EP1926589B1 - Arrangement for producing paper cushions - Google Patents

Abstract

Device for producing paper cushions from a paper web rolled up in a supply roll (12) comprises a machine (20) having coupling elements via which a transport carriage with coupling elements (16) is detachedly coupled to the machine. The supply roll is positioned on the transport carriage so that when the carriage is coupled to the machine the supply roll can be inserted into a bearing arrangement of the machine using a rolling and/or sliding movement. An independent claim is also included for a transport carriage for the above device. Preferred Features: The bearing arrangement is formed by two end plates (27) with recesses (28). The end plates also form the housing side walls of the device. The carriage has a structure (14) on which is fixed a height-adjustable platform (18) which pivots about a horizontal axis.

Description

The present invention relates to a device for the production of paper pads and a trolley for such a device according to the preamble of the independent claims (see. FR-A-2 734 777 ).

One from the WO-A-00/07808 known. Device manufactures from the roll of paper unwound from the supply roll a paper cushion with good damping properties and a low density, which can be used in particular for packaging shock-sensitive objects.

A disadvantage of the known from the prior art devices is that the paper supply roll must be inserted by hand into the device. The paper supply rolls used can be very heavy, and in particular the lifting of the roll for insertion thereof into the device is thus associated with a considerable expenditure of force and generally requires at least two persons.

Furthermore, at one of the FR-A-2 734 777 known device of the trolley remain coupled to the device for producing the paper pad until the paper roll is used up.

It is the object of the present invention to provide a. Device and a trolley according to the preamble of the independent claims in such a way that the insertion of the supply roll is facilitated in the device, with simple means to ensure that no additional space is required during operation.

The solution of this object is achieved by the features of the independent claims.

With the help of the trolley according to the invention, the supply roll can be transported almost without any effort to the machine of the device. An operator, who would normally not be able to lift the supply roll and insert it into the device alone, can couple the trolley to the machine via the mating coupling elements and then roll the supply roll into the storage device by rolling and / or sliding insert the machine.

Subsequently, the operator can uncouple the trolley from the machine and reuse it to transport another supply reel to the machine.

The transport carriage has an actuating pedal which is operatively connected to the coupling element of the transport carriage such that actuation of the actuating pedal causes the coupling element to move from the latching position to the release position. In the case of a horizontally extending rod as a coupling element, this can thus be lifted into its release position with the aid of the actuating pedal, so that an operator can at the same time push the transport carriage into the desired position and lift the rod. For example, with the trolley coupled to the machine, it can depress the operating pedal to raise the bar to its release position, and then move the trolley away from the machine.

According to an advantageous embodiment of the device, the bearing device of the machine of the device is formed by two end shields with bearing recesses formed therein. Such a storage device is particularly easy to manufacture and use. The end shields can also simultaneously form lateral housing walls of the device.

Advantageously, the trolley on a scaffold on which a platform height adjustable and / or about a horizontal axis is pivotally mounted. Such a platform can serve as a support surface for the supply roll. The height adjustability is advantageous, inter alia, when one and the same transport vehicle is to be used in different devices, since the height of the platform can then be adapted to the desired final height of the supply roll in the device. In addition, the height adjustability of the platform in any case already facilitate the loading of the trolley with the supply rolls. For example, similar to a forklift, the platform may initially be moved up to load the supply rolls from a higher level shelf to the trolley. To insert the supply rolls in the device, the platform is then adjusted down to the height required for insertion into the storage device. In the simplest case, the platform can essentially lie in a horizontal plane and can only be moved up and down. But it can also be additionally or alternatively pivotable about a horizontal axis.

Preferably, the platform is cantilevered to the frame of the trolley. This framework may for example consist of a simple vertically extending frame, which lies on the side facing away from the machine of the device when the trolley is coupled to the machine. In this case, a height adjustability and / or a pivotability of the platform can be realized particularly easily.

Preferably, on the side facing towards the machine, when the trolley is coupled to the machine, the platform has a blocking element adapted to hold the supply roll on the platform. The blocking element may be, for example, a simple projection. But it can also be a mobile one Locking element may be provided, which is adjustable between a locking position in which it holds the supply roll on the platform, and a release position for transferring the roller to the machine. Conceivable, for example, a pivotable or movable barrier that can be locked in a locked position, or an attachable wall element.

According to a preferred embodiment of the invention extends through the center of the supply roll a laterally projecting beyond the roller shaft, which is insertable into the storage device on the machine of the device. For example, the bearing device, as already mentioned above, be formed by two bearing plates with bearing recesses formed therein into which the shaft passing through the supply roll is inserted. In order to enable a rotation of the shaft, upwardly projecting pins, screws or the like may be provided in the recesses of the end shields, which are insertable into corresponding slot-shaped recesses in the shaft of the supply roll. Such recesses can be formed in a particularly simple manner if the shaft is a hollow shaft which has slot-shaped material recesses at its ends projecting laterally beyond the supply roll. Moreover, such a shaft can also facilitate the handling of the supply roll before it is stored on the trolley, and it can also serve as a handle for transferring the supply roll from the trolley to the storage device of the device as a handle to the supply roll to its final position roll.

The coupling element of the trolley is preferably movable between a latching position and a release position, wherein it can be latched in its latching position with the provided on the machine of the device coupling element. In particular, the two coupling elements be designed so that the coupling element of the trolley must be raised in order to bring about the locking or engagement with the coupling element on the machine of the device.

According to a preferred embodiment of the invention, the coupling element of the trolley comprises a bolt which can be suspended in its latching position in at least one recess formed on the machine, which forms a coupling element of the machine. The coupling of the trolley to the machine can then be brought about or released by an operation of the bolt, wherein the bolt can in principle have any conceivable shape.

The latch may be formed, for example, according to a preferred embodiment for its simplicity by a horizontally extending rod whose latching position is below its release position, and which can be suspended in its locking position in at least two recesses formed on the machine, which form coupling elements of the machine.

In this case, in order to couple the trolley to the machine of the device, it is sufficient to bring it as close as possible to the device, raise the rod, and then move the trolley up to the machine until the rod in its release position over the Recesses lies. If the rod is now moved to its lower detent position, it slides in the provided on the machine for this purpose recesses, whereby the coupling of the trolley is made to the machine. In the lower detent position, the rod is held solely by gravity.

Conversely, to release the catch, it is then sufficient first to lift the bar and thus to move it into its release position, and then to move the transport cart away from the machine of the device.

Of course, differently designed coupling elements can be used. Thus, for example, a fixed, horizontally extending rod on the machine interact with movable between a locking and a release position gripper elements on the trolley.

Preferably, a pointing in the direction of the trolley bevel is formed on the machine, which is considered by the trolley from the recess for the bolt. If a plurality of recesses are provided, is preferably in front of each of such a slope. Thanks to this slope of the bar, for example, the rod described above, not only be raised by an operator in its release position, so that the trolley can be moved up to the machine. Rather, when the trolley is slid against the machine, the ramp ensures that the latch is moved up the slope to its release position. It is therefore sufficient if the operator moves the trolley to the machine, taking care that the bolt comes to rest on the slope formed on the machine. If he now moves the trolley further in the direction of the machine, the bolt is lifted by itself along the slope to its release position and finally slides into the recesses located behind the slope.

In the following, a preferred embodiment of the invention will be described purely by way of example with reference to an embodiment and with reference to the accompanying figures.

Fig. 1

eine schematische Darstellung der Vorrichtung vor Einle- gen der Vorratsrolle in die Lagervorrichtung;

Fig. 2

eine schematische Darstellung der Vorrichtung aus Fig. 1 nach Einsetzen der Vorratsrolle in die Lagervorrichtung;

Fig. 3

einen Schnitt entlang der Linie III-III in Fig. 2.

The figures show in detail:

Fig. 1

a schematic representation of the device before inserting the supply roll in the storage device;

Fig. 2

a schematic representation of the device Fig. 1 after inserting the supply roll in the storage device;

Fig. 3

a section along the line III-III in Fig. 2 ,

Fig. 1 shows a schematic representation of an apparatus for producing paper pads. The entire device consists of a in Fig. 1 On the machine 20 are a forming device 22 with a Umformtrichter 23 and a device 24 to the actual Making the paper upholstery attached. The forming device 22 and the device 24 are already known per se and not the subject of the present invention, so that they will not be described in detail below.

The machine 20 stands on lockable rollers 21 so that it can be moved. How to get in Fig. 2 detects, a supply roll 12 can be inserted into a storage device, which is formed by two end shields 27, which are each provided at its upper end with bearing recesses 28. A consisting of at least two paper layers of paper web 13 is unrolled from the supply roll 12 and fed by means of a system of a guide roller 40, guide rollers 42, 44, 46 and a paper guide 48 of the forming device 22. The end shields 27 each form a lateral housing wall of the device in a lower region of the machine 20 and protect the deflection and guide rollers 40, 42, 44, 46 lying behind it. Since the latter are not the subject of the present invention per se, the following will be described below they will not be discussed further.

The bearing recesses 28 in the end shields 27 each have an upwardly open, semicircular cross-section, so that a shaft 17, which extends through the center of the supply roll 12 and projects laterally beyond this, can be rotatably mounted in the bearing recesses 28. The end shields 27 terminate at their upper end with an approximately rectangular inwardly facing portion, which is not shown in the figures. At the height of the bearing recesses 28 in each case a screw 25 is attached to this area that it projects vertically upwards into the recess 28. The shaft 17 is a hollow shaft and has at its laterally over the supply roll 12 protruding ends each two opposing slot-shaped recesses 35. In Fig. 2 the device is shown in its operating state in which the supply roll 12 is suspended with its shaft 17 in the bearing recesses 28. The screws 25 are seated in the slot-shaped recesses 35 of the shaft, so that the shaft 17 can not rotate in the bearing plates 27 when rolling the paper from the supply roll. As a result, an undesirable lateral run away of the paper web can be prevented.

At the in the Fig. 1 and 2 On the left side of the end shields 27, which faces in the direction of the transport carriage 10 described in more detail below, each bolt receptacle in the form of a metal plate 26 is arranged below, which projects beyond the bearing plate 27. The small compared to the end plate 27 metal plates 26 each have on their pointing in the direction of the trolley 10 front a downwardly tapered profile. Behind this bevel in each of these metal plates 26 each have a semicircular, upwardly open recess 29 is formed, which is similar to the bearing recesses 28, and their function will be described in more detail later.

To insert the supply roll 12 in the end shields 27 with their bearing recesses 28 of the trolley 10 is used, which will be described in more detail below. The trolley 10 has a vertical frame 14, which stands on a horizontal base frame 15, are attached to the bottom rollers 11 so that the trolley 10 as well as the machine 20 can be moved. On the frame 14, a horizontal platform 18 is mounted adjustable in height, on which the supply roll 12 as in Fig. 1 can be stored shown. The platform 18 has on its side facing the machine 20, a blocking element 19 in the form of two upwardly projecting lugs, which prevent the supply roll 12 unintentionally from the platform 18 rolls. These Noses can be resiliently mounted and retractable in the platform 18 to facilitate the loading of the trolley 10 with the supply roll 12 and also the transfer of the roll 12 from the trolley 10 to the machine 20. Rolling the supply roll 12 in the opposite direction of the machine 20 prevents the framework 14th

In Fig. 1 the device is shown with attached to the machine 20 Dolly 10. The attached to the trolley 10 part of the coupling mechanism is in the sectional view of Fig. 3 to recognize. The horizontal base frame 15 of the trolley 10 is in Fig. 3 can be seen from above, and it can be seen that on its front side facing towards the machine 20, which is in Fig. 3 is up, open. At the two parallel side parts of the base frame 15, one of which also in the Fig. 2 and 3 can be seen, a U-shaped frame 30 is attached. The U-shaped frame 30 lies within the base frame 15, and its three sides 34, 36 are parallel to the three sides of the base frame 15. In the state shown in the figures, the base frame 15 and the U-shaped frame 30 are substantially in a plane. The side legs 34 of the U-shaped frame 30 and the parallel thereto side parts of the base frame 15 are connected to each other via two rotary shafts 33. The inner U-shaped frame 30 is thus pivotally mounted on the base frame 15 about a horizontal axis d.

On the two side legs 34 of the U-shaped frame 30, a horizontal bar 16 is attached to the open side of the U, which projects laterally beyond the base frame 15 and rests on this. As in Fig. 1 is shown, this rod can engage in the two above-mentioned recesses 29, which are formed in the metal plates 26 on the bearing plates 27 of the machine 20. Opposite the rod 16 is at the two Side legs 34 of the U-shaped frame 30 connecting transverse side 36 of the same an operating pedal 32 is mounted, by the operation of the U-shaped frame 30 can be pivoted about its pivot axis d. If the operating pedal 32 is depressed, the rod 16 moves in Fig. 1 and 2 consequently upwards. When the operating pedal is released again, the rod 31 moves down again into the locking position shown in the figures.

In order to couple the trolley 10 and the machine 20 to each other, an operator must first move the trolley 10 as close as possible to the machine 20, so that the rod 16 is lifted by the chamfered metal plates 26 in a release position and finally into the recesses 29 engages. The trolley 20 and the machine 10 are now firmly connected.

In this in Fig. 1 shown coupled state, the supply roll 12 now over the locking element 19 away between the end plates 27 in their in Fig. 2 shown position to be rolled until the axis 17 comes to lie in the bearing recesses 28.

Subsequently, the trolley 10 can be decoupled from the machine 20 by the operating pedal 32 is depressed, so that the rod 16 is raised back to its release position. Thus, the locking is released, and the trolley 10 can be moved away from the machine 20 again, for example, to be loaded with a new supply roll.

LIST OF REFERENCE NUMBERS

10

Dolly

11

role

12

supply roll

13

paper web

14

framework

15

base frame

16

pole

17

wave

18

platform

19

blocking element

20

machine

21

role

22

reshaping

23

Umformtrichter

24

Device for producing the paper upholstery

25

screw

26

metal plate

27

end shield

28

bearing recess

29

Recess in metal plate 26

30

U-shaped frame

32

operating pedal

33

Rotary shaft for U-shaped frame 30

34

Side legs of the U-shaped frame 30

35

slot-shaped recess

36

Transverse side of the U-shaped frame 30th

40

idler pulley

42, 44, 46

guide rollers

48

paper handling

d

swivel axis

Claims (18)

1. An apparatus for the manufacture of paper cushions from a paper web (13) rolled up to form a supply roll (12), wherein the apparatus has a machine (20) having a support apparatus (27, 28) for the rotatable support of the supply roll (12), a shaping device (22) for the shaping of the paper web (13) and an apparatus (24) for the manufacture of the paper cushions, wherein
   the machine (20) has at least one coupling element (29) via which a transport trolley (10) provided with at least one coupling element (16) matching it is releasably coupled to the machine (20), characterized in that the supply roll (12) is able to be supported on the transport trolley such that it can be placed into the support apparatus (27, 28) of the machine (20) by a rolling and/or sliding movement when the transport trolley (10) is coupled to the machine (20); and
   in that the transport trolley (10) has an actuation pedal (32) which is operatively connected to the coupling element (16) of the transport trolley (10) such that an actuation of the actuation pedal (32) effects a movement of the coupling element (16).
2. An apparatus in accordance with claim 1, characterized in that the support apparatus (27, 28) is formed by two bearing plates (27) having support recesses (28) formed therein, with the bearing plates (27) in particular also forming lateral housing walls of the apparatus.
3. An apparatus in accordance with claim 1 or claim 2, characterized in that the transport trolley (10) has a framework (14) at which a platform (18) is fastened in a vertically adjustable manner and/or pivotably about a horizontal axis.
4. An apparatus in accordance with claim 3, characterized in that the platform (18) is fastened to the framework (14) in a self-supporting manner.
5. An apparatus in accordance with claim 3 or claim 4, characterized in that the platform (18) has a blocking element (19) at the side facing in the direction of the machine (20) when the transport trolley (10) is coupled to the machine (20), said blocking element being suitable to hold the supply roll (12) on the platform (18).
6. An apparatus in accordance with any one of the preceding claims, characterized in that a shaft (17) which projects laterally beyond the supply roll (12) and which can be inserted into the support apparatus (27, 28) at the machine (20) of the apparatus extends through the middle of the supply roll (12).
7. An apparatus in accordance with claim 6, characterized in that the shaft (17) projecting laterally beyond the supply roll (12) is a hollow shaft having slit-shaped cut-outs (35) at the lateral ends; and in that the support apparatus (27, 28) has upwardly projecting elements, in particular screws (25), for security against rotation at the machine (20) of the apparatus which are seated in the slit-shaped cut-outs (35) when the shaft (17) is inserted into the support apparatus (27, 28).
8. An apparatus in accordance with any one of the preceding claims, characterized in that the coupling element (16) of the transport trolley (10) is movable between a latching position and a release position, with it being latchable in its latching position to the coupling element (29) provided at the machine (20) of the apparatus.
9. An apparatus in accordance with claim 8, characterized in that the coupling element of the transport trolley (10) includes a latch (16) which can be hung in its latching position into at least one recess (29) which is formed at the machine (20) and which forms a coupling element of the machine (20).
10. An apparatus in accordance with claim 9, characterized in that the latch is formed by a horizontally extending bar (16) whose latching position is beneath its release position and which can be hung in its latching position into at least two recesses (29) which are formed at the machine (20) and which form a coupling element of the machine (20).
11. An apparatus in accordance with any one of the preceding claims, characterized in that the machine (20) has a latch mount (26) which is downwardly chamfered in the direction of the transport trolley (10) and in which a recess (29) for the reception of a latch (16) is formed at the top.
12. A transport trolley (10) for an apparatus for the manufacture of paper cushions from a paper web (13) rolled up to form a supply roll (12), said transport trolley being provided with at least one coupling element (16) for the coupling of the transport trolley (10) to a machine (20) belonging to the apparatus, characterized in that the supply roll (12) can be supported on the transport trolley such that it can be placed into a support apparatus (27, 28) of the machine (20) by a rolling and/or sliding movement when the transport trolley (10) is coupled to the machine (20); and
    in that the transport trolley (10) has an actuation pedal (32) which is operatively connected to the coupling element (16) of the transport trolley (10) such that an actuation of the actuation pedal (32) effects a movement of the coupling element (16).
13. A transport trolley (10) in accordance with claim 12, characterized in that it has a framework (14) to which a platform (18) is fastened in a vertically adjustable manner and/or pivotably about a horizontal axis.
14. A transport trolley (10) in accordance with claim 13, characterized in that the platform (18) is fastened to the framework (14) in a self-supporting manner.
15. A transport trolley (10) in accordance with claim 13 or claim 14, characterized in that the platform (18) has a blocking element (19) at the side facing in the direction of the machine (20) when the transport trolley (10) is coupled to the machine (20), said blocking element being suitable to hold the supply roll (12) on the platform (18).
16. A transport trolley (10) in accordance with any one of the claims 12 to 15, characterized in that the coupling element (16) of the transport trolley (10) is movable between a latching position and a release position.
17. A transport trolley (10) in accordance with any one of the claims 12 to 16, characterized in that the coupling element of the transport trolley (10) comprises a latch (16).
18. A transport trolley (10) in accordance with claim 17, characterized in that the latch is formed by a horizontally extending bar (16) whose latching position is beneath its release position.

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