Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
  • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
  • B26F1/38—Cutting-out; Stamping-out
  • B26F1/3846—Cutting-out; Stamping-out cutting out discs or the like
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
  • B26B25/00—Hand cutting tools involving disc blades, e.g. motor-driven
  • B26B25/005—Manually operated, e.g. pizza cutters
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
  • B26B25/00—Hand cutting tools involving disc blades, e.g. motor-driven
  • B26B25/005—Manually operated, e.g. pizza cutters
  • B26B25/007—Operable only in combination with guiding means, e.g. paper cutters
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
  • B26B29/00—Guards or sheaths or guides for hand cutting tools; Arrangements for guiding hand cutting tools
  • B26B29/06—Arrangements for guiding hand cutting tools
• • 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
  • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
  • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
  • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
  • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
  • B26D1/157—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
  • B26D1/16—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable arm or the like
  • B26D1/165—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis mounted on a movable arm or the like for thin material, e.g. for sheets, strips or the like
• • 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
  • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
  • B26D5/08—Means for actuating the cutting member to effect the cut
  • B26D5/10—Hand or foot actuated means
• • 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
  • B65B69/0033—Unpacking of articles or materials, not otherwise provided for by cutting

Definitions

• the present invention relates to a device for opening by cutting packages, in particular cardboard packages.
• the cutting is generally carried out at the level of the adhesive tape used to assemble the package flaps.
• This cutting operation can be relatively long and presents risks of cuts for the user of the cutter.
• the shape of the opening made by cutting may not be of sufficient size to allow easy passage of the operator's forearm through the face of the package in order to remove the objects contained within. inside it, and thus cause scratches on the forearm.
• the present invention aims to remedy these drawbacks.
• the subject of the invention is a device for opening packages by cutting, in particular cardboard packages, comprising a protective cover provided with a lower face for bearing on the package to be cut, a drive shaft extending axially through the protection bell, at least one support rod mounted on the drive shaft and extending inside the protection bell, and at least one cutting blade mounted on said support rod .
• the drive shaft is at least axially movable in translation relative to the protective bell between a rest position in which said cutting blade remains axially set back or is flush with the lower face of support of said bell, and at least one cutting position in which said cutting blade is at least partly axially projecting relative to said lower bearing face.
• the device further comprises an elastic return member of the drive shaft in the rest position.
• the cutting of one side of the package to be opened can be carried out quickly and easily without risk of cuts for the operator.
• the drive shaft is driven in translation to the cutting position.
• the protective cover prevents any risk of contact with the cutting blade (s).
• the grouting of the drive shaft can be done manually by the operator or can be controlled in an operator-assisted manner, for example by means of a motor.
• the return device allows automatic return of the drive shaft to the rest position in which the cutting blade (s) are housed inside the protective bell.
• the time for cutting a package is greatly reduced and the risk of cuts with the cutting blade or blades is very low.
• the laboriousness of the opening operation by cutting is greatly reduced compared to the use of a cutter which requires many movements of the wrist.
• stop integral with the drive shaft is understood to mean an element made in one piece with the drive shaft, or else an element attached to said shaft and fixed with respect to the latter.
• the return member may for example be a cylindrical compression spring.
• the return member can be produced by a stack of conical spring washers called B elleville.
• the cutting blade or blades can be made from any material suitable for cutting a package, for example metal, ceramic, plastic, etc.
• the device also comprises a member for adjusting the state of compression of the elastic return member which is slidably mounted on the drive shaft axially on the side opposite to said support rod with respect to the protection bell.
• the descent stroke of the cutting blade (s) is adjusted according to the thickness of the package. It can be chosen by the user in order to avoid crossing the entire thickness of the face of the parcel to be cut. By leaving a small thickness of material left after cutting, the user can easily tear it off manually. This makes sure not to damage the objects, including products and goods, contained inside the package.
• the return member can be mounted on the drive shaft axially between the adjustment member and a stop integral with the protective bell.
• stop integral with the protective bell is understood to mean an element produced in one piece with the protective bell, or else an element attached to said bell and fixed with respect to the latter.
• the adjustment member is mounted axially to bear against the return member and comprises a nut engaged on a threaded portion of the drive shaft.
• the adjuster may also further include a compression ring disposed axially between the nut and the return member.
• the compression ring can bear axially against the nut and the return member.
• the axial contact of the compression ring with the nut and the return member can be direct or indirect, i.e. with the interposition of an additional part.
• the drive shaft is also mounted so as to be able to rotate with respect to the protective bell.
• the drive shaft is rotated and slurried simultaneously to the cutting position.
• the drive shaft is movable only in translation relative to the protective bell.
• the device may further comprise, suspended from the free end of the drive shaft which is located axially inside the protective bell, a support member in the position of the package to be cut provided with an underside for bearing on said package.
• the drive shaft is at least axially movable in translation relative to the support member. A shoulder of the drive shaft can bear axially against the support member in said cutting position of said shaft.
• said drive shaft is rotatably movable relative to the support member.
• the device may further comprise, attached to the free end of the drive shaft which is located axially inside the protective bell, a point extending axially beyond the lower bearing face of said protective bell.
• the device further comprises means for adjusting the position of said cutting blade along the support rod.
• means for adjusting the position of said cutting blade along the support rod it is possible to pre-adjust the size of the cutout that will be made on the package.
• the device may further include a bearing interposed radially between the drive shaft and the protective bell.
• the drive shaft can include a shoulder coming axially to bear against the bearing in the rest position of said shaft. The shoulder forms an axial stop for the drive shaft when it returns to its rest position.
• the bearing can be provided with an inner ring, an outer ring and at least one row of rolling elements arranged between the rings.
• the bearing may be of the sliding type and consist of a single annular ring, for example made of thermoplastic material, and may include radial grooves capable of being filled with lubricant.
• the sliding bearing may include two rings which slide directly over one another.
• the invention also relates to a kit for cutting packages, in particular cardboard packages, comprising a device for opening by cutting as defined above, a tool suitable for attaching to the drive shaft of the device for opening by cutting. cutting and equipped with a motor, and a receiving box inside which are housed said tool and the opening device by cutting.
• the tool may for example be a drill in the mandrel of which the drive shaft is intended to be fixed. opening device by cutting.
• FIG 2 are perspective views of an opening device by cutting packages according to a first embodiment of the invention.
• FIG 3 is a front view of the device of Figure 1
• FIG 4 is a sectional view along axis IV-IV of Figure 2,
• FIG 5 is a sectional view of the device of Figures 1 to 4 mounted to rest against a face of a package to be opened in a rest position of the device,
• FIG 6 is a sectional view of the device against the face of the package to be opened in a cutting position
• FIG 7 is a sectional view of the device after cutting the face of the package.
• FIG 8 is a sectional view of a package opening device according to a second embodiment of the invention.
• FIG. 1 to 3 a cutting opening device, designated by the general reference numeral 10, which is intended to allow the cutting of a part of a package.
• the package can for example be made of cardboard.
• the device 10 comprises a protective bell 12, a shaft
• the device 10 also comprises a handle 19 attached to the protective bell 12 to facilitate gripping and handling.
• the drive shaft 14 can slide ser relative to the bell 12 to do not ser the cutting blades 1 8 from a rest position illustrated in Figures 1 to 5, to a cutting position shown in Figure 6.
• the device 10 also includes a spring 20 to allow automatic return of the drive shaft 14 from the cutting position to the rest position.
• the device 10 with a longitudinal axis X-X ', is shown in a supposedly vertical position.
• Bell 12 of protection comprises an upper front wall 12a, and a peripheral j upe 12b extending the front wall 12a.
• the peripheral j upe 12b axially extends a large-diameter edge of the front wall 12a.
• the peripheral skirt 12b here has a cylindrical shape.
• the handle 19 is fixed to the upper front wall 12a.
• the protective bell 12 internally delimits a chamber 22 inside which are housed the rod 16 and the cutting blades 18.
• the internal chamber 22 is delimited radially by the peripheral skirt 12b and is closed axially on one side by the front wall 12a.
• the chamber 22 is open axially on the side opposite to the front wall 12a.
• the protective bell 12 also comprises a support collar 12c extending radially outwardly the lower end of the peripheral skirt 12b.
• the collar 12c has a lower face 12d which is intended to bear against the package to be cut.
• the lower face 12d of the collar forms the underside of the protective bell 12.
• the lower end of the peripheral skirt 12b forms the lower face of the protective bell 12 which is intended to bear against the package to be cut.
• the drive shaft 14 extends through the upper front wall 12a of the bell. A recess (not referenced) is made for this purpose on the upper front wall 12a of the bell.
• the drive shaft 14 extends in part inside the chamber 22 of the bell.
• the drive shaft 14 is rotatably mounted relative to the bell 12.
• the shaft 14 is movable about the X-X ’axis.
• the device 10 comprises a rolling bearing 24 interposed between said shaft and the bell 12.
• the rolling bearing 24 is mounted inside the chamber 22 of the bell.
• the bearing 24 comprises an inner ring mounted on the drive shaft 14, an outer ring mounted inside a bore formed by the front wall 12a of the bell, and a row of rolling elements, here produced under ball-shaped, arranged between raceways of the rings.
• the components of the rolling bearing 24 are not referenced.
• the front wall 12a of the bell has a stepped shape to allow the mounting of the rolling bearing 24.
• the outer ring of the bearing is fitted radially into the bore formed by a radial portion of the front wall 12a of the bell, and abuts axially against an axial portion of the front wall 12a which extends an upper edge of the radial portion.
• a plate 26 is fixed to the front wall 12a on the side of the chamber 22 to form an axial stop for the outer ring of the rolling bearing 24.
• the plate 26 is fixed here by screw wise on the front wall 12a of the bell.
• the shaft 14 is movable in rotation with respect to the bell 12.
• the shaft 14 is also movable axially relative to the latter.
• Shaft 14 is movable along the X-X ’axis. To allow axial movement of the shaft, it is slidably mounted in the bore of the inner ring of rolling bearing 24.
• the device 10 also comprises a member 28 for adjusting the state of compression of the spring 20.
• the spring 20 is here a cylindrical compression spring.
• the spring 20 is mounted around the drive shaft 14.
• the adjuster 28 adjusts the axial travel stroke of the drive shaft 14.
• the adjustment member 28 is mounted on the part of the drive shaft 14 located outside the bell 12.
• the adjustment member 28 leaves an end portion 14a of the drive shaft free.
• the adjustment member 28 comprises a nut 30 mounted on a threaded portion 14b of the drive shaft, and a compression ring 32 mounted on the shaft 14 while being disposed axially between the nut 30 and the spring 20
• the nut 30 internally comprises a thread engaged with a corresponding thread of the threaded portion 14b of the drive shaft.
• the adjustment member 28 also comprises a washer 34 interposed axially between the nut 30 and the ring 32.
• the ring 32 is mounted axially to bear against the nut 30 by means of the washer 34.
• the ring 32 is mounted axially to bear against the res out 20.
• One end of the res out 20 therefore bears against the adjusting member 28, and the other end bears against the rolling bearing 14, more precisely the inner ring of the bearing.
• the rolling bearing 14 performs a dual function, namely to ensure the rotary mounting of the shaft 14, and to form an axial stop for the res out 20.
• the rod 16 extends radially relative to the shaft 14.
• the rod 16 is fixed to the shaft 14 by any suitable means.
• the rod 16 extends radially in the direction of the peripheral skirt 12b of the protective bell, leaving a radial space between them.
• the rod 16 supports the cutting blades 18.
• the rod 16 has a rectangular section.
• the rod 16 can have other sections, for example square, triangular, circular, etc.
• a single rod 16 extending radially on either side of the shaft 14.
• the cutting blades 18 are axially recessed relative to the lower support face 12d of the protective bell.
• the cutting blades 18 are flush with the lower support face 12d of the bell.
• the risk of the operator cutting off by the blades 18 when handling the device 10 is increased.
• each cutting blade 18 is mounted on a base 36, itself fixed to the rod 16.
• Each base 36 extends axially.
• Each base 36 is mounted at a free end of the rod 16 and fixed to the latter, here by screwing. Alternatively, it could be possible to make the rod 16 and the bases 36 in one piece.
• the cutting blades 1 8 are here identical to each other.
• Each cutting blade 18 is in the form of a disc.
• Each cutting blade 18 is fixed here on the base 36 as a company with the possibility of rotation about a horizontal Y-Y axis which is perpendicular to the X'X ’axis.
• the cutting blades 18 can also have other shapes, for example a point shape.
• the device 10 also comprises a support member 38 adapted to bear against the package.
• the support member 38 is known to be spendu at the free end of the shaft 14 located inside the chamber 22 of the bell.
• the support member 38 comprises a lower face 38a which is coplanar with the lower face 12d of the protective bell.
• a plate 40 is fixed to the free end of the shaft 14 for the suspended mounting of the support member 38.
• the shaft 14 is movable in rotation and movable axially in relatively translation. to the support member 38.
• the bearing 42 comprises an inner ring mounted on the plate 40, an outer ring mounted inside a recess of the support member 38, and a row of rolling elements, here made in the form of balls, arranged between raceways of the rings.
• the outer ring of the rolling bearing 42 is fitted radially against the recess of the support member 38, and the inner ring is mounted on the shaft 14 with a sliding fit.
• the components of the rolling bearing 42 are not referenced.
• the device 10 is positioned resting against the face of the package on which it is desired to make a cutout as shown in Figure 5.
• the lower face 12d of the protective cover 12 and the lower face 38a of the 'support member 38 bear against the face of the package to be cut.
• the drive shaft 14 is driven in rotation around the axis X'-X 'by means of a tool (not shown) which has been mounted beforehand on the portion 14a free end of said shaft.
• the tool may for example be a drill in the mandrel of which the portion 14a of the drive shaft 14 is fixed.
• a third step the operator exerts, via the tool, an axial force on the drive shaft 14 which is oriented in the direction of the package to make said shaft slurry from the rest position illustrated in FIG. 5 to the cutting position illustrated in FIG. 6.
• the shaft 14 is therefore driven in rotation about the axis X-X 'and grout simultaneously along said axis.
• the cutting blades 18 penetrate the thickness of the face to be cut of the package.
• the grout shaft 14 is relative to the protective bell 12 and to the support member 38.
• the axial displacement of the shaft 14 from the rest position to the cutting position is effected against the Permanent axial force exerted by the spring 20.
• the spring 20 is compressed axially.
• the cutting blades 18 project axially with respect to the lower face 12d of the protective bell.
• the descent in height of the cutting blades 18 is sufficient to pass through the majority of the thickness of the face of the package. A small thickness of material remains which can then be easily torn off manually.
• a shoulder 44 of the shaft bears axially against the rolling bearing 42, more precisely against the inner race of the bearing.
• the plate 40 also bears axially against the bottom of the housing of the support member 38.
• the face of the package is cut.
• the cutout is circular in shape.
• the device 10 is then withdrawn from the face of the package and the cutout made on this face can be torn off manually.
• the operator can stop the drive in rotation of the shaft 14 and stop the axial force exerted on it.
• the spring 20 then tends to return to its initial position before compression, and allows the automatic return of the shaft 14 to its rest position.
• the axial downward travel of the shaft 14, and therefore of the cutting blades 18, can be adjusted by means of the adjustment member 28. This adjustment is carried out prior to the cutting operation. .
• the device 10 has been adjusted so as to obtain a maximum downward stroke of the shaft 14 and the cutting blades 18.
• the device 10 Prior to the cutting operation, if the device 10 is adjusted, via the adjustment member 28 by further compressing the res exits 20 so as to obtain a reduced descent stroke, only the res exits 20 when it comes out. is in its fully compressed state forms a stopper blocking the movement of the shaft 14 and the cutting blades 18 in the cutting position.
• An axial space remains between the shoulder 44 of the shaft and the rolling bearing 42, and between the plate 40 and the bottom of the housing of the support member 38.
• these adjustment means comprise a plurality of recesses 46 formed on the rod 16, and a removable fixing screw 48 which is associated with each base 36 supporting one of the cutting blades 18.
• Each recess 46 is internally threaded so that each screw 48 can be attached to the interior of the chosen recess.
• the recesses 46 are divided into two identical groups, each group located on one side of the shaft 14. In the illustrated embodiment, the spacing between two successive recesses 46 of the same group is regular. Alternatively, this spacing could be non-regular.
• the recesses 46 extend vertically on the rod 16. As a variant, it is possible to provide a horizontal orientation of the recesses 46.
• Each screw 48 bears on a flange (not referenced) of the base 36 as sociée and engages with the thread of the recess 46 inside which it extends.
• Each base 36 is mounted on the rod 16 with the possibility of grouting when the associated screw 48 is removed. The operator can adjust the size of the cutout that will be made on the package according to the spacing that is chosen beforehand between the cutting blades 18, according to the position of the screws 48 along the rod 16.
• the drive shaft 14 is mounted movable axially in translation and movable in rotation relative to the protective bell 12 so as to obtain the cutout on the face of the package to be opened thanks to this double movement of the shaft 14 and therefore of the cutting blades 18.
• a single or several cutting blades can be provided.
• the cutting blade (s) can be configured to obtain a circular, or oval, or polygonal cutout such as rectangular, square, etc.
• a tool is available which both greatly reduces the time it takes to cut a package and the associated risk of cutting.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Forests & Forestry (AREA)
• Details Of Cutting Devices (AREA)
• Control Of Cutting Processes (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=68281619

Family Applications (1)

Country Status (3)

Family Cites Families (5)

• 2019
  • 2019-06-19 FR FR1906598A patent/FR3097535B1/fr not_active Expired - Fee Related
• 2020
  • 2020-06-18 WO PCT/EP2020/066898 patent/WO2020254474A1/fr unknown
  • 2020-06-18 EP EP20733950.8A patent/EP3986683A1/de not_active Withdrawn

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