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BASE UNIT TORQUE REQUIREMENTS
|Clamp Nut Bolts||Spring Mount Bolts|
|Unit Size||Bolt Size||Torque||Bolt Size||Torque|
|LP-6||1/2-20||Wrench Tight||1/4-28||Wrench Tight|
|LP-9||3/8-24||"||1/2-20||80 Ft. Lbs.|
|LP-12||"||50 Ft. Lbs.||5/8-18||165 Ft. Lbs|
|LP-18||5/8-18||165 Ft. Lbs.||7/8-14||351 Ft. Lbs.|
|Use a minimum of a Class '5' hex head bolt.
Torque settings use a socket on a breakaway type torque wrench.
An untooled bowl consists of a vertical band and a domed bottom with either an external helical track or an internal helical track. The internal track can also be inverted.
A conic section, calculated to fit at the required angle, attached between the bottom side of the track and the bowl wall to prevent parts from stacking and causing jams between the tracks.
The vibratory feeder bowl is the basic bowl complete with internal or external tooling custom designed to meet feed rate, part orientation and other specifications as required.
The correct position of the piece part at the discharge exit as required by the assembly or placing operation.
The number of parts discharged per minute or hour, as needed to maintain production requirements.
Any construction outside of the vertical band which separates, orients, selects, confines, or relieves pressure buildup on oriented parts.
The structure attached to the outer band for the purpose of re-circulating parts, to the inside of the bowl, that have been rejected by the orienting and selection devices.
A tooled section designed specifically to segregate only those parts that are in the correct attitude.
A short section of interior track that can be set at various widths. The length depends on the size of the part. This can also be an external type. (After exit to the outside of the bowl.) This may be either a stainless or tool steel insert that can be adjusted to either orient or limit parts to a single file.
A stainless or tool steel insert placed inside or outside the bowl to control the part level or orientation.
This is a continuation of the band of the bowl to hold it to the cross arms of the base drive unit. Clamp nuts are used to attach small diameter bowls to the top member. On large diameter bowls, clamp nuts, along with a center bowl, are provided.
A straight section of either stainless or tool steel used to select or orient parts. (Can be inside or outside of the bowl.)
A stainless steel deflector placed on the inside of the bowl bottom to guard the return hole thus allowing parts to flow evenly back up the track from the return pan.
A small diameter tube bolted or welded in place which is sometimes used to assist in moving parts. It is adjusted in the process of development to assist in orientation or final selection with the minimum amount of air pressure.
An area with a stationary or adjustable gap which orients parts (bolts, screws, etc.) to a "hanging attitude"
Properly placed tooling to change the attitude of a part to the proper position for final selection. A per-orientor will generate higher feed rates and minimize re-circulation of the parts, thus extending the life of the bowl, especially with regard to metal or abrasive parts.
An area of the bowl tooling just prior to the entrance to confinement where the parts will buckle if the discharge is full and re-circulate in the bowl. This relieves part pressure which would otherwise cause jamming conditions or miss-oriented parts to bridge across the bowl tooling.
A means of providing a pressure relief when the parts will not efficiently bubble-off of their own accord. This device can be either a proximity, photo-cell, L.E.D. fiber optic, or pneumatic type sensor to signal the feeder to start or stop. Also a sensor can activate an air jet to eject excess parts from the entrance to confinement, in which case the bowl would continue to run (the latter is most generally used with multiple track bowls).
A short section of track that is mounted tangent to the centerline of the bowl. The discharge chute controls parts in the attitude, or orientation, achieved in the bowl, and , in most cases, conveys them to a horizontal vibratory straight line of gravity track.
A containing section used to control parts through the discharge chute. Confinements are designed in a manner to allow access to the parts by removal of bolted-on sections in most cases.
A scrap chute is used to discharge small particles of foreign material from the bowl without interfering with flow of the piece parts.
A quick-opening "window" that is provided to facilitate changing from one part to another when multiple styles or sizes of parts are being fed from the same bowl.
That portion of the basic bowl, pre-orientor, final selector or discharge chute with which the part makes contact. This is a variable dimension, depending upon the particular piece part.
A solid steel block of predetermined size and weight that is added to the exterior of the bowl. The location is determined on a static counter-balance wheel, in order to off-set the weight of the external tooling, etc.
A storage hopper is used to hold extra parts for replenishing the supply in the bowl. Hoppers are set to operate automatically by a signal from a level control switch, thus eliminating either a deficiency or an over-supply of parts in the bowl.
Gravity tracks and vertical magazines are methods of conveying parts. This type track must be set on an angle great enough that gravity will convey the parts from the discharge of the feed system. A magazine is a track in which oriented parts are stacked. This device is usually preloaded; the feeder maintains a full stack.
A straight line drive unit is designed to produce linear vibratory motion. It is used to power tracks that convey parts horizontally from the feeder bowl discharge to a dead nest or mechanism.
Overhang refers to the amount of straight track tooling that extends beyond either end of the inline drive top member.
A mechanical device placed at the end of the feeder discharge, horizontal straightline, or gravity track to isolate the end part.
A mechanical means of placing an escaped part into a nest or onto another piece part.
When the vibratory drive unit will not transmit power to the vibratory bowl, it is often caused by one of the following reasons:
When a vibratory feeder has an insufficient amount of vibration or slow, sporadic or irregular parts movement, it is usually due to one of the following reasons:
The following procedure should be used to check the tuning of any 60 or 120 HZ base drive unit:
With the variable speed controller on and the proper level of parts in the bowl, set the dial at 35% to 40% of the in-put voltage. Some parts movement should be detected at this point. If the feed rate is too slow, increase the controller setting slowly until the desired feed rate is attained. When 80% of the input voltage has been used without reaching the desired amplitude or there is excessive or violent vibration, check for interference points where something may be contacting the bowl or base drive unit, then follow these tuning techniques to achieve maximum efficiency:
When the vibratory straight line driver will not transmit power to the horizontal vibratory track, it is often caused by one of the following reasons:
When a straight line driver has an insufficient amount of vibration or slow, sporadic or irregular parts movement, it is usually due to one of the following reasons:
The following procedure should be used to check the tuning of straight line drivers:
With the variable speed controller on and the track full of parts, set the dial at 35% to 40% of the in-put voltage. Some parts movement should be detected at this point. If the feed rate is too low, increase the controller setting slowly until the desired feed rate is attained. When 80% of the in-put voltage has been used without reaching the desired amplitude or there is excessive or violent vibration, check for interference points where something may be contacting the track or driver, then follow these tuning checks for peak performance.
Click the "Play" button to proceed"