Method and a device for changing carrier units with flat packaging material wound on supply rolls within a packaging machine
09573713 ยท 2017-02-21
Assignee
Inventors
Cpc classification
B65H19/123
PERFORMING OPERATIONS; TRANSPORTING
B65H2301/4172
PERFORMING OPERATIONS; TRANSPORTING
B65B21/245
PERFORMING OPERATIONS; TRANSPORTING
B65H19/1873
PERFORMING OPERATIONS; TRANSPORTING
B65H2301/46115
PERFORMING OPERATIONS; TRANSPORTING
B65H19/18
PERFORMING OPERATIONS; TRANSPORTING
B65H19/12
PERFORMING OPERATIONS; TRANSPORTING
International classification
B65H19/18
PERFORMING OPERATIONS; TRANSPORTING
B65H19/12
PERFORMING OPERATIONS; TRANSPORTING
Abstract
The invention comprises a method and a device for changing removable carrier units (8a, 8b) with flat packaging material (10) wound on supply rolls (9), in particular, packaging film (11) within a packaging machine (3), which is equipped with devices for at least partially wrapping piece goods, containers, article groups, etc., with flat packaging material (10). With the method removable carrier units (8a, 8b) with new supply rolls (9) are fed in a series one after the other to a work area (AB) of a handling device (5), the work area (AB) of which extends into at least one position of the operating position of the removable carrier unit (8a, 8b) arranged in the packaging machine (3), which is equipped with a supply roll (9), so that it replaces removable carrier units (8a, 8b) located in the packaging machine (3) and used up supply rolls (9) with new removable carrier units (8a, 8b) with in each case a new supply roll (9). Here respective removable carrier units (8a, 8b) are inserted alternately in at least two different installation positions of the packaging machine (3) and its flat packaging material (10) is connected with the packaging material still located in the packaging machine (3).
Claims
1. A system for changing removable carrier units (8a, 8b) with flat packaging material (10) wound on supply rolls (9) within a packaging machine (3), which is equipped with devices for at least partially wrapping articles with packaging material (10, 10) with a feeding device (4) for the provision of removable carrier units (8a, 8b) carrying new supply rolls (9) in a series one after the other, which is assigned to a work area (AB) of a handling device (5), which extends into at least one position of the operating position of the removable carrier unit (8a, 8b) equipped with a supply roll (9) which is arranged in the packaging machine (3), so that removable carrier units (8a, 8b) located in the packaging machine (3) with used up supply rolls (9) can be replaced with new removable carrier units (8a, 8b) with new supply rolls (9) by the handling device (5), the packaging machine (3) including at least two different installation positions (EB1, EB2) and a corresponding holding mandrel (15, 15) at each of the at least two different installation positions (EB1, EB2), wherein each of the holding mandrels (15, 15) are aligned to connect with a respective new supply roll (9) when the removable carrier unit (8a, 8b) carrying the respective new supply roll (9) is inserted into the corresponding installation position (EB1, EB2), wherein the handling device (5) is configured to alternatively insert the respective new removable carrier units (8a, 8b) with the respective new supply roll (9) at the at least two different installation positions (EB1, EB2) in the packaging machine (3) such that the flat packaging material (10) of the respective new supply roll (9) can be connected with the packaging material (10) still located in the packaging machine (3).
2. The system according to claim 1, in which the removable carrier units (8a, 8b) with new supply rolls (9) are respectively prepared for the at least two different installation positions (EB1, EB2) in the packaging machine (3) at the latest upon entry into the work area (AB) of the handling device (5).
3. The system according to claim 1, in which the removable carrier units (8a, 8b) are respectively formed by cassettes having a frame which is designed for the supportive holding of the respective new supply roll (9) with its flat packaging material (10).
4. The system according to claim 3, in which the cassettes in each case have a supporting bar (19, 19) extending parallel to the supply roll, which, before connecting with the packaging material (10) located in the packaging machine, carries a beginning of the flat packaging material (10) wound on the new supply roll (9) of the respective cassette.
5. The system according to claim 4, in which the supporting bars (19, 19) of the cassettes are designed rotatable, so that flat packaging material (10) of the respective new supply roll (9) can be wound on the supporting bar (19, 19) of the respective cassette.
6. The system according to claim 3, wherein the packaging machine (3) has at least one first installation position (EB1) for first removable carrier units (8a) and at least one second installation position (EB2) for second removable carrier units (8b), which supporting bars (19, 19) of the first removable carrier units (8a) and the second removable carrier units (8b) are arranged on opposite sides, so that the supporting bars (19) of the first removable carrier units (8a) point in the direction of the second installation position (EB2) when inserted into the first installation position (EB1) and the supporting bars (19) of the second removable carrier units (8b) point in the direction of the first installation position (EB1) when inserted into the second installation position (EB2).
7. The system according to claim 1, wherein each holding mandrel (15, 15) is designed to enlarge its cross-sectional diameter, so that by enlarging the cross-sectional diameter, the respective supply roll (9) can be fixed by clamping to the holding mandrel (15, 15).
8. The system according to claim 1, in which the handling device (5) is formed by a multiaxially movable handling robot (50), which both inserts new removable carrier units (8a, 8b) into the packaging machine (3) as well as removes removable carrier units (8a, 8b) and used up supply rolls (9) from it.
9. The system according to claim 1, comprising a discharge device (6) for removable carrier units (8a, 8b) removed by the handling device (5) from the packaging machine, wherein the discharge device (6) and the feeding device (4) are respectively formed by one or several horizontal conveyors (60, 40).
10. The system according to claim 1, wherein each removable carrier unit (8a, 8b) carries its corresponding new supply role (9) such that, when the supply role (9) is connected with the holding mandrel of the machine (3), the supply role (9) disengages contact with its removable carrier unit (8a, 8b) as the packaging material (1) is unwound.
Description
(1) In the following, embodiments should explain in detail the invention and its advantages by means of the attached figures. The proportions of the individual elements in relation to each other in the figures does not always correspond to the real proportions, since some forms are simplified and other forms are enlarged in proportion to other elements for better illustration.
(2)
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(8) For similar or similarly operating elements of the invention identical reference signs are used. Furthermore, for the sake of providing an overview only reference signs are presented in the individual figures, which are required for the description of the respective figure. The embodiments depicted constitute only examples of how the device according the present invention or the method according to the present invention can be arranged and do not represent a final limitation.
(9) The schematic perspective view of
(10) The packaging machine 3 comprises in practice several devices, which are designed for wrapping articles with the flat packaging material 11. For reasons of clarity the devices are not depicted in the figures of the present patent application.
(11) As can be seen from
(12) In addition, a handling device 5 is depicted, which is designed as a multi-axial movable handling robot 50 and possesses a work area AB, within which it can remove removable carrier units 8a and 8b from the horizontal conveyor 40 and can insert the respective removable carrier units 8a and 8b into one of the assigned installation positions EB1 or EB2 (see
(13) The feeding device 4 or the horizontal conveyor 40 extends into the work area AB of the handling device 5 and conveys removable carrier units 8a or 8b one after another into the work area AB.
(14) As can be seen in
(15) In addition,
(16) In order to be able to receive the respective removable carrier units 8a or 8b from the horizontal conveyor 40 and to insert them into the respective installation position EB1 or EB2, the handling device 5 designed as a handling robot 50 is rotatable about a vertical axis V. The freedom of movement of an exemplary handling device 5, as it is also used in
(17) In addition, the work area AB of the handling device 5 is designed such that the handling device 5 can remove used up supply rolls 9 without packaging film 11 from the packaging machine 3.
(18) If a removable carrier unit 8a or 8b with new supply roll 9 is inserted into the respective installation position EB1 or EB2 of the packaging machine 3, then the new supply roll 9 is placed on a holding mandrel 15 or 15 (see
(19) After a certain share of packaging film 11 has been unwound from the new supply roll 9 in the packaging machine 3, the respective new supply roll 9 is no longer in surface contact with the respective removable carrier unit 8a or 8b. After that the respective removable carrier unit 8a or 8b assigned to the new supply roll 9 can be removed by the handling device 5 from the packaging machine 3. Advantageously, the new supply roll 9 is here fixed via the respective holding mandrel 15 or 15 shown in
(20) Since the work area AB of the handling device 5 extends into the positions of the operation position of removable carrier units 8a or 8b, the handling device 5 or the handling robot 50 can remove removable carrier units 8a or 8b from the packaging machine 3. If a removable carrier unit 8a or 8b was removed from the packaging machine 3, then the respective removable carrier unit 8a or 8b can be put down by the handling device 5 on the discharge device 6 or on the horizontal conveyor 60.
(21) The discharge device 6 or the horizontal conveyor 60 possesses a transport direction TR2 for the removable carrier units 8a or 8b, which runs parallel to the transport direction of the feeding device 6 designed as a horizontal conveyor 60. The discharge device 6 leads the removable carrier units 8a or 8b in the direction of an equipment section 17 (see
(22) As can be seen in
(23) As can also be clearly seen in
(24) Since the removal of first and second removable carrier units 8a or 8b from the packaging machine 3 also occurs alternately, the removable carrier units 8a or 8b are also arranged alternately on the discharge device 6 or the removable carrier units 8a or 8b are transported away alternately by the discharge device 6.
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(26) In addition, a schematic top view of the embodiment of a device 1 from
(27)
(28) After insertion of the respective removable carrier units 8a or 8b with new supply rolls 9 a holding mandrel 15 or 15 grasps through the respective supply roll 9 which cannot be seen in
(29) In addition,
(30) In addition, the reference number 23 refers to an actuating element for a welding bar not depicted in
(31) By means of an enlargement of the cross-sectional diameter of the holding mandrel 15 the supply roll 9 can be held by clamping in the first installation position EB1, whereupon the removable carrier unit 8a or the magazine 8a is removed from the first installation position EB1 and is set down on the discharge device 6 by means of the handling device 5 or the handling robot 50 (see
(32) After the packaging film 11 was separated from the supply roll 9 arranged in the second installation position EB2 and after the removable carrier unit 8a or the magazine 8a was removed from the first installation position EB1, by means of the handling device 5 the supply roll 9 of the second installation position EB2 was removed from the holding mandrel 15 and by means of the handling device 5 set down in a storage module 13 (see
(33) A second removable carrier unit 8b with new supply roll 9 can then be placed by means of the handling device 5 into the second installation position EB2. The insertion of a removable carrier unit 8a or 8b thus occurs, while packaging film 11 or 11 is unwound from a supply roll 9 of the first installation position EB1 or the second installation position EB2. Thus, during the uninterrupted operation of the packaging machine 3 a supply roll 9 is arranged permanently at one of the two installation positions EB1 or EB2, from which packaging film 11 or 11 is unwound.
(34) The removable carrier units 8a and 8b are in each case designed as cassettes, which have a frame, which is designed for supportive holding of the respective new supply roll 9 and its packaging film 11. The frame has two bore holes 25 and 25, into which gripper fingers 31 (see
(35) In addition, the removable carrier units 8a and 8b possess in each case main pillars 27 and 27, by means of which they stand up on the feeding device 4 or on the horizontal conveyor 40 as well as on the packaging machine 3 in the respective installation position EB1 or EB2. Furthermore, in each case they possess a block 33, at which the respective supply roll 9 lines up via its packaging film 11 on the respective removable carrier unit 8a or 8b. Advantageously the respective supply roll 9 can be held laterally via the block, so that a lateral slipping of the supply roll 9 off of the removable carrier unit 8a or 8b is prevented particularly during insertion into the respective installation position EB1 or EB2.
(36) In addition, the supporting bar 19 is depicted, which carries a beginning of the packaging film 11 before vertical lowering of the guide element 29. If the removable carrier unit 8a or 8b is located in the respective installation position EB1 or EB2, the supporting bar 19 or 19 is oriented parallel to the holding mandrel 15 or 15. The supporting bar 19 or 19 is connected to a wheel 35, via which the supporting bar 19 or 19 can be moved in a rotary manner. With rotation of the supporting bar 19 or 19 the packaging film 11 is wound up on the supporting bar 19 or 19.
(37) If the packaging film 11 has optical markings, a connection to the packaging film 11 still remaining in the packaging machine 3 at defined locations can be desirable. For the position specification for the welding the packaging film is wound up via the wheel 35 on the supporting bar 19. In the present case the wheel 35 is actuated manually, in other embodiments an actuation by machine is conceivable with position specification of the packaging film 11 or of the packaging material 10 for the welding. Advantageously the position specification of the packaging film 11 for the welding already occurs before placing the respective removable carrier unit 8a or 8b on the feeding device 4, however, at latest before the entry of the respective removable carrier unit 8a or 8b in the work area AB (see
(38) In the first removable carrier units 8a, as shown in
(39) In addition, the supporting bars 19 or 19 pass by the flat packaging material 10 or the packaging film 11 underneath the guide element 29 on the guide element 29, so that by means of its vertical movement downwards the guide element 29 can come into contact with the respective packaging film 11 and for the purpose of its welding guide the packaging film 11 with the guide element 29 downwards and towards the packaging film 11 still remaining in the packaging machine 3 or towards the flat packaging material 10 still remaining in the packaging machine 3.
(40)
(41) Analogous to
(42) In addition,
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(44) In addition, as can be seen in
(45) In addition, a gripper hand 41 is arranged on its free end 38, which is provided for the receipt of used up supply rolls 9 from the respective installation position EB1 or EB2. The gripper hand 41 is also designed rotatable about a fourth horizontal axis H4. The fourth horizontal axis H4 runs perpendicular to the third horizontal axis H3.
(46) By means of the handling device 5 depicted by way of example in
(47) The invention was described by reference to a preferred embodiment. However, it is conceivable for a person skilled in the art, that variations or modifications of the invention can be made, without thereby departing from the scope of the following claims.
LIST OF REFERENCE SIGNS
(48) 1 device 3 packaging machine 4 feeding device 5 handling device 6 discharge device 8a first removable carrier unit 8b second removable carrier unit 8a first removable carrier unit 8b second removable carrier unit 9 supply roll 9 used up supply roll 10 flat packaging material 11 packaging film 12 support rod 13 storage module 15 holding mandrel 17 equipment section 19 supporting bar 20 guide element 21 preparatory instrument 23 actuating element 25 bore holes 27 main pillars 29 guide element 31 gripper finger 33 block 35 wheel 38 arm 39 gripping head 40 horizontal conveyor 41 gripper hand 50 handling robot 60 horizontal conveyor 61 segment AB work area EB1 first installation position EB2 second installation position H axis S control unit TR1 transport direction of the feeding device TR2 transport direction of the discharge device V axis