WO2017008936A1 - Pince à vide munie d'un cylindre - Google Patents

Pince à vide munie d'un cylindre Download PDF

Info

Publication number
WO2017008936A1
WO2017008936A1 PCT/EP2016/060831 EP2016060831W WO2017008936A1 WO 2017008936 A1 WO2017008936 A1 WO 2017008936A1 EP 2016060831 W EP2016060831 W EP 2016060831W WO 2017008936 A1 WO2017008936 A1 WO 2017008936A1
Authority
WO
WIPO (PCT)
Prior art keywords
cylinder
gripper
negative pressure
vacuum chamber
cylinders
Prior art date
Application number
PCT/EP2016/060831
Other languages
German (de)
English (en)
Inventor
Winfried Hörberg
Original Assignee
Gea Food Solutions Germany Gmbh
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 Gea Food Solutions Germany Gmbh filed Critical Gea Food Solutions Germany Gmbh
Priority to ES16723350T priority Critical patent/ES2751012T3/es
Priority to EP16723350.1A priority patent/EP3322561B1/fr
Publication of WO2017008936A1 publication Critical patent/WO2017008936A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/005—Vacuum work holders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/018—Holding the work by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0683—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form specially adapted for elongated articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D2210/00—Machines or methods used for cutting special materials
    • B26D2210/02—Machines or methods used for cutting special materials for cutting food products, e.g. food slicers

Definitions

  • the present invention relates to a gripper for use in a cutting machine, in particular a heavy duty cutting machine, which can be reversibly engaged with one end of a food product. Furthermore, the present invention relates to a method for slicing food products.
  • Such grippers are known from the prior art, for example DE 100 24 913, EP 2 095 919 B1, EP 2 388 1 12, DE 10 2010 038 931 B4 and EP 2 535 299 B1 and are used in high-performance cutting machines in which food product, e.g. As meat, sausage and / or cheese bars are cut into food slices used.
  • the gripper is engaged before or during the slicing of the food product with its end, for example, to guide this tail when cutting, stabilize and / or to dispose of an end piece that can not be further cut or not cut ,
  • the connection between the gripper and the food product is generated in each case by a negative pressure.
  • the grippers according to the prior art have the disadvantage that they are elaborately constructed and / or generate much exhaust air
  • the object is achieved with a gripper for use in a cutting machine, in particular a high-performance cutting machine, before and / or during the
  • the gripper having a vacuum chamber in which a vacuum is applied holding the food product to the gripper, wherein a cylinder generates the negative pressure and the cylinder has a first and second a second connection, which are selectively, in particular alternately, connected to the vacuum chamber.
  • the present invention relates to a gripper for use in cutting machines, in particular a high-performance cutting machine, in which food products are cut into food slices.
  • This gripper is reversibly with a food product, for example, with one end, in engagement and fixed and / or performs this particular when slicing the last food slices of Food product. Furthermore, the gripper holds the remnant and leads it, for example, via a disposal chute, where it is detached from the gripper and falls into a disposal chute.
  • the gripper has a vacuum chamber, in which a negative pressure is applied, which holds the food product on the gripper.
  • this negative pressure is generated with a cylinder, said cylinder having a first and a second gas-side port, which are selectively, in particular alternately connected to the vacuum chamber. This allows a nearly continuous readjustment of the negative pressure in the vacuum chamber.
  • the cylinder has a piston which is moved along the cylinder and thereby generates a negative pressure.
  • the piston is driven.
  • the drive of the piston is controlled by a sensor, for example a pressure sensor, which measures the negative pressure in the pressure chamber and moves the piston as soon as the negative pressure falls below a desired value.
  • the drive reciprocates the piston between two endpoints.
  • At least one valve is provided at the connections, which opens and closes them and / or connects them to the environment or to the pressure chamber.
  • each gripper has at least two cylinders which generate the negative pressure and which are selectively connected, in particular alternately, to the vacuum chamber.
  • each cylinder has a first and a second gas-side connection.
  • These ports may each be connected to the vacuum chamber and / or to the environment.
  • these connections can be used either for generating the negative pressure in the vacuum chamber and / or for loading and / or venting a cylinder.
  • Each cylinder has a piston rod which moves within the cylinder along the central axis thereof. The movement generates a negative pressure at one of the gas-side connections and an overpressure at the other gas-side connection.
  • the cylinder separates the two ports so that different pressures can be applied to the ports within a cylinder.
  • each cylinder preferably has its own drive. With this drive, the cylinders can be driven uniformly but also at least temporarily differently. This makes it possible, for example, in a gripper with two cylinders, a continuous readjustment of the negative pressure, i. to generate a continuous flow of air between the vacuum chamber and the cylinder.
  • a plurality of cylinders have a common drive and consequently are driven uniformly.
  • the drive of each piston of each cylinder is controlled by a sensor, for example a pressure sensor, which measures the negative pressure in the pressure chamber and moves the piston as soon as the negative pressure falls below a desired value.
  • a sensor for example a pressure sensor, which measures the negative pressure in the pressure chamber and moves the piston as soon as the negative pressure falls below a desired value.
  • the drive reciprocates the piston between two endpoints.
  • At least one valve is provided at the ports of each cylinder, which opens and closes them and / or communicates with the environment or with the pressure chamber.
  • a port of a cylinder is fixedly connected to the vacuum chamber and a port fixed to the environment.
  • a further subject of the present invention is a method for slicing a food product, in which the end of the food product is brought into contact with a gripper before and / or during slicing, wherein a negative pressure is formed in a vacuum chamber between the end and the gripper, and the negative pressure is generated by a cylinder having two ports which are selectively, in particular, alternately brought into communication with the vacuum chamber.
  • a food product is sliced.
  • a knife in particular a rotating knife, separates food slices from one end, for example the front end of the food product from.
  • the opposite, rear end of the food product is brought into contact with the gripper before and / or during the slicing and connected to it in a positive and / or non-positive manner.
  • the frictional connection between the gripper and the food product takes place through a vacuum chamber, in which a negative pressure is applied, which holds the food product to the gripper.
  • the negative pressure is now generated by a cylinder having two ports, which are selectively, in particular, alternately brought into connection with the vacuum chamber.
  • a slicing apparatus has, for example, a controller and a plurality of valves which are controllable such that either the one or the other connection is connected to the negative pressure chamber on the gas side and thus the negative pressure in the negative pressure chamber can be maintained at a certain level.
  • the switching between the two terminals can be controlled, for example, by a sensor which detects the position of a piston within the cylinder.
  • the negative pressure in the vacuum chamber can be measured, and should it not be possible to keep this negative pressure to a certain level, the changeover can take place from one connection to the other.
  • Another object of the present invention is a gripper with at least two cylinders, wherein one cylinder drives the other cylinder.
  • the two piston rods of the cylinder are connected together.
  • Yet another object of the present invention is a method for slicing a food product in which the end of the food product is brought into contact with a gripper before and / or during slicing, wherein a negative pressure is formed in a vacuum chamber between the end and the gripper. in which the negative pressure of at least two cylinders is generated, which are selectively brought into connection with the vacuum chamber.
  • two cylinders are available, which are selectively connected, for example alternately, to the vacuum chamber become. This makes it possible to continuously suck an air flow from the vacuum chamber and thereby maintain a certain negative pressure in the vacuum chamber upright.
  • the cylinders are alternately brought into communication with the vacuum chamber.
  • Each cylinder has a piston which is moved along the central axis of the cylinder and thereby generates a negative pressure.
  • the piston is driven.
  • the drive of the piston is controlled by a sensor, for example a pressure sensor, which measures the negative pressure in the pressure chamber and moves the piston as soon as the negative pressure falls below a desired value.
  • the drive reciprocates the piston between two endpoints.
  • At least one valve is provided at the connections, which opens and closes them and / or connects them to the environment or to the pressure chamber.
  • a negative pressure is generated alternately with the cylinders.
  • a negative pressure is generated at least temporarily at the same time with the cylinders.
  • Each cylinder has a piston which has a drive which moves the piston along the longitudinal axis of the cylinder.
  • the pistons of the two cylinders are driven uniformly and / or differently.
  • FIG. 1 shows the slicing device according to the invention.
  • Figures 2-4 show the generation of the negative pressure
  • FIGS 5 and 6 show a further embodiment of the gripper
  • FIG. 7 shows yet another embodiment of the gripper 1 shows a slicing device 5.
  • the slicing device 5 has a
  • Cutting knife 1 which cuts a food product 2 in food slices 12.
  • each food product 2 is transported with a conveying means 4, here two conveyor belts 4, continuously or intermittently in the direction of the cutting plane 6 of the knife 11.
  • the lower conveyor belt 4 is at the same time a product support.
  • Cutting knife 1 1 is attached to a rotating blade holder 3 and cooperates with a cutting edge 9 cutting, which is provided for example at the front end of a product support 4 and together define the cutting plane 6.
  • a so-called cutting gap is present, which should be as small as possible, but must be so large that the knife does not touch the cutting edge.
  • This gap must be adjusted regularly. This can be done by a movement of the knife and / or the cutting edge.
  • the cutting edge must be aligned parallel to the knife.
  • Slicing device has per feed path 7 on a gripper 8, which engages the rear end 13 of the food product 2 before and / or during cutting and this during slicing, especially towards the end of slicing, stabilized and the tail, which can not be cut, disposed of ,
  • Each gripper is preferably on a gripper carriage (not shown) is provided, the gripper, in particular parallel to the feed direction of the food product, before and
  • Each gripper is preferably at least temporarily individually driven.
  • the slicing device is provided in multiple tracks, i. H. that a plurality of food products 2 are cut open by a knife, in particular at least temporarily at the same time or at least temporarily sequentially.
  • the device has for each food product its own track 7, along which it is transported in the direction of the knife 11.
  • FIGS 2 to 4 show an embodiment of the gripper 8 according to the invention, with which a food product 2 is taken.
  • the gripper has a Vacuum chamber 20, which is connected to the rear end of the food product in
  • the gripper 8 has in the present case, two cylinders 17, 18, in each of which a piston rod 23, 24 is provided axially movable. Each cylinder has a first and second connection 25, 26, which are separated from each other by the respective piston 23, 24 on the gas side, so that different pressures can rest on the connections 25, 26.
  • the vacuum chamber 20 is fixedly connected to the port 26 of the cylinder 17 (see Fig. 2) and the port 25 of the cylinder 18 is also connected to the vacuum chamber 20, it being understood by those skilled in the art
  • the air which is located on the opposite side of the cylinder 23, displaced and discharged, for example, to the environment.
  • the ports 25, 26 of the cylinder 18 are both connected to the environment in the present case. In the present example, the two cylinders are driven uniformly.
  • FIG 3 shows the so-called switching position in which the two cylinders are in their one end position.
  • the movement of the cylinder is reversed in the opposite direction, which in turn is shown by the arrows 21, 22 in Figure 4.
  • the connection 25 of the cylinder 18 is now connected to the vacuum chamber 20, so that the negative pressure in this vacuum chamber can be readjusted.
  • the air beyond the piston 24 is discharged through the port 26, as symbolized by the arrow 15, into the environment.
  • the two ports 25, 26 of the cylinder 17 are connected to the environment, so that through the port 25 air flows into the cylinder 17 and through the port 26 air flows out of the cylinder.
  • the two cylinders can also be driven independently of one another and can also perform different movements.
  • the piston 23 of the cylinder 17 performs the movement shown in Figure 2, while the other piston 24 is in the position shown in Figure 3.
  • the piston 24 is already moved out of its position shown in Figure 3 and performs the movement shown in Figure 4.
  • connection 26 of the cylinder 18 can also be connected to the vacuum chamber or, with reference to FIG. 4, the connection 25 of the cylinder 17 can also be connected to the vacuum chamber. Assuming a corresponding valve circuit, the volume of both cylinders can thereby be used simultaneously to generate a higher volume flow out of the vacuum chamber and thereby achieve the desired negative pressure more quickly.
  • the slicing device or the gripper on a corresponding control or a corresponding sensor, which optionally
  • FIGS. 5 and 6 show a further embodiment of the invention
  • Gripper which in the present case has two cylinders 17, 18 whose piston rod are connected together.
  • the cylinder 17 serves to generate the negative pressure in the vacuum chamber 20.
  • the cylinder 18 drives the cylinder 17 at.
  • the cylinder has a compressed air source 16, which drives the piston rod of the cylinder 18 and thus of the cylinder 17.
  • the negative pressure in the negative pressure chamber 20 is generated and maintained.
  • FIG. 7 shows yet another embodiment of the gripper according to the invention.
  • the cylinders 17, 18 are not provided adjacent to each other but in series.
  • negative pressure in the vacuum chamber 20 is generated and the piston rod of the cylinder 18 drives the piston rod of the cylinder 17 at.
  • the optional additional, here right, double cylinder can be used as soon as the piston rod of the cylinder 17 has reached its top dead center.
  • the cylinder 17, here on the right side connected to the vacuum chamber 20 and there Negative pressure generated.
  • the person skilled in the art recognizes that, however, a double cylinder connected in series is sufficient. Otherwise, the double cylinder on the right works like the double cylinder on the left.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Meat, Egg Or Seafood Products (AREA)

Abstract

L'invention concerne une pince destinée à être utilisée dans une trancheuse, en particulier une trancheuse à grand rendement, qui peut être mise en prise de manière réversible avec une extrémité d'un produit alimentaire. La présente invention concerne également un procédé de découpe de produits alimentaires.
PCT/EP2016/060831 2015-07-16 2016-05-13 Pince à vide munie d'un cylindre WO2017008936A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES16723350T ES2751012T3 (es) 2015-07-16 2016-05-13 Pinza de vacío dotada de un cilindro
EP16723350.1A EP3322561B1 (fr) 2015-07-16 2016-05-13 Pince à vide munie d'un cylindre

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102015213407 2015-07-16
DE102015213407.5 2015-07-16
DE102015216983 2015-09-04
DE102015216983.9 2015-09-04

Publications (1)

Publication Number Publication Date
WO2017008936A1 true WO2017008936A1 (fr) 2017-01-19

Family

ID=56014998

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/060831 WO2017008936A1 (fr) 2015-07-16 2016-05-13 Pince à vide munie d'un cylindre

Country Status (3)

Country Link
EP (1) EP3322561B1 (fr)
ES (1) ES2751012T3 (fr)
WO (1) WO2017008936A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2224375A1 (fr) * 1971-05-24 1972-12-07
EP2095919A1 (fr) * 2008-02-29 2009-09-02 Reifenhäuser, Uwe, Dipl.-Ing. Procédé de découpe d'aliments en forme de tiges et machine de profilage
WO2014135098A1 (fr) * 2013-03-06 2014-09-12 科沃斯机器人科技(苏州)有限公司 Pompe à air à deux chambres et à double action, et robot essuie-vitre pourvu de cette pompe à air

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2224375A1 (fr) * 1971-05-24 1972-12-07
EP2095919A1 (fr) * 2008-02-29 2009-09-02 Reifenhäuser, Uwe, Dipl.-Ing. Procédé de découpe d'aliments en forme de tiges et machine de profilage
WO2014135098A1 (fr) * 2013-03-06 2014-09-12 科沃斯机器人科技(苏州)有限公司 Pompe à air à deux chambres et à double action, et robot essuie-vitre pourvu de cette pompe à air
EP2966303A1 (fr) * 2013-03-06 2016-01-13 Ecovacs Robotics (Suzhou) Co., Ltd. Pompe à air à deux chambres et à double action, et robot essuie-vitre pourvu de cette pompe à air

Also Published As

Publication number Publication date
EP3322561A1 (fr) 2018-05-23
ES2751012T3 (es) 2020-03-30
EP3322561B1 (fr) 2019-08-28

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