EP3770072A1 - Dispositif de vidage de sacs - Google Patents

Dispositif de vidage de sacs Download PDF

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Publication number
EP3770072A1
EP3770072A1 EP20187436.9A EP20187436A EP3770072A1 EP 3770072 A1 EP3770072 A1 EP 3770072A1 EP 20187436 A EP20187436 A EP 20187436A EP 3770072 A1 EP3770072 A1 EP 3770072A1
Authority
EP
European Patent Office
Prior art keywords
tubular elements
sack
emptying
connectors
sacks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20187436.9A
Other languages
German (de)
English (en)
Inventor
Dominik BARANSKI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Muehsam Rozwiazania Dla Przemyslu SpJ
Original Assignee
Muehsam Rozwiazania Dla Przemyslu SpJ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Muehsam Rozwiazania Dla Przemyslu SpJ filed Critical Muehsam Rozwiazania Dla Przemyslu SpJ
Publication of EP3770072A1 publication Critical patent/EP3770072A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0008—Opening and emptying bags

Definitions

  • the subject of the invention is a sack emptying device, which is used in those industries where raw materials are delivered in sacks that require emptying.
  • the subject of the invention can be used in the chemical, pharmaceutical or plastics industries.
  • devices for emptying sacks containing bulk materials which devices are often in the form of automated processing lines or in the form of devices which support workers performing activities related to emptying the sacks.
  • the devices collect the sacks from the pallets on which they are delivered, empty them and return empty packages.
  • US 5,613,824 discloses a compact device for automatically opening and emptying sacks of free-flowing raw materials.
  • the device is provided with a housing having an input opening for filled sacks and an output opening for empty packages. Behind the input opening in the device, there is a support plate for the sack introduced into the device, which forms a trough on which the sack slides until the sack rests on a proper support, on which it is positioned vertically. In such an arrangement of the sack, devices for its emptying are activated.
  • the device is provided with a penetrator which has a hollow form with a sharp end and which pierces the sack.
  • the device In addition, in the area directly above the actual support there is a blade which cuts the sack as soon as it is pierced by the penetrator. Then, in the device, the actual sack support, while rotating, is withdrawn from under the sack, which remains suspended on the penetrator. Thus, the sack is emptied and its contents are directed to the charging hopper. Additionally, during the emptying operation, high pressure air is introduced into the sack through the penetrator, which supports the sack emptying process. The device also has an additional high-pressure air nozzle, directed at the sack to be emptied and pulsating while emptying the sack. This results in the sack shaking, which further supports its emptying. Moreover, the device has a dust collector above the sack emptying devices to collect bulk material particles and reduce dust. The device is also provided with a pusher to guide the emptied sack to the output opening.
  • PL / EP 1838582 T3 discloses devices forming a processing line for automatic emptying of sacks.
  • the process line is formed by the interconnected gripping unit and emptying unit.
  • the gripping unit using curved grippers, transfers the full bags from a stack or pallets to the emptying unit, where they are cut and emptied, after which the gripping unit again removes empty packages.
  • the emptying unit has rods and associated with them rotating blades.
  • the sacks supported by the gripping unit are slit and then moved by poles entering the previously made slits.
  • the bars help to tear the packages and support emptying the sacks.
  • the contents of the sacks are directed to the receiver located under the bars and blades.
  • the emptying device may have horizontally sliding bars, which is achieved by mounting bars on a frame which is eccentrically connected to the driven wheel. Then the cut residues of the sacks are in contact with the adjacent, moving bars and by their movement are tilted in opposite directions. In this way, vigorous shaking can be realized whereby the residual material in the sacks is removed.
  • the object of the invention is to solve the problem of time-consuming and relatively inaccurate emptying of the sacks containing bulk material which occurs when emptying the sacks using both the devices intended for this purpose and when emptying the sacks by workers.
  • the invention relates to a sack emptying device comprising longitudinal tubular elements arranged parallel to one another, pivotally mounted in a frame and eccentrically connected to the drive.
  • the essence of the invention consists in the fact that the pipe elements have individual connections for a pneumatic conduit, and along the length of these pipe elements, through holes are provided in the walls of said elements, the holes being directed towards the working space of the device above the pipe elements, the adjacent pipe elements at their ends are connected to each other with connectors to form sets, and the connectors are provided with axles mounted in the frame, and the axles of the connectors at one end of said sets of tubular elements are eccentrically connected to the drive.
  • a single set comprises two tubular elements.
  • the main advantage of the invention resulting from combining the tubular elements into sets having connections for a pneumatic conduit, and thus, as a result, purging through the sacks being emptied of the bulk contents, is a significant improvement in the accuracy and efficiency of emptying these sacks. Achievement of said advantages is caused in particular by the combination of shaking the emptied sacks due to the movement of the tubular elements with the simultaneous directed blowing of air. This improves the efficiency of emptying the sacks and allows the sacks to be emptied even from the residues of bulk materials that adhere to the inner surface of the sack. Additionally, the design of the sack emptying device is simple, which allows the device to be implemented in the existing sack emptying installations to streamline and increase the efficiency thereof.
  • the device can also be installed without major difficulties on existing charging hoppers and similar devices through which bulk materials are directed for further processing.
  • the greatest benefits can be appreciated because the use of the device reduces the amount of human work required to empty the sacks, which also translates into a significant improvement in efficiency.
  • Fig. 1 shows the sack emptying device in perspective view
  • Fig. 2 presents sectional view of a tubular element
  • Fig. 3 shows top view of the sack emptying device
  • Figure 4 presents a partial exploded view of the sack emptying device
  • Figure 5 shows the view of the sack emptying device from the side of the drive.
  • Device 1 for emptying sacks with bulk material comprises longitudinal tubular elements 2 which are arranged parallel to each other and are pivotally mounted in the two-part frame 3 and which are eccentrically connected to the drive 4.
  • the two-part frame 3 has mounting holes allowing for it to be securely attached to, for example, a bulk product charging hopper.
  • the tubular elements 2 define the working space of the device 1 to which the cut sacks with bulk material go, so that a charging hopper for the loose products is located below them.
  • Each individual tubular element 2 has an individual, thereto assigned, connection 5 for pneumatic conduit, not shown on the drawing. Air is supplied through the pneumatic conduit at the appropriate pressure and in a suitably programmed sequence. Also, in each tubular element, through holes 6 are provided, which point towards the working space of the device 1 defined above the tubular elements 2. The through holes 6 are thus directed only towards the sacks being emptied. Preferably, the through holes 6 have a diameter of, for example, 2.5 mm and are uniformly distributed over the entire length of each tubular element 2, for example every 25 mm.
  • the sets 7 are formed by joining the tubular elements 2 at both ends with connectors 8, the connectors 8 being provided with axles 9, 10 by means of which the sets 7 are pivotally mounted in the frame 3.
  • the axles 9, 10 have a base through which they are rigidly connected with the connectors 8. However, depending on the connection side, the axes 9, 10 differ in length.
  • axles 9 On the side of the drive, are fastened to the connectors are axles 9 which have a length that allows for swivel mounting in the through holes of the frame 3 and allowing for attaching the drive elements 4 to them.
  • axles 10 having a length that allows only for pivoting mounting in the through-holes of the frame 3, consequently the axles 10 are shorter than the axles 9.
  • the pivoting mounting of the axles 9, 10 in the frame 3 involves use of self-aligning bearings 11, so that the sets 7 do not fully rotate, but only oscillate, similarly to rocking, so that during operation alternately rise tubular elements 2 forming the set 7, once one and then the other.
  • the axles 9 are fixed in the frame 3 with the use of self-aligning bearings 11 and protected by Seger rings 12.
  • the drive 4 in form of a motor is mounted on an intermediate plate 14 having mounting holes and enabling mounting of the motor in a location convenient for the end user.
  • the second shaped flange 15 is mounted on the drive shaft of the motor.
  • the first shaped flanges 13 and the second shaped flange 15 are connected to each other by rigid ties 16, which are fastened in the shaped flanges 13, 15.
  • the shaped flanges 13, 15 themselves provide an eccentric connection of the axis 9 with the drive 4, which is another feature that allows for the swinging movements of the sets 7.
  • the actuated drive 4 sets in motion three sets 7, each of which consists of two tubular elements 2.
  • the sets 7 make oscillating movements, similar to rocking, so that during operation alternately rise the tubular elements 2 forming the set 7, once one and then the other. Due to the swinging movements of the sets 7, the emptied sacks located in the working space of the device 1 are shaken. At the same time, during the swinging movements of the sets 7, air is supplied to the tubular elements 2 via connectors 5, under a pressure of 6 bar. It is obvious that the amount of the supplied air pressure is adjustable. The control of the air pressure and its supply is carried out by means of the solenoid valves and the operator panel of the device.
  • the air is supplied alternately to the tubular elements 2 forming the sets 7, so that it flows through the tubular element 2 at the time when it is raised and the air flow through the lowered tubular element 2 is stopped.
  • Controlling the air flow through the tubular elements 2 allows the sacks to be effectively emptied, including efficiently cleaning the sacks from residues of the material.
  • the efficiency of the device is also influenced by the oscillating movements of the sets 7, causing irregular movements of the previously cut sack elements, and thus their much more efficient emptying.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Bag Frames (AREA)
EP20187436.9A 2019-07-25 2020-07-23 Dispositif de vidage de sacs Withdrawn EP3770072A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL430714A PL239201B1 (pl) 2019-07-25 2019-07-25 Urządzenie do opróżniania worków

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PL430714A Previously-Filed-Application PL239201B1 (pl) 2019-07-25 2019-07-25 Urządzenie do opróżniania worków

Publications (1)

Publication Number Publication Date
EP3770072A1 true EP3770072A1 (fr) 2021-01-27

Family

ID=72050646

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20187436.9A Withdrawn EP3770072A1 (fr) 2019-07-25 2020-07-23 Dispositif de vidage de sacs

Country Status (2)

Country Link
EP (1) EP3770072A1 (fr)
PL (1) PL239201B1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE425965B (sv) * 1978-09-05 1982-11-29 Kopo Tement Ab Secktomningsanordning innefattande ett vikbart tvadelat uppleggningsbord
JPS60183331A (ja) * 1984-02-24 1985-09-18 株式会社尾上機械 袋詰内容物の排出装置
US5613824A (en) 1995-03-23 1997-03-25 Tsukasa Industry Co., Ltd. Automatic bag opening device
EP1838582A1 (fr) 2004-10-19 2007-10-03 Ayal Robotics and Engineering Ltd. Appareil permettant de vider automatiquement des sacs
EP3070014A1 (fr) * 2015-03-16 2016-09-21 Kahl Group S.A. Dispositif d'entaillage et de vidage de sacs
EP3409602A1 (fr) * 2017-06-02 2018-12-05 METALOGONDE - Indústria Metalomecânica, Lda. Dispositif agitateur dynamique pour le vidage de sacs
WO2019087068A1 (fr) * 2017-11-03 2019-05-09 Main Tech S.R.L. Appareil pour vider des sacs contenant un matériau en vrac

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE425965B (sv) * 1978-09-05 1982-11-29 Kopo Tement Ab Secktomningsanordning innefattande ett vikbart tvadelat uppleggningsbord
JPS60183331A (ja) * 1984-02-24 1985-09-18 株式会社尾上機械 袋詰内容物の排出装置
US5613824A (en) 1995-03-23 1997-03-25 Tsukasa Industry Co., Ltd. Automatic bag opening device
EP1838582A1 (fr) 2004-10-19 2007-10-03 Ayal Robotics and Engineering Ltd. Appareil permettant de vider automatiquement des sacs
EP3070014A1 (fr) * 2015-03-16 2016-09-21 Kahl Group S.A. Dispositif d'entaillage et de vidage de sacs
EP3409602A1 (fr) * 2017-06-02 2018-12-05 METALOGONDE - Indústria Metalomecânica, Lda. Dispositif agitateur dynamique pour le vidage de sacs
WO2019087068A1 (fr) * 2017-11-03 2019-05-09 Main Tech S.R.L. Appareil pour vider des sacs contenant un matériau en vrac

Also Published As

Publication number Publication date
PL239201B1 (pl) 2021-11-15
PL430714A1 (pl) 2021-02-08

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