Method for maximizing loading efficiency of pellet shaped articles

• US 5,768,996 A
• Filed: 03/17/1997
• Issued: 06/23/1998
• Est. Priority Date: 02/06/1987
• Status: Expired due to Fees

• Current Assignee: Ackley E. Michael
• Original Assignee: Ackley E. Michael
• Inventors: Ackley, E. Michael
• Primary Examiner(s): YAN, REN LUO
• Application Number:
  US08/819,725
• Time in Patent Office: 463 Days
• Field of Search: 101/35, 101/483, 101/37, 101/40, 198/382, 198/384, 198/393, 198/396, 198/397
• US Class Current: 101/483
• CPC Class Codes: A61J 3/007 Marking tablets or the like apparatus for printing on tablets or the like B41F17/36
• CPC Class Codes: B41F 17/36 for printing on tablets, pills, or like small articles
• CPC Class Codes: B41J 3/4073 Printing on three-dimensional objects not being in sheet or web form, e.g. spherical or cubic objects B41J3/283, B41J3/286 take precedence; building up a 3D object using individual droplets from jetting heads B29C64/112
• CPC Class Codes: B65G 47/1471 Movement in one direction, substantially outwards

Abstract

A pellet marking device which includes a ramp-type carrier system for receiving pellet-shaped articles to be imprinted from a feed hopper of improved efficiency, and for conveying the received pellet-shaped articles to a printing device which is combined with the carrier system and which is appropriate for applying desired indicia to the particular product which is to be handled. This may include the more traditional contact-type printing systems which are useful in conjunction with the majority of pellet-shaped articles to be handled, as well as non-contacting ink-jet systems for applying indicia to pellet-shaped articles which do not lend themselves to contact-type printing procedures. An improved feed hopper is provided which not only contributes to the foregoing, but which also operates to significantly improve the efficiency of the system by ensuring that the pellet-receiving pockets of the pellet-conveying system are filled to the greatest extent possible while maintaining an effective production rate.

Claims

1. A method for maximizing printing and pellet loading efficiency of a machine having a printing station for marking indicia on pellet shaped articles to be loaded in a hopper mounted on a ramped section of a conveyor passing beneath the hopper, said conveyor including a plurality of carrier bars having pockets structured to receive the pellet shaped articles from the hopper in the ramped section, the ramped section being angled at an angle of incline optimized for the pellet shaped articles, said method comprising the steps of:

evaluating dimensional and conveying characteristics of a plurality of pellet shaped articles;

determining the optimum angle of incline of the ramped section; and

setting the angle of incline of the ramped section based on the characteristics of the pellet shaped articles without requiring independent adjustment in the printing station, such that printing and pellet loading efficiency are maximized.

2. The method according to claim 1, further comprising fixing the angle of incline of the ramped section at said optimum angle of incline.

3. The method according to claim 1, wherein the angle of incline is set to between about 5°

-60°

.

4. A method for maximizing operating speed and pellet loading efficiency of a machine having a plurality of interrelated machine stations including a printing station for marking indicia on pellet shaped articles to be loaded in a hopper mounted on a ramped section of a conveyor passing beneath the hopper, said conveyor including a plurality of carrier bars having pockets structured to receive the pellet shaped articles from the hopper in the ramped section, the ramped section being angled at an angle of incline optimized for the pellet shaped articles, said method comprising the steps of:

evaluating dimensional and conveying characteristics of a plurality of pellet shaped articles;

determining the optimum angle of incline of the ramped section; and

setting the angle of incline of the ramped section based on the characteristics of the pellet shaped articles without adversely impacting operation of any of the other machine stations, such that operating speed and pellet loading efficiency are maximized.

5. The method according to claim 4, further comprising fixing the angle of incline of the ramped section at said optimum angle of incline.

6. The method according to claim 4, wherein the angle of incline is set to between about 5°

-60°

.