Robotic system for erecting a one-piece insulating container
11141948 · 2021-10-12
Inventors
Cpc classification
B31B50/262
PERFORMING OPERATIONS; TRANSPORTING
B65D81/3858
PERFORMING OPERATIONS; TRANSPORTING
B31B2120/40
PERFORMING OPERATIONS; TRANSPORTING
B65D81/1275
PERFORMING OPERATIONS; TRANSPORTING
B31B2150/001
PERFORMING OPERATIONS; TRANSPORTING
B31B2105/0024
PERFORMING OPERATIONS; TRANSPORTING
International classification
B31B50/00
PERFORMING OPERATIONS; TRANSPORTING
B31B50/26
PERFORMING OPERATIONS; TRANSPORTING
Abstract
An automated case erector for erecting a one-piece insulating container and a method of automated case erecting are provided. The automated erector includes a case blank feeder for sequentially feeding a series of flat case blanks onto a conveyor, an insulation securing station for securing insulating members to the case blank, and a case erecting assembly for forming the combination of case blanks and insulating members secured thereto into a fully erected, three-dimensional container by simultaneously folding the combination of case blanks and insulating members.
Claims
1. A method of erecting a case, said method comprising the steps of: providing an automated case erector apparatus comprising: a case blank feeder configured to sequentially feed a series of flat case blanks onto a conveyor, an insulation securing station configured to secure an insulation template to each respective flat case blank on the conveyor, and a case erecting assembly configured to receive each case blank having a respective insulation template secured to the case blank and to simultaneously fold portions of each flat case blank and corresponding portions of each insulation template secured to the case blank into an erected case; providing a plurality of case blanks; providing a plurality of insulation templates; sequentially feeding the case blanks, by the case blank feeder, onto the conveyor; securing an insulation template to each respective case blank on the conveyor, by the insulation securing station; and erecting a case, by the case erecting assembly, from a combination of each case blank and a respective insulation template by simultaneously folding the case blank and the insulation template into a case having an insulated interior.
2. The method of claim 1, wherein the case erector apparatus further comprises an adhesive application system configured to apply fluidized adhesive onto a surface of each case blank on the conveyor, wherein the step of securing an insulation template to each respective case blank comprises applying adhesive to each case blank and placing the insulation template onto the case blank.
3. The method of claim 1, wherein each case blank comprises a plurality of tabs, wherein the case erector apparatus further comprises an adhesive application system configured to apply fluidized adhesive onto a surface of each tab, wherein the step of erecting a case by simultaneously folding the case blank and the insulation template comprises applying adhesive to each tab and securing sections of each case blank together by folding the tabs.
4. The method of claim 1, wherein the case blank feeder comprises a robotic arm comprising a pick-up head having a footprint that conforms to the shape of each case blank.
5. The method of claim 1, wherein the insulation securing station comprises a robotic arm comprising a pick-up head having a footprint that conforms to the shape of each case blank.
6. The method of claim 1, wherein the case erecting assembly comprises a robotic arm comprising a pick-up head having a footprint that conforms to the shape of each case blank.
7. The method of claim 1, wherein each insulation template comprises two insulating members, wherein the step of securing an insulation template to each respective case blank comprises securing both insulating members to the case blank.
8. The method of claim 1, wherein each insulation template comprises fibers contained within an encapsulating material.
9. An automated case erector apparatus comprising: a case blank feeder configured to sequentially feed a series of flat case blanks onto a conveyor; an insulation securing station configured to secure an insulation template to each respective flat case blank on the conveyor; and a case erecting assembly configured to receive each case blank having a respective insulation template secured to the case blank and to simultaneously fold portions of each flat case blank and corresponding portions of each insulation template secured to the case blank into an erected case having an insulated interior.
10. The apparatus of claim 9, wherein the case erector apparatus further comprises an adhesive application system configured to apply fluidized adhesive onto a surface of each case blank on the conveyor.
11. The apparatus of claim 9, wherein each case blank comprises a plurality of tabs, wherein the case erector apparatus further comprises an adhesive application system configured to apply fluidized adhesive onto a surface of each tab.
12. The apparatus of claim 9, wherein the case blank feeder comprises a robotic arm comprising a pick-up head having a footprint that conforms to the shape of each case blank.
13. The apparatus of claim 9, wherein the insulation securing station comprises a robotic arm comprising a pick-up head having a footprint that conforms to the shape of each case blank.
14. The apparatus of claim 9, wherein the case erecting assembly comprises a robotic arm comprising a pick-up head having a footprint that conforms to the shape of each case blank.
15. The apparatus of claim 9, wherein each insulation template comprises two insulating members.
16. The apparatus of claim 9, wherein each insulation template comprises fibers contained within an encapsulating material.
Description
DESCRIPTION OF THE DRAWINGS
(1) These and other features, aspects, and advantages of the present disclosure will become better understood with regard to the following description, appended claims, and accompanying drawings where:
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DETAILED DESCRIPTION
(7) In the Summary above and in this Detailed Description, and the claims below, and in the accompanying drawings, reference is made to particular features, including method steps, of the invention. It is to be understood that the disclosure of the invention in this specification includes all possible combinations of such particular features. For example, where a particular feature is disclosed in the context of a particular aspect or embodiment of the invention, or a particular claim, that feature can also be used, to the extent possible, in combination with/or in the context of other particular aspects of the embodiments of the invention, and in the invention generally.
(8) The term “comprises” and grammatical equivalents thereof are used herein to mean that other components, steps, etc. are optionally present. For example, a system “comprising” components A, B, and C can contain only components A, B, and C, or can contain not only components A, B, and C, but also one or more other components.
(9) Where reference is made herein to a method comprising two or more defined steps, the defined steps can be carried out in any order or simultaneously (except where the context excludes that possibility), and the method can include one or more other steps which are carried out before any of the defined steps, between two of the defined steps, or after all the defined steps (except where the context excludes that possibility).
(10) In accordance with the present disclosure, an automated case erector apparatus 20 is provided.
(11) The erected container 10 is designed to provide a completely enclosed interior space that is cushioned and insulated on all sides. The case blank is a template 100 configured to transform from a generally flat configuration, as shown in
(12) Each insulation template 200 comprises at least one insulating member. In a preferred embodiment, each insulation template 200 may comprise two separate insulating members 200a and 200b. Each insulating member comprises a soft, flexible material that can be readily compressed and deformed to enable the template 200 to conform to the shape formed by the case blank 100 and to provide cushioning and insulation for items placed within the erected container 10. Each insulating member preferably comprises cotton fibers to act as a cushioning agent. In one embodiment, each insulating member may comprise a bi-component fiber including cotton fibers and another type of fiber, such as polyester fibers or polyethylene fibers, which may be present in an amount sufficient to hold the cotton fibers together in order to form a distinct, defined section of insulating material. The thickness of each insulating member may vary depending on the dimensions of the container and the desired amount of cushioning or insulation to be provided therein. Each insulating member is preferably encapsulated and sealed within a flexible plastic material such as a bag or a film. For instance, the insulating material of each insulating member may be encapsulated within polyethylene plastic or a polyester sheet. The external layer of each insulating member and/or the insulating material contained therein may be biodegradable. The encapsulating material ensures that the insulation is contained and isolated from the shipped contents within the interior of the container. The encapsulating material also facilitates gripping of the insulating members by the automated case erector 20, as well as securing the insulating members to the case blank 100 prior to folding the combination of case blank and insulating members into a three-dimensional shape.
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(14) The case blank feeder 300 is configured to sequentially feed a plurality of case blanks 100 stacked face-to-face. The stack may be replenished as needed by an operator using a forklift or similar means. In a preferred embodiment, as shown in
(15) Once a case blank 100 is fed onto the conveyor 330, the case blank moves along a line of conveyance through a first adhesive application system, which is preferably a glue nozzle system 340, as shown in
(16) As previously noted, the case blank 100 and insulation template 200 shown in
(17) In the particular embodiment of case blank 100 described herein for the purpose of describing the case erector 20, the case blank 100 may preferably have a “T” shape and be divided into six sections 110, 120, 130a, 130b, 130c, and 130d, with each section corresponding to one of a top, a bottom, and four sides, respectively, of the container 10, as shown in
(18) In a preferred embodiment, the section 110 that forms the bottom of the container has two opposing tabs 140a and 140b for securing the bottom section 110 to opposing side sections 130b and 130d. In addition, the section 120 that forms the top of the container preferably has three tabs 140e, 140f, and 140g attached to three respective sides of the top section 120. A fourth side of the top section 120 is directly attached to side section 130a. Side section 130a additionally has two opposing tabs 140c and 140d for securing side section 130a to opposing, adjacent side sections 130b and 130d. The tabs 140 preferably have beveled edges so that the tabs do not overlap once the case blank 100 has been formed into a three-dimensional box 10, as shown in
(19) In addition, fold lines separate sections 110, 130a, and 120 from the tabs attached thereto to facilitate folding the tabs when forming the container. The tabs 140 are relatively narrow strips of material relative to the case blank sections to which the tabs are attached. Preferably, only enough material is used for the tabs 140 to adequately secure the container together, as discussed below, to achieve a desired container strength for holding a desired content weight without using excess material. In a preferred embodiment, the tabs 140 are each about 2 inches in width. In another preferred embodiment, the case blank sections are each about 12 inches in length and 12 inches in width.
(20) In a preferred embodiment, the insulation template 200 comprises two insulating members 200a and 200b, as shown in
(21) The insulation template 200 is sized, shaped, and secured to the case blank 100 such that when the case blank 100 is manipulated to form a box, the insulation template 200 cushions and insulates the top, bottom, and each side of the formed box, as best shown in
(22) Once the insulating members 200 are secured to the case blank 100 by the insulation securing station 310, the case blank is moved by the conveyor 330 along the line of conveyance through a second adhesive application system, which is preferably also a glue nozzle system 350, as shown in
(23) Once adhesive is applied to the tabs 140 by the second glue nozzle system 350, the unit case blank 100 with insulating members 200 secured thereto is moved by the conveyor 330 along the line of conveyance to the case erecting assembly 320. The case erecting assembly 320 is configured to receive each case blank 100 having a respective insulation template 200 secured to the case blank 100 and to simultaneously fold portions of each flat case blank 100 and corresponding portions of each insulation template 200 secured to the case blank 100 into an erected case 10. Thus, the case erecting assembly 320 is an automated system that forms the generally flattened combination of case blank and insulating members secured thereto into a three-dimensional container. Preferably, the case erecting assembly 320 may utilize a robotic arm 322 to pick up the combination and move it as a unit into the erecting assembly 320 for case forming. A variety of case erectors are currently known in the art for forming cases from blanks of varying shapes and sizes by folding the blanks along fold lines in a variety of configurations. It should be understood that the case erecting assembly 320 of the present case erector 20 may be adapted to form an insulating one-piece container from a variety of case blanks and associated insulation and still fall within the scope of the present disclosure.
(24) Once each combination of case blank and insulating members reaches the case erecting assembly 320, the assembly preferably forms the case 10 by first folding sections 130b and 130d upward so that these sections are positioned at a 90-degree angle relative to section 130c. The conveyor 330 or robotic arm 322 may then move the combination over a forming mandrel for forming the case. The robotic arm 322 or a separate head associated with the case erecting assembly 320 may then push downward on section 110 to move the combination downward through the mandrel to form the case. This action folds the case blank so that sections 130c and 130a (and consequently 130b and 130d because they have already been folded to a 90-degree angle) are at a 90-degree angle to section 110, which forms the bottom of the container. When the case blank 100 is folded along the fold lines, the insulating members 200 are simultaneously folded along corresponding “lines” on the insulating members. To facilitate folding the insulating members, the insulating members may optionally be mitered along a corresponding fold line. For instance, a linear “V” cut may be made in each insulating member 200 along the line where the member is folded so that the insulating material contained within the encapsulating bag does not have to bend when folding the insulating members. Both insulating members 200a and 200b may have such mitering along all fold lines.
(25) After all of the side sections 130 have been appropriately folded, the combination may be pushed farther down into the forming mandrel to fold tabs 140a and 140b upward to a 90-degree angle. Because adhesive has been applied to the tabs, this action secures bottom section 110 to side sections 130b and 130d. The case erecting assembly 320 may then fold tabs 140c and 140d each to a 90-degree angle to secure side section 130a to side sections 130b and 130d. Once these folds have been made, the container 10 is formed with the lid 120 open at a 90-degree angle, as shown in
(26) The final step is to fold section 120, which forms the lid of the container, to close the container. Section 120 preferably has three tabs 140e, 140f, and 140g on three sides. Tabs 140e and 140f may be folded to secure the lid 120 to sidewall sections 130b and 130d, respectively, and tab 140g may be folded to secure the lid 120 to sidewall section 130c. Because items for shipping will later be placed into the container for shipping the items, the step of closing the lid is preferably done manually by a user at a later time. Thus, adhesive may optionally not be applied by the second glue nozzle system 350 to the tabs attached to the lid. In addition, to allow the user to open and close the lid for reuse, tabs 140e, 140f, and 140g may optionally have re-sealable adhesive strips secured thereto that allow repeated opening and closing of the lid. Alternatively, a user may use tape or a similar adhesive to secure the lid closed before shipping, and the tape may later be removed to open the container.
(27) Once the top section 120 is folded to close the lid of the container, the container will be closed by a padded top wall, which is part of insulating member 200b. At this point, the container 10 defines a completely enclosed, padded interior volume in which items desired for shipment may be housed during transit. The size and shape of the insulating members 200a and 200b are adapted so that the members fit flush together and flush around the entire interior of the container to form a complete thermal envelope within the container. As used herein, this container is referred to as a “one-piece” insulating container, meaning that the exterior of the container (formed by the case blank 100) and the insulation disposed within the container are secured together to form a single unit that may be manipulated into a three-dimensional container using automated machinery as a unit or optionally manually as a unit. This differs from known shipping containers which require separate installation of insulating material after constructing or forming the shipping container.
(28) The dimensions of each component of the container 10 described herein may be adjusted to form containers of varying dimensions. For instance, the case blank 100 and/or insulation template 200 discussed above may be shaped and sized to correspond to standard sized boxes or containers used by the United States Postal Service or other freight carriers, such as FedEx or UPS, for shipping fragile or temperature-sensitive items.
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(30) In a preferred embodiment, as shown in
(31) The devices and methods shown and described herein are exemplary. Though certain characteristics of the present disclosure are described above, the description is illustrative only. It is understood that versions of the container disclosed above may come in different forms and embodiments. Additionally, it is understood that one of skill in the art would appreciate these various forms and embodiments as falling within the scope of the invention as disclosed herein.