such that passage of the strip intercepts the beam emitted by the photocell.
Apparatus described in section. 9. The apparatus of claim 1, wherein said second detection means includes a device for counting the number of side holes provided in the edge of said strip of sheet material. 10. The device according to claim 1, wherein the guiding means comprises a pair of flat surfaces that diverge downwardly from each other starting from the position of the +7 tip exiting the tensioning device. . 11. The means for temporarily retaining the strips are spaced from each other and essentially formed by slanted bars and vertical no-N's defining opposite sides of the cage. 2. The device of claim 1, wherein the cage is pentagonal. 12. The vertical bar on one side of the cage has a rocking plate thereon movable between a retracted, outwardly rotated position and an operating position coplanar with the plane defined by the vertical bar. 12. The device of claim 11, which is stationary. ]3. The rocker plate is mounted on the frame and is moved between the two positions by a shaft having the free end of its piston stem pivoted to the rocker plate. The device described in item 12 of the scope of patent n11. 14. The trailing means includes a shaft having two parallel blades, the blades being made of a flexible material and mounted on the shaft at positions staggered by a predetermined angle. 2. The apparatus of claim 1, wherein said blade passes through an opening in a vertical bar midway through rotation of said shaft. 15. Attached to the inclined bar of the cage are means for stopping the operation of the apparatus, the means being adapted to stop the strip from being received and backed into the cage. 12. The device of claim 11, which is movable upon contact. 16. The apparatus of claim 15, wherein said stopping means comprises a micro-swivel notch. 17. The apparatus of claim 14, wherein said associated means further include air nozzle means mounted for controllingly ejecting air 70 directed in a predetermined direction. , the means for separating and temporarily supporting the stop 1 knob is in the retracted position and the bottom force of the means for temporarily holding the stop 1 knob closed. 19. The device of claim 1, comprising at least one horizontal plate slidable between the operating position and the operating position. 19. The means for separating and temporarily supporting the strips It includes a pair of horizontal plates spaced apart from each other and movable together, the plates terminating in beveled edges effective to accommodate the folding of the sheet material strips being stacked. Claim No. 18
Apparatus described in section. 20. A package of folded sheet material positioned above the plane or plate is temporarily opened and at one edge of the sheet material is placed against the storage cage, i.e. against the rocking plate. Claim 18 or 19 comprising means for acting
Apparatus described in section. 21. The means for temporarily opening the package are:
Claim 2 wherein the panel is movable between a working position in which the panel interferes with the green or fold-out of the sheets stacked in the storage cage and a stationary or retracted position.
The device described in item 0. 22. The panel is secured to the frame and is actuated between the working positions by a jack having the free end of a piston stem pivotably attached to the panel. 20. Apparatus according to claim 20. 23. The cutting blade means is mounted below the plate or between the two plates for separating and temporarily supporting the step. and movable together with the plate or plates. , 1, 18 or 19. 24. The apparatus of claim 23, wherein said cutting means is configured to initially engage at one point of said fold to be cut. 25. Apparatus as claimed in claim 24, wherein said cutting flade means is essentially triangularly shaped. 26. The cutting blade means have a rest position in which they do not protrude relative to the plate or plates for separating and temporarily supporting the strip, and a rest position in which they do not protrude relative to the plate or plates for separating and temporarily supporting the strip; 26. The device according to claim 24 and claim 25, wherein the device is movable with respect to a working position protruding from the surface edge. 27. An actuation mechanism is provided comprising two rigid bars secured to the blade and a drive shaft for the bars for reciprocating and controlled displacement of the blade means opening the two positions. Claim 2
The device according to item 6. 28. The free end of the rigid bar is slidably mounted in a slot formed in a plate fixedly fixed to the piston stem of the jack, the slot being adapted to accommodate reciprocating displacement of the jack stem. and the resulting reciprocating displacement of the plate causes the rigid bar and the blade to
28. The device of claim 27, wherein the device is configured to displace the opening in two positions. 29. The slot is such that the initial advancement of one of the rigid bars is delayed with respect to the corresponding movement of the other of the bars, so that the blade assumes an oblique configuration with respect to its direction of movement. 29. The device of claim 28, wherein the device is shaped. 30. The apparatus of claim 11, wherein said receiving plane is attached to at least one jack for controlled raising or lowering of said plane. 31. A panel with a curved shape is attached to the receiving plane, and the flexibility of the panel is such that when a pressure exceeding a predetermined value is applied to the panel, the panel bends to the upper surface of the receiving plane. Apparatus according to Patent No. F530, which is adapted to be flattened against the surface of the device. 32. There is provided between the receiving plane and the panel at least one protruding micro-switch operable by the panel when the panel is flattened. equipment. 33. The moving means includes an arm movable transversely to the receiving plane between a rest position and a moving position when the receiving plane is in its lowest position.
:The device described in tS1. 34, said third level detection means comprises two vertically aligned photocells, one of which is taken in alignment with said second cutting blade means, and one of which is taken in alignment with said second cutting blade means;
2. The apparatus of claim 1, wherein said photocell is aligned with a reference level positioned above said first photocell.