INSPECTION SYSTEM

• US 20150352596A1
• Filed: 12/17/2013
• Published: 12/10/2015
• Est. Priority Date: 01/17/2013
• Status: Active Grant

• Current Assignee: Ishida Company Limited
• Original Assignee: Ishida Company Limited
• Inventors: YAMAKAWA, Atsushi
• Granted Patent: US 9,522,414 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B07C 5/16 Sorting according to weight sorting eggs A01K43/00; weighing apparatus per se G01G
• CPC Class Codes: B07C 5/18 using a single stationary weighing mechanism
• CPC Class Codes: B07C 5/36 Sorting apparatus characterised by the means used for distribution sorting according to destination B07C3/003, B07C3/02
• CPC Class Codes: B07C 5/362 Separating or distributor mechanisms switches for postal sorting B07C3/065; particular discharging devices for B65G47/74
• CPC Class Codes: B65G 21/06 constructed to facilitate rapid assembly or dismantling
• CPC Class Codes: B65G 47/766 Adjustable ploughs or transverse scrapers
• CPC Class Codes: G01G 11/00 Apparatus for weighing a continuous stream of material during flow; Conveyor belt weighers
• CPC Class Codes: G01G 19/03 for weighing during motion G01G19/04, G01G19/07 take precedence check weighing of materials dispensed into removable containers G01G15/00; weighing a continuous stream of material during flow G01G11/00; G01G19/02, e.g. G01G19/022, G01G19/045 take precedence
• CPC Class Codes: G01G 21/23 Support or suspension of weighing platforms G01G21/24 takes precedence
• CPC Class Codes: G01G 21/28 Frames, Housings

Abstract

An inspection system is provided with a weight inspection device, a sorting device, and a frame. The weight inspection device includes a weighing conveyor for conveying a weighing object, and a load cell for weighing the weighing object conveyed by the weighing conveyor, and inspects the weighing object using the result of weighing by the load cell. The sorting device includes an sorting conveyor arranged downstream of the weighing conveyor, a movable member being configured to come in contact with the weighing object conveyed by the sorting conveyor to change a traveling direction of the weighing object, and a cylinder for driving the movable member based on the result of inspection by the weight inspection device so as to cause the movable member to come in contact with the weighing object. The frame supports the weighing conveyor, the load cell, and the movable member.

Claims

1. An inspection system comprising:

a weight inspection device including a weighing conveyor for conveying a weighing object and a weighing instrument for weighing the weighing object conveyed by said weighing conveyor, the weight inspection device inspecting the weighing object using the result of weighing by the weighing instrument;

a sorting device including a sorting conveyor arranged downstream of the weighing conveyor, a movable member being configured to come in contact with the weighing object conveyed by said sorting conveyor to change a traveling direction of the weighing object, and a drive part for driving said movable member based on the result of inspection by the weight inspection device so as to cause the movable member to come in contact with the weighing object;

a common frame for supporting the weighing conveyor, the weighing instrument, and the movable member; and

a controller connected to the weight inspection device and the sorting device, wherein

the movable member of the sorting device includes;

a rotary shaft supported by the common frame and rotatably driven by the drive part;

an arm member, extending from the rotary shaft in a radial direction of the rotary shaft being configured to come in contact with the weighing object when the rotary shaft is rotatably driven by the drive part; and

a balance member extending from the rotary shaft in an opposite direction from the arm member, the controller being configured to control the weight inspection device and the rotary shaft of the movable member such that a timing at which the weighing object is weighed by the weighing instrument and a timing at which the rotary shaft is driven by the drive part at least partially overlap.

3. The inspection system according to claim 1, wherein

the rotary shaft extends in a direction perpendicular to a conveying surface of the sorting conveyor;

and

the arm member and the balance member rotate along a plane parallel to the conveying surface of the sorting conveyor.

4. The inspection system according to claim 1, wherein

the rotary shaft extends in a direction perpendicular to a conveying surface of the weighing conveyor;

and

the balance member intersects a plane through which a center of gravity of the arm member passes when the rotary shaft is rotatably driven by the drive part.

5. The inspection system according to claim 4, wherein

the center of gravity of the balance member is disposed in the plane through which the center of gravity of the arm member passes when the rotary shaft is rotatably driven by the drive part.

6. The inspection system according to claim 1, wherein

the balance member is provided in order to suppress vibration of the arm member in the direction perpendicular to the conveying surface of the weighing conveyor.

7. The inspection system according to claim 1, wherein

the moment of inertia of the arm member and the balance member about the rotary shaft is larger than the moment of inertia of only the arm member about the rotary shaft.

8. The inspection system according to claim 1, wherein

a product of the weight of the balance member and the distance from the center of gravity of the balance member to an axial center of the rotary shaft is set so as to approach a product of the weight of the arm member and the distance from the center of gravity of the arm member to the axial center of the rotary shaft.

9. The inspection system according to claim 1, wherein

the weight of the balance member is equal to or greater than 30% of the total of the weight of the balance member and the weight of the arm member.

10. The inspection system according to claim 9, wherein

the weight of the balance member is equal to or greater than 50% of the total of the weight of the balance member and the weight of the arm member.

12. The inspection system according to claim 1, wherein

the common frame also supports the sorting conveyor.

2. (canceled)

11. (canceled)