US2086147A - Machine for making pouches - Google Patents

Machine for making pouches Download PDF

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Publication number
US2086147A
US2086147A US7660936A US2086147A US 2086147 A US2086147 A US 2086147A US 7660936 A US7660936 A US 7660936A US 2086147 A US2086147 A US 2086147A
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United States
Prior art keywords
die
dies
sheet
belts
machine
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Percy M Yeates
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73751—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized
    • B29C66/73752—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized the to-be-joined areas of both parts to be joined being uncured
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8226—Cam mechanisms; Wedges; Eccentric mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/843—Machines for making separate joints at the same time in different planes; Machines for making separate joints at the same time mounted in parallel or in series
    • B29C66/8432—Machines for making separate joints at the same time mounted in parallel or in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/851—Bag or container making machines
    • B29C66/8511—Bag making machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B29D22/003—Containers for packaging, storing or transporting, e.g. bottles, jars, cans, barrels, tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • B29C66/7232—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer
    • B29C66/72327—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered comprising a non-plastics layer consisting of natural products or their composites, not provided for in B29C66/72321 - B29C66/72324
    • B29C66/72328—Paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/729—Textile or other fibrous material made from plastics
    • B29C66/7292—Textile or other fibrous material made from plastics coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7128—Bags, sacks, sachets
    • B29L2031/7129—Bags, sacks, sachets open
    • 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
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • 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
    • B31B2160/102—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from essentially rectangular sheets
    • 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
    • B31B2170/00—Construction of flexible containers
    • 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
    • B31B2241/00—Making bags or boxes intended for a specific use
    • B31B2241/003—Making cigarette boxes
    • 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
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/20—Cutting sheets or blanks
    • 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
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/261—Folding sheets, blanks or webs involving transversely folding, i.e. along a line perpendicular to the direction of movement
    • 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
    • B31B70/26—Folding sheets, blanks or webs
    • B31B70/52—Folding sheets, blanks or webs by reciprocating or oscillating members other than plungers and dies, e.g. by fingers
    • 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
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/68—Uniting opposed surfaces or edges; Taping by stitching, stapling or riveting
    • 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
    • B31B70/74—Auxiliary operations
    • B31B70/92—Delivering
    • B31B70/94—Delivering singly or in succession

Definitions

  • a further and important object is to provide a machine for sealing the ends of the fabric, ⁇
  • the principal features of the inventionconsist in the novel method of folding a sheet of rubber-coated fabric and pressing and sealing the folded portions together to close the ends of a pouch and further, in the novel construction and arrangement of a plurality of heated dies and means for periodi-cally applying pressure against said heated dies to seal the coated folded fabric arranged therebetween.
  • Figure 1 is a plan view of a machine constructed in accordance with this invention.
  • Figure 2 is a sectional elevational view taken on the line 2-2 of Figure 1.
  • Figure 3 is a detail plan View of the sealing mechanism.
  • Figure 4 is a detailed elevational View of the sealing mechanism.
  • Figure 5 is a vertical cross sectional view of 'the sealing mechanism taken on the line 5--5 .of Figure 4.
  • Figure 6 is a plan View of the pouch strip as sealed in the machine.
  • Figure 'I is a plan view showing the pouch as severed from the strip shown in Figure 6.
  • Figure 8 is a plan view of a pouch packed with tobacco.
  • Tobaccopouches are usually formed of a strip of suitable material having one end folded over a portion of the remainder and the edges of the folded-over portion are secured usually by stitching.
  • the present invention has to do with a pouch which is made for a single service only, that is to say, it is expected only to last during the use of the original quantity of tobacco packed therein and a material has been developed for the use of such purpose, of a sheet of paper or very light fabric, over one face of which a surface coating of rubber is placed.
  • a sheet ⁇ I ⁇ of paper or other fabric, rubber-covered on one side and of a width suflicient to form a plurality of pouches, is doubled over as shown in Figure 6, the doubled-over portion being approximately one third of the length.
  • the outer edges 2 of the doubled-over 'strip are then sealed-,ias also are strips 3 intermediate of the width ofthe main sheet and it is the method and means for sealing these strips to which the present invention applies.
  • a plurality of endless carrier ⁇ belts 4 are mounted uponpulleys'5 and 6 carried on shafts 'I and 8 respectively,v mounted horizontally in suitable bearings on a suitable frame or support.
  • a frame structure 9,-'in which are mounted between the upper reaches of the belt and outside of the outer one, the die blocks I0, which are rigidly secured to the base II of the frame 9.
  • These die blocks are preferably heated by means of electric resistances embedded therein which will maintain a uniform temperature of said die blocks throughout their operation.
  • pairs of upright rods I2 which are encircled by coil cornpression springs I3 arranged between the base II and the die-holding bar I4 which is provided with bosses I5 encircling the upright rods.
  • a shaft I 6 is ⁇ horizontally yjournalled in the framev 9 centrally above the bar I4 and on this shaft are mounted a plurality of cams I? which are formed with the concentric portion I8 diverging eccentrically in the portions I9 to the larger concentric portions 20. These cams engage arched spring members 2
  • the belts I being arranged between the respective die blocks, are supported, so that .their upper surfaces are slightly above thetop surfaces of the die blocks I Il, by blocks 22 which are preferably of wood and a sheet of material placed on these belts and extending across the same will be carried over the die blocks, so that when the cams I'I move downwardly they will engage the top surface of the sheet of material being carried by the belts and will press Asame down tightly against the bottom die blocks.
  • a shaft 23 mounted in journal bearings 24 atl 25 which are formed with upturned lugsf 26 lat their extremities which project upwardly between the belts and form stops, against which the strips of material to be operated upon are placed.
  • a bar 21 is rigidly secured to the shaft 23 at one end and rests upon the top of a cam 28 mounted on one end of the shaft I6. This cam is adapted to raise and lower the stop arms 25,V
  • This device is particularly adapted to the manufacture of pouches for packaging tobacco.
  • Sheets of material surfaced with unvulcanized rubber are folded as shown and described in respect to Figure 6 and the folded sheets are placed one at a time upon the belts 4 to engagethe Vstop lugs 26 of the arms 25.
  • the shaft I6 rotates themcam 28Jlowers the. bar 21, thereby lowering the arms 25 so that the lugs are withdrawn vbelow the upper surfaces of thev belts and the foldedA sheet is allowed to move forwardly with the belts toward the dies.
  • the device is extremely simple, but is very effective in its operation, performing the function of pressing and vulcanizing dividing areas in a folded-over sheet. ⁇
  • the surfaces of the dies may be cross-lined or corrugated to more intimately pressthe contacting surfaces together along the sealed portion andthus form a more secure union of the surfaces.
  • a machine for making pouches comprising a plurality of narrow heatedI die blocks spaced apart, means for guiding a'sheet of material over said die blocks, a plurality of dies arrangedindividually one adjacent toV each of said'heateddie blocks, andl means for moving one ofsaid diesets into pressure contact withthe other of said die sets to compress and heat a sheet of material placed therebetween.V
  • a machinefor making pouches comprising ai rigid base having a. plurality of narrowdie blocks arranged thereon and spaced apart, means for applying heat to said die blocks, a bar extending v over said die blocks and having dies secured thereto, means for moving said bar to bring the dies thereon into engaging pressure Contact with the dies arranged on said base, and means for raising said die bar and dies to'clear the heated dies' periodically,
  • a machine for making pouches comprising a base, a plurality of heated dies mounted on said base and spaced apart, guides arranged at each end of said base, a die bar slidably mounted on said guides, compression springsarranged to hold said die bar in a raised position, diessecured to said die bar in alignment with the heated dies mounted on the base, cams mounted to engage said die bar to press same against said compression springs and to bring the surfaces of the upper dies intopressure contact over the lower dies.
  • a machine for making pouches comprising a base, a plurality of heated dies mounted thereon having narrow top faces, travelling belts arranged between said dies and adapted to carry asheet over said fdies, vertical; guides extending upwardly from the base, a die bar slidably mounted on said vertical guides having die blocks regis-.
  • a machine for making pouches as claimed in claim 4 having contact springs mounted on the ⁇ die bar to be engaged-by said cams to apply a springpressure upon a sheet held between the dies.
  • a machine for making pouches comprising a plurality of spaced-apart dies, a plurality of endless belts spacedapart and extending between said spaced dies adapted to carry a sheet thereover, arms having stop lugs arranged between said belts, a movable die support arranged above the aforesaid dies having die blocks to register with the aforesaid-dies, means for periodically moving said die-supporting member to engage a sheet carried over the lower dies by said belts, and means operated by said upper die-operating member for periodically lowering said stop arms to release ⁇ a sheet held thereby in timed relation 'to move said sheet by said belt to a pre-A determined position to be engaged by the die-operating cams.
  • a machine for making vpouches comprising a plurality of spaced dies, a pluralityof travelling belts extending between saiddies to carry a sheet thereover, a shaft extending transversely of the machine having arms extending between said belts, Vsaid arms having stop lugs thereon extending above the belts andto form a stop tohold a sheet placed on said belts, a verticallymovable, die member adapted to be moved into engagement, with ⁇ the aforesaiddies, .a shaft extending over said die member, cams mountedon said shaft for gaging said latter cam to lower said stoparms y in predetermined relation vto the movement of the dieoperating cams.

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Description

July 6, 1937. P. M.Y YEATEs 2,086,141-
MACHINE FOR MAKING POUCHES Filed April 27, 1936 2 Sheets-Sheet l z l I l I r E T o o n 1o f 16 w10 1O` 2s "I S\ 27%" l tE I O O- J` E i, l, l E
h? wzl/o o zg l 5 0 4 I J Q July 6, 1937. P. M. YEATEs MACHINE FOR MAKING POUCHES Filed April 27, 1936 v2 Sheets- Sheet 2 Patented July 6, 1937 UNITED STATES PATENT OFFICE MACHINE FOR MAKING POUCHES Percy M. Yeates, Toronto, Ontario, Canada `Application April 27, 1936, Serial No.776,609 7 claims. (c1, 1s`1e)` for the use of the smoker until the quantity of the packaged tobacco is exhausted.
A further and important object is to provide a machine for sealing the ends of the fabric,`
from which the pouches are constructed, in a very effective and convenient manner and which will be very easily operated.
The principal features of the inventionconsist in the novel method of folding a sheet of rubber-coated fabric and pressing and sealing the folded portions together to close the ends of a pouch and further, in the novel construction and arrangement of a plurality of heated dies and means for periodi-cally applying pressure against said heated dies to seal the coated folded fabric arranged therebetween.
In the accompanying drawings, Figure 1 is a plan view of a machine constructed in accordance with this invention.
Figure 2 is a sectional elevational view taken on the line 2-2 of Figure 1.
Figure 3 is a detail plan View of the sealing mechanism.
Figure 4 is a detailed elevational View of the sealing mechanism.
Figure 5 is a vertical cross sectional view of 'the sealing mechanism taken on the line 5--5 .of Figure 4.
Figure 6 is a plan View of the pouch strip as sealed in the machine.
Figure 'I is a plan view showing the pouch as severed from the strip shown in Figure 6.
Figure 8 is a plan view of a pouch packed with tobacco.
Tobaccopouches are usually formed of a strip of suitable material having one end folded over a portion of the remainder and the edges of the folded-over portion are secured usually by stitching.
The present invention has to do with a pouch which is made for a single service only, that is to say, it is expected only to last during the use of the original quantity of tobacco packed therein and a material has been developed for the use of such purpose, of a sheet of paper or very light fabric, over one face of which a surface coating of rubber is placed.
According to the present invention a sheet `I `of paper or other fabric, rubber-covered on one side and of a width suflicient to form a plurality of pouches, is doubled over as shown in Figure 6, the doubled-over portion being approximately one third of the length.
The outer edges 2 of the doubled-over 'strip are then sealed-,ias also are strips 3 intermediate of the width ofthe main sheet and it is the method and means for sealing these strips to which the present invention applies.
In the apparatus shown in Figures 1 and 2, a plurality of endless carrier `belts 4 are mounted uponpulleys'5 and 6 carried on shafts 'I and 8 respectively,v mounted horizontally in suitable bearings on a suitable frame or support. Intermediate of the length of the belts 4, thatv is, approximately midway between the pulleys '5 and 6, is arranged a frame structure 9,-'in which are mounted between the upper reaches of the belt and outside of the outer one, the die blocks I0, which are rigidly secured to the base II of the frame 9. These die blocks are preferably heated by means of electric resistances embedded therein which will maintain a uniform temperature of said die blocks throughout their operation.
At either end of the base and close to the end supports of the frame 9- are arranged pairs of upright rods I2 which are encircled by coil cornpression springs I3 arranged between the base II and the die-holding bar I4 which is provided with bosses I5 encircling the upright rods.
A shaft I 6 is `horizontally yjournalled in the framev 9 centrally above the bar I4 and on this shaft are mounted a plurality of cams I? which are formed with the concentric portion I8 diverging eccentrically in the portions I9 to the larger concentric portions 20. These cams engage arched spring members 2| mounted on the die bar I4 and upon the cams being rotated the eccentric portions I9 press the die bar downwardly into close engaging contact with the heated dies mounted on the base. l
The belts I being arranged between the respective die blocks, are supported, so that .their upper surfaces are slightly above thetop surfaces of the die blocks I Il, by blocks 22 which are preferably of wood and a sheet of material placed on these belts and extending across the same will be carried over the die blocks, so that when the cams I'I move downwardly they will engage the top surface of the sheet of material being carried by the belts and will press Asame down tightly against the bottom die blocks.A
A shaft 23 mounted in journal bearings 24 atl 25 which are formed with upturned lugsf 26 lat their extremities which project upwardly between the belts and form stops, against which the strips of material to be operated upon are placed.
A bar 21 is rigidly secured to the shaft 23 at one end and rests upon the top of a cam 28 mounted on one end of the shaft I6. This cam is adapted to raise and lower the stop arms 25,V
the lowering period being gauged in definite rela-H tion to the location of the cams I'I in respect to the same to clear the sheets and the belts carry them away from the dies.
This device is particularly adapted to the manufacture of pouches for packaging tobacco.
Sheets of material surfaced with unvulcanized rubber are folded as shown and described in respect to Figure 6 and the folded sheets are placed one at a time upon the belts 4 to engagethe Vstop lugs 26 of the arms 25. As the shaft I6 rotates themcam 28Jlowers the. bar 21, thereby lowering the arms 25 so that the lugs are withdrawn vbelow the upper surfaces of thev belts and the foldedA sheet is allowed to move forwardly with the belts toward the dies. i
As the folded-over portion comes between the die blocks, the cams, I 'I'force the die bar I4 down-VV wardly so that the dies clamp the folded portion tightly down againstthe heated bottom die blocks and hold the folded sheet tightly in contact with the heated die blocks a suficient length of time for the thin rubber coatings'of the adjacent surfaces of the folded sheets to be vul- Y canized together between Ythe contacting surfaces of the dies', which thus vulcanize the narrow edge-- strips 2 and the wider intervening strips 3.
Immediately upon the cams I'l releasing the die bar I4 the springs I3 move the bar upwardly and I remove the upper dies from contact with the folded sheet and the belts, which-are constantly in operation and which slip Vunder the, sheet whileV it is being held by the dies, or which slip on a friction clutch on the pulley drive, then move the sheet onward and the composite sheet is then severed along the dotted line bisecting the vulcanized portions 3 and each sheetjis -divided into a plurality of pouches whichare then ready to receive'the packing of tobacco in the folded-over portion.
The device is extremely simple, but is very effective in its operation, performing the function of pressing and vulcanizing dividing areas in a folded-over sheet.`
Itwill be understood that the surfaces of the dies may be cross-lined or corrugated to more intimately pressthe contacting surfaces together along the sealed portion andthus form a more secure union of the surfaces.
What I claim as my invention is:-
l. A machine for making pouches, comprising a plurality of narrow heatedI die blocks spaced apart, means for guiding a'sheet of material over said die blocks, a plurality of dies arrangedindividually one adjacent toV each of said'heateddie blocks, andl means for moving one ofsaid diesets into pressure contact withthe other of said die sets to compress and heat a sheet of material placed therebetween.V
2. A machinefor making pouches, compris` ing ai rigid base having a. plurality of narrowdie blocks arranged thereon and spaced apart, means for applying heat to said die blocks, a bar extending v over said die blocks and having dies secured thereto, means for moving said bar to bring the dies thereon into engaging pressure Contact with the dies arranged on said base, and means for raising said die bar and dies to'clear the heated dies' periodically,
3. A machine for making pouches comprising a base, a plurality of heated dies mounted on said base and spaced apart, guides arranged at each end of said base, a die bar slidably mounted on said guides, compression springsarranged to hold said die bar in a raised position, diessecured to said die bar in alignment with the heated dies mounted on the base, cams mounted to engage said die bar to press same against said compression springs and to bring the surfaces of the upper dies intopressure contact over the lower dies.
4. A machine for making pouches, comprising a base, a plurality of heated dies mounted thereon having narrow top faces, travelling belts arranged between said dies and adapted to carry asheet over said fdies, vertical; guides extending upwardly from the base, a die bar slidably mounted on said vertical guides having die blocks regis-. tering with the die blocks on saidv base, compression springs arranged between said die bar and the base to hold the die bar above said belts so that the dies are clear of the sheet carriedl thereby, a shaft extending over said die baiggcams mounted on said shaft engaging said die bar and having eccentric portions adapted to move the die bar downwardly, and concentric portions adapted` to hold the die bar in its downward position to squeeze a sheet'ofmaterial carried by said belts between said dies.l
5. A machine for making pouches as claimed in claim 4 having contact springs mounted on the` die bar to be engaged-by said cams to apply a springpressure upon a sheet held between the dies. f
6. A machine for making pouches, comprising a plurality of spaced-apart dies, a plurality of endless belts spacedapart and extending between said spaced dies adapted to carry a sheet thereover, arms having stop lugs arranged between said belts, a movable die support arranged above the aforesaid dies having die blocks to register with the aforesaid-dies, means for periodically moving said die-supporting member to engage a sheet carried over the lower dies by said belts, and means operated by said upper die-operating member for periodically lowering said stop arms to release` a sheet held thereby in timed relation 'to move said sheet by said belt to a pre-A determined position to be engaged by the die-operating cams. Y Y
7. A machine for making vpouches comprising a plurality of spaced dies, a pluralityof travelling belts extending between saiddies to carry a sheet thereover, a shaft extending transversely of the machine having arms extending between said belts, Vsaid arms having stop lugs thereon extending above the belts andto form a stop tohold a sheet placed on said belts, a verticallymovable, die member adapted to be moved into engagement, with `the aforesaiddies, .a shaft extending over said die member, cams mountedon said shaft for gaging said latter cam to lower said stoparms y in predetermined relation vto the movement of the dieoperating cams.
, PER'CY M, YEAT'ES.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832094A (en) * 1954-06-25 1958-04-29 Fred A Groth Machine for draw or drape plastic molding
CN107215005A (en) * 2017-05-21 2017-09-29 贵州西牛王印务有限公司 A kind of polybag collecting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832094A (en) * 1954-06-25 1958-04-29 Fred A Groth Machine for draw or drape plastic molding
CN107215005A (en) * 2017-05-21 2017-09-29 贵州西牛王印务有限公司 A kind of polybag collecting device

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