WO2005056388A1 - Pince conçue en particulier pour tenir des sacs - Google Patents
Pince conçue en particulier pour tenir des sacs Download PDFInfo
- Publication number
- WO2005056388A1 WO2005056388A1 PCT/IT2003/000829 IT0300829W WO2005056388A1 WO 2005056388 A1 WO2005056388 A1 WO 2005056388A1 IT 0300829 W IT0300829 W IT 0300829W WO 2005056388 A1 WO2005056388 A1 WO 2005056388A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pincer
- cursor
- guide
- gripping
- groove
- Prior art date
Links
- 210000000080 chela (arthropods) Anatomy 0.000 title claims abstract description 37
- 239000000872 buffer Substances 0.000 claims description 2
- 230000003213 activating effect Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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
- B65B43/00—Forming, feeding, opening or setting-up containers or receptacles in association with packaging
- B65B43/42—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation
- B65B43/46—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using grippers
- B65B43/465—Feeding or positioning bags, boxes, or cartons in the distended, opened, or set-up state; Feeding preformed rigid containers, e.g. tins, capsules, glass tubes, glasses, to the packaging position; Locating containers or receptacles at the filling position; Supporting containers or receptacles during the filling operation using grippers for bags
Definitions
- the present invention relates to a pincer, in particular for holding envelopes, of the type described in the preamble to claim 1.
- envelopes are held by means of pincers or mechanical hands, which grip the lateral and opposite edges of a package, in order to keep it in position, for example during the opening or filling operations. Especially in this latter case it is necessary to keep the package firmly in position, to allow the insertion of a filling valve which dispenses the product directly into the interior of the package.
- pincers or mechanical hands all generally constituted by a pair of jaws pivotally engaged to each other and actuated by gears and/or leverage mechanisms, typically operated by cams and/or by elastic elements, the latter being both of the linear and torsional kind.
- An object of the present invention is to make available a pincer, in particular for holding envelopes, which is extremely simple to build and, in particular, which has a reduced number of mechanical components.
- a pincer in accordance with the present invention has the goal of reducing the number of leverage mechanisms and gears currently present in prior art pincers.
- Another object of the present invention is to provide a pincer which is universal, i.e. which, appropriately dimensioned, can be used to hold envelopes of any size.
- An additional object of the present invention is to propose a pincer which is reliable and economical to produce.
- the pincer for holding envelopes in accordance with the present invention is globally designated with the number 1 and is preferably made of stainless steel.
- the pincer 1 comprises a pair of gripping elements 2, 3, operating between an operative configuration for releasing the envelopes ( Figure 1) and an operative configuration for holding the envelopes ( Figure 2).
- the pincer 1 is also provided with a support structure 4 for a first grip element 2.
- said support structure 4 has a guide 5 for cursor 6, whereon is fastened a second gripping element 3.
- both the cursor 6 and the guide 5 develop according to a same axis 100, substantially longitudinal, and have a preferably circular cross section.
- the cursor 6 has an end portion 7, positioned externally to the guide 5, and an operative portion 8, or stem, inserted within the guide.
- the second gripping element 3 is integrally connected to the cursor 6, in correspondence with its end portion 7.
- the gripping element 3 is positioned externally to the guide 5 and is in substantially offset position relative to the axis 100 of longitudinal development of the cursor 6.
- the first gripping element 2 is integrally connected with the support structure 4, in correspondence with its end 11. Specifically, the first gripping element 2 is positioned externally to the guide 5 and is substantially offset relative to the longitudinal axis 100 thereof.
- each of them is installed on respective plates 22,33 and integrally fastened therewith by means of bolts 42, 43.
- the cursor 6 moves with rotary-translatory motion within the guide 5, in order to move the gripping elements 2,3 closer to and farther away from each other.
- to activate the rotary-translatory motion of the cursor 6 are employed means which are appropriately positioned both on the cursor and within the guide 5.
- an abutment element 9 which co-operates with a groove 10 having at least a curvilinear segment 10a, wound on a lateral surface of the stem 8 of the cursor 6.
- the abutment element 9 is preferably a pin having substantially circular cross section.
- the groove 10, coming in sliding contact with the pin 9, substantially serves as a cam, inducing the rotary-translatory motion of the cursor 6.
- the groove 10 has a curvilinear development able to cause a rotation of the cursor 6 by about 90° about its own longitudinal axis 100.
- the groove 10 has a helical development with a predetermined pitch, preferably such as to allow an advance of the cursor 6 by about 60 millimetres with a complete revolution (i.e. an angle of 360°) of the cursor 6 about its own longitudinal axis 100.
- the groove 10 has a curvilinear development the rotation of cursor 6 about its own longitudinal axis 100 is about 90°, the cursor advances by about 15 millimetres.
- the groove 10 in addition to having a curvilinear and substantially helical segment 10a, also has a rectilinear segment 10b with a length of about 10 millimetres. Said rectilinear segment 10b assures greater precision when gripping the envelopes and prevents any improper positioning.
- the gripping elements 2,3 are constituted by a pair of buffers, made of rubber.
- the pincer 1 is associated to means for actuating the cursor 6, to enable the groove 10 to interact with the pin 9, to induce the rotary-translatory motion of the cursor 6 and to allow the gripping elements 2,3 to move closer/farther away.
- said means for actuating the cursor 6 are obtained by means of a pneumatic cylinder defined by the guide 5 itself and by a portion 6a of the cursor 6, which acts substantially as a piston.
- the portion 6a of the cursor divides the guide 5 into two chambers 5a,5b, within which is alternatively sent pressurised air to induce the sliding of the cursor 6 within the guide 5.
- the pressurised air sent into a first chamber 5 a thrusts the cursor 6 within the guide 5, in such a way that the groove 10 interacts with the pin 9, which, following the profile of the groove, determines a rotary-translatory motion of the cursor 6 and hence of the gripping element 3.
- the gripping element 3 is in contact with the corresponding gripping element 2 integral with the support structure 4. In this way, the gripping elements 2, 3 are able to grip and firmly to hold an envelope previously interposed between them. To release the envelope, it is sufficient to send pressurised air into the second chamber
- a pincer according to the invention is extremely simple to build and has a reduced number of mechanical components.
- such a pincer requires no wheel mechanisms, lever mechanisms and/or transmissions, unlike prior art pincers.
- the rotary-translatory motion of the cursor 6 (and hence of the gripping element 3 integral therewith), together with the offset of the gripping elements 2,3 relative to the longitudinal axis 100 of the guide 5, enables easily to release an envelope from the action of the gripping elements.
- An additional advantage of the present invention is that such a pincer is universal, i.e. it can be employed to hold envelopes of any size.
- a pincer according to the present invention is economical to produce and reliable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Making Paper Articles (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003300733A AU2003300733A1 (en) | 2003-12-11 | 2003-12-17 | Pincer, in particular for holding bags |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITPR20030108 ITPR20030108A1 (it) | 2003-12-11 | 2003-12-11 | Pinza, in particolare per trattenere buste. |
ITPR2003A000108 | 2003-12-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005056388A1 true WO2005056388A1 (fr) | 2005-06-23 |
Family
ID=34674581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IT2003/000829 WO2005056388A1 (fr) | 2003-12-11 | 2003-12-17 | Pince conçue en particulier pour tenir des sacs |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2003300733A1 (fr) |
IT (1) | ITPR20030108A1 (fr) |
WO (1) | WO2005056388A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2135809A3 (fr) * | 2008-06-11 | 2012-11-07 | Toyo Jidoki Co., Ltd. | Préhenseur pour appareil de remplissage de sac automatique |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5182898A (en) * | 1991-11-12 | 1993-02-02 | Industrial Technology Research Institute | Bagging specification adjustment and automatic inward-contraction and outward-expansion mechanism for bagging machine |
US5673541A (en) * | 1995-10-31 | 1997-10-07 | Emplex Systems, Inc. | Apparatus and method for forming, filling and sealing a bag |
US6073424A (en) * | 1997-10-10 | 2000-06-13 | Indag Gesellschaft Fur Industriebedarf M.B.H | Apparatus for treating flexible bags |
-
2003
- 2003-12-11 IT ITPR20030108 patent/ITPR20030108A1/it unknown
- 2003-12-17 WO PCT/IT2003/000829 patent/WO2005056388A1/fr active Application Filing
- 2003-12-17 AU AU2003300733A patent/AU2003300733A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5182898A (en) * | 1991-11-12 | 1993-02-02 | Industrial Technology Research Institute | Bagging specification adjustment and automatic inward-contraction and outward-expansion mechanism for bagging machine |
US5673541A (en) * | 1995-10-31 | 1997-10-07 | Emplex Systems, Inc. | Apparatus and method for forming, filling and sealing a bag |
US6073424A (en) * | 1997-10-10 | 2000-06-13 | Indag Gesellschaft Fur Industriebedarf M.B.H | Apparatus for treating flexible bags |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2135809A3 (fr) * | 2008-06-11 | 2012-11-07 | Toyo Jidoki Co., Ltd. | Préhenseur pour appareil de remplissage de sac automatique |
Also Published As
Publication number | Publication date |
---|---|
AU2003300733A1 (en) | 2005-06-29 |
ITPR20030108A1 (it) | 2005-06-12 |
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