EP3318398A1 - Device for manufacturing containers - Google Patents

Abstract

Device for producing finished articles from a strip-shaped material (9) having a feed region (3), a pressing region (4) and a stacking region (5), which are arranged side by side in a common frame (2) in the longitudinal direction. In the feed region (3) a winding (8) of the band-shaped material (9) is rotatably storable, wherein the unwound material (9) via a guide roller (17) the gap between two conveyor rollers (29) and of these directly to the pressing area ( 4) is supplied. The pressing region (4) has a first movable mold-holding part (20) and a second, stationary mold-holding part (27) which are movable toward one another and away from one another by a drive. The unwound belt-shaped material (9) is movable from the conveyor rollers (29) directly between the first and second mold holding parts (20, 27) to sequentially form and release mold parts (18, 19) mounted on the mold holding parts (20, 27) of the finished article to be moved. The manufactured finished articles are successively moved directly from the pressing area (4) in the stacking area (5) and stacked in this.

Description

The invention relates to a device for producing finished articles, such as containers or shells made of a band-shaped material.

Usually, finished articles, for example in the form of food packaging trays, are produced with the aid of presses operated by crankshaft drives. In this case, self-contained units, such as an unwinding unit for supplying a band-shaped material; a press unit for pressing the finished articles from the strip-shaped material and a stacking unit for collecting and stacking the manufactured finished articles along a production line placed one behind the other. For example, the band-shaped material is made of aluminum.

In the EP 2274159 B1 such a device is described. In essence, this device comprises a feed unit, in which the band-shaped material is unwound from a spool. The unwound strip-shaped material is subsequently supplied stepwise to a pressing unit, in which it is passed between an upper molding and a lower molding. The upper mold part and the lower mold part, when pressed against each other, form therebetween a cavity which corresponds in terms of its shape and size to the finished article to be produced. During the pressing process, the upper mold part is moved with the aid of a threaded mechanism operated by an electric motor in the direction of the stationary lower molded part. The pressed finished articles are then removed from the press unit by a removal device and subsequently fed to a stacking unit and stacked. The feed unit, the pressing unit, the removal device and the stacking unit are arranged as separate units along a production line in the order named in the longitudinal direction one behind the other.

The object of the present invention is to improve a known device of the aforementioned type so that it is relatively easy and inexpensive to handle.

To solve this problem, the device according to the invention comprises a feed region, a pressing region and a stack region, which are arranged next to one another in a common frame in the longitudinal direction. In the feed region, a winding of the band-shaped material in the frame is rotatably storable, wherein preferably mounted on an arm Abwickelrad on the surface of the roll can be arranged and driven by a drive to set the winding in rotation and tape-shaped material from the winding handle. The arm part is rotatably mounted in the frame about a pivot point spaced from the drive. The unwound from the winding material is fed to the gap between two arranged in the frame conveyor rollers and these directly to the pressing area. The pressing region comprises a first shape-retaining part movably arranged in the frame and a second shape-retaining part fixedly mounted in the frame, which are movable toward one another into a closing position and away from one another into a release position by a drive. The unwound strip-like material is moved by the conveyor rollers directly between molded parts for producing and releasing the finished article mounted on the mold holding parts, wherein the mold parts are successively moved between the closing and the releasing position. The manufactured finished articles are successively moved from the pressing area directly into the stacking area and stacked in this.

The essential advantage of the present invention is that the present device for producing finished articles from a strip-shaped material is formed as a compact unit, which has an unwinding area, in which the strip-shaped material is unwound from a reel, a press area in which the finished articles are pressed from the band-shaped material and comprises a stacking area, in which the finished articles produced successively in the pressing area are stacked. It is essential that the said areas in a common housing or

Frame arranged directly next to each other and functional and constructive to a narrow or small-sized, compact unit are summarized.

Advantageously, the fact that the unwinding area, the pressing area and the stacking area are arranged as a compact unit in a common frame substantially reduces the production costs of the device according to the invention.

Since the present invention is formed as a compact unit having a relatively small footprint, installation of the equipment in a factory floor or the like requires a much smaller area than the conventional apparatuses. This leads to significant cost savings.

Since the present unit has a relatively low weight, it can be relatively easily moved and transported inexpensively. A faster air transport compared to a ship transport is therefore also possible.

Another significant advantage of the present invention is that the present unit compacting device for pressing finished articles can be easily controlled by a single operator, whereas in the known device explained in the introduction, the separate device is separate from each other along a production line Units for unwinding, pressing and stacking are arranged side by side, several operators are required.

Because the unwinding wheel arranged on an arm part is arranged above the reel, a particularly space-saving arrangement of the individual parts (reel, arm part, unwinding wheel, drive, conveying rollers) of the unwinding area results in the longitudinal and transverse direction as well as in the height of the present device.

Particularly advantageous, because simple and compact, is an embodiment of the present invention, wherein in the unwinding of the frame, a guide surface between one, the winding downstream and on the frame fixed guide roller and the conveyor rollers is arranged to guide the band-shaped material from the guide roller to the gap between the conveyor rollers, wherein the guide surface is located above the arm part.

Advantageously, in a further development of the invention, the winding is arranged on a spool, the shaft of which is mounted in receiving parts which are opposite one another in the transverse direction and which are arranged on opposite regions of the frame. If necessary, therefore, different coils with different band-shaped materials for the production of different finished articles can be replaced quickly and easily.

In an advantageous development of the invention, the finished articles produced in the pressing area are successively fed to the stack area and stacked on a conveyor table arranged in the frame. Preferably, the conveyor table is designed to be height adjustable. Its position can therefore be adapted during the stacking process to the respective stacking height of the finished article.

The waste material arising from the web-shaped material during pressing is conveyed advantageously via a guide shaft into a waste collection container which is arranged in the stacking area below the conveyor table, wherein the guide shaft is formed in the frame between the pressing region and the stacking region and therefore occupies little space. In this way, the waste produced during pressing is ready for quick and easy disposal. In an advantageous embodiment of the invention, the guide shaft comprises a first leg region extending from the pressing region and a second leg region, which are connected to one another in a corner region, the first leg region starting from the pressing region and the second leg region ending above the waste collecting container. In the corner region, a nozzle arrangement is arranged such that it sucks the waste produced during pressing from the pressing area into the first leg area to the corner area and pushes it out of the corner area into the second leg area. In this way - particularly integrated into the frame - a particularly fast and effective transport of the waste from the pressing area to the waste container is achieved.

In order to make the present device particularly compact, the electronics for controlling the device in the frame, preferably arranged on a panel mounted in the frame under the pressing area panel.

Particularly advantageous, simple, lightweight and compact is in the pressing region of the device according to the invention, the upper mold holding part attached to each transversely opposite side of the frame on opposite sides of two spaced apart longitudinally spaced, parallel drive belt, the drive belts each between two pulleys, which are seen in the direction of movement of the upper mold holding member rotatably mounted one above the other in the frame or arranged and wherein the drive belt can be driven by at least one arranged on the frame drive motor. Particularly preferably, the respectively opposite in the transverse direction pulleys are arranged on a common, mounted in the frame shaft, wherein in each case a shaft of a belt pair is driven by a drive motor.

• Figur 1 eine Ausführungsform der erfindungsgemäßen Einrichtung zur Herstellung von Fertigartikeln in perspektivischer Darstellung;
• Figur 2 einen Längsschnitt durch die erfindungsgemäße Einrichtung der Figur 1
• Figur 3 eine Seitenansicht der erfindungsgemäßen Einrichtung,
• und
• Figur 4 eine Ansicht der erfindungsgemäßen Einrichtung von oben.

In the following the invention and its embodiments will be explained in connection with the figures. Show it:

• FIG. 1 an embodiment of the device according to the invention for the production of finished articles in a perspective view;
• FIG. 2 a longitudinal section through the inventive device of FIG. 1
• FIG. 3 a side view of the device according to the invention,
• and
• FIG. 4 a view of the device according to the invention from above.

According to the FIGS. 1 to 4 includes the present device 1 for the production of finished articles, in particular of containers or trays, for example for receiving fruit or the like, in a housing or frame 2 directly in Along a longitudinal direction, a feed region 3, a pressing region 4 and a stacking region 5.

In the feed region 3, a coil 6 is mounted on a shaft 7, wherein the coil 6 is a winding 8 of the strip-shaped material 9 (FIG. FIG. 3 ) includes or carries. The spool 6 with the winding 8 is rotated by a Abwickelrad 10 which abuts the surface of the coil 8 and is rotated by an electric drive 11 in rotation. In this case, the unwinding wheel 10 is preferably located at an end region of an arm part 12 which is pivotable about a pivot point 13 (FIG. FIG. 3 ) is rotatable at its other end portion. In this case, the unwinding wheel 10 rests on the surface of the reel 8, so that the reel 8 is set in rotation in the direction of the arrow 15. On the frame 2, a drive motor 11 is arranged, which drives the drive wheel via a gear mechanism 39.

The coil 8 carrying the winding 8 can be used with its shaft 7 in a simple manner, preferably in upwardly opening troughs 15 of two receiving parts 14, which are mounted in the transverse direction opposite to the frame members 16, 16 and the frame 2. Expediently, the unwinding wheel 10 is a wheel whose surface is gummed or provided with another anti-slip covering in order to transmit its rotation to the reel 8 in a particularly effective and slip-resistant manner.

The frame 2 preferably comprises, as already mentioned, two mutually perpendicular to the longitudinal axis spaced and transversely interconnected, parallel frame members 16 to which all relevant elements of the present device 1 are attached.

The unwound from the winding 8 strip material expediently extends over a rotatable guide roller 17, which is also secured to the frame members 16. Above the arm part 12, a guide surface 30 is preferably arranged on the frame 2, via which the web-shaped material 9 is guided to two conveyor rollers 29, 29 arranged one above the other. The plate-shaped configured guide surface 30 may be from the FIG. 4 have apparent recesses or openings 40 to an undesirable adhesion of the band-shaped Prevent material 9. Preferably, one of the conveyor rollers 29, z. B. the lower roller, fixed to the frame 2, while the other, in the example, the upper conveyor roller 29 is vertically movably mounted on the frame 2, so that they can exert a predetermined pressure on the introduced into the gap between the conveyor rollers web-like material. The targeted application of pressure is preferably carried out by a piston / cylinder arrangement 32 arranged on the frame 2.

An undesirable sagging of the band-shaped material 9 down can be prevented by appropriate control of the conveyor rollers 29 with a signal generated by a sensor 2 arranged on the frame 31.

For an accurate, fast and error-free operation of the present device 1, the positioning of the conveyor rollers 29,29 in the immediate vicinity of the pressing portion 4 of considerable importance. Only by this proximity, an exact, wave-free feeding of the sheet material directly into the pressing area 4 and to the mold parts 18, 19 is possible according to the invention.

The press area 4 comprises vertically arranged one above the other a stationary lower mold holding part 27 fastened to the frame 2 and an upper mold holding part 20 movably mounted on the frame 2. An upper mold part 19 can be fastened to the upper mold holding part 20, while a lower mold part 18 is attached to the lower mold holding part 27 is fastened. In this way it is achieved that for the production of individual finished articles respectively required moldings 19 can be mounted on the mold holding part 20 and 18 on the mold holding part 27.

For vertical movement of the mold holding part 20 are in the particular from the FIG. 1 apparent manner four drive belts 21 are preferably provided, wherein viewed in the transverse direction opposite each other and in the longitudinal direction spaced from each other two pairs of drive belt 21 are provided. In each case, a drive belt 21 extends at one end, that is to say above and below, around a belt wheel 22 which is rotatably mounted on the frame 2 or on a frame part 16. In the FIG. 1 the drive belt 21 and the belt wheels 22 are partially shown only schematically. In this case, the respective upper and lower pulleys 22 which are respectively opposite in the transverse direction are preferably located in each case a shaft 23 which is mounted between the frame members 16 opposite each other in the transverse direction. Preferably, a shaft 23 of an opposing belt pair is driven by a drive motor 24 which is fixed to the frame 2. At longitudinally opposite sides or at four corner regions, the mold holding part 20 is preferably fastened to the four drive belts 21, so that it can be moved vertically in the direction of the lower mold part 18 or away from it with a corresponding actuation of the drive motors 24. The web-shaped material 9 is passed from the conveyor rollers 19, 19 directly through the mold parts 19 and 20, so that from him during a movement of the upper mold part 20 against the lower mold part 19, a finished article can be produced.

In the frame 2 four guide rails 38 are preferably mounted, in which the mold holding part 20 is guided in its vertical movement. Conveniently, the four corner regions of the shape-retaining part 20 are guided in the guide rails 38, so that a particularly precise and play-free guidance of the shape-retaining part 20 is achieved. This is important for the quality of the manufactured finished articles.

Directly adjacent to the pressing region 4, the stacking region 5 is arranged, to which the finished articles produced in the pressing region 4 are fed successively and stacked one above the other. The stacking area 5 expediently comprises a conveyor table 34, on which the stacked finished articles are deposited and stacked. The conveyor table 34 is preferably designed as a lifting table, which can be lowered from a raised state, depending on the size or height of the stack arranged on it. The operator can then remove the stack on the conveyor table from this.

Below the conveyor table 25 is preferably a waste collection container 26, in which the waste produced during the pressing process in the pressing region 4 from the sheet material in each case is collected. In this case, the pressing region 4 is connected directly to the waste collecting container 26 via a guide shaft 32 formed in the frame 2. In the guide shaft 32, a nozzle assembly 33 is provided which generates a flow, which deducts the waste from the pressing region 4 and in the Waste bin 26 pushes or transported. Preferably, the guide shaft 32 is L-shaped or angular, wherein the one leg region 35 extends directly from the pressing region 4 horizontally to a corner region 36, in which the nozzle assembly 33 is arranged. Starting from the corner region 36, the other leg region 37 extends downwards over the waste collection container 26, so that the waste drawn off from the nozzle arrangement 33 via the first leg region 35 is conveyed via the corner region 36 into the leg region 37 and out of this into the waste collection container 26.

An advantage of the present device 1 is also that when pressing the finished article comparatively little waste is formed because the mold parts 18, 19 and the width of the web-shaped material 9 may each be coordinated so that the extrusion of material very close to the edge the band-shaped material 9 can take place.

Under the lower stationary mold holding part 27 is preferably a region in which the entire electronics required to control the device 1 is housed. For example, this electronics is located on a panel 28, which is easily accessible from the outside.

The finished articles produced with the present device 1 are preferably shell parts which are produced from a sheet-like aluminum foil unwound from the roll 8. Other web-shaped materials, such as plastic sheets or the like are conceivable.

Reference numerals:

1

Facility

2

frame

3

feeding

4

Press area

5

stacking area

6

Kitchen sink

7

wave

8th

reel

9

sheet material

10

Abwick elrad

11

electric drive

12

arm

13

pivot point

14

receiving part

15

arrow

16

frame part

17

leadership

18

lower molding

19

upper molding

20

upper mold holding part

21

drive belts

22

pulley

23

wave

24

drive motor

25

conveyor table

26

Waste container

27

lower mold holding part

28

panel

29

conveyor roller

30

guide surface

31

sensor

32

guide shaft

33

nozzle assembly

34

conveyor table

35

leg region

36

corner

37

leg region

38

guide rail

39

transmission mechanism

40

openings

Claims (12)

Device for producing finished articles from a band-shaped material (9) having a feed region (3), a pressing region (4) and a stacking region (5) arranged side by side in a common frame (2),
wherein in the feed region (3) a winding (8) of the band-shaped material (9) in the frame (2) is rotatably storable, wherein the winding (9) unwound material (9) the gap between two in the frame (2) arranged conveying rollers (29) and from these directly to the pressing region (4) is fed, wherein
the pressing region (4) has a first shape-holding part (20) movably arranged in the frame (2) and a second shape-holding part (27) fixedly mounted in the frame, which are movable towards and away from each other by a drive such that the unwound band-shaped material (9) from the conveyor rollers (29) directly between the mold holding parts (20, 27) mounted moldings for the manufacture and release of the finished article is movable, wherein the mold parts are moved sequentially between a closed and a release position, and
wherein the manufactured finished articles are successively moved directly from the pressing region (4) into the stacking region (5) and stacked therein. Device according to claim 1, characterized in that in the feed region (3) an unwinding wheel (10) mounted on an arm part (12) can be arranged on the surface of the reel (8) and can be driven by a drive (11) to move the reel (8 ) and to unwind strip-shaped material (9) from the reel (8), wherein the arm part (12) is pivotably mounted in the frame (2) about a pivot point (13) spaced from the drive (11), Device according to claim 1 or 2, characterized in that in the frame (2) in Abwickelbereich (3) a guide surface (30) between a guide roller attached to the frame (17) and the conveyor rollers (19, 19) is arranged to the band-shaped material (9) from the guide roller (17) to the gap between the conveyor rollers (29, 29), wherein the guide surface (30) over the arm part (12). Device according to claims 1 to 3, characterized in that the winding (8) is located on a spool (6) whose shaft (7) is mounted in receiving parts (14) which are opposite in the transverse direction and which are at opposite areas of the frame (2) are arranged. Device according to one of Claims 1 to 4, characterized in that the finished articles produced in the pressing region (4) are fed in succession to the stacking region (5) and can be stacked on a conveyor table (25) which is height-adjustable in the frame (2). Device according to claim 5, characterized in that the waste material arising from the web-like material (9) is conveyed via a guide shaft (32) into a refuse receptacle (26) arranged in the stacking area (5) below the conveyor table (25) is, wherein the guide shaft (32) in the frame (2) in the transition region between the pressing region (4) and the stacking region (5) is formed. Device according to Claim 6, characterized in that the guide shaft (32) comprises a first leg region (35) originating from the pressing region and a second leg region (37) which are interconnected in a corner region (36), the first leg region being from the pressing region (4) and the second leg region (37) ends above the waste collection container (26), and that in the corner region (36) a nozzle assembly (33) is arranged such that it from the pressing area (4) in the first leg portion (36) sucks to the corner region (35) and from the Corner area (36) in the second leg portion (37) presses. Device according to one of claims 1 to 7, characterized in that under the pressing area (4), the electronics for controlling the device (1) in the frame (2), preferably on a frame (2) mounted panel (28) is arranged , Device according to one of claims 1 to 8, characterized in that in the pressing region (4) the upper mold holding part (20) on each opposite in the transverse direction side of the frame (2) on opposite sides of two longitudinally spaced apart, parallel drive belts ( 23), the drive belts (23) each extending between two pulleys (22), which are seen in the direction of movement of the upper mold holding member (20) rotatably mounted one above the other in the frame (2), and wherein the drive belts through at least one of the frame (2) arranged drive motor (24) are drivable. Device according to claim 9, characterized in that in the transverse direction in each case opposite belt wheels (2) are mounted on a common shaft (23), wherein in each case a shaft (23) of a belt pair by the drive motor (24) can be driven. Device according to one of claims 1 to 10, characterized in that the upper mold holding part (20) is guided in its movement in guide rails (38) which are fixed to the frame. Device according to claim 11, characterized in that four guide rails (38) are arranged on the frame (2), of which one each leads to a corner region of the upper mold holding part (20).

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