Claims
- 1. An apparatus for applying a twist-tie to a surface of a container, comprising:
- a frame assembly;
- a payout mechanism coupled to the frame assembly, the payout mechanism holding a supply of twist-tie material wherein at least a portion of the twist-tie material is metallic;
- means coupled to the frame assembly for extracting a continuous length of twist-tie material from the supply of twist-tie material and for cutting a twist-tie of a desired length from the continuous length of twist-tie material; and
- a twist-tie applicator including a rotatable disc having a magnetic mechanism that creates a magnetic force for removing the twist-tie from the extracting and cutting means and for holding the full length of the twist-tie stationary relative to the disc as the disc rotates for application of the twist-tie to the surface of the container.
- 2. The application apparatus of claim 1 wherein the extracting and cutting means includes:
- a drive roller coupled to the drive motor, the continuous length of twist-tie material passing over the drive roller; and
- a feed arm assembly including:
- a movable lever arm having a rotatable feed roller; and
- an actuating means for moving the lever arm between a first position, wherein the feed roller is immediately adjacent the drive roller and in contact with the continuous length of twist-tie material to cause the feed roller to extract twist-tie material from the payout mechanism, and a second position wherein the feed roller is spaced from the drive roller and no extraction of twist-tie material occurs.
- 3. The application apparatus of claim 2 wherein the feed arm assembly further includes a cutoff knife, and wherein the actuating mechanism moves the cutoff knife between a retracted state wherein the cutoff knife is spaced from the continuous length of twist-tie material, and an extended state wherein the cutoff knife contacts the continuous length of twist-tie material to cutoff the twist-tie of desired length.
- 4. The application apparatus of claim 3 wherein the retracted state of the cutoff knife corresponds to the first position of the feed roller, and wherein the extended state of the cutoff knife corresponds to the second position of the feed roller.
- 5. The application apparatus of claim 4 wherein the actuating means includes a pneumatically driven piston/cylinder assembly.
- 6. The application apparatus of claim 1 and further including:
- a dispensing mechanism mounted to the frame assembly adjacent to the rotatable disc, the dispensing mechanism including an extrusion nozzle for selectively dispensing an adhesive material onto at least a portion of the twist-tie, the adhesive material acting to secure the twist-tie to the surface of the container upon the application of the twist-tie to the surface of the container from the rotatable disc.
- 7. The application apparatus of claim 1 wherein the payout mechanism includes:
- a rotatable spool for holding the supply of twist-tie material;
- a brake means selectively engageable with the spool, the brake means having a released state wherein the spool is allowed to rotate freely and the continuous supply of twist-tie material can be extracted from supply of twist-tie material on the spool, and an engaged state wherein rotation of the spool is prevented, and the brake means including:
- a belt for contacting the spool;
- an extensible rod of a piston and cylinder system, the extensible rod having an end connected to the belt wherein the extensible rod is selectively moveable to a first position corresponding to the released state of the brake means and to a second position corresponding to the engaged state of the brake means.
- 8. The application apparatus of claim 7 wherein the payout mechanism further includes:
- a pivotable dancer arm having a guide roller thereon over which the twist-tie material travels, the position of the dancer arm relative to the spool and brake means controlling whether the brake means is in the released state or the engaged state.
- 9. The application apparatus of claim 2 and further including:
- a conveyor assembly mounted on the frame assembly and driven by the drive motor, the conveyor assembly being configured to move a container relative to the rotatable disc for the application of a twist-tie from the rotatable disc to the surface of the container.
- 10. The application apparatus of claim 9 wherein the conveyor assembly includes:
- a first conveyor mechanism configured to engage an upper edge of the container; and
- a second conveyor mechanism configured to support a bottom edge of the container.
- 11. The application apparatus of claim 9 wherein the conveyor assembly includes:
- a first pair of spaced upper and lower continuous, resilient belt members; and
- a second pair of spaced upper and lower continuous, resilient belt members, the second upper and lower belt members being immediately adjacent the first upper and lower belt members, such that a container is capable of being received and supported between opposed belt members to be conveyed relative to the rotatable disc.
- 12. The application apparatus of claim 1 and further including:
- a stripper member mounted to the frame assembly adjacent the rotatable disc for separating the twist-tie from the rotatable disc for application to the surface of the container, the stripper member being spaced from a peripheral edge of the rotatable disc and having a single blade portion configured and aligned to separate the twist-tie from the magnetic force holding the twist-tie.
- 13. The application apparatus of claim 12 and further including a plurality of lamination rollers disposed adjacent the stripper member and the rotatable disc, the rollers acting to urge the container and twist-tie applied thereto against the stripper member and the rotatable disc to insure uniform contact between the container and the twist-tie, each roller being rotatably mounted to one of a plurality of lever arms wherein each respective lever arm has a first end pivotally mounted to the frame assembly and each respective lever arm has a second end connected to a tension spring, the spring connecting the respective lever arms together.
- 14. The application apparatus of claim 1 wherein the rotatable disc of the twist-tie applicator further includes a peripheral edge defining a channel with a flat base, the channel being configured to receive the twist-tie so that a longitudinal axis of the twist-tie is aligned substantially parallel with a longitudinal axis of the channel and so that the twist-tie is held substantially flat within the channel directly against the base of the channel by the magnetic force of the magnetic mechanism.
- 15. A method of applying a twist-tie to a surface of a container comprises the steps of:
- actuating an extracting and cutting mechanism to extract a continuous length of twist-tie material from a supply of twist-tie material wherein at least a portion of the twist-tie is metallic;
- actuating the extracting and cutting mechanism to cut a twist-tie of a desired length from the continuous length of twist-tie material;
- rotating a magnetic disc that provides a magnetic force sufficient to remove the twist-tie from the extracting and cutting mechanism and to hold the full length of the twist-tie stationary relative to the magnetic disc as the disc rotates, the disc being configured so that the twist-tie is held substantially flat within and directly against a base of the channel of a peripheral edge of the disc by the magnetic force of the disc and configured so that a longitudinal axis of the twist-fie is aligned substantially parallel with a longitudinal axis of the channel of the peripheral edge Of the disc;
- applying a quantity of adhesive material to at least a portion of the twist-tie; and further rotating the magnetic disc to apply the twist-tie to a surface of a container.
- 16. The method of claim 15 wherein the container is a multiple serving, recloseable, flexible packaging container.
- 17. An apparatus for applying a twist-fie to a surface of a container, the twist-tie of the type being substantially made of a nonmetallic material and having at least one metallic rib extending the length of the twist-tie, the apparatus comprising:
- a frame assembly;
- a payout mechanism coupled to the frame assembly, the payout mechanism holding a supply of twist-tie material;
- means coupled to the frame assembly for extracting a continuous length of twist-tie material from the supply of twist-tie material and for cutting a twist-tie of a desired length from the continuous length of twist-tie material; and
- a twist-tie applicator for receiving the twist-tie from the extracting and cutting means and for properly orienting the twist-tie so that the twist-tie can be applied to the surface of the container in a desired aligned orientation relative to the container, the twist-tie applicator including:
- a rotatable disc including a peripheral edge having a channel, the channel having a flat base and being configured so that the twist-tie can lie substantially flat against the base of the channel within the channel with a longitudinal axis of the twist-tie aligned substantially parallel with the longitudinal axis of the channel; and
- a plurality of magnetic elements mounted on the peripheral edge of the rotatable disc to form a substantially continuous extent of magnetic elements about the peripheral edge, the magnetic elements providing a magnetic force to hold the twist-tie directly against and stationary relative to the flat base of the channel of the disc as the disc rotates.
- 18. The apparatus of claim 17 and further including:
- a dispensing mechanism mounted to the frame assembly adjacent the rotatable disc, the dispensing mechanism including an extrusion nozzle for dispensing an adhesive onto at least a portion of the twist-tie.
- 19. An apparatus for applying a twist-tie to a surface of a container, the twist-tie of the type being substantially made of a nonmetallic material and having at least one metallic rib extending the length of the twist-tie, the apparatus comprising:
- a frame assembly;
- a drive motor mounted on the frame assembly;
- a payout mechanism coupled to the frame assembly, the payout mechanism including:
- a rotatable spool for holding a supply of twist-tie material;
- a brake means selectively engageable with the spool, the brake means having a released state wherein the spool is allowed to rotate freely and the continuous supply of twist-tie material can be extracted state wherein rotaton of the spool is prevented;
- means coupled to the frame assembly for extracting a continous length of twist-tie tie material from the supply of twist-tie material and for cutting a twist-tie of a desired length from the continuous length of twist-tie material, the extracting and cutting means including:
- a drive roller coupled to the drive motor, the continuous length of twist-tie material passing over the drive roller; and
- a feed arm assembly including:
- a movable lever arm having a rotatable feed roller; and
- an actuating means for moving the lever arm between a first position, wherein the feed roller is immediately adjacent the drive roller and in contact with the continuous length of twist-tie material to cause the feed roller to extract twist-tie material from the payout mechanism, and a second position wherein the feed roller is spaced from the drive roller and no extraction of twist-tie material occurs;
- a twist-tie applicator for receiving the twist-tie from the extracting and cutting means and for properly orienting the twist-tie so that the twist-tie can be applied to the surface of the container in a desired aligned orientation relative to the container, the twist-tie applicator including:
- a rotatable disc having a magnetic mechanism that creates a magnetic force for removing the twist-tie from the extracting and cutting means and for holding the twist-tie stationary relative to the rotatable disc as the disc rotates for application of the twist-tie to the surface of the container, the rotatable disc having a peripheral edge defining a channel with a flat base, the channel being configured to receive the twist-tie so that a longitudinal axis of the twist-tie is aligned substantially parallel with a longitudinal axis of the channel and so that the twist-tie is held substantially flat within the channel directly against the base of the channel by the magnetic force of the magnetic mechanism; and
- a dispensing mechanism mounted to the frame assembly adjacent the rotatable disc, the dispensing mechanism including an extrusion nozzle for selectively dispensing an adhesive onto at least a portion of the twist-tie, the adhesive material acting to secure the twist-tie to the surface of the container upon the application of the twist-tie to the surface of the container from the rotatable disc;
- a stripper member mounted on the frame assembly adjacent the rotatable disc for separating the twist-tie from the rotatable disc for application to the surface of the container, the stripper member being spaced from the peripheral edge of the rotatable disc; and
- a plurality of lamination rollers supported on the frame assembly adjacent the stripper member and the rotatable disc that act to urge the container and the twist-tie applied thereto against a portion of the stripper member to insure uniform contact between the surface of the container and the twist-tie.
- 20. An apparatus for applying a twist-tie to a surface of a container, comprising:
- a frame assembly;
- a payout mechanism coupled to the frame assembly, the payout mechanism holding a supply of twist-tie material wherein at least a portion of the twist-tie material is metallic;
- means coupled to the frame assembly for extracting a continuous length of twist-tie material from the supply of twist-fie material and for cutting a twist-tie of a desired length from the continuous length of twist-tie material; and
- a twist-tie applicator including a rotatable disc having a magnetic mechanism that creates a magnetic force for removing the twist-tie from the extracting and cutting means and for holding the twist-tie stationary relative to the disc as the disc rotates for application of the twist-tie to the surface of the container, the rotatable disc having a peripheral edge defining a flat base, the base being arranged and disposed to receive the twist-tie so that a longitudinal axis of the twist-tie is aligned substantially parallel with a longitudinal axis of the channel and so that the twist-tie is held substantially flat directly against the base by the magnetic force of the magnetic mechanism.
Parent Case Info
This is a continuation of application Ser. No. 08/034,350, filed Mar. 19, 1993, now abandoned. Priority of the prior application is claimed pursuant to 35 USC .sctn. 120.
US Referenced Citations (29)
Continuations (1)
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Number |
Date |
Country |
Parent |
34350 |
Mar 1993 |
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