US3797372A - Box wrapping machine - Google Patents
Box wrapping machine Download PDFInfo
- Publication number
- US3797372A US3797372A US00239067A US3797372DA US3797372A US 3797372 A US3797372 A US 3797372A US 00239067 A US00239067 A US 00239067A US 3797372D A US3797372D A US 3797372DA US 3797372 A US3797372 A US 3797372A
- Authority
- US
- United States
- Prior art keywords
- box
- station
- wrapped
- unit
- wrapper
- 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.)
- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/60—Uniting opposed surfaces or edges; Taping
- B31B50/72—Uniting opposed surfaces or edges; Taping by applying and securing strips or sheets
- B31B50/722—Uniting opposed surfaces or edges; Taping by applying and securing strips or sheets on already formed boxes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
- B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
- B31B2105/0024—Making boxes having all side walls attached to the bottom
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2110/00—Shape of rigid or semi-rigid containers
- B31B2110/30—Shape of rigid or semi-rigid containers having a polygonal cross section
- B31B2110/35—Shape of rigid or semi-rigid containers having a polygonal cross section rectangular, e.g. square
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2120/00—Construction of rigid or semi-rigid containers
- B31B2120/50—Construction of rigid or semi-rigid containers covered or externally reinforced
- B31B2120/501—Construction of rigid or semi-rigid containers covered or externally reinforced by applying wrapping material only on the side wall part of a box
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B2160/00—Shape of flexible containers
- B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/26—Folding sheets, blanks or webs
- B31B50/44—Folding sheets, blanks or webs by plungers moving through folding dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/26—Folding sheets, blanks or webs
- B31B50/52—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers
Definitions
- the field of the present invention concerns those types of wrapping machines wherein an outside wrapper is folded around a box, a box cover or around a similar container.
- a box staying machine which erects box blanks and places the boxes open end up on a box conveyor that delivers the set-up boxes on an unwrapped box supply table.
- the boxes on the supply table are located across the main conveyor belt from an operator who manually places a box open end up upon the adhesive face of a wrapper on the main conveyor.
- the box-wrapper units are sequentially arrested in alignment with the box wrapping machine which is provided with a trans fer carriage that moves across the belt to pick up a boxwrapper unit and deliver it to the box wrapping machine.
- the box and wrappers are automatically registered and no manual operations are necessary.
- the latter system includes a box staying machine which delivers finished boxes to a gluing machine.
- the gluing machine appliesadhesive to wrappers and places the wrappers adhesive side up on a con veyor belt.
- a registration mechanism operates in conjunction with the gluing machine and overlies the conveyor belt.
- Each wrapper and a box are :brought into exact alignmentby the registration mechanism, following which the box-wrapper units are delivered in the previously described manner to the box wrapping inachine.
- This automatic system is faster than the manual system.
- the boxwrapper unit is located at a folding or forming station where a vertically reciprocating forming block and other mechanism fold the wrapper upward against the sidewalls of the box, inward over the upper edges of the box, and downward against the inner surfaces, of the sidewalls.
- the wrapped boxes are ejected in the same direction in which they entered the machine, onto a" discharge table for further handling operations.
- FIG. 1 is a plan of atypical box wrapping system incorporating the box wrapping machine of the present invention.
- FIGS. 211 are diagrammatic perspectives illustrating the sequential operations performed upon a box and wrapper in the box wrapping machine.
- FIG. 12 is an enlarged elevation viewed in the direction of the arrows l2-l2on FIG. 1.'
- FIG. 13 is a sectional plan view taken alongthe plane 13-13 on FIG. 12 at a slightly enlarged scale.
- FIG. 14 is a fragmentary isometric of the transfer carr iage, discharge conveyor, and the transfer carriage drive means of the present invention.
- v FIG. 15 is an enlarged isometric of the charge conveyor.
- FIG; 16 is an enlarged vertical section taken along lines 16- 16 on FIG. 13.
- FIG 17 is a schematic diagram of the electrical control system of the present invention.
- a typical automatic box wrapping system 30 (FIG. 1) is, as disclosed in U.S. Pat; No. 2,867,158, provided at its upstream end with a box staying machine A which forms and ejects upwardly open boxes B onto a box conveyor BC.
- the boxes are fed into a gluing machine C which applies a partial or overallcoating of adhesive to a wrapper W and feeds it, adhesive side up, under a box registering mechanism D.
- a plunger of the box registering mechanism centers a box over a wrapper and brings the box and wrapper into adhesive contact.
- the box and wrapper units BW are conveyed away from the registeringmechanism on a vacuum belt conveyor E.
- the vacuum belt conveyor E operates intermittently, and each box-wrapper unit BW ultimately comes to rest against a transverse stop mechanism G at a pickup station H. While thus stopped, a reciprocable transfer carriage I of a box wrapping machine K advances FIG. 14.1.8.
- the transfer carriage I has picked up the second box unit BW.
- the wrapped box is moved by the carriage away from the forming station into gripped relation with a discharge conveyor N.
- the conveyor moves the wrapped box away from the forming station so that when the second box is finished and transferred to the discharge conveyor, the two boxes are spaced apart.
- the stop mechanism G is conventional and includes a stop bar 30 that is adjustably positioned along the conveying flight 32 of the vacuum conveyor E to immobilize the box unit BW in centered relation with the path of the box unit toward and through the box wrapping machine K.
- Two inwardly directed rods 34 of the stop mechanism G have inner ends which are spaced from the box unit at initial delivery, and which allow slight movement of the box unit away from the transfer carriage during the initial part of the transfer operation so that the box closes a normally open microswitch SW1 mounted on one of the rods to initiate the operation of a later described control circuit which is part of the present invention.
- the transfer carriage I (FIG. 3) is similar to that disclosed in Lange et al, supra, and is provided with recip rocable side members 36, each of which includes a shaft 38 that is slidably mounted in a bearing block 40 (FIG. 4).
- Pedestals 42 (FIG. 14) support the bearing blocks 40 from a slide frame 44 (FIG. 13), on a main frame 43, and an opposed slide frame 46.
- Each slide frame carries various flap manipulating tools at 48 for folding the wrapper W about the box B, and the slide frames are adjustable toward and away from the vertical path of the box for handling different sizes of boxes.
- a slide frame 50 (FIG. 12) and an opposed slide frame, not shown, carry similar flap manipulating tools and are also adjustable toward and away from the vertical path of the box.
- the transfer carriage side members 36 are each clamped in a block 52 which is in turn clamped to a drive link 54.
- a later described drive mechanism 56 is coupled to the center portion of the drive link 54 to reciprocate the transfer carriage.
- pivotally mounted gripping fingers 58 are cammed inward by the box B as the carriage moves toward its FIG. 3 position, and then pivot toward each other to engage the rear corners of the box.
- the switch SW1 is closed during this box gripping operation.
- each gripping finger 58 Forward of each gripping finger 58 is an adjustable stop 60 which engages the front wall of the box, and an ejecting finger 62.
- an adjustable stop 60 which engages the front wall of the box, and an ejecting finger 62.
- the box unit BW blocks the light beam of aphotoelectric unit comprising a light projector 64 and a sensor 66 which are associated with the later described control circuit of the present invention.
- vacuum nozzles 70 which are fixed to the transfer carriage engage the comer portions of the leading flap of the wrapper.
- the nozzles in downstream positions individually overlie support rails 71 (FIG. 14) which support the box unit after they are unsupported by the lower form block LF during discharge from the wrapping machine.
- the box unit BW is supported upon the lower form block LF (FIG. 5) and in vertical alignment with the overhead and descending form blocks UP and MF.
- the upper form block UF is mounted on a vertically reciprocable plunger shaft 72
- the middle form block MF is mounted on two vertically reciprocable plunger rods 74.
- Both form blocks move together downward into the box B and push the upwardly biased lower form block LF and the box unit BW past the flap manipulating tools 48 (FIG. 5) on the slide 50 (FIG. 12) and on the opposed slide, not shown.
- the flap manipulating tools 48 at a first level fold the leading and trailing flaps of the wrapper W upward against the walls of the box B.
- FIG. 6 At a second, lower level (FIG. 6) other of the flap manipulating tools 48 are actuated to fold the end portions. of the upwardly folded flaps around the adjacent corners of the box and against its lateral end walls .while the form blocks UP and MF are within the box.
- the box unit BW (FIG. 7) is moved past further flap manipulating tools 48 which fold the lateral end flaps upward onto the adjacent end walls.
- the upper form block UF At this position, downward movement of the box unit stops, and during a dwell period the upper form block UF is elevated (FIG. 8) and theflap manipulating tools 48 move inward from each side of the'box unit and fold the upstanding free edges of the wrapper into underlying relation with the upper form block while the box unit remains, clamped between the middle and lower form blocks MF and LF.
- the upper form block UP is moved downward into the box unit BW as the flap manipulating tools 48 are retracted.
- the entire assembly returns to the initial starting level where the form blocks are next removed from the completed box.
- four stripper rods 76 are moved downward through apertures in the form blocks and hold the bottom wall of the box against the lower form block LF while the upper and middle form blocks UP and MF are retracted clear of the completed box unit BW.
- the transfer carriage I has gripped the next unfolded box unit BW2 and the ejecting fingers 62 are in a position upstream of the completed box unit.
- the transfer carriage I makes its second movement toward the forming station L, to feed the second incoming box unit BW2.
- the ejecting fingers 62 thus start to eject the finished box, whereupon the box moves into gripped engagement with the discharge conveyor N and out of the box wrapping machine K.
- the discharge conveyor N isolates each box until it is discharged from the wrapping machine to prevent wrinkling of the wrapper and transferring glue from one box to another.
- the following description is directed primarily to these machine elements and the electrical control system. Other portions of the box wrapping machine K are described only to the extent necessary to disclose the present invention.
- power for thebox wrapping machine K is supplied by a motor 80 mounted on the frame 43 of the wrapping machine.
- a drive arrangement not shown, synchronizes the operation of the wrapping machine K with the gluing machine A and the vacuum conveyor'E. Conveyor E is driven intermittently by the gluing machine.
- a variable speed belt transmission 82 powers an electrically disengaged clutch .84 for selectively coupling driving power to an input shaft 86.
- the clutch 84 is unitary with an associated brake which is engaged when the clutch is disengaged.
- the other end of the input shaft 86 (FIG. 16) extends through a housing 88 that contains a speedreducing gear connection to a vertical cam shaft 90 which drives a barrel cam 92.
- the cam 92 makes one complete revolution and the form blocks UP and MF are moved from their FIG. 4 position through the positions illustrated in FIGS. 5-11 (the FIG. 11 position being the same as FIG. 4 position).
- a cam lever 94 (FIG. 12) is pivoted at 96 to a fixed frame member and is provided with a cam follower roller, not shown, which is engaged with a recessed cam track 98 of the barrel cam 92.
- the cam lever 94 operates an overhead main plunger lever 102 that is pivoted at 104 to a pedestal 106.
- a link 108 on themain plunger lever is connected to the plunger shaft 72 which actuates the middle form block MF and also controls the upper form block UF.
- another cam level not shown, has a cam follower engaged with a cam track 110 to actuate, by means of a connecting rod 111 (FIG. 13), an auxiliary plunger lever 112 (FIG. 1) that is connected to a vertically movable stripper yoke 114 that carries the depending stripper rods 76.
- the discharge conveyor N and the transfer carraige I two T- shaped pedestals 116 interconnected by lateral tie bars 1 18 and 1 19 support these structures from the machine frame 43.
- the drive link 54 (FIG. 16) is provided at each end with an arm carrying follower rollers 120 and 122 (see FIG. 13), respectively rotatable about vertical and horizontal axes, which are guided by an elongate fabricated track 124 that is secured to the adjacent pedestal 116.
- the pedestals 42 which support the upstream end of the transfer carriage I are mounted on the adjustable slide members 44 and 46 (FIG. 12).
- the discharge conveyor N is similarly adjustable, as next described.
- Mounting means for the discharge conveyor N includes two generally L-shaped mounting plates 128 and 130, best shown in phantom lines in FIG. 15.
- One convenient manner of adjustably mounting the plates 128 and 130 is to provide a depending flange, as at 132 for the mounting plate 128, which has bolts extending through a slot 134 in the tie bar 119.
- the other end portions of the mounting plates may be similarly mounted in slotted portions of the tie bar 118.
- the drive means for the discharge conveyor N includes a gear 136 (FIGS. 13 and 16) which is mounted on the cam driveshaft 90 and is meshed with a smaller gear 138 on a shaft 140.
- Shaft 140 extends through a bearing bracket 142 atop a part of the frame 43, and is coupled to a chain and sprocket drive train 144.
- the drive train 144 powers ashaft 146 which is held by a bracket 148 on the adjacent pedestal116.
- a similar shaftjand bracket 150 and 152 (FIG. 16) is mounted on the other pedestal 116.
- the shafts146 and 150 carry aligned belt pulleys 154 and 156 that support a drive belt 158.
- the drive belt 158 is trained around an idler pulley 160 and a driven pulley 162 that are supported by the mounting plate 128.
- Pulley 162 is secured to a shaft 164 that extends upward through the mounting plate 128 and carries a pulley 166 which is aligned with three idlerpulleys 168 and a tensioning pulley 170.
- the other half of the discharge conveyor includes a belt 174 which requires a reverse drive arrangement so that the confronting flights of the belts travel in the same direction.
- the drive belt 158 is trained around a driven pulley 176 mounted under the mounting plate 130 and driving a gear 178.
- a gear 180 of the same size and in mesh with the gear 178 is secured to a shaft 182 that drives a pulley 184 for the belt 174.
- Three idler pulleysl86 and a tensioning pulley 188 complete the support means for the belt 174. It will be noted that coextensive and simultaneous lateral adjustment of the mounting plates 128 and 130 does not affect thetension of the drive belt 158.
- finished box units conveyed along the support rails 71 interrupt the light beam, from a projector 190, that otherwise impinges a photoelectric sensor 192.
- the function of these elements. are later described in conjunction with the FIG. 17 control circuit.
- the driven end of the cam shaft 90 (FIG. 16) is lo cated in a housing 194 having an upstanding boss 196 offset from the driveshaft 90 and mounting a pivot shaft 198.
- An elongate lever 200 is pivoted on the shaft 198 and carries a gear segment 202 on its free end. Intermediate its ends, a lateral arm 203 on the lever 200 is provided with an upstanding cam follower roller 204 which is engaged with a cam track recess on the lower end of the cam 92.
- Te cam track oscillates the grear segment 202 and is shown at a dwell position which corresponds to that in which a box unit BW is aligned with the forming blocks to allow time for the wrapper to be folded around the box.
- Gear segment 202 is meshed with a gear 208 and the drive ratio is such that the gear 208 oscillates through an angle of 180.
- a boss 210 in the housing 194 supports the lower end of a shaft 212 which is located on the longitudinal centerline of the transfer carriage I and is driven by the gear 208.
- the upper end portion of shaft 212 extends through a support neck 214 that is fixed to the frame 43, and provides the power for the drive mechanism 56 which reciprocates the transfer carriage I.
- FIG. 17 which includes five camoperated switches that are not illustrated in the present application. Each switch is operated by an individual cam 248 (FIG. 16) that is mounted on an upper extension of the cam driveshaft 90, and this rotates once per box-wrapping cycle.
- the incoming box unit BW is arrested by the stop bar 30 and is adjacent the actuator of the switch SW1.
- the transfer carriage I is moved to position the gripping fingers 58 (FIG. 3) beyond the rear corners of the box unit, the box unit is pushed against the switch actuator and the switch contacts close to momentarily energize the control system.
- Switch SW1 (FIG. 17') is in series with a control relay CR1 in a line 250 extending across power input lines Lland L2. Control relay CR1 is thus energized, and its holding contacts CR-l in a line 252 close.
- a delay timer DT is energized through the closed contacts of switch SW4, normally closed contacts CR2-2, line 255, of the control relay CR2, and the switched contacts CR1-2 of the control relay CR1.
- Contacts DT-l of the timer DT close and energize a clutch solenoid S, line 258.
- the solenoid S disengages the clutch of the electrically operated clutch and brake unit 84 (FIG. 12) so that no power is transmitted to the box wrapping machine from the motor 80, and the brake is set to rapidly stop the machine.
- both control relays CR1 and CR2 are energized, thus opening the contacts CR2-2, line 255, and opening contacts CR1-3, line 256 so that the delay timer DT is electrically isolated and the transfer of the box unit is completed to the forming station L (FIG. 4).
- a control relay CR3, line 253, is connected to another set of contacts of the cam operated switch SW4. An electrical path is thereby completed through control relay contact CR2-1, line 253, and the cam operated switch SW2 to energize the control relay CR3 while the wrapper W is being folded around the box B.
- the cam operated switch SW2, line 252 opens, and the control relays CR1 and CR2 are deenergized This conditions the control system for the above described operations to repeat with the next incoming box unit.
- the box unit at the forming station L has been wrapped and ejected into gripped relation with the belts of discharge conveyor N (FIG. 1 1).-At a given point in the overall cycle, the finished box passes under the light beam projector (FIGS. 13 and 14) and blocks the beam from the photoelectric sensor 192 (FIG. 17, line 262).
- the sensor 192 is operative, when its light beam is interrupted, to energize a control relay CR4 and its normally open holding contacts CR4-1, line 261, close.
- the control relay CR4 remains energized after the finished box clears the photoelectric sensor 192 and is discharged onto the table 0 (FIG. 1).
- the finished box has now generated a control signal that it has clearedthe box wrapping machine.
- the cam operated switch SW5, line 264 closes. If there is no such control signal generated, some malfunction exists between the forming station Land the receiving table 0, and the brake solenoid S is again energized to disengage the clutch, set the brake, and stop the box wrapping machine. This action is initiated by the cam operated switch SW5.
- the contacts of switch SW5 Upon closing, the contacts of switch SW5 enerfize the delay timer DT by means of normally'closed control relay contact CR4-2, line 263, and the switched contacts CR3-2 of the control relay CR3, whereupon the delay time contacts DT-l energize the solenoid S to actuate the clutch and brake 84 (FIG. 12).
- control relay CR4 is energized as previously described, and-the solenoid are electrically isolated by the normally closed but 9 now open contacts CR3-3, line 264, and CR42, lin 263.
- Fig. 17 control system monitors a series of events which, once broken, will result in the stopping of the machine so that the malfunction can be corrected.
- a further important aspect of the control system is that it is initiated by a box unit in position for transfer into the box wrapping machine, thus allowing an occasional missing box unit on'the conveyor E without interrupting the operations upon a box already in the wrapping machine.
- the control systern monitors the feed, wrapping and discharge of the boxes, and interrupts the operation if malfunctions occur, so as to prevent damage to the machine which could otherwise result from the higher'than usual velocities of the components, while the discharge conveyor system N interspaces the finished boxes and maintains the orientation and control of the finished boxes, so that they are delivered to a predetermined location at a predictable time, thereby facilitating further operations by other machinery.
- the control system detects the progressive movement of the boxes and is adapted to quickly and automatically interrupt the operations until a jam or malfunction can be corrected. This minimizes damage to the machine, reduces the number of scrap boxes, and allows the operator greater time for attendant duties away from the wrapping ma chine.
- a box wrapping machine including vertically reciprocable form blocks for folding an adhesively coated wrapper around a box at a forming station of the machine, a horizontally reciprocable transfer carriage 0nd driving pulley connected to said second gear, a powered pulley laterally adjacent one of said mounting plates, an idler pulley laterally adjacent the other of said mounting plates, all of said pulleys lying in a common plane, and an endless drive belt trained around said pulleys, said conveying flights thus moving in a common direction and being arranged for simultaneous and coextensive interspacing adjustment without interrupting their conveying function.
- Apparatus according to claim 1 and box support means comprising a support track secured to each of said mounting plates, each track extending laterally inward below the adjacent conveying flight, the interspacing adjustment of said conveying flights thus effecting adjustment of said box support means.
- a box wrapping system comprising a conveyor for delivering a box and adhesively coated wrapped unit to a pickup station, a box wrapping machine comprising a forming station having vertically reciprocable form blocks for folding the wrapper around the box adjacent said pickup station, and a transfer carriage movable between said sattions to transfer a box-wrapper unit from said pickup station to said forming station; the improvement comprising detector means at said pickup station for detecting the presence of a box-wrapper unit ready for pickup upon advance of said transfer carriage, sensing means intermediate said pickup and forming stations for sensing the passage of a boxwrapper unit picked up by said carriage and conveyed between said stations, power means including an electrically operated clutch for transmitting driving power to said form blocks and to said transfer carriage, control means operating in timed relation with said transfer carraige, and a control circuit responsive to said control means, to said detector and to said sensing means for disengaging said clutch when a box-wrapper unit is detected at said pickup station but is not picked up by downstream of said forming station and
- said box wrapping machine includes a discharge station for discharging wrapped boxes from the wrapping machine, a wrapped box receiving station, a wrapped box sensor for sensing the passage of a wrapped box from said discharge station to said receiving station, said control circuit including means for disengaging said clutch in response to a signal from said timed control means when a box is not sensed by said wrapped box
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Abstract
Description
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US23906772A | 1972-03-29 | 1972-03-29 |
Publications (1)
Publication Number | Publication Date |
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US3797372A true US3797372A (en) | 1974-03-19 |
Family
ID=22900442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US00239067A Expired - Lifetime US3797372A (en) | 1972-03-29 | 1972-03-29 | Box wrapping machine |
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US (1) | US3797372A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4030472A (en) * | 1976-06-16 | 1977-06-21 | Watkins Michael L | Aerial toy and launching stick apparatus |
EP0618066A1 (en) * | 1993-04-01 | 1994-10-05 | Renzo Santini | Machine for wrapping and folding over edges for box making |
FR2779089A1 (en) * | 1998-05-29 | 1999-12-03 | Thierry Ragot | Fabrication method for box providing false wood appearance |
US7360348B2 (en) * | 2002-12-04 | 2008-04-22 | Fujifilm Corporation | Method for controlling manufacture of a sheet material |
CN102248709A (en) * | 2010-05-21 | 2011-11-23 | 爱慕斯股份公司 | Method and equipment for covering box |
CN103286987A (en) * | 2013-06-10 | 2013-09-11 | 饶争力 | Heaven and earth cover box making machine and working principle thereof |
CN106003819A (en) * | 2016-07-22 | 2016-10-12 | 温州科迈机械有限公司 | Paper feeding device for three-dimensional paper box forming machine |
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US2705905A (en) * | 1950-08-28 | 1955-04-12 | Stokes & Smith Co | Box-wrapping systems |
US3038391A (en) * | 1959-12-11 | 1962-06-12 | New Jersey Machine Corp | Container wrapping system |
US3074533A (en) * | 1961-02-28 | 1963-01-22 | Owens Illinois Glass Co | Container handling apparatus |
US3086428A (en) * | 1960-05-20 | 1963-04-23 | Fmc Corp | Box-wrapping system for loosewrap work |
US3321061A (en) * | 1967-05-23 | Bread cooling apparatus | ||
US3616770A (en) * | 1969-01-15 | 1971-11-02 | Lr Ind Ltd | Manufacture of elasticated garments |
US3657976A (en) * | 1969-06-06 | 1972-04-25 | Ian Anthony Fish | Applying sheet material to a box |
-
1972
- 1972-03-29 US US00239067A patent/US3797372A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3321061A (en) * | 1967-05-23 | Bread cooling apparatus | ||
US2705905A (en) * | 1950-08-28 | 1955-04-12 | Stokes & Smith Co | Box-wrapping systems |
US3038391A (en) * | 1959-12-11 | 1962-06-12 | New Jersey Machine Corp | Container wrapping system |
US3086428A (en) * | 1960-05-20 | 1963-04-23 | Fmc Corp | Box-wrapping system for loosewrap work |
US3074533A (en) * | 1961-02-28 | 1963-01-22 | Owens Illinois Glass Co | Container handling apparatus |
US3616770A (en) * | 1969-01-15 | 1971-11-02 | Lr Ind Ltd | Manufacture of elasticated garments |
US3657976A (en) * | 1969-06-06 | 1972-04-25 | Ian Anthony Fish | Applying sheet material to a box |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4030472A (en) * | 1976-06-16 | 1977-06-21 | Watkins Michael L | Aerial toy and launching stick apparatus |
EP0618066A1 (en) * | 1993-04-01 | 1994-10-05 | Renzo Santini | Machine for wrapping and folding over edges for box making |
FR2779089A1 (en) * | 1998-05-29 | 1999-12-03 | Thierry Ragot | Fabrication method for box providing false wood appearance |
US7360348B2 (en) * | 2002-12-04 | 2008-04-22 | Fujifilm Corporation | Method for controlling manufacture of a sheet material |
CN102248709A (en) * | 2010-05-21 | 2011-11-23 | 爱慕斯股份公司 | Method and equipment for covering box |
CN103286987A (en) * | 2013-06-10 | 2013-09-11 | 饶争力 | Heaven and earth cover box making machine and working principle thereof |
CN103286987B (en) * | 2013-06-10 | 2015-07-08 | 东莞市力顺源机械有限公司 | Heaven and earth cover box making machine and working principle thereof |
CN106003819A (en) * | 2016-07-22 | 2016-10-12 | 温州科迈机械有限公司 | Paper feeding device for three-dimensional paper box forming machine |
CN106003819B (en) * | 2016-07-22 | 2017-11-28 | 温州科迈机械有限公司 | The paper feeder of three-dimensional carton forming machine |
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