US3720040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming parcels of parallelipiped shape from individual stacks of flattened paper
Assignee: Windmoeller and Hoelscher KG
•
Filing: 1971-04-15
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Granted: 1973-03-13
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Expires: 1991-04-15
Abstract
Abstract Parcelling apparatus for installation downstream of a stacking device of paper or plastics bag-making machinery that delivers stacks of flattened bags, the parcelling apparatus having means for engaging successive stacks arriving lengthwise from the stacking device and for swinging the stacks sideways through 90* in alternately opposite directions, means for feeding the swung stacks to and depositing them side-on onto a table which extends normal to the feeding direction, and a reciprocatable pushing device which is adapted to move the deposited stacks to a parcelling station where a plurality of the stacks are juxtaposed preparatory to being packaged.
Inventors
- 👤 H Rocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:50
CPC Classifications
B; B65; B65B; B65B25/00; B65B25/14
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
333 words
Apparatus for forming parallelipiped parcels from individual stacks of flattened bags, comprising means for delivering stacks of flattened bags in which the bags are arraNged lengthwise to said apparatus, means for successively engaging the stacks and for turning the stacks sideways through an angle of 90* alternately clockwise and counterclockwise, said engaging and turning means comprising rotary plates mounted to be brought together like the jaws of tongs in sequence with the arrival of the stacks to engage the faces of successive stacks, said engaging and turning means further comprising a reciprocable U-shaped guide member and a U-shaped swing member which is pivoted to the lower end of the guide member at both sides of a table with the web of the U bridging the table so that the web of the swing member can be swung toward and away from the web of the guide member, the rotary plates being mounted on the respective webs at substantially the perpendicular longitudinal medial plane of the table, said engaging and turning means further comprising means for rotating at least one of said rotary plates, means for feeding the turned stacks from the engaging and turning means to the table and depositing the stacks on the table on their sides, said table extending substantially perpendicular to the feeding direction and having a plurality of slots therein, a pushing device mounted for reciprocable movement parallel to the table in sequence with the arrival of the stacks at the engaging means and adapted to move the stacks laterally from their arrival location to a parcelling station, automatic packaging means for the parcels downstream of the parcelling station, and a slide member having fingers for transferring each parcel to the packaging means, said slide member being displaceable parallel to the table during transfer of each parcel such that the fingers engage the parcel through the slots in the table and are then displaceable perpendicular to and away from the table until the fingers are withdrawn from the slots.
Claim 2
Dependent Claim
333 words
Apparatus for forming parallelipiped parcels from individual stacks of flattened bags, comprising means for delivering stacks of flattened bags in which the bags are arraNged lengthwise to said apparatus, means for successively engaging the stacks and for turning the stacks sideways through an angle of 90* alternately clockwise and counterclockwise, said engaging and turning means comprising rotary plates mounted to be brought together like the jaws of tongs in sequence with the arrival of the stacks to engage the faces of successive stacks, said engaging and turning means further comprising a reciprocable U-shaped guide member and a U-shaped swing member which is pivoted to the lower end of the guide member at both sides of a table with the web of the U bridging the table so that the web of the swing member can be swung toward and away from the web of the guide member, the rotary plates being mounted on the respective webs at substantially the perpendicular longitudinal medial plane of the table, said engaging and turning means further comprising means for rotating at least one of said rotary plates, means for feeding the turned stacks from the engaging and turning means to the table and depositing the stacks on the table on their sides, said table extending substantially perpendicular to the feeding direction and having a plurality of slots therein, a pushing device mounted for reciprocable movement parallel to the table in sequence with the arrival of the stacks at the engaging means and adapted to move the stacks laterally from their arrival location to a parcelling station, automatic packaging means for the parcels downstream of the parcelling station, and a slide member having fingers for transferring each parcel to the packaging means, said slide member being displaceable parallel to the table during transfer of each parcel such that the fingers engage the parcel through the slots in the table and are then displaceable perpendicular to and away from the table until the fingers are withdrawn from the slots.
Claim 3
Dependent Claim
333 words
Apparatus for forming parallelipiped parcels from individual stacks of flattened bags, comprising means for delivering stacks of flattened bags in which the bags are arraNged lengthwise to said apparatus, means for successively engaging the stacks and for turning the stacks sideways through an angle of 90* alternately clockwise and counterclockwise, said engaging and turning means comprising rotary plates mounted to be brought together like the jaws of tongs in sequence with the arrival of the stacks to engage the faces of successive stacks, said engaging and turning means further comprising a reciprocable Ushaped guide member and a U-shaped swing member which is pivoted to the lower end of the guide member at both sides of a table with the web of the U bridging the table so that the web of the swing member can be swung toward and away from the web of the guide member, the rotary plates being mounted on the respective webs at substantially the perpendicular longitudinal medial plane of the table, said engaging and turning means further comprising means for rotating at least one of said rotary plates, means for feeding the turned stacks from the engaging and turning means to the table and depositing the stacks on the table on their sides, said table extending substantially perpendicular to the feeding direction and having a plurality of slots therein, a pushing device mounted for reciprocable movement parallel to the table in sequence with the arrival of the stacks at the engaging means and adapted to move the stacks laterally from their arrival location to a parcelling station, automatic packaging means for the parcels downstream of the parcelling station, and a slide member having fingers for transferring each parcel to the packaging means, said slide member being displaceable parallel to the table during transfer of each parcel such that the fingers engage the parcel through the slots in the table and are then displaceable perpendicular to and away from the table until the fingers are withdrawn from the slots.
Claim 4
Dependent Claim
333 words
Apparatus for forming parallelipiped parcels from individual stacks of flattened bags, comprising means for delivering stacks of flattened bags in which the bags are arraNged lengthwise to said apparatus, means for successively engaging the stacks and for turning the stacks sideways through an angle of 90* alternately clockwise and counterclockwise, said engaging and turning means comprising rotary plates mounted to be brought together like the jaws of tongs in sequence with the arrival of the stacks to engage the faces of successive stacks, said engaging and turning means further comprising a reciprocable Ushaped guide member and a U-shaped swing member which is pivoted to the lower end of the guide member at both sides of a table with the web of the U bridging the table so that the web of the swing member can be swung toward and away from the web of the guide member, the rotary plates being mounted on the respective webs at substantially the perpendicular longitudinal medial plane of the table, said engaging and turning means further comprising means for rotating at least one of said rotary plates, means for feeding the turned stacks from the engaging and turning means to the table and depositing the stacks on the table on their sides, said table extending substantially perpendicular to the feeding direction and having a plurality of slots therein, a pushing device mounted for reciprocable movement parallel to the table in sequence with the arrival of the stacks at the engaging means and adapted to move the stacks laterally from their arrival location to a parcelling station, automatic packaging means for the parcels downstream of the parcelling station, and a slide member having fingers for transferring each parcel to the packaging means, said slide member being displaceable parallel to the table during transfer of each parcel such that the fingers engage the parcel through the slots in the table and are then displaceable perpendicular to and away from the table until the fingers are withdrawn from the slots.
Claim 5
Dependent Claim
127 words
Apparatus according to claim 1, wherein the means for rotating at least one of the rotary plates is rotatably connected to the rotary plate mounted on the swing member and is a thrust crank drive comprising a peripherally serrated crank plate rotatably mounted on a pivotal shaft of the swing member, a stationary rack engaging the crank plate and mounted parallel to the reciprocating motion of the guide member, a rocker arm connected to a transmission shaft mounted at the web of the swing member, and an angular gear connected to the transmission shaft for rotating the crank plate, the crank plate and rocker arm radii being such that the said rotary plate executes one quarter of a revolution during each reciprocating stroke of the guide member.
Claim 6
Dependent Claim
113 words
Apparatus according to claim 2 including a free-wheeling device operatively connected between the rack and crank plate, wherein the free-wheeling device comprises a peripherally serrated drive ring which is engaged in the rack and which has a pitch circle diameter of a size so that during each stroke of the guide member the drive ring executes half a revolution, the free-wheeling device being adapted to transmit said half revolution to the crank plate only during the down stroke of the guide member, and wherein the crank and rocker arm radii are such the transmitted half revolution of the crank plate corresponds to one quarter of a revolution of the said one rotary plate.
Claim 7
Dependent Claim
78 words
Apparatus according to claim 1, wherein the means for feeding the turned stacks to the table comprise reciprocable grippers mounted for movement from a lower dead center position below the table to an upper dead center position where they project through the slots in the table and where they are adapted to receive successive stacks from the engaging and turning means for depositing the stacks on the table as the grippers move to the lower dead center position.
Claim 8
Dependent Claim
49 words
Apparatus according to claim 4, wherein the table is in the form of a grate comprising a plurality of spaced parallel bars, the pushing device, slide member and grippers are in the form of rakes the fingers or prongs of which are engageaBle through the spaces between the bars.
Claim 9
Dependent Claim
48 words
Apparatus according to claim 1, wherein the parcelling station comprises means in the form of brushes for holding the stacks, the brushes being disposed above the table and parallel thereto and permitting entry of the stacks to the parcelling station but preventing the stacks from sliding out again.
Claim 10
Dependent Claim
30 words
Apparatus according to claim 1 including a reciprocal holding finger at the parcelling station for supporting the parcel of stacks at its upper edge when the pushing device is withdrawn.
Claim 11
Dependent Claim
42 words
Apparatus according to claim 1, wherein the parcelling station is provided with resilient blocking means which are adapted to be deflected downwardly by each stack reaching the parcelling station and which then spring up to hold the parcel at its lower edge.
Claim 12
Dependent Claim
61 words
Apparatus according to claim 1, wherein the movement of the slide member is controlled by a counter having sensing means which count the number of stacks reaching the parcelling station and which actuate a programming device for a drive for the slide member as soon as a predetermined number of stacks as set on the counter has reached the parcelling station.
Claim 13
Dependent Claim
28 words
Apparatus according to claim 1 including a frame which is adjustable along a guide track parallel to the direction in which the stacks are fed to the table.
Claim 14
Dependent Claim
20 words
Apparatus according to claim 10, wherein the guide track is a component of the frame of an upstream stacking device.
Claim 15
Dependent Claim
40 words
Apparatus according to claim 1, wherein the stacks are delivered to the engaging and turning means in a downwardly inclined direction, the engaging and turning means and the feeding means being correspondingly downwardly inclined and the table being upwardly inclined.
References Cited (Backward Citations)
US2768489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |