Apparatuses for cutting a unit dose blister card

• US 8,453,548 B2
• Filed: 03/23/2010
• Issued: 06/04/2013
• Est. Priority Date: 03/23/2010
• Status: Active Grant

• Current Assignee: Omnicell Incorporated
• Original Assignee: McKesson Automation Incorporated (Omnicell Inc)
• Inventors: Jaynes, Robert
• Primary Examiner(s): Choi, Stephen
• Application Number:
  US12/729,667
• Publication Number:
  US 20110232447A1
• Time in Patent Office: 1,169 Days
• Field of Search: 835/85, 835/84, 836/94, 836/97, 836/991.1, 838/21, 836/38, 834/52, 834/54, 834/59, 833/76, 833/85, 833/82, 83607-609
• US Class Current: 83/385
• CPC Class Codes: B26D 1/085 for thin material, e.g. for sheets, strips or the like
• CPC Class Codes: B26D 5/28 the control means being responsive to presence or absence of work
• CPC Class Codes: B26D 7/025 acting upon planar surfaces B26D7/04 takes precedence
• CPC Class Codes: B26D 7/0633 by grippers
• CPC Class Codes: B65B 5/00 Packaging individual articles in containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, jars
• CPC Class Codes: B65H 2701/1942 Web supporting regularly spaced non-adhesive articles
• CPC Class Codes: B65H 35/06 from or with blade, e.g. shear-blade, cutters or perforators from or with revolving blade B65H35/08
• CPC Class Codes: Y10T 83/576 Clamp actuating means driven by tool or tool support
• CPC Class Codes: Y10T 83/7487 Means to clamp work
• CPC Class Codes: Y10T 83/8779 Oscillating tool urged axially
• CPC Class Codes: Y10T 83/9447 Shear type

Abstract

An apparatus for cutting unit dose blisters from a blister card is provided. The apparatus may include a blade, a guillotine head and a card holder. The guillotine head may be operatively coupled to the blade. The guillotine head may be configured to move the blade through a range of motion that intersects a plane of a platform on which the blister card is positionable for cutting. The card holder may be operatively coupled to the guillotine head to hold the blister card against the platform in advance of the blade being moved through the plane of the platform. The blade may be biased to maintain a surface of the blade in contact with a cutting base at least until the blade intersects the plane of the platform.

Claims

1. An apparatus for cutting a blister card, the apparatus comprising:

a blade;

a guillotine head operatively coupled to the blade, the guillotine head being configured to move the blade through a range of motion that intersects a plane of a platform on which the blister card is positionable for cutting, wherein the blade is coupled to the guillotine head via a blade carriage comprising a shaft and a torsion spring, wherein the blade is mounted to the shaft and biased by the torsion spring to contact a cutting base, the cutting base including a channel defined by shoulder elements against which the blade makes slideable contact as the blade approaches the plane of the platform; and

a card holder operatively coupled to the guillotine head to hold the blister card against the platform in advance of the blade being moved through the plane of the platform,

wherein the blade is biased to maintain a surface of the blade in contact with the cutting base at least until the blade intersects the plane of the platform.

2. The apparatus of claim 1, wherein the blade is rotatably coupled to the shaft and the torsion spring is positioned to bias the blade toward contact with the cutting base.

3. The apparatus of claim 1, wherein the blade carriage is mounted to the guillotine head at an angle with respect to the plane of the platform.

4. The apparatus of claim 1, wherein the blade is mounted to the shaft such that the blade extends substantially at a tangent to a surface of the shaft.

5. The apparatus of claim 1, wherein the blade is mounted to the guillotine head such that a cutting edge of the blade forms an angle with respect to the plane of the platform.

6. The apparatus of claim 5, wherein the cutting edge of the blade is only in contact with the blister card at a discrete point at any instant in time when the blade moves through the plane of the platform.

7. The apparatus of claim 1, wherein the blade is in a fixed position relative to the card holder for at least a period of the range of motion and slides along a face of the cutting base for at least another period of the range of motion.

8. The apparatus of claim 1, wherein the blade is in a fixed position relative to the card holder for at least a period of the range of motion and moves relative to the card holder for at least another period of the range of motion.

9. The apparatus of claim 1, wherein the card holder extends from the guillotine head in a direction substantially perpendicular to the plane of the platform and the blade extends from the guillotine head in a direction substantially parallel to the card holder and is in contact with the cutting base.

10. The apparatus of claim 1, wherein the cutting base includes a channel defined by shoulder elements that extend parallel to a direction of motion of the blade, the channel receiving the card holder and enabling movement of the card holder relative to the platform within the channel.

11. The apparatus of claim 1, further comprising a sensor positioned to detect a seating status of the card holder to enable control of movement of the guillotine head based on the seating status.

12. The apparatus of claim 11, wherein the sensor provides an interrupt signal to prevent cutting of the blister card by altering movement of the guillotine head in response to an indication that the card holder fails to seat prior to the blade reaching the plane of the platform.

13. The apparatus of claim 12, wherein the interrupt signal is provided to a processor configured to control movement of the guillotine head and operation of a drive motor driving motion of the guillotine head.

14. An apparatus for cutting a blister card, the apparatus comprising:

a platform on which the blister card is positionable for cutting;

a blade;

a guillotine head operatively coupled to the blade, the guillotine head being configured to move the blade through a range of motion that intersects a plane of the platform, wherein the blade is coupled to the guillotine head via a blade carriage comprising a shaft and a torsion spring, wherein the blade is mounted to the shaft and biased by the torsion spring to contact a cutting base, the cutting base including a channel defined by shoulder elements against which the blade makes slidable contact as the blade approaches the plane of the platform; and

a card holder operatively coupled to the guillotine head to hold the blister card against the platform in advance of the blade being moved through the plane of the platform, the card holder presenting a face that aligns with an edge of the platform to form a cutting base along which the blade moves to cut the blister card wherein the card holder is received in the channel.

15. The apparatus of claim 14, wherein the blade is mounted to the guillotine head such that a cutting edge of the blade forms an angle with respect to the plane of the platfoim.

16. The apparatus of claim 15, wherein the cutting edge of the blade is only in contact with the blister card at a discrete point at any instant in time when the blade moves through the plane of the platform.

17. The apparatus of claim 14, wherein the blade is in a fixed position relative to the card holder for a first period of the range of motion, and the blade slides along the cutting base for a second period of the range of motion.